CN-116817599-B - High-temperature vacuum reaction kettle circulating atmosphere system

Abstract

The invention discloses a circulating atmosphere system of a high-temperature vacuum reaction kettle, which comprises a circulating atmosphere system main body, wherein the circulating atmosphere system main body comprises a cooler, a dust collector, a vacuum pump, a protective atmosphere part and a reaction atmosphere part which are sequentially communicated, a tail gas treatment device is arranged between the vacuum pump and the protective atmosphere part, the cooler and the reaction atmosphere part are respectively communicated with the high-temperature reaction kettle, a gas sealing module is arranged on a stirring shaft of the high-temperature reaction kettle, and the gas sealing module is communicated with the protective atmosphere part. When the high-temperature reaction kettle is used, the vacuum pump is started firstly, the vacuum pump pumps air in the high-temperature reaction kettle through the dust collector to enable the inside of the high-temperature reaction kettle to be in a vacuum state, the protective atmosphere part provides inert protective gas for the gas sealing module, so that the inert protective gas is filled in the gas sealing module, and when leakage occurs, the inert protective gas enters the high-temperature reaction kettle to prevent air from entering the high-temperature reaction kettle, so that the sintering high-temperature vacuum reaction kettle can safely and stably run.

Inventors

• Ou Wenlong
• CHEN ZHIJIANG
• LIU RUWEI
• DENG CHAOHUI
• ZHAO HAITAO

Assignees

• 佛山市天禄智能装备科技有限公司

Dates

Publication Date

20260508

Application Date

20230720

Claims (4)

1. 1. A high temperature vacuum autoclave circulating atmosphere system, comprising: The circulating atmosphere system comprises a circulating atmosphere system main body (100), wherein the circulating atmosphere system main body (100) comprises a cooler (2), a dust collector (3), a vacuum pump (4), a protective atmosphere part (7) and a reaction atmosphere part (8) which are sequentially communicated, a tail gas treatment device (5) is arranged between the vacuum pump (4) and the protective atmosphere part (7), the cooler (2) and the reaction atmosphere part (8) are respectively communicated with a high-temperature reaction kettle (1), a gas sealing module is arranged on a stirring shaft (101) of the high-temperature reaction kettle (1), and the gas sealing module is communicated with the protective atmosphere part (7); The gas sealing module comprises an inner sealing device (102), a protective gas cover (103) and a sealing protection control valve (33), wherein the inner sealing device (102) is arranged on a stirring shaft (101), the protective gas cover (103) is arranged at the upper end of the high-temperature reaction kettle (1) and sleeved on the inner sealing device (102), the protective gas cover (103) is communicated with a protective atmosphere part (7), an exhaust valve (104) is arranged on the protective gas cover (103), and the sealing protection control valve (33) is arranged between the protective gas cover (103) and the protective atmosphere part (7); a first main pipeline (91) is arranged between the protective atmosphere part (7) and the high-temperature reaction kettle (1), the gas sealing module is communicated with the first main pipeline (91) through a first branch pipeline (92), and the sealing protection control valve (33) is arranged on the first branch pipeline (92); The reaction atmosphere part (8) is communicated with the first main pipeline (91) through a second branch pipeline (93), a reaction atmosphere control valve (31) is arranged on the second branch pipeline (93), a protective atmosphere control valve (32) is arranged on the first main pipeline (91), the protective atmosphere control valve (32) is positioned at the front side of the first branch pipeline (92), the protective atmosphere part (7) is communicated with the first main pipeline (91) through a third branch pipeline (94), and a first check valve (36) is arranged on the third branch pipeline (94); A second main pipeline (95) is arranged between the vacuum pump (4) and the protective atmosphere part (7), a fourth branch pipeline (96) and a fifth branch pipeline (97) are arranged on the second main pipeline (95), a second one-way valve (37) is arranged on the fourth branch pipeline (96), an exhaust control valve (35) is arranged on the fifth branch pipeline (97), the tail ends of the fourth branch pipeline (96) and the fifth branch pipeline (97) are communicated with the tail gas treatment device (5), a circulating pressure reducing control valve (34) and an atmosphere impurity removing filter (6) are respectively arranged on the second main pipeline (95), and the circulating pressure reducing control valve (34) and the atmosphere impurity removing filter (6) are positioned on the rear side of the fourth branch pipeline (96); The high-temperature reaction kettle (1) comprises an outer kettle body (11), an inner kettle body (12) and an explosion-proof inner module (13), wherein the inner kettle body (12) is arranged in the outer kettle body (11), the explosion-proof inner module (13) is arranged between the inner kettle body (12) and the outer kettle body (11), the explosion-proof inner module (13) comprises a first steel wire layer (14), a second steel wire layer (15) and a plurality of node supporting parts (16), the plurality of node supporting parts (16) are arranged between the first steel wire layer (14) and the second steel wire layer (15), two explosion-proof inner film layers (140) are arranged between the first steel wire layer (14) and the second steel wire layer (15), and a polyurethane foam layer (10) is filled between the two explosion-proof inner film layers (140); The node supporting portion (16) comprises a first vertical explosion-proof plate (17), a second vertical explosion-proof plate (18), a plurality of transverse telescopic rods (19), a first explosion-proof guide group (20) and a second explosion-proof guide group (21), the first vertical explosion-proof plate (17) is arranged on the first steel wire layer (14), the second vertical explosion-proof plate (18) is arranged on the second steel wire layer (15), the plurality of transverse telescopic rods (19) are arranged between the first vertical explosion-proof plate (17) and the second vertical explosion-proof plate (18), the first explosion-proof guide group (20) is arranged on the inner wall of the first vertical explosion-proof plate (17), the second explosion-proof guide group (21) is arranged on the inner wall of the second vertical explosion-proof plate (18), the second explosion-proof guide group (21) is movably connected with the plurality of transverse telescopic rods (19), a protective ring (160) is arranged on the inner wall of the first vertical explosion-proof plate (17) and the second vertical explosion-proof plate (18), and two protective rings (160) are arranged between the protective rings (161).
2. 2. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 1, wherein the first explosion-proof guide group (20) comprises a first elastic guide seat (201), a second elastic guide seat (202), a guide telescopic rod (203) and a plurality of guide frames (204), the first elastic guide seat (201) is arranged on the inner wall of the first vertical explosion-proof plate (17), the second elastic guide seat (202) is arranged on the second explosion-proof guide group (21), the guide telescopic rod (203) is arranged between the first elastic guide seat (201) and the second elastic guide seat (202), the guide frames (204) are uniformly distributed on the inner wall of the first vertical explosion-proof plate (17) and are positioned around the first elastic guide seat (201), the two vertical telescopic guide rods of the guide frames (204) are respectively provided with a first guide roller body (205), and the two first guide roller bodies (205) are respectively connected with the outer guide walls of the first elastic guide seat (201) and the second elastic guide seat (202) in a sliding mode.
3. 3. The high-temperature vacuum reaction kettle circulating atmosphere system according to claim 2, wherein the second explosion-proof guide group (21) comprises a middle explosion-proof seat (211), a plurality of first oblique guide rods (212), an inner moving plate (213), an inner spring (214) and a plurality of second oblique guide rods (215), the middle explosion-proof seat (211) is arranged on the inner wall of the second vertical explosion-proof plate (18), the second elastic guide seat (202) is arranged on the middle explosion-proof seat (211), a plurality of angle guide holes (216) are formed in the middle explosion-proof seat (211), the inner moving plate (213) is arranged in the middle explosion-proof seat (211) and connected with the inner spring (214), one end of the first oblique guide rod (212) passes through the angle guide holes (216) and is hinged with the inner moving plate (213), the other end of the second oblique guide rod (215) is hinged with the inner wall of the middle explosion-proof seat (18), the other end of the second oblique guide rod (215) is provided with a second guide body (217), and the second oblique guide rod (215) is connected with the inner wall of the middle explosion-proof roller (211).
4. 4. A high temperature vacuum reaction kettle circulating atmosphere system according to claim 3, characterized in that the transverse telescopic rod (19) comprises a transverse inner cylinder (191), a transverse inner rod (192), a transverse spring (193) and a fixed cylinder (194), the fixed cylinder (194) is arranged on the inner wall of the second vertical explosion-proof plate (18), the transverse inner cylinder (191) is arranged in the fixed cylinder (194), one end of the transverse inner rod (192) is connected with the inner wall of the first vertical explosion-proof plate (17), the other end is arranged in the transverse inner cylinder (191) in a penetrating way, the transverse spring (193) is arranged on the transverse inner rod (192) and abuts against the transverse inner cylinder (191), an outer hinge block (195) is arranged on the transverse inner rod (192), and the other end of the second inclined guide rod (215) is connected with the outer hinge block (195).

Description

High-temperature vacuum reaction kettle circulating atmosphere system Technical Field The invention relates to the technical field of atmosphere control of a high-temperature sintering vacuum reaction kettle for lithium battery materials, in particular to a circulating atmosphere system of a high-temperature vacuum reaction kettle. Background The lithium battery material sintering high-temperature vacuum reaction kettle is used for carrying out vacuum high-temperature sintering on materials when in work, protective atmosphere and special atmosphere are required to be injected, and the sealing performance of the vacuum reaction kettle is very tested. The high-temperature sintering reaction of the lithium battery material has very high requirements on the purity of the atmosphere, and the atmosphere in the high-temperature reaction kettle cannot contain active gases such as air, oxygen and the like, and inert protective gas and reaction gas required by the reaction need to be injected. The protective atmosphere is inert gases such as nitrogen, argon and the like, the protective atmosphere does not react, and the inert gases are pumped into a high-temperature reaction kettle and then pumped out by a vacuum pump, so that waste is caused. The lithium battery material high temperature vacuum reaction kettle has the advantages that the reaction environment needs to reach a certain vacuum degree, the sealing requirement is very high, the leakage risk exists in the vacuum mechanical sealing device of the rotating shaft, and in the high vacuum degree state, the sealing material has air permeability, so that air enters the high temperature reaction kettle to influence the material reaction. Therefore, there is a need for a high temperature vacuum reactor circulating atmosphere system that at least partially addresses the problems of the prior art. Disclosure of Invention In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. In order to at least partially solve the problems, the invention provides a circulating atmosphere system of a high-temperature vacuum reaction kettle, which comprises a circulating atmosphere system main body, wherein the circulating atmosphere system main body comprises a cooler, a dust collector, a vacuum pump, a protective atmosphere part and a reaction atmosphere part which are sequentially communicated, a tail gas treatment device is arranged between the vacuum pump and the protective atmosphere part, the cooler and the reaction atmosphere part are respectively communicated with the high-temperature reaction kettle, a gas sealing module is arranged on a stirring shaft of the high-temperature reaction kettle, and the gas sealing module is communicated with the protective atmosphere part. According to the circulating atmosphere system of the high-temperature vacuum reaction kettle, the gas sealing module comprises an inner sealing device, a protective gas cover and a sealing protective control valve, the inner sealing device is arranged on the stirring shaft, the protective gas cover is arranged at the upper end of the high-temperature reaction kettle and sleeved on the inner sealing device, the protective gas cover is communicated with the protective atmosphere part, the protective gas cover is provided with an exhaust valve, and the sealing protective control valve is arranged between the protective gas cover and the protective atmosphere part. According to the high-temperature vacuum reaction kettle circulating atmosphere system provided by the embodiment of the invention, a first main pipeline is arranged between the protective atmosphere part and the high-temperature reaction kettle, the gas sealing module is communicated with the first main pipeline through a first branch pipeline, and the sealing protective control valve is arranged on the first branch pipeline. According to the high-temperature vacuum reaction kettle circulating atmosphere system disclosed by the embodiment of the invention, the reaction atmosphere part is communicated with the first main pipeline through the second branch pipeline, the second branch pipeline is provided with the reaction atmosphere control valve, the first main pipeline is provided with the protective atmosphere control valve, the protective atmosphere control valve is positioned at the front side of the first branch pipeline, the protective atmosphere part is communicated with the first main pipeline through the third branch pipeline, and the third branch pipeline is provided with the first check valve. According to the high-temperature vacuum reaction kettle circulating atmosphere system provided by the embodiment of the invention, a second ma