Heat pipe bell jar type sintering annealing device

Abstract

The utility model relates to the field of sintering annealing devices, in particular to a heat pipe bell jar type sintering annealing device. The sintering and annealing device aims at solving the technical problems that in the prior art, uniform distribution of heat cannot be guaranteed, and meanwhile protective gas used for sintering is high in cost. The utility model discloses a heat pipe bell jar type sintering annealing device which comprises a heat pipe bell jar type sintering furnace, a treatment chamber and a temperature treatment assembly. According to the bell-jar type sintering annealing device for the heat pipe, the temperature processing assembly repeatedly moves forwards and backwards, the fan is arranged in the center, flowing of air in a furnace can be promoted, heat distribution can be improved, the scrapers moving up and down on the two sides can remove scale deposited on the furnace wall, the heat conduction performance of the inner wall is kept, the temperature in the furnace is made to be uniform, and the service life of the furnace is prolonged. It is very important to guarantee the sintering quality and reduce material deformation, used gas is stored and purified through the gas treatment assembly and then fed into the furnace again to be recycled, so that recycling of protective gas is achieved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sintering annealing devices, in particular to a heat pipe bell-type sintering annealing device. Background Art

[0002] The heat pipe bell-type sintering annealing device is an advanced material heat treatment equipment, which is mainly used for high-temperature sintering annealing of heat shrinkable tubes. The existing bell-type sintering annealing device adopts heat pipe technology, which is mainly composed of a bell-type structure furnace body, a heat pipe heater, and a control system.

[0003] However, the existing bell-type sintering annealing device has a relatively centralized design of heating tubes, which cannot ensure uniform heat distribution and is prone to local overheating or overcooling, resulting in material deformation. At the same time, during the high-temperature sintering process, nitrogen and hydrogen are required for protection to keep the annealed material surface bright and free of oxidation. The production cost is high and it is not environmentally friendly. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a heat pipe bell-type sintering annealing device, which aims to solve the technical problems that the prior art cannot ensure uniform heat distribution and the protective gas used for sintering is costly.

[0005] The technical scheme of the utility model is: a heat pipe bell-shaped sintering annealing device, comprising a heat pipe bell-shaped sintering furnace, a processing chamber, a temperature processing component, a gas processing component, and a material inlet; a processing chamber for placing materials for sintering annealing processing is arranged at the right end of the heat pipe bell-shaped sintering furnace; a temperature processing component for ensuring uniform temperature in the furnace is installed inside the processing chamber; a gas processing component for recycling protective gas is installed at the upper end of the processing chamber; and a material inlet is arranged at the front end of the processing chamber.

[0006] Preferably, in the first step, the heat shrink tube raw material plate is pushed into the processing chamber on the side of the heat pipe bell-shaped sintering furnace from the material inlet, the sealed furnace door is closed, and the temperature in the furnace is precisely controlled and the pressure is adjusted through the control system, and the heat shrink tube is sintered under a high temperature environment, and the heat shrink tube is always protected by high-purity nitrogen and hydrogen gas during the heating, heat preservation and cooling process, so that the annealed material keeps the surface bright and non-oxidized; in the second step, at the same time, the temperature treatment component is started, and the temperature treatment component is provided with a fan at the center through repeated forward and reverse movements, which can promote the flow of air in the furnace and improve the distribution of heat, and the scrapers moving up and down on both sides can remove the fouling of the furnace wall to maintain the thermal conductivity of the inner wall, so that the temperature uniformity in the furnace is very important for ensuring the sintering quality and reducing the deformation of the material; in the third step, after the sintering is completed, the gas treatment component will store and purify the used gas, remove the pollutants and moisture in the gas, and send it into the furnace for recycling again, so as to realize the recycling of the protective gas and reduce the production cost.

[0007] Preferably, the temperature treatment component includes a driving motor, a first active transmission member, a driven transmission member, a fan, a threaded rod, a movable sleeve and a scraper; the first active transmission member is installed at the lower end of the driving motor output shaft; the left and right ends of the first active transmission member are connected to the driven transmission member through a belt linkage; when the driving motor is started, it drives the first active transmission member at the lower end and the driven transmission members on both sides to perform repeated forward and reverse movements.

[0008] Preferably, a fan for promoting the flow of air in the furnace and improving heat distribution is installed at the lower end of the output shaft of the first active transmission member; a fan is arranged at the center to promote the flow of air in the furnace and improve heat distribution.

[0009] Preferably, a threaded rod is installed at the lower end of the driven transmission member output; a movable sleeve is connected to the outer side of the threaded rod for transmission; a scraper is fixedly connected to the outer side of the movable sleeve for removing scale from the furnace wall and maintaining the thermal conductivity of the inner wall; the threaded rods on both sides drive the movable sleeve and the scraper connected to the outer side to move up and down, and the scraper can remove scale from the furnace wall and maintain the thermal conductivity of the inner wall, thereby ensuring the uniformity of the temperature in the furnace.

[0010] Preferably, the gas processing assembly includes an input pipe, a processing box, an output pipe, a first chamber, a second chamber, a multi-layer filtering structure, a cooling device and a moisture separator; an input pipe is arranged on the rear side of the lower end of the processing box; an output pipe is arranged on the front side of the lower end of the processing box; and an air guide structure on the inner side of the input pipe inputs the used gas into the processing box.

[0011] Preferably, a first chamber and a second chamber are respectively provided inside the processing box; a multi-layer filter structure is installed inside the first chamber; and pollutants in the protective gas are removed through the multi-layer filter structure of the first chamber.

[0012] Preferably, a cooling device and a moisture separator are installed inside the second chamber; then the moisture in the protective gas is cooled and separated through the cooling device and the moisture separator in the second chamber, thereby improving the quality and applicability of the gas.

[0013] Beneficial effects of the utility model:

[0014] Compared with the traditional heat pipe bell-type sintering annealing device, the heat pipe bell-type sintering annealing device of the utility model repeatedly moves forward and backward through the temperature treatment component, and a fan is arranged at the center to promote the flow of air in the furnace and improve the heat distribution. The scrapers moving up and down on both sides can remove the scale on the furnace wall and maintain the thermal conductivity of the inner wall, so that the temperature in the furnace is uniform, which is very important for ensuring the sintering quality and reducing material deformation. The used gas is stored and purified through the gas treatment component to remove pollutants and moisture in the gas, and then sent back into the furnace for recycling, so as to realize the recycling of protective gas and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a three-dimensional structural schematic diagram of the sintering annealing device of the utility model;

[0016] Figure 2 What is shown is a schematic diagram of the cross-sectional structure of the sintering annealing device of the utility model;

[0017] Figure 3 The three-dimensional structure diagram of the temperature treatment component of the sintering annealing device of the present invention is shown;

[0018] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of the gas treatment component of the sintering annealing device of the present invention.

[0019] Explanation of the reference numerals: 1. heat pipe bell-type sintering furnace; 2. treatment chamber; 3. temperature treatment component; 301. driving motor; 302. first active transmission member; 303. driven transmission member; 304. fan; 305. threaded rod; 306. movable sleeve; 307. scraper; 4. gas treatment component; 401. input pipeline; 402. treatment box; 403. output pipeline; 404. first chamber; 405. second chamber; 406. multi-layer filtering structure; 407. cooling device; 408. moisture separator; 5. material inlet. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-2The utility model provides an embodiment: a heat pipe bell-shaped sintering annealing device, comprising a heat pipe bell-shaped sintering furnace 1, a processing chamber 2, a temperature processing component 3, a gas processing component 4, and a material inlet 5; a processing chamber 2 for placing materials for sintering annealing treatment is arranged at the right end of the heat pipe bell-shaped sintering furnace 1; a temperature processing component 3 for ensuring uniform temperature in the furnace is installed inside the processing chamber 2; a gas processing component 4 for recycling protective gas is installed at the upper end of the processing chamber 2; a material inlet 5 is arranged at the front end of the processing chamber 2.

[0022] See also Figure 3 In this embodiment, the temperature treatment component 3 includes a driving motor 301, a first active transmission member 302, a driven transmission member 303, a fan 304, a threaded rod 305, a movable sleeve 306 and a scraper 307; the first active transmission member 302 is installed at the lower end of the output shaft of the driving motor 301; the left and right ends of the first active transmission member 302 are connected to the driven transmission member 303 through a belt linkage; when the driving motor 301 is started, the first active transmission member 302 at the lower end and the driven transmission members 303 on both sides are driven to perform repeated forward and reverse movements, and the lower end of the output shaft of the first active transmission member 302 is installed with a belt for promoting the air in the furnace. The fan 304 improves the heat distribution by promoting the flow of air in the furnace; a fan 304 is arranged at the center to promote the flow of air in the furnace and improve the heat distribution, a threaded rod 305 is installed at the lower end of the output of the driven transmission member 303; a movable sleeve 306 is connected to the outer side of the threaded rod 305 in a transmission manner; a scraper 307 for removing the scale on the furnace wall and maintaining the thermal conductivity of the inner wall is fixedly connected to the outer side of the movable sleeve 306; the threaded rods 305 on both sides drive the movable sleeve 306 and the scraper 307 connected to the outer side to move up and down, and the scraper 307 can remove the scale on the furnace wall and maintain the thermal conductivity of the inner wall, so that the temperature in the furnace is uniform.

[0023] See also Figure 4 In this embodiment, the gas processing assembly 4 includes an input pipeline 401, a processing box 402, an output pipeline 403, a first chamber 404, a second chamber 405, a multi-layer filtering structure 406, a cooling device 407 and a moisture separator 408; the input pipeline 401 is arranged at the rear side of the lower end of the processing box 402; the output pipeline 403 is arranged at the front side of the lower end of the processing box 402; the air guide structure inside the input pipeline 401 inputs the used gas into the processing box 402, and the first chamber 404 and the second chamber 405 are respectively arranged inside the processing box 402; the multi-layer filtering structure 406 is installed inside the first chamber 404; the pollutants in the protective gas are removed through the multi-layer filtering structure 406 of the first chamber 404, and the cooling device 407 and the moisture separator 408 are installed inside the second chamber 405; then the moisture in the protective gas is cooled and separated through the cooling device 407 and the moisture separator 408 of the second chamber 405, so as to improve the quality and applicability of the gas.

[0024] When working, the first step is to push the heat shrink tube raw material plate from the material inlet 5 into the processing chamber 2 on the side of the heat pipe bell-shaped sintering furnace 1, close the sealed furnace door, and use the control system to achieve precise control of the temperature and pressure regulation in the furnace, and sinter the heat shrink tube in a high temperature environment. During the heating, insulation and cooling process, it is always protected by high-purity nitrogen and hydrogen gases, so that the annealed material keeps the surface bright and free of oxidation;

[0025] The second step, at the same time, start the temperature treatment component 3. When the driving motor 301 is started, it drives the first active transmission member 302 at the lower end and the driven transmission members 303 on both sides to perform repeated forward and reverse movements. A fan 304 is arranged at the center to promote the flow of air in the furnace and improve the heat distribution. The threaded rods 305 on both sides drive the outer transmission connection movable sleeve 306 and the scraper 307 to move up and down. The scraper 307 can remove the scale on the furnace wall and maintain the thermal conductivity of the inner wall, which is very important for ensuring the sintering quality and reducing material deformation.

[0026] In the third step, after sintering, the input pipe 401 of the gas processing component 4 inputs the used gas into the processing box 402 through the air guide structure, passes through the multi-layer filtering structure 406 of the first chamber 404, removes pollutants in the protective gas, and then passes through the cooling device 407 and the moisture separator 408 of the second chamber 405 to cool and separate the moisture in the protective gas, thereby improving the quality and applicability of the gas, and then sends it into the furnace for recycling again, so as to realize the recycling of the protective gas and reduce production costs.

[0027] Through the above steps, the temperature treatment component 3 repeatedly moves forward and backward, and a fan 304 is set at the center to promote the flow of air in the furnace and improve the distribution of heat. The scrapers 307 moving up and down on both sides can remove the scale on the furnace wall and maintain the thermal conductivity of the inner wall, so that the temperature in the furnace is uniform, which is very important for ensuring the sintering quality and reducing material deformation. The used gas is stored and purified by the gas treatment component 4 to remove pollutants and moisture in the gas, and then sent back to the furnace for recycling, so as to achieve the recycling of protective gas and reduce production costs.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A heat pipe bell-shaped sintering annealing device, comprising a heat pipe bell-shaped sintering furnace (1); Features: The invention also comprises a processing chamber (2), a temperature processing component (3), a gas processing component (4), and a material inlet (5); the right end of the heat pipe bell-shaped sintering furnace (1) is provided with a processing chamber (2) for placing materials for sintering and annealing; the inner side of the processing chamber (2) is provided with a temperature processing component (3) for ensuring uniform temperature in the furnace; the upper end of the processing chamber (2) is provided with a gas processing component (4) for recycling protective gas; and the front end of the processing chamber (2) is provided with a material inlet (5).

2. A heat pipe bell-shaped sintering annealing device according to claim 1, Features: The temperature treatment component (3) comprises a driving motor (301), a first active transmission member (302), a driven transmission member (303), a fan (304), a threaded rod (305), a movable sleeve (306) and a scraper (307); the first active transmission member (302) is installed at the lower end of the output shaft of the driving motor (301); and the left and right ends of the first active transmission member (302) are connected to the driven transmission member (303) via a belt linkage.

3. A heat pipe bell-shaped sintering annealing device according to claim 2, Features: A distribution fan (304) is installed at the lower end of the output shaft of the first active transmission member (302) to promote the flow of air in the furnace and improve the distribution of heat.

4. A heat pipe bell-shaped sintering annealing device according to claim 2, Features: A threaded rod (305) is installed at the lower end of the output of the driven transmission member (303); a movable sleeve (306) is drivingly connected to the outer side of the threaded rod (305); and a scraper (307) for removing scale deposited on the furnace wall and maintaining the thermal conductivity of the inner wall is fixedly connected to the outer side of the movable sleeve (306).

5. The heat pipe bell-shaped sintering annealing device according to claim 1, Features: The gas processing assembly (4) comprises an input pipeline (401), a processing box (402), an output pipeline (403), a first chamber (404), a second chamber (405), a multi-layer filtering structure (406), a cooling device (407) and a moisture separator (408); the input pipeline (401) is arranged at the rear side of the lower end of the processing box (402); An output pipe (403) is arranged on the side close to the lower end of the processing box (402).

6. A heat pipe bell-shaped sintering annealing device according to claim 5, Features: A first chamber (404) and a second chamber (405) are respectively arranged inside the processing box (402); a multi-layer filtering structure (406) is installed inside the first chamber (404).

7. The heat pipe bell-shaped sintering annealing device according to claim 5, Features: A cooling device (407) and a moisture separator (408) are installed inside the second chamber (405).

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