Lithium ion battery slurry sieving device

Abstract

The utility model discloses a lithium ion battery slurry sieving device which comprises a processing barrel, and a servo motor is fixed on one side of the top end of the processing barrel. The bottom end of the storage hopper is fixedly connected with the top end of the distribution bin, the top of the inner wall of the treatment barrel is fixedly connected with the edge of the top end of a concentration hopper, and a middle filter screen is fixedly mounted at the bottom end of the concentration hopper; a spring telescopic rod is fixedly installed at the bottom of the inner wall of the treatment cylinder, the top end of the spring telescopic rod is fixedly connected with the outer wall of the bottom filter cylinder, a linear vibration motor is installed on the outer wall of the bottom filter cylinder, and a discharging pipe is installed at the bottom end of one side of the treatment cylinder. According to the lithium ion battery slurry screening device, the novel structural design is adopted, undispersed large-particle agglomerates in slurry are continuously filtered through multiple sets of filtering mechanisms, the slurry is efficiently filtered through cooperation of three modes of rotary centrifugation, gravity and vibration, the filtering effect is improved, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a lithium ion battery slurry screening device. Background Art

[0002] Lithium-ion battery slurry is a necessary raw material for the production of lithium-ion batteries. It is mainly composed of active substances, conductive agents, binders and solvents. In the preparation process of lithium-ion battery slurry, lithium-ion battery slurry needs to be filtered to remove undispersed large particle agglomerates in the slurry after the preparation of solid dispersant and binder solution, conductive agent slurry, pre-mixing of active substances, high-speed stirring and dispersion, vacuum degassing and homogenization steps.

[0003] The existing lithium-ion battery slurry screening device, such as the Chinese utility model patent entitled "A lithium-ion battery slurry screening device" with publication number CN212790035U, includes a shell, a dust cover 1 is fixedly connected to the center position of the upper surface of the shell, a feed pipe is fixedly connected to the upper surface of the shell and located on the left side of the dust cover 1, a motor 1 is fixedly connected to the dust cover 1 through a support rod 1, the output end of the motor 1 is fixedly connected to the top of the transmission rod 1 through a coupling 1, the bottom end of the transmission rod 1 is movably connected through a through hole 1 in the center position of the top wall of the shell, and the bottom end of the transmission rod 1 extends inward to the inside of the shell. In this patent solution, only one filter plate is provided, the filtering structure is small, and it is only a simple vibration filtering, the overall filtering effect is poor, and the filtering efficiency is low. Therefore, it is necessary to design a lithium-ion battery slurry screening device to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium-ion battery slurry screening device to solve at least one technical problem existing in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium-ion battery slurry screening device, comprising:

[0007] A processing cylinder, a servo motor is fixed to one side of the top of the processing cylinder, a driving gear is fixed to the end of the output shaft of the servo motor, the driving gear is meshed and connected with the driven gear, the driven gear is fixedly installed on the outer wall of the middle part of the storage hopper, and the storage hopper is installed in the center of the top surface of the processing cylinder through the bottom bearing seat;

[0008] A storage hopper, wherein the bottom end of the storage hopper is connected and fixed to the top end of the distribution bin, a mounting seat is fixed to the bottom of the outer wall of the distribution bin, the inner wall of the mounting seat is connected to the top of the filter tube, a primary filter is fixedly installed on the inner wall of the filter tube, the top of the inner wall of the treatment cylinder is connected and fixed to the top edge of the concentration hopper, and a middle filter is fixedly installed at the bottom end of the concentration hopper;

[0009] A processing cylinder, wherein a spring telescopic rod is fixedly installed at the bottom of the inner wall of the processing cylinder, the top of the spring telescopic rod is connected and fixed to the outer wall of the bottom filter cylinder, a linear vibration motor is installed on the outer wall of the bottom filter cylinder, and a discharge pipe is installed at the bottom end of one side of the processing cylinder.

[0010] Preferably, the driving gear and the driven gear are both bevel gears, and the diameter of the driving gear is smaller than the diameter of the driven gear.

[0011] Preferably, the distribution bin is configured as a hollow sphere, the inner bottom surface of the distribution bin is configured as a conical surface, and the edge of the conical surface at the inner bottom of the distribution bin is on the same horizontal plane as the bottom end of the top opening of the filter tube.

[0012] Preferably, the top outer wall of the filter tube is threadedly connected to the inner wall of the mounting seat, the mounting seat and the filter tube are distributed at equal angles with respect to the center of the distribution bin, and the filter tube is arranged to be inclined downward.

[0013] Preferably, the primary filter screens are densely arranged at equal intervals in the filter tube, and the mesh diameters of the primary filter screens decrease from top to bottom.

[0014] Preferably, the spring telescopic rod and the linear vibration motor are symmetrically distributed about the center of the bottom filter cartridge, and the center of the bottom filter cartridge and the center of the middle filter screen are on the same vertical line.

[0015] Preferably, the inner diameter of the bottom filter cartridge is larger than the top diameter of the middle filter screen, and the overall height of the bottom filter cartridge is larger than 1 / 3 of the overall height of the treatment cartridge.

[0016] Preferably, a horizontal filter screen is fixedly mounted on the inner wall of the bottom filter cartridge, and the horizontal filter screens are horizontally evenly spaced.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The new structural design is adopted to continuously filter the large particles that are not dispersed in the slurry through multiple groups of filtering mechanisms, and the slurry is efficiently filtered through the combination of rotary centrifugal, gravity and vibration, which improves the filtering effect and efficiency.

[0019] 1. The utility model controls the driving gear to rotate and drive the driven gear through the servo motor, and the driven gear drives the storage hopper, the distribution bin and the filter tube to rotate stably, and uses the centrifugal force to quickly discharge the slurry and perform the initial filtration, and the filter tube can be easily disassembled and cleaned;

[0020] 2. The utility model concentrates and secondary filters the slurry that has been centrifugally filtered through the filter tube and the primary filter screen, drives the bottom filter cartridge to vibrate vertically through the linear vibration motor, and filters the slurry again through the horizontal filter screen in the bottom filter cartridge to ensure the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view structural schematic diagram of the utility model.

[0022] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the central top view of the material distribution bin of the utility model.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the bottom filter cartridge of the utility model when viewed from above.

[0025] In the figure: 1. Processing cylinder; 2. Servo motor; 3. Driving gear; 4. Driven gear; 5. Storage hopper; 6. Distribution bin; 7. Mounting seat; 8. Filter tube; 9. Primary filter screen; 10. Concentrating bucket; 11. Middle filter screen; 12. Spring telescopic rod; 13. Bottom filter cylinder; 14. Linear vibration motor; 15. Horizontal filter screen; 16. Discharge pipe. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-4 , an embodiment provided by the utility model:

[0031] A lithium-ion battery slurry screening device, comprising:

[0032] A processing cylinder 1, a servo motor 2 is fixed to one side of the top of the processing cylinder 1, a driving gear 3 is fixed to the end of the output shaft of the servo motor 2, the driving gear 3 is meshed and connected with the driven gear 4, the driving gear 3 and the driven gear 4 are both bevel gears, the diameter of the driving gear 3 is smaller than the diameter of the driven gear 4, the above structural design enables the driving gear 3 to stably drive the driven gear 4 to carry the storage hopper 5 and the distribution bin 6 to perform stable rotational motion when rotating, the driven gear 4 is fixedly installed on the outer wall of the middle part of the storage hopper 5, and the storage hopper 5 is installed in the center of the top surface of the processing cylinder 1 through the bottom bearing seat;

[0033] The bottom of the filter press 7 is provided with a filter 8, and the filter press 8 is provided with a filter 8. The filter press 8 is provided with a filter 8, and the filter press 8 is provided with a filter 8.

[0034] The processing cylinder 1 has a spring telescopic rod 12 fixedly installed at the bottom of the inner wall of the processing cylinder 1. The top of the spring telescopic rod 12 is connected and fixed to the outer wall of the bottom filter cylinder 13. A linear vibration motor 14 is installed on the outer wall of the bottom filter cylinder 13. A discharge pipe 16 is installed at the bottom end of one side of the processing cylinder 1.

[0035] In one embodiment, the primary filter screen 9 is densely arranged at equal intervals in the filter tube 8, and the mesh diameter of the primary filter screen 9 decreases from top to bottom. The above structural design can grade and filter large particle agglomerates of different sizes to avoid accumulation and clogging of large particle agglomerates in one place.

[0036] In one of the preferred embodiments, the spring telescopic rod 12 and the linear vibration motor 14 are symmetrically distributed about the center of the bottom filter cartridge 13, and the center of the bottom filter cartridge 13 and the center of the middle filter screen 11 are on the same vertical line. The above-mentioned structural design enables the spring telescopic rod 12 to stably support the bottom filter cartridge 13, and the linear vibration motor 14 can also drive the bottom filter cartridge 13 to move vertically stably during operation.

[0037] In one embodiment, the inner diameter of the bottom filter cartridge 13 is larger than the top diameter of the middle filter screen 11, and the overall height of the bottom filter cartridge 13 is larger than 1 / 3 of the overall height of the treatment cartridge 1. The above structural design can ensure that the slurry falls completely into the bottom filter cartridge 13 to avoid slurry leakage.

[0038] In one of the preferred embodiments, a horizontal filter screen 15 is fixedly mounted on the inner wall of the bottom filter cartridge 13 , and the horizontal filter screens 15 are horizontally evenly spaced. The above structural design can vibrate and screen the slurry entering the bottom filter cartridge 13 .

[0039] The working principle of the utility model is as follows: when using the device, the servo motor 2 and the linear vibration motor 14 are powered first, the servo motor 2 drives the driving gear 3 to rotate, the driving gear 3 drives the storage hopper 5 and the distribution bin 6 to rotate stably through the driven gear 4, and the linear vibration motor 14 drives the bottom filter cartridge 13 to vibrate vertically under the support of the spring telescopic rod 12;

[0040] The slurry to be filtered is then Figure 2 The slurry is poured into the top of the middle storage hopper 5, and falls into the sub-bin 6. The centrifugal force generated by the rotation of the sub-bin 6 quickly throws the slurry into the filter tube 8. The slurry is filtered by the primary filter screen 9 with equal spacing, discharged from the bottom end of the filter tube 8, falls into the concentration bucket 10, and flows downward along the inclined inner wall of the concentration bucket 10, passes through the middle filter screen 11 for secondary filtration, and then falls into the bottom filter cylinder 13, and is filtered three times by the vertically vibrating horizontal filter screen 15, and finally discharged through the discharge pipe 16 along the inner bottom surface of the inclined treatment cylinder 1;

[0041] Can be opened regularly Figure 1 The door on the front of the middle treatment cylinder 1 is used to clean the outside of the middle filter 11 and the horizontal filter 15. Figure 2 Open the door on the left side of the top of the middle treatment cylinder 1, rotate and remove the filter tube 8, clean the filter tube 8 and the primary filter screen 9, and rinse the storage hopper 5, the distribution bin 6, the concentration hopper 10 and the middle filter screen 11.

[0042] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A lithium-ion battery slurry screening device, characterized in that: It includes: A processing cylinder (1), wherein a servo motor (2) is fixed to one side of the top end of the processing cylinder (1), a driving gear (3) is fixed to the end of the output shaft of the servo motor (2), the driving gear (3) is meshingly connected with a driven gear (4), the driven gear (4) is fixedly mounted on the middle outer wall of a storage hopper (5), and the storage hopper (5) is installed at the center of the top surface of the processing cylinder (1) through a bottom bearing seat; A storage hopper (5), wherein the bottom end of the storage hopper (5) is connected and fixed to the top end of a distribution bin (6), a mounting seat (7) is fixed to the bottom of the outer wall of the distribution bin (6), the inner wall of the mounting seat (7) is connected to the top end of a filter tube (8), a primary filter screen (9) is fixedly installed on the inner wall of the filter tube (8), the top end of the inner wall of the treatment cylinder (1) is connected and fixed to the top edge of a concentration bin (10), and a middle filter screen (11) is fixedly installed on the bottom end of the concentration bin (10); A processing cylinder (1), wherein a spring telescopic rod (12) is fixedly mounted at the bottom of the inner wall of the processing cylinder (1), the top end of the spring telescopic rod (12) is connected and fixed to the outer wall of a bottom filter cylinder (13), a linear vibration motor (14) is mounted on the outer wall of the bottom filter cylinder (13), and a discharge pipe (16) is mounted at the bottom end of one side of the processing cylinder (1).

2. A lithium-ion battery slurry screening device according to claim 1, characterized in that: The driving gear (3) and the driven gear (4) are both bevel gears, and the diameter of the driving gear (3) is smaller than the diameter of the driven gear (4).

3. The lithium-ion battery slurry screening device according to claim 1, characterized in that: The distribution bin (6) is configured as a hollow spherical shape, the inner bottom surface of the distribution bin (6) is configured as a conical surface, and the edge of the conical surface at the inner bottom of the distribution bin (6) is on the same horizontal plane as the bottom end of the top opening of the filter tube (8).

4. The lithium-ion battery slurry screening device according to claim 1, characterized in that: The top outer wall of the filter tube (8) is threadedly connected to the inner wall of the mounting seat (7); the mounting seat (7) and the filter tube (8) are both distributed at equal angles with respect to the center of the distribution bin (6); and the filter tube (8) is arranged to be inclined downward.

5. The lithium-ion battery slurry screening device according to claim 1, characterized in that: The primary filter screens (9) are densely arranged at equal intervals in the filter tube (8), and the mesh diameters of the primary filter screens (9) decrease from top to bottom.

6. The lithium-ion battery slurry screening device according to claim 1, characterized in that: The spring telescopic rod (12) and the linear vibration motor (14) are both symmetrically distributed about the center of the bottom filter cartridge (13), and the center of the bottom filter cartridge (13) and the center of the middle filter screen (11) are located on the same vertical line.

7. The lithium-ion battery slurry screening device according to claim 1, characterized in that: The inner diameter of the bottom filter cartridge (13) is greater than the top diameter of the middle filter screen (11), and the overall height of the bottom filter cartridge (13) is greater than 1 / 3 of the overall height of the treatment cartridge (1).

8. The lithium-ion battery slurry screening device according to claim 1, characterized in that: A horizontal filter screen (15) is fixedly mounted on the inner wall of the bottom filter cartridge (13), and the horizontal filter screens (15) are horizontally evenly spaced.

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