Polymorphic filtering mechanism and battery slurry filtering device comprising same

Abstract

The utility model discloses a polymorphic filtering mechanism and a battery slurry filtering device comprising the polymorphic filtering mechanism, the polymorphic filtering mechanism comprises a filtering cylinder, the surface of the filtering cylinder is provided with first filtering holes; the filter disc is arranged at the bottom of the filter cartridge and comprises a central part and a peripheral part annularly connected with the central part; the central part is a circular-arc-shaped bulge, and a second filtering hole is formed in the surface of the central part; the peripheral part is in a plane shape, and third filtering holes are formed in the surface of the peripheral part; and the pore size of the first filtering hole is smaller than that of the second filtering hole and that of the third filtering hole. The utility model further discloses a battery slurry filtering device containing the polymorphic filtering mechanism, through cooperation of all the mechanisms, filtering of large-particle slurry is completed, it is guaranteed that small-particle slurry quickly passes through the filtering mechanism, the purposes of filtering, sedimentation prevention and blockage prevention are achieved, and the capacity of quick filtering after battery slurry mixing is improved.

Description

Technical Field

[0001] This application belongs to the field of lithium battery production technology, specifically relating to a multi-form filtration mechanism, and also to a battery slurry filtration device containing the multi-form filtration mechanism. Background Technology

[0002] In the production process of lithium-ion batteries, the manufacturing of battery slurry is crucial. It is necessary to uniformly disperse active materials, conductive agents, binders and other substances in proportion to obtain a uniform slurry with stable viscosity.

[0003] After the battery slurry is mixed, it usually needs to be screened after flowing out of the mixing tank. The purpose is to prevent the particles in the slurry from agglomerating and flowing into the coating process, causing defects such as bumps and scratches on the coating surface.

[0004] Traditional slurry filtration mechanisms often employ single-structure filter screens or filter cartridges, relying solely on simple physical interception of the slurry. This leads to a rapid accumulation of particles on the filter screen surface, forming a dense filter layer, increasing filtration resistance and significantly reducing efficiency. In lithium battery slurry filtration scenarios, the slurry contains particles of various sizes. Traditional filter screens have fixed pore sizes and cannot filter in layers according to particle size, resulting in frequent clogging when encountering slurries with particle sizes close to the pore size or high viscosity. Furthermore, while existing technologies have introduced stirring and vacuum mechanisms into the filtration system, using rotating stirring paddles to scrape the material and single negative pressure vacuuming to improve the filtration rate, the problem of rapid particle accumulation and compaction on the filter screen surface remains. Additionally, the traditional filter screen structure is too simple to adapt to filtering complex slurries. Utility Model Content

[0005] In view of this, the primary objective of this application is to provide a multi-form filtration mechanism and a battery slurry filtration device containing the same, which can not only achieve good filtration of the slurry, but also ensure filtration speed and filtration effect.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] One aspect of this application discloses a multi-morphological filtration mechanism, comprising:

[0008] A filter cartridge, wherein a first filter hole is formed on the surface of the filter cartridge;

[0009] A filter disc is disposed at the bottom of the filter cylinder. The filter disc includes a central portion and a peripheral portion that is circumferentially connected to the central portion. The central portion is arc-shaped and has a second filter hole on its surface. The peripheral portion is planar and has a third filter hole on its surface.

[0010] The pore size of the first filter hole is smaller than that of the second and third filter holes, respectively.

[0011] Another aspect of this application discloses a battery slurry filtration device, comprising:

[0012] A body, wherein a connection port is provided on the upper side and a discharge port is provided on the lower side;

[0013] A multi-form filtration mechanism is provided inside the main body, and the filter cylinder does not contact the inner wall of the main body.

[0014] A stirring mechanism extends into the multi-morphic filtration mechanism to stir the slurry and clean the slurry inside the multi-morphic filtration mechanism.

[0015] And a vacuum mechanism, which evacuates the body through the connection port.

[0016] The beneficial effects of this application are:

[0017] The multi-form filtration mechanism provided in this application consists of filter cylinders and filter discs of various forms. The filter cylinders and filter discs have a graded filter hole design, which allows for layered filtration based on the size of the slurry particles, thereby achieving graded filtration of the slurry. This not only better meets the filtration needs of different particles in the slurry, but also avoids slurry deposition at the bottom, effectively improving filtration efficiency.

[0018] The battery slurry filtration device provided in this application utilizes a multi-morphological filtration mechanism in conjunction with a vacuum mechanism. Under the action of the vacuum mechanism, a vacuum adsorption zone is formed around the periphery of the multi-morphological filtration mechanism, thereby generating a strong negative pressure. In this negative pressure environment, appropriately sized slurry can easily pass through the filter pores. Slurry that cannot pass through the filter pores is stirred until its size meets the requirements. At the same time, the stirring mechanism can clean and scrape the side walls of the filter disc and filter cylinder, effectively preventing the slurry from clogging the filter pores during filtration, thus improving filtration efficiency. Furthermore, the lifting mechanism allows for convenient lifting and lowering of the end cap and stirring mechanism, facilitating the maintenance and cleaning of the filtration device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the multi-morphic filter mechanism 1 in a preferred embodiment of this application.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the middle filter cartridge 11.

[0021] Figure 3 and Figure 4 They are respectively Figure 1 A schematic diagram of the structure of the middle filter disc 12.

[0022] Figure 5This is a schematic diagram of the battery slurry filtration device in a preferred embodiment of this application.

[0023] Figure 6 for Figure 5 Internal cross-sectional view of the battery slurry filtration device.

[0024] Figure 7 for Figure 5 A schematic diagram of the structure of the middle cover 5.

[0025] Figure 8 for Figure 6 A schematic diagram of the structure of the stirring shaft 32 and the impeller 33.

[0026] In the diagram: 1-Multi-form filtration mechanism, 11-Filter cylinder, 111-Positioning stop, 112-Positioning groove, 12-Filter disc, 121-Center, 122-Peripheral, 123-Protruding pin, 131-First filter hole, 132-Second filter hole, 133-Third filter hole; 2-Body, 21-Connecting port, 22-Discharge port; 3-Stirring mechanism, 31-Stirring drive unit, 32-Stirring shaft, 33-Blade, 331-First part, 332-Second part, 333-First through hole, 334-Second through hole; 4-Vacuum mechanism; 5-End cap, 51-Inner zone, 52-Outer zone, 53-Feed inlet; 6-Lifting mechanism, 61-Frame, 62-Guide groove, 63-Lifting platform, 631-Horizontal component, 632-Lifting guide wheel, 64-Lifting drive unit. Detailed Implementation

[0027] The embodiments of this application are described in detail below. The embodiments described below are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0029] Example 1

[0030] This embodiment provides a multi-morphological filtration mechanism 2, the structure of which is as follows: Figure 1 As shown in the figure. The multi-form filtration mechanism 2 includes a filter cylinder 11 and a filter disc 12, wherein the filter disc 12 is located at the bottom of the filter cylinder 11.

[0031] Please see Figure 2The filter cylinder 11 is a cylindrical body with openings at both the top and bottom. First filter holes 131 are formed on the surface of the filter cylinder 11, covering the entire surface. Preferably, the outer edge of the upper end of the filter cylinder 11 has a flange, and a groove is formed around the circumference of the flange surface. A sealing element, such as a rubber ring, can be embedded in the groove as needed to improve the sealing effect with subsequent components.

[0032] Please see Figure 3 and Figure 4 The filter disc 12 includes a central portion 121 and a peripheral portion 122. The peripheral portion 122 is arranged circumferentially around the central portion 121 and is circumferentially connected to the outer edge of the central portion 121. The central portion 121 is arc-shaped and protrudes, and a second filter hole 132 is formed on its surface. The peripheral portion 122 is planar, and a third filter hole 133 is formed on its surface. The special design of the filter disc 12 ensures that when the slurry enters the filter chamber, it will naturally flow to the bottom under the action of gravity. At this time, the arc-shaped protruding central portion 121 can effectively guide large pieces of slurry to the peripheral portion 122 of the filter disc 12, avoiding the accumulation of slurry at the bottom center. This ensures that the slurry flows evenly to the peripheral portion 122 of the filter disc 12, thereby achieving staged filtration and a better and faster filtration effect.

[0033] The pore sizes of the first filter hole 131, the second filter hole 132, and the third filter hole 133 can be designed as needed. In this embodiment, the pore size of the first filter hole 131 is smaller than that of the second filter hole 132 and the third filter hole 133, respectively. Furthermore, in this embodiment, the first filter hole 131 and the second filter hole 132 are circular, while the third filter hole 133 is polygonal, such as square. This design allows small particles of slurry to pass smoothly through the side wall of the filter cylinder 11, while larger agglomerates can only fall into the main body through the filter disc 12, thus accelerating the filtration speed and ensuring the filtration effect.

[0034] Furthermore, the filter cartridge 11 and the filter disc 12 are connected by a certain connecting device. In this embodiment, please refer to [link to relevant documentation]. Figure 2 and Figure 4 At the bottom of the filter cylinder 11, there are two or more positioning blocks 111, and each positioning block 11 has a positioning groove 112 in its center. The number of positioning blocks 111 can be set as needed, preferably four, and they are evenly distributed along the bottom of the filter cylinder 11. The lower end face of the filter disc 12 is fitted with two or more protruding pins 123, which are adapted to the positioning grooves 112 and can be inserted into the positioning grooves 112 to fix the filter disc 12 and the filter cylinder 11.

[0035] The multi-form filtration mechanism 2 provided in this application not only ensures that small particles in the slurry can pass smoothly through the circular filter holes and the side wall of the filter cylinder 11 and the periphery of the filter disc 12, but also allows medium-sized particles in the slurry to pass through the third filter hole 133 on the periphery of the filter disc 12. This better meets the filtration needs of different particles in the slurry and effectively improves filtration efficiency.

[0036] Example 2

[0037] This embodiment provides a battery slurry filtration device, which includes the multi-morphic filtration mechanism 1 described in Embodiment 1. The structure of the battery slurry filtration device is as follows: Figure 5 and Figure 6 As shown, it includes a main body 2, with an end cap 5 covering the upper end of the main body 2. A multi-shaped filtration mechanism 1 is embedded inside the main body 2. The main body 2 is also connected to a vacuum mechanism 4. In addition, a stirring mechanism 3 and a lifting mechanism 6 are respectively provided on the upper part of the main body 2. The structure of the battery slurry filtration device will be described in detail below.

[0038] Please continue reading. Figure 5 and Figure 6 The main body 2 is a cylindrical barrel. A connection port 21 is provided on the upper side of the main body 2. This connection port 21 is used to connect to the vacuum mechanism 4, thereby realizing the vacuuming operation inside the main body 2. A discharge port 22 is provided on the lower side of the main body 2, used to discharge the filtered slurry from the main body 2. Preferably, a valve, such as a butterfly valve, can be installed at the discharge port 22 to control the opening and closing of the discharge port 22, thereby facilitating the control of the slurry discharge rate. It is understood that the main body 2 can be mounted on a moving device as needed, thereby facilitating the movement of the entire filtration device. Figure 5 and Figure 6 As shown, the main body 2 is mounted on a base, and four casters are provided under the base to enable the movement of the entire filtration device.

[0039] The multi-form filter mechanism 1 is embedded inside the body 2. In this embodiment, the multi-form filter mechanism 1 is supported by the flange of the filter cylinder 11 and is located inside the body 2. Specifically, the multi-form filter mechanism 1 is located inside the body 2, and the filter cylinder 11 does not contact the inner wall of the body 2. That is, there is a certain gap space between the filter cylinder 11 and the inner wall of the body 2. This is to facilitate the slurry to pass smoothly through the first filter hole 131 on the surface of the filter cylinder 11 and fall to the bottom of the body 2.

[0040] Please see Figure 7An end cap 5 is provided at the upper end of the main body 2, and the diameter of the end cap 5 is the same as that of the main body 2. In this embodiment, the end cap 5 is provided with a feed port 53 for adding battery slurry into the main body 2 through the feed port 53. Further, the end cap 5 includes an inner region 51 and an outer region 52 that is circumferentially connected to the inner region 51, that is, the central region is the inner region 51, and the outer region 52 is provided along the outer ring of the inner region 51. In this embodiment, the inner region 51 is made of a transparent material, such as polycarbonate (PC), to facilitate observation of the slurry state inside the filtration device. The outer region 52 is made of stainless steel or the like, to ensure the structural strength and hardness of the end cap 5.

[0041] For further details, please refer to Figure 6 and Figure 8 The stirring mechanism 3 includes a stirring drive unit 31. In this embodiment, the stirring drive unit 31 is a stirring motor or similar device commonly used in the art. The stirring drive unit 31 is located on the upper part of the end cover 5 and is fixedly connected to the end cover 5. A stirring shaft 32 is connected to the transmission end of the stirring drive unit 31. The stirring shaft 32 passes through the end cover 5 and extends into the multi-form filter mechanism 1 inside the body 2. Several blades 33 are provided at the end of the stirring shaft 32 away from the stirring drive unit 31. The blades 33 are evenly arranged along the axial direction of the stirring shaft 32, thereby driving the stirring shaft 32 and the blades 33 to rotate through the driving of the stirring drive unit 31, thus realizing the stirring of the battery slurry in the multi-form filter mechanism 1. Please continue reading. Figure 8 Centered on the stirring shaft 32, the impeller 33 includes a first part 331 at the distal end and a second part 332 at the proximal end. The first part 331 matches the interior of the filter cylinder 11 and the periphery of the filter disc 12. In this embodiment, the impeller 33 is a right-angled trapezoid with its hypotenuse on the upper side and slopes downward from the distal end to the proximal end. The four interior angles of the impeller 33 are 50°, 130°, 90°, and 90°, respectively. The second part 332 connects the stirring shaft 32 and the first part 331, and the second part 332 is arc-shaped and matches the surface of the center part 121 of the filter disc 12. It is understood that there is a certain gap between the impeller 33 and the surface of the multi-shaped filter mechanism 1, which is set to 3mm in this embodiment. Furthermore, a first through hole 333 and a second through hole 334 are respectively provided on the surfaces of the first part 331 and the second part 332 of the impeller 33. Furthermore, the stirring shaft 32 and the impeller 33 play an important role in the slurry filtration device. In this embodiment, their materials are preferably special high-strength, corrosion-resistant, and non-contaminating materials, such as ceramic-coated materials or specially treated alloy materials. The stirring mechanism 3 can not only stir the slurry in the multi-form filtration mechanism 1, fully mix the slurry in different positions so that it is evenly distributed in the filtration chamber, but also clean and scrape the slurry at the filter holes to prevent clogging, thereby accelerating the filtration speed and improving the filtration effect.

[0042] Please see Figure 5 and Figure 6 In this embodiment, the vacuum mechanism 4 is connected to the connection port 21 of the body 2 through a bellows. Preferably, the vacuum mechanism 4 in this embodiment adopts a breathing vacuum pump. Compared with the single constant pressure provided by the traditional vacuum mechanism, the breathing vacuum pump adopted in this application can avoid excessive accumulation of slurry through intermittent pressure fluctuations. It can work in conjunction with the multi-form filter mechanism 1 to achieve dynamic anti-clogging and achieve the effect of rapid filtration.

[0043] Please continue reading. Figure 5 and Figure 6 The lifting mechanism 6 includes a frame 61, with the main body 2 positioned in the middle of the frame 61. In this embodiment, the frame 61 is fixed to the base. Guide grooves 62 are provided on opposite vertical sides of the frame 61. The lifting mechanism 6 also includes a lifting platform 63. A horizontal member 631 is provided on the upper part of the lifting platform 63, and lifting guide wheels 632 are provided at both ends of the horizontal member 631. The lifting guide wheels 632 are embedded in the guide grooves 62 and can roll along the guide grooves 62. The lower part of the lifting platform 63 is fixedly connected to the stirring drive unit 31, i.e., the stirring drive unit 31 is fixed to the lower part of the lifting platform 63 and is also fixedly connected to the end cover 5. Furthermore, the lifting mechanism 6 also includes a lifting drive unit 64, which is fixed to the upper end of the frame 61, and its transmission end is connected to the lifting platform 63. In this embodiment, the lifting drive unit 64 is a lifting motor, with its transmission end connected to a lifting rope. The other end of the lifting rope is fixedly connected to the upper end of the lifting platform 63, i.e., the horizontal member 631. The lifting drive unit 64 drives the lifting rope to be pulled up, so that both the stirring mechanism 3 and the end cover 5 can be controlled to rise and fall. The lifting mechanism 6 facilitates the lifting and lowering operation of the end cover 5 and the stirring mechanism 3, making it convenient for the maintenance and cleaning of the filtration device.

[0044] The battery slurry filtration device in this embodiment, through the cooperation of a multi-form filtration mechanism 1, a stirring mechanism 3, a vacuum mechanism 4, and a lifting mechanism 6, achieves the purposes of filtration, anti-sedimentation, and anti-clogging, thereby improving the production capacity of rapid filtration after battery slurry mixing. Specifically, the stirring mechanism 3 can stir the slurry within the multi-form filtration mechanism 1, and simultaneously works with the vacuum mechanism 4 to achieve rapid filtration of the slurry; furthermore, the stirring mechanism 3 can also clean and scrape the slurry within the multi-form filtration mechanism 1, preventing slurry sedimentation and clogging of the filter outlet. After filtration is completed, the lifting mechanism 6 elevates the stirring mechanism 3, facilitating the cleaning of the multi-form filtration mechanism 1 and the main body 2.

[0045] The following section provides a clearer explanation of the multi-form filtration mechanism 1 and the battery slurry filtration device in this application, using a specific working process as an example.

[0046] System startup and slurry filtration preparation: Start the lifting drive unit 64. Through the transmission action of the lifting drive unit 64, the end cover 5 and the stirring mechanism 3 are lowered until the end cover 5 reaches the predetermined position, ensuring that a good seal and fit are formed between the end cover 5 and the body 2, creating a closed environment for the filtration of lithium battery slurry.

[0047] Battery slurry is injected into the body 2 through the feed port 53 on the surface of the end cap 5. When the lithium battery slurry flows into the filter chamber formed by the multi-morphic filter mechanism 1, the vacuum mechanism 4 is activated. The vacuum mechanism 4 performs intermittent vacuuming operation on the body 2 through the connection port 21, creating a specific pressure difference environment inside the body 2. Under the action of this pressure difference, the slurry moves towards the filter pores, providing power for the subsequent filtration process.

[0048] Slurry filtration process: Under the combined action of gravity and pressure difference, the slurry first contacts the filter disc 12. Due to the specific size and shape of the filter holes in the multi-morphic filter mechanism 1, small particles of slurry fall into the body 2 from the side wall of the filter cylinder 11 and the circular filter holes in the center 121 of the filter disc 12. Medium-sized particles of slurry cannot pass through the circular filter holes and accumulate on the periphery 122 of the filter disc 12. At the same time, under the pressure difference generated by the vacuum mechanism 4, this slurry eventually passes through the polygonal filter holes and falls into the body 2, while slightly larger particles are effectively intercepted above the filter disc 12. The slurry screening is completed in this way to ensure that the slurry entering the subsequent process meets the quality requirements. At the same time, the stirring drive unit 31 is started, driving the stirring shaft 32 and the blade 33 to rotate. During the rotation, the blade 33 stirs and cleans the slurry on the side wall of the filter cylinder 11 and the filter plate 12, effectively preventing the slurry from settling on the side wall of the filter cylinder 11 and the surface of the filter plate 12, avoiding slurry blockage of the filter holes, thereby ensuring the continuity and stability of the filtration process and ensuring filtration efficiency.

[0049] Slurry discharge control after filtration: The filtered slurry is discharged from the discharge port 22 at the bottom of the main body 2. The discharge port 22 is equipped with a butterfly valve. By adjusting the opening of the butterfly valve, the slurry discharge rate can be precisely controlled to meet the requirements of different production processes for discharge speed and discharge rate.

[0050] System maintenance and cleaning operation: When maintenance and cleaning of the filter unit are required, activate the lifting drive unit 64. The belt on the lifting drive unit 64 is connected to the reel of the rope winder. After the lifting drive unit 64 is activated, the belt drives the reel to rotate, thereby realizing the winding and unwinding of the lifting rope. Since one end of the lifting rope is connected to the lifting platform 63, and the lifting platform 63 is connected to the stirring mechanism 3 and the end cover 5, the lifting operation of the stirring mechanism 3 and the end cover 5 is ultimately realized through this mechanical transmission relationship. This operation facilitates the operator to perform comprehensive cleaning and maintenance of the main body 2 and the multi-form filter mechanism 1, ensuring that the performance and hygiene of the filter unit meet production requirements.

[0051] In summary, the battery slurry filtration device in this embodiment utilizes a multi-morphic filtration mechanism 1 to achieve graded filtration of the slurry. Combined with a vacuum mechanism 4, particularly a breathing vacuum mechanism, intermittent pressure fluctuations prevent excessive slurry accumulation, thus achieving dynamic anti-clogging. Furthermore, a stirring mechanism 3 performs real-time scraping and cleaning of the multi-morphic filtration mechanism 1, effectively preventing slurry sedimentation and clogging, comprehensively improving filtration efficiency and adaptability, and ensuring the quality of lithium battery slurry production.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A polymorphic filtering mechanism, characterized by, The utility model relates to a multi-form filter mechanism, comprising: a filter cylinder, the filter cylinder is provided with first filter holes on the surface; a filter disc is arranged at the bottom of the filter cylinder, the filter disc comprises a central part and a peripheral part which is annularly connected with the central part; the central part is arc-shaped convex, and the central part is provided with second filter holes on the surface; the peripheral part is in a plane shape, and the peripheral part is provided with third filter holes on the surface; wherein the first filter holes are smaller than the second filter holes and the third filter holes.

2. The polymorphic filtering mechanism of claim 1, wherein, The first filter holes and the second filter holes are circular, and the third filter holes are polygonal.

3. The polymorphic filtering mechanism of claim 1, wherein, The bottom of the filter cylinder is provided with two or more positioning blocks, and a positioning groove is arranged in the center of each positioning block; the lower end surface of the filter disc is provided with two or more protruding pins, the protruding pins can be matched and inserted into the positioning grooves to realize the fixation of the filter disc and the filter cylinder.

4. A battery slurry filtration apparatus, characterized by, The utility model relates to a multi-form filter mechanism, comprising: a body, the upper side of the body is provided with a connecting port, and the lower side of the body is provided with a discharging port; the multi-form filter mechanism is arranged in the body and does not contact the inner side wall of the body; a stirring mechanism, the stirring mechanism extends into the multi-form filter mechanism, and is used for stirring slurry and cleaning the filter holes of the multi-form filter mechanism; and a vacuum mechanism, the vacuum mechanism is used for vacuumizing the body through the connecting port.

5. The battery slurry filtration apparatus of claim 4, wherein, The top of the body is provided with an end cover; and / or, the end cover is provided with a feeding port; and / or, the end cover comprises an inner area and an outer area which is annularly connected with the inner area, the inner area is made of transparent material, and the outer area is made of stainless steel material.

6. The battery slurry filtration apparatus of claim 5, wherein, The stirring mechanism comprises: a stirring driving part, the stirring driving part is fixedly connected with the end cover; a stirring shaft which is connected with the transmission end of the stirring driving part, the stirring shaft penetrates through the end cover and extends into the multi-form filter mechanism; a plurality of paddles, the paddles are arranged on the end of the stirring shaft which is away from the stirring driving part and are uniformly arranged along the axial direction of the stirring shaft.

7. The battery slurry filtration apparatus of claim 6, wherein, The paddle comprises a first part and a second part, the first part is matched with the inner wall of the filter cylinder and the peripheral part of the filter disc; the second part is connected between the stirring shaft and the first part, and the second part is arc-shaped and matched with the central part of the filter disc.

8. The battery slurry filtration apparatus of claim 7, wherein, The first part is provided with a first through hole on the surface, and the second part is provided with a second through hole on the surface.

9. The battery slurry filtration apparatus of claim 4, wherein, The vacuum mechanism is a breathing type vacuum mechanism.

10. The battery slurry filtration apparatus of claim 4, wherein, Further comprising a lifting mechanism, the lifting mechanism comprises: a frame, the frame is fixedly connected with the body, and the inner sides of the opposite two side faces of the frame are provided with guide grooves; a lifting table, the upper end of the lifting table is provided with a transverse piece, the two end parts of the transverse piece are provided with lifting guide wheels, and the lifting guide wheels are embedded in the guide grooves; the lower end of the lifting table is fixedly connected with the stirring mechanism; a lifting driving part, the lifting driving part is fixed on the frame, and the transmission end of the lifting driving part is connected with the lifting table.

Images