CN220582472U - Backflow flue gas recirculation industrial boiler combustion device - Google Patents
Backflow flue gas recirculation industrial boiler combustion device Download PDFInfo
- Publication number
- CN220582472U CN220582472U CN202322107892.2U CN202322107892U CN220582472U CN 220582472 U CN220582472 U CN 220582472U CN 202322107892 U CN202322107892 U CN 202322107892U CN 220582472 U CN220582472 U CN 220582472U
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- boiler
- flue gas
- combustion
- gas recirculation
- groove
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 64
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003546 flue gas Substances 0.000 title claims abstract description 57
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model relates to a backflow flue gas recirculation industrial boiler combustion device which comprises a boiler, a treatment box and a discharge pipe, wherein the treatment box is arranged at the top of the boiler, the discharge pipe is arranged at the top of the treatment box, a combustion cavity is formed in the boiler, discharge grooves are formed between two ends of the combustion cavity and the treatment box, a backflow cavity is formed between two sides of the top of the combustion cavity and the combustion cavity, an igniter is arranged at the front side of the boiler, one end of the igniter is arranged in the combustion cavity, an oxygen inlet groove is formed between the front side of the boiler and the combustion cavity, an air inlet pipe is formed between the rear side of the boiler and the combustion cavity, and a flue gas emission control component is arranged in the boiler.
Description
Technical Field
The utility model relates to the technical field of boiler devices, in particular to a backflow flue gas recirculation industrial boiler combustion device.
Background
A great deal of industrial tail gas (such as blast furnace gas, converter gas, semi-coke tail gas and the like) generated in the production process of iron and steel enterprises and chemical enterprises. The industrial tail gas has a certain heat value, and the combustion of the industrial tail gas by the gas-fired boiler can reduce environmental pollution and effectively utilize energy, so that the common understanding in the industry is achieved, and the flue gas recycling technology is also applied to the gas-fired boiler as a main technology for reducing the pollutant emission of the boiler.
The patent with the publication number of CN215831897U discloses a gas boiler flue gas recirculation device and boiler, and this gas boiler flue gas recirculation device includes the recirculation flue, is equipped with the recirculation flue fan on the recirculation flue, and recirculation flue one end is equipped with the flue gas bellows, and the other end is used for connecting the afterbody flue of boiler, and the flue gas bellows is used for connecting in the furnace of boiler, is equipped with the recirculation flue gas spout in the flue gas bellows, and the recirculation flue gas spout is including locating a plurality of slit holes on the boiler water-cooling wall, and the position that the burner of boiler was connected to the recirculation flue gas spout is lower than the gas burner of boiler, and the difference in height is greater than 1 meter. According to the utility model, the independent flue gas bellows and the slit type recirculation flue gas nozzle are utilized to introduce the recirculation flue gas into the combustion area at the lower part of the hearth, the integral temperature of the area is reduced, so that NOX generation is inhibited, the slit type recirculation flue gas nozzle can enable the recirculation flue gas to run at a lower wind speed, collision of flame of the gas burner is avoided, and stable operation of the gas burner is ensured.
Disclosure of Invention
The utility model aims to provide a backflow flue gas recirculation industrial boiler combustion device, which can carry out circulating combustion on industrial flue gas through a boiler, so that the discharged flue gas can be combusted and purified, and the residence time of the flue gas in a combustion cavity can be prolonged through an emission control assembly, so that the thorough combustion can be ensured, and the problems in the background technology can be solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a backward flow flue gas recirculation industrial boiler burner, includes boiler, treatment box and exhaust pipe, the treatment box is installed the boiler top, the exhaust pipe is installed the treatment box top, the combustion chamber has been seted up in the boiler, the combustion chamber both ends all with the discharge groove has been seted up between the treatment box, the combustion chamber top both sides all with the backward flow chamber has been seted up between the combustion chamber, the igniter is installed to the boiler front side, igniter one end sets up in the combustion chamber, the boiler front side with oxygen inlet groove has been seted up between the combustion chamber, the boiler rear side with the intake pipe has been seted up between the combustion chamber, be provided with fume emission control subassembly in the boiler.
Preferably, the flue gas emission control assembly comprises a pulse type servo motor, a control board and a brake gear, a containing cavity is formed in the boiler and communicated with the air inlet pipe, the control board is arranged in the containing cavity in a clamping mode, and the residence time of flue gas in the combustion cavity can be prolonged through the emission control assembly, so that thorough combustion can be guaranteed.
Preferably, the inner wall of the accommodating cavity is provided with a mounting groove, and the inner wall of the mounting groove is internally provided with a placement cavity.
Preferably, the pulse type servo motor is installed in the installation cavity, and the brake gear is arranged in the installation groove and is installed on an output shaft of the pulse type servo motor, so that the brake gear can be driven to rotate through the pulse type servo motor.
Preferably, the bottom of the control board is provided with a tooth track groove, and one end of the braking gear is meshed with the tooth track groove, so that the control board can be driven to move.
Preferably, be provided with filter unit in the processing case, filter unit includes mounting bracket, filter and pneumatic cylinder, can conveniently filter impurity such as dust that produces when burning flue gas through filter unit to can conveniently clear up or change the filter and carry out fast operation in needs.
Preferably, a clamping groove is formed in one side of the treatment box, the mounting frame is arranged in the treatment box and clamped in the clamping groove, and the filter plate is mounted in the mounting frame.
Preferably, the hydraulic cylinder is installed on one side of the treatment box, the other side of the installation frame is installed on one end of the hydraulic cylinder, and the installation frame can be controlled to move through the hydraulic cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, industrial flue gas can be circularly combusted through the boiler, so that the discharged flue gas can be combusted and purified, and the residence time of the flue gas in the combustion cavity can be prolonged through the emission control assembly, so that the thorough combustion can be ensured.
The utility model can conveniently filter out dust and other impurities generated when the smoke is burnt through the filter assembly, and can conveniently clean or replace the filter plate for quick operation.
Drawings
FIG. 1 is a front perspective view of the present utility model;
FIG. 2 is a rear perspective view of the present utility model;
FIG. 3 is a front cross-sectional view of the present utility model;
fig. 4 is a side cross-sectional view of the present utility model.
In the figure: 1. a boiler; 2. a treatment box; 3. a discharge pipe; 5. a combustion chamber; 6. a discharge tank; 7. a reflow chamber; 8. an igniter; 9. an oxygen inlet groove; 10. an air inlet pipe; 11. a smoke emission control assembly; 1101. a pulse type servo motor; 1102. a control board; 1103. a brake gear; 12. tooth track grooves; 13. a filter assembly; 1301. a mounting frame; 1302. a filter plate; 1303. and a hydraulic cylinder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a backward flow flue gas recirculation industrial boiler burner, including boiler 1, processing case 2 and exhaust pipe 3, processing case 2 installs at boiler 1 top, exhaust pipe 3 installs at processing case 2 top, combustion chamber 5 has been seted up in the boiler 1, discharge groove 6 has all been seted up between combustion chamber 5 both ends and the processing case 2, backward flow chamber 7 has all been seted up between combustion chamber 5 and the both sides of combustion chamber 5 top, igniter 8 is installed to boiler 1 front side, igniter 8 one end sets up in combustion chamber 5, oxygen inlet groove 9 has been seted up between boiler 1 front side and the combustion chamber 5, intake pipe 10 has been seted up between boiler 1 rear side and the combustion chamber 5, be provided with flue gas emission control assembly 11 in the boiler 1.
The flue gas emission control assembly 11 comprises a pulse type servo motor 1101, a control board 1102 and a brake gear 1103, wherein a containing cavity is formed in the boiler 1 and is communicated with the air inlet pipe 10, the control board 1102 is clamped in the containing cavity, an installation groove is formed in the inner wall of the containing cavity, a placement cavity is formed in the inner wall of the installation groove, the pulse type servo motor 1101 is installed in the placement cavity, the brake gear 1103 is arranged in the installation groove and on an output shaft of the pulse type servo motor 1101, a tooth rail groove 12 is formed in the bottom of the control board 1102, and one end of the brake gear 1103 is meshed with the tooth rail groove 12.
In this embodiment, the boiler 1 can perform cyclic combustion on industrial flue gas, thereby the combustion purification of the discharged flue gas can be performed, the residence time of the flue gas in the combustion chamber 5 can be prolonged through the emission control component, so the combustion is thoroughly ensured, during combustion, the flue gas is connected through the air inlet pipe 10, then oxygen is injected into the combustion chamber 5 through the oxygen inlet groove 9, and then the igniter 8 is used for ignition, so the flue gas can be ignited, and then the pulse type servo motor 1101 is connected with an external power supply, the combusted flue gas can enter the treatment box 2 through the exhaust groove 6, the pulse type servo motor 1101 can drive the brake gear 1103 to rotate, so the control board 1102 can be driven to move through the tooth track groove 12, as shown in fig. 3, the pulse type servo motor 1101 can intermittently change the rotation direction, so the control board 1102 can be driven to continuously move left and right, so the exhaust groove 6 on two sides can be reciprocally blocked, when the exhaust groove 6 on one side is blocked, and the discharged flue gas can flow back to the lower part of the combustion chamber 5 through one side, so the repeated combustion can be ensured to be fully combusted.
As a further embodiment of the above technical solution: as shown in fig. 2 and 4, a filter assembly 13 is disposed in the processing box 2, the filter assembly 13 includes a mounting frame 1301, a filter plate 1302 and a hydraulic cylinder 1303, a clamping groove is formed in one side of the processing box 2, the mounting frame 1301 is disposed in the processing box 2 and clamped in the clamping groove, the filter plate 1302 is disposed in the mounting frame 1301, the hydraulic cylinder 1303 is disposed on one side of the processing box 2, and the other side of the mounting frame 1301 is disposed at one end of the hydraulic cylinder 1303.
In this embodiment, can conveniently filter impurity such as dust that produces when burning flue gas through filter unit 13 to can conveniently carry out the fast operation when needs clearance or change filter 1302, during the use, can pass through filter 1302 and finally follow discharge tube 3 when the flue gas is discharged into in the treatment case 2 in the boiler 1, during the filter 1302, impurity such as dust that produces when conveniently filtering the burning flue gas when filter 1302, when clearance or change filter 1302, be connected pneumatic cylinder 1303 and external power supply, pneumatic cylinder 1303 can be with mounting bracket 1301 outside release, then handle the filter layer can.
The working principle of the utility model is as follows:
the flue gas is connected through the air inlet pipe 10, then oxygen is injected into the combustion chamber 5 through the oxygen inlet groove 9, ignition is carried out by using the igniter 8, so that the flue gas can be ignited, then the pulse type servo motor 1101 is connected with an external power supply, the burnt flue gas can enter the treatment box 2 through the discharge groove 6, the pulse type servo motor 1101 can drive the brake gear 1103 to rotate, and therefore the control board 1102 can be driven to move through the tooth track groove 12, as shown in fig. 3, the pulse type servo motor 1101 can intermittently change the rotation direction, and therefore the control board 1102 can be driven to continuously move left and right, so that the discharge grooves 6 on two sides can be plugged up to and fro, when one side of the discharge groove 6 is plugged, the flue gas to be discharged can flow back to the lower part of the combustion chamber 5 through one side of the backflow pipe, so that the combustion can be repeated, so that the full combustion can be ensured, when the flue gas in the boiler 1 is discharged into the treatment box 2, the filter board 1302 can pass through the filter board 1302 and finally be discharged from the discharge pipe 3, when the filter board 1302 passes through the filter board 1302, dust and the like generated when the combustion gas can be conveniently filtered, the filter board 1303 can be cleaned or replaced, the filter board 1302 can be connected with the power supply to the outside, and the hydraulic cylinder 1303 can be processed outside.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A reflux flue gas recirculation industrial boiler combustion device, comprising:
a boiler (1), a treatment box (2) and a discharge pipe (3), wherein the treatment box (2) is arranged at the top of the boiler (1), and the discharge pipe (3) is arranged at the top of the treatment box (2);
the boiler comprises a combustion chamber (5), wherein the combustion chamber (5) is arranged in the boiler (1), a discharge groove (6) is arranged between two ends of the combustion chamber (5) and the treatment box (2), and a backflow chamber (7) is arranged between two sides of the top of the combustion chamber (5) and the combustion chamber (5);
the ignition device comprises an igniter (8), wherein the igniter (8) is arranged on the front side of the boiler (1), one end of the igniter (8) is arranged in the combustion cavity (5), and an oxygen inlet groove (9) is formed between the front side of the boiler (1) and the combustion cavity (5);
the gas inlet pipe (10), gas inlet pipe (10) has been seted up between boiler (1) rear side with combustion chamber (5), be provided with in boiler (1) flue gas emission control subassembly (11).
2. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 1, wherein: the smoke emission control assembly (11) comprises a pulse type servo motor (1101), a control board (1102) and a brake gear (1103), a containing cavity is formed in the boiler (1), the containing cavity is communicated with the air inlet pipe (10), and the control board (1102) is clamped in the containing cavity.
3. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 2, wherein: the inner wall of the accommodating cavity is provided with a mounting groove, and the inner wall of the mounting groove is internally provided with a placement cavity.
4. A recirculated flue gas recirculation industrial boiler combustion apparatus according to claim 3, wherein: the impulse type servo motor (1101) is installed in the installation cavity, and the brake gear (1103) is arranged in the installation groove and is installed on an output shaft of the impulse type servo motor (1101).
5. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 4, wherein: the bottom of the control board (1102) is provided with a tooth track groove (12), and one end of the braking gear (1103) is meshed with the tooth track groove (12).
6. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 1, wherein: a filter assembly (13) is arranged in the processing box (2), and the filter assembly (13) comprises a mounting frame (1301), a filter plate (1302) and a hydraulic cylinder (1303).
7. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 6, wherein: the clamping groove is formed in one side of the processing box (2), the mounting frame (1301) is arranged in the processing box (2) and clamped in the clamping groove, and the filter plate (1302) is mounted in the mounting frame (1301).
8. A reflow flue gas recirculation industrial boiler combustion apparatus in accordance with claim 6, wherein: the hydraulic cylinder (1303) is arranged on one side of the processing box (2), and the other side of the mounting frame (1301) is arranged at one end of the hydraulic cylinder (1303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107892.2U CN220582472U (en) | 2023-08-07 | 2023-08-07 | Backflow flue gas recirculation industrial boiler combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107892.2U CN220582472U (en) | 2023-08-07 | 2023-08-07 | Backflow flue gas recirculation industrial boiler combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220582472U true CN220582472U (en) | 2024-03-12 |
Family
ID=90113314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322107892.2U Active CN220582472U (en) | 2023-08-07 | 2023-08-07 | Backflow flue gas recirculation industrial boiler combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220582472U (en) |
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2023
- 2023-08-07 CN CN202322107892.2U patent/CN220582472U/en active Active
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