CN116857954A - Lithium battery kiln replacement chamber with airflow circulation structure - Google Patents

Abstract

The application provides a lithium battery kiln replacement chamber with an air flow circulation structure, which is applied to the field of lithium battery kilns.

Description

Lithium battery kiln replacement chamber with airflow circulation structure

Technical Field

The application relates to the field of lithium battery kilns, in particular to a lithium battery kiln replacement chamber with an airflow circulation structure.

Background

The lithium battery kiln is kiln equipment for carrying out sintering treatment on lithium battery materials, the lithium battery kiln replacement chamber is equipment which is arranged on a lithium battery kiln feed inlet and used for transferring and out of the lithium battery materials, and the lithium battery kiln is provided with a plurality of replacement bins which can be independently closed, so that the lithium battery materials are transferred in and out, external air can be effectively prevented from entering the kiln in the feeding and discharging process, or gas in the kiln escapes outwards, and the airtight stability in the feeding and discharging process of the kiln is further ensured.

In the prior art, although the lithium battery kiln replacement chamber can realize the sealed transportation of lithium battery materials in the use process, the temperature control treatment of the lithium battery materials is not usually carried out by adopting air flow in the process of transferring out the lithium battery materials after the treatment of the lithium battery materials, so that the lithium battery materials suddenly contact with the external environment after the sintering and transferring out, and huge temperature difference change easily causes shrinkage damage of the lithium battery materials to influence the qualification rate of the lithium battery materials after the treatment of the kiln and transferring out.

Therefore, a lithium battery kiln replacement chamber with an airflow circulation structure is provided to solve some problems in the prior art.

Disclosure of Invention

Compared with the prior art, the application provides a lithium battery kiln replacement chamber with an airflow circulation structure, which comprises a kiln and a plurality of longitudinally arranged replacement bins, wherein the replacement bins are communicated back and forth and fixedly arranged on a feed inlet of the kiln;

the front end and the rear end of the replacement bin are fixedly provided with gate shells, the gate shells are provided with through holes communicated with the replacement bin in an adapting mode, gate bodies are slidably installed in the gate shells, the outer side sizes of the gate bodies are larger than the inner side sizes of the through holes, the tops of the gate shells are fixedly provided with stepping motors, screw rods extending downwards to the inside of the gate shells are vertically fixed on driving shafts of the stepping motors, and the screw rods are in threaded connection with the inside of the gate bodies.

Through being provided with exhaust tube one, in lithium electricity material roll-out process, can progressively extract the gas in the kiln and preheat each replacement storehouse forward from the back, the aspiration pump one of cooperation installation in every replacement storehouse outside, bull solenoid valve and circulating pipe can constitute left and right sides circulating air current in each replacement storehouse, strengthen lithium electricity material roll-out balanced stability of cooling in the process, be favorable to avoiding lithium electricity material roll-out in-process to snatch the cooling and take place the shrink damage, promoted the safety and stability that the lithium electricity material rolled out after kiln treatment to a certain extent.

Further, a second exhaust pipe is fixedly communicated with the multi-head electromagnetic valve positioned at the forefront, and the other end of the second exhaust pipe is fixedly communicated with an exhaust gas discharge pipeline of the kiln.

Further, the other end of the exhaust pipe is communicated with the tail end of an exhaust gas discharge pipeline of the kiln, and a one-way valve positioned between the exhaust pipe II and the exhaust pipe is fixedly arranged in the exhaust gas discharge pipeline.

Further, a dispersing cover communicated with an air outlet of the air pump is fixed on the inner end wall of the right side of the replacement bin, a dispersing cover communicated with the circulating pipe is also fixed on the inner end wall of the left side of the replacement bin, and air holes are uniformly distributed on the dispersing cover.

Further, the transfer mechanism comprises a plurality of rollers which are transversely and rotatably arranged below the inner part of the replacement bin, the rollers are longitudinally distributed at equal intervals, the rollers are externally connected with a servo motor, and a plurality of evenly distributed ceramic wheels are fixedly arranged on the rollers.

Further, the ceramic plate located under the gate body is arranged in the through hole in a sliding mode, a spring fixedly connected with the inner end of the bottom of the gate shell is fixedly arranged at the bottom of the ceramic plate, limiting blocks which are vertically arranged are fixedly arranged on the inner end walls of the left side and the right side of the gate shell, and the bottom of each limiting block is flush with the top of each ceramic wheel.

Further, a butt flange communicated with the through hole is fixed on the front end wall of the foremost gate shell, a butt flange communicated with the through hole is also fixed on the back end wall of the rearmost gate shell, and the butt flange at the rear is fixedly communicated with the feeding hole of the kiln.

Further, the temperature in the plurality of replacement bins is gradually reduced from back to front.

Further, the outside of each communicating pipe is sleeved with an insulation box, the insulation boxes are filled with refrigerants, and the temperatures of the refrigerants in the plurality of insulation boxes are gradually reduced from back to front.

Further, the shape of the communicating pipe is set to be an S-shaped structure of reciprocating circulation, and a plurality of metal sheets which are uniformly distributed are fixedly arranged on the outer end wall of the communicating pipe.

Compared with the prior art, the application has the advantages that:

(1) According to the application, the exhaust pipe I is arranged, so that gas in the kiln can be gradually extracted to preheat each replacement bin from back to front in the process of transferring the lithium battery material, and the exhaust pump I, the multi-head electromagnetic valve and the circulating pipe which are arranged on the outer side of each replacement bin are matched, so that left and right circulating air flow can be formed in each replacement bin, the balanced stability of cooling in the process of transferring the lithium battery material is enhanced, shrinkage damage caused by sudden heating and cooling in the process of transferring the lithium battery material is avoided, and the safety stability of transferring the lithium battery material after the treatment of the kiln is improved to a certain extent.

(2) Through with exhaust tube two intercommunication between the tail gas exhaust pipeline of forefront bull solenoid valve and kiln, can be at the in-process of taking out the air in the forefront replacement storehouse, replace through rushing into kiln tail gas to its inside, be favorable to guaranteeing that the air discharge is comprehensive in the forefront replacement storehouse, further avoid the air to follow lithium electricity material and get into to in the kiln, be favorable to guaranteeing the operation stability of device.

(3) Through with blast pipe and exhaust gas discharge pipeline fixed intercommunication, can avoid displacing the gaseous influence to the surrounding environment when taking out in the storehouse, simultaneously, through installing the check valve in the exhaust gas discharge pipeline of kiln to make the check valve between exhaust tube two and the blast pipe, can avoid in the blast pipe exhaust contain air exhaust gas mixture tail gas and get into in the forefront displacement storehouse through exhaust tube two, be favorable to guaranteeing the stability in the device in-service use.

(4) Through fixing the dispersion cover respectively on the left and right sides inner end wall of displacement storehouse, carry out the dispersion of air current with the help of the gas pocket of evenly distributed on the dispersion cover, be favorable to making the gas circulate the flow process about in the displacement storehouse, can more evenly distribute in the displacement storehouse comprehensively, further promoted the balanced stability that the air current circulation in-process acted on lithium electricity material.

(5) Through with ceramic wheel fixed mounting on the roller, can keep apart between lithium electricity material and the roller in the transportation process, avoid handling the lithium electricity material that is in the high temperature high heat state after ending and lead to the fact the damage to the roller, be favorable to prolonging the life of device.

(6) Through installing the ceramic plate in the inside of gate casing to through the bottom inner end wall fixed connection of spring with ceramic plate and gate casing, the restriction of cooperation stopper, when making the gate body open, the ceramic plate can upwards move to flush the state with the ceramic wheel top, lifts the support in the transportation process of lithium electricity material, has promoted the stability of lithium electricity material when transporting between two replacement warehouses to a certain extent.

(7) When the lithium battery material is transported outwards and discharged through the device, the preheating temperature in a plurality of replacement bins from back to front is controlled to be gradually reduced, so that the temperature of the lithium battery material can be stably and curvilinearly reduced, the shrinkage damage caused by sudden cooling in the taking-out process is avoided, and the qualification rate of the lithium battery material after being treated and taken out is improved.

(8) The control of the gas temperature is realized through the refrigerant in the insulation can, and the flexible convenience of the gas temperature control is improved.

(9) Through setting the appearance of communicating pipe to the S type structure of reciprocal circulation, can effectively promote the time of flowing through gas in communicating pipe and the insulation can interior refrigerant contact, simultaneously, through fixing a plurality of foil evenly distributed on the outer end wall of communicating pipe, can effectively promote the refrigerant and carry out the heat exchange with the interior gas temperature of communicating pipe' S area, be favorable to promoting and adopt the timely controllability of gas temperature of flowing through in the refrigerant control communicating pipe.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective view of the structure of FIG. 1 with the incubator removed in accordance with the present application;

FIG. 3 is a front perspective view of the present application;

FIG. 4 is a perspective view of the structure in the replacement bin of the application;

FIG. 5 is a split view of the inner structure of the gate housing of the present application;

FIG. 6 is a top view of the present application;

FIG. 7 is a cross-sectional view taken at A-A of FIG. 6 in accordance with the present application;

FIG. 8 is a cross-sectional view taken at B-B in FIG. 6 in accordance with the present application;

FIG. 9 is a left side view of the present application;

FIG. 10 is a cross-sectional view of the application at C-C in FIG. 9.

The reference numerals in the figures illustrate:

1. replacing a bin; 101. an air pump I; 102. a multi-head electromagnetic valve; 103. a communicating pipe; 104. an exhaust pipe I; 105. an exhaust pipe II; 106. a circulation pipe; 107. a dispersion cover; 108. a roller; 109. a ceramic wheel; 2. a gate housing; 201. a gate body; 202. a stepping motor; 203. a screw; 204. a ceramic plate; 205. a spring; 206. a limiting block; 3. a butt flange; 4. an insulation box; 401. a metal foil.

Detailed Description

The embodiments of the present application will be described in detail and fully with reference to the accompanying drawings, and it is intended that all other embodiments of the application, which are apparent to one skilled in the art without the inventive faculty, are included in the scope of the present application.

Example 1

The application provides a lithium battery kiln replacement chamber with an air flow circulation structure, referring to fig. 1-10, the lithium battery kiln replacement chamber comprises a kiln and a plurality of longitudinally arranged replacement bins 1, wherein the replacement bins 1 are communicated back and forth and fixedly arranged on a feed inlet of the kiln, a first air pump 101 is fixedly arranged on the right end wall of the replacement bin 1, an air outlet of the first air pump 101 is fixedly communicated with the right end wall of the corresponding replacement bin 1, a plurality of solenoid valves 102 are fixedly communicated on the air inlet of the first air pump 101, a communicating pipe 103 is communicated between the two adjacent multi-head solenoid valves 102 in front and back, an air exhaust pipe 104 is communicated on the multi-head solenoid valve 102 positioned at the rearmost, the other end of the air exhaust pipe 104 is fixedly communicated into the kiln, a circulating pipe 106 is fixedly communicated on the multi-head solenoid valve 102, the other end of the circulating pipe 106 is fixedly communicated with the left end wall of the replacement bin 1, a second air exhaust pipe is fixedly arranged on the outer end wall of the multi-head solenoid valve 102 positioned at the foremost, an air inlet of the second air pump is fixedly communicated with the right end wall of the replacement bin 1 positioned at the foremost, a communicating pipe 103 is communicated with the air outlet of the second air pump, and a transfer mechanism is arranged at the bottom of the replacement bin 1;

the front and back ends of the replacement bin 1 are fixedly provided with a gate shell 2, a through hole communicated with the replacement bin 1 is formed in the gate shell 2 in an adapting mode, a gate body 201 is slidably installed in the gate shell 2, the outer side size of the gate body 201 is larger than the inner side size of the through hole, a stepping motor 202 is fixedly installed at the top of the gate shell 2, a screw 203 extending downwards to the inside of the gate shell 2 is vertically fixed on a driving shaft of the stepping motor 202, and the screw 203 is in threaded connection with the inside of the gate body 201.

During the use process of the replacement room, a worker transfers lithium battery materials into a kiln through a plurality of replacement bins 1 which are communicated front and back, or transfers the lithium battery materials out of the kiln, the gate bodies 201 in a plurality of gate shells 2 are all positioned at the lower positions in a normal state in the use process of the device, the through holes on the gate shells 2 are closed, in the process of transferring the lithium battery materials into the kiln, a stepping motor 202 positioned on the forefront gate shells 2 is electrified and started to drive a screw 203 fixedly connected with a driving shaft of the stepping motor to rotate, the gate bodies 201 positioned in the forefront gate shells 2 are driven to move upwards by means of meshing of threads, the through holes of the stepping motor are in an open state, and the worker places the lithium battery materials to be transferred into the forefront replacement bin 1 at the moment and places the lithium battery materials on a transfer mechanism.

After the lithium battery material is put into, the operator controls the gate body 201 in the forefront gate shell 2 to fall down to close, the opening is plugged again, at the moment, the suction pump II is electrified and started, the suction operation is carried out in the forefront replacement bin 1, air in the forefront replacement bin 1 is discharged, after the air in the forefront replacement bin 1 is discharged, the operator starts the stepping motor 202 at the top of the gate shell 2 at the rear, controls the gate body 201 in the corresponding gate shell 2 to rise upwards, the opening is opened, at the moment, the transfer mechanism is started, the lithium battery material in the forefront replacement bin 1 is transferred into the kiln communicated with the replacement bin 1 at the rear, after the lithium battery material completely enters the replacement bin 1 at the rear, the gate body 201 opened before is moved downwards again to close, the gate body 201 in the next gate shell 2 is continuously moved upwards to open, and the operation is repeated, so that the lithium battery material is stably transferred into the kiln communicated with the replacement bin 1 to be sintered.

When the lithium battery material is required to be rolled out from the kiln after being processed, a worker pumps part of gas in the kiln into the rearmost replacing bin 1 in advance through the matching of the first air pump 101, the multi-head electromagnetic valve 102 and the first air pump 104 on the outer end wall of the rearmost replacing bin 1, the ambient temperature in the rearmost replacing bin 1 is preheated, the gas in the kiln can be nitrogen, then the worker controls the gate body 201 in the rearmost gate shell 2 to rise upwards, the lithium battery material after being processed in the kiln moves from the kiln into the rearmost replacing bin 1 through the transfer mechanism, then the gate body 201 in the rearmost gate shell 2 is operated to be closed, at the moment, the first air pump 101, the multi-head electromagnetic valve 102 and the circulating pipe 106 arranged on the outer side of the rearmost replacing bin 1 are matched with each other, and air flow circulation flow is formed in the rearmost replacing bin 1, so that the lithium battery material transferred into the rearmost replacing bin 1 is uniformly and efficiently reduced to the air flow temperature in the circulation flow.

In the process of the operation, the first air pump 101, the multi-head electromagnetic valve 102 and the communicating pipe 103 on the outer side of the front replacement bin 1 are matched and started, and part of air in the rear replacement bin 1 is pumped into the front replacement bin 1 to preheat the environment temperature.

Then the gate body 201 in the gate shell 2 between the two replacing chambers 1 moves upwards to open, the lithium battery material in the rearmost replacing chamber 1 is transferred forward to the former replacing chamber 1, after the transfer of the lithium battery material is finished, the gate body 201 moves downwards again to close, at the moment, the residual gas in the rearmost replacing chamber 1 is continuously pumped into the replacing chamber 1 where the lithium battery material is positioned, and the left and right circulating air flow is continuously constructed in the replacing chamber 1 where the lithium battery material is positioned through the matching of the air pump 101, the multi-head electromagnetic valve 102 and the circulating pipe 106, so that the temperature state of the lithium battery material is balanced, the operation is repeated until the lithium battery material is transferred into the foremost replacing chamber 1, and is taken out, and the temperature of the lithium battery material in the process is uniformly and stably reduced.

If the length of the lithium battery material is too long, the plurality of replacement bins 1 can be controlled to cooperatively operate according to the actual size of the lithium battery material, the gate body 201 in the gate shell 2 arranged front and back of the plurality of replacement bins 1 is correspondingly opened and closed, the purpose of transferring or turning out the lithium battery material is finally achieved, and the gas in the kiln is prevented from leaking outwards in the process of feeding and discharging the lithium battery material.

During the use of the device, it should be noted that before the lithium battery material is outwards taken out through the forefront replacement bin 1 after being processed, the nitrogen gas in the replacement bin 1 needs to be pumped out through the second air pump, the air inlet pipe communicated with the outside atmosphere is further connected to the multi-head electromagnetic valve 102 positioned at the forefront, and during the nitrogen gas discharging process, the outside air is pumped into the replacement bin 1 through the first air pump 101, the multi-head electromagnetic valve 102 and the air inlet pipe, so that the air pressure in the forefront replacement bin 1 is balanced.

According to the application, the plurality of replacement bins 1 are communicated with each other, the gate shell 2 is arranged in front of and behind each replacement bin 1, one gate shell 2 is shared between the two front and rear adjacent replacement bins 1, the gate body 201 in the gate shell 2 is matched to move up and down, and the transfer mechanism is arranged in the replacement bin 1, so that the mutual doping of gas in a kiln and external gas can be avoided in the process of ensuring that lithium battery materials stably enter and exit the kiln through the device, the working stability of the kiln is effectively ensured, meanwhile, the first exhaust pipe 104 is arranged, the gas in the kiln can be gradually extracted to preheat each replacement bin 1 forwards from back to back in the process of the lithium battery material exiting the kiln, and the first exhaust pump 101, the multi-head electromagnetic valve 102 and the circulation pipe 106 which are arranged outside each replacement bin 1 are matched to form left and right circulating air flow in each replacement bin 1, so that the balanced stability of cooling in the process of lithium battery material exiting the kiln is enhanced, the shrinkage damage caused by the sudden cooling in the process of lithium battery material exiting the kiln is avoided, and the stability of the lithium battery material exiting the kiln is improved to a certain extent.

Referring to fig. 1, 2 and 6, the second exhaust pipe 105 is fixedly connected to the multi-head electromagnetic valve 102 at the forefront, and the other end of the second exhaust pipe 105 is fixedly connected to the exhaust gas discharge pipe of the kiln, during the use of the replacement chamber, when lithium battery material enters the forefront replacement bin 1 and the gate body 201 in the forefront gate housing 2 moves downwards to be closed, in order to ensure that the external air entering the replacement bin 1 is completely discharged, the worker can continuously suck the exhaust gas discharged from the kiln into the forefront replacement bin 1 through the first exhaust pump 101, the multi-head electromagnetic valve 102 and the second exhaust pipe 105 during the process of discharging the air in the replacement bin 1 through the second exhaust pump, and replace the air in the forefront replacement bin 1 through the charging of the exhaust gas.

According to the application, the exhaust pipe II 105 is communicated between the forefront multi-head electromagnetic valve 102 and the tail gas discharge pipeline of the kiln, and the kiln tail gas is flushed into the interior of the forefront multi-head electromagnetic valve to be replaced in the process of exhausting the air in the forefront replacement bin 1, so that the exhaust pipe II is beneficial to ensuring the overall air discharge in the forefront replacement bin 1, further avoiding the air from entering the kiln along with lithium battery materials, and ensuring the operation stability of the device.

The other end of blast pipe intercommunication is at the end of the exhaust emission pipeline of kiln, and fixed mounting has the check valve that is located between exhaust tube two 105 and the blast pipe in the exhaust emission pipeline, and this replacement room use is through fixed intercommunication with blast pipe and exhaust emission pipeline, can avoid the gas in the replacement storehouse 1 to take out and cause the influence to the surrounding environment when leaving, simultaneously, through installing the check valve in the exhaust emission pipeline of kiln to make the check valve between exhaust tube two 105 and the blast pipe, can avoid the exhaust in the blast pipe contain air waste gas mixture tail gas and get into in the forefront replacement storehouse 1 through exhaust tube two 105, be favorable to guaranteeing the device stability in the in-service use.

Referring to fig. 3, 4 and 8, a dispersing cover 107 communicated with the air outlet of the air pump 101 is fixed on the right inner end wall of the replacing bin 1, a dispersing cover 107 communicated with the circulation pipe 106 is also fixed on the left inner end wall of the replacing bin 1, air holes are uniformly distributed on the dispersing cover 107, and in the using process of the replacing bin, the dispersing cover 107 is respectively fixed on the left inner end wall and the right inner end wall of the replacing bin 1, and air flows are dispersed by means of the air holes uniformly distributed on the dispersing cover 107, so that the air can be uniformly and comprehensively distributed in the replacing bin 1 in the left and right circulating flowing process of the replacing bin 1, and the balance stability of the air flowing on lithium battery materials in the circulating process of the air flows is further improved.

Referring to fig. 4 and 10, the transfer mechanism includes a plurality of rollers 108 rotatably mounted in a transverse direction below the inner portion of the replacement bin 1, the rollers 108 are longitudinally arranged at equal intervals, the rollers 108 are externally connected with a servo motor, a plurality of uniformly distributed ceramic wheels 109 are fixedly mounted on the rollers 108, in the use process of the replacement chamber, the externally connected servo motor is electrified and started to drive the rollers 108 in transmission connection with a driving shaft thereof to rotate, the rollers 108 drive the ceramic wheels 109 to rotate, lithium battery materials placed on the rollers are conveyed, the rollers 108 are fixedly mounted on the ceramic wheels 109, the lithium battery materials and the rollers 108 can be isolated in the conveying process, damage to the rollers 108 caused by the lithium battery materials in a high-temperature and high-heat state after the treatment is avoided, and the service life of the device is prolonged.

Referring to fig. 5, 8 and 10, a ceramic plate 204 located right below the gate body 201 is slidably mounted in the through hole, a spring 205 fixedly connected to the inner end of the bottom of the gate housing 2 is fixedly mounted at the bottom of the ceramic plate 204, and vertically disposed stoppers 206 are fixedly mounted on the inner end walls of the left and right sides of the gate housing 2, and the bottom of the stoppers 206 is flush with the top of the ceramic wheel 109.

During the use of the replacement chamber, when the gate body 201 moves downwards in the gate shell 2 to be in a closed state, the spring 205 is pressed by the downward movement extrusion of the gate body 201, the ceramic plate 204 is extruded to be received into the bottom of the gate shell 2, when the gate body 201 moves upwards in the gate shell 2 to be in an open state, the extrusion of the gate body 201 is lost, the ceramic plate 204 moves upwards under the elastic support of the spring 205, and the top of the ceramic plate 204 is flush with the top of the ceramic wheel 109 due to the limitation of the limiting block 206, so that the lithium battery material is transported between the front replacement bin 1 and the rear replacement bin 1 to be connected and lifted.

According to the application, the ceramic plate 204 is arranged in the gate shell 2, the ceramic plate 204 is fixedly connected with the inner end wall at the bottom of the gate shell 2 through the spring 205, and the limit of the limit block 206 is matched, so that when the gate body 201 is opened, the ceramic plate 204 can move upwards to be in a state of being flush with the top of the ceramic wheel 109, and the lifting support is carried out in the process of transferring lithium battery materials, so that the stability of the lithium battery materials in transferring between the two replacement bins 1 is improved to a certain extent.

Referring to fig. 1, a butt flange 3 communicated with the through hole is fixed on the front end wall of the foremost gate housing 2, a butt flange 3 communicated with the through hole is also fixed on the back end wall of the rearmost gate housing 2, the butt flange 3 at the rear is fixedly communicated with the feed inlet of the kiln, and in the using process of the replacement chamber, the butt flange 3 is connected on the front end wall of the foremost gate housing 2 and the back end wall of the rearmost gate housing 2, and the convenience and stability of the connection and installation of the device are improved by virtue of the communication of the butt flange 3.

The temperature in the plurality of replacement bins 1 from the back to the front gradually decreases, and in the use process of the replacement chamber, when the lithium battery material is transported outwards through the device after being processed, the preheating temperature in the plurality of replacement bins 1 from the back to the front is controlled to gradually decrease, so that the temperature of the lithium battery material can be stably and curvilinearly reduced, the shrinkage damage caused by suddenly cooling in the process of taking out the lithium battery material is avoided, and the qualification rate of the lithium battery material after being processed and taken out is improved.

Referring to fig. 1, 2 and 10, an insulation box 4 is sleeved on the outer side of each communicating pipe 103, a refrigerant is filled in the insulation box 4, the temperature of the refrigerant in the plurality of insulation boxes 4 is gradually reduced from back to front, in the using process of the replacement chamber, the insulation box 4 is sleeved on the outer side of each communicating pipe 103, the refrigerant is filled in each insulation box 4, the temperature of the flowing gas in the communicating pipe 103 is realized by controlling the temperature of the refrigerant, and the temperature of the preheated gas in each replacement bin 1 from back to front is gradually reduced in the process of turning out the lithium battery material.

Referring to fig. 2, the outer shape of the communicating tube 103 is set to be a reciprocating S-shaped structure, and a plurality of metal sheets 401 are fixedly mounted on the outer end wall of the communicating tube 103, so that in the use process of the replacement chamber, the time of contact between the flowing gas in the communicating tube 103 and the refrigerant in the heat insulation box 4 can be effectively increased by setting the outer shape of the communicating tube 103 to be a reciprocating S-shaped structure, and meanwhile, the area of heat exchange between the refrigerant and the temperature of the gas in the communicating tube 103 can be effectively increased by uniformly distributing and fixing the plurality of metal sheets 401 on the outer end wall of the communicating tube 103, thereby being beneficial to improving the timely controllability of controlling the flowing gas temperature in the communicating tube 103 by adopting the refrigerant.

The present application is not limited to the preferred embodiments described above, but is merely preferred for practical application.

Claims (10)

1. The lithium battery kiln replacement chamber with the air flow circulation structure comprises a kiln and a plurality of longitudinally arranged replacement bins (1), and is characterized in that the replacement bins (1) are communicated back and forth and fixedly arranged on a feeding hole of the kiln, a first sucking pump (101) is fixedly arranged on the right end wall of the replacement bin (1), an air outlet of the first sucking pump (101) is fixedly communicated with the right end wall of the corresponding replacement bin (1), a plurality of first electromagnetic valves (102) are fixedly communicated with an air inlet of the first sucking pump (101), a communicating pipe (103) is communicated between the two front and rear adjacent multi-headed electromagnetic valves (102), a first sucking pipe (104) is communicated with the multi-headed electromagnetic valve (102) positioned at the rearmost part, the other end of the first sucking pipe (104) is fixedly communicated with the kiln, a circulating pipe (106) is fixedly communicated with the other end wall of the replacement bin (1), a second sucking pump is fixedly arranged on the outer end wall of the multi-headed electromagnetic valve (102), and the two sucking pumps are fixedly communicated with the air inlet of the replacement bin (1) positioned at the bottom of the replacement bin;

the front end and the rear end of the replacement bin (1) are fixedly provided with a gate shell (2), a through hole communicated with the replacement bin (1) is formed in the gate shell (2) in an adapting mode, a gate body (201) is slidably installed in the gate shell (2), the outer side size of the gate body (201) is larger than the inner side size of the through hole, the top of the gate shell (2) is fixedly provided with a stepping motor (202), a screw rod (203) extending downwards to the inside of the gate shell (2) is vertically fixed on a driving shaft of the stepping motor (202), and the screw rod (203) is in threaded connection with the inside of the gate body (201).

2. The lithium battery kiln replacement chamber with the airflow circulation structure according to claim 1, wherein a second exhaust pipe (105) is fixedly communicated with the multi-head electromagnetic valve (102) positioned at the forefront, and the other end of the second exhaust pipe (105) is fixedly communicated with an exhaust gas discharge pipeline of the kiln.

3. The lithium battery kiln replacement chamber with the airflow circulation structure according to claim 2, wherein the other end of the exhaust pipe is communicated with the tail end of an exhaust gas discharge pipeline of the kiln, and a one-way valve positioned between the exhaust pipe II (105) and the exhaust pipe is fixedly arranged in the exhaust gas discharge pipeline.

4. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 1, wherein a dispersing cover (107) communicated with an air outlet of the first air pump (101) is fixed on the right inner end wall of the replacement bin (1), a dispersing cover (107) communicated with a circulation pipe (106) is also fixed on the left inner end wall of the replacement bin (1), and air holes are uniformly distributed on the dispersing cover (107).

5. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 1, wherein the transfer mechanism comprises a plurality of rollers (108) which are transversely and rotatably arranged below the inner part of the replacement bin (1), the rollers (108) are longitudinally distributed at equal intervals, the rollers (108) are externally connected with a servo motor, and a plurality of uniformly distributed ceramic wheels (109) are fixedly arranged on the rollers (108).

6. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 5, wherein a ceramic plate (204) located right below the gate body (201) is slidably installed in the through hole, a spring (205) fixedly connected with the inner end of the bottom of the gate shell (2) is fixedly installed at the bottom of the ceramic plate (204), limiting blocks (206) which are vertically arranged are fixedly installed on the inner end walls of the left side and the right side of the gate shell (2), and the bottom of each limiting block (206) is flush with the top of each ceramic wheel (109).

7. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 6, wherein a butt flange (3) which is in fit communication with a through port is fixed on the front end wall of the gate housing (2) at the forefront, a butt flange (3) which is in fit communication with the through port is also fixed on the back end wall of the gate housing (2) at the rearmost, and the butt flange (3) at the rear is fixedly communicated with a feed port of the kiln.

8. A lithium battery kiln replacement chamber with an air flow circulation structure according to claim 1, characterized in that the temperature in a plurality of the replacement bins (1) is gradually lowered from the back to the front.

9. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 8, wherein an insulation box (4) is sleeved on the outer side of each communicating pipe (103), refrigerant is filled in the insulation boxes (4), and the temperature of the refrigerant in the plurality of insulation boxes (4) is gradually reduced from back to front.

10. The lithium battery kiln replacement chamber with the air flow circulation structure according to claim 9, wherein the communicating pipe (103) is in an S-shaped structure with reciprocating circulation, and a plurality of metal sheets (401) which are uniformly distributed are fixedly arranged on the outer end wall of the communicating pipe (103).