CN218530417U - Tail gas discharge system in decoking process of delayed coking device - Google Patents
Tail gas discharge system in decoking process of delayed coking device Download PDFInfo
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- CN218530417U CN218530417U CN202222300527.9U CN202222300527U CN218530417U CN 218530417 U CN218530417 U CN 218530417U CN 202222300527 U CN202222300527 U CN 202222300527U CN 218530417 U CN218530417 U CN 218530417U
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Abstract
A tail gas discharge system in a decoking process of a delayed coking device relates to the field of delayed coking equipment in petrochemical industry, and comprises a coke tower, a decoking workshop, a loading workshop and a waste gas collecting and treating system, wherein the lower part of a waste gas washing absorption tower of the waste gas collecting and treating system is connected with a gas-phase inlet pipeline, the top of the waste gas washing absorption tower is connected with a gas-phase outlet pipeline, the upper part and the lower part of the waste gas washing absorption tower are respectively provided with a demister and a cooling nozzle, the middle section of the waste gas washing absorption tower is provided with an oil collecting tank riser and an alkali liquor nozzle, and the alkali liquor nozzle is positioned at the lower part of the oil collecting tank riser; three bypasses are arranged on a gas phase inlet pipeline of the waste gas washing absorption tower, and each bypass is respectively connected with a waste gas collecting point at the top of the coke tower, a waste gas collecting point at the top of the decoking workshop and a waste gas collecting point at a coke storage tank in the decoking workshop; the utility model discloses satisfied present stage environmental protection and discharged the requirement, the exhaust emission flow is simple, and system safe and reliable can realize unmanned on duty operation.
Description
Technical Field
The utility model belongs to the technical field of the delayed coking equipment among the petrochemical, and specifically relates to a tail gas discharge system of delayed coking device decoking in-process is related to.
Background
It is known that, most of the delayed coking devices in refineries are open operation in the decoking process, and the decoking waste gas is discharged and dissipated, petroleum coke is stacked in the open air, coke powder is scattered, and volatile components in the petroleum coke are volatilized, so that the coking devices generate dust pollution visible to the naked eye and air peculiar smell which can be obviously sensed through smell; the phenomenon of inorganization emission of toxic and harmful waste gas exists in a coke storage pool and a loading area on site; the particles discharged by the coking device have serious harm to human bodies and the environment, if the aerosol particles can not be effectively separated, a series of problems of regional haze, atmosphere pH value change, excessive PM content, human health index reduction and the like can be caused in the environment influence; therefore, the exhaust emission system for realizing green and environment-friendly production of coking enterprises and meeting the current environment-friendly emission requirement is provided, and becomes a basic demand of technical personnel in the field.
Disclosure of Invention
In order to overcome not enough among the background art, the utility model discloses a tail gas discharge system of delayed coking device decoking in-process improves poisonous, the harmful waste gas inorganization emission phenomenon in present on-the-spot coke chest of storing up and the loading district.
In order to realize the purpose, the utility model adopts the following technical scheme:
a tail gas discharge system in a decoking process of a delayed coking device comprises a coke tower, a decoking workshop, a loading workshop and a waste gas collecting and treating system, wherein the waste gas collecting and treating system comprises a waste gas collecting point, a waste gas washing and absorbing tower and a waste gas liquid separating and pretreating tank;
the lower part of the waste gas washing absorption tower is connected with a gas phase inlet pipeline, the top of the waste gas washing absorption tower is connected with a gas phase outlet pipeline, the upper part and the lower part of the waste gas washing absorption tower are respectively provided with a demister and a cooling nozzle, the middle section of the waste gas washing absorption tower is provided with an oil collecting tank riser and an alkali liquor nozzle, and the alkali liquor nozzle is positioned at the lower part of the oil collecting tank riser; the gas phase inlet pipeline of the waste gas washing absorption tower is provided with three bypasses, each bypass is respectively connected with a waste gas collecting point at the top of the coke tower, a waste gas collecting point at the top of the decoking workshop and a waste gas collecting point at a coke storage tank inside the decoking workshop, a pneumatic butterfly valve is arranged on each bypass, and the waste gas collecting points are connected with the waste gas washing absorption tower through a gas phase inlet pipeline;
an alkali liquor circulating component is arranged at the riser of the oil collecting tank, one path of a liquid inlet of a circulating absorption pump in the alkali liquor circulating component is connected to the bottoms of the waste gas liquid separation pretreatment tank and the waste gas washing absorption tower, and the other path of the liquid inlet is connected with a fresh alkali liquor replenishing pipeline; one path of a liquid outlet of the circulating absorption pump is connected with an alkali liquor nozzle arranged in the waste gas liquid separating and pretreating tank, and the other path of the liquid outlet of the circulating absorption pump is connected with an alkali residue sewage treatment mechanism.
The tail gas discharge system of delayed coking device decoking in-process, be equipped with the exhaust gas detection subassembly on the gas phase outlet pipeline of waste gas washing absorption tower, the exhaust gas detection subassembly includes the pneumatic butterfly valve on gas detection appearance, the heating furnace fan entrance pipeline, the pneumatic butterfly valve on the safe blowdown pipeline and the pneumatic butterfly valve on the gas phase inlet pipeline, pneumatic butterfly valve and gas detection appearance for chain setting.
The tail gas discharge system of the delayed coking device in the decoking process is characterized in that a pneumatic regulating valve is arranged on a pipeline for connecting a liquid outlet of a circulating absorption pump and an alkali liquor nozzle, a pneumatic regulating valve is arranged on a connecting pipeline for connecting the liquid outlet of the circulating absorption pump and an alkali residue sewage disposal treatment mechanism, and the pneumatic regulating valve is controlled to be opened and closed by a liquid level sensor arranged in an oil collecting tank riser.
The tail gas discharge system in the decoking process of the delayed coking device is characterized in that a steam discharge point collecting fan is arranged on a gas phase outlet pipeline of the waste gas liquid separation pretreatment tank, and a tail gas conveying fan is arranged on a gas phase outlet pipeline of the waste gas washing absorption tower.
The tail gas discharge system in the decoking process of the delayed coking device is provided with a waste gas collecting fan in a loading workshop.
In the tail gas discharge system in the decoking process of the delayed coking device, a waste gas liquid separation pretreatment tank and demisting cleaning nozzles in a waste gas washing absorption tower are arranged on the upper surface and the lower surface of a demister, the demisting cleaning nozzles are connected with a pipeline from fresh water, the cleaned water is converged with a pipeline at the bottom of an air rising pipe 11 of an oil collecting tank through a pipeline and then is connected with a coke storage tank, and a liquid phase outlet pipeline connected with the coke storage tank is arranged at the bottom of the waste gas liquid separation pretreatment tank.
The tail gas discharge system in the decoking process of the delayed coking device is characterized in that the waste gas collecting points are provided with collecting covers.
The tail gas discharge system in the decoking process of the delayed coking device is characterized in that the lower part of the waste gas washing absorption tower is also connected with a liquid inlet of a circulating washing water pump, and the other path of liquid inlet of the circulating washing water pump is connected with a fresh cooling water supplementing pipeline.
In the tail gas discharge system in the decoking process of the delayed coking device, the decoking workshop and the loading workshop are all of a fully-closed structure and respectively comprise a steel structure framework, an enclosure structure and a ceiling, and a closed loading channel is arranged between the decoking workshop and the loading workshop; a coke storage tank and a sedimentation tank are arranged in the decoking workshop, an explosion-proof intelligent crown block is arranged on a steel structure framework, an intelligent grab bucket is connected to the lower part of the explosion-proof intelligent crown block, and a hopper conveyed by a belt conveyor is arranged at the lower part of the intelligent grab bucket; a lighting belt, a skylight and a shutter are arranged on the building envelope and the ceiling, and an automatic induction door is arranged at a vehicle outlet of the coke car in the loading workshop.
The tail gas exhaust system in the decoking process of the delayed coking device further comprises a full-automatic car washing platform arranged in a car loading workshop.
Since the technical scheme is used, the utility model discloses following beneficial effect has:
the utility model discloses a tail gas discharge system in the decoking process of delayed coking unit, set up totally-enclosed coking workshop, loading workshop and vehicle access, make the pollution source who produces keep apart with the surrounding environment, guarantee that the waste gas that produces does not directly discharge to the external environment in, with waste gas through collecting, purification treatment after rethread burning furnace incineration disposal, the utility model discloses when not changing former production technology, do not influence the normal production of coking, satisfied present stage environmental protection emission requirement, realized the green of coking enterprise, environmental protection production, reduce the pollution to the environment by a wide margin; and the tail gas emission flow is simple, the system is safe and reliable, and unattended operation can be realized.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
FIG. 2 is a schematic plan view of the coke tower, coke-removing workshop, loading workshop, coke-removing workshop and waste gas liquid-separating pretreatment tank of the utility model.
Fig. 3 is a schematic layout of the waste gas scrubbing and absorbing tower of the present invention.
Figure 4 is the plan layout schematic view of the decoking plant of the utility model.
In the figure: 1. a coke drum; 2. washing the absorption tower by waste gas; 3. waste gas liquid separation pretreatment tank; 4. a coke chute; 5. an intelligent grab bucket; 6. an explosion-proof intelligent overhead travelling crane; 7. a hopper; 8. a belt conveyor; 9. carrying a coke car; 10. a demister; 11. an oil collecting tank riser; 12. an alkali liquor nozzle; 13. demisting and cleaning nozzles; 14. cooling the nozzle; 15. a tail gas conveying fan; 16. a steam release point collection fan; 17. a waste gas collecting fan in a loading area; 18. a circulating vehicle washing water pump; 19. a circulating washing water pump; 20. a circulating absorption pump; 21. a gas phase inlet line; 22. a gas phase outlet line; 23. a liquid phase outlet line; 24. a decoking workshop; 25. loading workshop; 26. a coke storage tank; 27. a sedimentation tank; 28. a loading area; 29. an exhaust gas collection point; 30. a maintenance area; 31. a pneumatic butterfly valve; 32. adjusting a valve; 33. a liquid level sensor; 34. a gas detector; 35. a steam discharge point.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The tail gas discharge system in the decoking process of the delayed coking device, which is described in conjunction with the attached drawings 1-4, comprises a coking tower 1, a decoking workshop 24, a loading workshop 25 and a waste gas collecting and processing system, wherein the waste gas collecting and processing system comprises a waste gas collecting point 29, a waste gas washing and absorbing tower 2 and a waste gas separating and pretreating tank 3, and the waste gas collecting point 29 is respectively arranged at the top of the coking tower 1, in the decoking workshop 24 and in the loading workshop 25; a steam discharge point 35 connected with a pipeline at the bottom of the waste gas liquid separation pretreatment tank 3 is also arranged in the loading workshop 25;
a gas phase inlet pipeline 21 is connected to the bottom of the waste gas washing absorption tower 2, a gas phase outlet pipeline 22 is connected to the top of the waste gas washing absorption tower 2, a demister 10 and a cooling nozzle 14 are respectively arranged at the upper part and the lower part of the waste gas washing absorption tower 2, an oil collection tank riser 11 and an alkali liquor nozzle 12 are arranged at the middle section of the waste gas washing absorption tower 2, and the alkali liquor nozzle 12 is positioned at the lower part of the oil collection tank riser 11; the gas phase inlet pipeline 21 is provided with three bypasses, each bypass is respectively connected with a waste gas collecting point 29 at the top of the coke tower 1, a waste gas collecting point 29 at the upper part in the decoking workshop 24 and a waste gas collecting point 29 at a coke storage tank 26 in the decoking workshop 24, a pneumatic butterfly valve 31 is arranged on each bypass, and the waste gas collecting points 29 are connected with the waste gas washing absorption tower 2 through the gas phase inlet pipeline 21;
an alkali liquor circulating component is arranged at the riser 11 of the oil collecting tank, one path of a liquid inlet of a circulating absorption pump 20 in the alkali liquor circulating component is connected to the bottoms of the waste gas liquid separation pretreatment tank 3 and the waste gas washing absorption tower 2, and the other path of the liquid inlet is connected with a fresh alkali liquor replenishing pipeline; one path of a liquid outlet of the circulating absorption pump 20 is connected with an alkali liquor nozzle 12 arranged in the waste gas liquid separating and pretreating tank 3, and the other path is connected with an alkali residue sewage treatment mechanism.
In the tail gas discharge system in the decoking process of the delayed coking device, a gas phase outlet pipeline 22 of a waste gas washing absorption tower 2 is provided with a waste gas detection component, the waste gas detection component comprises a gas detector 34, a pneumatic butterfly valve 31 on a pipeline at the inlet of a fan of a heating furnace, a pneumatic butterfly valve 31 on a safe emptying pipeline and a pneumatic butterfly valve 31 on a gas phase inlet pipeline, and the pneumatic butterfly valve 31 and the gas detector 34 are arranged in a linkage manner;
further, the waste gas detection subassembly is used for detecting whether the waste gas after handling reaches standard.
The tail gas discharge system of delayed coking device decoking in-process, be equipped with pneumatic control valve 32 on the pipeline that the liquid outlet of circulating absorption pump 20 and alkali lye nozzle 12 are connected, be equipped with pneumatic control valve 32 on the liquid outlet of circulating absorption pump 20 and the connecting pipeline of alkali sediment decontamination water treatment mechanism, pneumatic control valve 32 by the level sensor 33 control switching that sets up in oil collecting tank steam-lift 11.
In the tail gas discharge system in the decoking process of the delayed coking device, a steam discharge point collecting fan 16 is arranged on a gas phase outlet pipeline 22 of the waste gas liquid separation pretreatment tank 3, and a tail gas conveying fan 15 is arranged on the gas phase outlet pipeline 22 of the waste gas washing absorption tower 2.
The tail gas discharge system in the decoking process of the delayed coking device is provided with a waste gas collecting fan 17 in a loading workshop 25.
In the tail gas discharge system in the decoking process of the delayed coking device, a waste gas separating pretreatment tank and demisting cleaning nozzles 13 in a waste gas washing absorption tower are arranged on the upper surface and the lower surface of a demister 10, the demisting cleaning nozzles 13 are connected with a pipeline from fresh water, the cleaned water is converged with a pipeline at the bottom of an air rising pipe 11 of an oil collecting tank through a pipeline and then is connected with a coke storage tank 26, and a liquid phase outlet pipeline 23 connected with the coke storage tank 26 is arranged at the bottom of the waste gas separating pretreatment tank 3.
In the tail gas discharge system in the decoking process of the delayed coking device, the waste gas collection points 29 are all provided with collection covers.
The tail gas discharge system in the decoking process of the delayed coking device is characterized in that the lower part of the waste gas washing absorption tower 2 is also connected with a liquid inlet of a circulating washing water pump 19, the other path of liquid inlet of the circulating washing water pump 19 is connected with a fresh cooling water supplementing pipeline, a liquid outlet of the circulating washing water pump 19 is connected with a cooling nozzle 14 arranged in the waste gas washing absorption tower 2, a pneumatic regulating valve 33 is arranged on a pipeline for connecting the liquid outlet of the circulating washing water pump 19 with the cooling nozzle 14, the cooling water spraying flow can be regulated, and cooling spraying water is discharged into a coke storage tank 26 after being used.
In the tail gas discharge system in the decoking process of the delayed coking device, the decoking workshop 24 and the loading workshop 25 are all of a fully-closed structure and respectively comprise a steel structure framework, an enclosure structure and a ceiling, and a closed loading channel is arranged between the decoking workshop 24 and the loading workshop 25; a coke storage tank 26 and a sedimentation tank 27 are arranged in the decoking workshop 24, an explosion-proof intelligent crown block 6 is arranged on a steel structure framework, an intelligent grab 5 is connected to the lower part of the explosion-proof intelligent crown block 6, and a hopper 7 conveyed by a belt conveyor 8 is arranged at the lower part of the intelligent grab 5; the building enclosure and the ceiling are provided with a lighting belt, a skylight and a shutter, and an automatic induction door is installed at a vehicle outlet of the coke car 9 in the loading workshop 25.
The tail gas exhaust system in the decoking process of the delayed coking device also comprises a full-automatic car washing platform arranged in the loading workshop 25.
When the tail gas discharge system in the decoking process of the delayed coking device is implemented, when the tail gas discharge system is used, coke falls into a coke storage tank 26 through a coke chute 4 at the bottom of a coke tower 1, the coke is moved to a sedimentation tank 27 in a decoking workshop 24 through an intelligent grab bucket 5 on an explosion-proof intelligent crown block 6 to be drained, the drained coke is grabbed to a hopper 7 through the intelligent grab bucket 5, and the coke is loaded onto a coke transporting vehicle 9 through a belt conveyor 8 below the hopper 7; after loading is finished in the loading area 28 below the hopper 4, the coke powder scattered in the loading process is cleaned through a full-automatic car washing platform in the loading workshop 25, the coke powder is prevented from being scattered randomly along with the car to pollute the surrounding environment, the sewage after car washing is recycled through a circulating car washing water pump 18 of the full-automatic car washing platform after passing through a collecting filter, and an overhaul area 30 is arranged on one side of the sedimentation tank 27; a loading waste gas collecting fan 17 is arranged on the loading workshop 25, and dust-containing gas overflowing during loading is returned to the decoking workshop 24 through a collecting cover;
waste gas collecting points 29 arranged at the top of the coke tower 1, inside the decoking workshop 24 and inside the loading workshop 25 are collected by adopting collecting hoods, negative pressure is formed by a tail gas conveying fan 15, and all waste gas collected by the waste gas collecting points 29 is sent into a gas phase inlet pipeline 21 to reach a waste gas washing absorption tower 2; wherein the waste gas of the steam release point 35 is collected, dehydrated and desulfurized by the waste gas liquid separation pretreatment tank 3 and then returned to the decoking workshop 24; the waste gas is cooled by a cooling nozzle 14 at the lower part of a waste gas washing absorption tower 2, a cooling medium adopts low-temperature fresh water or low-temperature coke cooling water, the cooled waste gas enters the upper part of the waste gas washing absorption tower 2 through an oil collecting tank riser 11 for desulfurization, namely sulfides and mercaptan in the waste gas are removed by spraying through an alkali liquor nozzle 12, demisted by a demister 10 and then conveyed to a heating furnace by a tail gas conveying fan 15 to be combusted and removed of VOCs, and the waste gas is discharged after reaching the standard;
an alkali liquor circulating component is arranged at the riser 11 of the oil collecting tank and can recycle alkali liquor, one path of a liquid inlet of a circulating absorption pump 20 in the alkali liquor circulating component is connected with the bottoms of the waste gas liquid separating and pretreating tank 3 and the waste gas washing and absorbing tower 2, and the other path of the liquid inlet is connected with a fresh alkali liquor supplementing pipeline; one path of a liquid outlet of the circulating absorption pump 20 is connected with an alkali liquor nozzle 12 arranged in the waste gas liquid separation pretreatment tank 3, and a pneumatic adjusting valve is arranged on a pipeline for connecting the liquid outlet of the circulating absorption pump 20 with the alkali liquor nozzle and can adjust the spraying flow of alkali liquor; the other path is connected with an alkaline residue decontamination water treatment mechanism, a pneumatic regulating valve 32 is arranged on a connecting pipeline between the liquid outlet of the circulating absorption pump 20 and the alkaline residue decontamination water treatment mechanism, and the opening and closing of the pneumatic regulating valve 32 are controlled by a liquid level sensor 33 arranged in the oil collecting tank gas rising pipe 11.
A gas phase outlet pipeline 22 of the waste gas washing absorption tower 2 is provided with a waste gas detection assembly, when a gas detector 34 detects that the content of hydrogen sulfide and combustible gas in the waste gas reaches 15% of the lower limit of an explosion range, a pneumatic butterfly valve 31 on the gas phase inlet pipeline is closed, electric equipment in a closed space is stopped, and sound and light alarm is accompanied; when the gas detector 34 detects that the content of hydrogen sulfide and combustible gas in the waste gas reaches 25% of the lower limit of the explosion range, the pneumatic butterfly valve 31 on the pipeline at the inlet of the heating furnace fan is closed, the pneumatic butterfly valve 31 on the safe emptying pipeline is opened, and the tail gas conveying fan 15 is stopped.
Negative pressure is formed through the steam release point collecting fan 16, and waste gas at the steam release point is collected, dehydrated and desulfurized through the waste gas liquid separation pretreatment tank 3 and then returned to the decoking workshop 24; the utility model discloses still can be equipped with monitored control system, the coke condition in the real time monitoring stores up burnt pond 26, but automatic identification coke position and through the preface show the coke storage condition on the display, reach the setting value when the coke reserves, the treater will be to explosion-proof intelligent overhead traveling crane 6 and intelligent grab 5 instruction of sending out, it is lower than the setting value to start grabbing the material and release appointed place from high position-low position order of coke storage, will stop the operation when storing up the coke reserves.
The detailed part of the utility model is the prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments, which fall within the scope of the concept and the utility model.
Claims (10)
1. The utility model provides a tail gas discharge system of delayed coking device decoking in-process, includes coke drum, decoking workshop, loading workshop and waste gas collection processing system, characterized by: the waste gas collecting and treating system comprises a waste gas collecting point, a waste gas washing and absorbing tower and a waste gas liquid separating and pretreating tank, wherein the waste gas collecting point is respectively arranged at the top of the coke tower, in the decoking workshop and in the loading workshop;
the lower part of the waste gas washing absorption tower is connected with a gas phase inlet pipeline, the top of the waste gas washing absorption tower is connected with a gas phase outlet pipeline, the upper part and the lower part of the waste gas washing absorption tower are respectively provided with a demister and a cooling nozzle, the middle section of the waste gas washing absorption tower is provided with an oil collecting tank riser and an alkali liquor nozzle, and the alkali liquor nozzle is positioned at the lower part of the oil collecting tank riser; the gas phase inlet pipeline of the waste gas washing absorption tower is provided with three bypasses, each bypass is respectively connected with a waste gas collecting point at the top of the coke tower, a waste gas collecting point at the top of the decoking workshop and a waste gas collecting point at a coke storage tank inside the decoking workshop, a pneumatic butterfly valve is arranged on each bypass, and the waste gas collecting points are connected with the waste gas washing absorption tower through a gas phase inlet pipeline;
an alkali liquor circulating component is arranged at the riser of the oil collecting tank, one path of a liquid inlet of a circulating absorption pump in the alkali liquor circulating component is connected with the waste gas liquid separation pretreatment tank and the bottom of the waste gas washing absorption tower, and the other path of the liquid inlet is connected with a fresh alkali liquor replenishing pipeline; one path of a liquid outlet of the circulating absorption pump is connected with an alkali liquor nozzle arranged in the waste gas liquid separating and pretreating tank, and the other path of the liquid outlet of the circulating absorption pump is connected with an alkali residue sewage treatment mechanism.
2. The system of claim 1, wherein the system further comprises: be equipped with the exhaust gas detection subassembly on the gaseous phase outlet pipeline of waste gas washing absorption tower, the exhaust gas detection subassembly includes pneumatic butterfly valve on gas detection appearance, the heating furnace fan entrance pipeline, the pneumatic butterfly valve on the safe blowdown pipeline and the pneumatic butterfly valve on the gaseous phase inlet pipeline, pneumatic butterfly valve and gas detector for chain setting.
3. The system of claim 1, wherein the system further comprises: the pipeline for connecting the liquid outlet of the circulating absorption pump and the alkali liquor nozzle is provided with a pneumatic regulating valve, the connecting pipeline for connecting the liquid outlet of the circulating absorption pump and the alkali residue sewage treatment mechanism is provided with a pneumatic regulating valve, and the opening and closing of the pneumatic regulating valve is controlled by a liquid level sensor arranged in an oil collecting tank riser.
4. The system of claim 1, wherein the system further comprises: a vapor discharge point collecting fan is arranged on a gas phase outlet pipeline of the waste gas liquid separation pretreatment tank, and a tail gas conveying fan is arranged on a gas phase outlet pipeline of the waste gas washing absorption tower.
5. The system of claim 1, wherein the system further comprises: and a waste gas collecting fan is arranged in the loading workshop.
6. The system of claim 1, wherein the system further comprises: the waste gas divides liquid preliminary treatment jar and the defogging in the waste gas washing absorption tower to wash the nozzle and set up in the upper and lower two sides of defroster, and defogging washs the nozzle and is connected with the pipeline that comes from fresh water, and the water after the washing joins the back through the pipeline with the pipeline of oil collecting tank gas riser bottom and connects the storage burnt pond, divides liquid phase outlet pipeline that the preliminary treatment jar was connected with the storage burnt pond in the bottom of waste gas divides liquid.
7. The system of claim 1, wherein the system further comprises: and collecting covers are arranged at the exhaust gas collecting points.
8. The system of claim 1, wherein the system further comprises: the lower part of the waste gas washing absorption tower is also connected with a liquid inlet of a circulating washing water pump, and the other liquid inlet of the circulating washing water pump is connected with a fresh cooling water supplementing pipeline.
9. The system of claim 1, wherein the system further comprises: the coke removing workshop and the loading workshop are all of fully-closed structures and respectively comprise a steel structure framework, an enclosure structure and a ceiling, and a closed loading channel is arranged between the coke removing workshop and the loading workshop; a coke storage tank and a sedimentation tank are arranged in the decoking workshop, an explosion-proof intelligent crown block is arranged on a steel structure framework, an intelligent grab bucket is connected to the lower part of the explosion-proof intelligent crown block, and a hopper conveyed by a belt conveyor is arranged at the lower part of the intelligent grab bucket; a lighting belt, a skylight and a blind window are arranged on the enclosing structure and the ceiling, and an automatic induction door is arranged at a vehicle outlet of the coke car in the loading workshop.
10. The system of claim 1, wherein the system further comprises: the car washing system further comprises a full-automatic car washing platform arranged in the car loading workshop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222300527.9U CN218530417U (en) | 2022-08-31 | 2022-08-31 | Tail gas discharge system in decoking process of delayed coking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222300527.9U CN218530417U (en) | 2022-08-31 | 2022-08-31 | Tail gas discharge system in decoking process of delayed coking device |
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