CN209759377U - Wet pressure coke quenching waste heat and coal gas recovery system - Google Patents
Wet pressure coke quenching waste heat and coal gas recovery system Download PDFInfo
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- CN209759377U CN209759377U CN201920025028.9U CN201920025028U CN209759377U CN 209759377 U CN209759377 U CN 209759377U CN 201920025028 U CN201920025028 U CN 201920025028U CN 209759377 U CN209759377 U CN 209759377U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a wet process pressure coke quenching waste heat and coal gas recovery system, including pressure coke quenching system, waste heat recovery system and coal gas recovery system composition, the pressure coke quenching system is by coke guide, track, fortune coke car, lifting machine, moving platform one, elevating system, first coke quenching jar, first small coke jar, moving platform two, second coke quenching jar, second small coke jar, water pump, switching valve one, switching valve two, one-level settler, baffling board, first buffer tank etc. constitute, the utility model discloses a wet process pressure coke quenching has reduced the waste of heat energy, realizes waste heat utilization; the concentration of the coal gas is improved and the coal gas is recycled through recycling of the mixed gas; the moisture content of the wet pressure coke quenching coke is more stable, the product quality is improved, and economic benefits are created; the utility model realizes the recycling of coke quenching waste heat and coal gas, thereby forming a coke quenching production system with energy conservation, emission reduction and comprehensive utilization.
Description
Technical Field
The utility model belongs to the technical field of the coking, especially, relate to a wet process pressure quenching waste heat and coal gas recovery system.
background
The coke pushed out from the coke oven by the traditional wet quenching is transported into a quenching tower by a quenching car at the temperature of about 1000 ℃, and is cooled by water spray at the temperature of about 150 ℃ and then is sent to a coke cooling platform. In the cooling process of latent heat of the red coke, a large amount of heat energy is wasted, certain pollution is caused to the environment, the moisture content of the coke is unstable, and the product quality is influenced. The dry quenching technology developed in recent years is a method for cooling red coke by inert gas, low-temperature inert gas is blown into a red coke layer of a cooling chamber of a dry quenching furnace by a circulating fan, heat is exchanged by a waste heat boiler after the heat of the red coke is absorbed, steam is generated after the waste heat is absorbed to drive a steam turbine generator to generate electricity, and the coke cooled by the inert gas is discharged from the bottom of the dry quenching furnace. Although the dry quenching technology utilizes the waste heat of the red coke, in order to ensure the safe operation of the dry quenching, the coal gas generated during quenching is converted into carbon dioxide by the sucked air and enters a gas circulation system. The dry quenching technology can not fully utilize the coal gas, but also has the disadvantages of large equipment investment, high operation cost and maintenance cost, high coke burning loss rate and serious influence on the economic benefit of enterprises.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a wet process pressure coke quenching waste heat and coal gas recovery system, which solves the problems of environmental pollution and unstable coke quality caused by the waste of heat energy of the traditional wet process coke quenching in the prior art; the dry quenching technique has the problems of unavailable gas, large investment, high operation and maintenance cost, high coke burning loss rate and poor economic benefit.
The utility model adopts the technical scheme that the wet process pressure coke quenching waste heat and gas recovery system comprises a pressure coke quenching system, a waste heat recovery system and a gas recovery system, wherein the pressure coke quenching system comprises a coke guide, a track, a coke conveying vehicle, a lifter, a first mobile platform, a lifting mechanism, a first coke quenching tank, a first small coke tank, a mobile platform, a second coke quenching tank, a second small coke tank, a water pump, a first switching valve, a second switching valve, a first-level settler, a baffle plate, a first buffer tank and the like, the upper part of the first coke quenching tank is provided with a first coke quenching cover, the upper part of the second coke quenching tank is provided with a second coke quenching cover, the first coke quenching cover and the second coke quenching tank are respectively connected with the lifting mechanism, the lifting mechanism is connected on the mobile platform, the automatic opening or closing of the coke quenching cover is realized, the first small coke tank is arranged in the first coke tank, the second small coke tank is arranged in the second coke quenching tank, realizing wet pressure coke quenching;
the waste heat recovery system comprises a primary settler, a baffle plate, a first buffer tank, a waste heat exchanger, a dust cleaning system, a steam buffer tank, a steam pressure gauge, a filter screen, a sedimentation tank, a circulating induced draft fan, a deaerator, a desalting water tank and a heat exchanger, wherein the primary settler is connected with the first buffer tank, the first buffer tank is connected with the waste heat exchanger, the waste heat exchanger is respectively connected with the deaerator and the steam buffer tank, the waste heat exchanger is connected with the circulating induced draft fan through the heat exchanger and a vacuum dehydrator, an inlet of the circulating induced draft fan is connected with a nitrogen pipeline, and mixed gas exchanges heat with the waste heat exchanger in the first coke quenching tank or the second quenching tank under the action of the circulating induced draft fan to realize waste heat recovery and;
the coal gas recovery system comprises a vacuum dehydrator, a circulating induced draft fan, a coal gas switching valve, a nitrogen pipeline, a coal gas detector and a coal gas buffer tank, wherein an inlet of the circulating induced draft fan is connected with an outlet of the vacuum dehydrator, an outlet of the circulating induced draft fan is connected with the nitrogen pipeline and the coal gas switching valve and is also connected with the coal gas detector, the coal gas switching valve is connected with the coal gas buffer tank, and the lower part of the coal gas buffer tank of the vacuum dehydrator is connected with a sedimentation tank through a pipeline.
As further described herein, the pressure quenching system is comprised of a first quench tank and a second quench tank, and may be an Nth quench tank. The first small coke tank is placed in the first coke quenching tank, the second small coke tank is placed in the second coke quenching tank, the Nth small coke tank is placed in the Nth coke quenching tank, the top of the first coke quenching tank is provided with a first coke quenching cover, the top of the second coke quenching tank is provided with a second coke quenching cover, and the top of the coke quenching cover is provided with a lifting mechanism for controlling the opening and closing of the coke quenching cover.
To the utility model discloses a further description, there is the water pump first side of putting out the burnt jar and putting out the burnt jar with the second in the pressure quenching system, and the spray header is connected to the water pump and the inside of first jar and the second jar of putting out the burnt jar is put out to first, there is the switching valve first upper portion of putting out the burnt jar and putting out the burnt jar with the second, and there is the switching valve lower part, realizes putting out switching work between the burnt jar, moving platform one is connected on the upper portion of first quenching lid, and moving platform two is connected on the upper portion of second quenching lid, realizes putting out the automation of burnt jar and opens and close.
To the utility model discloses a further description, among the waste heat recovery system first put out burnt jar and the second and put out the centre of burnt jar and connect the one-level settler through switching valve one, there is the baffling board in the inside of one-level settler, and there is the filter screen lower part, first buffer tank is still connected to the one-level settler, and there is the filter screen in the inside of first buffer tank to pass through the pipe connection sedimentation tank.
Right the utility model discloses a further description, waste heat exchanger is connected to first buffer tank among the waste heat recovery system, and there is the deashing system waste heat exchanger's inside. And a steam pipeline of the waste heat exchanger is connected with a steam buffer tank and then is connected with a user steam pipeline through a steam pressure gauge.
it is right to the further description of the utility model, waste heat exchanger connects heat exchanger and oxygen-eliminating device among the waste heat recovery system, the export of the access connection heat exchanger of oxygen-eliminating device, the export of the access connection demineralized water tank of heat exchanger.
It is right to the further description of the utility model, the import of the exit linkage vacuum dehydrator of heat exchanger, the exit linkage circulation draught fan of vacuum dehydrator, the exit linkage nitrogen gas pipeline and the coal gas diverter valve of circulation draught fan still connect the coal gas detector, and the coal gas buffer tank is connected to the coal gas diverter valve, the lower part of vacuum dehydrator coal gas buffer tank passes through the pipe connection sedimentation tank.
By adopting the technical scheme, the method has the following beneficial effects:
1. The waste of heat energy is reduced by adopting wet pressure quenching, and the utilization of waste heat is realized;
2. The concentration of the coal gas is improved and the coal gas is recycled through recycling of the mixed gas;
3. The moisture content of the wet pressure coke quenching coke is more stable, the product quality is improved, and economic benefits are created;
4. The utility model realizes the recycling of coke quenching waste heat and coal gas, thereby forming a coke quenching production system with energy conservation, emission reduction and comprehensive utilization.
Drawings
fig. 1 is a schematic structural view of the present invention;
In the figure: 1. the coke guide, 2, a rail, 3, a coke conveying vehicle, 4, a hoister, 5, a first moving platform, 6, a lifting mechanism, 7, a first coke quenching cover, 8, a first coke quenching tank, 9, a first small coke tank, 10 water pumps, 11, a gas buffer tank, 12, a first switching valve and 13, a detection instrument, 14, a second moving platform, 15, a second coke quenching cover, 16, a second coke quenching tank, 17, a second small coke tank, 18, a second switching valve, 19, a second switching valve, 21, a gas detector, 22, a primary settler, 23 baffle plates, 24, a first buffer tank, 25, a waste heat exchanger, 26 ash removal systems, 27 steam buffer tanks, 28 steam pressure meters, 29 filter screens, 30 sedimentation tanks, 31 circulating induced draft fans, 32 deaerators, 33 brine removal tanks, 34 heat exchangers, 35 vacuum dehydrators, 36 nitrogen pipelines, 37 coke cooling platforms and 38 spray water pipes.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The wet pressure quenching waste heat and coal gas recovery system comprises a pressure quenching system, a waste heat recovery system and a coal gas recovery system, wherein the pressure quenching system comprises a coke guide car 1, a track 2, a coke conveying car 3, a lifting machine 4, a first moving platform 5, a lifting mechanism 6, a first coke quenching tank 8, a first small coke tank 9, a second moving platform 14, a second coke quenching tank 16, a second small coke tank 17, a water pump 10, a first switching valve 12, a second switching valve 18, a primary settler 22, a baffle plate 23, a first buffer tank 24 and the like, a first quenching cover 7 is arranged on the upper portion of the first coke quenching tank 8, and a second quenching cover is arranged on the upper portion of the second coke quenching tank 16. The first coke quenching cover 7 and the second coke quenching tank 16 are respectively connected with the lifting mechanism 6, the lifting mechanism 6 is connected on the mobile platform to realize the automatic opening or closing of the coke quenching cover, the first small coke tank 9 is placed in the first coke quenching tank 8, the second small coke tank 17 is placed in the second coke quenching tank 16 to realize the wet pressure coke quenching;
The waste heat recovery system comprises a primary settler 22, a baffle plate 23, a first buffer tank 24, a waste heat exchanger 25, an ash cleaning system 26, a steam buffer tank 27, a steam pressure gauge 28, a filter screen 29, a sedimentation tank 30, a circulating induced draft fan 31, a deaerator 32, a desalting water tank 33 and a heat exchanger 34, wherein the primary settler 22 is connected with the first buffer tank 24, the first buffer tank 24 is connected with the waste heat exchanger 25, the waste heat exchanger 25 is respectively connected with the deaerator 32 and the steam buffer tank 27, the waste heat exchanger 25 is connected with the circulating induced draft fan 31 through the heat exchanger 34 and a vacuum dehydrator 35, an inlet of the circulating induced draft fan 31 is connected with a nitrogen pipeline 36, and under the action of the circulating induced draft fan 31, mixed gas exchanges heat with the waste heat exchanger 25 in the first coke quenching tank 8 or the second coke quenching tank 16 to realize waste heat;
the coal gas recovery system is composed of a vacuum dehydrator 35, a circulating induced draft fan 31, a coal gas switching valve 19, a nitrogen pipeline 36, a coal gas detector 21 and a coal gas buffer tank 11, wherein an inlet of the circulating induced draft fan 31 is connected with an outlet of the vacuum dehydrator 35, an outlet of the circulating induced draft fan 31 is connected with the nitrogen pipeline 36 and the coal gas switching valve 19 and is also connected with the coal gas detector 21, the coal gas switching valve 21 is connected with the coal gas buffer tank 11, and the lower part of the coal gas buffer tank 11 of the vacuum dehydrator 35 is connected with a sedimentation tank 30 through a pipeline.
The pressure quenching system consists of a first quenching tank 8, a second quenching tank 16 and an Nth quenching tank, wherein a first small coke tank 9 is placed in the first quenching tank 8, a second small coke tank 17 is placed in the second quenching tank 16, the Nth small coke tank is placed in the Nth quenching tank, a first quenching cover 7 is arranged at the top of the first quenching tank 8, a second quenching cover 15 is arranged at the top of the second quenching tank 16, and a lifting mechanism 6 is arranged at the top of the quenching cover to control the opening and closing of the quenching cover.
A water pump 10 is arranged on the side surfaces of a first coke quenching tank 8 and a second coke quenching tank 16 in the pressure coke quenching system, the water pump 10 is connected with a spray pipe to the insides of the first coke quenching tank 8 and the second coke quenching tank 16, a switching valve 12 is arranged on the upper portions of the first coke quenching tank 8 and the second coke quenching tank 16, a switching valve 20 is arranged on the lower portions of the first coke quenching tank 8 and the second coke quenching tank 16, switching operation between the coke quenching tanks is achieved, the upper portion of a first coke quenching cover 8 is connected with a first moving platform 5, and the upper portion of a second coke quenching cover 15 is connected with a second moving platform 14, so that automatic opening and closing of the coke quenching tanks.
In the waste heat recovery system, the middle of the first coke quenching tank 8 and the second coke quenching tank 16 is connected with a first-stage settler 22 through a first switching valve 12, a baffle plate 23 is arranged in the first-stage settler 22, a filter screen 29 is arranged at the lower part of the first-stage settler 22, the first-stage settler 22 is also connected with a first buffer tank 24, and the filter screen 29 is arranged in the first buffer tank 24 and is connected with a sedimentation tank 30 through a pipeline.
A first buffer tank 24 in the waste heat recovery system is connected with a waste heat exchanger 25, an ash removal system 26 is arranged in the waste heat exchanger 25, and a steam pipeline of the waste heat exchanger 25 is connected with a steam buffer tank 27 and then is connected with a user steam pipeline through a steam pressure gauge 28.
The waste heat exchanger 25 in the waste heat recovery system is connected with the heat exchanger 34 and the deaerator 32, the inlet of the deaerator 32 is connected with the outlet of the heat exchanger 34, and the inlet of the heat exchanger 34 is connected with the outlet of the desalted water tank 33.
The outlet of the heat exchanger 34 is connected with the inlet of the vacuum dehydrator 35, the outlet of the vacuum dehydrator 35 is connected with the circulating induced draft fan 31, the outlet of the circulating induced draft fan 31 is connected with the nitrogen pipeline 36 and the coal gas switching valve 19, the coal gas detector 21 is further connected, the coal gas switching valve 21 is connected with the coal gas buffer tank 11, and the lower part of the coal gas buffer tank 11 of the vacuum dehydrator 35 is connected with the sedimentation tank 30 through a pipeline.
the coke guide 1 of the pressure coke quenching system intercepts red coke in small coke tanks (a first small coke tank 9 and a second small coke tank 17), and the small coke tanks (the first small coke tank 9 and the second small coke tank 17) are placed in the coke carrier 3 and used for transporting coke; the elevator 4 is arranged at the upper part of the first coke quenching tank 8 and the second coke quenching tank 16 and can move back and forth between the coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16); the coke quenching covers (the first coke quenching cover 7 and the second coke quenching cover 15) are arranged above the first coke quenching tank 8 and the second coke quenching tank 16, and the top parts of the coke quenching covers (the first coke quenching cover 7 and the second coke quenching cover 15) are connected with a lifting mechanism 6 to realize the opening and closing of the coke quenching covers (the first coke quenching cover 7 and the second coke quenching cover 15); the upper part of the coke quenching cover (the first coke quenching cover 7 and the second coke quenching cover 15) is provided with a detection instrument 13 and a spray water pipe 38, and the spray water pipe 38 is connected inside the coke quenching cover (the first coke quenching cover 7 and the second coke quenching cover 15); the side surfaces of the coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16) are respectively connected with a spray water pipe 38, the spray water pipe 38 is connected with a water pump 10, and the spray water pipes 38 are all provided with electric valves to realize automatic control; a switching valve is connected between the first coke quenching tank 8 and the second coke quenching tank 16 and is used for switching two coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16), a pipeline is arranged between the two coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16) and is connected with a primary settler 22, the primary settler 22 is connected with a first buffer tank 24 through a switching valve I12, and the first buffer tank 24 is connected with a waste heat exchanger 25 through a valve; the waste heat exchanger 25 is connected with the vacuum dehydrator 35, the vacuum dehydrator 35 is connected with the circulating induced draft fan 31, and the outlet of the circulating induced draft fan 31 is respectively connected with the lower parts of the two coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16) through valves.
The waste heat recovery system is connected between the first buffer tank 24 and the vacuum dehydrator 35, an inlet of circulating water of the waste heat exchanger 25 is connected with an outlet of the deaerator 32, an inlet of the deaerator 32 is connected with an outlet of an inner pipeline of the heat exchanger 34, and a water inlet pipeline of the heat exchanger 34 is connected with a water supply system of the desalting water tank 33; a steam outlet of the waste heat exchanger 3425 is connected with a steam buffer tank 27, a pipeline provided with a steam pressure gauge 28 is connected with a user steam pipeline interface, and the coal gas recovery system is connected between the vacuum dehydrator 35 and the coal gas buffer tank 11; the cooled waste gas enters a vacuum dehydrator 35 through a heat exchanger 34, and enters a circulating induced draft fan 31 after dehydration, an outlet of the circulating induced draft fan 31 is connected with a gas detector 21 and a switching valve II 18, the gas detector 21 mainly detects the content of gas, and the detection data is automatically switched to a gas buffer tank 11 when meeting the requirements, a lifting mechanism 6 is arranged on a coke car 3 of the pressure coke quenching system, the lifting mechanism 6 is mainly used for driving the coke car 3 to walk, the lifting mechanism 6 is used for discharging coke from small coke tanks (a first small coke tank 9 and a second small coke tank 17), a brake control system and a limit control system are further arranged on the coke car 3, and a lifter 4, a first coke quenching tank 8 and a second coke quenching tank 16 are arranged in a coke quenching workshop of the pressure coke quenching system; the upper tops of the first coke quenching tank 8 and the second coke quenching tank 16 are respectively provided with a detection instrument 13, an air inlet valve, a safety valve and a spray water pipe 38, the spray water pipe 38 is arranged inside the first coke quenching tank 8 and the second coke quenching tank 16, the side surfaces and the bottoms of the first coke quenching tank 8 and the second coke quenching tank 16 are connected with the spray water pipe 38, the main pipe of the spray water pipe 38 is provided with the detection instrument 13, a nitrogen pipeline 36 and an electric valve, the spray water pipe 38 is connected inside the first coke quenching tank 8 and the second coke quenching tank 16, the first small coke tank 9 and the second small coke tank 17 are arranged inside the first coke quenching tank 8 and the second coke quenching tank 16, small holes are distributed around the first small coke tank 9 and the second small coke tank 17 so that cooling water and steam can permeate into coke during spraying, the outlets of the first coke quenching tank 8 and the second coke quenching tank 16 are respectively connected with a pneumatic switching valve, two pneumatics switching valves's centre is through pipe connection to one-level settler 22, first coke quenching jar 8 and the lower part of second coke quenching jar 16 be the circulation waste gas entry, connect the export of circulation draught fan 31 and the entry of gas buffer tank 11 respectively, connect coal gas detector 21 table 13 and valve in addition, two pipe connection one-level settlers 22 in the middle of the coke quenching jar, one-level settler 22 passes through the valve and connects the waste gas buffer tank. The primary settler 22 is formed by knotting refractory materials, the lower part of the settler is provided with a cooling pipeline for cooling the coke powder which is precipitated slightly, the outlet of the primary settler 22 is connected with the inlet of the first buffer tank 24, the upper part of the first buffer tank 24 is connected with the nitrogen pipeline 36 and the detection instrument 13, and the lower part is provided with a coke powder filter screen 29 and a waste water discharge port. An outlet of the first buffer tank 24 is connected with a waste gas inlet of a waste heat exchanger 3425, a waste gas outlet of the waste heat exchanger 3425 is connected with a vacuum dehydrator 35 through a heat exchanger 34, and a steam outlet is connected with a user steam pipeline after being connected with a steam buffer tank 27. Waste heat exchanger, 25 circulating water inlet connection oxygen-eliminating device 32, oxygen-eliminating device 32 connect heat exchanger 34, and demineralized water tank 33 and pipeline are connected to heat exchanger 34, circulation draught fan 31 is connected to vacuum dehydrator 35, there is nitrogen gas pipeline 36 on the inlet pipeline of circulation draught fan 31, installs electric valve on the nitrogen gas pipeline 36, detects qualified coal gas through gas detector 21, gets into in the coal gas buffer tank 11 through gas diverter valve 19, and the coke after the cooling is carried the finished product storehouse through the belt after first small coke jar 9 or second small coke jar 17 and fortune coke car 33 are transported cool burnt platform 37.
The utility model discloses in come from the red burnt charcoal of coke oven, flow into first small coke jar 9 or second small coke jar 17 on the fortune burnt car 3 after the interception of coke guide 1 in, fortune burnt car 3 transports first small coke jar 9 or second small coke jar 17 to quench the coke workshop after, lifting machine 4 will promote first quenching burnt jar 8 or the second top of quenching burnt jar 16, first quenching lid 7 and second are quenched the coke and are covered 15 and are opened automatically respectively, the small coke jar is placed at first quenching burnt jar 8 or second and is quenched burnt jar 16 and prepare to quench the coke.
After the first small coke tank 9 or the second small coke tank 17 is placed in the coke quenching tank, the first coke quenching cover 7 and the second coke quenching cover 15 are automatically closed, the spraying system of the first coke quenching tank 8 or the second coke quenching tank 16 automatically sprays to generate steam and other mixed gas, and the mixed gas enters the waste heat exchanger 25 to exchange heat energy under the action of the circulating induced draft fan 31; the desalted water from the deaerator 32 passes through the waste heat exchanger 25 to generate steam which enters the steam buffer tank 27 for users to use.
The mixed gas 25 after passing through the waste heat exchanger is cooled to about 180 ℃, enters a vacuum dehydrator 35 for dehydration, then enters a coal gas buffer tank 11 through a circulating induced draft fan 31, and the mixed gas with low coal gas content passes through a second switching valve 20 and then is circularly cooled through the bottom of the first coke quenching tank 8 or the second coke quenching tank 16.
Having described the basic principles and essential features of the invention, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed, and which are defined by the appended claims and their equivalents.
Claims (7)
1. A wet pressure coke quenching waste heat and coal gas recovery system, which comprises a pressure coke quenching system, a waste heat recovery system and a coal gas recovery system, it is characterized in that the pressure coke quenching system comprises a coke guide, a track, a coke transporting vehicle, a lifter, a first moving platform, a lifting mechanism, a first coke quenching tank, a first small coke tank, a second moving platform, a second coke quenching tank, a second small coke tank, a water pump, a first switching valve, a second switching valve, a first-stage settler, a baffle plate, a first buffer tank and the like, the upper part of the first coke quenching tank is provided with a first coke quenching cover, the upper part of the second coke quenching tank is provided with a second coke quenching cover, the first coke quenching cover and the second coke quenching tank are respectively connected with a lifting mechanism, the lifting mechanism is connected on a mobile platform to realize the automatic opening or closing of the coke quenching covers, the first small coke tank is placed in a first coke quenching tank, and the second small coke tank is placed in a second coke quenching tank;
the waste heat recovery system comprises a primary settler, a baffle plate, a first buffer tank, a waste heat exchanger, a dust cleaning system, a steam buffer tank, a steam pressure gauge, a filter screen, a sedimentation tank, a circulating induced draft fan, a deaerator, a desalting water tank and a heat exchanger, wherein the primary settler is connected with the first buffer tank, the first buffer tank is connected with the waste heat exchanger, the waste heat exchanger is respectively connected with the deaerator and the steam buffer tank, the waste heat exchanger is connected with the circulating induced draft fan through the heat exchanger and a vacuum dehydrator, an inlet of the circulating induced draft fan is connected with a nitrogen pipeline, and mixed gas exchanges heat with the waste heat exchanger in the first coke quenching tank or the second quenching tank under the action of the circulating induced draft fan to realize waste heat recovery and;
The coal gas recovery system comprises a vacuum dehydrator, a circulating induced draft fan, a coal gas switching valve, a nitrogen pipeline, a coal gas detector and a coal gas buffer tank, wherein an inlet of the circulating induced draft fan is connected with an outlet of the vacuum dehydrator, an outlet of the circulating induced draft fan is connected with the nitrogen pipeline and the coal gas switching valve and is also connected with the coal gas detector, the coal gas switching valve is connected with the coal gas buffer tank, and the lower part of the coal gas buffer tank of the vacuum dehydrator is connected with a sedimentation tank through a pipeline.
2. The wet pressure quenching waste heat and gas recovery system of claim 1, wherein the pressure quenching system is composed of a first quenching tank and a second quenching tank, or an Nth quenching tank, the Nth coke tank is placed in the Nth quenching tank, a first quenching cover is arranged on the top of the first quenching tank, a second quenching cover is arranged on the top of the second quenching tank, and a lifting mechanism is arranged on the top of the quenching cover to control the opening and closing of the quenching cover.
3. The system for recovering waste heat and coal gas by wet pressure quenching of claim 1, wherein a water pump is arranged on the side surface of a first coke quenching tank and a second coke quenching tank in the pressure quenching system, the water pump is connected with a spray water pipe to the inside of the first coke quenching tank and the inside of the second coke quenching tank, the upper parts of the first coke quenching tank and the second coke quenching tank are provided with switching valves, the switching valves are arranged on the lower parts of the first coke quenching tank and the second coke quenching tank to realize the switching operation between the coke quenching tanks, the upper part of a first coke quenching cover is connected with a first moving platform, and the upper part of a second coke quenching cover is connected with a second moving platform.
4. The system for recovering the waste heat and the coal gas by wet pressure quenching of claim 1, wherein a first settler is connected between the first coke quenching tank and the second coke quenching tank in the waste heat recovery system through a first switching valve, a baffle plate is arranged in the first settler, a filter screen is arranged at the lower part of the first settler, the first settler is further connected with a first buffer tank, and the filter screen arranged in the first buffer tank is connected with a settling pond through a pipeline.
5. The system for recovering the waste heat and the coal gas of the wet process pressure coke quenching as claimed in claim 1, wherein a first buffer tank in the system for recovering the waste heat is connected with a waste heat exchanger, a dust cleaning system is arranged in the waste heat exchanger, and a steam pipeline of the waste heat exchanger is connected with a steam pipeline of a user through a steam pressure gauge after being connected with a steam buffer tank.
6. The system for recovering the waste heat and the coal gas of the wet method pressure coke quenching as claimed in claim 1, wherein a waste heat exchanger in the waste heat recovery system is connected with a heat exchanger and a deaerator, an inlet of the deaerator is connected with an outlet of the heat exchanger, and an inlet of the heat exchanger is connected with an outlet of a desalting water tank.
7. The system for recovering the waste heat and the coal gas of the wet pressure coke quenching as claimed in claim 1, wherein an outlet of the heat exchanger is connected with an inlet of a vacuum dehydrator, and an outlet of the vacuum dehydrator is connected with a circulating induced draft fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920025028.9U CN209759377U (en) | 2019-01-08 | 2019-01-08 | Wet pressure coke quenching waste heat and coal gas recovery system |
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| CN201920025028.9U CN209759377U (en) | 2019-01-08 | 2019-01-08 | Wet pressure coke quenching waste heat and coal gas recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575960A (en) * | 2019-01-08 | 2019-04-05 | 杨玉亭 | A kind of wet process coke pressure quenching waste heat and gas recovery system |
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2019
- 2019-01-08 CN CN201920025028.9U patent/CN209759377U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575960A (en) * | 2019-01-08 | 2019-04-05 | 杨玉亭 | A kind of wet process coke pressure quenching waste heat and gas recovery system |
| CN109575960B (en) * | 2019-01-08 | 2024-06-11 | 杨玉亭 | Wet pressure quenching waste heat and gas recovery system |
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