CN216337194U - Energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system - Google Patents
Energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system Download PDFInfo
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- CN216337194U CN216337194U CN202122832752.2U CN202122832752U CN216337194U CN 216337194 U CN216337194 U CN 216337194U CN 202122832752 U CN202122832752 U CN 202122832752U CN 216337194 U CN216337194 U CN 216337194U
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Abstract
The utility model discloses an energy-saving and environment-friendly waste gas recycling dirty oil sludge thermal desorption treatment system which comprises a horizontal rotary feeding device, a thermal desorption furnace and an assembled coil condensing device, wherein the horizontal rotary feeding device is communicated with the thermal desorption furnace, a discharge pipe is arranged at the top of the thermal desorption furnace, a slag discharge device is arranged at the bottom of the thermal desorption furnace, and a natural gas pipe is arranged at the bottom of the thermal desorption furnace. The energy-saving environment-friendly dirty oil sludge thermal desorption treatment system for recycling waste gas has the advantages of recycling, treating or utilizing waste gas, and solves the problems that the existing engineering evaluation time is earlier, a storage tank is a fixed top tank, and the respiratory waste gas generated by the storage tank is not required to be collected and treated; volatile organic waste gas in the heating and stirring process of the existing production line is not collected and is discharged in an unorganized way; the organic waste gas in the existing engineering device area and loading and unloading area is not subjected to strong accounting source, measures such as oil gas recovery and the like are not adopted, and the organic waste gas is inorganically discharged to cause pollution.
Description
Technical Field
The utility model relates to the technical field of dirty oil sludge waste gas recovery and treatment, in particular to an energy-saving and environment-friendly dirty oil sludge thermal desorption treatment system for waste gas recovery and recycling.
Background
The oil sludge treatment refers to sludge generated in the production process of an oil field in the processes of crude oil extraction, storage, gathering and transportation, processing and crude oil extraction liquid treatment, and is named by containing crude oil or certain components in the crude oil, and mainly comprises the following steps: the thermal desorption process comprises the steps of heating and volatilizing organic pollutants, metal mercury and the like in polluted soil to be separated from the polluted soil in a direct or indirect heat exchange mode, effectively collecting and treating volatilized pollutants, and the thermal desorption system comprises a pretreatment and feeding unit, a thermal desorption chamber and an exhaust condensation, separation and treatment system.
Because the existing engineering environmental evaluation time is early, the storage tank is a fixed top tank, and the respiratory waste gas generated by the storage tank is not required to be collected and treated; volatile organic waste gas in the heating and stirring process of the existing production line is not collected and is discharged in an unorganized way; the organic waste gas in the existing engineering device area and loading and unloading area is not subjected to strong accounting source and measures such as oil gas recovery and the like, and the organic waste gas is inorganically discharged to cause pollution, so that an energy-saving environment-friendly waste gas recovery and reutilization sump oil sludge thermal desorption treatment system is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an energy-saving and environment-friendly thermal desorption treatment system for recovering and recycling waste gas and utilizing greasy dirt, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
an energy-saving environment-friendly dirty oil sludge thermal desorption treatment system for recycling waste gas comprises a horizontal rotary feeding device, a thermal desorption furnace and an assembled coil condensing device, the horizontal rotary feeding device is communicated with the thermal desorption furnace, the top of the thermal desorption furnace is provided with a discharge pipe, the bottom of the thermal desorption furnace is provided with a slag discharging device, the bottom of the thermal desorption furnace is provided with a natural gas pipe, the tail part of the thermal desorption furnace is communicated with a steam distribution drum, the steam distribution drum is provided with two output ends, and two output ends of the steam-dividing drum are respectively communicated with an assembled coil condensing device and an overpressure relief device, the output end of the assembled coil condensing device is communicated with an oil storage tank, the oil storage tank is provided with two output ends, and two output ends of the oil storage tank are respectively communicated with the overpressure relief device and the water seal tank, and the water seal tank is communicated with the input end of the thermal desorption furnace.
As a still further scheme of the utility model: and pyrolyzing and volatilizing the heavy components of the thermal desorption furnace to generate a gasified mixture, and transmitting the gasified mixture to the steam-distributing drum through a gasified mixture transmission pipeline.
As a still further scheme of the utility model: the temperature for volatilizing a large amount of light components and water in the oil sludge in the thermal desorption furnace and decomposing a small amount of light components and water is two hundred ℃, and the pyrolysis volatilization temperature of the heavy components is three hundred ℃.
As a still further scheme of the utility model: and two output ends of the steam distribution drum are respectively a connecting pipeline of an overpressure relief device and a mixed gas transmission pipeline, the mixed gas transmission pipeline is connected to the assembled coil condensing device, liquid-phase heavy components are transmitted to the oil storage tank after the mixed gas is condensed, and non-condensable light components of the mixed gas are communicated with the water seal tank.
As a still further scheme of the utility model: and the mixed gas transmission pipeline of the steam-dividing drum is arranged on the upper section tower tray of the steam-dividing drum and is communicated with the tower tray.
As a still further scheme of the utility model: the water-sealed tank directly transmits the non-condensable gas to the interior of the furnace chamber of the thermal desorption furnace, and the temperature of the interior of the furnace chamber of the thermal desorption furnace is eight hundred ℃.
As a still further scheme of the utility model: the slag discharging device is a spiral slag discharging machine.
Compared with the prior art, the utility model has the beneficial effects that:
this energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system through retrieving the gasification mixture to through dividing steam drum pressure regulating, integration, later distribute coil pipe condensing equipment, oil storage tank, water seal tank inside retrieve, handle or utilize, prevent organic waste gas inorganization and discharge.
Drawings
FIG. 1 is a schematic view of an energy-saving and environment-friendly thermal desorption treatment system for recycling waste gas and reusing contaminated oil sludge.
In the figure: 1. a horizontal rotary feeding device; 2. a thermal desorption furnace; 3. a discharge pipe; 4. a slag discharge device; 5. a natural gas pipe; 6. a steam distribution drum; 7. a coil condensing unit; 8. an oil storage tank; 9. an overpressure relief device; 10. sealing the tank with water; 11. a crude oil tank.
Detailed Description
Referring to fig. 1, in the embodiment of the present invention, an energy-saving and environment-friendly thermal desorption treatment system for recycling waste gas and reusing contaminated oil sludge includes a horizontal rotary feeding device 1, a thermal desorption furnace 2 and an assembled coil condensing device 7, where the horizontal rotary feeding device 1 is communicated with the thermal desorption furnace 2, a discharge pipe 3 is disposed at the top of the thermal desorption furnace 2, a slag discharge device 4 is disposed at the bottom of the thermal desorption furnace 2, a natural gas pipe 5 is disposed at the bottom of the thermal desorption furnace 2, a steam-splitting drum 6 is communicated with the tail of the thermal desorption furnace 2, the steam-splitting drum 6 is provided with two output ends, two output ends of the steam-splitting drum 6 are respectively communicated with the assembled coil condensing device 7 and an overpressure discharge device 9, an output end of the assembled coil condensing device 7 is communicated with an oil storage tank 8, the oil storage tank 8 is provided with two output ends, and two output ends of the oil storage tank 8 are respectively communicated with the overpressure discharge device 9 and a water seal tank 10, the water-sealed tank 10 is communicated with the input end of the thermal desorption furnace 2, the thermal desorption furnace 2 is a horizontal rotary thermal desorption furnace, drier oil sludge is sent into a processor of the thermal desorption furnace 2 through the horizontal rotary thermal desorption furnace feeding device 1, and a feeding door is sealed after filling.
In a preferred embodiment, the heavy components in the thermal desorption furnace 2 are pyrolyzed and volatilized to generate a gasified mixture, and the gasified mixture is transmitted to the steam-distributing drum 6 through a gasified mixture transmission pipeline, the steam-distributing drum 6 is the prior art, hot steam is adjusted to distribute different required steam to different pipelines, the upper end of the steam-distributing drum is a steam inlet and outlet, the lower end of the steam-distributing drum is a water outlet, and a heat insulation material needs to be wrapped.
In a preferred embodiment, the temperature at which the light components and water in the oil sludge inside the thermal desorption furnace 2 volatilize in a large amount and decompose in a small amount is two hundred degrees celsius, the temperature at which the heavy components volatilize in a large amount and decompose in a small amount is three hundred degrees celsius, when the temperature of the processor reaches two hundred degrees celsius, the light components and water in the oil sludge volatilize in a large amount and decompose in a small amount, and when the temperature of the processor reaches three hundred degrees celsius, the heavy components in the oil sludge volatilize in a pyrolysis manner, so that the gasification effect is achieved.
In a preferred embodiment, two output ends of the steam-separating drum 6 are respectively a connecting pipeline of an overpressure relief device 9 and a mixed gas transmission pipeline, the mixed gas transmission pipeline is connected to the assembled coil condensing device 7, liquid-phase heavy components of the mixed gas after condensation are transmitted to the oil storage tank 8, and light components of the mixed gas which are not condensed are communicated with the water-sealed tank 10, so that the functions of separating the liquid-phase heavy components, the mixed gas and the condensed water are achieved, and the mixed gas is transmitted to different equipment for processing and storage.
In a preferred embodiment, the mixed gas transmission pipeline of the steam-dividing drum 6 is arranged on the upper tray of the steam-dividing drum 6 and is communicated with the upper tray of the steam-dividing drum 6, the gas continuously rises through the upper tray of the steam-dividing drum and is then transmitted to the coil condensing device 7, and part of heavy components in the steam-dividing drum 6 are condensed into liquid which enters the oil storage tank 8.
In a preferred embodiment, the water sealed tank 10 directly transmits the non-condensable gas to the inner part of the furnace chamber of the thermal desorption furnace 2, the temperature of the inner part of the furnace chamber of the thermal desorption furnace 2 is eight hundred degrees centigrade, which is enough to burn the non-condensable gas which is not condensed as fuel, and the generated waste gas G is discharged through an exhaust funnel.
In a preferred embodiment, the slag discharging device 4 is a spiral slag discharging machine, and high-temperature ash discharged from a hearth firstly passes through a double-roller type slag crusher to be crushed into small blocks, so that the cooling and conveying are convenient; the crushed ash enters a water-cooling spiral slag extractor to be fully subjected to heat exchange with the spiral blade and the outer barrel, and is discharged after cooling. If necessary, a star-shaped ash discharge valve can be arranged at the outlet of the slag cooler.
The working principle of the utility model is as follows: the method comprises the following steps of feeding dry oil sludge into a processor of a horizontal thermal desorption furnace 2 through manual loading of a plate trailer, closing a feeding door after filling, when the temperature of the processor reaches 200 ℃, volatilizing a large amount of light components and water in the oil sludge and decomposing a small amount of light components and water, pyrolyzing and volatilizing heavy components in the oil sludge at 300 ℃, feeding a gasified mixture into a pressure reduction steam-separating drum 6 from a main processor, enabling the steam-separating drum 6 to perform pressure regulation and integration, continuously rising gas to pass through an upper-section tray of the steam-separating drum, then conveying the gas to a coil condensing device 7, condensing the heavy components in the steam-separating drum into liquid, feeding the liquid into an oil storage tank 8 for oil and water separation, feeding the obtained non-condensable gas which enters a crude oil tank and is not condensed into a water seal tank 10, conveying the non-condensable gas into a furnace chamber of the thermal desorption furnace 2 for fuel combustion, feeding separated oil-containing wastewater into a circulating water tank for production in the existing engineering, enabling the temperature of the furnace chamber of the thermal desorption furnace 2 to be about 800 ℃, the generated waste gas is discharged through a discharge pipe 3, waste slag is generated in the furnace after pyrolysis of materials in the main processor is finished, heating is stopped and cooling is started, steam is injected for about 2-5 minutes when the main processor reaches a set temperature according to temperature display, steam injection is stopped and rotation is started, mud and sand of the processor are wet and uniform, rotation is stopped again after about 1-2 minutes to cool the mud and sand until the mud and sand in the processor are basically wet, and slag is discharged through a spiral slag discharging machine.
It should be noted that the above embodiments belong to the same utility model concept, and the description of each embodiment has its emphasis, and the description of each embodiment is not described in detail, and reference may be made to the description of other embodiments.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. An energy-saving and environment-friendly thermal desorption treatment system for recycling waste gas and reusing contaminated oil sludge comprises a horizontal rotary feeding device (1), a thermal desorption furnace (2) and an assembled coil condensing device (7), wherein the horizontal rotary feeding device (1) is communicated with the thermal desorption furnace (2), a discharge pipe (3) is arranged at the top of the thermal desorption furnace (2), a slag discharge device (4) is arranged at the bottom of the thermal desorption furnace (2), a natural gas pipe (5) is arranged at the bottom of the thermal desorption furnace (2), and the system is characterized in that the tail of the thermal desorption furnace (2) is communicated with a steam distribution drum (6), the steam distribution drum (6) is provided with two output ends, the two output ends of the steam distribution drum (6) are respectively communicated with the assembled coil condensing device (7) and an overpressure discharge device (9), the output end of the assembled coil condensing device (7) is communicated with an oil storage tank (8), the oil storage tank (8) is provided with two output ends, the two output ends of the oil storage tank (8) are respectively communicated with the overpressure relief device (9) and the water seal tank (10), and the water seal tank (10) is communicated with the input end of the thermal desorption furnace (2).
2. The energy-saving and environment-friendly thermal desorption treatment system for waste gas recovery and reuse sump oil sludge as claimed in claim 1, wherein heavy components in the thermal desorption furnace (2) are pyrolyzed and volatilized to generate a gasified mixture, and the gasified mixture is transmitted to the steam distribution drum (6) through a gasified mixture transmission pipeline.
3. The energy-saving and environment-friendly thermal desorption treatment system for waste sludge recycling of waste gas as claimed in claim 2, wherein the temperature for volatilizing a large amount of light components and water and decomposing a small amount of light components and water in the sludge in the thermal desorption furnace (2) is two hundred ℃, and the temperature for pyrolyzing and volatilizing heavy components is three hundred ℃.
4. The energy-saving and environment-friendly thermal desorption treatment system for waste gas recycling and reusing oil sludge according to claim 1, wherein two output ends of the steam-separating drum (6) are respectively a connecting pipeline of an overpressure relief device (9) and a mixed gas transmission pipeline, the mixed gas transmission pipeline is connected to the assembled coil condensing device (7), liquid-phase heavy components of the mixed gas after condensation are transmitted to the oil storage tank (8), and non-condensable light components of the mixed gas are communicated with the water-sealed tank (10).
5. The energy-saving and environment-friendly thermal desorption treatment system for waste oil sludge recycled from waste gas according to claim 4, wherein the mixed gas transmission pipeline of the steam-dividing drum (6) is arranged on the upper tray of the steam-dividing drum (6) and is communicated with the upper tray of the steam-dividing drum.
6. The energy-saving and environment-friendly thermal desorption treatment system for waste gas recovery and recycle according to claim 1, wherein the water-sealed tank (10) directly transmits the non-condensable gas to the interior of the furnace chamber of the thermal desorption furnace (2), and the temperature of the interior of the furnace chamber of the thermal desorption furnace (2) is eight hundred degrees centigrade.
7. The energy-saving and environment-friendly thermal desorption treatment system for waste oil sludge recycled from waste gas according to claim 1, wherein the slag discharging device (4) is a spiral slag discharging machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832752.2U CN216337194U (en) | 2021-11-18 | 2021-11-18 | Energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122832752.2U CN216337194U (en) | 2021-11-18 | 2021-11-18 | Energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system |
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| CN216337194U true CN216337194U (en) | 2022-04-19 |
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| CN202122832752.2U Active CN216337194U (en) | 2021-11-18 | 2021-11-18 | Energy-concerving and environment-protective type waste gas recovery recycles sump oil mud thermal desorption processing system |
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