A circulating drying device for processing lithium battery raw materials

Abstract

The present invention belongs to the technical field of lithium battery processing, and discloses a circulating drying device for processing lithium battery raw materials; it comprises a drying box, a first conveyor belt is fixedly connected to one side of the inner wall of the drying box, a second conveyor belt is fixedly connected to the other side of the inner wall of the drying box, a hot air box is fixedly connected to the top of the drying box, and an enlarged opening is fixedly connected to the bottom of the hot air box. By arranging a flipping component, the device can start the first conveyor belt and the second conveyor belt to transfer the electrode sheet to one side when drying the electrode sheet, and flip the electrode sheet on the first conveyor belt to the second conveyor belt by reciprocatingly swinging the transfer plate in the flipping component, so that the bottom surface of the electrode sheet can be flipped to the top surface, and the electrode sheet can be dried by the hot air blown out from another group of hot air boxes, so that both sides of the electrode sheet are evenly dried, thereby solving the problem of inconvenience in drying the bottom of the electrode sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery processing, and more specifically, to a circulating drying device for processing lithium battery raw materials. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. With the development of science and technology, lithium batteries have become mainstream and are widely used in many fields. When processing lithium batteries, the electrode sheets of lithium batteries need to be dried to dry the surface of the electrode sheets.

[0003] The drying equipment for lithium battery electrode sheets mainly includes a drying box, a conveyor belt and a hot air blower. The conveyor belt is arranged inside the drying box, and the hot air blower is arranged at the top of the conveyor belt. When the lithium battery electrode sheets need to be dried, the conveyor belt can be used to transport the lithium battery electrode sheets to the bottom of the hot air blower, and the hot air blown out by the hot air blower can be used to dry the lithium battery electrode sheets.

[0004] In the prior art, when the electrode sheets of lithium batteries need to be dried, the hot air blower can usually only dry the top of the electrode sheets, while the bottom of the electrode sheets is usually difficult to dry. If the bottom of the electrode sheets needs to be dried, the drying time needs to be extended, which is inconvenient. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a circulating drying device for processing lithium battery raw materials.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circulating drying device for processing lithium battery raw materials, comprising a drying box, a first conveyor belt is fixedly connected to one side of the inner wall of the drying box, a second conveyor belt is fixedly connected to the other side of the inner wall of the drying box, a hot air box is fixedly connected to the top of the drying box, an expansion port is fixedly connected to the bottom of the hot air box, a shunt pipe is fixedly connected to the top of the hot air box, a hot air pipe is fixedly connected to one side of the shunt pipe, and also includes a flipping assembly for flipping the electrode sheet, the flipping assembly is arranged at the center of the inner wall of the drying box, a purification assembly for treating exhaust gas is arranged on one side of the drying box, the purification assembly includes a transmission pipe, the transmission pipe is fixedly connected to both sides of the drying box, an adjustment assembly for adjusting the direction of hot air is arranged inside the hot air box, and a cooling assembly for cooling the transmission pipe is fixedly connected to the outer wall of the transmission pipe.

[0007] Furthermore, the flipping assembly includes a rotating motor, which is fixedly connected to one side of the drying box, and the output end of the rotating motor is fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a disc, the side of the disc away from the rotating shaft is fixedly connected to a side rod, the side of the drying box close to the disc is fixedly connected to a sliding frame, the inner wall of the sliding frame is slidably connected to a sliding bar, one side of the sliding bar is fixedly connected to a rack, the end of the rack away from the sliding bar is fixedly connected to a frame bar, the side rod is slidably connected to the inner wall of the frame bar, the top end of the rack is meshed with a gear, and a rotating rod is fixedly connected to the center of the gear, the end of the rotating rod away from the gear extends into the inner wall of the drying box, the outer wall of the rotating rod is fixedly connected to a transfer plate, one side of the transfer plate is provided with a placement groove, and the transfer plate is arranged between the first conveyor belt and the second conveyor belt.

[0008] Furthermore, the purification component also includes a connecting strip, the connecting strip is fixedly connected to one side of the rack, and the end of the connecting strip away from the rack is fixedly connected to a transmission strip, a slide slot is provided at the top of the drying box, one side of the top of the transmission strip is slidably connected to the inner wall of the slide slot, one side of the top of the transmission strip is fixedly connected to a square frame, the square frame is arranged at the top of the inner wall of the drying box, the top of the drying box is fixedly connected to a sealed cover, the top of the sealed cover is fixedly connected to the top of the transmission strip, the sealed cover is sleeved on the top of the slide slot, the sealed cover is made of rubber, a telescopic tube is fixedly connected to one side of the square frame, one end of the telescopic tube away from the square frame is fixedly connected to one end of the transmission pipe, the end of the drying box away from the rotating motor is fixedly connected to a processing box, one end of the transmission pipe away from the telescopic tube is fixedly connected to the top of the processing box, the inner wall of the processing box is fixedly connected to an activated carbon layer, the other side of the inner wall of the processing box is fixedly connected to a fan, and a ventilation hole is provided on the side of the inner wall of the processing box close to the fan.

[0009] Furthermore, the adjustment assembly includes a round rod, which is rotatably connected to the inner wall of the hot air box, a guide plate is fixedly connected to the bottom of the round rod, one end of the round rod passes through the hot air box, and the end of the round rod extending out of the hot air box is fixedly connected to the bottom plate, and the round rod, the guide plate and the bottom plate are arranged in multiple groups and are distributed in parallel to the inner wall of the hot air box, a support plate is fixedly connected to the side of the hot air box close to the bottom plate, and a slide plate is slidably connected to the top of the support plate, the cross-section of the slide plate is square, and multiple groups of vertical plates are fixedly connected to the top of the slide plate. The vertical plate of the group is arranged between multiple groups of bottom plates, an L-shaped plate is fixedly connected to the other side of the hot air box, a spring is fixedly connected to one side of the L-shaped plate, the spring is fixedly connected to one end of the slide plate, a connecting rod is fixedly connected to the end of the slide plate away from the spring, a long strip plate is fixedly connected to the end of the connecting rod away from the slide plate, the outer wall of the rotating rod is fixedly connected to the vertical plate, the top end of the inner wall of the drying box is fixedly connected to a guide frame, the inner wall of the guide frame is slidably connected to a push plate, the push plate is arranged on one side of the vertical plate, and the push plate is arranged between two groups of long strip plates.

[0010] Further, the cooling component includes a first pulley, which is fixedly connected to the outer wall of the rotating shaft, a transmission belt is sleeved on the outer wall of the first pulley, a second pulley is sleeved on the other end of the inner wall of the transmission belt, a fan blade is fixedly connected to one side of the second pulley, a sleeve is fixedly connected to the outer wall of the transmission tube, the fan blade is arranged on one side of the sleeve, a connecting plate is fixedly connected to one side of the sleeve, and the second pulley is rotatably connected to one side of the connecting plate. The cooling component is provided with two groups, which are symmetrically distributed on both sides of the drying box, and the two groups of the first pulleys are distributed in parallel on the outer wall of the rotating shaft.

[0011] Furthermore, a support frame is fixedly connected to one side of the drying box, and the support frame is arranged at the bottom of the first conveyor belt. A cover plate is rotatably connected to one side of the drying box through a rotating shaft, and the cover plate is arranged at the top of the support frame. Two groups of the support frame and the cover plate are provided, and are symmetrically distributed on both sides of the drying box.

[0012] Furthermore, a filter screen is fixedly connected to the inner wall of the hot air duct, and three groups of the filter screens are arranged and distributed in parallel on the inner wall of the hot air duct.

[0013] The technical effects and advantages of the circulating drying device for processing lithium battery raw materials of the present invention are as follows:

[0014] (1) By setting up a flipping assembly, when drying the electrode sheet, the first conveyor belt and the second conveyor belt can be started to transfer the electrode sheet to one side, and the electrode sheet on the first conveyor belt can be flipped to the second conveyor belt by the reciprocating swing of the transfer plate in the flipping assembly, so that the bottom surface of the electrode sheet can be flipped to the top surface, and the electrode sheet can be dried by the hot air blown out from another set of hot air boxes, so that both sides of the electrode sheet can be dried evenly, thereby solving the problem of inconvenience in drying the bottom of the electrode sheet.

[0015] (2) By setting up a purification component, when the flip component is running, the frame can be driven to move back and forth, which can expand the scope of collecting exhaust gas. The exhaust gas can then be sucked into the treatment box through the frame, telescopic tube, and transmission tube, and purified through multiple sets of activated carbon layers. By setting up a cooling component, the transmission tube can be cooled when treating the exhaust gas to prevent the temperature of the exhaust gas in the transmission tube from being too high to damage the activated carbon layer and the fan.

[0016] (3) By setting up an adjustment component, when the flipping component is running, the vertical plate can swing back and forth to drive the multiple groups of guide plates to swing, so that the blowing direction of the hot air blown out from the bottom of the hot air box can be adjusted, which can help to make the hot air be evenly blown onto the first conveyor belt and the second conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention.

[0019] Figure 3 It is a schematic diagram of the overall first cross-sectional structure of the present invention.

[0020] Figure 4 for Figure 3 An enlarged schematic diagram of point A.

[0021] Figure 5 It is a schematic diagram of the partial structure of the flip assembly in the present invention.

[0022] Figure 6 It is a schematic diagram of the overall second cross-sectional structure of the present invention.

[0023] Figure 7 It is a schematic diagram of the partial structure of the purification component in the present invention.

[0024] Figure 8 It is a schematic diagram of the hot air box structure in the present invention.

[0025] Fig. 9 It is a cross-sectional schematic diagram of the hot air box in the present invention.

[0026] Fig.10 for Fig. 9 An enlarged schematic diagram of point B.

[0027] Fig.11 It is the overall third cross-sectional schematic diagram of the present invention.

[0028] Fig.12 for Fig.11 Enlarged structural diagram at C.

[0029] Fig.13 It is a partial schematic diagram of the cooling assembly in the present invention.

[0030] In the figure:

[0031] 1. Drying box; 2. First conveyor belt; 3. Second conveyor belt; 4. Hot air box; 5. Enlarged opening; 6. Diverter pipe; 7. Hot air pipe; 8. Rotating motor; 9. Rotating shaft; 10. Disc; 11. Side rod; 12. Sliding frame; 13. Sliding bar; 14. Rack; 15. Frame bar; 16. Gear; 17. Rotating rod; 18. Transfer plate; 19. Connecting bar; 20. Transmission bar; 21. Frame; 22. Enclosed cover; 23. Telescopic pipe; 24. Transmission pipe; 25. Processing box; 26. Activated carbon layer; 27. Fan; 28. Round rod; 29. ​​Guide plate; 30. Bottom plate; 31. Support plate; 32. Slide plate; 33. Vertical plate; 34. L-shaped plate; 35. Spring; 36. Connecting rod; 37. Long strip plate; 38. Vertical plate; 39. Guide frame; 40. Push plate; 41. First pulley; 42. Transmission belt; 43. Second pulley; 44. Fan blade; 45. Connecting plate; 46. Sleeve; 47. Support frame; 48. Cover plate; 49. Filter. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] Reference Figure 1-13 , a circulating drying device for processing lithium battery raw materials, comprising a drying box 1, a first conveyor belt 2 is fixedly connected to one side of the inner wall of the drying box 1, a second conveyor belt 3 is fixedly connected to the other side of the inner wall of the drying box 1, a hot air box 4 is fixedly connected to the top of the drying box 1, an enlarged opening 5 is fixedly connected to the bottom of the hot air box 4, a shunt pipe 6 is fixedly connected to the top of the hot air box 4, a hot air pipe 7 is fixedly connected to one side of the shunt pipe 6, and also includes a flipping component for flipping the electrode sheet, the flipping component is arranged at the center of the inner wall of the drying box 1, a purification component for treating exhaust gas is arranged on one side of the drying box 1, the purification component includes a transmission pipe 24, the transmission pipe 24 is fixedly connected to both sides of the drying box 1, an adjustment component for adjusting the direction of hot air is arranged inside the hot air box 4, and a cooling component for cooling the transmission pipe 24 is fixedly connected to the outer wall of the transmission pipe 24.

[0035] In order to solve the problem that it is inconvenient to dry the bottom of the electrode sheet, when the electrode sheet of the lithium battery needs to be dried, the electrode sheet of the lithium battery can be conveyed into the drying box 1 through the first conveyor belt 2, and then the hot air is transferred to the shunt pipe 6 through the hot air pipe 7, and then transferred to the two groups of hot air boxes 4 through the shunt pipe 6. The hot air in one group of hot air boxes 4 is blown downward to the top of the first conveyor belt 2, and the electrode sheet on the first conveyor belt 2 can be dried. When the electrode sheet on the first conveyor belt 2 is dried, the flipping component can be started to flip the electrode sheet on the first conveyor belt 2 to the second conveyor belt 3, so that the electrode sheet The bottom surface is flipped to the top surface, and the electrode sheet can be dried by the hot air blown out from another set of hot air boxes 4, so that both sides of the electrode sheet can be evenly dried. When the flipping component is running, the purification component can be driven to run, so that the exhaust gas generated by drying the lithium battery electrode sheet can be extracted and the exhaust gas can be purified. By setting an adjustment component, the blowing direction of the hot air blown out from the bottom of the hot air box 4 can be adjusted, so that the hot air can be evenly blown on the first conveyor belt 2 and the second conveyor belt 3. By setting a cooling component, the transmission pipe 24 can be cooled to prevent the temperature of the exhaust gas in the transmission pipe 24 from being too high to damage the purification component.

[0036] Reference Figure 3-6 The flip assembly includes a rotating motor 8, which is fixedly connected to one side of the drying box 1. The output end of the rotating motor 8 is fixedly connected to a rotating shaft 9, one end of the rotating shaft 9 is fixedly connected to a disc 10, and the side of the disc 10 away from the rotating shaft 9 is fixedly connected to a side rod 11, and the side of the drying box 1 close to the disc 10 is fixedly connected to a sliding frame 12, and the inner wall of the sliding frame 12 is slidably connected to a sliding bar 13, and one side of the sliding bar 13 is fixedly connected to a rack 14, and the rack 14 is far away from the rotating shaft 9. One end of the slide bar 13 is fixedly connected to a frame bar 15, the side bar 11 is slidably connected to the inner wall of the frame bar 15, the top end of the rack 14 is meshed with a gear 16, the center of the gear 16 is fixedly connected to a rotating rod 17, the end of the rotating rod 17 away from the gear 16 extends into the inner wall of the drying box 1, the outer wall of the rotating rod 17 is fixedly connected to a transfer plate 18, one side of the transfer plate 18 is provided with a placement groove, and the transfer plate 18 is arranged between the first conveyor belt 2 and the second conveyor belt 3.

[0037] When the electrode sheet needs to be flipped, the first conveyor belt 2 and the second conveyor belt 3 can be started to move the electrode sheet on the first conveyor belt 2 and the second conveyor belt 3 to one side, and the rotating motor 8 can be started at the same time. The rotating motor 8 drives the rotating shaft 9 on one side to rotate. When the rotating shaft 9 rotates, the disc 10 and the side rod 11 on one side will be driven to rotate. When the side rod 11 continues to rotate, the frame bar 15 will be pushed to move back and forth, and the frame bar 15 will drive the rack 14 and the slide bar 13 on one side to slide back and forth. The slide bar 13 slides in the slide frame 12, and the movement trajectory of the slide bar 13, the rack 14 and the frame bar 15 can be limited. When the rack 14 moves back and forth, it will drive the gear 16 meshing at the top to rotate. Since the rack 14 moves back and forth, the gear 16 will rotate back and forth. When the gear 16 rotates back and forth, it will drive the rotating rod 17 and the transfer plate 18 on one side to rotate back and forth together. When the end of the transfer plate 18 where the placement slot is set moves to the top of the first conveyor belt 2, a group of electrode sheets will be conveyed to the top of the transfer plate 18 through the first conveyor belt 2. When the transfer plate 18 flips to the top of the second conveyor belt 3, since the height of the second conveyor belt 3 is lower than the first conveyor belt 2, the electrode sheet can be well moved to the top of the second conveyor belt 3, and the electrode sheet can be turned over at the same time, so that the bottom surface of the original electrode sheet can be flipped to the top, which is beneficial to the drying of both sides of the electrode sheet.

[0038] Reference Figure 3 and Figure 7 The purification component also includes a connecting strip 19, which is fixedly connected to one side of the rack 14, and a transmission strip 20 is fixedly connected to one end of the connecting strip 19 away from the rack 14. A slide groove is provided at the top of the drying box 1, and one side of the top of the transmission strip 20 is slidably connected to the inner wall of the slide groove. A square frame 21 is fixedly connected to one side of the top of the transmission strip 20, and the square frame 21 is arranged at the top of the inner wall of the drying box 1. A sealed cover 22 is fixedly connected to the top of the drying box 1, and the top of the sealed cover 22 is fixedly connected to the top of the transmission strip 20. The sealed cover 22 is sleeved At the top of the slide, the material of the closed cover 22 is rubber, a telescopic tube 23 is fixedly connected to one side of the square frame 21, and the end of the telescopic tube 23 away from the square frame 21 is fixedly connected to one end of the transmission tube 24, and the end of the drying box 1 away from the rotating motor 8 is fixedly connected to the treatment box 25, and the end of the transmission tube 24 away from the telescopic tube 23 is fixedly connected to the top of the treatment box 25, and the inner wall of the treatment box 25 is fixedly connected to an activated carbon layer 26, and the other side of the inner wall of the treatment box 25 is fixedly connected to a fan 27, and a ventilation hole is opened on the side of the inner wall of the treatment box 25 close to the fan 27.

[0039] When the rack 14 reciprocates, it can drive the two sets of connecting bars 19 set at both ends to reciprocate together, and the connecting bars 19 can drive the transmission bar 20 and the square frame 21 to reciprocate together. When the square frame 21 moves, the rubber sealing cover 22 can be used to keep the slideway and the transmission bar 20 sealed, and then the fan 27 is turned on. The fan 27 can generate suction for the treatment box 25, the transmission pipe 24, the telescopic pipe 23 and the square frame 21, so that the exhaust gas around the square frame 21 can be sucked into the square frame 21, and the square frame 21 will move along with the transmission bar 2 0 reciprocates, thereby expanding the range of exhaust gas absorption, which is conducive to purifying more exhaust gas. When the square frame 21 reciprocates, the telescopic tube 23 can be used to maintain the connection between the inside of the square frame 21 and the transmission pipe 24, so that the exhaust gas is transmitted to the transmission pipe 24 through the telescopic tube 23, and the exhaust gas is transmitted to the treatment box 25 through the transmission pipe 24. Under the suction of the fan 27, the exhaust gas can pass through the multiple groups of activated carbon layers 26, so that the exhaust gas can be adsorbed by the multiple groups of activated carbon layers 26, and the purified air can be discharged through the ventilation holes.

[0040] Reference Figure 8-12 The adjustment assembly includes a round rod 28, which is rotatably connected to the inner wall of the hot air box 4. A guide plate 29 is fixedly connected to the bottom of the round rod 28. One end of the round rod 28 passes through the hot air box 4, and one end of the round rod 28 extending out of the hot air box 4 is fixedly connected to a bottom plate 30. The round rod 28, the guide plate 29 and the bottom plate 30 are all provided in multiple groups and are distributed in parallel to the inner wall of the hot air box 4. A support plate 31 is fixedly connected to the side of the hot air box 4 close to the bottom plate 30. A slide plate 32 is slidably connected to the top of the support plate 31. The cross-section of the slide plate 32 is square. Multiple groups of vertical plates 33 are fixedly connected to the top of the slide plate 32. The multiple groups of vertical plates 33 is arranged between multiple groups of bottom plates 30, the other side of the hot air box 4 is fixedly connected to an L-shaped plate 34, one side of the L-shaped plate 34 is fixedly connected to a spring 35, the spring 35 is fixedly connected to one end of the slide plate 32, the end of the slide plate 32 away from the spring 35 is fixedly connected to a connecting rod 36, the end of the connecting rod 36 away from the slide plate 32 is fixedly connected to a long strip plate 37, the outer wall of the rotating rod 17 is fixedly connected to a vertical plate 38, the top end of the inner wall of the drying box 1 is fixedly connected to a guide frame 39, the inner wall of the guide frame 39 is slidably connected to a push plate 40, the push plate 40 is arranged on one side of the vertical plate 38, and the push plate 40 is arranged between two groups of long strip plates 37.

[0041] When the rotating rod 17 flips back and forth, it can drive the vertical plate 38 provided on its outer wall to swing back and forth together. When the vertical plate 38 flips to one side, it can push the push plate 40 to move to one side. By providing a guide frame 39 at the top of the push plate 40, the push plate 40 can be guided by the guide frame 39 when the push plate 40 is pushed, so that the push plate 40 moves in a specified direction. When the push plate 40 moves to one side, it can push a group of long strips 37 to move. When the long strips 37 move to one side, they will push the connecting rod 36, the slide plate 32 and multiple groups of vertical plates 33 on one side to move to one side together. When the slide plate 32 moves, it will squeeze the spring 35. When the multiple groups of vertical plates 33 move to one side, they will drive the multiple groups of bottom plates 30 between the vertical plates 33 to deviate to one side. When the multiple groups of bottom plates 30 deviate to one side, they will drive the multiple groups of round rods 28 and the guide The plate 29 is offset together, thereby changing the direction of the hot air blown out from the bottom of the hot air box 4, and more electrode sheets can be dried until the vertical plate 38 flips to the other end of the push plate 40 and breaks away from the contact with the vertical plate 38, so that the spring 35 can be reset and push the slide plate 32, the vertical plate 33, the connecting rod 36 and the long strip plate 37 to reset together, so that the direction of the hot air can be reset. When the long strip plate 37 is reset, the push plate 40 will be pushed to the center of the guide frame 39. When the vertical plate 38 flips to the other side, the push plate 40 can be moved to the other side, so that the direction of the hot air in the other group of hot air boxes 4 can be adjusted. Through the continuous reciprocating swing of the rotating rod 17 and the vertical plate 38, it is beneficial to intermittently change the direction of the hot air on the first conveyor belt 2 and the second conveyor belt 3, which is beneficial to make the hot air blowing more even.

[0042] Reference Fig.13 The cooling component includes a first pulley 41, which is fixedly connected to the outer wall of the rotating shaft 9. The outer wall of the first pulley 41 is sleeved with a transmission belt 42, and the other end of the inner wall of the transmission belt 42 is sleeved with a second pulley 43. A fan blade 44 is fixedly connected to one side of the second pulley 43. A sleeve 46 is fixedly connected to the outer wall of the transmission tube 24. The fan blade 44 is arranged on one side of the sleeve 46. A connecting plate 45 is fixedly connected to one side of the sleeve 46. The second pulley 43 is rotatably connected to one side of the connecting plate 45. The cooling component is provided with two groups, which are symmetrically distributed on both sides of the drying box 1. The two groups of the first pulleys 41 are distributed in parallel on the outer wall of the rotating shaft 9.

[0043] When the rotating shaft 9 rotates, it can drive two groups of first pulleys 41 to rotate at the same time. When one group of first pulleys 41 rotates, it will drive the transmission belt 42 on the outer wall to rotate. When the transmission belt 42 rotates, it will drive the second pulley 43 on the inner wall to rotate. When the second pulley 43 rotates, it will drive the fan blades 44 to rotate. The wind force generated by the rotation of the fan blades 44 will blow into the sleeve 46. Since the sleeve 46 is sleeved on the outer wall of the transmission pipe 24, the transmission pipe 24 can be cooled by wind force, and the exhaust gas flowing in the transmission pipe 24 can be cooled to prevent the exhaust gas with too high temperature from damaging the activated carbon layer 26 and the fan 27. The two groups of first pulleys 41, transmission belts 42, second pulleys 43, fan blades 44 and sleeves 46 can cool the two groups of transmission pipes 24 at the same time.

[0044] Reference Figure 1 A support frame 47 is fixedly connected to one side of the drying box 1, and the support frame 47 is arranged at the bottom of the first conveyor belt 2. A cover plate 48 is rotatably connected to one side of the drying box 1 through a rotating shaft 9, and the cover plate 48 is arranged at the top of the support frame 47. Two groups of the support frame 47 and the cover plate 48 are provided, and are symmetrically distributed on both sides of the drying box 1.

[0045] By providing two sets of support frames 47 on both sides of the drying box 1, it is helpful to limit the two sides of the first conveyor belt 2 and the second conveyor belt 3. By providing a cover plate 48 on the top of the support frame 47, the support frame 47 can be closed by the cover plate 48 when the equipment is not in use, so as to prevent dust and impurities from falling on the first conveyor belt 2 and the second conveyor belt 3.

[0046] Reference Figure 3 A filter screen 49 is fixedly connected to the inner wall of the hot air duct 7 . The filter screens 49 are provided in three groups and are distributed in parallel on the inner wall of the hot air duct 7 .

[0047] By arranging three groups of filter screens 49 inside the hot air pipe 7, when the electrode sheet needs to be dried, the hot air can be filtered through the three groups of filter screens 49 to prevent impurities in the hot air from damaging the electrode sheet.

[0048] Working principle: In order to solve the problem that it is inconvenient to dry the bottom of the electrode sheet, when the electrode sheet of the lithium battery needs to be dried, the electrode sheet of the lithium battery can be conveyed into the drying box 1 through the first conveyor belt 2, and then the hot air is transferred to the shunt pipe 6 through the hot air pipe 7, and then transferred to the two groups of hot air boxes 4 through the shunt pipe 6. The hot air in one group of hot air boxes 4 blows downward to the top of the first conveyor belt 2, and the electrode sheet on the first conveyor belt 2 can be dried. When the electrode sheet on the first conveyor belt 2 is dried, the first conveyor belt 2 and the second conveyor belt 3 can be started to move the electrode sheets on the first conveyor belt 2 and the second conveyor belt 3 to one side, and the rotating motor 8 is started at the same time. The rotating motor 8 drives the rotating shaft 9 on one side to rotate. When the rotating shaft 9 rotates, it will drive the disc 10 and the side rod 11 on one side to rotate. When the side rod 11 continues to rotate, it will push the frame bar 15 to move back and forth, and the frame bar 15 will drive the rack 14 on one side. The slide bar 13 slides back and forth, and the slide bar 13 slides in the slide frame 12, which can limit the movement trajectory of the slide bar 13, the rack 14 and the frame bar 15. When the rack 14 moves back and forth, it will drive the gear 16 meshing at the top to rotate. Since the rack 14 moves back and forth, the gear 16 will rotate back and forth. When the gear 16 rotates back and forth, it will drive the rotating rod 17 on one side and the transfer plate 18 to rotate back and forth together. When one end of the transfer plate 18 where the placement groove is set moves to the top of the first conveyor belt 2, a group of electrode sheets will be transferred to the top of the transfer plate 18 through the first conveyor belt 2. When the transfer plate 18 is turned over to the top of the second conveyor belt 3, since the height of the second conveyor belt 3 is lower than the first conveyor belt 2, the electrode sheet can be well moved to the top of the second conveyor belt 3, and the electrode sheet can be turned over at the same time, so that the bottom surface of the original electrode sheet can be turned over to the top, which can be beneficial to drying both sides of the electrode sheet;

[0049] When the rack 14 reciprocates, it can drive the two sets of connecting bars 19 set at both ends to reciprocate together, and the connecting bars 19 can drive the transmission bar 20 and the square frame 21 to reciprocate together. When the square frame 21 moves, the rubber sealing cover 22 can be used to keep the slideway and the transmission bar 20 sealed, and then the fan 27 is turned on. The fan 27 can generate suction for the treatment box 25, the transmission pipe 24, the telescopic pipe 23 and the square frame 21, so that the exhaust gas around the square frame 21 can be sucked into the square frame 21, and the square frame 21 will move along with the transmission bar 2 0 reciprocates, thereby expanding the range of exhaust gas absorption, which is conducive to purifying more exhaust gas. When the square frame 21 reciprocates, the telescopic tube 23 can be used to maintain the connection between the inside of the square frame 21 and the transmission tube 24, so that the exhaust gas is transmitted to the transmission tube 24 through the telescopic tube 23, and the exhaust gas is transmitted to the treatment box 25 through the transmission tube 24. Under the suction of the fan 27, the exhaust gas can pass through the multiple groups of activated carbon layers 26, so that the exhaust gas can be adsorbed by the multiple groups of activated carbon layers 26, and the purified air can be discharged through the ventilation holes;

[0050] When the rotating rod 17 flips back and forth, it can drive the vertical plate 38 provided on its outer wall to swing back and forth together. When the vertical plate 38 flips to one side, it can push the push plate 40 to move to one side. By providing a guide frame 39 at the top of the push plate 40, the push plate 40 can be guided by the guide frame 39 when the push plate 40 is pushed, so that the push plate 40 moves in a specified direction. When the push plate 40 moves to one side, it can push a group of long strips 37 to move. When the long strips 37 move to one side, they will push the connecting rod 36, the slide plate 32 and multiple groups of vertical plates 33 on one side to move to one side together. When the slide plate 32 moves, it will squeeze the spring 35. When the multiple groups of vertical plates 33 move to one side, they will drive the multiple groups of bottom plates 30 between the vertical plates 33 to deviate to one side. When the multiple groups of bottom plates 30 deviate to one side, they will drive the multiple groups of round rods 28 and the guide The plate 29 is offset together, so that the direction of the hot air blown out from the bottom of the hot air box 4 can be changed, and more electrode sheets can be dried until the vertical plate 38 flips to the other end of the push plate 40 and breaks away from the contact with the vertical plate 38, so that the spring 35 can be reset and push the slide plate 32, the vertical plate 33, the connecting rod 36 and the long strip plate 37 to reset together, so that the direction of the hot air can be reset. When the long strip plate 37 is reset, the push plate 40 will be pushed to the center of the guide frame 39. When the vertical plate 38 flips to the other side, the push plate 40 can be moved to the other side, so that the direction of the hot air in the other group of hot air boxes 4 can be adjusted. Through the continuous reciprocating swing of the rotating rod 17 and the vertical plate 38, it is beneficial to intermittently change the direction of the hot air on the first conveyor belt 2 and the second conveyor belt 3, which is beneficial to make the hot air blow more evenly.

[0051] When the rotating shaft 9 rotates, the two groups of first pulleys 41 can be driven to rotate at the same time. When one group of first pulleys 41 rotates, the transmission belt 42 on the outer wall will be driven to rotate. When the transmission belt 42 rotates, it will drive the second pulley 43 on the inner wall to rotate. When the second pulley 43 rotates, it will drive the fan blades 44 to rotate. The wind force generated by the rotation of the fan blades 44 will blow into the sleeve 46. Since the sleeve 46 is sleeved on the outer wall of the transmission pipe 24, the transmission pipe 24 can be cooled by wind force, and the exhaust gas flowing in the transmission pipe 24 can be cooled to prevent the exhaust gas with excessive temperature from damaging the activated carbon layer 26 and the fan 27. The two groups of first pulleys 41, transmission belts 42, second pulleys 43, fan blades 44 and sleeves 46 can cool the two groups of transmission pipes 24 at the same time. When the equipment is used, the support frame 47 is closed by the cover plate 48 to prevent dust and impurities from falling on the first conveyor belt 2 and the second conveyor belt 3.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A circulating drying device for processing lithium battery raw materials, comprising a drying box (1), a first conveyor belt (2) is fixedly connected to one side of the inner wall of the drying box (1), a second conveyor belt (3) is fixedly connected to the other side of the inner wall of the drying box (1), a hot air box (4) is fixedly connected to the top of the drying box (1), an enlarged opening (5) is fixedly connected to the bottom of the hot air box (4), a shunt pipe (6) is fixedly connected to the top of the hot air box (4), and a hot air pipe (7) is fixedly connected to one side of the shunt pipe (6), characterized in that: The device also comprises a flipping assembly for flipping the electrode sheet, wherein the flipping assembly is arranged at the center of the inner wall of the drying box (1), and comprises a rotating motor (8), wherein the rotating motor (8) is fixedly connected to one side of the drying box (1), wherein the output end of the rotating motor (8) is fixedly connected to a rotating shaft (9), wherein one end of the rotating shaft (9) is fixedly connected to a disc (10), wherein a side of the disc (10) away from the rotating shaft (9) is fixedly connected to a side rod (11), wherein a side of the drying box (1) close to the disc (10) is fixedly connected to a sliding frame (12), wherein a sliding bar (13) is slidably connected to the inner wall of the sliding frame (12), wherein a rack (14) is fixedly connected to one side of the sliding bar (13), and wherein an end of the rack (14) away from the sliding bar (13) is fixedly connected to a frame bar (15). The side rod (11) is slidably connected to the inner wall of the frame bar (15), the top end of the rack (14) is meshed with a gear (16), the center of the gear (16) is fixedly connected to a rotating rod (17), the end of the rotating rod (17) away from the gear (16) extends into the inner wall of the drying box (1), the outer wall of the rotating rod (17) is fixedly connected to a transfer plate (18), one side of the transfer plate (18) is provided with a placement groove, the transfer plate (18) is arranged between the first conveyor belt (2) and the second conveyor belt (3), one side of the drying box (1) is provided with a purification component for treating waste gas, the purification component includes a transmission pipe (24), the transmission pipe (24) is fixedly connected to both sides of the drying box (1), and the purification component also includes a connecting strip (19), the connecting bar (19) is fixedly connected to one side of the rack (14), and the end of the connecting bar (19) away from the rack (14) is fixedly connected to a transmission bar (20), the top of the drying box (1) is provided with a slide groove, one side of the top of the transmission bar (20) is slidably connected to the inner wall of the slide groove, one side of the top of the transmission bar (20) is fixedly connected to a square frame (21), and the square frame (21) is arranged at the top of the inner wall of the drying box (1), the top of the drying box (1) is fixedly connected to a sealed cover (22), the top of the sealed cover (22) is fixedly connected to the top of the transmission bar (20), the sealed cover (22) is sleeved on the top of the slide groove, the sealed cover (22) is made of rubber, and one side of the square frame (21) is fixedly connected to a telescopic tube ( 23), one end of the telescopic tube (23) away from the square frame (21) is fixedly connected to one end of the transmission tube (24), one end of the drying box (1) away from the rotating motor (8) is fixedly connected to a treatment box (25), one end of the transmission tube (24) away from the telescopic tube (23) is fixedly connected to the top of the treatment box (25), an activated carbon layer (26) is fixedly connected to the inner wall of the treatment box (25), a fan (27) is fixedly connected to the other side of the inner wall of the treatment box (25), a ventilation hole is provided on the side of the inner wall of the treatment box (25) close to the fan (27), an adjustment component for adjusting the direction of hot air is arranged inside the hot air box (4), the adjustment component comprises a round rod (28), and the round rod (28) is rotatably connected to the inner wall of the hot air box (4),A guide plate (29) is fixedly connected to the bottom of the round rod (28); one end of the round rod (28) passes through the hot air box (4); one end of the round rod (28) extending out of the hot air box (4) is fixedly connected to a bottom plate (30); the round rod (28), the guide plate (29) and the bottom plate (30) are provided in multiple groups and are parallelly distributed on the inner wall of the hot air box (4); a support plate (31) is fixedly connected to one side of the hot air box (4) close to the bottom plate (30); a slide plate (32) is slidably connected to the top of the support plate (31); the cross section of the slide plate (32) is square; the top of the slide plate (32) is fixedly connected to multiple groups of vertical plates (33); the multiple groups of vertical plates (33) are arranged between the multiple groups of bottom plates (30); the other side of the hot air box (4) is fixedly connected to an L-shaped plate (34); ), a spring (35) is fixedly connected to one side of the L-shaped plate (34), the spring (35) is fixedly connected to one end of the slide plate (32), the end of the slide plate (32) away from the spring (35) is fixedly connected to a connecting rod (36), the end of the connecting rod (36) away from the slide plate (32) is fixedly connected to a long strip plate (37), the outer wall of the rotating rod (17) is fixedly connected to a vertical plate (38), the top end of the inner wall of the drying box (1) is fixedly connected to a guide frame (39), the inner wall of the guide frame (39) is slidably connected to a push plate (40), the push plate (40) is arranged on one side of the vertical plate (38), the push plate (40) is arranged between two groups of long strip plates (37), the outer wall of the transmission pipe (24) is fixedly connected to a cooling component for cooling the transmission pipe (24).

2. A circulating drying device for processing lithium battery raw materials according to claim 1, characterized in that: The cooling component comprises a first pulley (41), the first pulley (41) is fixedly connected to the outer wall of the rotating shaft (9), a transmission belt (42) is sleeved on the outer wall of the first pulley (41), the other end of the inner wall of the transmission belt (42) is sleeved on the second pulley (43), one side of the second pulley (43) is fixedly connected to a fan blade (44), the outer wall of the transmission tube (24) is fixedly connected to a sleeve (46), the fan blade (44) is arranged on one side of the sleeve (46), one side of the sleeve (46) is fixedly connected to a connecting plate (45), the second pulley (43) is rotatably connected to one side of the connecting plate (45), the cooling component is provided with two groups, and are symmetrically distributed on both sides of the drying box (1), and the two groups of the first pulleys (41) are distributed in parallel on the outer wall of the rotating shaft (9).

3. A circulating drying device for processing lithium battery raw materials according to claim 2, characterized in that: A support frame (47) is fixedly connected to one side of the drying box (1), and the support frame (47) is arranged at the bottom of the first conveyor belt (2). A cover plate (48) is rotatably connected to one side of the drying box (1) via a rotating shaft (9), and the cover plate (48) is arranged at the top of the support frame (47). Two groups of the support frame (47) and the cover plate (48) are provided, and are symmetrically distributed on both sides of the drying box (1).

4. A circulating drying device for processing lithium battery raw materials according to claim 3, characterized in that: A filter screen (49) is fixedly connected to the inner wall of the hot air pipe (7), and three groups of the filter screens (49) are arranged and are distributed in parallel on the inner wall of the hot air pipe (7).

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