CN206646064U - A kind of dry coke quenching auxiliary - Google Patents

A kind of dry coke quenching auxiliary Download PDF

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Publication number
CN206646064U
CN206646064U CN201720305316.0U CN201720305316U CN206646064U CN 206646064 U CN206646064 U CN 206646064U CN 201720305316 U CN201720305316 U CN 201720305316U CN 206646064 U CN206646064 U CN 206646064U
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CN
China
Prior art keywords
coke
waste heat
dry
filter
air inlet
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Expired - Fee Related
Application number
CN201720305316.0U
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Chinese (zh)
Inventor
姜乃斌
于民
宋会卿
王秀英
张旺
周梁
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Xian Huajiang Environmental Technologies Co Ltd
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Xian Huajiang Environmental Technologies Co Ltd
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Priority to CN201720305316.0U priority Critical patent/CN206646064U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The utility model discloses a kind of dry coke quenching auxiliary, including at least coke dry quenching furnace, disposable dust remover, waste heat boiler, secondary filter, circulating fan and feed water preheater, the import of described disposable dust remover communicates with coke dry quenching furnace gas outlet, and the outlet of disposable dust remover communicates with the air inlet of waste heat boiler;Between the gas outlet of waste heat boiler and the air inlet of circulating fan, the import of secondary filter communicates described secondary filter with the gas outlet of waste heat boiler, and the outlet of secondary filter communicates with the air inlet of circulating fan;There are feed water preheater and clean unit between circulating fan and the air inlet of coke dry quenching furnace.The device can effectively remove carbon dioxide, water and sulfide in recyclegas, have the advantages of decontamination cycle gas, safety coefficient are high, coke burning rate is low, red burnt waste heat recovery rate is high and dry coke quenching auxiliary service life is long.

Description

A kind of dry coke quenching auxiliary
Technical field
It the utility model is related to a kind of coke coke quenching device, particularly a kind of dry coke quenching auxiliary.
Background technology
Dry Quenching Technology is the promotional technique of an energy-conserving and environment-protective, i.e., dry coke quenching is red by the cooling of inert recyclegas Jiao, recovery heat production vapor, caused vapor can be used for generate electricity or pressure and temperature reducing after for other workshops use, avoid A series of environmental pollutions that coke wet quenching is brought.The low-temperature circulating gas of coke is cooled down, in coke dry quenching furnace cooling section and red burnt convection current Temperature is increased to 900 ~ 960 DEG C after heat exchange, and high temperature circulation gas comes out from the annular passage of coke dry quenching furnace, by disposable dust remover point Heat exchange is carried out from waste heat boiler is entered after coarse granule coke powder, waste heat boiler produces steam, and temperature is down to about 160 ~ 180 DEG C and followed Ring gas through the further separate fine particles coke powder of secondary filter, is sent into feed water preheater and is cooled to again after being pressurizeed by circulating fan About 130 DEG C, enter back into coke dry quenching furnace and recycle.
Because the negative pressure section of gas-circulating system can sternly not leak into a small amount of air because of air-tightness, oxygen will by red focus layer Carbon dioxide is generated with coke gasification reaction, carbon dioxide can be reduced into carbon monoxide again in coke layer high-temperature region, with cycle-index Increase, the carbonomonoxide concentration in recyclegas can be more and more high;In addition, coke dry quenching furnace, when filling burnt, coke dry quenching furnace mouth is repeatedly Opening and closing can also leak into a small amount of air.In addition, in coke dry quenching furnace, red-hot red burnt remaining volatile matter is separating out all the time, Jiao per ton Charcoal about produces 10 ~ 20Nm3Escaping gas, the pyrogenous origin hydrogen of coke, carbon monoxide, methane etc. be also all inflammable and explosive Composition, thus dry coke quenching operation in, be control recyclegas in combustible component concentration below explosion limit, through frequently with Importing air method burns the combustible component in recyclegas, it is generated carbon dioxide and water, the carbon dioxide and water of generation Carbon monoxide and hydrogen are reduced into again by coke layer high-temperature region, is circulated successively, and the cycle gas composition scope of this method is as follows: N2:72~83%, CO2:6~12%, CO:< 6%, H2:< 3%, O2:< 1%, SO×:30~50PPm.
Utility model content
The purpose of this utility model is to provide a kind of decontamination cycle gas, safety coefficient height, coke burning rate is low, efficiently returns Receive the dry coke quenching auxiliary grown using red burnt waste heat and service life.
The purpose of this utility model is achieved in that a kind of dry coke quenching auxiliary, including at least coke dry quenching furnace, one-time dedusting Device, waste heat boiler, secondary filter, circulating fan and feed water preheater, import and the coke dry quenching furnace of described disposable dust remover go out Gas port communicates, and the outlet of disposable dust remover communicates with the air inlet of waste heat boiler;Described secondary filter is located at waste heat boiler Gas outlet and circulating fan air inlet between, the import of secondary filter communicates with the gas outlet of waste heat boiler, secondary to remove The outlet of dirt device communicates with the air inlet of circulating fan;Have between circulating fan and the air inlet of coke dry quenching furnace feed water preheater and Clean unit.
The clean unit gas outlet is provided with dust filter unit, filters out what recyclegas was entrained with by dust filter unit Particle.
Described dust filter unit rear end is provided with desulfurizing tower.
Described feed water preheater gas outlet is provided with gas-liquid separator, and its lowest position is provided with discharge opeing inside feed water preheater Point.
Described clean unit uses molecular sieve, and the carbon dioxide and water in recyclegas are removed by molecular sieve adsorption.
The beneficial effects of the utility model are:Preferably will be net according to dry coke quenching process characteristic and the principle features of gas purification Change unit to be arranged between feed water preheater and coke dry quenching furnace, and preferably select molecular sieve adsorption, can remove 99.9% in recyclegas Carbon dioxide and water above, avoid the carbon dioxide in recyclegas and water and be reduced into an oxygen by the high-temperature region of coke layer Change carbon and hydrogen so that imflammable gas concentration incrementss substantially reduce, and improve the safety loading coefficient of dry coke quenching auxiliary, simultaneously Coke burning rate is reduced, improves the cold burnt yield of dry coke quenching, regenerating molecular sieve is convenient in addition, and the carbon dioxide for regenerating desorption can , can also be as the gasifying agent of coal or coke gasification, protection gas etc. as the raw material of urea, soda ash and dry ice, and regenerate de- Attached water then humidifies water source as the coke powder of dry quenched coke powder reclaiming device, has saved industrial water;Desulfurization after clean unit Tower is substantially stripped of sulfide a small amount of in recyclegas, makes the reduction of recyclegas dew-point temperature so that feed water preheater energy The waste heat of enough fully recovery recyclegas, improves the red burnt waste heat recovery rate of dry coke quenching auxiliary, while can reduce dry coke quenching auxiliary The corrosion of middle equipment and pipeline, extend its service life.
Brief description of the drawings
With reference to embodiment accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment accompanying drawing process unit schematic diagram.
In figure, 1, coke dry quenching furnace;2nd, disposable dust remover;3rd, waste heat boiler;4th, secondary filter;5th, circulating fan;6th, feed water Preheater;7th, gas-liquid separator;8th, clean unit;9th, dust filter unit;10th, desulfurizing tower.
Embodiment
Embodiment 1
As shown in figure 1, a kind of novel dry quenching device, including at least coke dry quenching furnace 1, disposable dust remover 2, waste heat boiler 3, two Secondary deduster 4, circulating fan 5 and feed water preheater 6, the import of described disposable dust remover 2 communicate with the gas outlet of coke dry quenching furnace 1, The outlet of disposable dust remover 2 communicates with the air inlet of waste heat boiler 3;Described secondary filter 4 is located at the outlet of waste heat boiler 3 Between mouth and the air inlet of circulating fan 5, the import of secondary filter 4 communicates with the gas outlet of waste heat boiler 3, secondary filter 4 outlet communicates with the air inlet of circulating fan 5;There is feed water preheater 6 between circulating fan 5 and the air inlet of coke dry quenching furnace 1 With clean unit 8.
Concrete technology flow process is as follows:Purified unit 8 carries out the low-temperature circulating gas entrance after carbon dioxide removal and water In coke dry quenching furnace 1,900 ~ 960 DEG C are increased to temperature after the red burnt heat convection of the cooling section of coke dry quenching furnace 1, high temperature circulation gas carries Coke powder comes out from the annular passage of coke dry quenching furnace 1, is carried out after disposable dust remover 2 separates coarse granule coke powder into waste heat boiler 3 Heat exchange, recyclegas temperature is down to 160 ~ 180 DEG C and enters the further separate fine particles coke powder of secondary filter 4, by circulated air Machine 5 is sent into 6 further recovery waste heat of feed water preheater after pressurizeing, and recyclegas temperature is further reduced to 30 ~ 80 DEG C, Ran Houjin Enter the carbon dioxide removal of clean unit 8 and water, the recyclegas after purification, which enters in coke dry quenching furnace 1, to be recycled.
Described clean unit 8 uses molecular sieve, and the carbon dioxide and water in recyclegas are removed by molecular sieve adsorption.
Embodiment 2
As shown in figure 1, a kind of novel dry quenching device, including at least coke dry quenching furnace 1, disposable dust remover 2, waste heat boiler 3, two Secondary deduster 4, circulating fan 5 and feed water preheater 6, the import of described disposable dust remover 2 communicate with the gas outlet of coke dry quenching furnace 1, The outlet of disposable dust remover 2 communicates with the air inlet of waste heat boiler 3;Described secondary filter 4 is located at the outlet of waste heat boiler 3 Between mouth and the air inlet of circulating fan 5, the import of secondary filter 4 communicates with the gas outlet of waste heat boiler 3, secondary filter 4 outlet communicates with the air inlet of circulating fan 5;There is feed water preheater 6 between circulating fan 5 and the air inlet of coke dry quenching furnace 1 With clean unit 8.
Concrete technology flow process is as follows:Purified unit 8 carries out the low-temperature circulating gas entrance after carbon dioxide removal and water In coke dry quenching furnace 1,900 ~ 960 DEG C are increased to temperature after the red burnt heat convection of the cooling section of coke dry quenching furnace 1, high temperature circulation gas carries Coke powder comes out from the annular passage of coke dry quenching furnace 1, is carried out after disposable dust remover 2 separates coarse granule coke powder into waste heat boiler 3 Heat exchange, recyclegas temperature is down to 160 ~ 180 DEG C and enters the further separate fine particles coke powder of secondary filter 4, by circulated air Machine 5 is sent into 6 further recovery waste heat of feed water preheater after pressurizeing, and recyclegas temperature is further reduced to 30 ~ 80 DEG C, Ran Houjin Enter the carbon dioxide removal of clean unit 8 and water, the recyclegas after purification, which enters in coke dry quenching furnace 1, to be recycled.
Further optimizing is:Dust filter unit 9 is provided with the gas outlet of clean unit 8, is filtered out and followed by dust filter unit 9 The particle that ring gas is entrained with.
Further optimization, it is that the described rear end of dust filter unit 9 is provided with desulfurizing tower 10, desulfurizing tower 10 removes recyclegas In a small amount of sulfide, reduce the dew-point temperature of recyclegas, make the increase of dry coke quenching waste heat recovery volume, greatly reduce simultaneously The corrosion of dry coke quenching equipment and pipeline, extend its service life.
The described gas outlet of feed water preheater 6 is provided with gas-liquid separator 7, and the inside its lowest position of feed water preheater 7 is provided with Drainage point, the water that liquid is condensed into recyclegas is sent to dry quenched coke powder reclaiming device humidification coke powder, saves production With water, while reduce the water content that recyclegas enters follow-up clean unit 8.
Because molecular sieve and charcoal absorption and desorption are capable technologies commonly used in the trade, it is not elaborated herein.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and used exemplary Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality With new protection domain.The part and the well-known components and common structure of the structure category industry that the present embodiment does not describe in detail Or conventional means, do not describe one by one here.

Claims (5)

1. a kind of dry coke quenching auxiliary, it is characterized in that:Including at least coke dry quenching furnace(1), disposable dust remover(2), waste heat boiler(3), two Secondary deduster(4), circulating fan(5)And feed water preheater(6), described disposable dust remover(2)Import and coke dry quenching furnace(1)Go out Gas port communicates, disposable dust remover(2)Outlet and waste heat boiler(3)Air inlet communicate;Described secondary filter(4)It is located at Waste heat boiler(3)Gas outlet and circulating fan(5)Air inlet between, secondary filter(4)Import and waste heat boiler(3) Gas outlet communicate, secondary filter(4)Outlet and circulating fan(5)Air inlet communicate;In circulating fan(5)Put out with dry Stove(1)Air inlet between have feed water preheater(6)And clean unit(8).
2. a kind of dry coke quenching auxiliary according to claim 1, it is characterized in that:Described clean unit(8)Gas outlet is provided with Dust filter unit(9), pass through dust filter unit(9)Filter out the particle that recyclegas is entrained with.
3. a kind of dry coke quenching auxiliary according to claim 2, it is characterized in that:Described dust filter unit(9)Rear end is provided with Desulfurizing tower(10).
4. a kind of dry coke quenching auxiliary according to claim 1, it is characterized in that:Described feed water preheater(6)Gas outlet is set There is gas-liquid separator(7), feed water preheater(7)Internal its lowest position is provided with drainage point.
5. a kind of dry coke quenching auxiliary according to claim 1, it is characterized in that:Described clean unit(8)Using molecular sieve, Carbon dioxide and water in recyclegas is removed by molecular sieve adsorption.
CN201720305316.0U 2017-03-27 2017-03-27 A kind of dry coke quenching auxiliary Expired - Fee Related CN206646064U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720305316.0U CN206646064U (en) 2017-03-27 2017-03-27 A kind of dry coke quenching auxiliary

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110806113A (en) * 2019-11-25 2020-02-18 北京科技大学 Method and device for reducing energy consumption by introducing gas into submerged arc furnace
CN111676028A (en) * 2020-06-08 2020-09-18 首钢集团有限公司 System and method for reducing coke burning loss rate in dry quenching furnace
CN112552932A (en) * 2020-11-13 2021-03-26 新兴铸管股份有限公司 Dry quenching furnace circulating waste gas purification system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110806113A (en) * 2019-11-25 2020-02-18 北京科技大学 Method and device for reducing energy consumption by introducing gas into submerged arc furnace
CN110806113B (en) * 2019-11-25 2020-08-25 北京科技大学 Method and device for reducing energy consumption by introducing gas into submerged arc furnace
CN111676028A (en) * 2020-06-08 2020-09-18 首钢集团有限公司 System and method for reducing coke burning loss rate in dry quenching furnace
CN112552932A (en) * 2020-11-13 2021-03-26 新兴铸管股份有限公司 Dry quenching furnace circulating waste gas purification system

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Granted publication date: 20171117

Termination date: 20200327