CN107941031A - A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process - Google Patents
A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process Download PDFInfo
- Publication number
- CN107941031A CN107941031A CN201711395071.6A CN201711395071A CN107941031A CN 107941031 A CN107941031 A CN 107941031A CN 201711395071 A CN201711395071 A CN 201711395071A CN 107941031 A CN107941031 A CN 107941031A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- temperature flue
- heat recovery
- recovery coke
- coke oven
- 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.)
- Granted
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000003546 flue gas Substances 0.000 title claims abstract description 89
- 239000000571 coke Substances 0.000 title claims abstract description 46
- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002918 waste heat Substances 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims abstract description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coke Industry (AREA)
Abstract
The present invention relates to a kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process,One waste heat boiler of platform location arrangements between among per two adjacent heat recovery coke ovens,The high-temperature flue gas gas collecting tube of every heat recovery coke oven is connected with exhaust-heat boiler inlet,The high-temperature flue gas that two adjacent heat recovery coke ovens produce is directly entered in waste heat boiler without gas-guide tube,Through residual heat boiler for exchanging heat,Low-temperature flue gas pipeline is equipped with the top of waste heat boiler,Low-temperature flue gas pipeline is sequentially connected wind turbine,Desulfurization and dust removing units,Outer row after the processing of low-temperature flue gas desulfurization and dedusting,High-temperature flue gas gas collecting tube cross over pipe is equipped between the heat recovery coke oven of parallel arrangement,Low-temperature flue gas pipeline communicating pipe is equipped between the waste heat boiler of parallel arrangement,The high-temperature flue gas of two heat recovery coke ovens of parallel arrangement can import mutually,Enter in corresponding boiler outer row after being jointly processed by the same time.The present invention reduces system radiating, reduces system leak and causes high-temperature flue-gas to reduce, heat utilization rate is high.
Description
Technical field
The present invention relates to heat recovery coke oven compact technique, and it is burnt to be mainly used in newly-built, renovating and enlarging various recuperations of heat
The high-temperature flue gas system arrangement of stove.
Background technology
Heat recovery coke oven is during production and application, and the high-temperature flue-gas of generation is at 850 DEG C~1200 DEG C, via high temperature
Flue gas pipeline reaches waste heat boiler and follow-up workshop section or is diffused via accident chimney in air.During normal production, whole system
Negative-pressure operation, system suction are realized by the wind turbine after boiler, high-temperature flue gas and boiler heat exchange, and the thermal energy in flue gas is by pot
Stove absorbs, and produces steam, can be used to generate electricity.Flue gas after heat exchange is directed to desulfurization unit, is handled, and is discharged after up to standard.
The product of heat recovery coke oven is exactly mainly coke and electric energy.
Traditional heat recovery coke oven, high-temperature flue gas are to export by fume pipe and (be lined with refractory material inside fume pipe) to arrive stove
Outer waste heat boiler, the length of flue will generally have rice up to a hundred, and heat dissipation can occur during export for flue gas, and (heat dissipation wastes
The energy up to 5~10%, flue-gas temperature reduces by 100~200 DEG C), in addition system is longer, and leakage point is also more, due to being negative
Press operation, air are inhaled into system, cause flue-gas temperature to decline, while the refractory material of flue liner is using one section
After time, also occur and come off, it is necessary to repair, need blowing out to repair when serious, in addition all needed every year for security consideration, boiler
Stop stove annual overhaul (general annual maintenance 20~25 days) eager to excel in whatever one does, during boiler shutdown annual overhaul, the high-temperature flue gas of heat recovery coke oven
It can only be diffused and (can not be handled since temperature is very high by desulfurization unit) by accident chimney, cause environmental pollution.The above situation
Heat-energy losses and waste will be caused, and investment cost is also higher, production maintenance heavy workload.
For the These characteristics of heat recovery coke oven high-temperature flue gas system, the present invention is improved using a kind of new arrangement
The heat utilization rate of heat recovery coke oven high-temperature flue gas system.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of heat recovery coke oven high-temperature flue gas system compact type craft cloth
Method is put, shortens pipe-line system, reduces heat dissipation and leakage, improves utilization efficiency of heat energy, when solving boiler maintenance, high-temperature flue gas
The problem of pollution environment, is diffused in no processing.
To achieve the above object, the present invention is realized using following technical scheme：
A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process, often in two adjacent heat recovery coke ovens
Between between one waste heat boiler of platform location arrangements, the high-temperature flue gas gas collecting tube of every heat recovery coke oven connects with exhaust-heat boiler inlet
Connect, the high-temperature flue gas that two adjacent heat recovery coke ovens produce is directly entered in waste heat boiler without gas-guide tube, through waste heat boiler
Heat exchange, waste heat boiler top are equipped with low-temperature flue gas pipeline, and low-temperature flue gas pipeline is sequentially connected wind turbine, desulfurization and dust removing units, low
It is outer after warm flue gas desulfurization and dedusting processing to arrange, high-temperature flue gas gas collecting tube cross over pipe is equipped between the heat recovery coke oven of parallel arrangement, is put down
Low-temperature flue gas pipeline communicating pipe, the high-temperature flue gas of two heat recovery coke ovens of parallel arrangement are equipped between the waste heat boiler of row arrangement
It can mutually import, while enter in corresponding boiler and be jointly processed by rear outer row.
At the exhaust-heat boiler inlet, on high-temperature flue gas gas collecting tube, be equipped with and cut on high-temperature flue gas gas collecting tube cross over pipe
Disconnected valve.
The stop valve is equipped with automatic or manual operator scheme.
Compared with prior art, the beneficial effects of the invention are as follows：
1. layout of boiler is connected directly between two coke ovens with gas collecting tube, shortens high-temperature flue gas pipeline road, produced
The high-temperature flue gas produced in journey enters directly into boiler, reduces system radiating, reduces system leak and causes high-temperature flue-gas to drop
Low, heat utilization rate is high.
2. eliminating the accident chimney of original system, flue gas passes through boiler heat exchange all the time, and the low-temperature flue gas after heat exchange passes through
Desulfurization unit, handles rear outer row up to standard.Fundamentally solve the problems, such as that the untreated directly discharge of flue gas dissipates to pollute.
3. by unicom pipeline and switch valve are set between every two boilers, it can be achieved that when a boiler occur accident or
When person carries out annual overhaul, high-temperature flue gas is imported into an other boiler, is directly diffused to avoid there is high-temperature flue gas, causes thermal energy
Waste and pollution to environment.Switch valve, that is, operable automatically, is also manually operable.
4. arranged suitable for newly-built, renovating and enlarging various heat recovery coke ovens.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
In figure：Heat recovery coke oven 1, high-temperature flue gas gas collecting tube 2, exhanst gas outlet 3, stop valve 4, waste heat boiler 5, low-temperature flue gas
Pipeline 6, wind turbine 7, desulfurization and dust removing units 8, high-temperature flue gas gas collecting tube cross over pipe 9, low-temperature flue gas pipeline communicating pipe 10.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
Such as Fig. 1, a kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process, including it is heat recovery coke oven 1, remaining
Heat boiler 5, wind turbine 7, desulfurization and dust removing units 8.
One waste heat boiler 5 of platform location arrangements between among per adjacent two heat recovery coke ovens 1, every heat recovery coke oven
High-temperature flue gas gas collecting tube 2 be connected with exhaust-heat boiler inlet.Stop valve 4 is equipped with exhaust-heat boiler inlet.Produced in production process
Raw high-temperature flue gas enters directly into waste heat boiler, shortens the path that flue gas enters waste heat boiler, reduces system radiating, reduces system
System leakage causes high-temperature flue-gas to reduce.
The top of waste heat boiler 5 is equipped with low-temperature flue gas pipeline 6, and low-temperature flue gas pipeline 6 is sequentially connected wind turbine 7, desulfurization and dedusting
Unit 8, desulfurization and dust removing units 8 set exhanst gas outlet 3.
High-temperature flue gas gas collecting tube cross over pipe 9, the waste heat boiler of parallel arrangement are equipped between the heat recovery coke oven 1 of parallel arrangement
Low-temperature flue gas pipeline communicating pipe 10 is equipped between 5.High-temperature flue gas gas collecting tube cross over pipe 9 is equipped with stop valve 4.When a waste heat pot
When stove accident occurs or carries out annual overhaul, high-temperature flue gas is imported into an other waste heat boiler 5, to avoid there is high-temperature flue gas
Directly diffuse, cause the waste of thermal energy and the pollution to environment.Stop valve can automatic or manual operation.Eliminate original system
Accident chimney, flue gas pass through residual heat boiler for exchanging heat all the time, and the low-temperature flue gas after heat exchange is up to standard by desulfurization and depositing dust unit, processing
Outer row afterwards.Fundamentally solve the problems, such as that the untreated directly discharge of flue gas dissipates to pollute.
Embodiment
A kind of heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process, including 4 heat recovery coke ovens more than 1,2
Heat boiler 5,7, desulfurization of a Fans and dust removing units 8.2 heat recovery coke ovens 1 are a row, and two row are arranged in parallel.
One waste heat boiler 5 of platform location arrangements between among adjacent two heat recovery coke ovens 1, every heat recovery coke oven
High-temperature flue gas gas collecting tube 2 is collected enters waste heat boiler 5 after high-temperature flue gas collects by waste heat boiler lower entrances.Waste heat boiler 5 enters
Stop valve 4 is equipped with mouthful.
The top of waste heat boiler 5 is equipped with low-temperature flue gas pipeline 6, and low-temperature flue gas pipeline 6 is sequentially connected wind turbine 7, desulfurization and dedusting
Unit 8, desulfurization and dust removing units 8 set exhanst gas outlet 3.
High-temperature flue gas gas collecting tube cross over pipe 9, high-temperature flue gas gas collecting tube unicom are equipped between the heat recovery coke oven 1 of parallel arrangement
Pipe 9 is equipped with stop valve 4.Low-temperature flue gas pipeline communicating pipe 10 is equipped between the waste heat boiler 5 of parallel arrangement.
When a waste heat boiler 5 accident occurs or carries out annual overhaul, the stop valve 4 of this exhaust-heat boiler inlet is closed
Close, the stop valve 4 of the high-temperature flue gas gas collecting tube cross over pipe 9 towards parallel waste heat coke oven is opened, high-temperature flue gas is imported into
An other waste heat boiler 5, is directly diffused to avoid there is high-temperature flue gas, causes the waste of thermal energy and the pollution to environment.
Described above is only the basic principle of the present invention, and not the present invention is imposed any restrictions, every right according to the present invention
It carries out equivalent variations and modification, within the category of the art of this patent protection scheme.
Claims (3)
- A kind of 1. heat recovery coke oven high-temperature flue gas system compact type method for arranging technological process, often among two adjacent heat recovery coke ovens Between one waste heat boiler of platform location arrangements, the high-temperature flue gas gas collecting tube of every heat recovery coke oven connects with exhaust-heat boiler inlet Connect, the high-temperature flue gas that two adjacent heat recovery coke ovens produce is directly entered in waste heat boiler without gas-guide tube, through waste heat boiler Heat exchange, waste heat boiler top are equipped with low-temperature flue gas pipeline, and low-temperature flue gas pipeline is sequentially connected wind turbine, desulfurization and dust removing units, low It is outer after warm flue gas desulfurization and dedusting processing to arrange, high-temperature flue gas gas collecting tube cross over pipe is equipped between the heat recovery coke oven of parallel arrangement, is put down Low-temperature flue gas pipeline communicating pipe, the high-temperature flue gas of two heat recovery coke ovens of parallel arrangement are equipped between the waste heat boiler of row arrangement It can mutually import, while enter in corresponding boiler and be jointly processed by rear outer row.
- 2. a kind of heat recovery coke oven high-temperature flue gas system compact type technology arrangement structure according to claim 1, its feature It is, cut-out is equipped with the exhaust-heat boiler inlet, on high-temperature flue gas gas collecting tube, on high-temperature flue gas gas collecting tube cross over pipe Valve.
- 3. a kind of heat recovery coke oven high-temperature flue gas system compact type technology arrangement structure according to claim 1, its feature It is, the stop valve is equipped with automatic or manual operator scheme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395071.6A CN107941031B (en) | 2017-12-21 | 2017-12-21 | Compact process arrangement method for high-temperature flue gas system of heat recovery coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395071.6A CN107941031B (en) | 2017-12-21 | 2017-12-21 | Compact process arrangement method for high-temperature flue gas system of heat recovery coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107941031A true CN107941031A (en) | 2018-04-20 |
| CN107941031B CN107941031B (en) | 2024-03-19 |
Family
ID=61941084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711395071.6A Active CN107941031B (en) | 2017-12-21 | 2017-12-21 | Compact process arrangement method for high-temperature flue gas system of heat recovery coke oven |
Country Status (1)
| Country | Link |
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| CN (1) | CN107941031B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377526A (en) * | 2022-01-25 | 2022-04-22 | 福建三钢闽光股份有限公司 | Control method of header system coke oven flue gas recovery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605261Y (en) * | 2003-02-14 | 2004-03-03 | 李天瑞 | Heat-accumulated clean type casting coke oven |
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| CN106883867A (en) * | 2015-12-15 | 2017-06-23 | 福建三钢闽光股份有限公司 | A kind of stopping production can overhaul the coal oven dithio-gas cement sensible heat recovery system of drum |
-
2017
- 2017-12-21 CN CN201711395071.6A patent/CN107941031B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605261Y (en) * | 2003-02-14 | 2004-03-03 | 李天瑞 | Heat-accumulated clean type casting coke oven |
| CN101624525A (en) * | 2008-07-11 | 2010-01-13 | 中冶焦耐工程技术有限公司 | Cold-side adjustment method for temperature and pressure of high temperature flue gas system of heat recovery coke oven |
| CN203321604U (en) * | 2013-05-24 | 2013-12-04 | 临沂恒昌焦化股份有限公司 | Coke oven smoke waste heat power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114377526A (en) * | 2022-01-25 | 2022-04-22 | 福建三钢闽光股份有限公司 | Control method of header system coke oven flue gas recovery system |
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| Publication number | Publication date |
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| CN107941031B (en) | 2024-03-19 |
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