CN205627628U - Low temperature coke oven smoke SOx/NOx control integrated device - Google Patents
Low temperature coke oven smoke SOx/NOx control integrated device Download PDFInfo
- Publication number
- CN205627628U CN205627628U CN201620393534.XU CN201620393534U CN205627628U CN 205627628 U CN205627628 U CN 205627628U CN 201620393534 U CN201620393534 U CN 201620393534U CN 205627628 U CN205627628 U CN 205627628U
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- China
- Prior art keywords
- flue gas
- gas
- heat
- heat pipe
- coke oven
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- 239000000571 coke Substances 0.000 title claims abstract description 20
- 239000000779 smoke Substances 0.000 title claims abstract description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003546 flue gas Substances 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 36
- 239000002918 waste heat Substances 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 14
- 229910021529 ammonia Inorganic materials 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000008676 import Effects 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 abstract 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract 2
- 238000003795 desorption Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a low temperature coke oven smoke SOx/NOx control integrated device, the coke oven smoke export links to each other with well low temperature SCR reactor entry through flue gas pipeline, be equipped with ammonia injection grid between coke oven smoke export and the well low temperature SCR reactor, the flue outlet of well low temperature SCR reactor connects waste heat recovery device, waste heat recovery device links to each other with heat pipe formula gas gas heater heat side flue gas inlet, heat pipe formula gas gas heater heat side exhanst gas outlet in proper order with the draught fan, the desulfurizing tower is connected, the gas outlet of desulfurizing tower is imported and exported with heat pipe formula gas gas heater cold side flue gas in proper order, crude tobacco chimney intercommunication, heat pipe formula gas gas heater heat side flue gas import and export and connect waste heat recovery device, draught fan respectively, heat pipe formula gas gas heater cold side flue gas is imported and exported and is connected desulfurizing tower, crude tobacco chimney respectively. The utility model discloses an utilize the equitable arrangement process route of temperature gradient, the NOX in the desorption flue gas, SO2 realize coke oven smoke's comprehensive control reducing flue gas heating link, reduce the investment working costs.
Description
Technical field
This utility model relates to the technical field of industrial smoke environmental protection treatment, specifically a kind of coalitenessity kiln gas desulphurization denitration one
Body gasifying device.
Background technology
Traditional industry denitrating flue gas typically use in high temperature SCR denitration, middle high temperature SCR denitration temperature requirement more than 300 DEG C,
Coking industry exhaust gas temperature is typically at 250～300 DEG C, and therefore coke oven flue gas needs heating to improve flue-gas temperature to meet before denitration
Denitration temperature requirement.
No matter desulfurization uses wet desulphurization or semi-dry desulphurization, and temperature has bigger loss, therefore the coke oven cigarette after denitration
Temperature has and significantly reduces, and the flue gas after desulphurization denitration causes the former smoke stack emission of coke oven, for ensureing the draft foot of chimney
To maintain the properly functioning of original system, it is hot standby to improve flue-gas temperature that heater etc. need to be set before chimney.
Either coke oven exit gas temperature need to meet middle high temperature SCR denitration temperature requirement, still causes the former chimney smoke of coke oven
Temperature need to ensure the draft of chimney, is intended to additionally consume energy consumption to improve flue-gas temperature.
Utility model content
The purpose of this utility model is to provide a kind of coalitenessity kiln gas denitration integrated device, to solve above-mentioned background
The problem proposed in technology.This utility model is according to low temperature SCR denitration, waste heat recovery, flue gas in the employing of coke oven flue gas feature
Heat exchange, wet desulphurization integration route.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of coalitenessity kiln gas denitration integrated device, returns including ammonia-spraying grid, middle low-temperature SCR reactor, waste heat
Receiving apparatus, heat pipe-type flue gas heat-exchange unit, air-introduced machine, the former chimney of desulfurizing tower, coke oven flue gas outlet by flue with in low
Temperature SCR reactor inlet is connected, and is provided with ammonia-spraying grid between the outlet of described coke oven flue gas and middle low-temperature SCR reactor, described
The flue outlet of middle low-temperature SCR reactor connects waste-heat recovery device, described waste-heat recovery device and heat pipe-type flue gas heat-exchange unit
Hot side gas approach is connected, and described heat pipe-type flue gas heat-exchange unit hot side exhanst gas outlet is connected with air-introduced machine, desulfurizing tower successively, institute
Gas outlet side cold with heat pipe-type flue gas heat-exchange unit smoke entrance, the former chimney successively of stating desulfurizing tower connect, described heat pipe-type
Flue gas heat-exchange unit hot side smoke entrance connects waste-heat recovery device, air-introduced machine, heat pipe-type flue gas heat-exchange unit cold side flue gas respectively
Import and export and connect desulfurizing tower, former chimney respectively.
Preferably, the catalyst in described middle low-temperature SCR reactor uses two-layer to install catalyst, reserves for one layer and does not installs,
Or three layers catalyst, one layer of reserved pattern do not installed, i.e. " 2+1 " layer or " 3+1 " layer design pattern are installed.
Compared with prior art, the beneficial effects of the utility model are:
1, high temperature SCR denitration technology during low temperature SCR denitration technology replaces in coking industry uses, middle low temperature SCR denitration
Temperature requirement, between 180～300 DEG C, can be directly connected to coking boiler and carry out denitration, it is not necessary to be hot standby.Reduce flue gas ring
Joint, reduces investment operating cost.
2, the flue gas after purifying causes the former smoke stack emission of coke oven, and flue-gas temperature requires more than 140 DEG C, first carries out waste heat recovery
Produce steam, the flue gas out of the flue gas desulfurizing tower after recycling waste heat recovery, both can increase project yield, it is possible to fall
Low system operation energy consumption.
3, a kind of close-coupled processing technology of coalitenessity kiln gas is provided, by utilizing thermograde reasonably to arrange process route,
NO in removing flue gasX、SO2, it is achieved the comprehensive control of coke oven flue gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of coalitenessity kiln gas denitration integrated device.
1, ammonia-spraying grid；2, middle low-temperature SCR reactor；3, catalyst；4, waste-heat recovery device；5, heat pipe-type cigarette
Gas heat exchanger；6, air-introduced machine；7 desulfurizing towers；8, former chimney
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, a kind of coalitenessity kiln gas denitration integrated device, including spray
Ammonia grid 1, middle low-temperature SCR reactor 2, waste-heat recovery device 4, heat pipe-type flue gas heat-exchange unit 5, air-introduced machine 6, desulfurization
Tower 7 and former chimney 8, coke oven flue gas outlet is connected with middle low-temperature SCR reactor 2 entrance by flue, described coke oven
Ammonia-spraying grid 1, the catalysis in described middle low-temperature SCR reactor 2 it is provided with between exhanst gas outlet and middle low-temperature SCR reactor 2
Agent 3 uses two-layer to install catalyst, reserves for one layer and does not installs, or three layers are installed catalyst, one layer of reserved mould do not installed
Formula, i.e. " 2+1 " layer or " 3+1 " layer design pattern.
The flue outlet of described middle low-temperature SCR reactor 2 connects waste-heat recovery device 4, described waste-heat recovery device 4 and heat
Tubular type flue gas heat-exchange unit 5 hot side gas approach be connected, described heat pipe-type flue gas heat-exchange unit 5 hot side exhanst gas outlet successively with air inducing
Machine 6, desulfurizing tower 7 connect, the gas outlet of described desulfurizing tower 7 side cold with heat pipe-type flue gas heat-exchange unit 5 smoke entrance successively,
Former chimney 8 connects.
Described heat pipe-type flue gas heat-exchange unit 5 hot side smoke entrance connects waste-heat recovery device 4, air-introduced machine 6 respectively, heat
Tubular type flue gas heat-exchange unit 5 cold side smoke entrance connects desulfurizing tower 7, former chimney 8 respectively.
Operation principle: temperature 250～300 DEG C of coke oven flue gas in flue with the reducing agent gas that sprays in ammonia-spraying grid 1
After ammonia uniformly mixes, in entrance, low temperature SCR denitration reactor 2 carries out denitration, by NO under the effect of catalyst 3XReduction
For N2And H2O, the flue gas after denitration enters waste-heat recovery device 4 and carries out heat recovery, and the flue gas after denitration returns through waste heat
After receipts, temperature is 192～198 DEG C, and the purification entering heat pipe-type flue gas heat-exchange unit 5 and desulfurizing tower 7 out 75～85 DEG C reaches
Mark flue gas carries out heat exchange, flue gas up to standard for purification lifts temperature to more than 140 DEG C cause former chimney 8 and discharges, heat pipe-type flue gas heat exchange
Device 5 hot side sulfur-containing smoke gas (i.e. from the flue gas of waste-heat recovery device) temperature is down to 122～128 DEG C, utilizes air-introduced machine 6 to incite somebody to action
Flue gas causes desulfurizing tower 7 desulfurization.
Described gas ammonia is produced by liquefied ammonia evaporation, it is possible to produced by ammonia atomization.
Described desulfurizing tower 7 uses the ammonia process of desulfurization, it is possible to use semidry method replaces, but must increase dust removing units after desulfurizing tower.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.
Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (1)
1. a coalitenessity kiln gas denitration integrated device, it is characterised in that include ammonia-spraying grid, middle low-temperature SCR
Reactor, waste-heat recovery device, heat pipe-type flue gas heat-exchange unit, air-introduced machine, desulfurizing tower and former chimney, coke oven flue gas outlet is logical
Cross flue to be connected with middle low-temperature SCR reactor inlet, set between the outlet of described coke oven flue gas and middle low-temperature SCR reactor
Having ammonia-spraying grid, the flue outlet of described middle low-temperature SCR reactor connects waste-heat recovery device, described waste-heat recovery device with
Heat pipe-type flue gas heat-exchange unit hot side gas approach be connected, described heat pipe-type flue gas heat-exchange unit hot side exhanst gas outlet successively with air inducing
Machine, desulfurizing tower connect, the gas outlet of described desulfurizing tower side cold with heat pipe-type flue gas heat-exchange unit smoke entrance, former chimney successively
Connection, described heat pipe-type flue gas heat-exchange unit hot side smoke entrance connects waste-heat recovery device, air-introduced machine, heat pipe-type respectively
Flue gas heat-exchange unit cold side smoke entrance connects desulfurizing tower, former chimney respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393534.XU CN205627628U (en) | 2016-05-03 | 2016-05-03 | Low temperature coke oven smoke SOx/NOx control integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393534.XU CN205627628U (en) | 2016-05-03 | 2016-05-03 | Low temperature coke oven smoke SOx/NOx control integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205627628U true CN205627628U (en) | 2016-10-12 |
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|---|---|---|---|
| CN201620393534.XU Active CN205627628U (en) | 2016-05-03 | 2016-05-03 | Low temperature coke oven smoke SOx/NOx control integrated device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268306A (en) * | 2016-10-20 | 2017-01-04 | 湖南野森环保科技有限责任公司 | A kind of environmental protection equipment of coal desulfurization denitrogenation |
| CN108088271A (en) * | 2017-12-13 | 2018-05-29 | 北京铝能清新环境技术有限公司 | A kind of carbon element rotary kiln calcining flue gas purification system and its purification method |
| CN108686504A (en) * | 2017-04-05 | 2018-10-23 | 辽宁中弘信冶金技术有限公司 | The processing system and method for flue gases of cock oven |
| CN108744918A (en) * | 2018-06-14 | 2018-11-06 | 鞍钢股份有限公司 | System and process for realizing efficient denitration of coke oven flue gas by using waste heat of raw gas |
| CN117606252A (en) * | 2023-11-23 | 2024-02-27 | 河北天越激光再制造科技有限公司 | Device capable of replacing GGH heat exchanger to heat clean flue gas |
-
2016
- 2016-05-03 CN CN201620393534.XU patent/CN205627628U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268306A (en) * | 2016-10-20 | 2017-01-04 | 湖南野森环保科技有限责任公司 | A kind of environmental protection equipment of coal desulfurization denitrogenation |
| CN108686504A (en) * | 2017-04-05 | 2018-10-23 | 辽宁中弘信冶金技术有限公司 | The processing system and method for flue gases of cock oven |
| CN108088271A (en) * | 2017-12-13 | 2018-05-29 | 北京铝能清新环境技术有限公司 | A kind of carbon element rotary kiln calcining flue gas purification system and its purification method |
| CN108744918A (en) * | 2018-06-14 | 2018-11-06 | 鞍钢股份有限公司 | System and process for realizing efficient denitration of coke oven flue gas by using waste heat of raw gas |
| CN117606252A (en) * | 2023-11-23 | 2024-02-27 | 河北天越激光再制造科技有限公司 | Device capable of replacing GGH heat exchanger to heat clean flue gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An integrated device for desulfurization and denitrification of low-temperature coke oven flue gas Effective date of registration: 20231211 Granted publication date: 20161012 Pledgee: Bank of China Limited Jingzhou Branch Pledgor: HUBEI SIBOYING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2023980070472 |