CN114777503B - Flue gas technology based on heat recovery coke oven - Google Patents
Flue gas technology based on heat recovery coke oven Download PDFInfo
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- CN114777503B CN114777503B CN202210334497.5A CN202210334497A CN114777503B CN 114777503 B CN114777503 B CN 114777503B CN 202210334497 A CN202210334497 A CN 202210334497A CN 114777503 B CN114777503 B CN 114777503B
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- flue gas
- coke oven
- temperature flue
- waste heat
- temperature
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- 239000003546 flue gas Substances 0.000 title claims abstract description 136
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 239000000571 coke Substances 0.000 title claims abstract description 129
- 238000011084 recovery Methods 0.000 title claims abstract description 54
- 238000005516 engineering process Methods 0.000 title description 2
- 239000002918 waste heat Substances 0.000 claims abstract description 76
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000009792 diffusion process Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000004939 coking Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000746 purification Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
-
- 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
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
-
- 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
-
- 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
- F27D19/00—Arrangements of controlling devices
-
- 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
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0031—Regulation through control of the flow of the exhaust 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention relates to the technical field of waste heat utilization of a heat recovery coke oven in coking production, in particular to a flue gas process based on the heat recovery coke oven. The high-temperature flue gas generated by the heat recovery coke oven firstly enters a furnace top gas collecting pipe at the furnace top, then enters a coke oven waste heat boiler for heat exchange, and the low-temperature flue gas after heat exchange enters a chimney for diffusing; when any coke oven waste heat boiler is in accident or overhauled, the corresponding electric cut-off valve of the boiler smoke inlet and the electric cut-off valve of the boiler smoke outlet are cut off, the electric cut-off valve of the high-temperature smoke bypass and the electric cut-off valve of the chimney smoke inlet on the high-temperature smoke bypass are opened, and the high-temperature smoke generated by the heat recovery coke oven of the corresponding coke oven waste heat boiler is diffused through an accident diffusion chimney. The accident coke oven waste heat boiler can be cut off, the residual coke oven waste heat boiler is utilized to recover the high-temperature flue gas waste heat, so that the accident is localized, the integral operation of the system is not influenced, and the high-temperature flue gas waste heat is effectively recovered; the investment occupied area is reduced, the arrangement scheme is flexible, and the overhaul is convenient.
Description
Technical Field
The invention relates to the technical field of waste heat utilization of a heat recovery coke oven in coking production, in particular to a flue gas process based on the heat recovery coke oven.
Background
The heat recovery coke oven is a coke production device for micro-negative pressure operation of a coke oven carbonization chamber, mechanical tamping, coal loading, coke discharging and recycling waste heat of coking combustion waste gas. During the coking process of the heat recovery coke oven, coking coal is subjected to high-temperature carbonization to generate coke, chemical products, coke oven gas and some harmful substances, the chemical products, the coke oven gas and some harmful substances are reasonably and fully combusted in the heat recovery coke oven, a large amount of 850-1200 ℃ high-temperature smoke is generated, waste heat resources generated in the production process of the heat recovery coke oven are efficiently recovered through a coke oven waste heat boiler and reasonably utilized, and the generated high-temperature high-pressure superheated steam drives a subsequent turbine generator unit to generate electricity or supply heat, so that the method has become one of main ways for improving the efficiency of the heat recovery coke oven, not only reduces the emission of polluted waste gas, but also saves energy, brings considerable economic benefit and social benefit for coking enterprises, and is also the main development direction and potential of energy conservation of the heat recovery coke oven.
The prior part of technical schemes have the following problems: 1. a group of coke ovens is provided with an accident diffusion chimney of a coke oven waste heat boiler, and the accident diffusion chimney is too many; 2. the coke oven waste heat boiler is arranged between two coke ovens, and the boiler is inconvenient to overhaul.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a flue gas process based on a heat recovery coke oven. The accident coke oven waste heat boiler can be cut off, the residual coke oven waste heat boiler is utilized to recover the high-temperature flue gas waste heat, so that the accident is localized, the integral operation of the system is not influenced, and the high-temperature flue gas waste heat is effectively recovered; the investment occupied area is reduced, the arrangement scheme is flexible, and the overhaul is convenient.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a flue gas system based on a heat recovery coke oven comprises the heat recovery coke oven, a coke oven waste heat boiler, a flue gas purification device, a chimney and an accident diffusion chimney; the number of the heat recovery coke ovens and the coke oven waste heat boilers is the same as that of the coke oven waste heat boilers, and one heat recovery coke oven corresponds to one coke oven waste heat boiler; the furnace top gas collecting pipe of the heat recovery coke furnace is connected with a coke furnace waste heat boiler through a high-temperature flue gas pipe, and the high-temperature flue gas pipe is provided with a high-temperature flue gas bypass and is connected with an accident diffusion chimney; the coke oven waste heat boiler is connected with the smoke purifying device through a first low-temperature smoke pipe, and the smoke purifying device is connected with a chimney pipeline.
The Gao Wenyan air pipe is provided with an electric cut-off valve for a boiler flue gas inlet, a chimney flue gas inlet electric cut-off valve and a high-temperature flue gas bypass electric cut-off valve are arranged on the high-temperature flue gas bypass, and the first low-temperature flue gas pipe is provided with an electric cut-off valve for a boiler flue gas outlet.
The smoke purifying device is connected with the induced draft fan through a second low-temperature smoke pipe, and the induced draft fan is connected with the chimney through a third low-temperature smoke pipe.
The number of the coke oven waste heat boilers is multiple, and the plurality of coke oven waste heat boilers share one accident diffusion chimney.
A flue gas process based on a heat recovery coke oven specifically comprises the following steps:
1) The high-temperature flue gas generated by the heat recovery coke oven firstly enters a furnace top gas collecting pipe arranged at the furnace top, the temperature of the high-temperature flue gas is 1050-1150 ℃, then enters a coke oven waste heat boiler through a high-temperature flue gas pipeline communicated with the furnace top gas collecting pipe for heat exchange, and the low-temperature flue gas after heat exchange enters a chimney for diffusing after passing through a first low-temperature flue gas pipe, a flue gas purifying device, a second low-temperature flue gas pipe, an induced draft fan and a third low-temperature flue gas pipe in sequence; the temperature of the low-temperature flue gas is 165-180 ℃;
2) Under normal working conditions, the coke oven waste heat boiler operates with rated parameters, the high-temperature flue gas bypass electric shut-off valve and the chimney flue gas inlet electric shut-off valve are turned off, when any one coke oven waste heat boiler is in accident or overhauled, the corresponding high-temperature flue gas inlet electric shut-off valve on the high-temperature flue gas pipe and the corresponding high-temperature flue gas outlet electric shut-off valve on the first low-temperature flue gas pipe are turned off, the corresponding high-temperature flue gas bypass electric shut-off valve and the corresponding chimney flue gas inlet electric shut-off valve on the high-temperature flue gas bypass are opened, and high-temperature flue gas generated by the heat recovery coke oven of the corresponding coke oven waste heat boiler is diffused through an accident diffusion chimney.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention can cut off the coke oven waste heat boiler for accident overhaul, reasonably configure the equipment capacity of the coke oven waste heat boiler, flexibly operate the operation of the matched coke oven waste heat boiler, configure a plurality of coke oven waste heat boilers to prevent the high-temperature smoke from being diffused, configure 2 coke oven waste heat boilers to prevent the high-temperature smoke from being diffused, effectively recover the waste heat, protect the environment and create good economic and social benefits.
2) The invention can lead a plurality of coke oven waste heat boilers to run in parallel, uniformly consider the configuration of subsequent waste heat utilization equipment, save the equipment occupation, reduce the equipment investment, simplify the production operation and lead the production operation to be flexible.
3) According to the invention, the flue gas generated by each heat recovery coke oven can be sent to the accident emission chimney for emission through the high-temperature flue gas bypass and the switch of the high-temperature flue gas bypass electric cut-off valve, one accident emission chimney is not arranged in a group of coke ovens, the arrangement of the accident emission chimney is reduced, the investment is saved, and the occupied area is saved.
4) The flue gas system is suitable for various newly-built, reconstructed and expanded heat recovery coke oven flue gas systems.
Drawings
FIG. 1 is a schematic structural diagram and a process flow chart of the invention.
In the figure: 1-heat recovery coke oven 2-coke oven waste heat boiler 3-flue gas purification device 4-induced draft fan 5-chimney 6-accident diffusion chimney 7-furnace top gas collecting tube 8-high temperature flue gas tube 9-first low temperature flue gas tube 10-second low temperature flue gas tube 11-third low temperature flue gas tube 12-high temperature flue gas bypass 13-boiler flue gas inlet electric cut-off valve 14-chimney flue gas inlet electric cut-off valve 15-high temperature flue gas bypass electric cut-off valve 16-boiler flue gas outlet electric cut-off valve
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
examples:
as shown in fig. 1, a flue gas system based on a heat recovery coke oven comprises 2 heat recovery coke ovens 1, 2 coke oven waste heat boilers 2, 1 flue gas purifying device 3, a chimney 5, an accident diffusing chimney 6, a high-temperature flue gas pipe 8, a first low-temperature flue gas pipe 9, a second low-temperature flue gas pipe 10, a third low-temperature flue gas pipe 11, a high-temperature flue gas pipe 12, a boiler flue gas inlet electric shut-off valve 13, a chimney flue gas inlet electric shut-off valve 14, a high-temperature flue gas bypass electric shut-off valve 15 and a boiler flue gas outlet electric shut-off valve 16. The 2 heat recovery coke ovens 1 are connected in parallel through pipelines, the number of the heat recovery coke ovens 1 is the same as that of the coke oven waste heat boilers 2, and one heat recovery coke oven 1 corresponds to one coke oven waste heat boiler 2.
The furnace top gas collecting pipe 7 of the heat recovery coke furnace 1 is connected with the coke furnace waste heat boiler 2 through a high-temperature gas pipe 8, and the high-temperature gas pipe 8 is provided with a high-temperature gas bypass 12 which is connected with the accident diffusion chimney 6; the coke oven exhaust-heat boiler 2 is connected with the flue gas purification device 3 through a first low-temperature flue gas pipe 9, the flue gas purification device 3 is connected with the induced draft fan 4 through a second low-temperature flue gas pipe 10, and the induced draft fan 4 is connected with the chimney 5 through a third low-temperature flue gas pipe 11.
The high-temperature flue gas pipe 8 is provided with a boiler flue gas inlet electric cut-off valve 13, the high-temperature flue gas bypass 12 is provided with a chimney flue gas inlet electric cut-off valve 14 and a high-temperature flue gas bypass electric cut-off valve 15, and the first low-temperature flue gas pipe 9 is provided with a boiler flue gas outlet electric cut-off valve 16.
The coke oven waste heat boiler 2 is a high-temperature high-pressure boiler, the rated steam temperature is 540 ℃, and the rated steam pressure is 9.81MPa. The flue gas purifying device 3 is a dust removal, desulfurization and denitrification integrated device.
In the embodiment, 2 coke oven waste heat boilers 2 are configured for 2 groups of heat recovery coke ovens 1, and the 2 coke oven waste heat boilers 2 share an accident diffusion chimney 6 and a chimney 5.
A flue gas process based on a heat recovery coke oven specifically comprises the following steps:
1) The high-temperature flue gas generated by the heat recovery coke oven 1 enters a furnace top gas collecting pipe 7 arranged at the furnace top, the flue gas temperature is 1050-1150 ℃, then enters a coke oven waste heat boiler 2 through a high-temperature flue gas pipeline 8 communicated with the furnace top gas collecting pipe 7 for heat exchange, and the low-temperature flue gas with the temperature of 165-180 ℃ after heat exchange sequentially passes through a first low-temperature flue gas pipe 9, a flue gas purifying device 3, a second low-temperature flue gas pipe 10, a draught fan 4 and a third low-temperature flue gas pipe 11 and then enters a chimney 5 for emission, wherein the flue gas temperature is approximately equal to 80 ℃.
2) Every two heat recovery coke ovens are in a group, one group of heat recovery coke ovens 1 corresponds to one coke oven waste heat boiler 2, the coke oven waste heat boiler 2 operates with rated parameters under normal working conditions, the high-temperature flue gas bypass electric cut-off valve 15 and the chimney flue gas inlet electric cut-off valve 14 are cut off, when any one coke oven waste heat boiler 2 is in accident or overhauled, the boiler flue gas inlet electric cut-off valve 13 on the corresponding high-temperature flue gas pipe 8 and the boiler flue gas outlet electric cut-off valve 16 on the first low-temperature flue gas pipe 9 are cut off, the high-temperature flue gas bypass electric cut-off valve 15 and the chimney flue gas inlet electric cut-off valve 14 on the corresponding high-temperature flue gas bypass 12 are opened, and the high-temperature flue gas generated by the heat recovery coke ovens 1 corresponding to the coke oven waste heat boiler 2 is diffused through the accident diffusing chimney 6.
The invention is not limited to 2 groups of heat recovery coke ovens 1 and 2 coke oven waste heat boilers 2 are configured, when a plurality of groups of heat recovery coke ovens 1 are configured with a plurality of coke oven waste heat boilers 2, any one coke oven waste heat boiler 2 is in accident or maintenance, a boiler smoke inlet electric cut-off valve 13 on a corresponding high-temperature smoke pipe 8 and a boiler smoke outlet electric cut-off valve 16 on a first low-temperature smoke pipe 9 are cut off, a high-temperature smoke bypass electric cut-off valve 15 on a corresponding high-temperature smoke bypass 12 is opened, a chimney smoke inlet electric cut-off valve 14 is closed, high-temperature smoke generated by the corresponding heat recovery coke ovens 1 of the coke oven waste heat boiler 2 in accident maintenance is distributed to the rest coke oven waste heat boilers 2 through the high-temperature smoke bypass 12, finally, the high-temperature smoke generated by the plurality of groups of heat recovery coke ovens 1 can be completely exchanged with the rest coke oven waste heat boilers 2, and the smoke is not required to be diffused through an accident diffusion chimney 6, and the operation of the matched coke oven waste heat boilers is flexibly operated.
According to the invention, the accident coke oven waste heat boiler can be cut off, the residual coke oven waste heat boiler is utilized to recover the high-temperature flue gas waste heat, so that the accident is localized, the integral operation of the system is not influenced, the high-temperature flue gas waste heat is effectively recovered, all the coke oven waste heat boilers 2 are uniformly provided with the accident diffusion chimney 6, the investment occupation is reduced, the coke oven waste heat boilers 2 are not limited to be arranged between two heat recovery coke ovens 1, the heat recovery coke ovens 1 are not limited to be arranged on two sides of a coke quenching car, and the coke oven waste heat boilers 2 can be arranged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. A flue gas system based on heat recovery coke oven, characterized in that: comprises a heat recovery coke oven, a coke oven waste heat boiler, a flue gas purifying device, a chimney and an accident diffusing chimney; the number of the heat recovery coke ovens and the coke oven waste heat boilers is the same as that of the coke oven waste heat boilers, and one heat recovery coke oven corresponds to one coke oven waste heat boiler; the furnace top gas collecting pipe of the heat recovery coke furnace is connected with a coke furnace waste heat boiler through a high-temperature flue gas pipe, and the high-temperature flue gas pipe is provided with a high-temperature flue gas bypass and is connected with an accident diffusion chimney; the coke oven waste heat boiler is connected with a smoke purifying device through a first low-temperature smoke pipe, and the smoke purifying device is connected with a chimney pipeline;
the Gao Wenyan air pipe is provided with a boiler flue gas inlet electric cut-off valve, the high-temperature flue gas bypass is provided with a chimney flue gas inlet electric cut-off valve and a high-temperature flue gas bypass electric cut-off valve, and the first low-temperature flue gas pipe is provided with a boiler flue gas outlet electric cut-off valve;
the smoke purifying device is connected with the induced draft fan through a second low-temperature smoke pipe, and the induced draft fan is connected with the chimney through a third low-temperature smoke pipe;
the plurality of coke oven waste heat boilers share one accident diffusing chimney.
2. A process based on a flue gas system based on a heat recovery coke oven according to claim 1, characterized in that it comprises in particular:
1) The high-temperature flue gas generated by the heat recovery coke oven firstly enters a furnace top gas collecting pipe arranged at the furnace top, then enters a coke oven waste heat boiler through a high-temperature flue gas pipeline communicated with the furnace top gas collecting pipe for heat exchange, and the low-temperature flue gas after heat exchange enters a chimney for diffusing after passing through a first low-temperature flue gas pipe, a flue gas purifying device, a second low-temperature flue gas pipe, a draught fan and a third low-temperature flue gas pipe in sequence;
2) Under normal working conditions, the coke oven waste heat boiler operates with rated parameters, the high-temperature flue gas bypass electric shut-off valve and the chimney flue gas inlet electric shut-off valve are turned off, when any one coke oven waste heat boiler is in accident or overhauled, the corresponding high-temperature flue gas inlet electric shut-off valve on the high-temperature flue gas pipe and the corresponding high-temperature flue gas outlet electric shut-off valve on the first low-temperature flue gas pipe are turned off, the corresponding high-temperature flue gas bypass electric shut-off valve and the corresponding chimney flue gas inlet electric shut-off valve on the high-temperature flue gas bypass are opened, and high-temperature flue gas generated by the heat recovery coke oven of the corresponding coke oven waste heat boiler is diffused through an accident diffusion chimney.
3. The process of a flue gas system based on a heat recovery coke oven according to claim 2, wherein 1) the high temperature flue gas temperature is 1050-1150 ℃.
4. The process of a flue gas system based on a heat recovery coke oven according to claim 2, wherein 1) the low temperature flue gas temperature is 165-180 ℃.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210334497.5A CN114777503B (en) | 2022-03-31 | 2022-03-31 | Flue gas technology based on heat recovery coke oven |
| PCT/CN2022/139821 WO2023185110A1 (en) | 2022-03-31 | 2022-12-18 | Flue gas process based on heat recovery coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210334497.5A CN114777503B (en) | 2022-03-31 | 2022-03-31 | Flue gas technology based on heat recovery coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114777503A CN114777503A (en) | 2022-07-22 |
| CN114777503B true CN114777503B (en) | 2024-03-19 |
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ID=82426874
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210334497.5A Active CN114777503B (en) | 2022-03-31 | 2022-03-31 | Flue gas technology based on heat recovery coke oven |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114777503B (en) |
| WO (1) | WO2023185110A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777503B (en) * | 2022-03-31 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Flue gas technology based on heat recovery coke oven |
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| CN217236493U (en) * | 2022-03-31 | 2022-08-19 | 中冶焦耐(大连)工程技术有限公司 | Flue gas system based on heat recovery coke oven |
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2022
- 2022-03-31 CN CN202210334497.5A patent/CN114777503B/en active Active
- 2022-12-18 WO PCT/CN2022/139821 patent/WO2023185110A1/en unknown
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|---|---|---|---|---|
| CN107014217A (en) * | 2017-05-18 | 2017-08-04 | 中冶华天南京工程技术有限公司 | Coke-oven plant's coke-stove gas is utilized and smoke processing system and its processing method |
| CN207741585U (en) * | 2017-12-21 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven high-temperature flue gas system compact type technology arrangement structure |
| CN108744918A (en) * | 2018-06-14 | 2018-11-06 | 鞍钢股份有限公司 | The system and technique of coke oven flue gas NO_x Reduction by Effective are realized using raw coke oven gas waste heat |
| CN109813130A (en) * | 2019-03-11 | 2019-05-28 | 中冶焦耐(大连)工程技术有限公司 | A kind of heat recovery coke oven high-temperature flue gas system |
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| Publication number | Publication date |
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| CN114777503A (en) | 2022-07-22 |
| WO2023185110A1 (en) | 2023-10-05 |
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