WO2022141677A1 - Apparatus and method for synergistic treatment of liquid-containing oil sludge by pyrolysis gas condensation - Google Patents

Apparatus and method for synergistic treatment of liquid-containing oil sludge by pyrolysis gas condensation Download PDF

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Publication number
WO2022141677A1
WO2022141677A1 PCT/CN2021/072363 CN2021072363W WO2022141677A1 WO 2022141677 A1 WO2022141677 A1 WO 2022141677A1 CN 2021072363 W CN2021072363 W CN 2021072363W WO 2022141677 A1 WO2022141677 A1 WO 2022141677A1
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Prior art keywords
liquid
oil
pyrolysis gas
sludge
containing sludge
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PCT/CN2021/072363
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French (fr)
Chinese (zh)
Inventor
金兆迪
张哲娜
丛培超
孙启刚
谢金坤
牛玉国
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杰瑞环保科技有限公司
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Publication of WO2022141677A1 publication Critical patent/WO2022141677A1/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Definitions

  • Embodiments of the present disclosure relate to a device and method for co-processing liquid sludge with pyrolysis gas condensation.
  • Thermal desorption technology uses a heat source to heat oily wastes. Under anaerobic conditions, the organic matter and water in the oily wastes are evaporated and pyrolyzed to form pyrolysis gas, so that the organic matter and water are separated from the solid phase. The oil resources in the pyrolysis gas are recovered by condensation, so as to realize the harmless treatment and resource utilization of oily wastes.
  • Oily sludge is one of the main pollutants generated in the process of oil and gas field development, refining, gathering and transportation. Oily sludge is complex in composition, mainly composed of water, clay particles, various oils, asphaltenes, bacterial substances and toxic and harmful refractory organic substances, etc. healthy. Therefore, oily sludge must be treated.
  • At least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, the method comprising: providing liquid-containing sludge and pyrolysis gas; contacting the liquid-containing sludge and the pyrolysis gas to perform heat exchange At least part of the oil phase in the pyrolysis gas is condensed, and at least part of the water phase and at least part of the oil phase in the liquid-containing sludge are evaporated to obtain oil-water vapor and solid-containing oil phase.
  • a protective gas is mixed into the liquid-containing sludge .
  • the flow rate of the liquid-containing sludge is adjusted so that the temperature of the obtained oil and water vapor is between 100°C and 200°C. within the range.
  • contacting the liquid-containing sludge with the pyrolysis gas to perform heat exchange includes: transporting the liquid-containing sludge to a The liquid inlet of the tank body transports the pyrolysis gas to the air inlet of the tank body, and the liquid-containing sludge and the pyrolysis gas are contacted in the tank body for heat exchange.
  • a sprayer is arranged in the tank, the sprayer communicates with the liquid inlet, and the sprayer is connected to the liquid inlet through the The sprayer sprays the liquid-containing sludge to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange.
  • a booster pump and liquid phase adjustment are used in the process of transporting the liquid-containing sludge to the liquid inlet. At least one of the valves regulates the flow of the liquid sludge.
  • the tank body further includes an exhaust port for discharging the oil and water vapor, and the tank body further includes an exhaust port for exhausting the oil and water vapor.
  • a temperature transmitter is arranged in the conveying channel of the oil and water vapor, and the method further includes: controlling the temperature of the oil and water vapor at 100° C. through the interlocking control of the temperature transmitter and the liquid phase regulating valve ⁇ 200°C.
  • At least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, further comprising: condensing the oil-water vapor to obtain an oil-water mixture and a non-condensable gas;
  • the oil-water mixture is subjected to oil-water separation to obtain light oil and oily wastewater; and the non-condensable gas is collected.
  • At least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, further comprising: performing sedimentation separation on the solid-containing oil phase to obtain heavy oil and oil-containing solid phase.
  • At least one embodiment of the present disclosure also provides a device for co-processing liquid-containing sludge by pyrolysis gas condensation, including: a first tank body, including a first liquid inlet and a first gas inlet; a first pipeline, connected with the liquid-containing sludge The sludge source communicates with and extends to the first liquid inlet; a second pipeline communicates with the pyrolysis gas source and extends to the first inlet; wherein the first pipeline is configured to The liquid-containing sludge obtained from the liquid-containing sludge source is delivered to the first liquid inlet, and the second pipeline is configured to deliver the pyrolysis gas obtained from the pyrolysis gas source to the first inlet, The liquid-containing sludge and the pyrolysis gas are contacted in the first tank for heat exchange.
  • the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes: a booster pump arranged on the first pipeline, and a booster pump arranged on the booster pump and the first pipeline. Liquid phase regulating valve between liquid inlets.
  • the device for co-processing liquid sludge with pyrolysis gas condensation provided by at least one embodiment of the present disclosure further includes a sprayer disposed in the first tank, wherein the sprayer and the first tank The liquid inlet is connected, the first liquid inlet and the sprayer are located at the upper part of the first tank body, and the first air inlet is located at the lower part of the first tank body.
  • the shower includes a plurality of shower heads, and the plurality of shower heads are arranged in one or more rows.
  • the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes a third pipeline communicated with the protective gas source, wherein the first tank further includes a first tank located at the top thereof. Two air inlets, the third pipeline extends to the second air inlet.
  • the second air inlet is communicated between the shower and the first liquid inlet, so that The protective gas and the liquid-containing sludge are mixed and sent to the sprayer.
  • the apparatus for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes a condenser, wherein the first tank body includes a first exhaust port disposed at the top thereof, and the condensation
  • the device includes a second tank, the second tank includes a third air inlet, and the first air outlet is connected to the third air inlet.
  • a temperature transmitter is provided on the pipeline connecting the first exhaust port and the third intake port , the liquid phase regulating valve and the temperature transmitter are interlocked and controlled, and the temperature of the oil and water vapor discharged from the first exhaust port is controlled at 100°C-200°C.
  • the condenser further includes an oil-water separator, and the second tank includes a first drain disposed at the bottom of the second tank.
  • the oil-water separator includes a second liquid inlet arranged at the top of the oil-water separator, and the first liquid discharge port communicates with the second liquid inlet.
  • the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes an oil separator, wherein the first tank body further includes a second liquid discharge port disposed at the bottom thereof, so The oil separator includes a third liquid inlet, and the second liquid outlet communicates with the third liquid inlet.
  • FIG. 1 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to an embodiment of the present disclosure
  • FIG. 2 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to yet another embodiment of the present disclosure
  • FIG. 3 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by an embodiment of the present disclosure
  • FIG. 4 is a flow chart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by yet another embodiment of the present disclosure
  • FIG. 5 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure
  • FIG. 6 is a flowchart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure
  • FIG. 7 is a flow chart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure.
  • FIG. 8 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure.
  • FIG. 9 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by yet another embodiment of the present disclosure.
  • FIG. 10 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure.
  • direct spraying or indirect cooling are mostly used to condense the high-temperature pyrolysis gas generated by thermal desorption.
  • the cooling medium is mostly circulating water or circulating oil in the system, but the heat released by the condensation of the high-temperature pyrolysis gas cannot be effectively used, resulting in a waste of resources.
  • direct spraying sedimentation separation water is often used to condense the high-temperature pyrolysis gas.
  • the high-temperature pyrolysis gas also heats the circulating sedimentation separation water. In order to make the sedimentation separation water further recycled, it is necessary to use Heat exchange equipment and external cooling water cool down the sedimentation separation water, thereby increasing additional energy consumption. Therefore, it is urgent to optimize the high-temperature pyrolysis gas condensation process to realize the utilization of the waste heat of the high-temperature pyrolysis gas.
  • liquid sludge with high liquid content such as oily wastewater scum, aging oil, oily emulsion, etc.
  • the energy of thermal desorption technology can be directly used.
  • High consumption will result in poor economy; the incineration method not only requires low heat utilization rate but also requires the calorific value of raw materials, but also cannot recover oil resources, and will produce dust pollution and gas pollution; due to oily wastewater scum, aging oil, oily
  • the stability of the emulsion, etc. is very strong.
  • the conventional methods of concentration, dehydration and chemical demulsification will also make the dehydration process very difficult. Even if conventional chemicals are added, it is not easy to achieve effective separation of oil and water. The quality of the oil is also very poor.
  • the inventors of the present disclosure have noticed that the temperature of the high-temperature pyrolysis gas can usually reach 250°C to 550°C.
  • the heat of the gas cannot be used, and the consumption of circulating water, circulating oil and sedimentation separation water is also very large, resulting in a lot of waste of resources.
  • the inventors of the present disclosure also noticed that heating the liquid-containing sludge with high liquid content is beneficial to the recovery of oil resources therein. Therefore, high-temperature pyrolysis gas can be used to heat the liquid-containing sludge, while the liquid-containing sludge can be heated by using high-temperature pyrolysis gas.
  • the sludge condenses the high-temperature pyrolysis gas, thus realizing the co-processing of the liquid-containing sludge by the pyrolysis gas condensation, so as to maximize the utilization of resources and avoid resource waste and environmental pollution.
  • the high-temperature pyrolysis gas can be used for heat exchange in contact with the liquid-containing sludge, so as to condense the high-temperature pyrolysis gas, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed; and the liquid-containing sludge is heated to make the liquid-containing sludge
  • the water phase and at least a part of the oil phase in the sludge are evaporated, so that more oil resources can be recovered without adding additional energy consumption, and the separation of oil and water in the liquid sludge can be achieved without using any chemicals, And the oil resources in the liquid sludge are recovered to obtain high-quality oil resources.
  • FIG. 1 is a structural block diagram of an apparatus for co-processing liquid-containing sludge with pyrolysis gas condensation according to an embodiment of the disclosure
  • the device 1 for co-processing liquid-containing sludge by pyrolysis gas condensation includes: a first tank 10 , a first pipeline 13 and a second pipeline 14 , the first tank 10 includes a first liquid inlet port 11 and first air inlet 12 .
  • the first pipeline 13 communicates with the liquid-containing sludge source and extends to the first liquid inlet 11
  • the second pipeline 14 communicates with the pyrolysis gas source and extends to the first inlet 12
  • the first pipeline 13 is configured In order to deliver the liquid-containing sludge obtained from the liquid-containing sludge source to the first liquid inlet 11, the second pipeline 14 is configured to deliver the pyrolysis gas obtained from the pyrolysis gas source to the first inlet 12, which contains The liquid sludge and the pyrolysis gas are contacted in the first tank 10 for heat exchange.
  • the extension of the first pipeline 13 to the first liquid inlet 11 means that the first pipeline 13 communicates with the first liquid inlet 11, and the first pipeline 13 can transmit the liquid-containing sludge to the first liquid inlet 11.
  • the extension of the second pipeline 14 to the first gas inlet 12 means that the second pipeline 14 is connected to the first gas inlet 12 , and the second pipeline 14 can transmit the pyrolysis gas to the first gas inlet 12 .
  • the liquid-containing sludge is a fluid sludge
  • the total mass percentage of water and oil in the liquid-containing sludge is 70% to 95%.
  • the mass percentage content of water and oil in the liquid-containing sludge is 70%, 75%, 80%, 85%, 90% or 95%, which can ensure that the liquid-containing sludge is carried out well in the first pipeline 13. It can also ensure that the liquid-containing sludge can condense the pyrolysis gas well.
  • pyrolysis gas is produced by thermal desorption of oily waste.
  • the process of thermal desorption is the evaporation and pyrolysis of organic pollutants in the oily waste under the condition of high temperature and anaerobic conditions, and finally the oil and water in the oily waste are completely separated from the solid phase, and the oil resources are completely separated. It is recycled to realize the harmless treatment and resource utilization of oily waste.
  • the thermal desorption treatment can be performed in one or more pyrolysis furnaces, and the temperature of the thermal desorption treatment is controlled at 250°C to 550°C, and the thermal desorption time is controlled at 0.4 to 3.2 hours.
  • the degassing temperature is 250-550°C.
  • the temperature of the pyrolysis gas is 250°C, 300°C, 350°C, 400°C, 450°C, 500°C or 550°C.
  • the heavy oil components in the pyrolysis gas are condensed into a liquid phase, and the stability of the liquid sludge is destroyed under the heating effect of the pyrolysis gas, and the emulsification is reduced.
  • the oil component is heated by the pyrolysis gas to form water vapor and oil vapor.
  • the uncondensed gas phase in the pyrolysis gas and the oil vapor and water vapor evaporated from the liquid sludge are mixed to form oil and water vapor.
  • the first liquid inlet 11 is closer to the top of the first tank body 10 than the first air inlet 12 .
  • the liquid flows in the first direction under the action of gravity, and the surface of the first tank 10 on the opposite side of the first direction is the first direction.
  • the top of a tank 10 and the surface of the first tank 10 on the same side as the first direction is the bottom of the first tank 10 .
  • the liquid-containing sludge will flow downward (ie, in the direction away from the top of the first tank 10 in the first tank 10 ) after flowing into the first tank 10 from the first liquid inlet 11 .
  • the molecular spacing of the pyrolysis gas is large, the specific performance is that the density is small.
  • the liquid-containing sludge input from the first liquid inlet 11 closer to the top of the first tank body 10 flows downward under the action of gravity, and the surface in contact with the upwardly flowing pyrolysis gas input from the first inlet 12 More, so that the contact between the liquid sludge and the pyrolysis gas is more sufficient, and the process of heat exchange is more sufficient.
  • the distance from the first air inlet 12 to the top of the first tank 10 and the distance from the first liquid inlet 11 to the top of the first tank 10 can also be approximately equal;
  • the gas port 12 and the first liquid inlet 11 may also be further away from the top of the first tank body 10 , which is not limited in the embodiment of the present disclosure.
  • the apparatus 1 for co-processing liquid sludge by pyrolysis gas condensation further includes a booster pump 15 arranged on the first pipeline 13 , a booster pump 15 arranged on the booster pump 15 and the first liquid inlet 11 .
  • the liquid phase regulating valve 16 between them. Both the booster pump 15 and the liquid phase regulating valve 16 can adjust the flow rate of the liquid-containing sludge.
  • the booster pump 15 can adjust the flow rate of the liquid-containing sludge by increasing the transmission speed of the liquid-containing sludge, that is, providing power for the flow of the liquid-containing sludge.
  • the liquid-phase regulating valve 16 can adjust the input amount of the liquid-containing sludge to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of the liquid-containing sludge is fully contacted with the pyrolysis gas.
  • the liquid phase regulating valve 16 can also be interlocked with the temperature transmitter mentioned later to control the temperature of the oil and water vapor.
  • the opening degree of the liquid phase control valve 16 can be automatically controlled, so as to realize the adjustment of the flow rate of the liquid-containing sludge.
  • the liquid phase regulating valve 16 includes an electric regulating valve, a pneumatic regulating valve, a hydraulic regulating valve, and the like.
  • the apparatus for co-processing liquid sludge by pyrolysis gas condensation further includes a sprayer 17 disposed in the first tank 10 , the sprayer 17 is connected to the first tank 10 .
  • a liquid inlet 11 communicates with each other, the first liquid inlet 11 and the shower 17 are located at the upper part of the first tank body 10 , and the first air inlet 12 is located at the lower part of the first tank body 10 .
  • the liquid-containing sludge is conveyed to the sprayer 17 communicated with the first liquid inlet 11, and the sprayer 17 is configured to spray the liquid-containing sludge to the first liquid inlet. 12
  • the input pyrolysis gas, the pyrolysis gas is condensed through the spraying of the sprayer 17, so that the liquid-containing sludge and the pyrolysis gas are in more sufficient contact.
  • first liquid inlet 11 and the shower 17 on the upper part of the first tank 10 and the first air inlet 12 on the lower part of the first tank 10 can make the spray from the shower 17
  • the liquid-containing sludge can be in contact with the pyrolysis gas entering from the first air inlet 12, and the pyrolysis gas is sufficiently sprayed to cool down, and the formed oil and water vapor can also rise and be quickly discharged.
  • the first tank 10 is divided into a first part 101 and a second part 102 along the horizontal centerline AA′, and the upper part of the first tank 10 is closer to the first tank 10
  • the first part 101 at the top of the first tank body 10 is the second part 102 away from the top of the first tank body 10 .
  • the shower 17 includes a plurality of shower heads 171, and the plurality of shower heads 171 are arranged in one or more rows. In the structure shown in FIG. 1 , three shower heads 171 are arranged in a row. For example, more spray heads 171 may also be arranged in one or more rows, so that the area between the first side wall and the second side wall of the first tank 10 can be sprayed with liquid sludge.
  • the plurality of shower heads 171 are arranged in multiple rows, and the multiple rows may be that the plurality of shower heads 171 are located on a plane at the same height and arranged in multiple rows, or the multiple shower heads 171 may be arranged at different heights.
  • the planes are arranged in rows.
  • the plurality of shower heads 171 may be disposed along the circumference of the inner edge of the first tank body 10 , or may only be disposed in the center of the first tank body 10 , which is not limited in the embodiment of the present disclosure.
  • the shower head 171 includes a multi-head atomizing nozzle, a square nozzle, a high-pressure cleaning nozzle, a hollow cone nozzle, a fan-shaped nozzle, a spiral nozzle and the like.
  • the sprinkler 17 may also include a sprinkler head 171, and the sprinkler head is a multi-head atomizing nozzle or a fan-shaped nozzle, which can also ensure that the liquid-containing sludge sprayed from the sprinkler head 171 can be ensured. Cover a large enough area to make the liquid-containing sludge and the pyrolysis gas contact more fully, so that the heat exchange process between the liquid-containing sludge and the pyrolysis gas is more sufficient.
  • the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation provided by at least one embodiment of the present disclosure further includes a third pipeline 18 that communicates with the protective gas source, and the first tank 10 further includes a The second air inlet 19 at the top, the third pipeline 18 extends to the second air inlet 19, the third pipeline 18 is configured to deliver the protective gas obtained from the protective gas source to the second air inlet 19, and the protection The gas can prevent the gas volatilized from the liquid-containing sludge or the pyrolysis gas from being oxidized by the oxygen remaining in the first tank 10 or the oxygen introduced in the process of conveying the liquid-containing sludge.
  • the extension of the third pipeline 18 to the second air inlet 19 means that the third pipeline 18 communicates with the second air inlet 19 , and the third pipeline 18 can transmit the shielding gas to the second air inlet 19 .
  • the second air inlet 19 is located at the top of the first tank body 10 , which can facilitate the communication of the second air inlet 19 between the sprayer 17 and the first liquid inlet 11 , which can reduce the amount of the second air inlet 19 in the first tank body 10 .
  • the length of the pipeline, at the same time, is also conducive to the downward flow of the shielding gas to directly mix with the liquid-containing mud.
  • the second air inlet 19 is communicated between the shower 17 and the first liquid inlet 11 , so that the protective gas enters from the second air inlet 19 and is sent to the shower 17 and the first liquid inlet 11 , so that after entering from the first liquid inlet 11 , the liquid-containing sludge is mixed with the protective gas first, and then the mixture formed by the protective gas and the liquid-containing sludge is sent to the sprayer 17 .
  • the contact area between the liquid-containing sludge and the pyrolysis gas can be larger during spraying, thereby making the heat exchange between the liquid-containing sludge and the pyrolysis gas more sufficient.
  • the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation further includes a gas regulating valve 20 disposed on the third pipeline 18, and the gas regulating valve 20 is configured to regulate the flow rate of the protective gas.
  • the opening degree of the gas regulating valve 20 can be automatically controlled, so as to realize the regulation of the flow rate of the protective gas.
  • the gas regulating valve 20 includes an electric regulating valve, a pneumatic regulating valve, a hydraulic regulating valve, and the like.
  • the protective gas is at least one of inert gases such as helium and argon, and nitrogen.
  • FIG. 2 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to another embodiment of the present disclosure.
  • the apparatus for co-processing liquid sludge by pyrolysis gas condensation further includes a condenser 21 , and the condenser 21 can cool the oil and water vapor discharged from the first tank 10 .
  • the condenser 21 can use direct heat exchange or indirect heat exchange to cool the oil and water vapor.
  • the direct heat exchange method includes the use of cooling water to directly spray the oil and water vapor; the indirect heat exchange method includes the use of cooling water in tubes, etc. Cool the oil and water vapor.
  • the condenser 21 is a partition-wall condenser, and the condenser 21 includes a second tank 23 , and the second tank 23 is provided with an accommodating cavity and a cooling medium cavity capable of realizing heat exchange.
  • the cooling medium flowing in the cooling medium cavity can exchange heat with the oil and water vapor in the accommodating cavity, so that the oil and water vapor in the accommodating cavity is cooled.
  • the second tank 23 further includes a cooling medium inlet and a cooling medium outlet.
  • the cooling medium inlet is communicated with the cooling medium source, and the low temperature cooling medium is transported into the cooling medium cavity.
  • the cooling medium outlet communicates with the cooling medium cavity, the cooling medium flows in the cooling medium cavity and completes heat exchange with the oil and water vapor in the accommodating cavity, and then flows out through the cooling medium outlet. After the cooling medium flowing out of the second tank body 23 is cooled, it is sent back to the cooling medium cavity for circulating flow to continuously cool and condense the oil and water vapor in the accommodating cavity.
  • a coiled tube or a plurality of connected tubes may be arranged in the second tank body 23 for the circulation of the cooling medium.
  • the cooling medium inlet, cooling medium outlet and cooling pipe may refer to conventional designs, which are not limited herein.
  • the first tank 10 includes a first exhaust port 22 disposed at the top thereof
  • the second tank 23 includes a third air inlet 24
  • the first exhaust port 22 and the third air intake The port 24 is connected, and after the oil and water vapor is discharged from the first exhaust port 22 of the first tank 10 , it enters the second tank 23 from the third air inlet 24 .
  • the cooling medium cavity is located in the middle of the second tank body 23, and the third air inlet 24 and the first liquid discharge port 27 can be located at the top and bottom of the second tank body 23, respectively, so that the oil and water vapor can pass through the third inlet port at the top.
  • the gas port 24 flows in and can all flow downward for condensation, thereby avoiding the retention of oil and water vapor at the top of the second tank 23; the first liquid discharge port 27 at the bottom enables the condensed oil-water mixture to be completely
  • the second tank body 23 is retained in the second tank 23 .
  • the condenser 21 when direct heat exchange is adopted, the condenser 21 includes a second tank 23, and the second tank 23 further includes a cooling medium inlet and a cooling medium outlet.
  • the cooling medium can be cooling water or cooling oil
  • the second tank 23 includes a third air inlet 24
  • the first exhaust port 22 is connected to the third air inlet 24
  • the oil and water vapor from the first tank 10 After the exhaust port 22 is discharged, it enters the second tank body 23 from the third air inlet port 24 .
  • the third air inlet 24 may be located at the lower part of the second tank body 23, and the cooling medium inlet may be located at the upper part of the second tank body 23, so that the cooling medium flows downward due to the action of gravity, and the oil and water vapor flows upward, so that the cooling medium can make the oil and water flow upward.
  • the vapor cools more fully.
  • the third air inlet 24 may also be located in the middle of the second tank body 23 .
  • a temperature transmitter 25 is also provided on the pipeline connecting the first exhaust port 22 and the third air inlet 24, and the liquid phase regulating valve 16 and the temperature transmitter 25 are interlocked and controlled.
  • the temperature of the oil and water vapor discharged from the first exhaust port 22 is controlled to be 100°C to 200°C.
  • the temperature transmitter 25 can convert the oil-water vapor temperature variable into a transmittable standardized output signal for measurement and control of the oil-water vapor temperature parameter.
  • the liquid phase regulating valve 16 can be instructed to reduce the flow rate of the liquid-containing sludge; when the temperature transmitter 25 shows that the temperature of the oil and water vapor is higher than 200°C, The liquid-phase regulating valve 16 can be instructed to increase the flow rate of liquid-containing sludge to realize the interlocking control of the liquid-phase regulating valve 16 and the temperature transmitter 25, so that the oil and water vapor entering the condenser can be fully utilized.
  • the condenser 21 further includes an oil-water separator 26
  • the second tank 23 includes a first liquid discharge port 27 arranged at the bottom thereof
  • the oil-water separator 26 includes a second inlet port arranged at the top thereof.
  • the liquid port 28, the first liquid discharge port 27 and the second liquid inlet port 28 communicate with each other.
  • the oil and water vapor in the second tank 23 is purified by the non-condensable gas that is not condensed after cooling, and then used as a fuel for the pyrolysis process or into a waste furnace for disposal.
  • the oil and water vapor in the second tank 23 is condensed to form an oil-water mixture
  • the temperature of the oil-water mixture is 40°C to 80°C
  • the oil-water mixture is discharged from the first liquid outlet 27 of the second tank 23
  • the oil-water separator 26 is entered from the second liquid inlet port 28 that communicates with the first liquid discharge port 27 .
  • the oil-water separator 26 separates the light oil and oil-containing wastewater in the oil-water mixture discharged from the second tank 23, recovers and reuses the separated light oil, and separates the separated oil-containing waste water.
  • the waste water is sent to the condensing system of the second tank 23 for recycling or discharged into the sewage treatment system.
  • the condenser 21 can separate non-condensable gas, light oil and water, so as to recover the light oil and non-condensable gas in the oil and water vapor to the maximum extent, so as to improve the oil recovery rate.
  • the device for co-processing liquid-containing sludge by pyrolysis gas condensation further includes an oil separator 29, and the first tank body 10 further includes a second liquid discharge port 30 disposed at the bottom of the oil separator. 29 includes a third liquid inlet 31, and the second liquid outlet 30 communicates with the third liquid inlet 31.
  • the heavy oil condensed in the first tank body 10 can flow down to the second liquid discharge port 30 at the bottom for discharge.
  • the heated heavy oil and solid phase in the liquid sludge are mixed with the heavy oil condensed from the pyrolysis gas to form a solid oil phase and enter the oil separator 29 .
  • the solid-containing oil phase is subjected to sedimentation separation, and the separated heavy oil can be collected in an oil storage tank for further utilization; the separated oil-containing solid phase can be subjected to advanced treatment to prevent environmental pollution.
  • first exhaust port 22 and the second liquid drain port 30 are located at the top and bottom of the first tank 10 , respectively, so that the rising oil and water vapor and the downward flowing heavy oil can completely leave the first tank 10 , to avoid staying in the first tank 10, so as to maximize the recovery rate of oil resources.
  • the surface of the pipeline in contact with the outside world is covered with a thermal insulation layer, so that the temperature of the medium circulating in the pipeline is basically maintained. constant.
  • the device for co-processing liquid-containing sludge with pyrolysis gas condensation provided in the embodiments of the present disclosure can be realized only by the pyrolysis gas and liquid-containing sludge that need to be recycled without the addition of an external heat source, so that the energy and The resources are maximized, and the harmless treatment of liquid sludge and pyrolysis gas is achieved, and the petroleum resources in pyrolysis gas and liquid sludge are recovered to realize the purpose of resource reuse.
  • the device for co-processing liquid-containing sludge by pyrolysis gas condensation can also realize automatic control and modular design, with small footprint, convenient installation and movement, and can be processed nearby in polluted areas to reduce the transportation cost of liquid-containing sludge.
  • FIG. 3 is a flowchart of a pyrolysis gas condensation co-processing liquid-containing sludge according to an embodiment of the disclosure. As shown in Figure 3, the method includes the following steps.
  • the temperature of the pyrolysis gas can usually reach 250°C to 550°C. If cooling water, cooling oil, etc. are specially used to condense the high temperature pyrolysis gas, the heat of the high temperature pyrolysis gas will not be fully utilized, and the cooling water will not be fully utilized. Or the consumption of cooling oil is also very large, resulting in a lot of waste of resources. The liquid-containing sludge with high liquid content needs to be heated to recover the oil resources in it, and at the same time to avoid environmental pollution.
  • the high-temperature pyrolysis gas is used to heat the low-temperature liquid-containing sludge, and the low-temperature liquid-containing sludge is
  • the high temperature pyrolysis gas is condensed, which can realize the synergistic treatment of liquid sludge by the pyrolysis gas condensation, so as to maximize the utilization of resources and avoid environmental pollution.
  • the high-temperature pyrolysis gas can be condensed, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed; the liquid-containing sludge is heated to make the liquid-containing sludge
  • the water phase and at least part of the oil phase are evaporated, so that more oil resources can be recovered without increasing energy consumption, and the separation of oil and water can be achieved without the use of any chemicals, and the The oil resources in the liquid sludge are recovered to obtain high-quality oil resources.
  • the liquid-containing sludge is a fluid sludge
  • the total mass percentage of water and oil in the liquid-containing sludge is 70% to 95%.
  • the mass percentage of water and oil in the liquid sludge is 70%, 75%, 80%, 85%, 90% or 95%, which can ensure that the liquid sludge flows well in the transportation pipeline , it can also ensure a good condensation of the pyrolysis gas.
  • pyrolysis gas is produced by thermal desorption of oily waste.
  • the process of thermal desorption is the evaporation and pyrolysis of organic pollutants in the oily waste under the condition of high temperature and anaerobic, and finally the oil and water in the oily waste are completely separated from the solid phase, and the oil resources are completely separated. It is recycled to realize the harmless treatment and resource utilization of oily waste.
  • thermal desorption treatment can be performed in one or more pyrolysis furnaces, and the temperature of thermal desorption treatment is controlled at 250°C to 550°C, and the pyrolysis time is controlled at 0.4h to 3.2h.
  • the degassing temperature is 250°C to 550°C.
  • the temperature of the pyrolysis gas is 250°C, 300°C, 350°C, 400°C, 450°C, 500°C or 550°C.
  • the heavy oil components in the pyrolysis gas are condensed into a liquid phase, and the stability of the liquid sludge is destroyed under the heating effect of the pyrolysis gas, and the emulsification is reduced.
  • the oil component is heated by the pyrolysis gas to form water vapor and oil vapor.
  • the uncondensed gas phase in the pyrolysis gas and the oil vapor and water vapor evaporated from the liquid sludge are mixed to form oil and water vapor.
  • contacting the liquid-containing sludge with the pyrolysis gas for heat exchange includes: transporting the liquid-containing sludge to the liquid inlet of the tank body, transporting the pyrolysis gas to the air inlet of the tank body, and the liquid-containing sludge and the pyrolysis gas are contact in the tank for heat exchange.
  • FIG. 4 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 4 , the method includes the following steps.
  • the shielding gas can prevent the gas volatilized from the liquid sludge at high temperature or the pyrolysis gas from being oxidized by the oxygen remaining in the tank or the oxygen brought in during the transport of the liquid sludge.
  • the contact area of the liquid sludge and the pyrolysis gas can be made larger, so that the heat exchange between the liquid sludge and the pyrolysis gas can be increased. more fully.
  • the protective gas is at least one of inert gases such as helium and argon, and nitrogen.
  • FIG. 5 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 5 , the method includes the following steps.
  • a booster pump and a liquid-phase regulating valve is used to adjust the flow rate of the liquid-containing sludge.
  • the booster pump can be arranged on the pipeline for conveying the liquid-containing sludge, and the liquid phase regulating valve can be arranged between the booster pump and the liquid inlet.
  • a booster pump can be used to provide power for the flow of the liquid sludge, that is, to apply pressure to the liquid sludge to speed up the transmission speed of the liquid sludge to adjust the liquid sludge
  • the flow rate of the sludge, and the liquid-phase control valve is used to control the opening of the valve to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of liquid-containing sludge is fully contacted with the pyrolysis gas.
  • a sprayer can also be arranged in the tank, the sprayer is connected with the liquid inlet, and the liquid-containing sludge can be sprayed to the pyrolysis gas through the sprayer, so that the liquid-containing sludge and the pyrolysis gas can be contacted for heat exchange.
  • FIG. 6 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 6 , the method includes the following steps.
  • S32 transport the liquid-containing sludge to the liquid inlet of the tank body and to the sprayer connected with the liquid inlet, and transport the pyrolysis gas to the gas inlet of the tank body;
  • S33 Spray the liquid-containing sludge to the pyrolysis gas through a sprayer, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange, so that at least part of the oil phase in the pyrolysis gas is condensed, and at least part of the liquid-containing sludge is condensed.
  • the water phase and at least a portion of the oil phase are evaporated to obtain oil water vapor and a solids-containing oil phase.
  • the tank body further includes an exhaust port for discharging oil and water vapor
  • a temperature transmitter is arranged in the conveying channel for discharging oil and water vapor from the exhaust port
  • the method further includes: adjusting the temperature transmitter and the liquid phase Valve interlock control, the temperature of oil and water vapor is controlled at 100 °C ⁇ 200 °C.
  • FIG. 7 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 7 , the method includes the following steps.
  • S42 transport liquid-containing sludge and pyrolysis gas, and adjust the flow rate of liquid-containing sludge;
  • a booster pump can be used to provide power for the flow of the liquid sludge, that is, to apply pressure to the liquid sludge to speed up the transmission speed of the liquid sludge to adjust the liquid sludge
  • the flow rate of the sludge, and the liquid-phase control valve is used to control the opening of the valve to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of liquid-containing sludge is fully contacted with the pyrolysis gas.
  • the temperature transmitter can convert the oil-water vapor temperature variable into a transmittable standardized output signal for measurement and control of the oil-water vapor temperature parameter.
  • the liquid-phase regulating valve can be instructed to reduce the flow rate of liquid-containing sludge; when the temperature transmitter shows that the temperature of oil and water vapor is higher than 200°C, it can indicate the liquid
  • the phase regulating valve is used to increase the flow rate of liquid sludge, so as to realize the interlocking control of the liquid phase regulating valve and the temperature transmitter, so that the oil and water vapor entering the condenser can be fully utilized.
  • FIG. 8 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 8 , the method includes the following steps.
  • S54 oil-water mixture is separated from oil and water to obtain light oil and oily waste water, and non-condensable gas is collected;
  • S55 Carry out sedimentation separation of the solid-containing oil phase to obtain heavy oil and oil-containing solid phase.
  • the method for co-processing liquid-containing sludge by pyrolysis gas condensation includes using a condenser to condense oil and water vapor, and the condenser It includes a second tank body and an oil-water separator, and transports the oil-water vapor to the second tank body, and cools the oil-water vapor to 40°C ⁇ 80°C in the second tank body to obtain the oil-water mixture and non-condensable gas; the oil-water mixture is transported to the oil-water separator to obtain light oil and oily waste water; meanwhile, the non-condensable gas is collected.
  • cooling the oil and water vapor in the second tank includes using direct heat exchange or indirect heat exchange to cool the oil and water vapor
  • the direct heat exchange method includes using oil or water to directly spray the oil and water vapor
  • indirect heat exchange The method includes cooling the oil and water vapor by using cooling water tubes, etc.
  • the oil-water separator separates the light oil and oil-containing waste water in the oil-water mixture discharged from the second tank, recovers and reuses the separated light oil, and separates the separated oil-containing waste water.
  • the waste water is sent to the condensing system of the second tank for recycling or discharged into the sewage treatment system.
  • the condenser can separate non-condensable gas, light oil and water, so as to recover the oil quality in the oil and water vapor to the greatest extent, so as to improve the recovery rate of oil resources.
  • the method for co-processing liquid-containing sludge by pyrolysis gas condensation also includes using an oil separator to carry out sedimentation separation of heavy oil and oil-containing solid phase, and the separated heavy oil can be collected in an oil storage tank for further utilization; Oil-containing solid phase for advanced treatment.
  • FIG. 9 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure.
  • the method for co-processing liquid-containing sludge with pyrolysis gas condensation shown in FIG. 9 is completed in the device for co-processing liquid-containing sludge with pyrolysis gas condensation shown in FIG. 2 .
  • the method includes the following steps.
  • S63 use a booster pump to apply pressure to the liquid-containing sludge, use a liquid-phase regulating valve to adjust the flow rate of the liquid-containing sludge, and transport the liquid-containing sludge to the first liquid inlet of the first tank;
  • S64 Input the protective gas from the second air inlet, and transmit the protective gas between the shower and the first liquid inlet;
  • S65 Mix the liquid-containing sludge and the protective gas, and deliver the mixed liquid-containing sludge and the protective gas to the sprinkler;
  • S66 Use a sprayer to spray the mixture of liquid-containing sludge and protective gas to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and the liquid-containing sludge is At least part of the water phase and at least part of the oil phase are evaporated to obtain oil water vapor and a solids-containing oil phase.
  • the method for co-processing liquid-containing sludge by condensation of pyrolysis gas further includes: spraying the pyrolysis gas with liquid-containing sludge by using a sprayer 17 located in the first tank body 10, the sprayer 17 and the first inlet
  • the liquid ports 11 communicate with each other, the first liquid inlet 11 and the sprayer 17 are located at the upper part of the first tank body 10 , and the first air inlet 12 is located at the lower part of the first tank body 10 .
  • the first tank body 10 further includes a second air inlet 19 at the top of the tank.
  • the second air inlet 19 communicates between the shower 17 and the first liquid inlet 11, and the second air inlet 19
  • the incoming shielding gas and liquid-containing sludge are mixed and sent to the sprayer 17 .
  • the second air inlet 19 is located at the top of the first tank 10 , which can facilitate the communication between the second air inlet 19 and the sprayer 17 and the first liquid inlet 11 , and can reduce the amount of water in the first tank 10 .
  • the length of the pipeline at the same time, is also conducive to the downward flow of the shielding gas to directly mix with the liquid-containing mud.
  • the shielding gas is transmitted through the third pipeline 18 extending and communicating with the second air inlet 19, and a gas regulating valve 20 is also provided on the third pipeline 18, and the gas regulating valve 20 can be used to control the flow rate of the shielding gas Make adjustments.
  • the opening degree of the gas regulating valve 20 can be automatically controlled, so as to realize the regulation of the flow rate of the protective gas.
  • FIG. 10 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid sludge provided by another embodiment of the present disclosure.
  • the method for co-processing liquid sludge with pyrolysis gas condensation shown in FIG. 10 is completed in the device for co-processing liquid sludge with pyrolysis gas condensation as shown in FIG. 2 .
  • the method includes the following steps.
  • S73 use a booster pump to apply pressure to the liquid-containing sludge, use a liquid-phase regulating valve to adjust the flow of the liquid-containing sludge, and transport the liquid-containing sludge to the first liquid inlet of the first tank;
  • S74 Input the protective gas from the second air inlet, transmit the protective gas between the sprayer and the first liquid inlet, mix the liquid-containing sludge and the protective gas, and deliver the mixed liquid-containing sludge and the protective gas to the sprinkler;
  • S75 Use a sprayer to spray the mixture of liquid-containing sludge and protective gas to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and the liquid-containing sludge is At least part of the water phase and at least part of the oil phase are evaporated to obtain oil water vapor and a solid-containing oil phase;
  • S77 Transfer the oil and water vapor from the first exhaust port to the third air inlet to enter the second tank, cool the oil and water vapor to 40°C to 80°C to obtain an oil-water mixture and a non-condensable gas, and perform a Collect and deliver the oil-water mixture to the oil-water separator included in the condenser;
  • the apparatus used for the co-processing of liquid-containing sludge by pyrolysis gas condensation further includes a condenser 21, and the first tank 10 further includes a first exhaust port at the top thereof 22, the oil and water vapor is discharged from the first exhaust port 22 to the condenser 21;
  • the condenser 21 includes a second tank 23, the second tank 23 includes a third air inlet 24, the first exhaust port 22 and the third inlet
  • the air port 24 is connected; through the interlocking control of the temperature transmitter 25 and the liquid phase regulating valve 16 between the first exhaust port 22 and the third air inlet 24, the temperature of the oil and water vapor is controlled at 100 °C ⁇ 200 °C °C.
  • the method for co-processing liquid-containing sludge by pyrolysis gas condensation further includes: transporting oil-water vapor to the second tank 23, and cooling the oil-water vapor to 40°C to 80°C in the second tank 23 to obtain an oil-water mixture and non-condensable gas; the oil-water mixture is sent to the oil-water separator 26 included in the condenser 21 to obtain light oil and oily wastewater; meanwhile, the non-condensable gas is collected.
  • cooling the oil and water vapor in the second tank 23 includes using direct heat exchange or indirect heat exchange to cool the oil and water vapor
  • the direct heat exchange method includes using oil or water to directly spray the oil and water vapor
  • indirect heat exchange The heat method includes cooling the oil and water vapor by using cooling water tubes and the like.
  • the adopted condenser 21 is a partition wall type condenser, and the partition wall type condenser 21 includes a second tank body 23, and the second tank body 23 is provided with a accommodating cavity capable of heat exchange and cooling medium cavity.
  • the cooling medium flowing in the cooling medium cavity can exchange heat with the gas in the accommodating cavity, so that the oil and water vapor in the accommodating cavity is cooled.
  • the second tank 23 further includes a cooling medium inlet and a cooling medium outlet.
  • the cooling medium inlet is communicated with the cooling medium source, and the low temperature cooling medium is transported into the cooling medium cavity.
  • the cooling medium outlet communicates with the cooling medium cavity, the cooling medium flows in the cooling medium cavity and completes heat exchange with the oil and water vapor in the accommodating cavity, and then flows out through the cooling medium outlet. After the cooling medium flowing out of the second tank body 23 is cooled down, it is sent back to the cooling medium cavity for circulating flow, and continuously cooling and condensing the oil and water vapor in the accommodating cavity.
  • the first tank body 10 includes a first exhaust port 22 disposed at the top thereof
  • the second tank body 23 includes a third air inlet port 24, the first exhaust port 22 is connected to the third air inlet port 24, and the oil and water vapor After being discharged from the first exhaust port 22 of the first tank 10 , it enters the second tank 23 from the third air inlet 24 .
  • the cooling medium cavity is located in the middle of the second tank body 23, and the third air inlet 24 and the first liquid discharge port 27 can be located at the top and bottom of the second tank body 23, respectively, so that the oil and water vapor can pass through the third inlet port at the top.
  • the gas port 24 flows in and can all flow downward for condensation to prevent the oil and water vapor from staying at the top of the second tank 23; Retained in the secondary tank 23 .
  • the condenser 21 when direct heat exchange is adopted, the condenser 21 includes a second tank 23, and the second tank 23 further includes a cooling medium inlet and a cooling medium outlet.
  • the cooling medium can be water or oil
  • the second tank 23 includes a third air inlet 24
  • the first exhaust port 22 is connected to the third air inlet 24
  • the oil and water vapor are discharged from the first exhaust of the first tank 10 .
  • the port 22 After the port 22 is discharged, it enters the second tank body 23 from the third air inlet 24 .
  • the third air inlet 24 may be located at the lower part of the second tank body 23, and the cooling medium inlet may be located at the upper part of the second tank body 23, so that the cooling medium flows downward due to the action of gravity, and the oil and water vapor flows upward, so that the cooling medium can make the oil and water flow upward.
  • the vapor cools more fully.
  • the oil-water separator 26 separates the light oil and oil-containing wastewater in the oil-water mixture discharged from the second tank 23, and recovers and reuses the separated light oil.
  • the oily wastewater is transported to the condensing system of the second tank 23 for recycling or discharged into the sewage treatment system.
  • the condenser 21 can separate non-condensable gas, light oil and water, so as to recover the crude oil in the oil and water vapor to the greatest extent, so as to improve the recovery rate of oil resources.
  • the method for co-processing liquid-containing sludge by pyrolysis gas condensation further includes: discharging the solid-containing oil phase from the second liquid discharge port 30 located at the bottom of the first tank 10, and conveying the solid-containing oil phase to the oil separator 29 to remove the solid-containing oil phase. Settling separates the heavy oil from the oily solid phase.
  • the oil separator 29 includes a third liquid inlet 31 , and the second liquid outlet 30 communicates with the third liquid inlet 31 .
  • the solid-containing oil phase formed by mixing the heated heavy oil and solid phase in the liquid sludge with the heavy oil condensed from the pyrolysis gas can flow down to the second liquid discharge port 30 at the bottom for discharge to enter the oil separator 29 .
  • the solid-containing oil phase is subjected to sedimentation separation, and the separated heavy oil can be collected in an oil storage tank for further utilization; the separated oil-containing solid phase is subjected to advanced treatment.
  • first exhaust port 22 and the second liquid drain port 30 are located at the top and bottom of the first tank 10, respectively, so that the rising oil and water vapor and the downstream heavy oil can completely leave the first tank 10, avoiding It stays in the first tank body 10 .
  • the method for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, adopts high-temperature pyrolysis gas to contact liquid-containing sludge for heat exchange, so as to realize the condensation of liquid-containing sludge on high-temperature pyrolysis gas,
  • the high-temperature pyrolysis gas heats the liquid-containing sludge, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed, and at least part of the oil phase in the liquid-containing sludge is volatilized, saving resources.
  • liquid-containing sludge realizes the separation of oil and water without using any chemicals and without increasing additional energy consumption, and recovering more oil resources.
  • the protective gas and liquid-containing sludge form a mixture and then are transported to the sprayer, so that the liquid-containing sludge and pyrolysis gas can be sprayed during spraying.
  • the contact area is larger, so that the heat exchange between the liquid sludge and the pyrolysis gas is more sufficient.
  • the first liquid inlet is closer to the top of the first tank than the first air inlet, so that the liquid-containing sludge is Under the action of gravity, it flows away from the top, and the pyrolysis gas flows in the direction close to the top, so that the surface of the contact between the pyrolysis gas and the liquid sludge is more, so that the contact between the liquid sludge and the pyrolysis gas is more sufficient, and the heat The exchange process is also more complete.
  • the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the interlocking control of the liquid-phase regulating valve and the temperature transmitter, and the temperature control of the oil and water vapor discharged from the first exhaust port At 100°C to 200°C, the oil and water vapor can be fully condensed after entering the condenser, so that the oil and water vapor entering the condenser can be fully utilized.

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Abstract

An apparatus and method for synergistic treatment of liquid-containing oil sludge by pyrolysis gas condensation. The method for synergistic treatment of liquid-containing oil sludge by pyrolysis gas condensation comprises: providing liquid-containing oil sludge and pyrolysis gas; and contacting the liquid-containing oil sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and evaporating at least part of the water phase and at least part of the oil phase in the liquid-containing oil sludge to obtain oil-water vapor and a solid-containing oil phase. The present method can achieve the separation of oil and water without using any chemicals and without increasing additional energy consumption, thereby recovering more resources.

Description

热解气冷凝协同处理含液油泥的装置和方法Device and method for co-processing liquid-containing sludge by pyrolysis gas condensation
本申请要求于2020年12月31日递交的中国专利申请第202011621030.6号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。This application claims the priority of Chinese Patent Application No. 202011621030.6 filed on December 31, 2020. The contents disclosed in the above Chinese patent application are hereby cited in their entirety as a part of this application.
技术领域technical field
本公开的实施例涉及一种热解气冷凝协同处理含液油泥的装置和方法。Embodiments of the present disclosure relate to a device and method for co-processing liquid sludge with pyrolysis gas condensation.
背景技术Background technique
热脱附技术是利用热源对含油废弃物进行加热，在绝氧的条件下，含油废弃物中的有机物和水发生蒸发和热解形成热解气，使有机物和水与固相实现分离，并通过冷凝对热解气中的石油资源加以回收，实现含油废弃物的无害化处理和资源化利用。Thermal desorption technology uses a heat source to heat oily wastes. Under anaerobic conditions, the organic matter and water in the oily wastes are evaporated and pyrolyzed to form pyrolysis gas, so that the organic matter and water are separated from the solid phase. The oil resources in the pyrolysis gas are recovered by condensation, so as to realize the harmless treatment and resource utilization of oily wastes.
含油污泥是油气田开发、炼制、集输和储运过程中产生的主要污染物之一。含油污泥成分复杂，主要由水、黏土颗粒、各种油类、沥青质、细菌质及有毒有害难降解有机物质等组成，其对水源和土壤具有严重危害且会影响到生态环境和人类的健康。因此，含油污泥必须进行处理。Oily sludge is one of the main pollutants generated in the process of oil and gas field development, refining, gathering and transportation. Oily sludge is complex in composition, mainly composed of water, clay particles, various oils, asphaltenes, bacterial substances and toxic and harmful refractory organic substances, etc. healthy. Therefore, oily sludge must be treated.
发明内容SUMMARY OF THE INVENTION
本公开至少一实施例提供一种热解气冷凝协同处理含液油泥的方法，该方法包括：提供含液油泥和热解气；将所述含液油泥与所述热解气接触进行热交换以使所述热解气中的至少部分油相冷凝，所述含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。At least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, the method comprising: providing liquid-containing sludge and pyrolysis gas; contacting the liquid-containing sludge and the pyrolysis gas to perform heat exchange At least part of the oil phase in the pyrolysis gas is condensed, and at least part of the water phase and at least part of the oil phase in the liquid-containing sludge are evaporated to obtain oil-water vapor and solid-containing oil phase.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法中，在将所述含液油泥与所述热解气接触之前，在所述含液油泥中混入保护气体。For example, in the method for co-processing liquid-containing sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, before contacting the liquid-containing sludge with the pyrolysis gas, a protective gas is mixed into the liquid-containing sludge .
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法中，调节所述含液油泥的流量，以使得到的所述油水蒸气的温度在100℃～200℃的范围内。For example, in the method for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the flow rate of the liquid-containing sludge is adjusted so that the temperature of the obtained oil and water vapor is between 100°C and 200°C. within the range.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的 方法中，将所述含液油泥与所述热解气接触进行热交换包括：将所述含液油泥输送至罐体的进液口，将所述热解气输送至所述罐体的进气口，所述含液油泥与所述热解气在所述罐体中接触以进行热交换。For example, in the method for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, contacting the liquid-containing sludge with the pyrolysis gas to perform heat exchange includes: transporting the liquid-containing sludge to a The liquid inlet of the tank body transports the pyrolysis gas to the air inlet of the tank body, and the liquid-containing sludge and the pyrolysis gas are contacted in the tank body for heat exchange.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法中，所述罐体内设置有喷淋器，所述喷淋器与所述进液口连通，通过所述喷淋器向所述热解气喷淋所述含液油泥，以使所述含液油泥与所述热解气接触进行热交换。For example, in the method for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, a sprayer is arranged in the tank, the sprayer communicates with the liquid inlet, and the sprayer is connected to the liquid inlet through the The sprayer sprays the liquid-containing sludge to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法中，在将所述含液油泥输送至所述进液口的过程中，采用增压泵和液相调节阀中的至少之一调节所述含液油泥的流量。For example, in the method for co-processing liquid-containing sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, in the process of transporting the liquid-containing sludge to the liquid inlet, a booster pump and liquid phase adjustment are used. At least one of the valves regulates the flow of the liquid sludge.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法中，所述罐体还包括用于排出所述油水蒸气的排气口，在从所述排气口排出所述油水蒸气的输送通道中设置有温度变送器，所述方法还包括：通过所述温度变送器和所述液相调节阀联锁控制，将所述油水蒸气的温度控制在100℃～200℃。For example, in the method for co-processing liquid-containing sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the tank body further includes an exhaust port for discharging the oil and water vapor, and the tank body further includes an exhaust port for exhausting the oil and water vapor. A temperature transmitter is arranged in the conveying channel of the oil and water vapor, and the method further includes: controlling the temperature of the oil and water vapor at 100° C. through the interlocking control of the temperature transmitter and the liquid phase regulating valve ~200°C.
例如，本公开至少一实施例提供的一种热解气冷凝协同处理含液油泥的方法，还包括：将所述油水蒸气进行冷凝处理以得到油水混合物和不凝气体；For example, at least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, further comprising: condensing the oil-water vapor to obtain an oil-water mixture and a non-condensable gas;
将所述油水混合物进行油水分离以得到轻质油和含油废水；以及将所述不凝气体进行收集。The oil-water mixture is subjected to oil-water separation to obtain light oil and oily wastewater; and the non-condensable gas is collected.
例如，本公开至少一实施例提供的一种热解气冷凝协同处理含液油泥的方法，还包括：将所述含固油相进行沉降分离以得到重质油和含油固相。For example, at least one embodiment of the present disclosure provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation, further comprising: performing sedimentation separation on the solid-containing oil phase to obtain heavy oil and oil-containing solid phase.
本公开至少一实施例还提供一种热解气冷凝协同处理含液油泥的装置，包括：第一罐体，包括第一进液口和第一进气口；第一管路，与含液油泥源连通并延伸至所述第一进液口；第二管路，与热解气源连通并延伸至所述第一进气口；其中，所述第一管路配置为将从所述含液油泥源得到的含液油泥传送至所述第一进液口，所述第二管路配置为将从所述热解气源得到的热解气传送至所述第一进气口，所述含液油泥和所述热解气在所述第一罐体中接触以进行热交换。At least one embodiment of the present disclosure also provides a device for co-processing liquid-containing sludge by pyrolysis gas condensation, including: a first tank body, including a first liquid inlet and a first gas inlet; a first pipeline, connected with the liquid-containing sludge The sludge source communicates with and extends to the first liquid inlet; a second pipeline communicates with the pyrolysis gas source and extends to the first inlet; wherein the first pipeline is configured to The liquid-containing sludge obtained from the liquid-containing sludge source is delivered to the first liquid inlet, and the second pipeline is configured to deliver the pyrolysis gas obtained from the pyrolysis gas source to the first inlet, The liquid-containing sludge and the pyrolysis gas are contacted in the first tank for heat exchange.
例如，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，还包括：设置在所述第一管路上的增压泵和设置在所述增压泵和所述 第一进液口之间的液相调节阀。For example, the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes: a booster pump arranged on the first pipeline, and a booster pump arranged on the booster pump and the first pipeline. Liquid phase regulating valve between liquid inlets.
例如，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，还包括设置在所述第一罐体中的喷淋器，其中，所述喷淋器与所述第一进液口相连通，所述第一进液口和所述喷淋器在所述第一罐体的上部，所述第一进气口在所述第一罐体的下部。For example, the device for co-processing liquid sludge with pyrolysis gas condensation provided by at least one embodiment of the present disclosure further includes a sprayer disposed in the first tank, wherein the sprayer and the first tank The liquid inlet is connected, the first liquid inlet and the sprayer are located at the upper part of the first tank body, and the first air inlet is located at the lower part of the first tank body.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置中，所述喷淋器包括多个喷淋头，所述多个喷淋头排列成一排或者多排。For example, in the apparatus for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the shower includes a plurality of shower heads, and the plurality of shower heads are arranged in one or more rows.
例如，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，还包括与保护气体源连通的第三管路，其中，所述第一罐体还包括位于其顶部的第二进气口，所述第三管路延伸至所述第二进气口。For example, the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes a third pipeline communicated with the protective gas source, wherein the first tank further includes a first tank located at the top thereof. Two air inlets, the third pipeline extends to the second air inlet.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置中，所述第二进气口连通至所述喷淋器与所述第一进液口之间，使得所述保护气体和所述含液油泥混合后被输送至所述喷淋器。For example, in the apparatus for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the second air inlet is communicated between the shower and the first liquid inlet, so that The protective gas and the liquid-containing sludge are mixed and sent to the sprayer.
例如，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，还包括冷凝器，其中，所述第一罐体包括设置在其顶部的第一排气口，所述冷凝器包括第二罐体，所述第二罐体包括第三进气口，所述第一排气口与所述第三进气口连接。For example, the apparatus for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes a condenser, wherein the first tank body includes a first exhaust port disposed at the top thereof, and the condensation The device includes a second tank, the second tank includes a third air inlet, and the first air outlet is connected to the third air inlet.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置中，在所述第一排气口与所述第三进气口连接的管路上设置有温度变送器，所述液相调节阀和所述温度变送器联锁控制，将从所述第一排气口排出的油水蒸气的温度控制在100℃-200℃。For example, in the device for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, a temperature transmitter is provided on the pipeline connecting the first exhaust port and the third intake port , the liquid phase regulating valve and the temperature transmitter are interlocked and controlled, and the temperature of the oil and water vapor discharged from the first exhaust port is controlled at 100°C-200°C.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置中，所述冷凝器还包括油水分离器，所述第二罐体包括设置在其底部的第一排液口，所述油水分离器包括设置在其顶部的第二进液口，所述第一排液口和所述第二进液口连通。For example, in the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the condenser further includes an oil-water separator, and the second tank includes a first drain disposed at the bottom of the second tank. The oil-water separator includes a second liquid inlet arranged at the top of the oil-water separator, and the first liquid discharge port communicates with the second liquid inlet.
例如，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，还包括油分离器，其中，所述第一罐体还包括设置在其底部的第二排液口，所述油分离器包括第三进液口，所述第二排液口和所述第三进液口连通。For example, the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure further includes an oil separator, wherein the first tank body further includes a second liquid discharge port disposed at the bottom thereof, so The oil separator includes a third liquid inlet, and the second liquid outlet communicates with the third liquid inlet.
附图说明Description of drawings
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limit the present disclosure. .
图1为本公开一实施例提供的一种热解气冷凝协同处理含液油泥的装置的结构框图；1 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to an embodiment of the present disclosure;
图2为本公开再一实施例提供的一种热解气冷凝协同处理含液油泥的装置的结构框图；FIG. 2 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to yet another embodiment of the present disclosure;
图3为本公开一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；3 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by an embodiment of the present disclosure;
图4为本公开再一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；4 is a flow chart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by yet another embodiment of the present disclosure;
图5为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；5 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure;
图6为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；6 is a flowchart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure;
图7为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；FIG. 7 is a flow chart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure;
图8为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；8 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure;
图9为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图；以及FIG. 9 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by yet another embodiment of the present disclosure; and
图10为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图。FIG. 10 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure.
具体实施方式Detailed ways
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“顶”、“底”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in this disclosure, "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Top", "bottom", "top", "bottom", etc. are only used to indicate relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
目前，多采用直接喷淋或间接冷却的方式对热脱附产生的高温热解气进行冷凝。在采用间接冷却的方式时，冷却介质多为***内的循环水或者循环油，但是，高温热解气冷凝释放的热量无法有效利用，从而造成了资源浪费。例如，在采用直接喷淋的方式时，多采用沉降分离水对高温热解气进行冷凝，同时，高温热解气也将循环的沉降分离水加热，为了使得沉降分离水进一步循环使用，需要采用换热设备及外部冷却水将沉降分离水降温，从而增加了额外的能耗。因此，亟待优化高温热解气冷凝工艺，实现高温热解气余热的利用。At present, direct spraying or indirect cooling are mostly used to condense the high-temperature pyrolysis gas generated by thermal desorption. When the indirect cooling method is adopted, the cooling medium is mostly circulating water or circulating oil in the system, but the heat released by the condensation of the high-temperature pyrolysis gas cannot be effectively used, resulting in a waste of resources. For example, when direct spraying is used, sedimentation separation water is often used to condense the high-temperature pyrolysis gas. At the same time, the high-temperature pyrolysis gas also heats the circulating sedimentation separation water. In order to make the sedimentation separation water further recycled, it is necessary to use Heat exchange equipment and external cooling water cool down the sedimentation separation water, thereby increasing additional energy consumption. Therefore, it is urgent to optimize the high-temperature pyrolysis gas condensation process to realize the utilization of the waste heat of the high-temperature pyrolysis gas.
目前，处理含液油泥的技术众多，但都会存在不同的问题，对于含液率高的含液油泥，例如，含油废水浮渣、老化油、含油乳化液等，直接采用热脱附技术的能耗高，会造成经济性差；采用焚烧的方式，不但热量利用率低对原料热值也有要求，还无法回收石油资源，且会产生粉尘污染和气体污染；由于含油废水浮渣、老化油、含油乳化液等的稳定性很强，采用常规的浓缩、脱水和化学破乳等方法也会使得脱水过程很困难，即使加入常规的药剂也不易实现油和水的有效分离，而且通过药剂处理后回收的油的质量也很差。At present, there are many technologies for treating liquid sludge, but they all have different problems. For liquid sludge with high liquid content, such as oily wastewater scum, aging oil, oily emulsion, etc., the energy of thermal desorption technology can be directly used. High consumption will result in poor economy; the incineration method not only requires low heat utilization rate but also requires the calorific value of raw materials, but also cannot recover oil resources, and will produce dust pollution and gas pollution; due to oily wastewater scum, aging oil, oily The stability of the emulsion, etc. is very strong. The conventional methods of concentration, dehydration and chemical demulsification will also make the dehydration process very difficult. Even if conventional chemicals are added, it is not easy to achieve effective separation of oil and water. The quality of the oil is also very poor.
本公开的发明人注意到，高温热解气的温度通常可以达到250℃～550℃，如果专门采用循环水、循环油或者沉降分离水等对高温热解气进行冷凝，将会造成高温热解气的热量无法得到利用，且循环水、循环油和沉降分离水的消耗量也非常大，从而造成了大量的资源浪费。本公开的发明人同时还注意到，对含液率高的含液油泥进行加热有利于对其中的油资源进行回收，因此，可以采用高温热解气对含液油泥进行加热，同时采用含液油泥对高温热解气进行冷凝，这样就实现了热解气冷凝协同处理含液油泥，以使得资源得到最 大化利用，且避免了资源浪费和环境污染。例如，可以采用高温热解气与含液油泥接触进行换热，以实现对高温热解气进行冷凝，使得高温热解气中至少部分油相冷凝；对含液油泥进行加热，使得含液油泥中的水相和至少部分油相蒸发，从而可以在不增加额外的能耗的情况下回收更多的油资源，同时在不使用任何化学药剂的情况下实现含液油泥中油和水的分离，并对含液油泥中的油资源进行回收以得到高质量的油资源。The inventors of the present disclosure have noticed that the temperature of the high-temperature pyrolysis gas can usually reach 250°C to 550°C. The heat of the gas cannot be used, and the consumption of circulating water, circulating oil and sedimentation separation water is also very large, resulting in a lot of waste of resources. The inventors of the present disclosure also noticed that heating the liquid-containing sludge with high liquid content is beneficial to the recovery of oil resources therein. Therefore, high-temperature pyrolysis gas can be used to heat the liquid-containing sludge, while the liquid-containing sludge can be heated by using high-temperature pyrolysis gas. The sludge condenses the high-temperature pyrolysis gas, thus realizing the co-processing of the liquid-containing sludge by the pyrolysis gas condensation, so as to maximize the utilization of resources and avoid resource waste and environmental pollution. For example, the high-temperature pyrolysis gas can be used for heat exchange in contact with the liquid-containing sludge, so as to condense the high-temperature pyrolysis gas, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed; and the liquid-containing sludge is heated to make the liquid-containing sludge The water phase and at least a part of the oil phase in the sludge are evaporated, so that more oil resources can be recovered without adding additional energy consumption, and the separation of oil and water in the liquid sludge can be achieved without using any chemicals, And the oil resources in the liquid sludge are recovered to obtain high-quality oil resources.
本公开至少一实施例提供一种热解气冷凝协同处理含液油泥的装置，例如，图1为本公开一实施例提供的一种热解气冷凝协同处理含液油泥的装置的结构框图，如图1所示，该热解气冷凝协同处理含液油泥的装置1包括：第一罐体10、第一管路13和第二管路14，该第一罐体10包括第一进液口11和第一进气口12。该第一管路13与含液油泥源连通并延伸至第一进液口11，该第二管路14与热解气源连通并延伸至第一进气口12，第一管路13配置为将从含液油泥源得到的含液油泥传送至第一进液口11，第二管路14配置为将从热解气源得到的热解气传送至第一进气口12，该含液油泥和热解气在第一罐体10中接触以进行热交换。At least one embodiment of the present disclosure provides an apparatus for co-processing liquid-containing sludge with pyrolysis gas condensation. For example, FIG. 1 is a structural block diagram of an apparatus for co-processing liquid-containing sludge with pyrolysis gas condensation according to an embodiment of the disclosure, As shown in FIG. 1 , the device 1 for co-processing liquid-containing sludge by pyrolysis gas condensation includes: a first tank 10 , a first pipeline 13 and a second pipeline 14 , the first tank 10 includes a first liquid inlet port 11 and first air inlet 12 . The first pipeline 13 communicates with the liquid-containing sludge source and extends to the first liquid inlet 11 , and the second pipeline 14 communicates with the pyrolysis gas source and extends to the first inlet 12 . The first pipeline 13 is configured In order to deliver the liquid-containing sludge obtained from the liquid-containing sludge source to the first liquid inlet 11, the second pipeline 14 is configured to deliver the pyrolysis gas obtained from the pyrolysis gas source to the first inlet 12, which contains The liquid sludge and the pyrolysis gas are contacted in the first tank 10 for heat exchange.
例如，该第一管路13延伸至第一进液口11是指第一管路13和第一进液口11连通，且第一管路13可以将含液油泥传输至第一进液口11。第二管路14延伸至第一进气口12是指第二管路14连通至第一进气口12，且第二管路14可以将热解气传输至第一进气口12。For example, the extension of the first pipeline 13 to the first liquid inlet 11 means that the first pipeline 13 communicates with the first liquid inlet 11, and the first pipeline 13 can transmit the liquid-containing sludge to the first liquid inlet 11. The extension of the second pipeline 14 to the first gas inlet 12 means that the second pipeline 14 is connected to the first gas inlet 12 , and the second pipeline 14 can transmit the pyrolysis gas to the first gas inlet 12 .
例如，该含液油泥为具有流动性的油泥，该含液油泥中水和油的总质量百分含量为70％～95％。例如，该含液油泥中水和油的质量百分含量为70％、75％、80％、85％、90％或者95％，这样可以保证含液油泥在第一管路13中进行很好的流动，也可以保证该含液油泥对热解气进行很好的冷凝。For example, the liquid-containing sludge is a fluid sludge, and the total mass percentage of water and oil in the liquid-containing sludge is 70% to 95%. For example, the mass percentage content of water and oil in the liquid-containing sludge is 70%, 75%, 80%, 85%, 90% or 95%, which can ensure that the liquid-containing sludge is carried out well in the first pipeline 13. It can also ensure that the liquid-containing sludge can condense the pyrolysis gas well.
例如，热解气是含油废弃物经过热脱附处理产生的。热脱附的过程是在高温绝氧的条件下含油废弃物中的有机污染物发生蒸发和热解等作用，最终将含油废弃物中的油和水从固相中彻底分离，并对石油资源加以回收，实现含油废弃物的无害化处理和资源化利用。例如，可以在一个或多个热解炉内进行热脱附处理，且将热脱附处理的温度控制在250℃～550℃，热脱附的时间控制在0.4～3.2h，最终形成的热解气的温度为250～550℃。例如，热解气的温度为250℃、300℃、350℃、400℃、450℃、500℃或者550℃。For example, pyrolysis gas is produced by thermal desorption of oily waste. The process of thermal desorption is the evaporation and pyrolysis of organic pollutants in the oily waste under the condition of high temperature and anaerobic conditions, and finally the oil and water in the oily waste are completely separated from the solid phase, and the oil resources are completely separated. It is recycled to realize the harmless treatment and resource utilization of oily waste. For example, the thermal desorption treatment can be performed in one or more pyrolysis furnaces, and the temperature of the thermal desorption treatment is controlled at 250°C to 550°C, and the thermal desorption time is controlled at 0.4 to 3.2 hours. The degassing temperature is 250-550°C. For example, the temperature of the pyrolysis gas is 250°C, 300°C, 350°C, 400°C, 450°C, 500°C or 550°C.
例如，热解气中的重质油组分冷凝为液相，在热解气的加热作用下含液 油泥的稳定性被破坏，乳化性降低，同时含液油泥中的水组分和轻质油组分被热解气加热形成水蒸气和油蒸气。通过含液油泥冷却后，热解气中未冷凝的气相和从含液油泥蒸发的油蒸气和水蒸气混合后形成油水蒸气。For example, the heavy oil components in the pyrolysis gas are condensed into a liquid phase, and the stability of the liquid sludge is destroyed under the heating effect of the pyrolysis gas, and the emulsification is reduced. The oil component is heated by the pyrolysis gas to form water vapor and oil vapor. After being cooled by the liquid sludge, the uncondensed gas phase in the pyrolysis gas and the oil vapor and water vapor evaporated from the liquid sludge are mixed to form oil and water vapor.
例如，相对于第一进气口12，第一进液口11更靠近第一罐体10的顶部。For example, the first liquid inlet 11 is closer to the top of the first tank body 10 than the first air inlet 12 .
需要说明的是，在热解气冷凝协同处理含液油泥的装置正常工作时，液体在重力作用下向第一方向流动，与第一方向相反一侧的第一罐体10的表面即为第一罐体10的顶部，与第一方向相同一侧的第一罐体10的表面即为第一罐体10的底部。It should be noted that when the device for cooperating with pyrolysis gas condensation to treat liquid-containing sludge works normally, the liquid flows in the first direction under the action of gravity, and the surface of the first tank 10 on the opposite side of the first direction is the first direction. The top of a tank 10 and the surface of the first tank 10 on the same side as the first direction is the bottom of the first tank 10 .
例如，由于含液油泥受到重力的作用，其从第一进液口11流入第一罐体10后会向下(即在第一罐体10内远离第一罐体10的顶部的方向)流动；由于热解气的分子间距大，具体表现为密度小，热解气从第一进气口12进入第一罐体10后会向上(即在第一罐体10内靠近第一罐体10的顶部的方向)流动。这样，从更靠近第一罐体10的顶部的第一进液口11输入的含液油泥受到重力作用向下流动，与从第一进气口12输入的向上流动的热解气接触的表面更多，从而使得含液油泥和热解气接触的更充分，热交换的过程也更充分。For example, due to the action of gravity, the liquid-containing sludge will flow downward (ie, in the direction away from the top of the first tank 10 in the first tank 10 ) after flowing into the first tank 10 from the first liquid inlet 11 . ; Because the molecular spacing of the pyrolysis gas is large, the specific performance is that the density is small. After the pyrolysis gas enters the first tank 10 from the first air inlet 12, it will go upward (that is, it will be close to the first tank 10 in the first tank 10). direction of the top) flow. In this way, the liquid-containing sludge input from the first liquid inlet 11 closer to the top of the first tank body 10 flows downward under the action of gravity, and the surface in contact with the upwardly flowing pyrolysis gas input from the first inlet 12 More, so that the contact between the liquid sludge and the pyrolysis gas is more sufficient, and the process of heat exchange is more sufficient.
需要说明的是，第一进气口12到第一罐体10的顶部的距离和第一进液口11到第一罐体10的顶部的距离也可以大致相等；或者，相对于第一进气口12，第一进液口11也可以更远离第一罐体10的顶部，本公开的实施例对此不作限定。It should be noted that the distance from the first air inlet 12 to the top of the first tank 10 and the distance from the first liquid inlet 11 to the top of the first tank 10 can also be approximately equal; The gas port 12 and the first liquid inlet 11 may also be further away from the top of the first tank body 10 , which is not limited in the embodiment of the present disclosure.
例如，如图1所示，该热解气冷凝协同处理含液油泥的装置1还包括设置在第一管路13上的增压泵15和设置在增压泵15和第一进液口11之间的液相调节阀16。增压泵15和液相调节阀16均可以调节含液油泥的流量。For example, as shown in FIG. 1 , the apparatus 1 for co-processing liquid sludge by pyrolysis gas condensation further includes a booster pump 15 arranged on the first pipeline 13 , a booster pump 15 arranged on the booster pump 15 and the first liquid inlet 11 . The liquid phase regulating valve 16 between them. Both the booster pump 15 and the liquid phase regulating valve 16 can adjust the flow rate of the liquid-containing sludge.
例如，增压泵15可以通过加快对含液油泥的传输速度，即为含液油泥的流动提供动力以调节含液油泥的流量。液相调节阀16可以调整含液油泥的输入量以调节含液油泥的流量，从而保证有足够量的含液油泥与热解气充分地接触。该液相调节阀16还可以与后续提及的温度变送器联锁控制油水蒸气的温度。For example, the booster pump 15 can adjust the flow rate of the liquid-containing sludge by increasing the transmission speed of the liquid-containing sludge, that is, providing power for the flow of the liquid-containing sludge. The liquid-phase regulating valve 16 can adjust the input amount of the liquid-containing sludge to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of the liquid-containing sludge is fully contacted with the pyrolysis gas. The liquid phase regulating valve 16 can also be interlocked with the temperature transmitter mentioned later to control the temperature of the oil and water vapor.
例如，根据调节部位的信号，可以自动控制该液相调节阀16阀门的开度，从而实现含液油泥流量的调节。For example, according to the signal of the adjustment part, the opening degree of the liquid phase control valve 16 can be automatically controlled, so as to realize the adjustment of the flow rate of the liquid-containing sludge.
例如，该液相调节阀16包括电动调节阀、气动调节阀和液动调节阀等。For example, the liquid phase regulating valve 16 includes an electric regulating valve, a pneumatic regulating valve, a hydraulic regulating valve, and the like.
例如，如图1所示，本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置还包括设置在第一罐体10中的喷淋器17，该喷淋器17与第一进液口11相连通，第一进液口11和喷淋器17在第一罐体10的上部，第一进气口12在第一罐体10的下部。含液油泥从第一进液口11进入后被传送到与第一进液口11相连通的喷淋器17，该喷淋器17配置为将含液油泥喷淋至通过第一进气口12输入的热解气，热解气通过喷淋器17的喷淋进行冷凝，使得含液油泥和热解气进行更充分的接触。For example, as shown in FIG. 1 , the apparatus for co-processing liquid sludge by pyrolysis gas condensation provided by at least one embodiment of the present disclosure further includes a sprayer 17 disposed in the first tank 10 , the sprayer 17 is connected to the first tank 10 . A liquid inlet 11 communicates with each other, the first liquid inlet 11 and the shower 17 are located at the upper part of the first tank body 10 , and the first air inlet 12 is located at the lower part of the first tank body 10 . After entering from the first liquid inlet 11, the liquid-containing sludge is conveyed to the sprayer 17 communicated with the first liquid inlet 11, and the sprayer 17 is configured to spray the liquid-containing sludge to the first liquid inlet. 12 The input pyrolysis gas, the pyrolysis gas is condensed through the spraying of the sprayer 17, so that the liquid-containing sludge and the pyrolysis gas are in more sufficient contact.
例如，将第一进液口11和喷淋器17设置在第一罐体10的上部，将第一进气口12设置在第一罐体10的下部，可以使得从喷淋器17喷出的含液油泥都能够接触到从第一进气口12进入的热解气，对热解气进行充分的喷淋降温，形成的油水蒸气也能够上升并快速排出。For example, arranging the first liquid inlet 11 and the shower 17 on the upper part of the first tank 10 and the first air inlet 12 on the lower part of the first tank 10 can make the spray from the shower 17 The liquid-containing sludge can be in contact with the pyrolysis gas entering from the first air inlet 12, and the pyrolysis gas is sufficiently sprayed to cool down, and the formed oil and water vapor can also rise and be quickly discharged.
例如，如图1所示，将第一罐体10沿着水平的中心线A-A’划分成第一部分101和第二部分102，第一罐体10的上部为更靠近第一罐体10的顶部的第一部分101，第一罐体10的下部为远离第一罐体10的顶部的第二部分102。For example, as shown in FIG. 1 , the first tank 10 is divided into a first part 101 and a second part 102 along the horizontal centerline AA′, and the upper part of the first tank 10 is closer to the first tank 10 The first part 101 at the top of the first tank body 10 is the second part 102 away from the top of the first tank body 10 .
例如，该喷淋器17包括多个喷淋头171，多个喷淋头171设置成一排或者多排。在如图1所示的结构中，3个喷淋头171排列成一排。例如，还可以是更多个喷淋头171排列成一排或者多排，以使得第一罐体10的第一侧壁和第二侧壁之间的区域均可以喷洒含液油泥。For example, the shower 17 includes a plurality of shower heads 171, and the plurality of shower heads 171 are arranged in one or more rows. In the structure shown in FIG. 1 , three shower heads 171 are arranged in a row. For example, more spray heads 171 may also be arranged in one or more rows, so that the area between the first side wall and the second side wall of the first tank 10 can be sprayed with liquid sludge.
需要说明的是，多个喷淋头171设置成多排，该多排可以是多个喷淋头171位于同一高度的平面且排列成多排，也可以多个喷淋头171位于不同高度的平面排列成多排。该多个喷淋头171可以沿着第一罐体10内边缘的周向设置，也可以仅设置在第一罐体10的中心，本公开的实施例对此不做限定。It should be noted that the plurality of shower heads 171 are arranged in multiple rows, and the multiple rows may be that the plurality of shower heads 171 are located on a plane at the same height and arranged in multiple rows, or the multiple shower heads 171 may be arranged at different heights. The planes are arranged in rows. The plurality of shower heads 171 may be disposed along the circumference of the inner edge of the first tank body 10 , or may only be disposed in the center of the first tank body 10 , which is not limited in the embodiment of the present disclosure.
例如，该喷淋头171包括多头雾化喷嘴、方形喷嘴、高压清洗喷嘴、空心锥喷嘴、扇形喷嘴和螺旋喷头等。For example, the shower head 171 includes a multi-head atomizing nozzle, a square nozzle, a high-pressure cleaning nozzle, a hollow cone nozzle, a fan-shaped nozzle, a spiral nozzle and the like.
例如，在一些实施例中，也可以是喷淋器17包括一个喷淋头171，该一个喷淋头为多头雾化喷嘴或者扇形喷嘴，这样也可以保证从喷淋头171喷洒的含液油泥覆盖足够大的区域，使得含液油泥和热解气进行更充分的接触，从而使得含液油泥和热解气之间的热交换过程更充分。For example, in some embodiments, the sprinkler 17 may also include a sprinkler head 171, and the sprinkler head is a multi-head atomizing nozzle or a fan-shaped nozzle, which can also ensure that the liquid-containing sludge sprayed from the sprinkler head 171 can be ensured. Cover a large enough area to make the liquid-containing sludge and the pyrolysis gas contact more fully, so that the heat exchange process between the liquid-containing sludge and the pyrolysis gas is more sufficient.
例如，如图1所示，本公开至少一实施例提供的热解气冷凝协同处理含 液油泥的装置还包括与保护气体源连通的第三管路18，第一罐体10还包括位于其顶部的第二进气口19，该第三管路18延伸至第二进气口19，第三管路18配置为将从保护气体源得到的保护气体输送至第二进气口19，保护气体可以防止在高温条件下从含液油泥中挥发出的气体或者热解气被残留在第一罐体10中的氧气或者在输送含液油泥的过程中带入的氧气氧化。For example, as shown in FIG. 1 , the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation provided by at least one embodiment of the present disclosure further includes a third pipeline 18 that communicates with the protective gas source, and the first tank 10 further includes a The second air inlet 19 at the top, the third pipeline 18 extends to the second air inlet 19, the third pipeline 18 is configured to deliver the protective gas obtained from the protective gas source to the second air inlet 19, and the protection The gas can prevent the gas volatilized from the liquid-containing sludge or the pyrolysis gas from being oxidized by the oxygen remaining in the first tank 10 or the oxygen introduced in the process of conveying the liquid-containing sludge.
例如，该第三管路18延伸至第二进气口19是指第三管路18和第二进气口19连通，且第三管路18可以将保护气体传输至第二进气口19。For example, the extension of the third pipeline 18 to the second air inlet 19 means that the third pipeline 18 communicates with the second air inlet 19 , and the third pipeline 18 can transmit the shielding gas to the second air inlet 19 .
例如，第二进气口19位于第一罐体10的顶部，可以便于第二进气口19连通至喷淋器17与第一进液口11之间，可以减少位于第一罐体10中的管路的长度，同时，也有利于保护气体向下流动以直接和含液流泥进行混合。For example, the second air inlet 19 is located at the top of the first tank body 10 , which can facilitate the communication of the second air inlet 19 between the sprayer 17 and the first liquid inlet 11 , which can reduce the amount of the second air inlet 19 in the first tank body 10 . The length of the pipeline, at the same time, is also conducive to the downward flow of the shielding gas to directly mix with the liquid-containing mud.
例如，第二进气口19连通至喷淋器17与第一进液口11之间，可以使得保护气体从第二进气口19进入后被传送到喷淋器17与第一进液口11之间，从而使得含液油泥从第一进液口11进入后和保护气体先混合，然后保护气体和含液油泥形成的混合物被输送至喷淋器17。For example, the second air inlet 19 is communicated between the shower 17 and the first liquid inlet 11 , so that the protective gas enters from the second air inlet 19 and is sent to the shower 17 and the first liquid inlet 11 , so that after entering from the first liquid inlet 11 , the liquid-containing sludge is mixed with the protective gas first, and then the mixture formed by the protective gas and the liquid-containing sludge is sent to the sprayer 17 .
例如，保护气体和含液油泥形成混合物后被输送至喷淋器17可以使得喷淋时含液油泥和热解气的接触面积更大，从而使得含液油泥和热解气的热交换更充分。For example, after the protective gas and liquid-containing sludge are formed into a mixture and sent to the sprayer 17, the contact area between the liquid-containing sludge and the pyrolysis gas can be larger during spraying, thereby making the heat exchange between the liquid-containing sludge and the pyrolysis gas more sufficient. .
例如，该热解气冷凝协同处理含液油泥的装置还包括设置在第三管路18上的气体调节阀20，该气体调节阀20配置为对保护气体的流量进行调节。例如，根据调节部位的信号，可以自动控制该气体调节阀20阀门的开度，从而实现保护气体流量的调节。For example, the apparatus for co-processing liquid-containing sludge by pyrolysis gas condensation further includes a gas regulating valve 20 disposed on the third pipeline 18, and the gas regulating valve 20 is configured to regulate the flow rate of the protective gas. For example, according to the signal of the regulating part, the opening degree of the gas regulating valve 20 can be automatically controlled, so as to realize the regulation of the flow rate of the protective gas.
例如，该气体调节阀20包括电动调节阀、气动调节阀和液动调节阀等。For example, the gas regulating valve 20 includes an electric regulating valve, a pneumatic regulating valve, a hydraulic regulating valve, and the like.
例如，保护气体为氦气、氩气等惰性气体和氮气中的至少之一。For example, the protective gas is at least one of inert gases such as helium and argon, and nitrogen.
例如，图2为本公开再一实施例提供的一种热解气冷凝协同处理含液油泥的装置的结构框图。如图2所示，该热解气冷凝协同处理含液油泥的装置还包括冷凝器21，该冷凝器21可以对从第一罐体10排出的油水蒸气进行冷却。该冷凝器21可以采用直接换热或者间接换热的方式对油水蒸气进行冷却，直接换热的方式包括采用冷却水对油水蒸气直接进行喷淋；间接换热的方式包括采用冷却水列管等对油水蒸气进行冷却。For example, FIG. 2 is a structural block diagram of a device for co-processing liquid-containing sludge with pyrolysis gas condensation according to another embodiment of the present disclosure. As shown in FIG. 2 , the apparatus for co-processing liquid sludge by pyrolysis gas condensation further includes a condenser 21 , and the condenser 21 can cool the oil and water vapor discharged from the first tank 10 . The condenser 21 can use direct heat exchange or indirect heat exchange to cool the oil and water vapor. The direct heat exchange method includes the use of cooling water to directly spray the oil and water vapor; the indirect heat exchange method includes the use of cooling water in tubes, etc. Cool the oil and water vapor.
例如，采用间接换热的方式时，该冷凝器21为间壁式冷凝器，该冷凝器21包括第二罐体23，第二罐体23中设置有能够实现热交换的容纳腔和冷 却介质腔。冷却介质腔内流动的冷却介质能够与容纳腔内的油水蒸气进行热交换，使得容纳腔内的油水蒸气冷却。For example, when the indirect heat exchange method is adopted, the condenser 21 is a partition-wall condenser, and the condenser 21 includes a second tank 23 , and the second tank 23 is provided with an accommodating cavity and a cooling medium cavity capable of realizing heat exchange. . The cooling medium flowing in the cooling medium cavity can exchange heat with the oil and water vapor in the accommodating cavity, so that the oil and water vapor in the accommodating cavity is cooled.
例如，第二罐体23还包括冷却介质入口和冷却介质出口。通过冷却介质入口与冷却介质源连通，将低温的冷却介质输送到冷却介质腔中。冷却介质出口与冷却介质腔连通，冷却介质在冷却介质腔内流动并与容纳腔内的油水蒸气完成热交换，然后通过冷却介质出口流出。从第二罐体23流出的冷却介质降温后，被送回冷却介质腔，以进行循环流动，持续地对容纳腔内的油水蒸气进行降温冷凝。For example, the second tank 23 further includes a cooling medium inlet and a cooling medium outlet. The cooling medium inlet is communicated with the cooling medium source, and the low temperature cooling medium is transported into the cooling medium cavity. The cooling medium outlet communicates with the cooling medium cavity, the cooling medium flows in the cooling medium cavity and completes heat exchange with the oil and water vapor in the accommodating cavity, and then flows out through the cooling medium outlet. After the cooling medium flowing out of the second tank body 23 is cooled, it is sent back to the cooling medium cavity for circulating flow to continuously cool and condense the oil and water vapor in the accommodating cavity.
例如，第二罐体23内可以设置蛇管、多根相连通的列管以供冷却介质流通。需要说明的是，冷却介质入口、冷却介质出口以及冷却管可以参见常规的设计，在此不作限定。For example, a coiled tube or a plurality of connected tubes may be arranged in the second tank body 23 for the circulation of the cooling medium. It should be noted that the cooling medium inlet, cooling medium outlet and cooling pipe may refer to conventional designs, which are not limited herein.
例如，如图2所示，第一罐体10包括设置在其顶部的第一排气口22，第二罐体23包括第三进气口24，第一排气口22与第三进气口24连接，油水蒸气从第一罐体10的第一排气口22排出后，从第三进气口24进入第二罐体23。For example, as shown in FIG. 2 , the first tank 10 includes a first exhaust port 22 disposed at the top thereof, the second tank 23 includes a third air inlet 24 , the first exhaust port 22 and the third air intake The port 24 is connected, and after the oil and water vapor is discharged from the first exhaust port 22 of the first tank 10 , it enters the second tank 23 from the third air inlet 24 .
例如，冷却介质腔位于第二罐体23的中部，第三进气口24和第一排液口27可以分别位于第二罐体23的顶部和底部，可以使得油水蒸气由顶部的第三进气口24流入，能够全部向下流动，进行冷凝，从而避免油水蒸气在第二罐体23的顶部滞留；位于底部的第一排液口27使冷凝出的油水混合液能够完全排出，避免在第二罐体23内滞留。For example, the cooling medium cavity is located in the middle of the second tank body 23, and the third air inlet 24 and the first liquid discharge port 27 can be located at the top and bottom of the second tank body 23, respectively, so that the oil and water vapor can pass through the third inlet port at the top. The gas port 24 flows in and can all flow downward for condensation, thereby avoiding the retention of oil and water vapor at the top of the second tank 23; the first liquid discharge port 27 at the bottom enables the condensed oil-water mixture to be completely The second tank body 23 is retained in the second tank 23 .
例如，采用直接换热的方式时，该冷凝器21包括第二罐体23，第二罐体23还包括冷却介质入口和冷却介质出口。该冷却介质可以是冷却水或者冷却油，第二罐体23包括第三进气口24，第一排气口22与第三进气口24连接，油水蒸气从第一罐体10的第一排气口22排出后，从第三进气口24进入第二罐体23。第三进气口24可以位于第二罐体23的下部，冷却介质入口可以位于第二罐体23的上部，这样由于重力作用冷却介质向下流动，油水蒸气向上流动，可以使得冷却介质将油水蒸气冷却地更充分。For example, when direct heat exchange is adopted, the condenser 21 includes a second tank 23, and the second tank 23 further includes a cooling medium inlet and a cooling medium outlet. The cooling medium can be cooling water or cooling oil, the second tank 23 includes a third air inlet 24 , the first exhaust port 22 is connected to the third air inlet 24 , and the oil and water vapor from the first tank 10 After the exhaust port 22 is discharged, it enters the second tank body 23 from the third air inlet port 24 . The third air inlet 24 may be located at the lower part of the second tank body 23, and the cooling medium inlet may be located at the upper part of the second tank body 23, so that the cooling medium flows downward due to the action of gravity, and the oil and water vapor flows upward, so that the cooling medium can make the oil and water flow upward. The vapor cools more fully.
需要说明的是，如图2所示，第三进气口24也可以位于第二罐体23的中部。It should be noted that, as shown in FIG. 2 , the third air inlet 24 may also be located in the middle of the second tank body 23 .
例如，如图2所示，在第一排气口22与第三进气口24连接的管路上还设置有温度变送器25，液相调节阀16和温度变送器25联锁控制，将从第一 排气口22排出的油水蒸气的温度控制在100℃～200℃。For example, as shown in FIG. 2 , a temperature transmitter 25 is also provided on the pipeline connecting the first exhaust port 22 and the third air inlet 24, and the liquid phase regulating valve 16 and the temperature transmitter 25 are interlocked and controlled. The temperature of the oil and water vapor discharged from the first exhaust port 22 is controlled to be 100°C to 200°C.
例如，该温度变送器25可以将油水蒸气的温度变量转换为可传送的标准化输出信号，以用于对油水蒸气温度参数的测量和控制。当温度变送器25显示油水蒸气的温度低于100℃时，可以指示液相调节阀16以减小含液油泥的流量；当温度变送器25显示油水蒸气的温度高于200℃时，可以指示液相调节阀16以加大含液油泥的流量，以实现液相调节阀16和温度变送器25的联锁控制，从而使得后续进入冷凝器的油水蒸气能够得到充分的利用。For example, the temperature transmitter 25 can convert the oil-water vapor temperature variable into a transmittable standardized output signal for measurement and control of the oil-water vapor temperature parameter. When the temperature transmitter 25 shows that the temperature of the oil and water vapor is lower than 100°C, the liquid phase regulating valve 16 can be instructed to reduce the flow rate of the liquid-containing sludge; when the temperature transmitter 25 shows that the temperature of the oil and water vapor is higher than 200°C, The liquid-phase regulating valve 16 can be instructed to increase the flow rate of liquid-containing sludge to realize the interlocking control of the liquid-phase regulating valve 16 and the temperature transmitter 25, so that the oil and water vapor entering the condenser can be fully utilized.
例如，如图2所示，该冷凝器21还包括油水分离器26，第二罐体23包括设置在其底部的第一排液口27，油水分离器26包括设置在其顶部的第二进液口28，第一排液口27和第二进液口28连通。For example, as shown in FIG. 2 , the condenser 21 further includes an oil-water separator 26 , the second tank 23 includes a first liquid discharge port 27 arranged at the bottom thereof, and the oil-water separator 26 includes a second inlet port arranged at the top thereof. The liquid port 28, the first liquid discharge port 27 and the second liquid inlet port 28 communicate with each other.
需要说明的是，上述提及的“顶部”、“底部”可以参见前述类似定义，在此不再赘述。It should be noted that, for the above-mentioned "top" and "bottom", reference may be made to the above-mentioned similar definitions, which will not be repeated here.
例如，第二罐体23内的油水蒸气经过冷却后未冷凝的不凝气体净化后作为燃料供热解过程使用或进入废弃炉处置。For example, the oil and water vapor in the second tank 23 is purified by the non-condensable gas that is not condensed after cooling, and then used as a fuel for the pyrolysis process or into a waste furnace for disposal.
例如，第二罐体23中至少部分油水蒸气冷凝形成油水混合液，该油水混合液的温度为40℃～80℃，油水混合液从第二罐体23的第一排液口27排出，然后从与第一排液口27连通的第二进液口28进入油水分离器26。基于密度差，该油水分离器26将从第二罐体23排出的油水混合液中的轻质油和含油废水进行分离，将分离出的轻质油进行回收和再利用，将分离出的含油废水输送到第二罐体23的冷凝***中循环利用或排入污水处理***。For example, at least part of the oil and water vapor in the second tank 23 is condensed to form an oil-water mixture, the temperature of the oil-water mixture is 40°C to 80°C, and the oil-water mixture is discharged from the first liquid outlet 27 of the second tank 23 , and then The oil-water separator 26 is entered from the second liquid inlet port 28 that communicates with the first liquid discharge port 27 . Based on the difference in density, the oil-water separator 26 separates the light oil and oil-containing wastewater in the oil-water mixture discharged from the second tank 23, recovers and reuses the separated light oil, and separates the separated oil-containing waste water. The waste water is sent to the condensing system of the second tank 23 for recycling or discharged into the sewage treatment system.
例如，该冷凝器21能够将不凝气体、轻质油和水分离出，从而最大程度的回收油水蒸气中的轻质油和不凝气体，以提高油的回收率。For example, the condenser 21 can separate non-condensable gas, light oil and water, so as to recover the light oil and non-condensable gas in the oil and water vapor to the maximum extent, so as to improve the oil recovery rate.
例如，如图2所示，该热解气冷凝协同处理含液油泥的装置还包括油分离器29，第一罐体10还包括设置在其底部的第二排液口30，该油分离器29包括第三进液口31，第二排液口30和第三进液口31连通。在第一罐体10中冷凝出的重质油能够向下流动到底部的第二排液口30排出。For example, as shown in FIG. 2, the device for co-processing liquid-containing sludge by pyrolysis gas condensation further includes an oil separator 29, and the first tank body 10 further includes a second liquid discharge port 30 disposed at the bottom of the oil separator. 29 includes a third liquid inlet 31, and the second liquid outlet 30 communicates with the third liquid inlet 31. The heavy oil condensed in the first tank body 10 can flow down to the second liquid discharge port 30 at the bottom for discharge.
例如，含液油泥中经加热的重质油分和固相与热解气冷凝的重质油分混合形成含固油相进入油分离器29。在油分离器29中，含固油相进行沉降分离，分离出的重质油可采用储油罐收集以进一步利用；分离出的含油固相可以进行深度处理以防止环境污染。For example, the heated heavy oil and solid phase in the liquid sludge are mixed with the heavy oil condensed from the pyrolysis gas to form a solid oil phase and enter the oil separator 29 . In the oil separator 29, the solid-containing oil phase is subjected to sedimentation separation, and the separated heavy oil can be collected in an oil storage tank for further utilization; the separated oil-containing solid phase can be subjected to advanced treatment to prevent environmental pollution.
例如，第一排气口22和第二排液口30分别位于第一罐体10的顶部和 底部，可以使得上升的油水蒸气和向下流动的重质油能够完全的离开第一罐体10，避免在第一罐体10内滞留，以使的油资源的回收率达到最大。For example, the first exhaust port 22 and the second liquid drain port 30 are located at the top and bottom of the first tank 10 , respectively, so that the rising oil and water vapor and the downward flowing heavy oil can completely leave the first tank 10 , to avoid staying in the first tank 10, so as to maximize the recovery rate of oil resources.
需要说明的是，上述提及的“顶部”、“底部”可以参见前述类似定义，在此不再赘述。It should be noted that, for the above-mentioned "top" and "bottom", reference may be made to the above-mentioned similar definitions, which will not be repeated here.
例如，在本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置中，与外界接触的管路的表面都包裹有保温层，以使管路中流通的介质的温度基本保持不变。For example, in the device for co-processing liquid sludge with pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the surface of the pipeline in contact with the outside world is covered with a thermal insulation layer, so that the temperature of the medium circulating in the pipeline is basically maintained. constant.
例如，采用本公开的实施例提供的热解气冷凝协同处理含液油泥的装置，无需外界热源的添加，仅通过需要被资源化的热解气和含液油泥即可实现，从而使得能量和资源得到最大化的利用，且达到了含液油泥和热解气的无害化处理、回收热解气和含液油泥中的石油资源以实现资源再利用的目的。该热解气冷凝协同处理含液油泥的装置还可以实现自动化控制和模块化设计，占地面积小，安装移动方便，可在污染区域就近处理，以减少含液油泥的运输成本。For example, the device for co-processing liquid-containing sludge with pyrolysis gas condensation provided in the embodiments of the present disclosure can be realized only by the pyrolysis gas and liquid-containing sludge that need to be recycled without the addition of an external heat source, so that the energy and The resources are maximized, and the harmless treatment of liquid sludge and pyrolysis gas is achieved, and the petroleum resources in pyrolysis gas and liquid sludge are recovered to realize the purpose of resource reuse. The device for co-processing liquid-containing sludge by pyrolysis gas condensation can also realize automatic control and modular design, with small footprint, convenient installation and movement, and can be processed nearby in polluted areas to reduce the transportation cost of liquid-containing sludge.
本公开至少一实施例还提供一种热解气冷凝协同处理含液油泥的方法，例如，图3为本公开一实施例提供的一种热解气冷凝协同处理含液油泥的流程图。如图3所示，该方法包括如下步骤。At least one embodiment of the present disclosure further provides a method for co-processing liquid-containing sludge with pyrolysis gas condensation. For example, FIG. 3 is a flowchart of a pyrolysis gas condensation co-processing liquid-containing sludge according to an embodiment of the disclosure. As shown in Figure 3, the method includes the following steps.
S01：提供含液油泥和热解气；S01: Provide liquid sludge and pyrolysis gas;
S02：将含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。S02: contacting the liquid-containing sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and at least part of the water phase and at least part of the oil phase in the liquid-containing sludge evaporate to obtain oil-water vapor and solid-containing oil phase.
例如，热解气的温度通常可以达到250℃～550℃，如果专门采用冷却水、冷却油等对高温热解气进行冷凝，将会造成高温热解气的热量无法得到充分利用，且冷却水或者冷却油的消耗量也非常大，从而造成了大量的资源浪费。含液率高的含液油泥需要被加热以对其中的油资源进行回收，同时还可以避免环境污染，因此，采用高温热解气对低温的含液油泥进行加热，同时低温的含液油泥对高温热解气进行冷凝，可以实现热解气冷凝协同处理含液油泥，以使得资源得到最大化利用且可以避免环境污染。For example, the temperature of the pyrolysis gas can usually reach 250°C to 550°C. If cooling water, cooling oil, etc. are specially used to condense the high temperature pyrolysis gas, the heat of the high temperature pyrolysis gas will not be fully utilized, and the cooling water will not be fully utilized. Or the consumption of cooling oil is also very large, resulting in a lot of waste of resources. The liquid-containing sludge with high liquid content needs to be heated to recover the oil resources in it, and at the same time to avoid environmental pollution. Therefore, the high-temperature pyrolysis gas is used to heat the low-temperature liquid-containing sludge, and the low-temperature liquid-containing sludge is The high temperature pyrolysis gas is condensed, which can realize the synergistic treatment of liquid sludge by the pyrolysis gas condensation, so as to maximize the utilization of resources and avoid environmental pollution.
例如，采用高温热解气与低温含液油泥接触进行换热，可以实现对高温热解气进行冷凝，使得高温热解气中至少部分油相冷凝；对含液油泥进行加热，使得含液油泥中的水相和至少部分油相蒸发，从而可以在不增加能耗的 情况下可以回收更多的油资源，同时在不使用任何化学药剂的情况下可以实现油和水的分离，并对含液油泥中的油资源进行回收以得到高质量的油资源。For example, by using high-temperature pyrolysis gas and low-temperature liquid-containing sludge for heat exchange, the high-temperature pyrolysis gas can be condensed, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed; the liquid-containing sludge is heated to make the liquid-containing sludge The water phase and at least part of the oil phase are evaporated, so that more oil resources can be recovered without increasing energy consumption, and the separation of oil and water can be achieved without the use of any chemicals, and the The oil resources in the liquid sludge are recovered to obtain high-quality oil resources.
例如，该含液油泥为具有流动性的油泥，该含液油泥中水和油的总质量百分含量为70％～95％。例如，该含液油泥中水和油的质量百分含量为70％、75％、80％、85％、90％或者95％，这样可以保证含液油泥在运输管路中进行很好的流动，也可以保证对热解气进行很好的冷凝。For example, the liquid-containing sludge is a fluid sludge, and the total mass percentage of water and oil in the liquid-containing sludge is 70% to 95%. For example, the mass percentage of water and oil in the liquid sludge is 70%, 75%, 80%, 85%, 90% or 95%, which can ensure that the liquid sludge flows well in the transportation pipeline , it can also ensure a good condensation of the pyrolysis gas.
例如，热解气是含油废弃物经过热脱附处理产生的。热脱附的过程是在高温绝氧的条件下，含油废弃物中的有机污染物发生蒸发和热解等作用，最终将含油废弃物中的油和水从固相彻底分离，并对石油资源加以回收，实现含油废弃物的无害化处理和资源化利用。例如，可以在一个或多个热解炉内进行热脱附处理，且将热脱附处理的温度控制在250℃～550℃，热解的时间控制在0.4h～3.2h，最终形成的热解气的温度为250℃～550℃。例如，热解气的温度为250℃、300℃、350℃、400℃、450℃、500℃或者550℃。For example, pyrolysis gas is produced by thermal desorption of oily waste. The process of thermal desorption is the evaporation and pyrolysis of organic pollutants in the oily waste under the condition of high temperature and anaerobic, and finally the oil and water in the oily waste are completely separated from the solid phase, and the oil resources are completely separated. It is recycled to realize the harmless treatment and resource utilization of oily waste. For example, thermal desorption treatment can be performed in one or more pyrolysis furnaces, and the temperature of thermal desorption treatment is controlled at 250°C to 550°C, and the pyrolysis time is controlled at 0.4h to 3.2h. The degassing temperature is 250°C to 550°C. For example, the temperature of the pyrolysis gas is 250°C, 300°C, 350°C, 400°C, 450°C, 500°C or 550°C.
例如，热解气中的重质油组分冷凝为液相，在热解气的加热作用下含液油泥的稳定性被破坏，乳化性降低，同时含液油泥中的水组分和轻质油组分被热解气加热形成水蒸气和油蒸气。热解气中未冷凝的气相和从含液油泥蒸发的油蒸气、水蒸气混合形成油水蒸气。For example, the heavy oil components in the pyrolysis gas are condensed into a liquid phase, and the stability of the liquid sludge is destroyed under the heating effect of the pyrolysis gas, and the emulsification is reduced. The oil component is heated by the pyrolysis gas to form water vapor and oil vapor. The uncondensed gas phase in the pyrolysis gas and the oil vapor and water vapor evaporated from the liquid sludge are mixed to form oil and water vapor.
例如，将含液油泥与热解气接触进行热交换包括：将含液油泥输送至罐体的进液口，将热解气输送至罐体的进气口，含液油泥与热解气在罐体中接触以进行热交换。For example, contacting the liquid-containing sludge with the pyrolysis gas for heat exchange includes: transporting the liquid-containing sludge to the liquid inlet of the tank body, transporting the pyrolysis gas to the air inlet of the tank body, and the liquid-containing sludge and the pyrolysis gas are contact in the tank for heat exchange.
例如，图4为本公开再一实施例提供的一种热解气冷凝协同处理含液油泥的流程图，如图4所示，该方法包括如下步骤。For example, FIG. 4 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 4 , the method includes the following steps.
S11：提供含液油泥和热解气；S11: Provide liquid sludge and pyrolysis gas;
S12：在将含液油泥与热解气接触之前，在输送含液油泥的过程中在含液油泥中混入保护气体；S12: before the liquid-containing sludge is contacted with the pyrolysis gas, a protective gas is mixed into the liquid-containing sludge during the transportation of the liquid-containing sludge;
S13：将含液油泥和保护气体的混合物与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。S13: contacting the mixture of liquid sludge and protective gas with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and to evaporate at least part of the water phase and at least part of the oil phase in the liquid sludge to obtain Oil-water vapor and solid-containing oil phase.
例如，保护气体可以防止在高温条件下从含液油泥中挥发出的气体或者热解气被残留在罐体中的氧气或者在传输含液油泥的过程中带入的氧气氧 化。For example, the shielding gas can prevent the gas volatilized from the liquid sludge at high temperature or the pyrolysis gas from being oxidized by the oxygen remaining in the tank or the oxygen brought in during the transport of the liquid sludge.
例如，将含液油泥和保护气体的混合物与热解气接触进行热交换的过程中，可以使得含液油泥和热解气的接触面积更大，从而使得含液油泥和热解气的热交换更充分。For example, in the process of contacting the mixture of liquid sludge and protective gas with the pyrolysis gas for heat exchange, the contact area of the liquid sludge and the pyrolysis gas can be made larger, so that the heat exchange between the liquid sludge and the pyrolysis gas can be increased. more fully.
例如，该保护气体为氦气、氩气等惰性气体和氮气中的至少之一。For example, the protective gas is at least one of inert gases such as helium and argon, and nitrogen.
例如，图5为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图，如图5所示，该方法包括如下步骤。For example, FIG. 5 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 5 , the method includes the following steps.
S21：提供含液油泥和热解气；S21: Provide liquid sludge and pyrolysis gas;
S22：输送含液油泥和热解气，并调节含液油泥的流量；S22: transport liquid-containing sludge and pyrolysis gas, and adjust the flow rate of liquid-containing sludge;
S23：将含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相，通过调节含液油泥的流量，以使得到的油水蒸气的温度在100℃～200℃的范围内。S23: contacting the liquid-containing sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and evaporating at least part of the water phase and at least part of the oil phase in the liquid-containing sludge to obtain oil-water vapor and solid-containing sludge In the oil phase, the flow rate of the liquid-containing sludge is adjusted so that the temperature of the obtained oil and water vapor is in the range of 100°C to 200°C.
例如，在将含液油泥输送至进液口的过程中，采用增压泵和液相调节阀中的至少之一调节含液油泥的流量。例如，该增压泵可以设置在传输含液油泥的管路上，该液相调节阀可以设置在增压泵和进液口之间。For example, in the process of transporting the liquid-containing sludge to the liquid inlet, at least one of a booster pump and a liquid-phase regulating valve is used to adjust the flow rate of the liquid-containing sludge. For example, the booster pump can be arranged on the pipeline for conveying the liquid-containing sludge, and the liquid phase regulating valve can be arranged between the booster pump and the liquid inlet.
例如，在将含液油泥输送至进液口的过程中，可以采用增压泵为含液油泥的流动提供动力，即对含液油泥施加压力以加快对含液油泥的传输速度以调节含液油泥的流量，以及采用液相调节阀控制阀门的开度以调节含液油泥的流量，以保证有足够量的含液油泥与热解气充分接触。For example, in the process of transporting the liquid sludge to the liquid inlet, a booster pump can be used to provide power for the flow of the liquid sludge, that is, to apply pressure to the liquid sludge to speed up the transmission speed of the liquid sludge to adjust the liquid sludge The flow rate of the sludge, and the liquid-phase control valve is used to control the opening of the valve to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of liquid-containing sludge is fully contacted with the pyrolysis gas.
例如，罐体内还可以设置喷淋器，喷淋器与进液口连通，通过喷淋器可以向热解气喷淋含液油泥，以使含液油泥与热解气接触进行热交换。For example, a sprayer can also be arranged in the tank, the sprayer is connected with the liquid inlet, and the liquid-containing sludge can be sprayed to the pyrolysis gas through the sprayer, so that the liquid-containing sludge and the pyrolysis gas can be contacted for heat exchange.
例如，图6为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图，如图6所示，该方法包括如下步骤。For example, FIG. 6 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 6 , the method includes the following steps.
S31：提供含液油泥和热解气；S31: Provide liquid sludge and pyrolysis gas;
S32：将含液油泥输送至罐体的进液口并输送至与进液口连通的喷淋器，将热解气输送至罐体的进气口；S32: transport the liquid-containing sludge to the liquid inlet of the tank body and to the sprayer connected with the liquid inlet, and transport the pyrolysis gas to the gas inlet of the tank body;
S33：通过喷淋器向热解气喷淋含液油泥，以使含液油泥与热解气接触进行热交换，以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。S33: Spray the liquid-containing sludge to the pyrolysis gas through a sprayer, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange, so that at least part of the oil phase in the pyrolysis gas is condensed, and at least part of the liquid-containing sludge is condensed. The water phase and at least a portion of the oil phase are evaporated to obtain oil water vapor and a solids-containing oil phase.
例如，该罐体还包括用于排出油水蒸气的排气口，在从排气口排出油水 蒸气的输送通道中设置有温度变送器，该方法还包括：通过温度变送器和液相调节阀联锁控制，将油水蒸气的温度控制在100℃～200℃。For example, the tank body further includes an exhaust port for discharging oil and water vapor, a temperature transmitter is arranged in the conveying channel for discharging oil and water vapor from the exhaust port, and the method further includes: adjusting the temperature transmitter and the liquid phase Valve interlock control, the temperature of oil and water vapor is controlled at 100 ℃ ~ 200 ℃.
例如，图7为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图，如图7所示，该方法包括如下步骤。For example, FIG. 7 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 7 , the method includes the following steps.
S41：提供含液油泥和热解气；S41: Provide liquid sludge and pyrolysis gas;
S42：输送含液油泥和热解气，并调节含液油泥的流量；S42: transport liquid-containing sludge and pyrolysis gas, and adjust the flow rate of liquid-containing sludge;
S43：将含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相，通过温度变送器和液相调节阀联锁控制，将油水蒸气的温度控制在100℃～200℃。S43: contacting the liquid-containing sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and evaporating at least part of the water phase and at least part of the oil phase in the liquid-containing sludge to obtain oil-water vapor and solid-containing sludge The oil phase is controlled by the interlocking control of the temperature transmitter and the liquid phase regulating valve, and the temperature of the oil and water vapor is controlled at 100℃～200℃.
例如，在将含液油泥输送至进液口的过程中，可以采用增压泵为含液油泥的流动提供动力，即对含液油泥施加压力以加快对含液油泥的传输速度以调节含液油泥的流量，以及采用液相调节阀控制阀门的开度以调节含液油泥的流量，以保证有足够量的含液油泥与热解气充分接触。For example, in the process of transporting the liquid sludge to the liquid inlet, a booster pump can be used to provide power for the flow of the liquid sludge, that is, to apply pressure to the liquid sludge to speed up the transmission speed of the liquid sludge to adjust the liquid sludge The flow rate of the sludge, and the liquid-phase control valve is used to control the opening of the valve to adjust the flow rate of the liquid-containing sludge, so as to ensure that a sufficient amount of liquid-containing sludge is fully contacted with the pyrolysis gas.
例如，该温度变送器可以将油水蒸气的温度变量转换为可传送的标准化输出信号，以用于对油水蒸气温度参数的测量和控制。当温度变送器显示油水蒸气的温度低于100℃时，可以指示液相调节阀以减小含液油泥的流量；当温度变送器显示油水蒸气的温度高于200℃时，可以指示液相调节阀以加大含液油泥的流量，以实现液相调节阀和温度变送器的联锁控制，从而使得后续进入冷凝器的油水蒸气能够得到充分的利用。For example, the temperature transmitter can convert the oil-water vapor temperature variable into a transmittable standardized output signal for measurement and control of the oil-water vapor temperature parameter. When the temperature transmitter shows that the temperature of oil and water vapor is lower than 100℃, the liquid-phase regulating valve can be instructed to reduce the flow rate of liquid-containing sludge; when the temperature transmitter shows that the temperature of oil and water vapor is higher than 200℃, it can indicate the liquid The phase regulating valve is used to increase the flow rate of liquid sludge, so as to realize the interlocking control of the liquid phase regulating valve and the temperature transmitter, so that the oil and water vapor entering the condenser can be fully utilized.
例如，图8为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图，如图8所示，该方法包括如下步骤。For example, FIG. 8 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid-containing sludge provided by another embodiment of the present disclosure. As shown in FIG. 8 , the method includes the following steps.
S51：提供含液油泥和热解气；S51: Provide liquid sludge and pyrolysis gas;
S52：将含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相；S52: contacting the liquid-containing sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and evaporating at least part of the water phase and at least part of the oil phase in the liquid-containing sludge to obtain oil-water vapor and solid-containing sludge oil phase;
S53：将油水蒸气进行冷凝处理以得到油水混合物和不凝气体；S53: Condensing the oil-water vapor to obtain an oil-water mixture and a non-condensable gas;
S54：将油水混合物进行油水分离以得到轻质油和含油废水，将不凝气体进行收集；S54: oil-water mixture is separated from oil and water to obtain light oil and oily waste water, and non-condensable gas is collected;
S55：将含固油相进行沉降分离以得到重质油和含油固相。S55: Carry out sedimentation separation of the solid-containing oil phase to obtain heavy oil and oil-containing solid phase.
例如，当在如图2所示的热解气冷凝协同处理含液油泥的装置中完成上 述过程时，热解气冷凝协同处理含液油泥的方法包括采用冷凝器对油水蒸气进行冷凝，冷凝器包括第二罐体和油水分离器，将油水蒸气输送至第二罐体，在第二罐体中将油水蒸气冷却至40℃～80℃，以得到油水混合物和不凝气体；将油水混合物输送至油水分离器以得到轻质油和含油废水；同时将不凝气体收集。For example, when the above process is completed in the device for co-processing liquid-containing sludge by pyrolysis gas condensation as shown in FIG. 2, the method for co-processing liquid-containing sludge by pyrolysis gas condensation includes using a condenser to condense oil and water vapor, and the condenser It includes a second tank body and an oil-water separator, and transports the oil-water vapor to the second tank body, and cools the oil-water vapor to 40℃～80℃ in the second tank body to obtain the oil-water mixture and non-condensable gas; the oil-water mixture is transported to the oil-water separator to obtain light oil and oily waste water; meanwhile, the non-condensable gas is collected.
例如，在第二罐体中将油水蒸气冷却包括采用直接换热或者间接换热的方式对油水蒸气进行冷却，直接换热的方式包括采用油或水对油水蒸气直接进行喷淋；间接换热的方式包括采用冷却水列管等对油水蒸气进行冷却。For example, cooling the oil and water vapor in the second tank includes using direct heat exchange or indirect heat exchange to cool the oil and water vapor, and the direct heat exchange method includes using oil or water to directly spray the oil and water vapor; indirect heat exchange The method includes cooling the oil and water vapor by using cooling water tubes, etc.
例如，基于密度差，该油水分离器将从第二罐体排出的油水混合液中的轻质油和含油废水进行分离，将分离出的轻质油进行回收和再利用，将分离出的含油废水输送到第二罐体的冷凝***中循环利用或排入污水处理***。该冷凝器能够将不凝气体、轻质油和水分离出，从而最大程度的回收油水蒸气中的油质，以提高了油资源的回收率。For example, based on the density difference, the oil-water separator separates the light oil and oil-containing waste water in the oil-water mixture discharged from the second tank, recovers and reuses the separated light oil, and separates the separated oil-containing waste water. The waste water is sent to the condensing system of the second tank for recycling or discharged into the sewage treatment system. The condenser can separate non-condensable gas, light oil and water, so as to recover the oil quality in the oil and water vapor to the greatest extent, so as to improve the recovery rate of oil resources.
例如，热解气冷凝协同处理含液油泥的方法还包括采用油分离器对重质油和含油固相进行沉降分离，分离出的重质油可采用储油罐收集以进一步利用；分离出的含油固相进行深度处理。For example, the method for co-processing liquid-containing sludge by pyrolysis gas condensation also includes using an oil separator to carry out sedimentation separation of heavy oil and oil-containing solid phase, and the separated heavy oil can be collected in an oil storage tank for further utilization; Oil-containing solid phase for advanced treatment.
例如，图9为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图。例如，图9所示的热解气冷凝协同处理含液油泥的方法在如图2所示的热解气冷凝协同处理含液油泥的装置中完成。如图9所示，该方法包括如下步骤。For example, FIG. 9 is a flow chart of a pyrolysis gas condensation co-processing liquid-containing sludge provided by another embodiment of the present disclosure. For example, the method for co-processing liquid-containing sludge with pyrolysis gas condensation shown in FIG. 9 is completed in the device for co-processing liquid-containing sludge with pyrolysis gas condensation shown in FIG. 2 . As shown in Figure 9, the method includes the following steps.
S61：提供含液油泥、热解气和保护气体；S61: Provide liquid sludge, pyrolysis gas and protective gas;
S62：将热解气输送至第一罐体的第一进气口；S62: delivering the pyrolysis gas to the first air inlet of the first tank;
S63：采用增压泵对含液油泥施加压力，采用液相调节阀调节含液油泥的流量，将含液油泥输送至第一罐体的第一进液口；S63: use a booster pump to apply pressure to the liquid-containing sludge, use a liquid-phase regulating valve to adjust the flow rate of the liquid-containing sludge, and transport the liquid-containing sludge to the first liquid inlet of the first tank;
S64：从第二进气口输入保护气体，将保护气体传输至喷淋器与第一进液口之间；S64: Input the protective gas from the second air inlet, and transmit the protective gas between the shower and the first liquid inlet;
S65：将含液油泥和保护气体混合，将混合后的含液油泥和保护气体输送至喷淋器；S65: Mix the liquid-containing sludge and the protective gas, and deliver the mixed liquid-containing sludge and the protective gas to the sprinkler;
S66：采用喷淋器向热解气喷淋含液油泥和保护气体的混合物，使含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。S66: Use a sprayer to spray the mixture of liquid-containing sludge and protective gas to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and the liquid-containing sludge is At least part of the water phase and at least part of the oil phase are evaporated to obtain oil water vapor and a solids-containing oil phase.
例如，该热解气冷凝协同处理含液油泥的方法，还包括：采用位于第一罐体10内的喷淋器17向热解气喷淋含液油泥，该喷淋器17与第一进液口11相连通，第一进液口11和喷淋器17位于第一罐体10的上部，第一进气口12位于第一罐体10的下部。For example, the method for co-processing liquid-containing sludge by condensation of pyrolysis gas further includes: spraying the pyrolysis gas with liquid-containing sludge by using a sprayer 17 located in the first tank body 10, the sprayer 17 and the first inlet The liquid ports 11 communicate with each other, the first liquid inlet 11 and the sprayer 17 are located at the upper part of the first tank body 10 , and the first air inlet 12 is located at the lower part of the first tank body 10 .
例如，该第一罐体10还包括位于其顶部的第二进气口19，第二进气口19连通至喷淋器17与第一进液口11之间，从第二进气口19进入的保护气体和含液油泥混合后被输送至喷淋器17。该第二进气口19位于第一罐体10的顶部，可以便于第二进气口19连通至喷淋器17与第一进液口11之间，可以减少位于第一罐体10中的管路的长度，同时，也有利于保护气体向下流动直接和含液流泥混合。For example, the first tank body 10 further includes a second air inlet 19 at the top of the tank. The second air inlet 19 communicates between the shower 17 and the first liquid inlet 11, and the second air inlet 19 The incoming shielding gas and liquid-containing sludge are mixed and sent to the sprayer 17 . The second air inlet 19 is located at the top of the first tank 10 , which can facilitate the communication between the second air inlet 19 and the sprayer 17 and the first liquid inlet 11 , and can reduce the amount of water in the first tank 10 . The length of the pipeline, at the same time, is also conducive to the downward flow of the shielding gas to directly mix with the liquid-containing mud.
例如，该保护气体通过延伸并连通至第二进气口19的第三管路18传输，在第三管路18上还设置有气体调节阀20，可以采用气体调节阀20对保护气体的流量进行调节。例如，根据调节部位的信号，可以自动控制该气体调节阀20阀门的开度，从而实现保护气体流量的调节。For example, the shielding gas is transmitted through the third pipeline 18 extending and communicating with the second air inlet 19, and a gas regulating valve 20 is also provided on the third pipeline 18, and the gas regulating valve 20 can be used to control the flow rate of the shielding gas Make adjustments. For example, according to the signal of the regulating part, the opening degree of the gas regulating valve 20 can be automatically controlled, so as to realize the regulation of the flow rate of the protective gas.
例如，图10为本公开又一实施例提供的一种热解气冷凝协同处理含液油泥的流程图。例如，图10所示的热解气冷凝协同处理含液油泥的方法在如图2所示的热解气冷凝协同处理含液油泥的装置中完成。如图10所示，该方法包括如下步骤。For example, FIG. 10 is a flowchart of a pyrolysis gas condensation synergistic treatment of liquid sludge provided by another embodiment of the present disclosure. For example, the method for co-processing liquid sludge with pyrolysis gas condensation shown in FIG. 10 is completed in the device for co-processing liquid sludge with pyrolysis gas condensation as shown in FIG. 2 . As shown in Figure 10, the method includes the following steps.
S71：提供含液油泥、热解气和保护气体；S71: Provide liquid sludge, pyrolysis gas and protective gas;
S72：将热解气输送至第一罐体的第一进气口；S72: transport the pyrolysis gas to the first air inlet of the first tank;
S73：采用增压泵对含液油泥施加压力，采用液相调节阀调节含液油泥的流量，将含液油泥输送至第一罐体的第一进液口；S73: use a booster pump to apply pressure to the liquid-containing sludge, use a liquid-phase regulating valve to adjust the flow of the liquid-containing sludge, and transport the liquid-containing sludge to the first liquid inlet of the first tank;
S74：从第二进气口输入保护气体，将保护气体传输至喷淋器与第一进液口之间，使含液油泥和保护气体混合，将混合后的含液油泥和保护气体输送至喷淋器；S74: Input the protective gas from the second air inlet, transmit the protective gas between the sprayer and the first liquid inlet, mix the liquid-containing sludge and the protective gas, and deliver the mixed liquid-containing sludge and the protective gas to the sprinkler;
S75：采用喷淋器向热解气喷淋含液油泥和保护气体的混合物，使含液油泥与热解气接触进行热交换以使热解气中的至少部分油相冷凝，含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相；S75: Use a sprayer to spray the mixture of liquid-containing sludge and protective gas to the pyrolysis gas, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas, and the liquid-containing sludge is At least part of the water phase and at least part of the oil phase are evaporated to obtain oil water vapor and a solid-containing oil phase;
S76：通过第一罐体的第一排气口与冷凝器包括的第二罐体的第三进气口之间的温度变送器和液相调节阀的联锁控制，将油水蒸气的温度控制在100℃～200℃；S76: Through the interlocking control of the temperature transmitter and the liquid-phase regulating valve between the first exhaust port of the first tank and the third air inlet of the second tank included in the condenser, the temperature of the oil and water vapor is adjusted to Controlled at 100℃～200℃;
S77：将油水蒸气从第一排气口传输至第三进气口以进入第二罐体，将油水蒸气冷却至40℃～80℃，以得到油水混合物和不凝气体，对不凝气体进行收集，将油水混合物输送至冷凝器包括的油水分离器；S77: Transfer the oil and water vapor from the first exhaust port to the third air inlet to enter the second tank, cool the oil and water vapor to 40°C to 80°C to obtain an oil-water mixture and a non-condensable gas, and perform a Collect and deliver the oil-water mixture to the oil-water separator included in the condenser;
S78：基于密度差，在油水分离器中将轻质油和含油废水分离；S78: Separation of light oil and oily wastewater in an oil-water separator based on density difference;
S79：从位于第一罐体底部的第二排液口排出含固油相，将含固油相输送至油分离器通过沉降分离的方式分离重质油和含油固相。S79: The solid-containing oil phase is discharged from the second liquid discharge port located at the bottom of the first tank, and the solid-containing oil phase is transported to an oil separator to separate heavy oil and oil-containing solid phase by means of sedimentation separation.
例如，所采用的热解气冷凝协同处理含液油泥所采用的热解气冷凝协同处理含液油泥的装置还包括冷凝器21，第一罐体10还包括在其顶部的第一排气口22，油水蒸气从第一排气口22排出至冷凝器21；冷凝器21包括第二罐体23，第二罐体23包括第三进气口24，第一排气口22与第三进气口24相连通；通过第一排气口22与第三进气口24之间的温度变送器25和液相调节阀16的联锁控制，将油水蒸气的温度控制在100℃～200℃。For example, the apparatus used for the co-processing of liquid-containing sludge by pyrolysis gas condensation further includes a condenser 21, and the first tank 10 further includes a first exhaust port at the top thereof 22, the oil and water vapor is discharged from the first exhaust port 22 to the condenser 21; the condenser 21 includes a second tank 23, the second tank 23 includes a third air inlet 24, the first exhaust port 22 and the third inlet The air port 24 is connected; through the interlocking control of the temperature transmitter 25 and the liquid phase regulating valve 16 between the first exhaust port 22 and the third air inlet 24, the temperature of the oil and water vapor is controlled at 100 ℃～200 ℃ °C.
例如，该热解气冷凝协同处理含液油泥的方法还包括：将油水蒸气输送至第二罐体23，在第二罐体23中将油水蒸气冷却至40℃～80℃，以得到油水混合物和不凝气体；将油水混合物输送至冷凝器21包括的油水分离器26以得到轻质油和含油废水；同时将不凝气体收集。For example, the method for co-processing liquid-containing sludge by pyrolysis gas condensation further includes: transporting oil-water vapor to the second tank 23, and cooling the oil-water vapor to 40°C to 80°C in the second tank 23 to obtain an oil-water mixture and non-condensable gas; the oil-water mixture is sent to the oil-water separator 26 included in the condenser 21 to obtain light oil and oily wastewater; meanwhile, the non-condensable gas is collected.
例如，在第二罐体23中将油水蒸气冷却包括采用直接换热或者间接换热的方式对油水蒸气进行冷却，直接换热的方式包括采用油或水对油水蒸气直接进行喷淋；间接换热的方式包括采用冷却水列管等对油水蒸气进行冷却。For example, cooling the oil and water vapor in the second tank 23 includes using direct heat exchange or indirect heat exchange to cool the oil and water vapor, and the direct heat exchange method includes using oil or water to directly spray the oil and water vapor; indirect heat exchange The heat method includes cooling the oil and water vapor by using cooling water tubes and the like.
例如，采用间接换热的方式时，所采用的冷凝器21为间壁式冷凝器，该间壁式冷凝器21包括第二罐体23，第二罐体23中设置有能够进行热交换的容纳腔和冷却介质腔。冷却介质腔内流动的冷却介质能够与容纳腔内的气体进行热交换，使得容纳腔内的油水蒸气冷却。For example, when the indirect heat exchange method is adopted, the adopted condenser 21 is a partition wall type condenser, and the partition wall type condenser 21 includes a second tank body 23, and the second tank body 23 is provided with a accommodating cavity capable of heat exchange and cooling medium cavity. The cooling medium flowing in the cooling medium cavity can exchange heat with the gas in the accommodating cavity, so that the oil and water vapor in the accommodating cavity is cooled.
例如，第二罐体23还包括冷却介质入口和冷却介质出口。通过冷却介质入口与冷却介质源连通，将低温的冷却介质输送到冷却介质腔中。冷却介质出口与冷却介质腔连通，冷却介质在冷却介质腔内流动并与容纳腔内的油水蒸气完成热交换，然后通过冷却介质出口流出。从第二罐体23流出的冷却介质降温后，被送回冷却介质腔，以进行循环流动，持续的对容纳腔内的油水蒸气进行降温冷凝。For example, the second tank 23 further includes a cooling medium inlet and a cooling medium outlet. The cooling medium inlet is communicated with the cooling medium source, and the low temperature cooling medium is transported into the cooling medium cavity. The cooling medium outlet communicates with the cooling medium cavity, the cooling medium flows in the cooling medium cavity and completes heat exchange with the oil and water vapor in the accommodating cavity, and then flows out through the cooling medium outlet. After the cooling medium flowing out of the second tank body 23 is cooled down, it is sent back to the cooling medium cavity for circulating flow, and continuously cooling and condensing the oil and water vapor in the accommodating cavity.
例如，第一罐体10包括设置在其顶部的第一排气口22，第二罐体23包 括第三进气口24，第一排气口22与第三进气口24连接，油水蒸气从第一罐体10的第一排气口22排出后，从第三进气口24进入第二罐体23。For example, the first tank body 10 includes a first exhaust port 22 disposed at the top thereof, the second tank body 23 includes a third air inlet port 24, the first exhaust port 22 is connected to the third air inlet port 24, and the oil and water vapor After being discharged from the first exhaust port 22 of the first tank 10 , it enters the second tank 23 from the third air inlet 24 .
例如，冷却介质腔位于第二罐体23的中部，第三进气口24和第一排液口27可以分别位于第二罐体23的顶部和底部，可以使得油水蒸气由顶部的第三进气口24流入，能够全部向下流动，进行冷凝，避免油水蒸气在第二罐体23的顶部滞留；位于底部的第一排液口27使冷凝出的油水混合液能够完全排出，避免在第二罐体23中滞留。For example, the cooling medium cavity is located in the middle of the second tank body 23, and the third air inlet 24 and the first liquid discharge port 27 can be located at the top and bottom of the second tank body 23, respectively, so that the oil and water vapor can pass through the third inlet port at the top. The gas port 24 flows in and can all flow downward for condensation to prevent the oil and water vapor from staying at the top of the second tank 23; Retained in the secondary tank 23 .
例如，采用直接换热的方式时，该冷凝器21包括第二罐体23，第二罐体23还包括冷却介质入口和冷却介质出口。该冷却介质可以是水或者油，第二罐体23包括第三进气口24，第一排气口22与第三进气口24连接，油水蒸气从第一罐体10的第一排气口22排出后，从第三进气口24进入第二罐体23。第三进气口24可以位于第二罐体23的下部，冷却介质入口可以位于第二罐体23的上部，这样由于重力作用冷却介质向下流动，油水蒸气向上流动，可以使得冷却介质将油水蒸气冷却地更充分。For example, when direct heat exchange is adopted, the condenser 21 includes a second tank 23, and the second tank 23 further includes a cooling medium inlet and a cooling medium outlet. The cooling medium can be water or oil, the second tank 23 includes a third air inlet 24 , the first exhaust port 22 is connected to the third air inlet 24 , and the oil and water vapor are discharged from the first exhaust of the first tank 10 . After the port 22 is discharged, it enters the second tank body 23 from the third air inlet 24 . The third air inlet 24 may be located at the lower part of the second tank body 23, and the cooling medium inlet may be located at the upper part of the second tank body 23, so that the cooling medium flows downward due to the action of gravity, and the oil and water vapor flows upward, so that the cooling medium can make the oil and water flow upward. The vapor cools more fully.
例如，基于密度差，该油水分离器26将从第二罐体23排出的油水混合液中的轻质油和含油废水进行分离，将分离出的轻质油进行回收和再利用，将分离出的含油废水输送到第二罐体23的冷凝***中循环利用或排入污水处理***。For example, based on the difference in density, the oil-water separator 26 separates the light oil and oil-containing wastewater in the oil-water mixture discharged from the second tank 23, and recovers and reuses the separated light oil. The oily wastewater is transported to the condensing system of the second tank 23 for recycling or discharged into the sewage treatment system.
例如，该冷凝器21能够将不凝气体、轻质油和水分离出，从而最大程度的回收油水蒸气中的原油，以提高了油资源的回收率。For example, the condenser 21 can separate non-condensable gas, light oil and water, so as to recover the crude oil in the oil and water vapor to the greatest extent, so as to improve the recovery rate of oil resources.
例如，该热解气冷凝协同处理含液油泥的方法还包括：从位于第一罐体10底部的第二排液口30排出含固油相，将含固油相输送至油分离器29以沉降分离重质油和含油固相。For example, the method for co-processing liquid-containing sludge by pyrolysis gas condensation further includes: discharging the solid-containing oil phase from the second liquid discharge port 30 located at the bottom of the first tank 10, and conveying the solid-containing oil phase to the oil separator 29 to remove the solid-containing oil phase. Settling separates the heavy oil from the oily solid phase.
例如，该油分离器29包括第三进液口31，第二排液口30和第三进液口31连通。含液油泥中经加热的重质油分和固相与热解气冷凝的重质油分混合形成的含固油相能够向下流动到底部的第二排液口30排出，以进入油分离器29。在油分离器29中，含固油相进行沉降分离，分离出的重质油可采用储油罐收集以进一步利用；分离出的含油固相进行深度处理。For example, the oil separator 29 includes a third liquid inlet 31 , and the second liquid outlet 30 communicates with the third liquid inlet 31 . The solid-containing oil phase formed by mixing the heated heavy oil and solid phase in the liquid sludge with the heavy oil condensed from the pyrolysis gas can flow down to the second liquid discharge port 30 at the bottom for discharge to enter the oil separator 29 . In the oil separator 29, the solid-containing oil phase is subjected to sedimentation separation, and the separated heavy oil can be collected in an oil storage tank for further utilization; the separated oil-containing solid phase is subjected to advanced treatment.
例如，第一排气口22和第二排液口30分别位于第一罐体10的顶部和底部，从而使上升的油水蒸气和下流的重质油能够完全的离开第一罐体10，避免在第一罐体10内滞留。For example, the first exhaust port 22 and the second liquid drain port 30 are located at the top and bottom of the first tank 10, respectively, so that the rising oil and water vapor and the downstream heavy oil can completely leave the first tank 10, avoiding It stays in the first tank body 10 .
本公开的实施例提供的热解气冷凝协同处理含液油泥的装置和方法，具有以下至少一项有益效果：The device and method for co-processing liquid sludge with pyrolysis gas condensation provided by the embodiments of the present disclosure have at least one of the following beneficial effects:
(1)本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法，采用高温热解气与含液油泥接触进行换热，以实现含液油泥对高温热解气进行冷凝，高温热解气对含液油泥进行加热，使得高温热解气中至少部分油相冷凝，含液油泥中的至少部分油相挥发，节省了资源。(1) The method for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, adopts high-temperature pyrolysis gas to contact liquid-containing sludge for heat exchange, so as to realize the condensation of liquid-containing sludge on high-temperature pyrolysis gas, The high-temperature pyrolysis gas heats the liquid-containing sludge, so that at least part of the oil phase in the high-temperature pyrolysis gas is condensed, and at least part of the oil phase in the liquid-containing sludge is volatilized, saving resources.
(2)本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法，含液油泥在不使用任何化学药剂和不增加额外能耗的情况下实现了油和水的分离，回收了更多的油资源。(2) The method for the co-processing of liquid-containing sludge by pyrolysis gas condensation provided by at least one embodiment of the present disclosure, the liquid-containing sludge realizes the separation of oil and water without using any chemicals and without increasing additional energy consumption, and recovering more oil resources.
(3)本公开至少一实施例提供的热解气冷凝协同处理含液油泥的方法，保护气体和含液油泥形成混合物后被输送至喷淋器可以使得喷淋时含液油泥和热解气的接触面积更大，从而使得含液油泥和热解气的热交换更充分。(3) The method for co-processing liquid-containing sludge by pyrolysis gas condensation provided by at least one embodiment of the present disclosure, the protective gas and liquid-containing sludge form a mixture and then are transported to the sprayer, so that the liquid-containing sludge and pyrolysis gas can be sprayed during spraying. The contact area is larger, so that the heat exchange between the liquid sludge and the pyrolysis gas is more sufficient.
(4)本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，相对于第一进气口，第一进液口更靠近第一罐体的顶部，使得含液油泥在重力的作用下向远离顶部的方向流动，热解气向靠近顶部的方向流动，使得热解气和含液油泥接触的表面更多，从而使得含液油泥和热解气接触的更充分，热交换的过程也更充分。(4) In the device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the first liquid inlet is closer to the top of the first tank than the first air inlet, so that the liquid-containing sludge is Under the action of gravity, it flows away from the top, and the pyrolysis gas flows in the direction close to the top, so that the surface of the contact between the pyrolysis gas and the liquid sludge is more, so that the contact between the liquid sludge and the pyrolysis gas is more sufficient, and the heat The exchange process is also more complete.
(5)本公开至少一实施例提供的热解气冷凝协同处理含液油泥的装置，液相调节阀和温度变送器联锁控制，将从第一排气口排出的油水蒸气的温度控制在100℃～200℃，这样可以使得油水蒸气进入冷凝器后进行充分地冷凝，使得进入冷凝器的油水蒸气能够得到充分的利用。(5) The device for co-processing liquid-containing sludge by pyrolysis gas condensation provided in at least one embodiment of the present disclosure, the interlocking control of the liquid-phase regulating valve and the temperature transmitter, and the temperature control of the oil and water vapor discharged from the first exhaust port At 100°C to 200°C, the oil and water vapor can be fully condensed after entering the condenser, so that the oil and water vapor entering the condenser can be fully utilized.
有以下几点需要说明：The following points need to be noted:
(1)本公开实施例附图只涉及到与本公开实施例涉及到的结构，其他结构可参考通常设计。(1) The accompanying drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures may refer to general designs.
(2)为了清晰起见，在用于描述本公开的实施例的附图中，层或区域的厚度被放大或缩小，即这些附图并非按照实际的比例绘制。可以理解，当诸如层、膜、区域或基板之类的元件被称作位于另一元件“上”或“下”时，该元件可以“直接”位于另一元件“上”或“下”，或者可以存在中间元件。(2) In the drawings for describing the embodiments of the present disclosure, the thicknesses of layers or regions are exaggerated or reduced for clarity, ie, the drawings are not drawn on actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element, Or intermediate elements may be present.
(3)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。(3) The embodiments of the present disclosure and the features in the embodiments may be combined with each other to obtain new embodiments without conflict.
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限 于此，本公开的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims (19)

  1. 一种热解气冷凝协同处理含液油泥的方法，包括：A method for co-processing liquid-containing sludge by pyrolysis gas condensation, comprising:
    提供含液油泥和热解气；Provide liquid sludge and pyrolysis gas;
    将所述含液油泥与所述热解气接触进行热交换以使所述热解气中的至少部分油相冷凝，所述含液油泥中的至少部分水相和至少部分油相蒸发，以得到油水蒸气和含固油相。contacting the liquid-containing sludge with the pyrolysis gas for heat exchange to condense at least part of the oil phase in the pyrolysis gas and vaporizing at least part of the water phase and at least part of the oil phase in the liquid-containing sludge to An oily water vapor and a solids-containing oily phase are obtained.
  2. 根据权利要求1所述的方法，其中，在将所述含液油泥与所述热解气接触之前，在所述含液油泥中混入保护气体。The method of claim 1, wherein a shielding gas is mixed into the liquid-containing sludge prior to contacting the liquid-containing sludge with the pyrolysis gas.
  3. 根据权利要求1或2所述的方法，其中，调节所述含液油泥的流量，以使得到的所述油水蒸气的温度在100℃～200℃的范围内。The method according to claim 1 or 2, wherein the flow rate of the liquid-containing sludge is adjusted so that the temperature of the obtained oil and water vapor is in the range of 100°C to 200°C.
  4. 根据权利要求1-3任一项所述的方法，其中，将所述含液油泥与所述热解气接触进行热交换包括：The method according to any one of claims 1-3, wherein contacting the liquid-containing sludge with the pyrolysis gas for heat exchange comprises:
    将所述含液油泥输送至罐体的进液口，将所述热解气输送至所述罐体的进气口，所述含液油泥与所述热解气在所述罐体中接触以进行热交换。The liquid-containing sludge is transported to the liquid inlet of the tank body, the pyrolysis gas is transported to the air inlet of the tank body, and the liquid-containing sludge and the pyrolysis gas are in contact in the tank body for heat exchange.
  5. 根据权利要求4所述的方法，其中，所述罐体内设置有喷淋器，所述喷淋器与所述进液口连通，通过所述喷淋器向所述热解气喷淋所述含液油泥，以使所述含液油泥与所述热解气接触进行热交换。The method according to claim 4, wherein a sprayer is provided in the tank, the sprayer communicates with the liquid inlet, and the pyrolysis gas is sprayed with the sprayer through the sprayer. liquid-containing sludge, so that the liquid-containing sludge is contacted with the pyrolysis gas for heat exchange.
  6. 根据权利要求4或5所述的方法，其中，在将所述含液油泥输送至所述进液口的过程中，采用增压泵和液相调节阀中的至少之一调节所述含液油泥的流量。The method according to claim 4 or 5, wherein during the process of delivering the liquid-containing sludge to the liquid inlet, at least one of a booster pump and a liquid-phase regulating valve is used to adjust the liquid-containing sludge Sludge flow.
  7. 根据权利要求6所述的方法，其中，The method of claim 6, wherein,
    所述罐体还包括用于排出所述油水蒸气的排气口，在从所述排气口排出所述油水蒸气的输送通道中设置有温度变送器，所述方法还包括：The tank body further includes an exhaust port for discharging the oil and water vapor, a temperature transmitter is arranged in the conveying channel for discharging the oil and water vapor from the exhaust port, and the method further includes:
    通过所述温度变送器和所述液相调节阀联锁控制，将所述油水蒸气的温度控制在100℃～200℃。Through the interlocking control of the temperature transmitter and the liquid phase regulating valve, the temperature of the oil and water vapor is controlled at 100°C to 200°C.
  8. 根据权利要求1-7任一项所述的方法，还包括：The method according to any one of claims 1-7, further comprising:
    将所述油水蒸气进行冷凝处理以得到油水混合物和不凝气体；Condensing the oil-water vapor to obtain an oil-water mixture and a non-condensable gas;
    将所述油水混合物进行油水分离以得到轻质油和含油废水；以及subjecting the oil-water mixture to oil-water separation to obtain light oil and oily wastewater; and
    将所述不凝气体进行收集。The non-condensable gas is collected.
  9. 根据权利要求1-8任一项所述的方法，还包括：The method according to any one of claims 1-8, further comprising:
    将所述含固油相进行沉降分离以得到重质油和含油固相。The solid-containing oil phase is subjected to sedimentation separation to obtain heavy oil and an oil-containing solid phase.
  10. 一种热解气冷凝协同处理含液油泥的装置，包括：A device for co-processing liquid sludge with pyrolysis gas condensation, comprising:
    第一罐体，包括第一进液口和第一进气口；a first tank body, including a first liquid inlet and a first air inlet;
    第一管路，与含液油泥源连通并延伸至所述第一进液口；a first pipeline, communicating with the liquid-containing sludge source and extending to the first liquid inlet;
    第二管路，与热解气源连通并延伸至所述第一进气口；a second pipeline, communicated with the pyrolysis gas source and extended to the first air inlet;
    其中，所述第一管路配置为将从所述含液油泥源得到的含液油泥传送至所述第一进液口，所述第二管路配置为将从所述热解气源得到的热解气传送至所述第一进气口，所述含液油泥和所述热解气在所述第一罐体中接触以进行热交换。Wherein, the first pipeline is configured to transmit the liquid-containing sludge obtained from the liquid-containing sludge source to the first liquid inlet, and the second pipeline is configured to obtain the liquid-containing sludge from the pyrolysis gas source. The pyrolysis gas is sent to the first air inlet, and the liquid-containing sludge and the pyrolysis gas are contacted in the first tank for heat exchange.
  11. 根据权利要求10所述的热解气冷凝协同处理含液油泥的装置，还包括：设置在所述第一管路上的增压泵和设置在所述增压泵和所述第一进液口之间的液相调节阀。The device for co-processing liquid sludge with pyrolysis gas condensation according to claim 10, further comprising: a booster pump arranged on the first pipeline and a booster pump arranged on the booster pump and the first liquid inlet between the liquid phase regulating valve.
  12. 根据权利要求10或11所述的热解气冷凝协同处理含液油泥的装置，还包括设置在所述第一罐体中的喷淋器，其中，所述喷淋器与所述第一进液口相连通，所述第一进液口和所述喷淋器在所述第一罐体的上部，所述第一进气口在所述第一罐体的下部。The device for co-processing liquid-containing sludge by pyrolysis gas condensation according to claim 10 or 11, further comprising a sprayer arranged in the first tank, wherein the sprayer and the first feeder The liquid ports communicate with each other, the first liquid inlet and the shower are at the upper part of the first tank body, and the first air inlet is at the lower part of the first tank body.
  13. 根据权利要求12所述的热解气冷凝协同处理含液油泥的装置，其中，所述喷淋器包括多个喷淋头，所述多个喷淋头排列成一排或者多排。The apparatus for co-processing liquid sludge by pyrolysis gas condensation according to claim 12, wherein the shower comprises a plurality of shower heads, and the plurality of shower heads are arranged in one or more rows.
  14. 根据权利要求12或13所述的热解气冷凝协同处理含液油泥的装置，还包括与保护气体源连通的第三管路，其中，所述第一罐体还包括位于其顶部的第二进气口，所述第三管路延伸至所述第二进气口。The device for co-processing liquid-containing sludge by pyrolysis gas condensation according to claim 12 or 13, further comprising a third pipeline communicated with the protective gas source, wherein the first tank further comprises a second tank located at the top thereof an air inlet, and the third pipeline extends to the second air inlet.
  15. 根据权利要求14所述的热解气冷凝协同处理含液油泥的装置，其中，所述第二进气口连通至所述喷淋器与所述第一进液口之间，使得所述保护气体和所述含液油泥混合后被输送至所述喷淋器。The device for co-processing liquid sludge with pyrolysis gas condensation according to claim 14, wherein the second air inlet is communicated between the sprayer and the first liquid inlet, so that the protection The gas is mixed with the liquid sludge and sent to the sprayer.
  16. 根据权利要求10-15任一项所述的热解气冷凝协同处理含液油泥的装置，还包括冷凝器，其中，所述第一罐体包括设置在其顶部的第一排气口，所述冷凝器包括第二罐体，所述第二罐体包括第三进气口，所述第一排气口与所述第三进气口连接。The device for co-processing liquid-containing sludge by pyrolysis gas condensation according to any one of claims 10-15, further comprising a condenser, wherein the first tank body includes a first exhaust port arranged at the top thereof, so The condenser includes a second tank body, the second tank body includes a third air inlet, and the first exhaust port is connected to the third air inlet.
  17. 根据权利要求16所述的热解气冷凝协同处理含液油泥的装置，其中，在所述第一排气口与所述第三进气口连接的管路上设置有温度变送器，所述液相调节阀和所述温度变送器联锁控制，将从所述第一排气口排出的油 水蒸气的温度控制在100℃-200℃。The device for co-processing liquid sludge with pyrolysis gas condensation according to claim 16, wherein a temperature transmitter is provided on the pipeline connecting the first exhaust port and the third intake port, and the The liquid phase regulating valve and the temperature transmitter are interlocked and controlled, and the temperature of the oil and water vapor discharged from the first exhaust port is controlled at 100°C-200°C.
  18. 根据权利要求17所述的热解气冷凝协同处理含液油泥的装置，其中，所述冷凝器还包括油水分离器，所述第二罐体包括设置在其底部的第一排液口，所述油水分离器包括设置在其顶部的第二进液口，所述第一排液口和所述第二进液口连通。The device for co-processing liquid-containing sludge by pyrolysis gas condensation according to claim 17, wherein the condenser further comprises an oil-water separator, and the second tank body comprises a first liquid discharge port arranged at the bottom thereof, so that the The oil-water separator includes a second liquid inlet arranged on the top thereof, and the first liquid outlet communicates with the second liquid inlet.
  19. 根据权利要求16-18任一项所述的热解气冷凝协同处理含液油泥的装置，还包括油分离器，其中，所述第一罐体还包括设置在其底部的第二排液口，所述油分离器包括第三进液口，所述第二排液口和所述第三进液口连通。The device for co-processing liquid sludge with pyrolysis gas condensation according to any one of claims 16-18, further comprising an oil separator, wherein the first tank body further comprises a second liquid discharge port arranged at the bottom thereof , the oil separator includes a third liquid inlet, and the second liquid outlet communicates with the third liquid inlet.
PCT/CN2021/072363 2020-12-31 2021-01-18 Apparatus and method for synergistic treatment of liquid-containing oil sludge by pyrolysis gas condensation WO2022141677A1 (en)

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