CN213272657U - Catalytic oxidation furnace convenient to long-term treatment waste gas - Google Patents
Catalytic oxidation furnace convenient to long-term treatment waste gas Download PDFInfo
- Publication number
- CN213272657U CN213272657U CN202022151245.8U CN202022151245U CN213272657U CN 213272657 U CN213272657 U CN 213272657U CN 202022151245 U CN202022151245 U CN 202022151245U CN 213272657 U CN213272657 U CN 213272657U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- heat exchanger
- catalytic oxidation
- catalyst
- furnace body
- 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.)
- Active
Links
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Incineration Of Waste (AREA)
Abstract
The application relates to a catalytic oxidation furnace convenient for long-acting treatment of waste gas, which relates to the technical field of waste gas combustion cracking and comprises a furnace body, a heat exchanger, a catalyst, a burner and a desorption fan, wherein the heat exchanger, the catalyst and the burner are sequentially arranged in the furnace body; still be provided with first bolster in the furnace body, first bolster is located between combustor and the catalyst, and the waste gas advances that the pipe keeps away from the one end of heat exchanger and is connected with the furnace body and be located between catalyst and the first bolster. This application has the flow direction catalyst that makes waste gas can be gentle to the condition that the circulation passageway that reduces waste gas blockked up takes place, and then is convenient for promote the holistic treatment effeciency of catalytic oxidation technology's effect.
Description
Technical Field
The application relates to the field of waste gas combustion cracking, in particular to a catalytic oxidation furnace convenient for long-acting treatment of waste gas.
Background
Volatile organic compounds (VOCs for short) are organic compounds which participate in atmospheric photochemical reactions or are determined by measurement or calculation according to a defined method. The Catalytic Oxidation (CO) technology is used for oxidizing and decomposing VOCs in organic waste gas into CO2 and H2O at a low temperature (300-450 ℃) by using a catalyst.
Catalytic oxidation furnaces (CO furnaces) have found widespread use in oxidative combustion based on their particular performance and structure. The catalytic oxidation furnace in the related art, as shown in fig. 1, includes a furnace body 1, a heat exchanger 15 located inside the furnace body 1, a catalyst 14 stacked in two layers, a burner 13, and a desorption fan 16, an NG heater 12 and a combustion fan 11 located outside the furnace body 1, wherein the catalyst 14 is located between the heat exchanger 15 and the burner 13, and the heat exchanger 15 may be a plate-fin heat exchanger 15. The desorption fan 16 introduces the waste gas into the cold medium flow channel of the heat exchanger 15 through a pipeline, a waste gas inlet pipe 17 is connected at the cold medium outlet of the heat exchanger 15, and the waste gas can enter the furnace body 1 through the waste gas inlet pipe 17.
The NG heater 12 and the combustion fan 11 are connected with the burner 13, and the waste gas introduced into the furnace body 1 is combusted and oxidized in a low-temperature state under the catalysis of the catalyst 14 and is decomposed into carbon dioxide and water. In order that the exhaust gas can be brought into sufficient contact with the catalyst 14, the end of the exhaust gas inlet pipe 17 remote from the heat exchanger 15 is located between the burner 13 and the catalyst 14. The treated clean gas flows out of the furnace body 1 through a heat medium flow passage of the heat exchanger 15 and is introduced into a chimney 18 to be discharged to the high altitude.
In view of the above-mentioned related technologies, the inventor believes that the catalyst is located in the direction of exhaust gas flow, and the phenomenon of collapse and dislocation of some channels of the catalyst is easily caused by long-term impact of the gas flow, so that the flow channel of the exhaust gas is blocked, and the overall treatment efficiency of the catalytic oxidation process is further affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that a catalyst is impacted by airflow for a long time and is easy to block a flow channel of waste gas, the application provides a catalytic oxidation furnace convenient for long-term treatment of the waste gas.
The catalytic oxidation furnace convenient for long-acting treatment of waste gas provided by the application adopts the following technical scheme:
a catalytic oxidation furnace convenient for long-acting treatment of waste gas comprises a furnace body, a heat exchanger, a catalyst, a burner and a desorption fan, wherein the heat exchanger, the catalyst and the burner are sequentially arranged in the furnace body; still be provided with first bolster in the furnace body, first bolster is located between combustor and the catalyst, waste gas advances the pipe and keeps away from the one end and the furnace body connection of heat exchanger and is located between catalyst and the first bolster.
Through adopting above-mentioned technical scheme, waste gas enters the pipe from waste gas and forms the impact air current when just getting into the furnace body easily, and first bolster is used for buffering and breaks up the impact air current, can reduce the destruction of impact air current to the catalyst for waste gas can be gentle flow direction catalyst, thereby the condition that the circulation passageway that reduces waste gas blockked up takes place, and then is convenient for promote the holistic treatment effeciency of catalytic oxidation technology.
Optionally, the first buffer piece includes first grid board and a plurality of first buffer pieces of being connected with first grid board, first buffer piece is located one side of first grid board towards the combustor, just one side orientation that first grid board was kept away from to first buffer piece is kept away from the one side slope that waste gas advanced the pipe.
By adopting the technical scheme, the first grating plate can facilitate the circulation of waste gas, the first buffer sheet can change the flow direction of the waste gas, buffer and disperse impact airflow formed by the waste gas which just enters the furnace body, and slow down the collapse of the catalyst; the first buffer sheet can also evenly shunt waste gas, so that the waste gas can be fully contacted with a catalyst, the waste gas can be fully combusted and oxidized at a low temperature, and the treatment efficiency of the waste gas is convenient to promote.
Optionally, a second buffer member is further disposed in the furnace body, and the second buffer member is located between the catalyst and the heat exchanger.
Through adopting above-mentioned technical scheme, the second bolster is used for slowing down the impact of gas through combustion oxidation to the heat exchanger, is convenient for prolong the life of heat exchanger.
Optionally, the second bolster includes second grid plate and a plurality of second buffer pieces of being connected with the second grid plate, the second buffer piece is located one side of second grid plate towards the heat exchanger, just one side orientation that the second grid plate was kept away from to the second buffer piece is kept away from the one side slope that waste gas entered the pipe.
Through adopting above-mentioned technical scheme, the second buffer piece is used for buffering and reposition of redundant personnel through the gas of burning oxidation treatment for gaseous can be even through the hot medium passageway by the heat transfer of heat exchanger.
Optionally, a cooling box is connected to an air outlet of the furnace body, a cooling part is connected in the cooling box, the cooling part includes a grid frame and a plurality of mounting blocks, the mounting blocks are placed on the grid frame at intervals, and the mounting blocks are hollow and are communicated with each other through a pipeline; and the cooling box is externally connected with a cooling medium inlet pipe and a cooling medium outlet pipe which are respectively communicated with one mounting block.
Through adopting above-mentioned technical scheme, the grid frame can be convenient for the interval and place the installation piece, and the gas that gets into in the cooler bin can flow in the interval of installation piece to be convenient for prolong gaseous heat transfer route. And because the grid frame makes the arrangement of the high-low dislocation of the mounting block, can be convenient for the gas fully cooled. The furnace has the effect of reducing the temperature of gas just discharged from the furnace body, can reduce the occurrence of the situation that the temperature of the surrounding environment is too high, and is convenient for the construction of the surrounding ecological environment.
Optionally, one end of the cooling medium inlet pipe and one end of the cooling medium outlet pipe extending out of the cooling tank are connected with a circulating pump.
Through adopting above-mentioned technical scheme, the circulating pump is used for carrying out circulative cooling to cooling medium for the cooling medium in the installation piece can keep at suitable cooling temperature.
Optionally, the grid frame is formed by stacking a plurality of grid layers.
Through adopting above-mentioned technical scheme, the grid frame piles up through the grid layer and forms, can be more convenient for place the installation piece and connect the pipeline between the adjacent installation piece.
Optionally, the edge of the mounting block is connected with a shock pad.
By adopting the technical scheme, the damping pad is used for reducing the noise generated by collision of the grid frame and the mounting block when the gas flow is not smooth.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the first buffer piece, the situation that a flow channel of waste gas is blocked can be reduced, and the overall treatment efficiency of the catalytic oxidation process is improved;
2. through the arrangement of the second buffer piece, the impact of the gas after combustion and oxidation on the heat exchanger can be relieved, and the gas can be uniformly subjected to heat exchange through a heat medium channel of the heat exchanger;
3. through the arrangement of the grid frame and the mounting block containing the cooling medium, the cooling path of the gas in the cooling box can be prolonged, and the gas can be sufficiently cooled conveniently.
Drawings
Fig. 1 is a schematic view of the overall structure of a catalytic oxidation furnace of the related art.
Fig. 2 is a schematic view of the overall structure of the catalytic oxidation furnace of the present application.
Fig. 3 is a schematic view of the overall structure of the cooling member of the present application.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Description of reference numerals: 1. a furnace body; 11. a combustion fan; 12. an NG heater; 13. a burner; 14. a catalyst; 15. a heat exchanger; 16. a desorption fan; 17. an exhaust gas inlet pipe; 18. a chimney; 2. a first buffer member; 21. a first grid plate; 22. a first buffer sheet; 3. a second buffer member; 31. a second grid plate; 32. a second buffer sheet; 4. a cooling tank; 41. a cooling member; 42. a grid frame; 43. mounting blocks; 44. a shock pad; 45. a circulation pump; 46. a cooling medium inlet pipe; 47. and a cooling medium outlet pipe.
Detailed Description
The present application is described in further detail below with reference to figures 2-3.
The embodiment of the application discloses a catalytic oxidation furnace convenient for long-acting treatment of waste gas. Referring to fig. 2, the catalytic oxidation furnace convenient for long-term treatment of waste gas comprises a furnace body 1, a cooling tank 4 and a chimney 18 which are sequentially arranged, wherein waste gas is introduced into the furnace body 1 for low-temperature combustion, gas subjected to combustion oxidation treatment enters the cooling tank 4 through a pipeline for cooling, and the cooled gas enters the chimney 18 through a pipeline for discharging.
Referring to fig. 2, a desorption fan 16, a combustion fan 11 and an NG heater 12 are connected to the outside of the furnace body 1 through a pipeline, and a burner 13, a first buffer 2, two layers of catalysts 14, a second buffer 3 and a heat exchanger 15 are sequentially connected to the inside of the furnace body 1. The desorption fan 16 is communicated with a cooling medium inlet of the heat exchanger 15, a waste gas inlet pipe 17 is connected to a cooling medium outlet of the heat exchanger 15, and one end, far away from the heat exchanger 15, of the waste gas inlet pipe 17 is communicated with the furnace body 1 and is located between the combustor 13 and the first buffer piece 2. The combustion fan 11 and the NG heater 12 are communicated with the burner 13, so that the burner 13 emits flame, and the waste gas in the furnace body 1 is combusted and oxidized.
Referring to fig. 2, the first buffer 2 includes a first grid plate 21 and a plurality of first buffer pieces 22, one end of each first buffer piece 22 is connected to one side of the first grid plate 21 away from the catalyst 14, the other end extends below the air outlet of the exhaust gas inlet pipe 17, and one side of each first buffer piece 22 away from the first grid plate 21 is inclined toward one side away from the exhaust gas inlet pipe 17. The exhaust gas is branched while buffering the impinging stream formed by the exhaust gas, so that the exhaust gas is uniformly neutralized with the catalyst 14, facilitating low-temperature combustion of the exhaust gas.
The second buffer member 3 includes a second grid plate 31 and a plurality of second buffer pieces 32, one end of each second buffer piece 32 is connected to a side of the second grid plate 31 away from the catalyst 14, and the other end is inclined toward a side away from the exhaust gas inlet pipe 17. The second buffer sheet 32 may divide the gas subjected to the combustion oxidation treatment so that the gas may uniformly flow into the heat medium passage of the heat exchanger 15 for heat exchange.
Referring to fig. 2 and 3, the heat-exchanged gas flows into the cooling box 4 to be cooled again, and a cooling member 41 including a grid frame 42 formed by stacking grid layers and a mounting block 43 mounted in the grid frame 42 is disposed in the cooling box 4. The mounting blocks 43 are hollow and communicated with each other through a pipeline, one of the mounting blocks 43 on one side of the grid frame 42 is connected with a cooling medium inlet pipe 46, one of the mounting blocks 43 on the other side of the grid frame 42 is connected with a cooling medium outlet pipe 47, and the cooling medium inlet pipe 46 and the cooling medium outlet pipe 47 extend out of the cooling tank 4 and are connected with a circulating pump 45. The cooling liquid is introduced into the mounting block 43 through the cooling medium inlet pipe 46, and is periodically circulated by the circulation pump 45, so that the cooling liquid in the mounting block 43 can be maintained at a stable cooling temperature. The clean gas introduced into the cooling box 4 flows through the space between the mounting blocks 43, and flows out of the cooling box 4 after being sufficiently cooled.
Referring to fig. 4, when the furnace body 1 discharges gas into the cooling box 4, the grill 42 is vibrated by the impact and disturbance of the gas flow, and a shock absorbing pad 44 is connected to an edge of the mounting block 43 in order to reduce noise generated by collision between the grill 42 and the mounting block 43.
The implementation principle of the catalytic oxidation furnace convenient for long-term treatment of waste gas in the embodiment of the application is as follows: the burner 13 is burned by the combustion fan 11 and the NG heater 12, when the temperature inside the furnace body 1 is preheated to 300 ℃ to 450 ℃, specifically 300 ℃, the desorption fan 16 introduces the waste gas into the heat exchanger 15 for preheating, and then introduces the waste gas into the furnace body 1 through the waste gas inlet pipe 17.
The exhaust gas introduced into the furnace body 1 smoothly flows to the catalyst 14 under the buffering of the first buffer member 2 and is neutralized with the catalyst 14, so that combustion and oxidation can be performed at a low temperature. The oxidized gas is shunted by the second buffer member 3, and then flows into the heat medium flow passage of the heat exchanger 15 uniformly for heat exchange. The gas after the first heat exchange is introduced into the cooling tank 4 for secondary cooling, and the circulating pump 45 circulates the cooling medium at regular time. Finally, the secondary cooled gas is discharged to the atmosphere through a stack 18.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A catalytic oxidation furnace convenient for long-acting treatment of waste gas comprises a furnace body (1), a heat exchanger (15), a catalyst (14), a burner (13) and a desorption fan (16), wherein the heat exchanger (15), the catalyst (14) and the burner are sequentially arranged in the furnace body (1), the desorption fan (16) is positioned outside the furnace body (1), the desorption fan (16) is connected with a cooling medium inlet of the heat exchanger (15), and a waste gas inlet pipe (17) is connected with a cooling medium outlet of the heat exchanger (15); the method is characterized in that: still be provided with first bolster (2) in furnace body (1), first bolster (2) are located between combustor (13) and catalyst (14), waste gas advances pipe (17) and is kept away from the one end of heat exchanger (15) and be connected with furnace body (1) and be located between catalyst (14) and first bolster (2).
2. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 1, wherein: first bolster (2) include first grid board (21) and a plurality of first buffer pieces (22) of being connected with first grid board (21), first buffer piece (22) are located one side of first grid board (21) towards combustor (13), just one side orientation that first grid board (21) were kept away from in first buffer piece (22) is kept away from one side slope that waste gas advances pipe (17).
3. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 1, wherein: the furnace body (1) is also internally provided with a second buffer part (3), and the second buffer part (3) is positioned between the catalyst (14) and the heat exchanger (15).
4. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 3, wherein: second bolster (3) include second grid plate (31) and a plurality of second buffer pieces (32) of being connected with second grid plate (31), second buffer piece (32) are located one side of second grid plate (31) towards heat exchanger (15), just one side orientation that second grid plate (31) were kept away from in second buffer piece (32) is kept away from waste gas and is advanced one side slope of pipe (17).
5. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 1, wherein: a cooling box (4) is connected to an air outlet of the furnace body (1), a cooling piece (41) is connected in the cooling box (4), the cooling piece (41) comprises a grid frame (42) and a plurality of mounting blocks (43), the mounting blocks (43) are arranged on the grid frame (42) at intervals, and the mounting blocks (43) are hollow and are communicated with each other through a pipeline; the cooling box (4) is externally connected with a cooling medium inlet pipe (46) and a cooling medium outlet pipe (47), and the cooling medium inlet pipe (46) and the cooling medium outlet pipe (47) are respectively communicated with one mounting block (43).
6. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 5, wherein: and one ends of the cooling medium inlet pipe (46) and the cooling medium outlet pipe (47) extending out of the cooling tank (4) are connected with a circulating pump (45).
7. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 5, wherein: the grid frame (42) is formed by stacking a plurality of grid layers.
8. A catalytic oxidation furnace for facilitating long term treatment of exhaust gases as claimed in claim 5, wherein: the edge of the mounting block (43) is connected with a shock pad (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022151245.8U CN213272657U (en) | 2020-09-25 | 2020-09-25 | Catalytic oxidation furnace convenient to long-term treatment waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022151245.8U CN213272657U (en) | 2020-09-25 | 2020-09-25 | Catalytic oxidation furnace convenient to long-term treatment waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213272657U true CN213272657U (en) | 2021-05-25 |
Family
ID=75947146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022151245.8U Active CN213272657U (en) | 2020-09-25 | 2020-09-25 | Catalytic oxidation furnace convenient to long-term treatment waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213272657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803732A (en) * | 2021-10-12 | 2021-12-17 | 上海市计量测试技术研究院 | Heat accumulating type catalytic combustion waste gas treatment device and treatment method thereof |
| CN116603361A (en) * | 2023-07-21 | 2023-08-18 | 天津市英格环保科技有限公司 | Waste gas treatment device for traditional Chinese medicine processing |
-
2020
- 2020-09-25 CN CN202022151245.8U patent/CN213272657U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803732A (en) * | 2021-10-12 | 2021-12-17 | 上海市计量测试技术研究院 | Heat accumulating type catalytic combustion waste gas treatment device and treatment method thereof |
| CN113803732B (en) * | 2021-10-12 | 2023-09-26 | 上海市计量测试技术研究院 | Heat accumulating type catalytic combustion waste gas treatment device and treatment method thereof |
| CN116603361A (en) * | 2023-07-21 | 2023-08-18 | 天津市英格环保科技有限公司 | Waste gas treatment device for traditional Chinese medicine processing |
| CN116603361B (en) * | 2023-07-21 | 2023-09-26 | 天津市英格环保科技有限公司 | Waste gas treatment device for traditional Chinese medicine processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213272657U (en) | Catalytic oxidation furnace convenient to long-term treatment waste gas | |
| CN105771638B (en) | Utilize the desulfurization denitration method and device of the hot standby coke oven chimney of coke oven flue gas | |
| CN103657404A (en) | Tail gas catalysis combustion treatment system | |
| CN216171293U (en) | Low-temperature desulfurization and denitrification system for flue gas of coking plant | |
| CN113731161B (en) | Low-temperature desulfurization and denitrification method and system for flue gas of coking plant | |
| CN110484283B (en) | Comprehensive recovery process and system for coking waste heat | |
| CN113769551B (en) | Low-temperature desulfurization and denitrification method and system for biomass power plant flue gas | |
| CN110925775A (en) | Comprehensive treatment box for waste incineration flue gas | |
| CN110274253B (en) | Heat accumulating type catalytic oxidation furnace adopting heat accumulator | |
| CN211084093U (en) | Heat accumulating type waste gas incinerator | |
| CN217031243U (en) | Energy-saving emission-reducing boiler waste gas waste heat recycling device | |
| CN110608445A (en) | Heat accumulating type waste gas incinerator | |
| CN111804138A (en) | Biomass boiler flue gas denitration system and application process thereof | |
| CN108421383B (en) | Steel pickling waste gas defluorination and denitration device and operation method thereof | |
| CN216537812U (en) | Low-temperature desulfurization and denitrification system for flue gas of biomass power plant | |
| CN209763106U (en) | Organic waste gas integration RTO ceramic regenerative thermal oxidizer | |
| CN214287485U (en) | Calcium-carbon method flue gas desulfurization and denitrification device | |
| CN210855981U (en) | Dry quenching coke and coke oven flue gas combined purification system | |
| KR101166476B1 (en) | A system for controlling exhaust gas | |
| CN214275766U (en) | RTO furnace convenient to gaseous denitration treatment after burning | |
| CN205832967U (en) | Utilize the desulfuring and denitrifying apparatus of coke oven flue gas hot standby coke oven chimney | |
| CN110940196A (en) | Electric furnace flue gas waste heat utilization system and method | |
| CN110793341A (en) | Electric furnace flue gas purification and waste heat utilization system and method | |
| CN217809279U (en) | Safe processing apparatus of gas heat accumulation catalytic oxidation | |
| CN220951648U (en) | Coupling recycling gas system of heat recovery coke oven and dry quenching coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |