CN109575960A - A kind of wet process coke pressure quenching waste heat and gas recovery system - Google Patents
A kind of wet process coke pressure quenching waste heat and gas recovery system Download PDFInfo
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- CN109575960A CN109575960A CN201910014752.6A CN201910014752A CN109575960A CN 109575960 A CN109575960 A CN 109575960A CN 201910014752 A CN201910014752 A CN 201910014752A CN 109575960 A CN109575960 A CN 109575960A
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- coke
- coal gas
- coke quenching
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- 238000010791 quenching Methods 0.000 title claims abstract description 252
- 230000000171 quenching effect Effects 0.000 title claims abstract description 252
- 239000000571 coke Substances 0.000 title claims abstract description 216
- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 22
- 239000002912 waste gas Substances 0.000 title claims abstract description 8
- 239000003034 coal gas Substances 0.000 claims abstract description 70
- 239000007789 gas Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000003028 elevating effect Effects 0.000 claims abstract description 17
- 238000004064 recycling Methods 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 33
- 239000007921 spray Substances 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 238000004062 sedimentation Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 230000032258 transport Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000004071 soot Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- -1 tank Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/04—Wet quenching
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The present invention discloses a kind of wet process coke pressure quenching waste heat and gas recovery system, it is formed including coke pressure quenching system, residual neat recovering system and gas recovery system, the coke pressure quenching system is made of coke guide, track, the burnt vehicle of fortune, elevator, mobile platform one, elevating mechanism, the first coke quenching tank, the first small burnt tank, mobile platform two, the second coke quenching tank, the second small burnt tank, water pump, switch valve one, switch valve two, primary settler, baffle plate, first surge tank etc., the present invention reduces the waste of thermal energy using wet process coke pressure quenching, realizes UTILIZATION OF VESIDUAL HEAT IN；By the recycling of mixed gas, the concentration of coal gas is improved, realizes that coal-gas recovering utilizes；The moisture content of wet process coke pressure quenching coke is more stable, improves product quality, creates economic benefit；The present invention realizes the recycling of quenching waste heat and coal gas, to form the quenching production system of an energy conservation, emission reduction, comprehensive utilization.
Description
Technical field
The invention belongs to coking technology field more particularly to a kind of wet process coke pressure quenching waste heats and gas recovery system.
Background technique
The temperature that coke is released from coke oven with conventional wet quenching transports to quenching tower by coke quenching cart at 1000 DEG C or so
It is interior, it is sent with cooling 150 DEG C or so of water spray to cool Jiao Tai.For the latent heat of red coke during cooling, a large amount of thermal energy is white
Whitecap takes, and certain pollution is not only caused to environment, and coke moisture content is unstable, influences product quality.It sent out in recent years
The Dry Quenching technology that exhibition is got up is by inert gas by red burnt cooling method, and cryogenic inert gas is blasted by circulating fan
In the red focus layer of coke dry quenching furnace cooling chamber, by residual heat boiler for exchanging heat after the red burnt heat of absorption, Steam Actuation vapour is generated after absorbing waste heat
Turbine generator power generation, is discharged by inert gas coke after cooling by coke dry quenching furnace bottom.Although Dry Quenching technology utilizes
The waste heat of red coke, but in order to ensure that Dry Quenching is safely operated, the air that the coal gas that when quenching generates is inhaled into are converted into
Carbon dioxide, into gas-circulating system.Not only coal gas cannot be fully utilized Dry Quenching technology, and equipment investment
Greatly, operating cost and maintenance cost are high, and the burn out rate of coke is high, seriously affect Business Economic Benefit.
Summary of the invention
The object of the present invention is to provide a kind of wet process coke pressure quenching waste heat and gas recovery systems, to solve in the prior art
It is wasted using conventional wet quenching thermal energy, pollutes environment and coke quality is unstable；Dry Quenching technology coal gas cannot utilize, and throw
The problem of money is big, operation and maintenance cost are high, coke burning rate is high, deficiency in economic performance.
The technical scheme adopted by the invention is that a kind of wet process coke pressure quenching waste heat and gas recovery system, including pressure are put out
Burnt system, residual neat recovering system and gas recovery system form, the coke pressure quenching system by coke guide, track, transport burnt vehicle, mention
The machine of liter, mobile platform one, elevating mechanism, the first coke quenching tank, the first small burnt tank, mobile platform two, the second coke quenching tank, the second small coke
The composition such as tank, water pump, switch valve one, switch valve two, primary settler, baffle plate, first surge tank, first quenching
First quenching lid is arranged at the top of tank, and the second quenching lid, the first quenching lid and the second coke quenching tank difference are arranged at the top of the second coke quenching tank
Elevating mechanism is connected, elevating mechanism connects on a mobile platform, realizes being automatically opened or closed for quenching lid, the first small coke
Tank is placed in the first coke quenching tank, and the second small burnt tank is placed in the second coke quenching tank, realizes wet process coke pressure quenching；
The residual neat recovering system is by primary settler, baffle plate, the first surge tank, afterheat heat exchanger, soot cleaning system, steaming
Vapour surge tank, steam pressure gauge, filter screen, sedimentation basin, circulation air-introduced machine, oxygen-eliminating device, sweet-water tank and heat exchanger composition, it is described
Primary settler connect the first surge tank, the first surge tank connect afterheat heat exchanger, afterheat heat exchanger be separately connected oxygen-eliminating device and
Steam buffer tank, the afterheat heat exchanger pass through heat exchanger and vacuum extractor connection circulation air-introduced machine, the circulation air-introduced machine
Entrance connect nitrogen pipeline, under the action of recycling air-introduced machine, mixed gas the first coke quenching tank or the second coke quenching tank with it is remaining
Heat exchanger carries out heat exchange and realizes heat recovery；
The gas recovery system is detected by vacuum extractor, circulation air-introduced machine, Coal gas switch valve, nitrogen pipeline, coal gas
Instrument and coal gas surge tank composition recycle the outlet of the import connection vacuum extractor of air-introduced machine, recycle the outlet connection of air-introduced machine
Nitrogen pipeline and Coal gas switch valve, are also connected with coal gas detector, and Coal gas switch valve connects coal gas surge tank, the vacuum extractor
The lower part of coal gas surge tank connects sedimentation basin by pipeline.
Of the invention is further described, the coke pressure quenching system, can also be with by the first coke quenching tank and the second coke quenching tank
It is N coke quenching tank composition.First small burnt tank is placed in the first coke quenching tank, and the second small burnt tank is placed in the second coke quenching tank, N
Small coke tank is placed on N coke quenching tank, has the first quenching lid at the top of the first coke quenching tank, has the second quenching at the top of the second coke quenching tank
Lid, and have elevating mechanism at the top of quenching lid, control the opening and closing of quenching lid.
Of the invention is further described, there is the side of the first coke quenching tank and the second coke quenching tank in the coke pressure quenching system
Water pump, water pump connect spray waterpipe to the inside of the first coke quenching tank and the second coke quenching tank, first coke quenching tank and the second quenching
Switch valve is arranged at the top of tank, and switch valve is arranged at lower part, realizes switch operating between coke quenching tank, the top of the first quenching lid
Mobile platform one is connected, the top of the second quenching lid connects mobile platform two, realizes automatically opening and closing for coke quenching tank.
Of the invention is further described, in the first coke quenching tank and the second coke quenching tank described in the residual neat recovering system
Between primary settler connected by switch valve one, there is baffle plate in the inside of primary settler, and filter screen, the level-one are arranged at lower part
Settler is also connected with the first surge tank, and the inside of the first surge tank has filter screen to connect sedimentation basin by pipeline.
Of the invention is further described, the first surge tank connects afterheat heat exchanger, waste heat in the residual neat recovering system
After the inside of heat exchanger has soot cleaning system, the jet chimney of afterheat heat exchanger to connect steam buffer tank, connected by steam pressure gauge
Connect user's jet chimney.
Of the invention is further described, afterheat heat exchanger connection heat exchanger and oxygen-eliminating device in the residual neat recovering system,
The outlet of the import connection heat exchanger of oxygen-eliminating device, the outlet of the import connection sweet-water tank of heat exchanger.
Of the invention is further described, the import of the outlet connection vacuum extractor of the heat exchanger, vacuum extractor
Outlet connection circulation air-introduced machine, recycle the outlet connection nitrogen pipeline and Coal gas switch valve of air-introduced machine, be also connected with coal gas detection
Instrument, Coal gas switch valve connect coal gas surge tank, and the lower part of the vacuum extractor coal gas surge tank connects sedimentation basin by pipeline.
By adopting the above technical scheme, it has the following beneficial effects:
1, reduce the waste of thermal energy using wet process coke pressure quenching, realize UTILIZATION OF VESIDUAL HEAT IN；
2, by the recycling of mixed gas, the concentration of coal gas is improved, realizes that coal-gas recovering utilizes；
3, the moisture content of wet process coke pressure quenching coke is more stable, improves product quality, creates economic benefit；
4, the present invention realizes the recycling of quenching waste heat and coal gas, to form energy conservation, emission reduction, a comprehensive utilization
Quenching production system.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure: 1. coke guides, 2. tracks, the burnt vehicle of 3. fortune, 4. elevators, 5. mobile platforms one, 6 elevating mechanisms, 7. first
Quenching lid, 8. first coke quenching tanks, 9 first small burnt tanks, 10 water pumps, 11 coal gas surge tanks, 12 switch valves one, 13. detection instrument,
14. mobile platform two, 15. second quenching lids, 16. second coke quenching tanks, 17. second small burnt tanks, 18 switch valves two, 19 coal gas are cut
Change valve, 20 switching valves two, 21 coal gas detectors, 22 primary settlers, 23 baffle plates, 24 first surge tanks, 25 afterheat heat exchangers,
26 soot cleaning systems, 27 steam buffer tanks, 28 steam pressure gauges, 29 filter screens, 30 sedimentation basins, 31 circulation air-introduced machines, 32 oxygen-eliminating devices,
33 sweet-water tanks, 34 heat exchangers, 35 vacuum extractors, 36 nitrogen pipelines, 37 cool Jiao Tai, 38 spray waterpipes.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
A kind of wet process coke pressure quenching waste heat and gas recovery system, including coke pressure quenching system, residual neat recovering system and coal
Gas recovery system composition, the coke pressure quenching system is by coke guide 1, track 2, the burnt vehicle 3 of fortune, elevator 4, mobile platform 1, liter
Descending mechanism 6, first the 8, first small burnt tank 9 of coke quenching tank, mobile platform 2 14, second the 16, second small burnt tank 17, water pump of coke quenching tank
10, switch valve 1, switch valve 2 18, primary settler 22, baffle plate 23, first surge tank 24 etc. form, and described the
First quenching lid 7 is arranged at the top of one coke quenching tank 8, and the second quenching lid is arranged at the top of the second coke quenching tank 16.First quenching lid 7 and second
Coke quenching tank 16 is separately connected elevating mechanism 6, and elevating mechanism 6 connects on a mobile platform, realizes automatically opening or closing for quenching lid
It closes, the described first small burnt tank 9 is placed in the first coke quenching tank 8, and the second small burnt tank 17 is placed in the second coke quenching tank 16, is realized wet
Method coke pressure quenching；
The residual neat recovering system is by primary settler 22, baffle plate 23, the first surge tank 24, afterheat heat exchanger 25, clear
Ash system 26, steam pressure gauge 28, filter screen 29, sedimentation basin 30, circulation air-introduced machine 31, oxygen-eliminating device 32, removes steam buffer tank 27
Brine tank 33 and heat exchanger 34 form, and the primary settler 22 connects the first surge tank 24, and the first surge tank 24 connects waste heat
Heat exchanger 25, afterheat heat exchanger 25 are separately connected oxygen-eliminating device 32 and steam buffer tank 27, and the afterheat heat exchanger 25 passes through heat exchange
Device 34 and the connection circulation air-introduced machine 31 of vacuum extractor 35, the entrance of the circulation air-introduced machine 31 connect nitrogen pipeline 36, are following
Under the action of ring air-introduced machine 31, mixed gas carries out hot friendship with afterheat heat exchanger 25 in the first coke quenching tank 8 or the second coke quenching tank 16
Change realization heat recovery；
The gas recovery system by vacuum extractor 35, circulation air-introduced machine 31, Coal gas switch valve 19, nitrogen pipeline 36,
Coal gas detector 21 and coal gas surge tank 11 form, the outlet of the import connection vacuum extractor 35 of circulation air-introduced machine 31, circulation
The outlet connection nitrogen pipeline 36 and Coal gas switch valve 19 of air-introduced machine 31, are also connected with coal gas detector 21, and Coal gas switch valve 21 connects
Coal gas surge tank 11 is connect, the lower part of the 35 coal gas surge tank 11 of vacuum extractor connects sedimentation basin 30 by pipeline.
The coke pressure quenching system is also possible to N coke quenching tank composition by the first coke quenching tank 8 and the second coke quenching tank 16, the
One small burnt tank 9 is placed in the first coke quenching tank 8, and the second small burnt tank 17 is placed in the second coke quenching tank 16, and the small burnt tank of N is placed on
First quenching lid 7 is arranged at N coke quenching tank, the top of the first coke quenching tank 8, and the second quenching lid 15 is arranged at the top of the second coke quenching tank 16, and
And have elevating mechanism 6 at the top of quenching lid, control the opening and closing of quenching lid.
There is water pump 10 in the side of the first coke quenching tank 8 and the second coke quenching tank 16 in the coke pressure quenching system, and water pump 10 connects
Spray waterpipe is to the inside of the first coke quenching tank 8 and the second coke quenching tank 16, the top of first coke quenching tank 8 and the second coke quenching tank 16
There is switch valve 12, switch valve 20 is arranged at lower part, realizes switch operating between coke quenching tank, and the top of the first quenching lid 8 connects
Mobile platform 1 is connect, the top of the second quenching lid 15 connects mobile platform 2 14, realizes automatically opening and closing for coke quenching tank.
The centre of first coke quenching tank 8 and the second coke quenching tank 16 described in the residual neat recovering system passes through switch valve 1
Primary settler 22 is connected, there is baffle plate 23 in the inside of primary settler 22, and filter screen 29, the primary settler 22 are arranged at lower part
It is also connected with the first surge tank 24, the inside of the first surge tank 24 has filter screen 29 to connect sedimentation basin 30 by pipeline.
The first surge tank 24 connects afterheat heat exchanger 25 in the residual neat recovering system, and the inside of afterheat heat exchanger 25 has clearly
Ash system 26 after the jet chimney of afterheat heat exchanger 25 connects steam buffer tank 27, passes through steam pressure gauge 28 and connects user's steaming
Steam pipe road.
Afterheat heat exchanger 25 connects heat exchanger 34 and oxygen-eliminating device 32 in the residual neat recovering system, and the import of oxygen-eliminating device 32 connects
Connect the outlet of heat exchanger 34, the outlet of the import connection sweet-water tank 33 of heat exchanger 34.
The outlet connection circulation of the import of the outlet connection vacuum extractor 35 of the heat exchanger 34, vacuum extractor 35 is drawn
Blower 31, the outlet connection nitrogen pipeline 36 and Coal gas switch valve 19 of circulation air-introduced machine 31, is also connected with coal gas detector 21, coal gas
Switching valve 21 connects coal gas surge tank 11, and the lower part of the 35 coal gas surge tank 11 of vacuum extractor connects sedimentation basin by pipeline
30。
The coke guide 1 of the coke pressure quenching system intercepts red coke in small burnt tank (the first small burnt tank 9 and the second small burnt tank
17) in, small coke tank (the first small burnt tank 9 and the second small burnt tank 17) is placed in the burnt vehicle 3 of fortune, for transporting coke；The promotion
Machine 4, can be at coke quenching tank (the first coke quenching tank 8 and the second coke quenching tank 16) on the top of the first coke quenching tank 8 and the second coke quenching tank 16
Between move back and forth；The upper surface of described first coke quenching tank 8 and the second coke quenching tank 16 are quenching lid (the first quenching lids 7 and second
Quenching lid 15), the top of quenching lid (the first quenching lid 7 with the second quenching lid 15) connect elevating mechanism 6, realizes quenching lid (the
One quenching lid 7 and the second quenching lid 15) opening and closing；The quenching lid (the first quenching lid 7 and the second quenching lid 15)
Top has detection instrument 13 and spray waterpipe 38, spray waterpipe 38 to be connected to quenching lid (the first quenching lid 7 and the second quenching lid
15) inside；The side of the coke quenching tank (the first coke quenching tank 8 and the second coke quenching tank 16) is separately connected spray waterpipe 38, spray
Water pipe 38 connects water pump 10, there is electrically operated valve on spray waterpipe 38, realizes and automatically controls；First coke quenching tank 8 and
It is connected with switch valve between two coke quenching tanks 16, switches work for two coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16)
Make, the centre of two coke quenching tanks (the first coke quenching tank 8 with the second coke quenching tank 16) has pipeline to connect primary settler 22, and level-one settles
Device 22 connects the first surge tank 24 by switch valve 1, and the first surge tank 24 connects afterheat heat exchanger 25 by valve；Institute
It states afterheat heat exchanger 25 and connects vacuum extractor 35, the connection circulation air-introduced machine 31 of vacuum extractor 35, circulation air-introduced machine 31 goes out
Mouth is connected to the lower part of two coke quenching tanks (the first coke quenching tank 8 and the second coke quenching tank 16) by valve.
The residual neat recovering system is connected between the first surge tank 24 and vacuum extractor 35, and afterheat heat exchanger 25 recycles
The entrance connection oxygen-eliminating device 32 of water exports, and the outlet of entrance connection 34 interior conduit of heat exchanger of oxygen-eliminating device 32, heat exchanger 34 is intake
Pipeline connects 33 water supply system of sweet-water tank；The steam (vapor) outlet of the afterheat heat exchanger 3425 connects steam buffer tank 27, peace
Pipeline equipped with steam pressure gauge 28 connects user's jet chimney interface, and the gas recovery system is connected to vacuum extractor 35
Between coal gas surge tank 11；The exhaust gas after cooling enters vacuum extractor 35 after heat exchanger 34, enters after dehydration
Recycle air-introduced machine 31, the outlet connection coal gas detector 21 and switch valve 2 18 of circulation air-introduced machine 31, the coal gas detection
Instrument 21 predominantly detects gas content, and coal gas surge tank 11, the coke pressure quenching system are automatically switched to when detection data is met the requirements
System, which is transported, elevating mechanism 6 on burnt vehicle 3, elevating mechanism 6 is mainly used for the burnt vehicle 3 of driving fortune and walks, and elevating mechanism 6 is for small burnt tank
(the first small burnt tank 9 and the second small burnt tank 17) unloads coke use, and in addition there are also brake control systems, limit control on the burnt vehicle 3 of fortune
System has elevator 4, the first coke quenching tank 8 and the second coke quenching tank 16 in the quenching workshop of the coke pressure quenching system；Described first
The upper top of coke quenching tank 8 and the second coke quenching tank 16 is separately installed with detection instrument 13, air intake valve, safety-valve and spray waterpipe
38, spray waterpipe 38 first coke quenching tank 8 and second coke quenching tank 16 described in the inside of the first coke quenching tank 8 and the second coke quenching tank 16
Side and bottom connect spray waterpipe 38, have detection instrument 13, nitrogen pipeline 36 and motor-driven valve on the general pipeline of spray waterpipe 38
Door, spray waterpipe 38 are connected to the inside of the first coke quenching tank 8 and the second coke quenching tank 16, the described first small burnt tank 9 and the second small coke
Tank 17 is placed on the inside of the first coke quenching tank 8 and the second coke quenching tank 16, and the surrounding of the first small burnt tank 9 and the second small burnt tank 17 is covered with
Aperture, cooling water and steam can penetrate into inside coke when to spray, first coke quenching tank 8 and the second coke quenching tank 16
Outlet be connected separately with pneumatic switch valve, the centre of two pneumatic switch valves is connected to primary settler by pipeline
22, the lower part of first coke quenching tank 8 and the second coke quenching tank 16 is cycle gas entrance, is separately connected circulation air-introduced machine 31
The entrance with coal gas surge tank 11 is exported, in addition connection 21 table 13 of coal gas detector and valve, among described two coke quenching tanks
Pipeline connects primary settler 22, and primary settler 22 connects off-gas buffer tank by valve.Fire resisting is used in primary settler 22
Material knots, and cooling pipe is arranged at the lower part of settler, the coke powder small for cooling-sedimentation, the primary settler 22
Outlet connection 24 import of the first surge tank, 24 top of the first surge tank connect nitrogen pipeline 36 and detection instrument 13, and coke is arranged at lower part
Powder filter screen 29 and waste water discharge opening.The outlet of first surge tank 24 connection 3425 exhaust gas inlet of afterheat heat exchanger, waste heat change
The waste gas outlet of hot device 3425 connects vacuum extractor 35 through heat exchanger 34, and steam (vapor) outlet connects use after connecting steam buffer tank 27
Family jet chimney.The afterheat heat exchanger, 25 circulating water intakes connect oxygen-eliminating device 32, and oxygen-eliminating device 32 connects heat exchanger 34, heat exchange
Device 34 connects sweet-water tank 33 and pipeline, and the connection of vacuum extractor 35 recycles air-introduced machine 31, the circulation air-introduced machine 31
There is nitrogen pipeline 36 on inlet pipeline, electrically operated valve is installed on nitrogen pipeline 36, qualified coal is detected through coal gas detector 21
Gas is entered in coal gas surge tank 11, coke after cooling by Coal gas switch valve 19, passes through the first small coke of small burnt tank 9 or the second
Tank 17 and the burnt vehicle 33 of fortune are transported to after cool burnt platform 37 through Belt Conveying to warehouse for finished product.
Red coke in the present invention from coke oven is flowed into the first small burnt tank 9 transported on burnt vehicle 3 after the interception of coke guide 1
Or second in small burnt tank 17, transports after the first small coke tank 17 of small burnt tank 9 or the second transports quenching workshop by burnt vehicle 3, elevator 4
The top to the first coke quenching tank 8 or the second coke quenching tank 16 is promoted, the first quenching lid 7 and the second quenching lid 15 automatically open respectively,
Small coke tank is placed on the first coke quenching tank 8 or the second coke quenching tank 16 prepares quenching.
The first small burnt small burnt tank 17 of tank 9 or the second is placed on after coke quenching tank, and the first quenching lid 7 and the second quenching lid 15 are certainly
Dynamic to close, the spray system automatic spray of the first coke quenching tank 8 or the second coke quenching tank 16 generates steam and other mixed gas,
Under the action of recycling air-introduced machine 31, mixed gas enters afterheat heat exchanger 25 and carries out thermal energy exchange；Desalination from oxygen-eliminating device 32
Water generates steam after afterheat heat exchanger 25 and enters steam buffer tank 27 so as to user's use.
25 mixed gas is cooled to 180 DEG C or so after afterheat heat exchanger, passes through after being dehydrated into vacuum extractor 35
It recycles air-introduced machine 31 and enters coal gas surge tank 11, the low mixed gas of gas content is after switching valve 2 20 again through the first quenching
The bottom cycle of tank 8 or the second coke quenching tank 16 is cooling.
Red coke from coke oven is flowed into the small burnt tank transported on burnt vehicle 3 after the interception of coke guide 1, transports burnt vehicle 1 small
After burnt tank transports quenching workshop, elevator 4 promotes small burnt tank to the top of coke quenching tank, the first quenching lid 7 and the second quenching
Lid 15 automatically opens respectively, and small coke tank, which is placed in the first coke quenching tank 8 and the second coke quenching tank 16, prepares quenching.16, according to power
Benefit require 1 described in a kind of wet process coke pressure quenching and the new process of recovery waste heat and coal gas simultaneously.It is characterized in that the first small coke
The small burnt tank 17 of tank 9 or the second is placed on after coke quenching tank, and the first quenching lid 7 and the second quenching lid 15 are automatically closed, the first quenching
The spray system automatic spray of tank 8 or the second coke quenching tank 16 generates steam and other mixed gas, in the work of circulation air-introduced machine 31
Under, mixed gas enters afterheat heat exchanger 25 and carries out thermal energy exchange；Demineralized water from oxygen-eliminating device 32 is through afterheat heat exchanger 25
Steam is generated afterwards enters steam buffer tank 27 so as to user's use.
25 mixed gas is cooled to 180 DEG C or so after afterheat heat exchanger, passes through after being dehydrated into vacuum extractor 35
It recycles air-introduced machine 31 and enters coal gas surge tank 11,
The low mixed gas of gas content bottom through the first coke quenching tank 8 or the second coke quenching tank 16 again after switching valve 2 20
Portion's circulating cooling.18, a kind of wet process coke pressure quenching according to claim 1 and the simultaneously new work of recovery waste heat and coal gas
Skill.It is characterized in that the coal gas through coal gas detector test qualification, is entered in coal gas surge tank 11 by Coal gas switch valve 19.It is cold
But the coke after is transported to after cool burnt platform 37 by the first small coke tank 17 of small burnt tank 9 or the second and the burnt vehicle 3 of fortune through Belt Conveying
To warehouse for finished product.
The foregoing describe basic principles and main features of the invention, It should be understood by those skilled in the art that of the invention
It is not restricted to the described embodiments, the above embodiments and description only illustrate the principle of the present invention, is not departing from
Under the premise of spirit and scope of the invention, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement
In the scope of the invention of protection, invents claimed range and be defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of wet process coke pressure quenching waste heat and gas recovery system, including coke pressure quenching system, residual neat recovering system and coal gas
Recovery system composition, the coke pressure quenching system by coke guide, track, transport burnt vehicle, elevator, mobile platform one, elevating mechanism,
First coke quenching tank, the first small burnt tank, mobile platform two, the second coke quenching tank, the second small burnt tank, water pump, switch valve one, switching valve
First quenching lid arranged at door two, primary settler, baffle plate, the composition such as first surge tank, the top of first coke quenching tank, and second
Second quenching lid is arranged at the top of coke quenching tank, and the first quenching lid and the second coke quenching tank are separately connected elevating mechanism, elevating mechanism connection
On a mobile platform, being automatically opened or closed for quenching lid is realized, the described first small burnt tank is placed in the first coke quenching tank, and second
Small coke tank is placed in the second coke quenching tank；
The residual neat recovering system is delayed by primary settler, baffle plate, the first surge tank, afterheat heat exchanger, soot cleaning system, steam
Rush tank, steam pressure gauge, filter screen, sedimentation basin, circulation air-introduced machine, oxygen-eliminating device, sweet-water tank and heat exchanger composition, the level-one
Settler connects the first surge tank, and the first surge tank connects afterheat heat exchanger, and afterheat heat exchanger is separately connected oxygen-eliminating device and steam
Surge tank, the afterheat heat exchanger are entered by heat exchanger and vacuum extractor connection circulation air-introduced machine, the circulation air-introduced machine
Mouth connection nitrogen pipeline, under the action of recycling air-introduced machine, mixed gas is changed in the first coke quenching tank or the second coke quenching tank with waste heat
Hot device carries out heat exchange and realizes heat recovery；
The gas recovery system by vacuum extractor, circulation air-introduced machine, Coal gas switch valve, nitrogen pipeline, coal gas detector and
Coal gas surge tank composition recycles the outlet of the import connection vacuum extractor of air-introduced machine, recycles the outlet connection nitrogen of air-introduced machine
Pipeline and Coal gas switch valve, are also connected with coal gas detector, and Coal gas switch valve connects coal gas surge tank, the vacuum extractor coal gas
The lower part of surge tank connects sedimentation basin by pipeline.
2. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that the pressure
Power quenching system is also possible to N coke quenching tank composition by the first coke quenching tank and the second coke quenching tank, and the first small burnt tank is placed on first
In coke quenching tank, the second small burnt tank is placed in the second coke quenching tank, and the small burnt tank of N is placed on N coke quenching tank, the top of the first coke quenching tank
There is the first quenching lid in portion, has the second quenching lid at the top of the second coke quenching tank, and have elevating mechanism at the top of quenching lid, control is put out
The opening and closing of Jiao Gai.
3. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that the pressure
There is a water pump in the side of the first coke quenching tank and the second coke quenching tank in power quenching system, water pump connect spray waterpipe to the first coke quenching tank and
Switch valve is arranged at the top of the inside of the second coke quenching tank, first coke quenching tank and the second coke quenching tank, and switch valve is arranged at lower part, real
Switch operating between existing coke quenching tank, the top of the first quenching lid connect mobile platform one, the top connection of the second quenching lid
Mobile platform two.
4. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that described remaining
The centre of first coke quenching tank and the second coke quenching tank described in heat recovery system connects primary settler, level-one by switch valve one
There is baffle plate in the inside of settler, and filter screen is arranged at lower part, and the primary settler is also connected with the first surge tank, the first surge tank
Inside has filter screen to connect sedimentation basin by pipeline.
5. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that described remaining
The first surge tank connects afterheat heat exchanger in heat recovery system, and there is soot cleaning system in the inside of afterheat heat exchanger, afterheat heat exchanger
After jet chimney connects steam buffer tank, user's jet chimney is connected by steam pressure gauge.
6. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that described remaining
Afterheat heat exchanger connection heat exchanger and oxygen-eliminating device in heat recovery system, the outlet of the import connection heat exchanger of oxygen-eliminating device, heat exchanger
Import connection sweet-water tank outlet.
7. a kind of wet process coke pressure quenching waste heat according to claim 1 and gas recovery system, which is characterized in that described to change
The import of the outlet connection vacuum extractor of hot device, the outlet connection circulation air-introduced machine of vacuum extractor, recycles going out for air-introduced machine
Mouth connection nitrogen pipeline and Coal gas switch valve, are also connected with coal gas detector, and Coal gas switch valve connects coal gas surge tank, the vacuum
The lower part of dehydrator coal gas surge tank connects sedimentation basin by pipeline.
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| CN109575960B (en) | 2024-06-11 |
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