CN212378479U - Protective gas cooling and recycling system of atmosphere protection sintering furnace - Google Patents
Protective gas cooling and recycling system of atmosphere protection sintering furnace Download PDFInfo
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- CN212378479U CN212378479U CN202020851945.5U CN202020851945U CN212378479U CN 212378479 U CN212378479 U CN 212378479U CN 202020851945 U CN202020851945 U CN 202020851945U CN 212378479 U CN212378479 U CN 212378479U
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Abstract
The utility model relates to a protective gas cooling system especially relates to a protective gas cooling cycle of atmosphere protection fritting furnace utilizes system. The sintering furnace comprises a sintering furnace body, the sintering furnace body is divided into a plurality of sections of cooling sections from high temperature to low temperature, at least two sections of the high temperature cooling sections are connected with gas circulation outflow branch pipes, at least two sections of the low temperature cooling sections are connected with all gas circulation outflow branch pipes of the gas circulation inflow branch pipes and flow into a gas circulation main pipe, a heat exchanger and a circulating fan are sequentially arranged on the gas circulation main pipe, and the gas circulation main pipe is divided into the gas circulation inflow branch pipes. The utility model realizes the cyclic and repeated utilization of the protective gas in the furnace, and saves a large amount of resources; the cooling efficiency of the cooling section is improved to a great extent, and the equipment cost is reduced; the heat generated in the heat exchange process can be applied to other places, and the utilization efficiency of energy is improved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a protective gas cooling system especially relates to a protective gas cooling cycle of atmosphere protection fritting furnace utilizes system.
[ background of the invention ]
In recent years, the development and application of new energy sources are faster and faster, and lithium ion batteries also enter a rapid development stage. The production of the lithium ion battery material is mainly finished by high-temperature sintering under the protection of atmosphere, the production process has quite high requirements on temperature and atmosphere, a large amount of resources are consumed in the high-temperature environment and the protective atmosphere, and how to improve the utilization efficiency is a big subject of the lithium battery material production industry.
In a conventional production flow, a lithium battery material enters a cooling stage after being sintered through high-temperature reaction. An indirect cooling mode is generally adopted, and mainly comprises jacket structure air cooling and water cooling. In order to ensure the atmosphere in the furnace in the cooling process, a small amount of protective gas (nitrogen/oxygen) can be continuously introduced, and a certain cooling effect can be achieved. Because the internal pressure of the kiln is micro-positive pressure, the gas fluidity is very poor, and the effect of the indirect cooling mode is not good enough.
[ summary of the invention ]
The utility model aims at solving the above problem and providing a protective gas cooling cyclic utilization system of atmosphere protection fritting furnace that can realize in the stove protective gas's cyclic recycle, improve fritting furnace cooling zone cooling efficiency, reduce energy loss.
In order to realize the above object, the utility model discloses a protective gas cooling cycle of atmosphere protection fritting furnace utilizes system, including fritting furnace body 10, fritting furnace body 10 divide into a plurality of sections from higher temperature to lower cryogenic cooling zone, higher temperature cooling zone's at least two sections all are connected with gas circulation outflow branch pipe 20, lower temperature cooling zone's at least two sections all are connected with gas circulation inflow branch pipe 70, all gas circulation outflow branch pipes 20 converge into in the gas circulation house steward 30, be provided with on the gas circulation house steward 30 in proper order have heat exchanger 40 and circulating fan 50, gas circulation house steward 30 reposition of redundant personnel goes into gas circulation inflow branch pipe 70.
Furthermore, any gas circulation outflow branch pipe 20 is provided with an outflow valve 21 which can be controlled to open and close, and any gas circulation inflow branch pipe 70 is provided with an inflow valve 22 which can be controlled to open and close.
Further, the gas circulation manifold 30 is further provided with a filter 60, and the filter 60 is disposed after the heat exchanger 40 and before or after the circulation fan 50.
The utility model provides a contribution provides a protective gas cooling cyclic utilization system of atmosphere protection fritting furnace. Under the effect of the circulating fan, high-temperature gas in the cooling front section area is pumped out from the furnace and then directly enters the heat exchanger, gas after heat exchange and temperature reduction is completed enters the circulating fan, then the gas is sent into the filter, and the filtered protective gas enters the cooling rear section in the furnace again to complete the dual effects of atmosphere protection and product cooling. The utility model discloses a system squeezes into the stove again after the high temperature protective gas heat transfer cooling in the atmosphere sintering stove and utilizes, has following advantage:
1. the cyclic recycling of the protective gas in the furnace is realized, and a large amount of resources are saved;
2. the cooling efficiency of the cooling section is improved to a great extent, and the equipment cost is reduced;
3. the heat generated in the heat exchange process can be applied to other places, and the utilization efficiency of energy is improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the present invention.
[ detailed description ] embodiments
The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.
Example 1
As shown in fig. 1, the protective gas cooling and recycling system of the atmosphere protection sintering furnace of the present embodiment includes a sintering furnace body 10, the sintering furnace body 10 is divided into a plurality of cooling sections from a higher temperature to a lower temperature, at least two sections of the higher temperature cooling section are connected to a gas circulation outflow branch pipe 20, at least two sections of the lower temperature cooling section are connected to a gas circulation inflow branch pipe 70, all the gas circulation outflow branch pipes 20 converge into a gas circulation main pipe 30, the gas circulation main pipe 30 is provided with a heat exchanger 40 and a circulating fan 50 in sequence, and the gas circulation main pipe 30 branches into the gas circulation inflow branch pipe 70.
Because the internal pressure of the sintering furnace body 10 is micro-positive pressure, the gas fluidity is very poor, and if the gas in the sintering furnace body 10 is cooled by adopting a traditional method, the effect of an indirect cooling method is not good enough. In this embodiment, the gas circulation outflow branch pipes 20 are connected to at least two sections of the higher temperature cooling section, the gas circulation inflow branch pipes 70 are connected to at least two sections of the lower temperature cooling section, the gas circulation outflow branch pipes 20 converge into the gas circulation main pipe 30, the gas circulation main pipe 30 branches into the gas circulation inflow branch pipes 70, the gas circulation main pipe 30 is provided with the circulating fan 50, the circulating fan 50 solves the problem that the internal pressure of the sintering furnace body 10 is micro-positive pressure and the gas flowability is very poor, through the effect of the circulating fan 50, the gas in the higher temperature cooling section is extracted and is injected into the lower temperature cooling section again after the heat is exchanged by the heat exchanger 40, and the dual effects of atmosphere protection and product cooling are achieved. The protective gas recycling system of the atmosphere protection sintering furnace realizes recycling of the protective gas in the sintering furnace, and saves a large amount of resources; the cooling efficiency of the cooling section is improved to a great extent, and the equipment cost is reduced; the heat generated in the heat exchange process can be applied to other places, and the utilization efficiency of energy is improved.
Example 2
As shown in fig. 1, in this embodiment, an outlet valve 21 is provided on any of the gas circulation outlet branch pipes 20, and an inlet valve 22 is provided on any of the gas circulation inlet branch pipes 70. The structure can conveniently control gas to flow out of which higher-temperature cooling section and flow into which lower-temperature cooling section, and is convenient to control.
Example 3
As shown in fig. 1, in the present embodiment, a filter 60 is further disposed on the gas circulation manifold 30, and the filter 60 is disposed after the heat exchanger 40, before or after the circulation fan 50. The filter 60 completes the filtration of the gas impurities extracted from the sintering furnace. The impurities may be filtered before passing through the circulation fan 50, or may be filtered after passing through the circulation fan 50.
Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.
Claims (3)
1. The utility model provides a protective gas cooling cyclic utilization system of atmosphere protection fritting furnace, includes fritting furnace body (10), its characterized in that: the sintering furnace body (10) is divided into a plurality of sections of cooling sections from high temperature to low temperature, at least two sections of the high temperature cooling sections are connected with gas circulation outflow branch pipes (20), at least two sections of the low temperature cooling sections are connected with gas circulation inflow branch pipes (70), all the gas circulation outflow branch pipes (20) converge into a gas circulation main pipe (30), the gas circulation main pipe (30) is provided with a heat exchanger (40) and a circulating fan (50) in sequence, and the gas circulation main pipe (30) divides into the gas circulation inflow branch pipes (70).
2. The system of claim 1, wherein the protective gas cooling and recycling system comprises: any gas circulation outflow branch pipe (20) is provided with an outflow valve (21) which can be controlled to open and close, and any gas circulation inflow branch pipe (70) is provided with an inflow valve (22) which can be controlled to open and close.
3. The protective gas cooling and recycling system of an atmosphere protection sintering furnace according to claim 2, wherein: the gas circulation main pipe (30) is also provided with a filter (60), and the filter (60) is arranged behind the heat exchanger (40) and in front of or behind the circulating fan (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020851945.5U CN212378479U (en) | 2020-05-20 | 2020-05-20 | Protective gas cooling and recycling system of atmosphere protection sintering furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020851945.5U CN212378479U (en) | 2020-05-20 | 2020-05-20 | Protective gas cooling and recycling system of atmosphere protection sintering furnace |
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| CN212378479U true CN212378479U (en) | 2021-01-19 |
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| CN202020851945.5U Active CN212378479U (en) | 2020-05-20 | 2020-05-20 | Protective gas cooling and recycling system of atmosphere protection sintering furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499689A (en) * | 2021-08-24 | 2021-10-15 | 上海言征分离技术有限公司 | Large-flux membrane filtering device |
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2020
- 2020-05-20 CN CN202020851945.5U patent/CN212378479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499689A (en) * | 2021-08-24 | 2021-10-15 | 上海言征分离技术有限公司 | Large-flux membrane filtering device |
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