CN112594711A - System and process for removing CO in sintering tail gas - Google Patents
System and process for removing CO in sintering tail gas Download PDFInfo
- Publication number
- CN112594711A CN112594711A CN202011444878.6A CN202011444878A CN112594711A CN 112594711 A CN112594711 A CN 112594711A CN 202011444878 A CN202011444878 A CN 202011444878A CN 112594711 A CN112594711 A CN 112594711A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- combustion device
- tail gas
- sintering
- combustion
- 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
Links
Images
Classifications
-
- 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
-
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Abstract
The invention discloses a system for removing CO in sintering tail gas, which comprises: the device comprises a sintering machine, an electric dust remover, a desulfurization device, a denitrification device and a chimney which are connected in sequence; the first combustion device is arranged on a first pipeline between the electric dust collector and the desulphurization device; a second combustion device disposed on the second pipe between the desulfurization device and the denitrification device. According to the system for removing CO in the sintering tail gas, the first combustion device is arranged on the first pipeline between the electric dust collector and the desulfurization device, and the second combustion device is arranged on the second pipeline between the desulfurization device and the denitration device, so that CO in the sintering tail gas discharged by the sintering machine can be combusted twice through the first combustion device and the second combustion device, the content of CO in the sintering tail gas can be greatly reduced, the emission requirement can be met, and the pollution to the environment is reduced.
Description
Technical Field
The invention relates to the technical field of black smelting, in particular to a system and a process for removing CO in sintering tail gas.
Background
In recent years, the environmental protection requirement is gradually strict, and the emission standard of sintering pollutants is higher and higher. In addition to the requirements for emission standards for NOx and SO2, requirements for sintering CO emissions (CO concentrations less than 5000 mg/Nm)3). From the actual emission situation, the CO emission range of all sintering machines is 5000-10000mg/Nm3In the meantime.
The current sintering machine does not control the emission of CO, and the sintering system cannot meet the emission requirement.
Disclosure of Invention
The application provides a system for removing CO in sintering tail gas, has solved among the prior art sintering system and can't control the emission of CO, can't satisfy the technical problem who discharges the requirement.
The system for getting rid of CO in sintering tail gas that this application embodiment provided, the system includes:
the device comprises a sintering machine, an electric dust remover, a desulfurization device, a denitrification device and a chimney which are connected in sequence;
the first combustion device is arranged on a first pipeline between the electric dust collector and the desulphurization device;
a second combustion device disposed on the second pipe between the desulfurization device and the denitrification device.
Preferably, the first and second combustion devices each comprise two oppositely disposed burners.
Preferably, the side surfaces of the first pipeline and the second pipeline are provided with holes, the burner is inserted into the corresponding first pipeline and the second pipeline through the holes, and the burner is connected with the first pipeline and the second pipeline in a sealing manner.
Preferably, the system further comprises:
the flow guide piece is arranged inside the first pipeline and the second pipeline and is positioned at an upstream position corresponding to the combustor, and the section width of the flow guide piece is gradually reduced along the gas flowing direction in the first pipeline and the second pipeline.
Preferably, the distance between one end of the flow guide piece corresponding to the combustor and the axis of the first pipeline or the second pipeline is smaller than the distance between a combustion port of the combustor and the axis of the first pipeline or the second pipeline.
Preferably, the flow guide piece comprises a plurality of flow guide plates, the flow guide plates are uniformly arranged around the axis of the first pipeline and the axis of the second pipeline at intervals, the flow guide plates are in sealing connection with the first pipeline and the second pipeline, and at least two flow guide plates cover the combustion port of the combustor.
Preferably, the flow guide piece is a conical cylinder, the conical cylinder is connected with the first pipeline and the second pipeline in a sealing mode, and a small opening end of the conical cylinder is arranged towards the direction of the combustor.
Preferably, a fuel pack and an air pack are arranged on the outer sides of the first pipeline and the second pipeline, the fuel pack and the air pack are connected with the corresponding burners, a first control valve is arranged between the fuel pack and the corresponding burners, and a second control valve is arranged between the air pack and the corresponding burners.
A process method for removing CO in sintering tail gas is applied to the system for removing CO in sintering tail gas, and comprises the following steps:
and adjusting the opening degree of the first control valve and the second control valve corresponding to the first combustion device and the second combustion device, so that the flame area of the first combustion device and the flame area of the second combustion device cover the cross-sectional area of the first pipeline and the second pipeline after the plasma igniter is ignited.
Preferably, the process further comprises:
the opening degree of a first control valve and a second control valve corresponding to the first combustion device and the second combustion device is adjusted, so that the proportion of fuel and air delivered to the first combustion device and the second combustion device by the fuel packet and the air packet is in a range of 1: 0.8 to 1: 1, adjusting the flame temperature on the first combustion device and the second combustion device to be less than 400 ℃, and heating the sintering flue gas to be less than 100 ℃.
Preferably, the process further comprises: when the CO content in the tail gas discharged from the chimney is reduced to 5000mg/Nm3When the first combustion device is closed, the second combustion device is opened; or
When the CO content in the tail gas discharged from the chimney is more than 5000mg/Nm3Hereinafter, the first combustion device and the second combustion device are simultaneously turned on.
The beneficial effect of this application is as follows:
1. the first combustion device is arranged on the first pipeline between the electric dust collector and the desulfurization device, and the second combustion device is arranged on the second pipeline between the desulfurization device and the denitration device, so that CO in sintering tail gas discharged by the sintering machine can be combusted twice through the first combustion device and the second combustion device, the content of CO in the sintering tail gas can be greatly reduced, the emission requirement can be met, and the pollution to the environment is reduced;
2. the burners on the first pipeline and the second pipeline are arranged oppositely, so that flame distribution inside the first pipeline and the second pipeline is more uniform, the combustion effect of CO in tail gas can be improved, and combustion is more sufficient;
3. through all setting up water conservancy diversion spare in first pipeline and second pipeline are inside, because water conservancy diversion spare inclines to the centre gradually along the flow direction of first pipeline and second pipeline, make tail gas concentrate the inside central authorities of flow direction first pipeline and second pipeline through water conservancy diversion spare, the flame that two relative combustors all lighted simultaneously also towards the inside central authorities of first pipeline and second pipeline burning, make tail gas can concentrate the flame contact of lighting with the combustor, the combustion effect of CO in the tail gas has been improved greatly, the burning is more abundant.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic diagram of a system for removing CO from sintering tail gas according to the present application;
FIG. 2 is a schematic view of the construction of a first combustion device and a second combustion device according to the present application;
FIG. 3 is a schematic view of the structure of the flow guide member of the present application;
fig. 4 is a second schematic structural view of the flow guide member of the present application.
In the figure, 1-sintering machine; 2-an electric dust remover; 3-a first combustion device; 31-a burner; 32-well; 33-fuel package; 34-air bag; 35-a first control valve; 36-a second control valve; 37-a flow guide; 4-a desulfurization unit; 41-a first conduit; 42-a second conduit; 5-a second combustion device; 6-a denitration device; 7-chimney.
Detailed Description
The embodiment of the application provides a system for desorption CO in sintering tail gas, has solved among the prior art sintering system and can't control the emission of CO, can't satisfy the technical problem who discharges the requirement.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
as shown in fig. 1 and 2, a system for removing CO from sintering tail gas provided in an embodiment of the present application includes:
the device comprises a sintering machine 1, an electric dust remover 2, a desulphurization device 4, a denitration device 6 and a chimney 7 which are connected in sequence;
a first combustion device 3 is arranged on a first pipeline 41 between the electric dust collector 2 and the desulphurization device 4, and CO in tail gas discharged by the sintering machine 1 is preliminarily removed through the first combustion device 3; a second combustion device 5 is provided in the second pipe 42 between the desulfurization device 4 and the denitration device 6, and CO in the exhaust gas purified by the desulfurization device 4 is removed again by the second combustion device 5, thereby further improving the effect of removing CO in the exhaust gas.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In order to solve the problem of insufficient combustion of CO in the tail gas caused by uneven flame distribution in the pipeline in the prior art, the application provides a system for removing CO in the sintering tail gas, wherein each of the first combustion device 3 and the second combustion device 5 comprises two burners 31 which are oppositely arranged, opposite holes 32 are respectively formed in the side surfaces of the first pipeline 41 and the second pipeline 42, then the burners 31 are inserted into the holes 32, so that the combustion ports of the burners 31 extend into the first pipeline 41 and the second pipeline 42, and in the installation process, the burners 31 are hermetically connected with the holes 32 on the first pipeline 41 and the second pipeline 42, thereby avoiding tail gas leakage; a fuel pack 33 and an air pack 34 are provided outside the first duct 41 and the second duct 42, in this embodiment, the fuel in the fuel pack 33 is blast furnace gas, the fuel pack 33 and the air pack 34 are both connected to the corresponding burners 31 through ducts, a first control valve 35 is provided between the fuel pack 33 and the corresponding burners 31, a second control valve 36 is provided between the air pack 34 and the corresponding burners 31, and the burners 31 are ignited by a plasma igniter; the amount of fuel entering the combustor 31 is adjusted by adjusting the opening degree of the first control valve 35, the amount of air entering the combustor 31 is adjusted by adjusting the opening degree of the second control valve 36, and the ratio of the fuel to the air is adjusted, so that the combustion of CO and fuel in the tail gas is more sufficient, and the phenomenon that the combustion is insufficient to cause the discharge of the fuel and CO in the tail gas through the chimney 7 to cause environmental pollution is avoided.
In order to solve the problem of poor combustion effect of CO in tail gas in the prior art, the application provides a system for removing CO in sintering tail gas, a flow guide 37 is provided inside the first and second pipes 41 and 42, the flow guide 37 is provided at a position upstream of the first and second pipes 41 and 42 corresponding to the combustor 31, the cross-sectional width of the flow guide member 37 is gradually reduced along the gas flowing direction in the first pipe 41 and the second pipe 42, so that the tail gas flows to the center of the first pipe 41 and the second pipe 42 through the flow guide member 37 in a concentrated manner, the tail gas passes through the flow guide member 37 and then directly contacts with the flame of the burner 31, meanwhile, flames ignited by the two opposite burners 31 are combusted towards the centers inside the first pipeline 41 and the second pipeline 42, and the flames at the centers inside the first pipeline 41 and the second pipeline 42 are more sufficient, so that the purification effect of CO in the tail gas can be further improved;
in an alternative embodiment, as shown in fig. 3, the flow guide member 37 comprises a plurality of flow guide plates, the baffles are evenly spaced around the axis of the first and second ducts 41 and 42, the number of the optional guide plates is 2-6, in this embodiment, the guide plates are preferably 2, the guide plates are hermetically connected with the first pipe 41 and the second pipe 42, because the two burners 31 are oppositely arranged, the flame between the two burners 31 and the pipe walls of the first pipe 41 and the second pipe 42 is weakest, at least two guide plates cover the combustion ports of the burners 31, the guide plates cover the burners 31, and the tail gas is reduced from flowing between the burners 31 and the pipe walls of the first pipe 41 and the second pipe 42, so that the tail gas can be intensively contacted with the flame center ignited by the burners 31, and CO in the tail gas can be fully combusted; the guide plates are adopted to guide the tail gas, so that the guide plates are simpler to connect with the inner walls of the first pipeline 41 and the second pipeline 42.
In another alternative embodiment, as shown in fig. 4, the flow guide member 37 is a conical cylinder, the conical cylinder is hermetically connected to the first pipeline 41 and the second pipeline 42, a small end of the conical cylinder is disposed toward the direction of the burner 31, the flow guide member guides the exhaust gas through the conical cylinder, the exhaust gas can be completely guided to the center inside the first pipeline 41 and the second pipeline 42, and the combustion effect of CO in the exhaust gas can be further improved.
A process for removing CO in sintering tail gas is applied to the system for removing CO in sintering tail gas; the opening degree of the first control valve 35 and the second control valve 36 corresponding to each burner 31 is adjusted to ensure that the burner 31 can form a stable flame after the plasma igniter is ignited, and the flame area can cover the whole cross-sectional area of the first pipe 41 and the second pipe 42.
By adjusting the opening degree of the first control valve 35 and the second control valve 36 corresponding to each burner 31, the ratio of fuel and air delivered to the burner 31 by the fuel pack 33 and the air pack 34 is set to 1: 0.8 to 1: 1, adjusting the flame temperature on the combustor 31 to be less than 400 ℃, and heating the sintering flue gas to be less than 100 ℃ after heating.
When the CO content in the tail gas discharged from the chimney 7 is reduced to below 5000, closing the first combustion device 3, and opening the second combustion device 5; or
When the CO content in the tail gas discharged from the chimney 7 is more than 5000, the first combustion device 3 and the second combustion device 5 are opened simultaneously.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A system for removing CO from sintering tail gas, the system comprising:
the device comprises a sintering machine, an electric dust remover, a desulfurization device, a denitrification device and a chimney which are connected in sequence;
the first combustion device is arranged on a first pipeline between the electric dust collector and the desulphurization device;
a second combustion device disposed on the second pipe between the desulfurization device and the denitrification device.
2. The system for removing CO from a sintering tail gas as claimed in claim 1, wherein the first combustion device and the second combustion device each comprise two oppositely arranged burners.
3. The system for removing CO from sintering tail gas as claimed in claim 2, wherein the first pipeline and the second pipeline are provided with holes on the side surfaces, the burner is inserted into the corresponding first pipeline and the corresponding second pipeline through the holes, and the burner is connected with the first pipeline and the second pipeline in a sealing manner.
4. The system for removing CO from sintering tail gas as set forth in claim 2, further comprising:
the flow guide piece is arranged inside the first pipeline and the second pipeline and is positioned at an upstream position corresponding to the combustor, and the section width of the flow guide piece is gradually reduced along the gas flowing direction in the first pipeline and the second pipeline.
5. The system for removing CO from sintering tail gas as claimed in claim 4, wherein the distance between one end of the flow guide piece corresponding to the combustor and the axis of the first pipeline or the second pipeline is smaller than the distance between the combustion port of the combustor and the axis of the first pipeline or the second pipeline.
6. The system for removing CO from sintering tail gas as claimed in claim 4, wherein the flow guiding member comprises a plurality of flow guiding plates, the flow guiding plates are evenly arranged around the axis of the first pipeline and the second pipeline at intervals, the flow guiding plates are connected with the first pipeline and the second pipeline in a sealing way, and at least two flow guiding plates cover the combustion port of the combustor;
or the like, or, alternatively,
the flow guide piece is a conical cylinder, the conical cylinder is connected with the first pipeline and the second pipeline in a sealing mode, and a small opening end of the conical cylinder faces the direction of the combustor.
7. The system for removing CO from sintering tail gas as claimed in claim 2, wherein a fuel bag and an air bag are arranged outside the first pipeline and the second pipeline, the fuel bag and the air bag are connected with the corresponding burners, a first control valve is arranged between the fuel bag and the corresponding burners, and a second control valve is arranged between the air bag and the corresponding burners.
8. A process method for removing CO from sintering tail gas, which is applied to the system for removing CO from sintering tail gas in any one of claims 1 to 7, and comprises the following steps:
and adjusting the opening degree of the first control valve and the second control valve corresponding to the first combustion device and the second combustion device, so that the flame area of the first combustion device and the flame area of the second combustion device cover the cross-sectional area of the first pipeline and the second pipeline after the plasma igniter is ignited.
9. The process for removing CO from sintering tail gas as claimed in claim 8, wherein the process further comprises:
the opening degree of a first control valve and a second control valve corresponding to the first combustion device and the second combustion device is adjusted, so that the proportion of fuel and air conveyed to the first combustion device and the second combustion device by the fuel packet and the air packet is 1: 0.8-1: 1, the flame temperature on the first combustion device and the second combustion device is adjusted to be less than 400 ℃, and the temperature of the sintering flue gas after heating is increased to be less than 100 ℃.
10. The process for removing CO from sintering tail gas as claimed in claim 8, wherein the process further comprises:
when the CO content in the tail gas discharged from the chimney is reduced to 5000mg/Nm3When the first combustion device is closed, the second combustion device is opened; or
When the CO content in the tail gas discharged from the chimney is more than 5000mg/Nm3Hereinafter, the first combustion device and the second combustion device are simultaneously turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011444878.6A CN112594711A (en) | 2020-12-08 | 2020-12-08 | System and process for removing CO in sintering tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011444878.6A CN112594711A (en) | 2020-12-08 | 2020-12-08 | System and process for removing CO in sintering tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112594711A true CN112594711A (en) | 2021-04-02 |
Family
ID=75192486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011444878.6A Pending CN112594711A (en) | 2020-12-08 | 2020-12-08 | System and process for removing CO in sintering tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112594711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251793A (en) * | 2021-05-17 | 2021-08-13 | 中冶长天国际工程有限责任公司 | Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004278941A (en) * | 2003-03-17 | 2004-10-07 | Babcock Hitachi Kk | Waste gasifying and melting device |
| CN108607341A (en) * | 2018-04-19 | 2018-10-02 | 杨清海 | A kind of collaboration treatment process of sintering flue gas pollutant removing and Btu utilization |
| CN110160066A (en) * | 2019-01-30 | 2019-08-23 | 北京永博洁净科技有限公司 | Flue gas heating system |
| CN110237656A (en) * | 2019-07-17 | 2019-09-17 | 南通惠农生物有机肥有限公司 | A kind of waste gas cleaning system of disposition feces of livestock and poultry production organic fertilizer |
| CN111054170A (en) * | 2019-12-27 | 2020-04-24 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas circulation combined full pollutant treatment device and method |
-
2020
- 2020-12-08 CN CN202011444878.6A patent/CN112594711A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004278941A (en) * | 2003-03-17 | 2004-10-07 | Babcock Hitachi Kk | Waste gasifying and melting device |
| CN108607341A (en) * | 2018-04-19 | 2018-10-02 | 杨清海 | A kind of collaboration treatment process of sintering flue gas pollutant removing and Btu utilization |
| CN110160066A (en) * | 2019-01-30 | 2019-08-23 | 北京永博洁净科技有限公司 | Flue gas heating system |
| CN110237656A (en) * | 2019-07-17 | 2019-09-17 | 南通惠农生物有机肥有限公司 | A kind of waste gas cleaning system of disposition feces of livestock and poultry production organic fertilizer |
| CN111054170A (en) * | 2019-12-27 | 2020-04-24 | 北京中航泰达环保科技股份有限公司 | Sintering flue gas circulation combined full pollutant treatment device and method |
Non-Patent Citations (1)
| Title |
|---|
| 张亮明，夏桂娟: "全国工业炉窑自动控制学术会议论文集 （上册）", 中国金属学会冶金自动化学会；中国自动化学会应用专业委员会, pages: 17 - 18 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251793A (en) * | 2021-05-17 | 2021-08-13 | 中冶长天国际工程有限责任公司 | Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof |
| CN113251793B (en) * | 2021-05-17 | 2022-06-03 | 中冶长天国际工程有限责任公司 | Oxygen-enriched low-CO sintering method, oxygen-enriched low-CO sintering machine and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107899415B (en) | Coke oven flue gas wide-load denitration device | |
| CN112594711A (en) | System and process for removing CO in sintering tail gas | |
| CN205402751U (en) | Waste gas incinerator | |
| CN202012918U (en) | Gas burner | |
| CN215062121U (en) | Organic waste gas burns device | |
| CN210088912U (en) | Tubular air preheater capable of preventing ammonium bisulfate from being blocked | |
| CN110068010A (en) | A kind of adherent wind adding set of Opposite Firing Boiler side wall | |
| CN107062224B (en) | Dispersion type heat storage combustion system | |
| CN211921415U (en) | Processing system of coke oven and dry quenching furnace diffused gas | |
| CN202082947U (en) | Environment-friendly energy-saving heating furnace device | |
| KR101730545B1 (en) | Low NOx burner | |
| CN210441681U (en) | Low-nitrogen combustion device of heat accumulating type steel rolling heating furnace | |
| CN212673215U (en) | Low-nitrogen burner | |
| CN209271187U (en) | Denitration reaction device and smoke processing system | |
| CN210107426U (en) | Sulfur-containing tail gas incineration device | |
| CN209221872U (en) | A kind of recuperative heater flue gas denitrification system of two-stage accumulation of heat | |
| JP3462394B2 (en) | Combustion control method of regenerative burner device and burner device | |
| CN101440955B (en) | Low nitrogen combustion apparatus and method | |
| CN111981478A (en) | Low-nitrogen combustor, low-nitrogen combustion system and combustion method thereof | |
| CN219244308U (en) | Radiant tube heating device | |
| CN219510799U (en) | Low NOx, energy-saving dual-purpose heat accumulating type burner | |
| CN216953022U (en) | Pulverized coal combustion system with gas-doped combustion | |
| CN208943773U (en) | Hydrogenation plant fume recovery system | |
| CN2620188Y (en) | Heat storage burner | |
| CN212108401U (en) | Air and flue gas recirculation oxygen-enriched dual-combustion-supporting burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |