CN108531207B - Oil-containing pollutant treatment method and device by utilizing indirect heating of heat conduction oil - Google Patents
Oil-containing pollutant treatment method and device by utilizing indirect heating of heat conduction oil Download PDFInfo
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- CN108531207B CN108531207B CN201810630658.9A CN201810630658A CN108531207B CN 108531207 B CN108531207 B CN 108531207B CN 201810630658 A CN201810630658 A CN 201810630658A CN 108531207 B CN108531207 B CN 108531207B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 48
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 37
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003795 desorption Methods 0.000 claims abstract description 47
- 238000005406 washing Methods 0.000 claims abstract description 27
- 238000000889 atomisation Methods 0.000 claims abstract description 25
- 238000002425 crystallisation Methods 0.000 claims abstract description 23
- 230000008025 crystallization Effects 0.000 claims abstract description 23
- 238000009833 condensation Methods 0.000 claims abstract description 18
- 230000005494 condensation Effects 0.000 claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 151
- 239000007789 gas Substances 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 238000005057 refrigeration Methods 0.000 claims description 51
- 238000003756 stirring Methods 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 21
- 239000002351 wastewater Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 14
- 239000012634 fragment Substances 0.000 claims description 13
- 238000009736 wetting Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000010802 sludge Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 241000549548 Fraxinus uhdei Species 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000003672 processing method Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 3
- 239000011464 hollow brick Substances 0.000 abstract description 3
- -1 floor tiles Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 18
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000004927 fusion Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- 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
-
- 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
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4081—Recycling aspects
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/44—Solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a method and a device for treating oily pollutants by utilizing indirect heating of heat conduction oil, which relate to the technical field of oily pollutant treatment and comprise five steps of crushing, heat washing, thermal desorption, oil gas treatment and ash treatment, wherein the method comprises the steps of crushing and heat washing the pollutants in advance, then carrying out thermal desorption treatment on the primarily deoiled solid pollutants, and carrying out heat exchange by using heat conduction oil heated by a heating furnace as a medium by a thermal desorption device to heat the oily pollutants in an anaerobic way so as to volatilize or separate the pollutants from a pollution medium, thereby realizing the ultra-clean treatment of the oily pollutants; the waste oil and waste residue of the device can be used as raw materials of the heating furnace, so that the running cost is reduced; the oil gas treated by the thermal desorption device enters a subsequent gas treatment system, is further separated, condensed, filtered and separated, and the treated ash slag is subjected to atomization, condensation and crystallization treatment, so that the treated ash slag can be used as an excellent raw material of building materials such as floor tiles, hollow bricks and the like, and meanwhile, solid particles and dust pollution are avoided.
Description
Technical Field
The invention relates to the technical field of oil-containing pollutant treatment, in particular to an oil-containing pollutant treatment method and device by utilizing heat conduction oil to indirectly heat.
Background
At present, an oil-containing pollutant is a solid-liquid mixed waste rich in mineral oil, which is generated in petroleum exploration, exploitation, storage and refining processes. Whether the oil-containing pollutant enters soil or sea or lake, the oil-containing pollutant can cause serious pollution to ecological environment or water source, and effective and sustainable treatment is urgently needed. Although thermal desorption techniques for treating contaminants have been practiced worldwide, the following problems remain: the equipment has low applicability and high running cost, the knowledge of different pollutants is insufficient, the process device utilizes improper parameters to cause the generation of other byproducts, and the problems of difficult control of new pollution sources such as noise, dust emission, dust pollution and the like in soil remediation engineering are solved.
Disclosure of Invention
The invention provides a method and a device for treating oily pollutants by utilizing indirect heating of heat conduction oil.
The invention relates to a method for treating oily pollutants by utilizing indirect heating of heat conduction oil, which comprises the following steps:
a. Crushing: crushing the massive oily pollutants into fragments A, wherein the fragments A have the particle size of 10-40 mm;
b. And (3) hot washing: c, putting the fragments A obtained in the step a into water at 60 ℃ and stirring for 10-20 min, wherein the mass ratio of the fragments A to the water is 1:10-20, separating oil, water and oil sludge B, and delivering the obtained oil outwards, and refluxing the water for continuous recycling;
c. Thermal desorption: preheating the oil sludge B obtained in the step B by using heat conduction oil at 100-200 ℃, then heating to 400 ℃ by negative pressure rotation, continuously rotating for 1-2 hours at the speed of 10 revolutions per minute, and controlling the pressure at-150 KPa to 50KPa to obtain oil gas C and ash slag D;
d. Oil gas treatment: c, after removing solids, cooling and liquefying the oil gas C obtained in the step 300-350 ℃ to separate water and heavy oil for external transportation;
e. ash treatment: c, carrying out atomization crystallization treatment on the ash residue D obtained in the step c, wherein the atomization temperature is 100-150 ℃, the wetting liquid is water, the spraying amount is 2-5 m 3/h, and the stirring is carried out for about 0.5-2 hours to obtain crystal particles for secondary use.
The invention relates to an oily pollutant treatment device indirectly heated by heat conduction oil, which consists of a crusher, a thermal desorption device and a separation device, wherein the outlet end of the crusher is connected with a spiral conveyer, the spiral conveyer is connected with an inlet end pipeline of a thermal washing device, the solid-liquid discharge end of the thermal washing device is connected with a solid-liquid separator, the liquid outlet end of the solid-liquid separator is connected with the thermal desorption device, the solid-liquid discharge end of the solid-liquid separator is connected with the inlet end pipeline of the thermal desorption device, the oil phase outlet of the thermal washing device is connected with a 1# oil storage tank pipeline, the outer transmission pipeline of the 1# oil storage tank is provided with a 1# outer oil transmission pump, the temperature circulation pipeline of the thermal desorption device is provided with a heating furnace, the solid outlet end of the thermal desorption device is connected with a closed cooling conveyer, the cooling medium inlet pipeline of the closed cooling conveyer is connected with a 2# condensing fan, the slag outlet of the closed cooling conveyer is connected with an atomization mixing crystallization device, the outlet end of the atomization mixing crystallization device is opposite to a receiving hopper, the gas outlet end pipeline of the thermal washing device is connected with a gas filter, the outlet end of the gas filter is connected with an oil-gas condenser, the cooling medium inlet pipeline of the oil-gas condenser is connected with the 1# condensing fan, the oil-phase outlet of the oil-gas condenser is connected with the oil-phase condenser is connected with the waste water pump, the waste water pump is connected with the waste water pump through the waste water pump, the waste water pump is connected with the waste water pump, the waste water tank is connected with the waste water tank, the waste water tank and the waste water tank, and the external transmission pipelines of the No. 2 oil storage tank and the No. 3 oil storage tank are respectively provided with a No. 3 external transmission pump and a No. 2 external transmission pump.
As a further improvement of the invention, the thermal desorption device is composed of a shell and a rotary drum, the rotary drum passes through two ends of the shell and is movably connected with the shell, a diameter-variable main shaft rotary drum is arranged in the shell, a feeding pipe is arranged at one end of the diameter-variable main shaft rotary drum, a feeding end sealing cover is arranged on the feeding pipe, a rotary drum main shaft big gear ring, a rotary drum main shaft supporting limit rolling ring and a riding wheel group are fixed on the side wall of the feeding end of the diameter-variable main shaft rotary drum, the rotary drum main shaft big gear ring is in transmission connection with a rotary drum main shaft driving motor, and the rotary drum main shaft supporting limit rolling ring and the riding wheel group are fixed on the ground through a bracket; a discharge end fan is arranged at the other end of the diameter-variable main shaft rotary drum, a detection and observation hole, a temperature sensor in the rotary drum and an oil gas outlet hole are sequentially arranged at the upper part of the discharge end fan, an explosion-proof device is arranged at the top end of the oil gas outlet hole, an oil gas outlet temperature sensor and an oil gas outlet pressure detection sensor are respectively arranged at two sides of the oil gas outlet hole, a rotary drum main shaft supporting ring and a supporting wheel group are fixed on the side wall of the discharge end of the diameter-variable main shaft rotary drum, and the rotary drum main shaft supporting ring and the supporting wheel group are fixed on the ground through a bracket; the top of the shell is provided with a heat conducting oil outlet and a heat conducting oil inlet, the heat conducting oil outlet is connected with an outlet of a heating furnace medium heating pipeline, and the heat conducting oil inlet is connected with an inlet of the heating furnace medium heating pipeline.
As a further improvement of the invention, the atomization mixing crystallization device comprises a heat exchange box, a refrigeration box and a refrigeration box shell, wherein the bottom end of the heat exchange box is arranged at the top end of the refrigeration box shell, the refrigeration box is arranged in the refrigeration box shell, the upper part and the lower part of the heat exchange box are respectively provided with a water outlet and a water inlet, an infusion coil pipe is arranged in the heat exchange box, and the liquid outlet end of the infusion coil pipe extends into the refrigeration box and is connected with an atomization sprayer; the top end of the shell of the refrigeration box is provided with an ash feeding port, the discharge end of the ash feeding port is communicated with the interior of the refrigeration box, the side wall of the shell of the refrigeration box is provided with two transmission gears, the gears of the two transmission gears are meshed with each other, one transmission gear is connected with the output shaft of the driving motor through a connecting shaft, the two transmission gears are connected with a stirring shaft through a coupler, the coupler is positioned in the refrigeration box, the stirring shafts penetrate into the refrigeration box, each stirring shaft is provided with stirring blades, and the positions of the stirring blades on the two stirring shafts are staggered; a cavity is formed between the refrigeration box shell and the refrigeration box, a condensation pipe is arranged in the cavity, and the condensation pipe is coiled on the outer wall of the refrigeration box; the bottom plate of the refrigerating box is inclined, the bottom of the refrigerating box is provided with a discharge hole, and a valve is arranged on the discharge hole.
As a further improvement of the invention, the intelligent DCS automatic control system further comprises a wireless transmission module and a display which are arranged in the intelligent DCS automatic control system, wherein the intelligent DCS automatic control system is respectively connected with a screw conveyor, a crusher, a hot washing device, a No. 1 oil product storage tank, a heating furnace, a No. 1 external oil conveying pump, a thermal desorption device, a gas filter, an oil-water two-phase separator, a non-condensable air booster fan, an oil-gas condenser, a No. 1 condensing fan, an oil-gas refrigerator, a condensing separator, an active carbon filter, a No. 2 external oil conveying pump, a No. 3 external oil conveying pump, an external water conveying pump, a closed cooling conveyor, an atomization mixing crystallization device and a No. 2 condensing fan in a circuit.
The method and the device for treating the oily pollutants by utilizing the indirect heating of the heat conduction oil have reasonable process flow setting and parameter design, are suitable for various oil-containing pollutant materials which can be cracked, and have strong applicability; crushing and hot washing oily pollutants in advance, and carrying out preliminary oil phase separation on the pollutants; then carrying out thermal desorption treatment on the solid pollutants subjected to preliminary degreasing, wherein the thermal desorption device uses heat conduction oil heated by a heating furnace as a medium to carry out heat exchange, the oil-containing pollutants are subjected to anaerobic heating so as to volatilize or separate the pollutants from a pollution medium, the temperature is controllable, and the coking in a cracker is effectively avoided, so that the heat exchange efficiency is improved, the cracking speed is accelerated, the heating temperature is reduced, the safety is improved, the energy consumption is saved, the service life of equipment is greatly prolonged, meanwhile, the thermal desorption can be used for selectively converting the pollutants from one phase to the other phase in a mode of adjusting the heating temperature, the residence time and the like, the destructive effect on the organic pollutants does not occur in the repairing process, the generation of harmful gases is obviously reduced in a low-temperature combustion treatment mode, and the ultra-clean treatment of the oil-containing pollutants is realized; the waste oil and waste residue of the device can be used as raw materials of the heating furnace, so that the operation cost is greatly reduced; the oil gas treated by the thermal desorption device enters a subsequent gas treatment system, is further separated, condensed, filtered and separated, and the treated ash slag is subjected to atomization, condensation and crystallization treatment, so that the treated ash slag can be used as an excellent raw material of building materials such as floor tiles, hollow bricks and the like, and meanwhile, solid particles and dust pollution are avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a thermal desorption apparatus according to the present invention;
FIG. 3 is a schematic diagram of an atomization mixing crystallization device according to the present invention.
Detailed Description
Example 1
The invention relates to a method for treating oily pollutants by utilizing indirect heating of heat conduction oil, which comprises the following steps:
a. Crushing: breaking the massive oily pollutants into fragments A, wherein the fragments A have the particle size of 10mm or 20mm or 40mm;
b. and (3) hot washing: b, putting the fragments A obtained in the step a into water at 60 ℃ and stirring for 10min, 15min or 20min, wherein the mass ratio of the fragments A to the water is 1:10, 1:15 or 1:20, separating oil, water and oil sludge B, and conveying the obtained oil outwards, and refluxing the water for continuous recycling;
c. Thermal desorption: preheating the oil sludge B obtained in the step B by using heat conduction oil at 100 ℃ or 150 ℃ or 200 ℃, then heating to 400 ℃ by negative pressure rotation, continuing to rotate for 1 or 2 hours at the speed of 10 revolutions per minute, and controlling the pressure at-150 KPa to obtain oil gas C and ash D;
d. oil gas treatment: c, after removing solids, cooling and liquefying the oil gas C obtained in the step C at 300 ℃ or 330 ℃ or 350 ℃ to separate water and heavy oil for output;
e. Ash treatment: c, carrying out atomization crystallization treatment on the ash residue D obtained in the step c, wherein the atomization temperature is 100 ℃ or 120 ℃ or 150 ℃, the wetting liquid is water, the spraying amount is 2m 3/h or 4m 3/h or 5m 3/h, and the mixture is stirred for about 0.5 hour or 1 hour or 2 hours to obtain the secondary utilization of crystal particles.
Example 2
As shown in figure 1, the oily pollutant treatment device indirectly heated by using heat conduction oil is composed of a crusher 2, a thermal desorption device 8 and a separation device, wherein the outlet end of the crusher 2 is connected with a spiral conveyor 1, the spiral conveyor 1 is connected with the inlet end of a hot washing device 4 through a pipeline, materials are crushed by the crusher 2 and then conveyed to the hot washing device 4 in a spiral manner, the hot washing device 4 utilizes high temperature to carry out primary separation on oil in oily sludge, a heating device, a stirring device and a medicine adding device are arranged in the hot washing device 4, and the heating device heats raw materials to promote oil phase separation; adding a certain amount of water into the tank body, facilitating stirring, adding demulsifier and flocculant by using a dosing device, further promoting oil phase separation, enabling separated oil to enter a No. 1 oil storage tank 5, pumping out after a certain liquid level is reached, connecting a solid-liquid discharge end of a heat washing device 4 with a solid-liquid separator 3, connecting a liquid outlet end of the solid-liquid separator 3 with the heat washing device 4, enabling the water phase to return to the inside of the heat washing device 4 for continuous auxiliary stirring, connecting a solid discharge end of the solid-liquid separator 3 with an inlet end pipeline of a heat desorption device 8, and further processing; the crusher 2 combines the functions of stirring, cutting and the like to jointly crush the sludge; meanwhile, a reciprocating sieve is arranged at the outlet to sieve sundries such as stones with the grain diameter larger than 30mm, the self-cleaning cabin function of the inner wall is provided, and an inner side cutter is arranged on the blade to clean the oil sludge adhered on the inner wall, so that the motor is prevented from being damaged due to overlarge load; the crusher 2 has small occupied area, high treatment speed, high efficiency, less influence of viscosity and stable treatment quality; the oil-containing sludge is conveyed into a heat washing device 4 through a screw, the liquid in the box body is heated to 60 ℃ through an electric heating tube, an insulating layer is arranged on the outer side of the box body, oil, water and mud are separated through stirring of a propeller type stirrer for 10 minutes, crude oil floating on the uppermost layer is discharged through an oil collecting device, a mud-water mixture is discharged from the lower part to a centrifugal machine for water and mud separation, and the mud-water mixture is conveyed to a thermal desorption device 8 through a conveyor; the solid-liquid discharging end of the thermal washing device 4 is connected with the inlet end pipeline of the thermal desorption device 8, the oil phase outlet of the thermal washing device 4 is connected with the pipeline of the No. 1 oil storage tank 5, the external pipeline of the No. 1 oil storage tank 5 is provided with the No. 1 external oil delivery pump 7, the temperature circulation pipeline of the thermal desorption device 8 is provided with the heating furnace 6, the inside of the heating furnace 6 is of a shell structure, a heating coil in the heating furnace is internally provided with heat transfer medium heat transfer oil, the shell is a heating area, the raw material of the shell is oil diesel or separated heavy oil and noncondensable gas, the operation cost is greatly reduced, the heating furnace heats the heat transfer oil to 100 ℃, the preheating material simultaneously separates out partial water and heavy hydrocarbon, and continuously heats the mixture to 400 ℃ to separate out light hydrocarbon and noncondensable gas, ash is discharged, and the whole operation is operated in a negative pressure state; the total petroleum hydrocarbon content TPH of the solid phase residue after thermal desorption treatment is less than 3 per mill; the solid outlet end of the thermal desorption device 8 is connected with a closed cooling conveyor 23, a pipeline at the cooling medium inlet of the closed cooling conveyor 23 is connected with a No. 2 condensing fan 25, the slag outlet of the closed cooling conveyor 23 is connected with an atomization mixing crystallization device 24, ash slag after passing through the thermal desorption device 8 enters the closed cooling conveyor 23, the closed cooling conveyor 23 adopts an air cooling mode and is conveyed to the atomization mixing crystallization device 24, the ash slag is condensed and crystallized under the spraying of wetting liquid and is uniformly stirred and then conveyed to a hopper for external conveying, and the treated crystallized particles are excellent raw materials for various building materials such as floor bricks, hollow bricks and the like; the outlet end of the atomization mixing crystallization device 24 is opposite to the receiving hopper 26, the gas outlet end pipeline of the thermal desorption device 8 is connected with the gas filter 9, ash slag carried by gas is filtered, the outlet end of the gas filter 9 is connected with the oil-gas condenser 12, the pipeline at the cooling medium inlet of the oil-gas condenser 12 is connected with the No. 1 condensing fan 13, the outlet end of the oil-gas condenser 12 is connected with the oil-water two-phase separator 10, the waste water end of the oil-water two-phase separator 10 is connected with the waste water tank 21, the oil phase outlet end is connected with the No. 3 oil storage tank 20, the gas phase outlet end is connected with the condensing separator 15 through the non-condensable gas booster fan 11, the external water pump 22 is arranged on the external transmission pipeline of the waste water tank 21, the condensing circulation pipeline of the condensing separator 15 is provided with an oil-gas refrigerator 14, the non-condensable gas outlet of the condensing separator 15 is connected with an activated carbon filter 16, the oil phase outlet of the condensing separator 15 is connected with a No. 2 oil storage tank 17, the outer transmission pipelines of the No. 2 oil storage tank 17 and the No. 3 oil storage tank 20 are respectively provided with a No. 3 outer oil transmission pump 19 and a No. 2 outer oil transmission pump 18, under the action of a booster fan 11, oil is separated out and transported outwards after passing through the oil-gas refrigerator 14 and the condensing separator 15, and gas is discharged outwards after being filtered.
The thermal desorption device 8 is composed of a shell 34 and a rotary drum, wherein the rotary drum passes through two ends of the shell 34 and is movably connected with the shell, a diameter-variable main shaft rotary drum 41 is arranged in the shell 34, a temperature sensor 58 is arranged in the diameter-variable main shaft rotary drum 41, the temperature sensor 58 is fixed on the wall of the diameter-variable main shaft rotary drum 41, a feed pipe 28 is arranged at one end of the diameter-variable main shaft rotary drum 41, a feed end sealing cover 30 is arranged on the feed pipe 28, a rotary drum main shaft large gear ring 31 and a rotary drum main shaft supporting limit roller ring and a supporting roller group 32 are fixed on the side wall of the feed end of the diameter-variable main shaft rotary drum 41, the rotary drum main shaft large gear ring 31 is in transmission connection with a rotary drum main shaft driving motor 29, and the rotary drum main shaft supporting limit roller and the supporting roller group 32 are fixed on the ground through a bracket; the other end of the variable-diameter main shaft rotary drum 41 is provided with a discharge end fan 57, the upper part of the discharge end fan 57 is provided with a detection and observation hole 56, a nitrogen air inlet pipe 38 and an oil gas outlet hole 40 in sequence, the nitrogen air inlet pipe 38 extends to the inside of the variable-diameter main shaft rotary drum 41, the top end of the oil gas outlet hole 40 is provided with an explosion-proof device 39, two sides of the oil gas outlet hole 40 are respectively provided with an oil gas outlet temperature sensor and an oil gas outlet pressure detection sensor, the side wall of the discharge end of the variable-diameter main shaft rotary drum 41 is fixed with a rotary drum main shaft supporting roller ring and a riding wheel group 37, and the rotary drum main shaft supporting roller ring and the riding wheel group 37 are fixed on the ground through a bracket; the top of the shell 34 is provided with a heat conducting oil outlet 35 and a heat conducting oil inlet 36, the heat conducting oil is used as a heat exchange medium, enters the shell 34, is connected with the outer wall of the diameter-variable main shaft rotary drum 41, and further heats the oil-containing sludge fragments in the diameter-variable main shaft rotary drum 41 at high temperature, the heat conducting oil enters the shell 34 through the heat conducting oil inlet 36, flows out of the heat conducting oil outlet 35 after being cooled, enters the heating furnace 6, is output from the outlet end of the heating furnace 6 after being heated and warmed, enters the shell 34 through the heat conducting oil inlet 36, the heat conducting oil outlet 35 is connected with the outlet of a medium heating pipeline of the heating furnace 6, and the heat conducting oil inlet 36 is connected with the inlet of the medium heating pipeline of the heating furnace 6.
The invention discloses an oily pollutant ultra-clean treatment thermal desorption device indirectly heated by heat conducting oil, which adopts a continuous feeding and discharging airtight high Wen Jue oxygen technology, the oily pollutant undergoes high-temperature anaerobic reaction at 400-700 ℃ in a diameter-variable main shaft rotary drum, organic matters such as oil, water or polycyclic aromatic hydrocarbon are subjected to phase change vaporization and are separated from solids, the total petroleum hydrocarbon TPH of solid phase residues after thermal desorption treatment is less than 0.5 per mill, ultra-clean treatment is realized, oil phase and water phase are recovered by condensing treatment, and non-condensable environment is protected and recovered for burning.
The oil-containing pollutant enters the reducing main shaft rotary drum 41 from the feed pipe 28, the rotary drum main shaft driving motor 29 drives the pinion to drive the rotary drum main shaft big gear ring 31, the rotary drum main shaft supporting limit rollers and the supporting roller group 32 are arranged outside the reducing main shaft rotary drum 41, the rotary drum main shaft supporting limit rollers and the supporting roller group 32, the rotary drum main shaft supporting rollers and the supporting roller group 32 jointly ensure concentricity of the reducing main shaft rotary drum 41, and the auxiliary reducing main shaft rotary drum 41 is limited to transfer.
A feed end sealing cover 30 is arranged between the feed pipe 28 and the large gear ring 31 of the main shaft, and the feed end sealing cover 30 and the discharge end sealing cover 30 are sealed together to ensure the anaerobic sealing of the main shaft of the reducing main shaft 41. The diameter-variable spindle drum 41 adopts an outer lower heating mode, and is provided with a heat-insulating layer around the periphery thereof, and the heat-insulating layer is provided with a shell 34. The upper part of the housing 34 is provided with a heat conducting oil outlet 35 and a heat conducting oil inlet 36.
A detection and observation hole 56 for detecting and observing the internal condition of the diameter-variable spindle drum is sequentially arranged at the upper part of the discharge end fan 57; the nitrogen air inlet pipe 38 extends to the inside of the diameter-variable main shaft rotary drum 41, provides an anaerobic environment for the inside of the diameter-variable main shaft rotary drum 41, shortens the thermal desorption process, improves the thermal desorption efficiency, and the nitrogen enters the diameter-variable main shaft rotary drum 41 from the air inlet pipe 38 and is discharged from the oil gas outlet hole 40; and a hydrocarbon outlet 40 for discharging hydrocarbon. An explosion-proof device 39 for protecting the safety of the diameter-variable main shaft rotary drum is designed and installed at the upper part of the oil gas outlet 40. An oil gas outlet temperature sensor and an oil gas outlet pressure detection sensor are respectively installed at the left side and the right side of the oil gas outlet 40, and are used for detecting the temperature and pressure change condition of the oil gas outlet 40.
The atomization mixing crystallization device 24 comprises a heat exchange box 42, a refrigeration box 43 and a refrigeration box shell 44, wherein the bottom end of the heat exchange box 42 is arranged at the top end of the refrigeration box shell 44, the refrigeration box 43 is arranged in the refrigeration box shell 44, a water outlet 45 and a water inlet 46 are respectively arranged at the upper part and the lower part of the heat exchange box 42, a transfusion coil 47 is arranged in the heat exchange box 42, and the liquid outlet end of the transfusion coil 47 extends into the refrigeration box 43 and is connected with an atomization sprayer 48; the top end of the refrigeration box shell 44 is provided with an ash feeding hole 49, the discharge end of the ash feeding hole 49 is communicated with the interior of the refrigeration box 43, the side wall of the refrigeration box shell 44 is provided with two transmission gears 50, the gears of the two transmission gears 50 are meshed with each other, one transmission gear 50 is connected with the output shaft of a driving motor 51 through a connecting shaft, the two transmission gears 50 are connected with a stirring shaft 52 through a coupler, the coupler is positioned in the refrigeration box 43, the stirring shaft 52 penetrates into the refrigeration box 43, each stirring shaft 52 is provided with a stirring blade 53, and the positions of the stirring blades 53 on the two stirring shafts 52 are staggered; a cavity is formed between the refrigeration box shell 44 and the refrigeration box 43, a condensation pipe 54 is arranged in the cavity, and the condensation pipe 54 is coiled on the outer wall of the refrigeration box 43; the bottom plate of the refrigeration box 43 is inclined, a discharge hole 55 is arranged at the bottom of the refrigeration box 43, and a valve is arranged on the discharge hole 55.
When the thermal desorption ash recovery treatment device is used, the heat exchange box 42 is filled with water through the water inlet, the wetting liquid is in the heat exchange box 42 through the infusion coil 47 for heat exchange, the water in the heat exchange box 42 absorbs a large amount of heat, the atomizing sprayer 48 sprays the wetting liquid into water in the refrigeration box 43 in a mist form, the ash after thermal desorption enters the refrigeration box 43 through the ash feed port 49, the wetting liquid is directly sprayed on the ash and fused with the ash, the condensation pipe 54 surrounding the outer wall of the refrigeration box 43 carries out refrigeration on the refrigeration box 43, the ash is condensed and crystallized after being adhered by the action of the condensation pipe, the driving motor 51 is started in the condensation and crystallization process, the driving motor drives the transmission gears 50 connected with the driving motor to work, the two transmission gears 50 work simultaneously by utilizing the mutual meshing of the gears, and the rotation directions are opposite, so that the stirring pump 52 connected with the transmission gears 50 rotates and drives the stirring blades 53 on the stirring shafts 52 to rotate, the positions of the stirring blades 53 on the two stirring shafts 52 are staggered, the rotation directions are opposite, the ash slag and the wetting liquid are uniformly fused through the action of stirring the ash slag, the speed of ash slag condensation crystallization is accelerated through the stirring of the stirring blades 53 on the basis of uniform fusion, after the ash slag condensation crystallization, the stirring of the ash slag is uniform through the stirring blades 53, then a valve is opened, and the crystallized ash slag is discharged through the discharge port 55 for utilization or discharge.
The device also comprises a DCS intelligent autonomous control system 27, wherein a wireless transmission module and a display are arranged in the DCS intelligent autonomous control system 27, and the DCS intelligent autonomous control system 27 is respectively in circuit connection with a screw conveyor 1, a crusher 2, a solid-liquid separator 3, a hot washing device 4, a No. 1 oil storage tank 5, a heating furnace 6, a No. 1 external oil delivery pump 7, a thermal desorption device 8, a gas filter 9, an oil-water two-phase separator 10, a non-condensable gas booster fan 11, an oil-gas condenser 12, a No. 1 condensing fan 13, an oil-gas refrigerator 14, a condensing separator 15, an active carbon filter 16, a No. 2 external oil delivery pump 18, a No. 3 external oil delivery pump 19, an external water delivery pump 22, a closed cooling conveyor 23, an atomization mixing crystallization device 24 and a No. 2 condensing fan 25; the intelligent PID autonomous operation, adjustment and control are realized by utilizing the pressure sensor, the temperature sensor, the flow dosimeter, the liquid level sensor and other intelligent sensors of the equipment such as the thermal desorption device 8, the heating furnace 6, the oil-water two-phase separator 10 and the like, and the intelligent operation management is realized. The DCS intelligent autonomous control system can remotely transmit operation data to terminal equipment such as a mobile phone, a tablet computer and the like in a wireless way through a 4G network, can check and monitor the operation condition of the equipment in real time, and can regulate and control the intelligent autonomous control system through the terminal equipment such as the mobile phone, the tablet computer and the like to realize wireless remote control.
Claims (2)
1. A treatment device for indirectly heating oily pollutants by utilizing heat conduction oil is composed of a crusher (2), a thermal desorption device (8) and a separation device, and is characterized in that the outlet end of the crusher (2) is connected with a screw conveyor (1), the screw conveyor (1) is connected with the inlet end of a thermal washing device (4) through a pipeline, the solid-liquid discharge end of the thermal washing device (4) is connected with a solid-liquid separator (3), the liquid outlet end of the solid-liquid separator (3) is connected with the thermal washing device (4), the solid discharge end of the solid-liquid separator (3) is connected with the inlet end pipeline of the thermal desorption device (8), the oil phase outlet of the thermal washing device (4) is connected with a No. 1 oil storage tank (5) through a pipeline, the external conveying pipeline of the No. 1 oil product storage tank (5) is provided with a No. 1 external conveying pump (7), the temperature circulating pipeline of the thermal desorption device (8) is provided with a heating furnace (6), the solid outlet end of the thermal desorption device (8) is connected with a closed cooling conveyor (23), the cooling medium inlet of the closed cooling conveyor (23) is connected with a No. 2 condensing fan (25), the slag outlet of the closed cooling conveyor (23) is connected with an atomization mixing crystallization device (24), and the outlet end of the atomization mixing crystallization device (24) is opposite to a receiving hopper (26); the oil gas outlet end pipeline of the thermal desorption device (8) is connected with a gas filter (9), the outlet end of the gas filter (9) is connected with an oil gas condenser (12), the cooling medium inlet pipeline of the oil gas condenser (12) is connected with a No. 1 condensing fan (13), the outlet end of the oil gas condenser (12) is connected with an oil-water two-phase separator (10), the waste water end of the oil-water two-phase separator (10) is connected with a waste water tank (21), the oil phase outlet end is connected with a No. 3 oil storage tank (20), the gas phase outlet end is connected with a condensing separator (15) through a non-condensable gas booster fan (11), the outer conveying pipeline of the waste water tank (21) is provided with an outer water conveying pump (22), an oil gas refrigerator (14) is arranged on a condensation circulation pipeline of the condensation separator (15), a non-condensable gas outlet of the condensation separator (15) is connected with an active carbon filter (16), an oil phase outlet of the condensation separator is connected with a No. 2 oil storage tank (17), and the outer transmission pipelines of the No. 2 oil storage tank (17) and the No. 3 oil storage tank (20) are respectively provided with a No. 2 outer oil transmission pump (18) and a No. 3 outer oil transmission pump (19); the atomization mixing crystallization device (24) comprises a heat exchange box (42), a refrigeration box (43) and a refrigeration box shell (44), wherein the bottom end of the heat exchange box (42) is arranged at the top end of the refrigeration box shell (44), the refrigeration box (43) is arranged in the refrigeration box shell (44), a water outlet (45) and a water inlet (46) are respectively arranged at the upper part and the lower part of the heat exchange box (42), an infusion coil (47) is arranged in the heat exchange box (42), and the liquid outlet end of the infusion coil (47) extends into the refrigeration box (43) and is connected with an atomization sprayer (48); the top end of the refrigeration box shell (44) is provided with an ash feeding hole (49), the discharging end of the ash feeding hole (49) is communicated with the interior of the refrigeration box (43), two transmission gears (50) are arranged on the side wall of the refrigeration box shell (44), the gears of the two transmission gears (50) are meshed with each other, one transmission gear (50) is connected with the output shaft of a driving motor (51) through a connecting shaft, the two transmission gears (50) are connected with a stirring shaft (52) through a coupling, the coupling is positioned in the refrigeration box (43), the stirring shaft (52) penetrates into the refrigeration box (43), stirring blades (53) are arranged on each stirring shaft (52), the positions of stirring blades (53) on the two stirring shafts (52) are staggered; a cavity is formed between the refrigeration box shell (44) and the refrigeration box (43), a condensation pipe (54) is arranged in the cavity, and the condensation pipe (54) is coiled on the outer wall of the refrigeration box (43); the bottom plate of the refrigeration box (43) is inclined, the bottom of the refrigeration box (43) is provided with a discharge hole (55), and a valve is arranged on the discharge hole (55); the thermal desorption device (8) is composed of a shell (34) and a rotary drum, the rotary drum passes through two ends of the shell (34) and is movably connected with the shell, a diameter-variable main shaft rotary drum (41) is arranged in the shell (34), a temperature sensor (58) is arranged in the diameter-variable main shaft rotary drum (41), a feeding pipe (28) is arranged at one end of the diameter-variable main shaft rotary drum (41), a feeding end sealing cover (30) is arranged on the feeding pipe (28), a rotary drum main shaft big gear ring (31) and a rotary drum main shaft supporting limit rolling ring and a supporting roller group (32) are fixed on the side wall of the feeding end of the diameter-variable main shaft rotary drum (41), the rotary drum main shaft big gear ring (31) is in transmission connection with a rotary drum main shaft driving motor (29), the main shaft of the rotary drum supports the limiting roller ring and the riding wheel group (32) is fixed on the ground through a bracket; the other end of the diameter-variable main shaft rotary drum (41) is provided with a discharge end fan (57), a detection and observation hole (56), a nitrogen air inlet pipe (38) and an oil gas outlet hole (40) are sequentially arranged at the upper part of the discharge end fan (57), the nitrogen air inlet pipe (38) extends to the inside of the diameter-variable main shaft rotary drum (41), the top end of the oil gas outlet hole (40) is provided with an explosion-proof device (39), two sides of the oil gas outlet hole (40) are respectively provided with an oil gas outlet temperature sensor and an oil gas outlet pressure detection sensor, a rotary drum main shaft supporting roller ring and a supporting roller group (37) are fixed on the side wall of the discharge end of the diameter-variable main shaft rotary drum (41), and the rotary drum main shaft supporting roller ring and the supporting roller group (37) are fixed on the ground through a bracket; the top of the shell (34) is provided with a heat conducting oil outlet (35) and a heat conducting oil inlet (36), the heat conducting oil outlet (35) is connected with the outlet of a medium heating pipeline of the heating furnace (6), and the heat conducting oil inlet (36) is connected with the inlet of the medium heating pipeline of the heating furnace (6);
the processing method comprises the following steps:
a. Crushing: crushing the massive oily pollutants into fragments A, wherein the fragments A have the particle size of 10-40 mm;
b. And (3) hot washing: c, putting the fragments A obtained in the step a into water at 60 ℃ and stirring for 10-20 min, wherein the mass ratio of the fragments A to the water is 1:10-20, separating oil, water and oil sludge B, and delivering the obtained oil outwards, and refluxing the water for continuous recycling;
c. Thermal desorption: preheating the oil sludge B obtained in the step B by using heat conduction oil at 100-200 ℃, then heating to 400 ℃ by negative pressure rotation, continuously rotating for 1-2 hours at the speed of 10 revolutions per minute, and controlling the pressure at-150 KPa to 50KPa to obtain oil gas C and ash slag D;
d. Oil gas treatment: c, after removing solids, cooling and liquefying the oil gas C obtained in the step 300-350 ℃ to separate water and heavy oil for external transportation;
e. Ash treatment: c, carrying out atomization crystallization treatment on the ash D obtained in the step, wherein the atomization temperature is 100-150 ℃, the wetting liquid is water, the spraying amount is 2-5 m 3/h, and stirring for 0.5-2 hours to obtain crystal particles for secondary use;
When the thermal desorption ash recovery treatment device is used, the heat exchange box (42) is filled with water through the water inlet, the wetting liquid is subjected to heat exchange in the heat exchange box (42) through the infusion coil pipe (47), the water in the heat exchange box (42) absorbs a large amount of heat, the wetting liquid of the atomizing sprayer (48) is water, the wetting liquid is sprayed in the cooling box (43) in a mist form, ash after thermal desorption enters the cooling box (43) through the ash feed inlet (49), the wetting liquid is directly sprayed on ash and is fused with ash, the cooling box (43) is cooled through the condensing tube (54) surrounded by the outer wall of the cooling box (43), the ash is condensed and crystallized after adhering to the wetting liquid, the driving motor (51) is started in the process of condensation and crystallization, the driving motor drives the transmission gears (50) connected with the cooling box, the two transmission gears (50) are meshed with each other, and the two transmission gears (50) are simultaneously operated, and the rotation directions are opposite, so that a stirring shaft (52) connected with the transmission gears (50) rotates, stirring blades (53) on the stirring shaft rotates, the ash is driven to rotate, the ash is stirred through the stirring blades (53), the stirring blades (53) to be evenly discharged through the stirring blades, the cooling blades (53) after the cooling blades are evenly, the cooling blades are stirred, and the cooling crystals are discharged, and the cooling blades are evenly discharged through the cooling blades (53) through the stirring blades.
2. The device for treating oily pollutants by utilizing indirect heating of heat conduction oil according to claim 1 is characterized by further comprising a DCS intelligent autonomous control system (27), wherein a wireless transmission module and a display are arranged inside the DCS intelligent autonomous control system (27), and the DCS intelligent autonomous control system (27) is respectively in circuit connection with a screw conveyor (1), a crusher (2), a solid-liquid separator (3), a heat washing device (4), a 1# oil product storage tank (5), a heating furnace (6), a 1# outer oil conveying pump (7), a thermal desorption device (8), a gas filter (9), an oil-water two-phase separator (10), a non-condensable gas booster fan (11), an oil-gas condenser (12), a 1# condensing fan (13), an oil-gas refrigerator (14), a condensing separator (15), an active carbon filter (16), a 2# outer oil conveying pump (18), a 3# outer oil conveying pump (19), an outer water conveying pump (22), a closed cooling conveyor (23), an atomization mixing crystallization device (24) and a 2# condensing fan (25).
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| CN110590087B (en) * | 2019-07-24 | 2022-07-01 | 中国石油大学(华东) | Treatment method of oily sludge |
| CN110329733A (en) * | 2019-07-25 | 2019-10-15 | 北京高能时代环境技术股份有限公司 | The cooling dust suppression automation equipment of thermal desorption discharging |
| CN112934491B (en) * | 2021-01-29 | 2022-05-24 | 塔里木大学 | Separation device for producing oil from walnut endophytic bacterium HB1310 fermentation cotton stalk hydrolysis sugar liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399294A (en) * | 2016-01-01 | 2016-03-16 | 山东拓普石油装备有限公司 | Recycling and harmless treating process for oily sludge and sand |
| CN106430893A (en) * | 2016-11-03 | 2017-02-22 | 江苏保瑞工业水处理有限公司 | Oil sludge resourceful treatment system |
| CN208430097U (en) * | 2018-06-19 | 2019-01-25 | 大庆高新区百世环保科技开发有限公司 | A kind of oily sludge object processing unit using conduction oil indirect heating |
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| CN106746417A (en) * | 2017-01-25 | 2017-05-31 | 浙江宜可欧环保科技有限公司 | A kind of processing unit of oil-base mud |
| CN107265801A (en) * | 2017-07-03 | 2017-10-20 | 甘肃新鑫能源工程有限公司 | Land the process of mud in a kind of processing oil field |
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| CN105399294A (en) * | 2016-01-01 | 2016-03-16 | 山东拓普石油装备有限公司 | Recycling and harmless treating process for oily sludge and sand |
| CN106430893A (en) * | 2016-11-03 | 2017-02-22 | 江苏保瑞工业水处理有限公司 | Oil sludge resourceful treatment system |
| CN208430097U (en) * | 2018-06-19 | 2019-01-25 | 大庆高新区百世环保科技开发有限公司 | A kind of oily sludge object processing unit using conduction oil indirect heating |
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