CN211781142U - Waste gas treatment device of heat treatment furnace - Google Patents
Waste gas treatment device of heat treatment furnace Download PDFInfo
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- CN211781142U CN211781142U CN201922263936.4U CN201922263936U CN211781142U CN 211781142 U CN211781142 U CN 211781142U CN 201922263936 U CN201922263936 U CN 201922263936U CN 211781142 U CN211781142 U CN 211781142U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a heat treating furnace's exhaust treatment device, including waste gas burning furnace and the exhaust emission pipeline that links to each other with heat treating furnace, waste gas burning furnace is equipped with oxygen boosting combustor and natural gas burner, and oxygen boosting combustor is connected with the combustion-supporting gas supply assembly who is used for letting in combustion-supporting gas, and natural gas burner is connected with the natural gas supply assembly who is used for letting in natural gas, and the exhaust emission pipeline links to each other with oxygen boosting combustor. The utility model has the advantages of low energy consumption, low cost, high flexibility and wide application range.
Description
Technical Field
The utility model relates to a heat treatment device technical field, concretely relates to waste gas treatment device of heat treatment furnace.
Background
The oxygen content of materials such as graphite and silicon-carbon cathode materials is high during sintering and other heat treatment, and the materials need to be carried out in a protective atmosphere. The material can discharge combustible substances during the heat treatment process in a heat treatment furnace (comprising a roller kiln, a pushed slab kiln, a bell jar furnace, a rotary furnace and the like), and the main components of the material comprise CO and CO2The existing treatment method of the discharged waste gas mainly adopts natural gas incineration to burn or decompose the waste gas. However, combustion of natural gas requires a large amount of oxygen for combustion, and pyrolysis and combustion of exhaust gas also require a large amount of oxygen consumption. Due to the existence of the protective gas in the waste gas, the concentration of combustible gas in the waste gas is low, if air is directly adopted for combustion supporting, the combustion temperature cannot meet the requirement, and even flame extinguishment is caused; if natural gas is adopted for heating, a large amount of energy is consumed, and the design concept of energy conservation and environmental protection is not met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the deficiencies in the prior art and provide a waste gas treatment device of a heat treatment furnace with low energy consumption, low cost, high flexibility and wide application range.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the waste gas incinerator is provided with an oxygen-enriched combustor and a natural gas combustor, the oxygen-enriched combustor is connected with a combustion-supporting gas supply assembly used for introducing combustion-supporting gas, the natural gas combustor is connected with a natural gas supply assembly used for introducing natural gas, and the tail gas discharge pipeline is connected with the oxygen-enriched combustor.
As a further improvement of the above technical solution:
the combustion-supporting gas supply assembly comprises an oxygen supply pipe and an air supply pipe, the oxygen supply pipe and the air supply pipe are connected to an oxygen-enriched emitter capable of adjusting the mixing ratio of oxygen and air, and an output port of the oxygen-enriched emitter is connected with the oxygen-enriched combustor.
The oxycombustion ware includes combustor body and is used for carrying out the lighter that ignites to the waste gas burning.
And a flame monitor for monitoring whether the oxygen-enriched combustor is ignited successfully is arranged on the waste gas incinerator.
The combustion-supporting gas supply assembly comprises a natural gas supply pipe connected with the natural gas burner and a combustion-supporting air supply pipe connected with the natural gas burner.
And a thermocouple for monitoring the temperature in the waste gas incinerator is arranged on the waste gas incinerator.
The heat treatment furnace is a roller-way resistance furnace.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a when heat treatment furnace's exhaust treatment device carries out exhaust-gas treatment, the tail gas that heat treatment furnace discharged lets in the oxygen boosting combustor through the exhaust emission pipeline, supplies with the subassembly by combustion-supporting gas and lets in combustion-supporting gas to the oxygen boosting combustor, makes waste gas take place the oxygen boosting burning, when the unable normal work of oxygen boosting combustor or the unable satisfying requirement of exhaust gas incinerator in the temperature, can supply with the subassembly by the natural gas and let in the natural gas to the natural gas combustor, start the natural gas combustor and burn. The device can be flexibly adjusted according to the actual combustion condition, the temperature in the furnace is met, the waste gas is fully combusted and decomposed, the using amount of natural gas can be greatly reduced, and the energy consumption and the cost are reduced. Meanwhile, higher furnace temperature requirement can be provided, waste gas with higher combustion temperature requirement can be treated, and reduction of the flue gas amount after combustion and reduction of the volume of the waste gas incinerator are facilitated.
The waste gas treatment device is particularly suitable for treating the heat treatment tail gas of carbon-coated graphite cathode materials containing asphalt, tar and the like or silicon-carbon cathode materials and the like, and the tail gas of a heat treatment furnace which needs to carry out atmosphere protection on heat treatment products and volatilizes combustible substances.
Drawings
Fig. 1 is a schematic structural view of an exhaust gas treatment device.
Illustration of the drawings:
1. an exhaust gas incinerator; 2. a tail gas discharge pipeline; 3. an oxygen-enriched combustor; 31. a lighter; 4. a natural gas burner; 5. an oxygen supply tube; 6. an air supply pipe; 7. an oxygen-enriched emitter; 8. a flame monitor; 9. a natural gas supply pipe; 10. a combustion air supply pipe; 11. and a thermocouple.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1, the exhaust gas treatment device of the heat treatment furnace of the present embodiment includes an exhaust gas incinerator 1 and an exhaust gas discharge pipeline 2 connected to the heat treatment furnace, the exhaust gas incinerator 1 is provided with an oxygen-enriched burner 3 and a natural gas burner 4, the oxygen-enriched burner 3 is connected to a combustion-supporting gas supply assembly for introducing combustion-supporting gas, the natural gas burner 4 is connected to a natural gas supply assembly for introducing natural gas, and the exhaust gas discharge pipeline 2 is connected to the oxygen-enriched burner 3. This heat treatment furnace's exhaust treatment device carries out exhaust treatment, the tail gas that heat treatment furnace discharged lets in oxygen-enriched burner 3 through exhaust emission pipeline 2, let in combustion-supporting gas to oxygen-enriched burner 3 by combustion-supporting gas supply assembly, make waste gas take place the oxygen boosting burning, when unable normal work of oxygen-enriched burner 3 or temperature can't satisfy the demands in the waste gas burns burning furnace 1, can let in the natural gas by natural gas supply assembly to natural gas burner 4, start natural gas burner 4 and burn. The device can be flexibly adjusted according to the actual combustion condition, the temperature in the furnace is met, the waste gas is fully combusted and decomposed, the using amount of natural gas can be greatly reduced, and the energy consumption and the cost are reduced. Meanwhile, higher furnace temperature requirement can be provided, waste gas with higher combustion temperature requirement can be treated, and reduction of the flue gas amount after combustion and reduction of the volume of the waste gas incinerator 1 are facilitated.
In this embodiment, the combustion supporting gas supply assembly comprises an oxygen supply pipe 5 and an air supply pipe 6, the oxygen supply pipe 5 and the air supply pipe 6 are connected to an oxygen-enriched emitter 7 capable of adjusting the mixing ratio of oxygen and air, and the output port of the oxygen-enriched emitter 7 is connected to the oxygen-enriched burner 3. The oxygen supplied by the oxygen supply pipe 5 and the air supplied by the air supply pipe 6 are introduced into the oxygen enrichment emitter 7, and the oxygen enrichment emitter 7 adjusts the mixing ratio of the oxygen and the air and inputs the mixture into the oxygen enrichment burner 3. The combustion-supporting gas supply assembly can flexibly adjust the oxygen content of the combustion-supporting gas as required, meets different combustion requirements, and can avoid the waste of oxygen. The oxygen-enriched emitter 7 is in the prior art, and can adjust the proportion of oxygen and air to obtain oxygen-enriched combustion-supporting gas with the oxygen content of 20-100%.
In the present embodiment, the oxycombustion burner 3 includes a burner body and an igniter 31 for igniting the combustion of the exhaust gas.
In this embodiment, the exhaust gas incinerator 1 is provided with the flame monitor 8 for monitoring whether the oxygen-enriched burner 3 is ignited successfully, so that the working condition of the oxygen-enriched burner 3 can be known and monitored in real time.
In this embodiment, the combustion supporting gas supply assembly includes a natural gas supply pipe 9 connected to the natural gas burner 4 and a combustion supporting air supply pipe 10 connected to the natural gas burner 4. The natural gas supplied from the natural gas supply pipe 9 and the air supplied from the combustion air supply pipe 10 are mixed and burned in the natural gas combustor 4.
In this embodiment, the thermocouple 11 for monitoring the temperature in the exhaust gas incinerator 1 is installed on the exhaust gas incinerator 1, so as to facilitate real-time understanding and monitoring of the temperature in the exhaust gas incinerator 1.
In this embodiment, the heat treatment furnace is a roller-type resistance furnace.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a heat treatment furnace's exhaust treatment device, includes waste gas incinerator (1) and tail gas discharge pipeline (2) that link to each other with heat treatment furnace, its characterized in that: the waste gas incinerator (1) is provided with an oxygen-enriched combustor (3) and a natural gas combustor (4), the oxygen-enriched combustor (3) is connected with a combustion-supporting gas supply assembly for introducing combustion-supporting gas, the natural gas combustor (4) is connected with a natural gas supply assembly for introducing natural gas, and a tail gas discharge pipeline (2) is connected with the oxygen-enriched combustor (3).
2. The exhaust gas treatment device according to claim 1, characterized in that: the combustion-supporting gas supply assembly comprises an oxygen supply pipe (5) and an air supply pipe (6), the oxygen supply pipe (5) and the air supply pipe (6) are connected to an oxygen-enriched emitter (7) capable of adjusting the mixing ratio of oxygen and air, and the output port of the oxygen-enriched emitter (7) is connected with the oxygen-enriched burner (3).
3. The exhaust gas treatment device according to claim 2, characterized in that: the oxycombustion device (3) comprises a burner body and a lighter (31) for igniting the combustion of the exhaust gas.
4. The exhaust gas treatment device according to claim 3, characterized in that: and a flame monitor (8) for monitoring whether the oxygen-enriched combustor (3) is ignited successfully is arranged on the waste gas incinerator (1).
5. The exhaust gas treatment device according to claim 1, characterized in that: the combustion-supporting gas supply assembly comprises a natural gas supply pipe (9) connected with the natural gas burner (4) and a combustion-supporting air supply pipe (10) connected with the natural gas burner (4).
6. The exhaust gas treatment device according to any one of claims 1 to 5, characterized in that: and a thermocouple (11) for monitoring the temperature in the waste gas incinerator (1) is arranged on the waste gas incinerator (1).
7. The exhaust gas treatment device according to any one of claims 1 to 5, characterized in that: the heat treatment furnace is a roller-way resistance furnace.
8. The exhaust gas treatment device according to claim 6, characterized in that: the heat treatment furnace is a roller-way resistance furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263936.4U CN211781142U (en) | 2019-12-17 | 2019-12-17 | Waste gas treatment device of heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263936.4U CN211781142U (en) | 2019-12-17 | 2019-12-17 | Waste gas treatment device of heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211781142U true CN211781142U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922263936.4U Active CN211781142U (en) | 2019-12-17 | 2019-12-17 | Waste gas treatment device of heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211781142U (en) |
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2019
- 2019-12-17 CN CN201922263936.4U patent/CN211781142U/en active Active
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