CN105802639A - Coke dry quenching furnace diffused gas treatment method - Google Patents
Coke dry quenching furnace diffused gas treatment method Download PDFInfo
- Publication number
- CN105802639A CN105802639A CN201610308864.9A CN201610308864A CN105802639A CN 105802639 A CN105802639 A CN 105802639A CN 201610308864 A CN201610308864 A CN 201610308864A CN 105802639 A CN105802639 A CN 105802639A
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- CN
- China
- Prior art keywords
- gas
- coke oven
- coke
- quenching furnace
- dry quenching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000571 coke Substances 0.000 title claims abstract description 127
- 238000010791 quenching Methods 0.000 title claims abstract description 56
- 230000000171 quenching effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 48
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000003672 processing method Methods 0.000 claims description 11
- 239000012895 dilution Substances 0.000 claims description 6
- 238000010790 dilution Methods 0.000 claims description 6
- 238000009795 derivation Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 108
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 17
- 238000004939 coking Methods 0.000 abstract description 5
- 239000002912 waste gas Substances 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material 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
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/06—Heating of coke ovens with combustible gases in coke ovens suitable for the use of lean gas or rich gas
-
- 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
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/08—Heating of coke ovens with combustible gases by applying special heating gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a coke dry quenching furnace diffused gas treatment method. A diffused gas leading main tube and a rotation speed adjustable draft fan which are connected with a coke dry quenching furnace diffusion tube are adopted to feed a coke dry quenching furnace diffused gas into a coke oven heating system; the coke oven heating system is a lean gas heating system or rich gas heating system; the flow of the coke dry quenching furnace diffused gas fed into the coke oven heating system is adjusted through a diffused gas flow control valve on the diffused gas leading main tube. As the coke dry quenching furnace diffused gas is introduced into a coke oven combustion chamber to participate in combustion again, so that not only is the problem of emission of the coke dry quenching furnace diffused gas solved, but also the content of nitric oxide in a coke oven emission waste gas can be effectively reduced, the environment pollution of a coking plant can be reduced, and environment-friendly operation of the coking plant can be achieved.
Description
Technical field
The present invention relates to coking environmental technology field, particularly relate to a kind of processing method being capable of coke dry quenching furnace dispersing gas clean utilization.
Background technology
Along with the development of coking technology, current coke-oven plant all auxiliary construction dry coke quenching equipments, cryogenic inert gas is utilized to cool down red Jiao.In dry coke quenching process, for keeping the even running of whole dry coke quenching equipment, it is necessary to constantly supplement air, part recyclegas is diffused simultaneously.Coke dry quenching furnace dispersing gas contains nitrogen, hydrogen, sulfur dioxide, carbon monoxide and dust etc..At present this part dispersing gas is recycled but without effective method, can only directly discharge, cause environmental pollution, not meet national environmental protection policy.Therefore, the process of this partial discharge gas is just seemed particularly urgent.
On the other hand, national policy is also more and more higher to the environmental requirement of coking industry, especially that the emission limit of coke oven nitrogen oxides is more and more stricter.Current coke oven discharge waste gas controls to control in technology mainly burning technology and burning post-control technology, is wherein not met by the discharge standard of coke oven discharge nitrogen oxides of exhaust gas based on control technology in the burning of waste gas circulation and zone heating etc.;And to adopt catalyst decomposition technique that nitrogen oxides of exhaust gas carries out the resolution process technology of denitration, its disadvantage is that process plant investment is huge, operating cost is high, limits the universal of this technology.
Summary of the invention
The invention provides a kind of coke dry quenching furnace dispersing gas processing method, coke dry quenching furnace dispersing gas is introduced coke oven combustion chamber and again participates in burning, it is possible not only to solve the emission problem of coke dry quenching furnace dispersing gas, can also effectively reduce the amount of nitrogen oxides in coke oven discharge waste gas, reduce the environmental pollution of coke-oven plant, it is achieved the green operation of coke-oven plant.
In order to achieve the above object, the present invention realizes by the following technical solutions:
A kind of coke dry quenching furnace dispersing gas processing method, derives supervisor and the adjustable air-introduced machine of rotating speed by connecting the dispersing gas of coke dry quenching furnace exhaust stack, coke dry quenching furnace dispersing gas is sent into coke oven heating system;Described coke oven heating system is poor gas heating system or rich gas heating system;The coke dry quenching furnace dispersing gas flow introducing coke oven heating system is adjusted by the dispersing gas flow control valve on dispersing gas derivation supervisor.
When described coke oven heating system is poor gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber by poor gas supervisor, coke oven shutter, bell and spigot and bottom flue.
When described coke oven heating system is rich gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber through coke oven shutter, bell and spigot and bottom flue.
When described coke oven heating system is poor gas heating system, the dispersing gas before poor gas supervisor is derived and is set dispersing gas flow control valve on supervisor, and the connection pipeline between poor gas supervisor and coke oven shutter sets flow-through orifice;Coke dry quenching furnace dispersing gas is derived supervisor by dispersing gas flow control valve from dispersing gas and is incorporated into poor gas supervisor, enter in the coke oven shutter with air door after being regulated by flow-through orifice, the poor gas and the air that are mixed into coke dry quenching furnace dispersing gas enter in bottom flue respectively through bell and spigot, finally import coke oven combustion chamber and burn.
When described coke oven heating system is rich gas heating system, the dispersing gas before coke oven shutter is derived and is set dispersing gas flow control valve on supervisor;Coke oven combustion chamber connects rich gas supervisor additionally by lower jet pipe, and rich gas supervisor sets preheater, rich gas flow control valve and cock;Coke dry quenching furnace dispersing gas is derived supervisor either directly through dispersing gas flow control valve from dispersing gas and is incorporated into the coke oven shutter with air door, is mixed into the air after coke dry quenching furnace dispersing gas and dilution and enters in bottom flue through bell and spigot, finally enters coke oven combustion chamber;After rich gas flow control valve and cock regulate, entered the air mixed combustion after coke oven combustion chamber and dilution respectively by lower jet pipe after rich gas preheated device preheating in rich gas supervisor.
Compared with prior art, the invention has the beneficial effects as follows:
1) realize recycling of dry coke quenching dispersing gas, solve coke-oven plant's coke dry quenching furnace dispersing gas and directly discharge the energy waste and problem of environmental pollution that bring;
2) relevant device small investment, does not additionally increase construction land, and operating cost is low;
3) can effectively reduce the concentration of coke oven discharge nitrogen oxides of exhaust gas, alleviate the environmental protection pressure of coke-oven plant, it is achieved the Green Operation of coke-oven plant.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of coke dry quenching furnace dispersing gas processing method of the present invention.
Fig. 2 is the structural representation that coke dry quenching furnace dispersing gas of the present invention introduces poor gas heating system.
Fig. 3 is the structural representation that coke dry quenching furnace dispersing gas of the present invention introduces rich gas heating system.
In figure: 1. coke dry quenching furnace dispersing gas pipeline 2. air-introduced machine 3. dispersing gas derivation supervisor 4. dispersing gas flow control valve 5. poor gas are responsible for 6. air door 7. flow-through orifice 8. coke oven shutter 9. bell and spigot 10. bottom flue 11. coke oven combustion chamber 12. rich gas and are responsible for 13. 16. times jet pipe 17. coke oven heating systems of preheater 14. rich gas flow control valve 15. cock
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
As it is shown in figure 1, a kind of coke dry quenching furnace dispersing gas processing method of the present invention, derive supervisor 3 and the adjustable air-introduced machine 2 of rotating speed by connecting the dispersing gas of coke dry quenching furnace exhaust stack 1, coke dry quenching furnace dispersing gas is sent into coke oven heating system 17;Described coke oven heating system 17 is poor gas heating system or rich gas heating system;The coke dry quenching furnace dispersing gas flow introducing coke oven heating system 17 is adjusted by the dispersing gas flow control valve 4 on dispersing gas derivation supervisor 3.
When described coke oven heating system 17 is poor gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber 11 by poor gas supervisor 5, coke oven shutter 8, bell and spigot 9 and bottom flue 10.
When described coke oven heating system 17 is rich gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber 11 through coke oven shutter 8, bell and spigot 9 and bottom flue 10.
As in figure 2 it is shown, when described coke oven heating system 17 is poor gas heating system, the dispersing gas before poor gas supervisor 5 is derived and set dispersing gas flow control valve 4 on supervisor 3, the connection pipeline between poor gas supervisor 5 and coke oven shutter 8 sets flow-through orifice 7;Coke dry quenching furnace dispersing gas is derived supervisor 3 by dispersing gas flow control valve 4 from dispersing gas and is incorporated into poor gas supervisor 5, enter in the coke oven shutter 8 with air door 6 after being regulated by flow-through orifice 7, the poor gas and the air that are mixed into coke dry quenching furnace dispersing gas enter in bottom flue 10 respectively through bell and spigot 9, finally import coke oven combustion chamber 11 and burn.
As it is shown on figure 3, when described coke oven heating system 17 is rich gas heating system, the dispersing gas before coke oven shutter 8 is derived and is set dispersing gas flow control valve 4 on supervisor 3;Coke oven combustion chamber 11 connects rich gas supervisor 12 additionally by lower jet pipe 16, and rich gas supervisor 12 sets preheater 13, rich gas flow control valve 14 and cock 15;Coke dry quenching furnace dispersing gas is derived supervisor 3 either directly through dispersing gas flow control valve 4 from dispersing gas and is incorporated into the coke oven shutter 8 with air door 6, it is mixed into the air after coke dry quenching furnace dispersing gas and dilution to enter in bottom flue 10 through bell and spigot 9, finally enters coke oven combustion chamber 11;After rich gas flow control valve 14 and cock 15 regulate, entered the air mixed combustion after coke oven combustion chamber 11 and dilution respectively by lower jet pipe 16 after rich gas preheated device 13 preheating in rich gas supervisor 12.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a coke dry quenching furnace dispersing gas processing method, it is characterised in that derive supervisor and the adjustable air-introduced machine of rotating speed by connecting the dispersing gas of coke dry quenching furnace exhaust stack, coke dry quenching furnace dispersing gas is sent into coke oven heating system;Described coke oven heating system is poor gas heating system or rich gas heating system;The coke dry quenching furnace dispersing gas flow introducing coke oven heating system is adjusted by the dispersing gas flow control valve on dispersing gas derivation supervisor.
2. a kind of coke dry quenching furnace dispersing gas processing method according to claim 1, it is characterized in that, when described coke oven heating system is poor gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber by poor gas supervisor, coke oven shutter, bell and spigot and bottom flue.
3. a kind of coke dry quenching furnace dispersing gas processing method according to claim 1, it is characterised in that when described coke oven heating system is rich gas heating system, coke dry quenching furnace dispersing gas introduces coke oven combustion chamber through coke oven shutter, bell and spigot and bottom flue.
4. a kind of coke dry quenching furnace dispersing gas processing method according to claim 1, it is characterized in that, when described coke oven heating system is poor gas heating system, dispersing gas before poor gas supervisor is derived and is set dispersing gas flow control valve on supervisor, and the connection pipeline between poor gas supervisor and coke oven shutter sets flow-through orifice;Coke dry quenching furnace dispersing gas is derived supervisor by dispersing gas flow control valve from dispersing gas and is incorporated into poor gas supervisor, enter in the coke oven shutter with air door after being regulated by flow-through orifice, the poor gas and the air that are mixed into coke dry quenching furnace dispersing gas enter in bottom flue respectively through bell and spigot, finally import coke oven combustion chamber and burn.
5. a kind of coke dry quenching furnace dispersing gas processing method according to claim 1, it is characterised in that when described coke oven heating system is rich gas heating system, the dispersing gas before coke oven shutter is derived and set dispersing gas flow control valve on supervisor;Coke oven combustion chamber connects rich gas supervisor additionally by lower jet pipe, and rich gas supervisor sets preheater, rich gas flow control valve and cock;Coke dry quenching furnace dispersing gas is derived supervisor either directly through dispersing gas flow control valve from dispersing gas and is incorporated into the coke oven shutter with air door, is mixed into the air after coke dry quenching furnace dispersing gas and dilution and enters in bottom flue through bell and spigot, finally enters coke oven combustion chamber;After rich gas flow control valve and cock regulate, entered the air mixed combustion after coke oven combustion chamber and dilution respectively by lower jet pipe after rich gas preheated device preheating in rich gas supervisor.
Priority Applications (1)
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CN201610308864.9A CN105802639A (en) | 2016-05-10 | 2016-05-10 | Coke dry quenching furnace diffused gas treatment method |
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CN201610308864.9A CN105802639A (en) | 2016-05-10 | 2016-05-10 | Coke dry quenching furnace diffused gas treatment method |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108379996A (en) * | 2018-04-03 | 2018-08-10 | 金能科技股份有限公司 | Reduce the device and method of dry coke quenching environmental grounds dust pelletizing system chimney sulfur dioxide |
CN111396902A (en) * | 2020-03-31 | 2020-07-10 | 中冶焦耐(大连)工程技术有限公司 | Process for treating wet desulphurization regeneration tail gas by using tube furnace |
CN111944543A (en) * | 2020-09-17 | 2020-11-17 | 江苏龙冶节能科技有限公司 | Riser raw gas disturbance method and device based on dry quenching cycle gas |
CN112940757A (en) * | 2021-03-17 | 2021-06-11 | 宝武集团鄂城钢铁有限公司 | Treatment method for diluting coke oven gas by utilizing diffused gas in pre-storage section of dry quenching furnace |
CN113122290A (en) * | 2019-12-30 | 2021-07-16 | 宝山钢铁股份有限公司 | Method for treating commonly used diffused gas of dry quenching furnace |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN108379996A (en) * | 2018-04-03 | 2018-08-10 | 金能科技股份有限公司 | Reduce the device and method of dry coke quenching environmental grounds dust pelletizing system chimney sulfur dioxide |
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CN111396902A (en) * | 2020-03-31 | 2020-07-10 | 中冶焦耐(大连)工程技术有限公司 | Process for treating wet desulphurization regeneration tail gas by using tube furnace |
CN111944543A (en) * | 2020-09-17 | 2020-11-17 | 江苏龙冶节能科技有限公司 | Riser raw gas disturbance method and device based on dry quenching cycle gas |
CN112940757A (en) * | 2021-03-17 | 2021-06-11 | 宝武集团鄂城钢铁有限公司 | Treatment method for diluting coke oven gas by utilizing diffused gas in pre-storage section of dry quenching furnace |
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Effective date of registration: 20180801 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Applicant after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Applicant before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |
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Application publication date: 20160727 |