CN220507734U - Combustion system for synchronously removing carbon monoxide in flue gas - Google Patents
Combustion system for synchronously removing carbon monoxide in flue gas Download PDFInfo
- Publication number
- CN220507734U CN220507734U CN202321875358.XU CN202321875358U CN220507734U CN 220507734 U CN220507734 U CN 220507734U CN 202321875358 U CN202321875358 U CN 202321875358U CN 220507734 U CN220507734 U CN 220507734U
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- CN
- China
- Prior art keywords
- flue
- flue gas
- combustion
- carbon monoxide
- combustion chamber
- Prior art date
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 67
- 239000003546 flue gas Substances 0.000 title claims abstract description 48
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 26
- 238000005245 sintering Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 230000008676 import Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 import flue 1 Chemical compound 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model relates to a combustion system for synchronously removing carbon monoxide in flue gas, which comprises an inlet flue, burners and an outlet flue, wherein the inlet flue is provided with two groups of burners, the two groups of burners are respectively arranged at two sides of the inlet flue, and the inlet flue is also connected with the outlet flue. According to the utility model, after the combustion improver and the fuel are uniformly mixed in the mixing chamber, the high-temperature flue gas generated after the combustion improver and the fuel enter the combustion chamber and then enter the inlet flue through the outlet of the combustion chamber to be mixed with sintering flue gas in the inlet flue, and then the sintering flue gas is heated, the oppositely arranged burner can enhance the mixing of the hot flue gas and the sintering flue gas, so that the flue gas is uniformly mixed, the combustion chamber is positioned in the inlet flue, the heat dissipation of a hot air pipeline and the combustion chamber is reduced, the energy consumption is saved, meanwhile, the combustion flame extends out of the combustion chamber, and carbon monoxide in the sintering flue gas is combusted under the flame, so that the carbon monoxide content in the sintering flue gas can be reduced, and the efficiency and the process economy are improved.
Description
Technical Field
The utility model relates to the technical field of flue gas treatment, in particular to a combustion system for synchronously removing carbon monoxide in flue gas.
Background
The pollutants generated in the sintering process are the largest in proportion in the steel production process, and in view of increasingly strict emission standards in the steel industry, strict treatment of the pollutants generated in the sintering process is necessary. The pollutants generated in the sintering process comprise SO2, NOx, particulate matters and dioxin in the sintering flue gas, SO that the pollution to the atmosphere is generated, and meanwhile, CO generated by the sintering of the iron ore powder is also generated. Carbon monoxide is flammable and toxic, and is harmful to human bodies and the environment, so that carbon monoxide is also used as one of the evaluation parameters of the air quality index AQI and is also included as a tax collection object of exhaust gas pollutants.
In the prior art, sintering flue gas is generally desulfurized first and then denitrified so as to avoid reducing such as ammonia gas and the like from influencing the desulfurization efficiency, the temperature of dry desulfurization is generally controlled between 130 and 150 ℃, the temperature of semi-dry desulfurization is generally controlled between 80 and 90 ℃, and the temperature of wet desulfurization is generally controlled between 50 and 55 ℃. Therefore, after the desulfurization process is adopted and the flue gas enters the denitration process, the flue gas after desulfurization is usually heated to reach the temperature required by the operation of the Selective Catalytic Reduction (SCR) method catalyst, and the low-temperature catalyst is at least above 180 ℃.
However, the traditional external hot blast stove can generate heat dissipation when being heated, so that the energy utilization rate is increased, and the carbon monoxide content in the flue gas can be increased when the fuel is not completely combusted, so that the production benefit is reduced, and the pollution is increased.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a combustion system for synchronously removing carbon monoxide in flue gas, which comprises the following specific technical scheme:
the combustion system for synchronously removing carbon monoxide in flue gas comprises an inlet flue, burners and an outlet flue, wherein the inlet flue is provided with two groups of burners, the two groups of burners are respectively arranged on two sides of the inlet flue, the inlet flue is further connected with the outlet flue, the burners comprise a mixing chamber and a combustion chamber communicated with the mixing chamber, the top of the mixing chamber is communicated with a combustion improver inlet and a fuel inlet, and one end of the combustion chamber far away from the mixing chamber is connected with a combustion chamber outlet.
As an improvement of the technical scheme, the two groups of burners are arranged in opposite directions, so that the mixing of hot flue gas and sintering flue gas can be enhanced, and the flue gas is uniformly mixed.
As an improvement of the technical scheme, the combustion chamber and the combustion chamber outlet are positioned in the inlet flue, so that heat dissipation of the hot air pipeline and the combustion chamber is reduced, and energy consumption is saved.
As an improvement of the technical scheme, the combustion flame in the combustion chamber can extend into the inlet flue so that carbon monoxide in the sintering flue gas is combusted under the flame, the emission of polluted gas can be reduced, and the efficiency and the process economy are improved.
The utility model has the beneficial effects that:
after the combustion improver and the fuel are uniformly mixed in the mixing chamber, the high-temperature flue gas generated after the combustion of the combustion improver and the fuel enter the combustion chamber through the outlet of the combustion chamber, enters the inlet flue and the sintering flue gas inside the inlet flue, the sintering flue gas is firstly mixed and then heated, the oppositely arranged burner can enhance the mixing of the hot flue gas and the sintering flue gas, so that the flue gas is uniformly mixed, the combustion chamber is positioned in the inlet flue, the heat dissipation of a hot air pipeline and the combustion chamber is reduced, the energy consumption is saved, meanwhile, the combustion flame extends out of the combustion chamber, carbon monoxide in the sintering flue gas is combusted under the flame, the carbon monoxide content in the sintering flue gas can be reduced, the emission of polluted gas is reduced, and the efficiency and the economical efficiency of the process are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic illustration of the connection of the inlet flue to the burner in the present utility model.
Reference numerals: 1. an inlet flue; 2. a burner; 3. an outlet flue; 4. a combustion improver inlet; 5. a fuel inlet; 6. a mixing chamber; 7. a combustion chamber; 8. a burner outlet.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1 and 3, fig. 1 is a schematic diagram of an embodiment of the present utility model; FIG. 3 is a schematic illustration of the connection of the inlet flue to the burner in the present utility model.
The combustion system for synchronously removing carbon monoxide in flue gas comprises an inlet flue 1, a combustor 2 and an outlet flue 3, wherein the inlet flue 1 is provided with two groups of combustors 2, the two groups of combustors 2 are respectively arranged on two sides of the inlet flue 1, the inlet flue 1 is further connected with the outlet flue 3, the combustors 2 comprise a mixing chamber 6 and a combustion chamber 7 communicated with the mixing chamber 6, the top of the mixing chamber 6 is communicated with a combustion improver inlet 4 and a fuel inlet 5, and one end of the combustion chamber 7 far away from the mixing chamber 6 is connected with a combustion chamber outlet 8.
As shown in figure 1, two groups of burners 2 are arranged on two sides of the same end face of an inlet flue 1, and in normal operation, combustion improver and fuel are uniformly mixed in a mixing chamber 6, then combusted in a combustion chamber 7 to generate high-temperature flue gas, and the high-temperature flue gas enters the inlet flue 1 through a combustion chamber outlet 8 to be mixed with sintering flue gas in the inlet flue 1 to heat the sintering flue gas.
In order to reduce the heat dissipation of the hot air duct and the combustion chamber, the combustion chamber 7 and the combustion chamber outlet 8 are positioned inside the inlet flue 1, so that energy consumption can be saved.
The combustion flame in the combustion chamber 7 can extend into the inlet flue 1 so as to enable carbon monoxide in the sintering flue gas to burn under the flame, thereby reducing the carbon monoxide content in the sintering flue gas, reducing the emission of polluted gas and achieving the purposes of flue gas heating and carbon monoxide emission reduction.
Example two
As shown in fig. 2 and 3, fig. 2 is a schematic diagram of a second embodiment of the present utility model; FIG. 3 is a schematic illustration of the connection of the inlet flue to the burner in the present utility model.
The utility model provides a synchronous combustion system who desorption carbon monoxide in flue gas, including import flue 1, combustor 2 and export flue 3, two sets of combustors 2 are installed to import flue 1, and two sets of combustors 2 arrange respectively in the both sides of import flue 1, import flue 1 still is connected with export flue 3, combustor 2 includes mixing chamber 6 and the combustion chamber 7 that links up with mixing chamber 6, the top of mixing chamber 6 link up and is equipped with combustion improver import 4 and fuel inlet 5, the one end that mixing chamber 6 was kept away from to combustion chamber 7 is connected with combustion chamber export 8, wherein two sets of combustors 2 are the opposite direction setting.
Through the built-in opposite arranged combustor 2, the hot flue gas generated by combustion directly enters the inlet flue 1, so that the heat loss of a hot air pipeline and a combustion chamber of the hot air furnace is reduced, the fuel consumption is reduced, and simultaneously, the combustion flame enters the inlet flue 1, so that carbon monoxide in the sintering flue gas in the flue can be consumed, heat is released, the carbon monoxide emission is reduced, the energy consumption is further reduced, and the efficiency and the process economy are improved
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. The combustion system for synchronously removing carbon monoxide in flue gas is characterized by comprising: import flue (1), combustor (2) and export flue (3), two sets of combustor (2) are installed to import flue (1), and two sets of combustor (2) are arranged in the both sides of import flue (1) respectively, import flue (1) still is connected with export flue (3), combustor (2) including mixing chamber (6) and with mixing chamber (6) linked together combustion chamber (7), the top of mixing chamber (6) link up and are equipped with combustion improver import (4) and fuel inlet (5), the one end that mixing chamber (6) was kept away from to combustion chamber (7) is connected with combustion chamber export (8).
2. The combustion system for synchronously removing carbon monoxide from flue gas according to claim 1, wherein: the two groups of burners (2) are arranged oppositely.
3. The combustion system for synchronously removing carbon monoxide from flue gas according to claim 1, wherein: the combustion chamber (7) and the combustion chamber outlet (8) are positioned inside the inlet flue (1).
4. The combustion system for synchronously removing carbon monoxide from flue gas according to claim 1, wherein: the combustion flame in the combustion chamber (7) can extend into the inlet flue (1) so that carbon monoxide in the sintering flue gas burns under the flame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875358.XU CN220507734U (en) | 2023-07-17 | 2023-07-17 | Combustion system for synchronously removing carbon monoxide in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875358.XU CN220507734U (en) | 2023-07-17 | 2023-07-17 | Combustion system for synchronously removing carbon monoxide in flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220507734U true CN220507734U (en) | 2024-02-20 |
Family
ID=89869291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875358.XU Active CN220507734U (en) | 2023-07-17 | 2023-07-17 | Combustion system for synchronously removing carbon monoxide in flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220507734U (en) |
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2023
- 2023-07-17 CN CN202321875358.XU patent/CN220507734U/en active Active
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