Drying device for lithium battery material

Abstract

The invention discloses a drying device for a lithium battery material. The drying device structurally comprises a drying box, a servo motor is fixedly installed on one side of the drying box, a turning rod is installed at the output end of the servo motor, an air heater is fixedly installed on one side of the drying box, a speed reduction assembly is arranged at the upper end of the drying box, and a circulation assembly is arranged on one side of the drying box. According to the lithium battery material drying device, a lithium battery material in the drying box can be turned over through a turning rod, so that the lithium battery material can be dried, dust impurities doped in hot air flow can be filtered again through a second filter screen in the treatment box, and then the treated hot air flow is discharged into an air heater; and therefore, the working energy consumption of an air heater is reduced, the effect of circulating hot air flow is achieved, the drying efficiency of the lithium battery material is improved, the flow speed of the hot air flow can be reduced, the hot air flow is slowly discharged into the treatment box, and the filtering efficiency of a second filter screen on the hot air flow is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of drying lithium battery materials, and in particular to a drying device for lithium battery materials. Background Art

[0002] With the booming development of new energy vehicles, portable electronic devices, energy storage systems and other fields, the market demand for lithium batteries as key energy storage devices has grown dramatically. As a key factor in battery performance, the quality of lithium battery materials directly affects the overall performance and service life of the battery. Due to the increasing requirements for material performance: in order to improve the energy density, cycle life and safety performance of lithium batteries, lithium battery materials need to be dried. Drying can remove moisture from lithium battery materials and improve the purity and stability of materials.

[0003] After searching, the publication number is (CN116878226A), which discloses a drying device for lithium battery materials, including an outer box body, an inner box body, a driving member, a lifting mechanism, a bearing mechanism, a heating mechanism and a ventilation mechanism, wherein: the outer box body is a hollow box-like structure with an opening on the lower surface, and the inner box body is a hollow box-like structure with an opening on the upper surface. The outer box body is sleeved on the outer surface of the inner box body, and the outer box body is used to seal the inner box body. The outer box body is vertically lifted and lowered on the outer surface of the inner box body by the lifting mechanism, and the driving member is used to drive the lifting mechanism to operate. The bearing mechanism and the heating mechanism are both arranged inside the inner box body, and the heating mechanism is arranged on the periphery of the bearing mechanism. The bearing mechanism is used to place and bear the drying mold, and the heating mechanism is used to heat the dried material. The ventilation mechanism is arranged on the inner box body, and the ventilation mechanism is used to assist in heat dissipation of the inner box body.

[0004] When implementing this technical solution, there are at least the following defects: although this invention can reduce the risk of burns to workers, it is inconvenient to circulate the exhausted hot air during the drying process, resulting in heat loss and waste, and the dust in the lithium battery material will be discharged into the working environment to cause pollution. It is also inconvenient to clean the dust attached to the vicinity of the circulation pipe mouth, resulting in a decrease in circulation efficiency, which in turn affects the drying efficiency of the lithium battery material. Improvement is urgently needed. Therefore, we propose a drying device for lithium battery materials. Summary of the invention

[0005] The purpose of the present invention is to provide a drying device for lithium battery materials, which solves the problem proposed in the background technology that it is inconvenient to circulate the exhausted hot air during the drying process, resulting in heat loss and waste, and the dust in the lithium battery materials will be discharged into the working environment to cause pollution. It is also inconvenient to clean the dust attached to the vicinity of the circulation pipe mouth, resulting in a decrease in the circulation efficiency, thereby affecting the drying efficiency of the lithium battery materials.

[0006] To achieve the above object, the present invention provides the following technical solutions: a drying device for lithium battery materials, comprising a drying box, a servo motor is fixedly installed on one side of the drying box, a flip rod is installed on the output end of the servo motor, a hot air blower is fixedly installed on one side of the drying box, a speed reduction component is arranged at the upper end of the drying box, and a circulation component is arranged on one side of the drying box;

[0007] The deceleration assembly includes a deceleration box, a blade rod, a cam rod, a fixing strip, a rubber strip, a third filter screen, a straight plate, a straight rod, a first brush strip, a connecting rod and a second brush strip. The upper end of the drying box is provided with a deceleration box, the inner cavity of the deceleration box is rotatably mounted with a blade rod through a bearing, the lower end of the blade rod is provided with a cam rod, the upper end of the drying box is provided with a straight plate, one side of the straight plate is welded with a straight rod, one end of the straight rod is detachably mounted with a first brush strip, both sides of the upper end of the first brush strip are welded with connecting rods, and the other end of the connecting rod is fixedly mounted with a second brush strip;

[0008] The circulation component includes an exhaust fan, a first delivery pipe, a second delivery pipe, a processing box, a second filter and a third delivery pipe. The processing box is fixedly installed on one side of the drying box, and the exhaust fan is fixedly installed on the upper end of the other side of the drying box. The output end of the exhaust fan is connected to the first delivery pipe, and the second filter is detachably installed on the lower end of the inner cavity of the processing box.

[0009] By adopting the above technical scheme, the flipping rod can flip the lithium battery material in the drying box, and then cooperate with the discharged hot air flow to dry the lithium battery material, and the dust impurities mixed in the hot air flow can be filtered again through the second filter in the processing box, and then the treated hot air flow is discharged into the hot air blower, thereby reducing the working energy consumption of the hot air blower, achieving the effect of hot air flow circulation, and thus improving the drying efficiency of the lithium battery material. In the process of the hot air flow being discharged into the reduction box, the flow rate of the hot air flow can be reduced, so that the hot air flow is slowly discharged into the processing box, thereby ensuring the filtering efficiency of the second filter on the hot air flow, and During the rotation of the fan blade rod, the straight plate can be moved to the left, and the straight plate drives the first brush bar on the straight rod to move along, so that the first brush bar cooperates with the second brush bar to clean the upper surface of the second filter, thereby reducing the situation where a large amount of impurities accumulate and affect the filtering effect, thereby improving the circulation efficiency of the drying hot air flow; during the rotation of the fan blade rod, the rubber strip on the fixed strip can scrape and clean the first filter, thereby reducing the possibility of blockage of the first filter; the air quality sensor can also be used to monitor the air at the lower end of the processing box, thereby reminding the staff to replace the second filter in time, thereby improving the drying efficiency of the lithium battery material.

[0010] As a preferred embodiment of the present invention, the deceleration assembly also includes a cleaning piece, which includes a fixing strip arranged at the lower end of the fan blade rod, a rubber strip is detachably installed on the upper end of the fixing strip, and a third filter is detachably installed at the input end of the exhaust fan, and the upper end of the rubber strip is in contact with the lower end of the third filter.

[0011] By adopting the above technical solution and setting the third filter, the material particles generated by the tumbling of lithium battery materials in the drying box can be blocked, thereby reducing the situation where the lithium battery material particles block the exhaust fan.

[0012] As a preferred embodiment of the present invention, the size of the first brush strip is the same as the size of the second brush strip, and the length of the first brush strip is matched with the length of the second filter screen.

[0013] By adopting the above technical solution, the first brush bar and the second brush bar cooperate with each other, so that the upper surface of the second filter screen can be cleaned in sections, thereby reducing the clogging of the second filter screen.

[0014] As a preferred embodiment of the present invention, the other end of the first delivery pipe is connected to the air inlet end of the reduction box, the air outlet end of the reduction box is connected to the second delivery pipe, the other end of the second delivery pipe is connected to the air inlet end of the processing box, the lower air outlet end of the processing box is connected to the third delivery pipe, and the other end of the third delivery pipe is connected to the air inlet end of the hot air blower.

[0015] By adopting the above technical solution, the hot air flow generated by drying can be circulated through the cooperation of the first conveying pipe, the second conveying pipe and the third conveying pipe, thereby improving the drying efficiency of the lithium battery material.

[0016] As a preferred embodiment of the present invention, a return spring is sleeved on the outer wall of the straight rod, and the other end of the return spring is fixedly connected to the outer side of the processing box.

[0017] By adopting the above technical solution and setting the reset spring, the straight plate can be driven to reset, so that the first brush strip and the second brush strip can move back and forth.

[0018] As a preferred embodiment of the present invention, an air quality sensor is detachably mounted on one side of the lower end of the inner cavity of the processing box, and a signal output end of the air quality sensor is connected to a signal input end of a PLC controller.

[0019] By adopting the above technical solution, through the cooperation of the air quality sensor and the PLC controller, the staff can be intelligently reminded to replace the second filter in time.

[0020] As a preferred embodiment of the present invention, a door is rotatably mounted on the front side of the drying box via hinges, and inspection doors are provided at the front ends of the reduction box and the processing box.

[0021] By adopting the above technical solution and setting the box door, the dried lithium battery materials can be taken out.

[0022] As a preferred embodiment of the present invention, a plurality of blades are arranged on the outer side of the flip rod, and the blades are distributed in a ring shape, and a first filter is detachably installed on the air outlet end of the hot air blower.

[0023] By adopting the above technical solution and setting the turning rod, the lithium battery material inside the drying box can be turned over, thereby improving the drying efficiency of the lithium battery material.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a drying box, a servo motor, a hot air blower, a processing box, a first brush bar, a second brush bar and a return spring, so that the flipping rod can flip the lithium battery material in the drying box, and then cooperate with the discharged hot air flow to dry the lithium battery material, and can also use the second filter net in the processing box to filter the dust and impurities mixed in the hot air flow again, and then discharge the treated hot air flow into the hot air blower, thereby reducing the working energy consumption of the hot air blower, achieving the effect of hot air flow circulation, and thus improving the drying efficiency of the lithium battery material.

[0026] In the process of the hot air flow being discharged into the reduction box, the flow velocity of the hot air flow can be reduced, so that the hot air flow is slowly discharged into the processing box, thereby ensuring the filtering efficiency of the second filter screen on the hot air flow; in the process of the fan blade rod rotating, the straight plate can be moved to the left, and the straight plate drives the first brush bar on the straight rod to move with it, so that the first brush bar cooperates with the second brush bar to clean the upper surface of the second filter screen, thereby reducing the situation where a large amount of impurities accumulate and affect the filtering effect, thereby improving the circulation efficiency of the drying hot air flow.

[0027] During the rotation of the fan blade rod, the rubber strip on the fixed strip can scrape and clean the first filter, thereby reducing the possibility of clogging of the first filter. The air at the lower end of the processing box can also be monitored through an air quality sensor to remind the staff to replace the second filter in time, thereby improving the drying efficiency of the lithium battery material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a drying device for lithium battery materials of the present invention;

[0030] Figure 2 This is a schematic diagram of the front cross-sectional structure of a drying device for lithium battery materials of the present invention;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of a fan blade rod and a first brush strip of a drying device for lithium battery materials of the present invention;

[0032] Figure 4 This is a partial enlarged view of location A of a drying device for lithium battery materials of the present invention;

[0033] Figure 5 This is a partial enlarged view of location B of a drying device for lithium battery materials of the present invention.

[0034] In the figure: 1. Drying box; 11. Servo motor; 12. Flip rod; 13. Hot air blower; 14. First filter; 2. Reducer; 21. Exhaust fan; 22. First conveying pipe; 23. Second conveying pipe; 24. Processing box; 25. Second filter; 26. Third conveying pipe; 3. Fan rod; 31. Cam rod; 32. Fixed strip; 33. Rubber strip; 34. Third filter; 35. Straight plate; 36. Straight rod; 37. First brush strip; 38. Connecting rod; 39. Second brush strip; 4. Reset spring; 5. Air quality sensor; 6. Box door. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] See also Figure 1-Figure 5The present invention provides a technical solution: a drying device for lithium battery materials, comprising a drying box 1, a servo motor 11 is fixedly installed on one side of the drying box 1, a flip rod 12 is installed on the output end of the servo motor 11, a hot air blower 13 is fixedly installed on one side of the drying box 1, a reduction assembly is arranged at the upper end of the drying box 1, a circulation assembly is arranged at one side of the drying box 1, the reduction assembly comprises a reduction box 2, a blade rod 3, a cam rod 31, a fixing strip 32, a rubber strip 33, a third filter screen 34, a straight plate 35, a straight rod 36, a first brush strip 37, a connecting rod 38 and a second brush strip 39, a reduction box 2 is arranged at the upper end of the drying box 1, a blade rod 3 is rotatably installed on the inner cavity of the reduction box 2 through a bearing, and a blade rod 3 is arranged at the lower end of the blade rod 3 A cam rod 31 is provided, a straight plate 35 is provided at the upper end of the drying box 1, a straight rod 36 is welded to one side of the straight plate 35, a first brush strip 37 is detachably installed at one end of the straight rod 36, connecting rods 38 are welded to both sides of the upper end of the first brush strip 37, and a second brush strip 39 is fixedly installed at the other end of the connecting rod 38. The circulation component includes an exhaust fan 21, a first conveying pipe 22, a second conveying pipe 23, a processing box 24, a second filter screen 25 and a third conveying pipe 26. The processing box 24 is fixedly installed on one side of the drying box 1, and the exhaust fan 21 is fixedly installed on the upper end of the other side of the drying box 1. The output end of the exhaust fan 21 is connected to the first conveying pipe 22, and the lower end of the inner cavity of the processing box 24 is detachably installed with the second filter screen 25.

[0038] In the present invention, when drying, the exhaust fan 21 and the hot air blower 13 are first turned on, and the hot air blower 13 discharges the hot air flow into the drying box 1, and then the servo motor 11 is turned on, and the servo motor 11 drives the flipping rod 12 to rotate, and the flipping rod 12 flips the lithium battery material in the drying box 1, and then cooperates with the discharged hot air flow, so that the lithium battery material can be dried. At the same time, the exhaust fan 21 extracts the hot air flow generated by drying and discharges it into the reduction box 2. The hot air flow is discharged into the reduction box 2, and then discharged into the processing box 24 through the second conveying pipe 23, and then through the processing box 2 The second filter 25 in the hot air flow 4 filters the dust and impurities mixed in the hot air flow again, and then discharges the treated hot air flow into the hot air blower 13, thereby reducing the working energy consumption of the hot air blower 13, playing the effect of circulating the hot air flow, and thus improving the drying efficiency of the lithium battery material. At the same time, when the hot air flow is discharged into the reduction box 2, the hot air flow will push the fan blade rod 3. Conversely, due to the work done by the hot air flow, the flow rate of the hot air flow will be reduced, so that the hot air flow is slowly discharged into the processing box 24, thereby ensuring the filtering effect of the second filter 25 on the hot air flow. The blade rod 3 rotates at a constant rate, and the blade rod 3 drives the cam rod 31 to rotate during the rotation of the blade rod 3. The cam rod 31 continuously pushes the straight plate 35 to move the straight plate 35 to the left. The straight plate 35 drives the first brush strip 37 on the straight rod 36 to follow the movement, so that the first brush strip 37 cooperates with the second brush strip 39 to clean the upper surface of the second filter screen 25, thereby reducing the situation where a large amount of impurities accumulate and affect the filtering effect, thereby improving the circulation efficiency of the drying hot air flow, and during the rotation of the blade rod 3, the fixed strip 32 at the lower end of the blade rod 3 will follow the movement, The rubber strip 33 on the fixing strip 32 scrapes and cleans the first filter 14, thereby reducing the possibility of blockage of the first filter 14 and facilitating the discharge of hot air into the reduction box 2. At the same time, the air at the lower end of the processing box 24 is monitored by the air quality sensor 5. When the air quality sensor 5 detects that the air quality has decreased, the air quality sensor 5 transmits a signal to the PLC controller, and the PLC controller reminds the staff to replace the second filter 25 in time, thereby improving the drying efficiency of the lithium battery material.

[0039] In an optional embodiment, the deceleration assembly also includes a cleaning piece, which includes a fixing strip 32 arranged at the lower end of the blade rod 3, a rubber strip 33 is detachably installed on the upper end of the fixing strip 32, and a third filter screen 34 is detachably installed on the input end of the exhaust fan 21, and the upper end of the rubber strip 33 is in contact with the lower end of the third filter screen 34.

[0040] It should be noted that, by providing the third filter 34 , the material particles generated by tumbling the lithium battery material in the drying box 1 can be blocked, thereby reducing the possibility of the lithium battery material particles clogging the exhaust fan 21 .

[0041] In an optional embodiment, the size of the first brush strip 37 is the same as the size of the second brush strip 39 , and the length of the first brush strip 37 is matched with the length of the second filter screen 25 .

[0042] It should be noted that, by cooperating with the first brush strip 37 and the second brush strip 39 , the upper surface of the second filter screen 25 can be cleaned in sections, thereby reducing the possibility of clogging of the second filter screen 25 .

[0043] In an optional embodiment, the other end of the first delivery pipe 22 is connected to the air inlet end of the reduction gearbox 2, the air outlet end of the reduction gearbox 2 is connected to the second delivery pipe 23, the other end of the second delivery pipe 23 is connected to the air inlet end of the processing box 24, the lower air outlet end of the processing box 24 is connected to the third delivery pipe 26, and the other end of the third delivery pipe 26 is connected to the air inlet end of the hot air blower 13.

[0044] It should be noted that, through the cooperation of the first conveying pipe 22, the second conveying pipe 23 and the third conveying pipe 26, the hot air flow generated by drying can be circulated, thereby improving the drying efficiency of the lithium battery material.

[0045] In an optional embodiment, a return spring 4 is sleeved on the outer wall of the straight rod 36 , and the other end of the return spring 4 is fixedly connected to the outer side of the processing box 24 .

[0046] It should be noted that, by providing the reset spring 4, the straight plate 35 can be driven to reset, so that the first brush strip 37 and the second brush strip 39 can move back and forth.

[0047] In an optional embodiment, an air quality sensor 5 is detachably mounted on one side of the lower end of the inner cavity of the processing box 24, and a signal output end of the air quality sensor 5 is connected to a signal input end of the PLC controller.

[0048] It should be noted that, by cooperating with the air quality sensor 5 and the PLC controller, the staff can be intelligently reminded to replace the second filter 25 in time.

[0049] In an optional embodiment, a door 6 is installed on the front side of the drying box 1 by means of hinges, and inspection doors are provided at the front ends of the reduction box 2 and the processing box 24 .

[0050] It should be noted that, by providing the box door 6, the dried lithium battery material can be taken out.

[0051] In an optional embodiment, a plurality of blades are disposed on the outer side of the flip rod 12 , and the blades are distributed in a ring shape, and a first filter screen 14 is detachably mounted on the air outlet end of the hot air blower 13 .

[0052] It should be noted that, by providing the turning rod 12 , the lithium battery material inside the drying box 1 can be turned over, thereby improving the drying efficiency of the lithium battery material.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A drying device for lithium battery materials, comprising a drying box (1), characterized in that: A servo motor (11) is fixedly mounted on one side of the drying box (1), a flipping rod (12) is mounted on the output end of the servo motor (11), a hot air blower (13) is fixedly mounted on one side of the drying box (1), a speed reduction assembly is disposed at the upper end of the drying box (1), and a circulation assembly is disposed on one side of the drying box (1); The deceleration assembly comprises a deceleration box (2), a blade rod (3), a cam rod (31), a fixing strip (32), a rubber strip (33), a third filter screen (34), a straight plate (35), a straight rod (36), a first brush strip (37), a connecting rod (38) and a second brush strip (39); the upper end of the drying box (1) is provided with a deceleration box (2); the inner cavity of the deceleration box (2) is rotatably mounted with the blade rod (3) through a bearing; the lower end of the blade rod (3) is provided with a cam rod (31); the upper end of the drying box (1) is provided with a straight plate (35); a straight rod (36) is welded to one side of the straight plate (35); a first brush strip (37) is detachably mounted on one end of the straight rod (36); connecting rods (38) are welded to both sides of the upper end of the first brush strip (37); and the other end of the connecting rod (38) is fixedly mounted with a second brush strip (39); The circulation component comprises an exhaust fan (21), a first conveying pipe (22), a second conveying pipe (23), a processing box (24), a second filter (25) and a third conveying pipe (26); the processing box (24) is fixedly mounted on one side of the drying box (1); the exhaust fan (21) is fixedly mounted on the upper end of the other side of the drying box (1); the output end of the exhaust fan (21) is connected to the first conveying pipe (22); and the second filter (25) is detachably mounted on the lower end of the inner cavity of the processing box (24).

2. A drying device for lithium battery materials according to claim 1, characterized in that: The deceleration assembly also includes a cleaning piece, which includes a fixing strip (32) arranged at the lower end of the fan blade rod (3), and a rubber strip (33) is detachably mounted on the upper end of the fixing strip (32). A third filter (34) is detachably mounted on the input end of the exhaust fan (21), and the upper end of the rubber strip (33) is in contact with the lower end of the third filter (34).

3. A drying device for lithium battery materials according to claim 1, characterized in that: The size of the first brush strip (37) is the same as that of the second brush strip (39), and the length of the first brush strip (37) is matched with the length of the second filter screen (25).

4. A drying device for lithium battery materials according to claim 1, characterized in that: The other end of the first delivery pipe (22) is connected to the air inlet end of the reduction box (2), the air outlet end of the reduction box (2) is connected to the second delivery pipe (23), the other end of the second delivery pipe (23) is connected to the air inlet end of the processing box (24), the lower air outlet end of the processing box (24) is connected to the third delivery pipe (26), and the other end of the third delivery pipe (26) is connected to the air inlet end of the hot air blower (13).

5. A drying device for lithium battery materials according to claim 1, characterized in that: A return spring (4) is sleeved on the outer wall of the straight rod (36), and the other end of the return spring (4) is fixedly connected to the outer side of the processing box (24).

6. A drying device for lithium battery materials according to claim 1, characterized in that: An air quality sensor (5) is detachably mounted on one side of the lower end of the inner cavity of the processing box (24), and a signal output end of the air quality sensor (5) is connected to a signal input end of a PLC controller.

7. A drying device for lithium battery materials according to claim 1, characterized in that: The front side of the drying box (1) is provided with a box door (6) which is rotatably mounted via hinges, and the front ends of the reduction box (2) and the processing box (24) are both provided with inspection doors.

8. The drying device for lithium battery materials according to claim 1, characterized in that: The outer side of the flip rod (12) is provided with a plurality of blades, and the blades are distributed in a ring shape. The air outlet end of the hot air blower (13) is detachably provided with a first filter screen (14).

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