Positive and negative electrode material filtering and separating device

Abstract

The invention relates to the field of battery processing, in particular to a positive and negative electrode material filtering and separating device. Comprising a support, a cover disc fixedly connected with the upper end of the support and a liquid collecting cylinder fixedly connected with the lower portion of the support. The upper end of the liquid collecting cylinder is fixedly connected with a bottom sleeve. The upper end of the bottom sleeve is fixedly connected with a material collecting cover. A lifting cylinder is slidably arranged on the side, close to the circle center, of the liquid collecting cylinder 3. The lifting cylinder moves through a screw lifting mechanism, a limiting cylinder is arranged at the upper end of the liquid collecting cylinder and is in key connection with the flow guide pipe, a filter cylinder is coaxially arranged on the side, close to the circle center, of the lifting cylinder, and a dewatering mechanism is arranged at the upper end of the filter cylinder; the dewatering mechanism comprises an air pump fixedly connected with the upper end of the support and an air pipe connected with the output end of the air pump through a hose, the air pipe is adjustably connected with the cover disc, and the dewatering mechanism drives the filter cartridge to rotate when the air pump runs. Compared with a traditional device, the device has the advantages that the filtering and separating effect and speed are enhanced, and the product quality is further improved.

Description

Technical Field

[0001] The present invention relates to the field of battery processing, and specifically to a device for filtering and separating positive and negative electrode materials. Background Art

[0002] In the fields of battery production, recycling, and related material processing, the filtration and separation of positive and negative electrode materials is a crucial step. Traditional methods and devices for filtering and separating positive and negative electrode materials have many problems, which restrict the improvement of production efficiency and product quality.

[0003] Early filtration and separation methods mainly relied on simple gravity filtration. This method is inefficient, and for some fine-particle positive and negative electrode materials, the filtration effect is not good, easily causing waste of materials and incomplete separation. Moreover, during the solid-liquid separation process, effective control of the solution and solid materials cannot be achieved, resulting in insufficient reactions and affecting the performance of subsequent materials.

[0004] With the development of technology, some mechanical filtration devices began to appear, but these devices often have complex structures and inconvenient operations. For example, when some devices perform solid-liquid separation, they cannot achieve precise coordination between the filter cylinder and the lifting cylinder well, resulting in incomplete separation of the solution and solid materials, increasing the difficulty of subsequent processing. At the same time, in the dehydration link, traditional devices cannot effectively control the airflow and air pressure, making the dehydration effect of solid materials not ideal, and the residual solution will have a negative impact on the purity and performance of the materials.

[0005] In addition, some existing filtration and separation devices lack automatic control and require frequent manual intervention. This not only increases labor costs but also easily leads to operation errors, affecting the stability and consistency of production. Moreover, in terms of material collection, traditional devices cannot achieve automatic collection of solid materials well, resulting in untimely material collection, causing environmental pollution and resource waste.

[0006] Therefore, it is of great practical significance to develop a device for filtering and separating positive and negative electrode materials with high efficiency, reliability, and high automation. Summary of the Invention

[0007] Based on this, it is necessary to provide a device for filtering and separating positive and negative electrode materials in view of the problems of the prior art.

[0008] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: A device for filtering and separating positive and negative electrode materials, including a bracket and a cover plate fixedly connected to the upper end of the bracket, and further including: The liquid collecting cylinder is fixedly connected to the lower part of the bracket. A bottom sleeve is arranged at the upper end of the liquid collecting cylinder. An aggregate collecting cover is fixedly connected to the upper end of the bottom sleeve. A lifting cylinder is slidably arranged coaxially on one side of the liquid collecting cylinder close to the center of the circle. A diversion pipe is fixedly connected to the middle of the lifting cylinder. A drainage mechanism for controlling the flow of the solution is arranged at the lower part of the lifting cylinder. The lifting cylinder realizes vertical movement through a screw lifting mechanism. A limiting cylinder arranged coaxially with the bottom sleeve is arranged at the upper end of the liquid collecting cylinder. The limiting cylinder is key-connected to the diversion pipe. A filter cylinder is arranged coaxially on one side of the lifting cylinder close to the center of the circle. A dehydration mechanism is arranged at the upper end of the filter cylinder. The dehydration mechanism includes an air pump fixedly connected to the upper end of the bracket and an air pipe connected to the output end of the air pump through a hose. The air pipe is adjustably connected to the cover plate. When the air pump operates, the dehydration mechanism drives the filter cylinder to rotate.

[0009] Further, a filter screen is fixedly connected to the lower end of the filter cylinder. A plurality of discharge holes are formed in the lower part of the filter cylinder in an equiangular array along the circumferential direction.

[0010] Further, the screw lifting mechanism further includes an adapter ring, two main motors, two first bevel gears, two second bevel gears, two auxiliary screws and two auxiliary screw sleeves. The adapter ring is key-connected to the inner wall of the bottom sleeve. The adapter ring is fixedly connected to the lower end of the lifting cylinder. The two auxiliary screw sleeves are respectively fixedly connected to the adapter ring. The two auxiliary screws are respectively threadedly connected to the two auxiliary screw sleeves. The upper end of the auxiliary screw is rotatably connected to the aggregate collecting cover, and the lower end is rotatably connected to the bracket. The two second bevel gears are respectively rotatably arranged on one side of the bottom sleeve close to the center of the circle through bevel gear frames. The second bevel gear is coaxially fixedly connected to the lower end of the auxiliary screw. The first bevel gear is rotatably connected to the bevel gear frame and meshes with the second bevel gear. The two main motors are respectively fixedly connected to the outer wall of the bottom sleeve and the output ends are fixedly connected to the first bevel gears.

[0011] Further, the drainage mechanism includes a top plate and a bottom plate. The top plate is coaxially fixedly connected to the lifting cylinder. The bottom plate is coaxially and adjustably connected to the lower end of the top plate. A plurality of liquid leakage holes are formed in the top plate in an equiangular array along the circumferential direction. A plurality of drainage ports are formed in the bottom plate in an equiangular array along the circumferential direction. The number of the plurality of liquid leakage holes is the same as that of the plurality of drainage ports.

[0012] Further, the drainage mechanism further includes a bottom gear ring, a bottom ring, a limit ring frame, two bottom gears, two tooth seats, two secondary bevel gears, two primary bevel gears, two pressing gears, two pressing racks, two return springs and two limit pins. The bottom ring is slidably connected to the lower end of the lifting cylinder. The two limit pins are respectively arranged on one side of the lifting cylinder close to the center of the circle. The upper end of the limit pin is fixedly connected to the top disc, and the lower end is slidably connected to the bottom ring. The return spring is sleeved outside the limit pin. The upper end of the return spring is fixedly connected to the top disc, and the lower end is fixedly connected to the bottom ring. The pressing rack is arranged beside the limit pin and fixedly connected to the bottom ring. The tooth seat is arranged beside the pressing rack and fixedly connected to the top disc. The pressing gear meshes with the pressing rack and is rotatably connected to the tooth seat. The primary bevel gear is rotatably connected to the tooth seat and coaxially fixedly connected to the pressing gear. The secondary bevel gear is rotatably connected to the tooth seat and meshes with the primary bevel gear. The bottom gear is rotatably connected to the tooth seat and coaxially fixedly connected to the secondary bevel gear. The bottom gear ring is coaxially fixedly connected to the chassis and meshes with the bottom gear. The limit ring frame is sleeved outside the diversion pipe and fixedly connected to the diversion pipe. The limit ring frame is fixedly connected to the tooth seat.

[0013] Further, the dehydration mechanism includes a secondary motor, a secondary gear and a secondary gear ring. The secondary motor is fixedly connected to the upper end of the bracket. The secondary gear is coaxially fixedly connected to the output end of the secondary motor. The secondary gear ring is fixedly connected to the upper end of the filter cylinder.

[0014] Further, a one-way air valve is fixedly connected to the lower end of the air pipe. The one-way air valve ensures that air cannot flow back from the lifting cylinder into the air pipe.

[0015] Further, the dehydration mechanism further includes a sliding seat, a limit frame and an electric push rod. The sliding seat is fixedly connected to the air pipe. The limit frame is fixedly connected to the upper end of the cover plate. The sliding seat is slidably connected to the limit frame. The electric push rod is arranged beside the limit frame. The fixed end of the electric push rod is fixedly connected to the cover plate, and the movable end is fixedly connected to the sliding seat.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: First: The device realizes the precise vertical movement of the lifting cylinder through the screw lifting mechanism, can accurately control the relative position between the filter cylinder and the lifting cylinder, and adopts the method of injecting gas to improve the filtering effect during the solid-liquid separation process, greatly improving the efficiency and effect of solid-liquid separation, reducing the residue of the solution in the solid material, and improving the quality of subsequent material treatment; Second: The device adopts a dehydration mechanism to realize the self-rotation of the filter cylinder. During the reaction stage, the self-rotation of the filter cylinder promotes the full mixing of the solution and the solid material, speeds up the reaction rate, and improves the sufficiency of the reaction. During the separation stage, the rotating filter cylinder can throw the solid material to the edge and discharge it through the discharge holes, realizing the automatic collection of the solid material. In addition, the air pump injects air through the air pipe to increase the air pressure in the filter cylinder, further improving the reaction rate and dehydration effect. Moreover, the movable design of the air pipe can adjust the position according to different reaction and dehydration requirements, enhancing the applicability and flexibility of the device; Thirdly: This device has a high degree of automation. From the pouring of materials, reaction, solid-liquid separation to the collection and drying of solid materials, each link can be automatically controlled by devices such as motors, air pumps, and electric push rods. Operators only need to perform simple operations to complete the entire filtration and separation process, reducing manual intervention and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the embodiment; Figure 2 is a front view of the embodiment; Figure 3 is a plane half-sectional view of the embodiment; Figure 4 is a three-dimensional half-sectional view of the embodiment; Figure 5 is Figure 4 an enlarged view of the structure at A in Figure 6 is a three-dimensional structural schematic diagram of the auxiliary motor in the embodiment; Figure 7 is a partial structural schematic diagram of the drainage mechanism in the embodiment; Figure 8 is a three-dimensional structural exploded schematic diagram of the drainage mechanism in the embodiment.

[0018] The reference numerals in the drawings are: 1, support; 2, cover plate; 3, liquid collection cylinder; 4, lifting cylinder; 5, diversion pipe; 6, limiting cylinder; 7, filter cylinder; 8, discharge hole; 9, filter screen; 10, aggregate cover; 11, bottom sleeve; 12, screw lifting mechanism; 13, main motor; 14, first bevel gear; 15, second bevel gear; 16, bevel gear frame; 17, connection ring; 18, auxiliary screw; 19, auxiliary nut; 20, drainage mechanism; 21, top plate; 22, liquid leakage hole; 23, chassis; 24, drainage port; 25, bottom gear ring; 26, bottom gear; 27, tooth seat; 28, auxiliary bevel gear; 29, main bevel gear; 30, pressing gear; 31, pressing rack; 32, limiting ring frame; 33, bottom ring; 34, return spring; 35, limiting pin; 36, dehydration mechanism; 37, auxiliary motor; 38, auxiliary gear; 39, auxiliary gear ring; 40, air pump; 41, hose; 42, air pipe; 43, one-way air valve; 44, sliding seat; 45, limiting frame; 46, electric push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To further understand the features, technical means, and specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Reference Figures 1 to 8A positive and negative electrode material filtering and separation device comprises a bracket 1 and a cover plate 2 fixedly connected to the upper end of the bracket 1, and further comprises: A liquid collecting cylinder 3 is fixedly connected to the lower part of the bracket 1, and a bottom sleeve 11 is arranged on the upper end of the liquid collecting cylinder 3, and a collecting cover 10 is fixedly connected to the upper end of the bottom sleeve 11. A lifting cylinder 4 is slidingly arranged coaxially on the side of the liquid collecting cylinder 3 close to the center of the circle, and a guide tube 5 is fixedly connected to the middle part of the lifting cylinder 4. A drainage mechanism 20 for controlling the flow of solution is arranged at the lower part of the lifting cylinder 4, and the lifting cylinder 4 is moved in the vertical direction through a screw lifting mechanism 12. A limiting cylinder 6 coaxially arranged with the bottom sleeve 11 is arranged on the upper end of the liquid collecting cylinder 3, and the limiting cylinder 6 is key-connected to the guide tube 5. A filter cylinder 7 is coaxially arranged on the side of the lifting cylinder 4 close to the center of the circle, and a dehydration mechanism 36 is arranged on the upper end of the filter cylinder 7. The dehydration mechanism 36 includes an air pump 40 fixedly connected to the upper end of the bracket 1 and an air pipe 42 connected to the output end of the air pump 40 through a hose 41, and the air pipe 42 is adjustably connected to the cover plate 2. The dehydration mechanism 36 drives the filter cylinder 7 to rotate when the air pump 40 is running.

[0021] When the device is in operation, the operator pours the solid materials of the positive and negative electrode materials into the filter cartridge 7, and then pours the solution used for the reaction into the filter cartridge 7. During this process, the solution and the solid materials react in the filter cartridge 7. During the reaction, the filter cartridge 7 rotates under the action of the dehydration mechanism 36. At this time, the solution and the solid materials in the filter cartridge 7 will undergo a mixing reaction, and the air pump 40 will inject air into the filter cartridge 7 through the air pipe 42 to increase the air pressure in the filter cartridge 7 and increase the reaction speed.

[0022] When the reaction is completed, the screw lifting mechanism 12 drives the lifting cylinder 4 to move downward. At this time, the lower end of the filter cylinder 7 and the lifting cylinder 4 are misaligned. The solution will flow downward through the filter cylinder 7 and finally fall into the liquid collecting cylinder 3 (the specific process will be explained later), while the solid material will be retained in the filter cylinder 7. During the separation process of the solution and the solid material, the air pipe 42 will also move toward the lower end of the filter cylinder 7. The solid material will be dried by the airflow provided by the air pipe 42 to prevent the solution from remaining on the solid material and affecting the subsequent collection of the solid material.

[0023] As the lifting cylinder 4 continues to descend and is offset from the lower end of the filter cylinder 7, and as the filter cylinder 7 rotates, the solid materials at the lower end of the filter cylinder 7 will be thrown to the edge of the filter cylinder 7 until the solid materials leave the filter cylinder 7 and are thrown into the collecting cover 10.

[0024] In order to achieve the filtration of materials and the collection of dehydrated materials, the following features are also set: The lower end of the filter cartridge 7 is fixedly connected with a filter screen 9 (such as Figure 5As shown in the figure, several discharge holes 8 are formed in the lower part of the filter cartridge 7 at equal angular intervals in the circumferential direction. During the soaking and catalysis process, the materials react at the upper end of the filter screen 9. During solid-liquid separation, the filter screen 9 can intercept the solid materials, so that the solid materials remain in the filter cartridge 7, while the solution can smoothly pass through the filter screen 9 and flow downward. When the solid-liquid separation is completed and the filter cartridge 7 rotates, the solid materials are thrown to the edge of the filter cartridge 7, and the discharge holes 8 provide a channel for the solid materials to leave the filter cartridge 7 and enter the aggregate cover 10, ensuring that the solid materials can be smoothly discharged and improving the separation efficiency of the device.

[0025] To supplement the detailed structure of the screw lifting mechanism 12, the following features are specifically set: The screw lifting mechanism 12 further includes an adapter ring 17, two main motors 13, two first bevel gears 14, two second bevel gears 15, two auxiliary screws 18 and two auxiliary screw sleeves 19. The adapter ring 17 is key-connected to the inner wall of the bottom sleeve 11 (as Figure 3 shown), the adapter ring 17 is fixedly connected to the lower end of the lifting cylinder 4, two auxiliary screw sleeves 19 are respectively fixedly connected to the adapter ring 17, two auxiliary screws 18 are respectively threadedly connected to the two auxiliary screw sleeves 19, the upper end of the auxiliary screw 18 is rotatably connected to the aggregate cover 10, and the lower end is rotatably connected to the bracket 1. Two second bevel gears 15 are respectively rotatably arranged on one side of the bottom sleeve 11 close to the center of the circle through a bevel gear frame 16. The second bevel gear 15 is coaxially and fixedly connected to the lower end of the auxiliary screw 18. The first bevel gear 14 is rotatably connected to the bevel gear frame 16 and meshes with the second bevel gear 15. Two main motors 13 are respectively fixedly connected to the outer wall of the bottom sleeve 11 and the output ends are fixedly connected to the first bevel gear 14. When it is necessary to control the lifting cylinder 4 to move in the vertical direction, the main motor 13 is started to drive the first bevel gear 14 to rotate. Since the first bevel gear 14 meshes with the second bevel gear 15, the second bevel gear 15 rotates accordingly, and then drives the auxiliary screw 18 to rotate. The rotation of the auxiliary screw 18 causes the auxiliary screw sleeve 19 to move linearly along the auxiliary screw 18. The auxiliary screw sleeve 19 drives the lifting cylinder 4 to move precisely in the vertical direction through the adapter ring 17, providing power support for the dislocation of the filter cartridge 7 and the lifting cylinder 4 during the solid-liquid separation process.

[0026] To supplement the specific structure of the drainage mechanism 20, the following features are specifically set: The drainage mechanism 20 includes a top plate 21 and a bottom plate 23. The top plate 21 is coaxially and fixedly connected to the lifting cylinder 4 (as Figure 5 shown), the bottom plate 23 is coaxially and adjustably connected to the lower end of the top plate 21. The top plate 21 is formed with a plurality of liquid leakage holes 22 at equal angular intervals in the circumferential direction (as Figure 8As shown, a number of drainage ports 24 are formed in the chassis 23 in an equiangular array along the circumferential direction. The number of a number of liquid leakage holes 22 is the same as that of the a number of drainage ports 24. After the reaction ends, when the lifting cylinder 4 descends to a certain position, by adjusting the relative angle between the chassis 23 and the top plate 21, the liquid leakage holes 22 are aligned with the drainage ports 24. At this time, the solution can sequentially pass through the filter screen 9, the liquid leakage holes 22 and the drainage ports 24 and fall into the liquid collection cylinder 3, realizing the effective drainage of the solution and ensuring that the solution can be smoothly discharged during the solid-liquid separation process.

[0027] In order to rotate the chassis 23 so that when the lifting cylinder 4 moves to the lowest point, the solution will sequentially pass through the filter screen 9, the liquid leakage holes 22 and the drainage ports 24 and fall into the liquid collection cylinder 3, the following features are specifically set: The drainage mechanism 20 further includes a bottom gear ring 25, a bottom ring 33, a limit ring frame 32, two bottom gears 26, two tooth seats 27, two secondary bevel gears 28, two primary bevel gears 29, two pressing gears 30, two pressing racks 31, two return springs 34 and two limit pins 35. The bottom ring 33 is slidably connected to the lower end of the lifting cylinder 4 (as Figure 5 shown), the two limit pins 35 are respectively arranged on one side of the lifting cylinder 4 close to the center of the circle. The upper end of the limit pin 35 is fixedly connected to the top plate 21, and the lower end is slidably connected to the bottom ring 33 (as Figure 8 shown), the return spring 34 is sleeved outside the limit pin 35. The upper end of the return spring 34 is fixedly connected to the top plate 21, and the lower end is fixedly connected to the bottom ring 33. The pressing rack 31 is arranged beside the limit pin 35 and fixedly connected to the bottom ring 33. The tooth seat 27 is arranged beside the pressing rack 31 and fixedly connected to the top plate 21. The pressing gear 30 is engaged with the pressing rack 31 and rotatably connected to the tooth seat 27. The primary bevel gear 29 is rotatably connected to the tooth seat 27 and coaxially fixedly connected to the pressing gear 30. The secondary bevel gear 28 is rotatably connected to the tooth seat 27 and meshed with the primary bevel gear 29. The bottom gear 26 is rotatably connected to the tooth seat 27 and coaxially fixedly connected to the secondary bevel gear 28. The bottom gear ring 25 is coaxially fixedly connected to the chassis 23 and meshed with the bottom gear 26. The limit ring frame 32 is sleeved outside the diversion pipe 5 and fixedly connected to the diversion pipe 5 (as Figure 5 shown), and the limit ring frame 32 is fixedly connected to the tooth seat 27. During the process of the lifting cylinder 4 moving to the lowest point, the limit cylinder 6 will abut against the bottom ring 33 (as Figure 3As shown in the figure, when the lifting cylinder 4 continues to move at this time, the bottom ring 33 will be displaced, the pressing rack 31 will move and drive the pressing gear 30 to rotate. The pressing gear 30 drives the driven bevel gear 28 to rotate through the main bevel gear 29, and the driven bevel gear 28 drives the bottom gear ring 25 to rotate through the bottom gear 26, thereby realizing the rotation of the chassis 23, so that when the lifting cylinder 4 moves to the lowest point, the liquid leakage hole 22 and the drainage port 24 can be aligned to ensure the smooth discharge of the solution. At the same time, when the lifting cylinder 4 rises, the return spring 34 can make the chassis 23 return to the initial position to prepare for the next solid-liquid separation.

[0028] In order to realize the self-rotation of the filter cylinder 7, the following features are specifically set: The dehydration mechanism 36 includes a sub-motor 37, a sub-gear 38 and a sub-gear ring 39. The sub-motor 37 is fixedly connected to the upper end of the bracket 1 (as Figure 6 shown), the sub-gear 38 is coaxially and fixedly connected to the output end of the sub-motor 37, and the sub-gear ring 39 is fixedly connected to the upper end of the filter cylinder 7. When it is necessary to make the filter cylinder 7 rotate self, the sub-motor 37 starts and drives the sub-gear 38 to rotate. Since the sub-gear 38 meshes with the sub-gear ring 39, the sub-gear ring 39 will drive the filter cylinder 7 to rotate self with the rotation of the sub-gear 38, so that the solid materials and the solution in the filter cylinder 7 can be fully mixed and reacted. At the same time, after the reaction is over, the self-rotation of the filter cylinder 7 can throw the solid materials to the edge and discharge them, improving the separation and dehydration efficiency of the device.

[0029] In order to prevent air from flowing back to the air pipe 42 due to excessive pressure in the filter cylinder 7, the following features are specifically set: A one-way air valve 43 is fixedly connected to the lower end of the air pipe 42 (as Figure 3 shown), and the one-way air valve 43 ensures that air cannot flow back from the lifting cylinder 4 into the air pipe 42. When the air pump 40 operates to inject air into the filter cylinder 7 through the air pipe 42, the one-way air valve 43 can ensure that air can only enter the filter cylinder 7 from the air pipe 42, and will not make the air flow back to the air pipe 42 when the pressure in the filter cylinder 7 changes, ensuring that the air pump 40 continuously and stably injects air into the filter cylinder 7 and improving the reaction speed and dehydration effect.

[0030] In order to realize the movement of the air pipe 42 in the vertical direction, and thus change the distance between the lower end of the air pipe 42 and the filter screen 9, the following features are specifically set: The dehydration mechanism 36 further includes a sliding seat 44, a limiting frame 45 and an electric push rod 46. The sliding seat 44 is fixedly connected to the air pipe 42 (as Figure 6As shown in the figure, the limit frame 45 is fixedly connected to the upper end of the cover plate 2. The sliding seat 44 is slidably connected to the limit frame 45. The electric push rod 46 is arranged beside the limit frame 45. The fixed end of the electric push rod 46 is fixedly connected to the cover plate 2, and the movable end is fixedly connected to the sliding seat 44. When it is necessary to change the distance between the lower end of the air pipe 42 and the filter screen 9, the electric push rod 46 is started. The movable end of the electric push rod 46 expands and contracts, driving the sliding seat 44 to slide in the limit frame 45. Since the sliding seat 44 is fixedly connected to the air pipe 42, the air pipe 42 will move in the vertical direction along with the sliding of the sliding seat 44, thereby realizing the change of the distance between the lower end of the air pipe 42 and the filter screen 9, facilitating the adjustment of the position of the air pipe 42 according to different reaction and dehydration requirements, and improving the applicability of the device.

[0031] The working principle of this device is as follows: In the initial stage of device operation, the operator pours the solid materials of the positive and negative electrode materials into the filter cylinder 7, and then pours the solution for reaction from the upper end of the filter cylinder 7. At this time, the auxiliary motor 37 is started to drive the auxiliary gear 38 to rotate. The auxiliary gear 38 meshes with the auxiliary gear ring 39, so that the filter cylinder 7 starts to rotate. During the rotation of the filter cylinder 7, the solution and the solid materials are fully mixed and reacted in the cylinder. At the same time, the air pump 40 operates, and air is injected into the filter cylinder 7 through the air pipe 42. The one-way air valve 43 at the lower end of the air pipe 42 ensures that the air can only enter the filter cylinder 7 unidirectionally, avoiding backflow, increasing the air pressure in the filter cylinder 7, and accelerating the progress of the reaction.

[0032] When the reaction is over, the screw lifting mechanism 12 starts to work. The main motor 13 is started to drive the first bevel gear 14 to rotate. The first bevel gear 14 meshes with the second bevel gear 15, so that the second bevel gear 15 drives the auxiliary screw 18 to rotate. The auxiliary screw 18 is threadedly connected to the auxiliary nut sleeve 19, and the auxiliary nut sleeve 19 is fixedly connected to the connecting ring 17, thereby driving the lifting cylinder 4 to move downward. As the lifting cylinder 4 descends, a dislocation occurs between the lower end of the filter cylinder 7 and the lifting cylinder 4. The solution passes through the filter screen 9 at the lower end of the filter cylinder 7, successively passes through the liquid leakage holes 22 of the top plate 21 and the drainage ports 24 of the bottom plate 23, and finally falls into the liquid collection cylinder 3, realizing the preliminary separation of solid and liquid.

[0033] During the process of the lifting cylinder 4 descending to the lowest point, the bottom ring 33 drives the pressing rack 31 to move downward. The pressing rack 31 meshes with the pressing gear 30, so that the pressing gear 30 rotates. Through the transmission of the main bevel gear 29, the auxiliary bevel gear 28 and the bottom gear 26, the bottom plate 23 is driven to rotate, aligning the liquid leakage holes 22 and the drainage ports 24 to ensure the smooth discharge of the solution.

[0034] Meanwhile, as the lifting cylinder 4 continues to descend, under the action of the electric push rod 46, the air pipe 42 slides in the limiting frame 45 through the sliding seat 44 and moves towards the lower end of the filter cylinder 7. At this time, the air flow blown out by the air pipe 42 dries the solid materials remaining in the filter cylinder 7 to prevent solution residue from affecting subsequent collection. With the continuous rotation of the filter cylinder 7, the solid materials located at the lower end of the filter cylinder 7 are thrown to the edge of the filter cylinder 7, leave the filter cylinder 7 through the discharge holes 8 and are thrown into the aggregate cover 10, completing the filtration and separation process of the positive and negative electrode materials.

[0035] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A filtering and separating device for positive and negative electrode materials, comprising a bracket and a cover plate fixedly connected to the upper end of the bracket, characterized in that, It further includes: A liquid collecting cylinder fixedly connected to the lower part of the bracket. A bottom sleeve is arranged at the upper end of the liquid collecting cylinder. An aggregate collecting cover is fixedly connected to the upper end of the bottom sleeve. A lifting cylinder is coaxially and slidably arranged on one side of the liquid collecting cylinder close to the center of the circle. A diversion pipe is fixedly connected to the middle of the lifting cylinder. A drainage mechanism for controlling the flow of the solution is arranged at the lower part of the lifting cylinder. The lifting cylinder realizes vertical movement through a screw lifting mechanism. A limiting cylinder coaxially arranged with the bottom sleeve is arranged at the upper end of the liquid collecting cylinder. The limiting cylinder is key-connected to the diversion pipe. A filtering cylinder is coaxially arranged on one side of the lifting cylinder close to the center of the circle. A dehydration mechanism is arranged at the upper end of the filtering cylinder. The dehydration mechanism includes an air pump fixedly connected to the upper end of the bracket and an air pipe connected to the output end of the air pump through a hose. The air pipe is adjustably connected to the cover plate. The dehydration mechanism drives the filtering cylinder to rotate when the air pump operates.

2. The filtering and separating device for positive and negative electrode materials according to claim 1, characterized in that, A filter screen is fixedly connected to the lower end of the filtering cylinder. A plurality of discharge holes are formed in the lower part of the filtering cylinder in an equiangular array along the circumferential direction.

3. The filtering and separating device for the positive and negative electrode materials according to claim 1, characterized in that, The screw lifting mechanism further includes an adapter ring, two main motors, two first bevel gears, two second bevel gears, two auxiliary screws and two auxiliary screw sleeves. The adapter ring is key-connected to the inner wall of the bottom sleeve. The adapter ring is fixedly connected to the lower end of the lifting cylinder. The two auxiliary screw sleeves are respectively fixedly connected to the adapter ring. The two auxiliary screws are respectively threadedly connected to the two auxiliary screw sleeves. The upper end of the auxiliary screw is rotatably connected to the aggregate collecting cover, and the lower end is rotatably connected to the bracket. The two second bevel gears are respectively rotatably arranged on one side of the bottom sleeve close to the center of the circle through bevel gear frames. The second bevel gear is coaxially fixedly connected to the lower end of the auxiliary screw. The first bevel gear is rotatably connected to the bevel gear frame and meshes with the second bevel gear. The two main motors are respectively fixedly connected to the outer wall of the bottom sleeve and the output ends are fixedly connected to the first bevel gear.

4. A positive and negative electrode material filtration and separation device according to claim 1, characterized in that, The drainage mechanism includes a top plate and a bottom plate. The top plate is coaxially fixedly connected to the lifting cylinder. The bottom plate is coaxially and adjustably connected to the lower end of the top plate. A plurality of liquid leakage holes are formed in the top plate in an equiangular array along the circumferential direction. A plurality of drainage ports are formed in the bottom plate in an equiangular array along the circumferential direction. The number of the plurality of liquid leakage holes is the same as that of the plurality of drainage ports.

5. A positive and negative electrode material filtration and separation device according to claim 4, characterized in that, The drainage mechanism further includes a bottom gear ring, a bottom ring, a limiting ring frame, two bottom gears, two tooth seats, two secondary bevel gears, two main bevel gears, two pressing gears, two pressing racks, two return springs and two limiting pins. The bottom ring is slidably connected to the lower end of the lifting cylinder. The two limiting pins are respectively arranged on one side of the lifting cylinder close to the center of the circle. The upper end of the limiting pin is fixedly connected to the top plate, and the lower end is slidably connected to the bottom ring. The return spring is sleeved outside the limiting pin. The upper end of the return spring is fixedly connected to the top plate, and the lower end is fixedly connected to the bottom ring. The pressing rack is arranged beside the limiting pin and fixedly connected to the bottom ring. The tooth seat is arranged beside the pressing rack and fixedly connected to the top plate. The pressing gear meshes with the pressing rack and is rotatably connected to the tooth seat. The main bevel gear is rotatably connected to the tooth seat and coaxially fixedly connected to the pressing gear. The secondary bevel gear is rotatably connected to the tooth seat and meshes with the main bevel gear. The bottom gear is rotatably connected to the tooth seat and coaxially fixedly connected to the secondary bevel gear. The bottom gear ring is coaxially fixedly connected to the bottom plate and meshes with the bottom gear. The limiting ring frame is sleeved outside the diversion pipe and fixedly connected to the diversion pipe. The limiting ring frame is fixedly connected to the tooth seat.

6. The filtering and separating device for positive and negative electrode materials according to claim 1, characterized in that, The dehydration mechanism includes a sub-motor, a sub-gear and a sub-toothed ring. The sub-motor is fixedly connected to the upper end of the bracket. The sub-gear is coaxially and fixedly connected to the output end of the sub-motor. The sub-toothed ring is fixedly connected to the upper end of the filter cylinder.

7. A positive and negative electrode material filtering and separating device according to claim 1, characterized in that, A one-way air valve is fixedly connected to the lower end of the air pipe. The one-way air valve ensures that air cannot flow back from the lifting cylinder into the air pipe.

8. The filtration and separation device for positive and negative electrode materials according to claim 1, characterized in that The dehydration mechanism further includes a sliding seat, a limiting frame and an electric push rod. The sliding seat is fixedly connected to the air pipe. The limiting frame is fixedly connected to the upper end of the cover plate. The sliding seat is slidably connected to the limiting frame. The electric push rod is arranged beside the limiting frame. The fixed end of the electric push rod is fixedly connected to the cover plate, and the movable end is fixedly connected to the sliding seat.

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