Filtration device

Abstract

This utility model discloses a filtration device, comprising: a cylindrical body, with a first support portion protruding from the inner wall of the cylindrical body in the middle, and a feed inlet formed at the top of the cylindrical body; a filter assembly disposed on the side of the first support portion facing the feed inlet, and filter holes formed on the filter assembly; and an air compressor device disposed at the bottom of the filter assembly and adapted to compress air at the bottom of the cylindrical body. This utility model's filtration device ensures stable installation and improves filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery pulping and filtration, and in particular to a filtration device. Background Technology

[0002] In related technologies, to ensure better coating results for the positive and negative electrode slurries of lithium batteries, the slurry must be filtered before coating. However, existing lithium-ion battery filtration devices cannot guarantee stable filter installation during slurry filtration, and lack a filtration drive device, resulting in a prolonged filtration process and reduced filtration efficiency. Therefore, optimizing the filtration device structure to ensure stable filtration and improve filtration efficiency has become a pressing issue in this field. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a filtration device. The filtration device of this invention ensures stable installation and improves filtration efficiency.

[0004] The filtration device according to this utility model includes: a cylinder, wherein a first support portion protruding from the inner wall of the cylinder is provided in the middle of the cylinder, and a feed inlet is formed at the top of the cylinder; a filter assembly, wherein the filter assembly is disposed on the side of the first support portion facing the feed inlet, and filter holes are formed on the filter assembly; and an air compression device, wherein the air compression device is disposed at the bottom of the filter assembly and is adapted to compress the air at the bottom of the cylinder.

[0005] The filtration device of this utility model supports the filtration component by setting a first support part inside the cylinder, so as to ensure that the filtration component can remain stable when filtering slurry and avoid shaking of the filtration component, which would affect the filtration effect. An air compression device is set at the bottom of the cylinder to create an air pressure difference at the bottom of the cylinder, thereby accelerating the speed at which the medium passes through the filtration component and improving the filtration efficiency of the slurry.

[0006] According to some embodiments of the present invention, the filter assembly includes: a second support portion disposed on top of the first support portion and mutually limiting the first support portion in the height direction of the cylinder; and a filter screen disposed on top of the second support portion.

[0007] According to some embodiments of the present invention, the first support portion is constructed as an annular structure corresponding to the inner wall of the cylinder, and the second support portion is constructed as a circular or annular structure corresponding to the first support portion.

[0008] According to some embodiments of the present invention, the filter screen is constructed as a circular structure, and a plurality of first filter holes extending through the thickness direction are formed on the filter screen, and a plurality of second filter holes extending through the thickness direction are formed on the second support portion.

[0009] According to some embodiments of the present invention, the diameter of the first filter hole is smaller than the diameter of the second filter hole, and the number of the first filter holes is greater than the number of the second filter holes.

[0010] According to some embodiments of the present invention, the filtration device further includes a sealing member, which is disposed on the side of the filter screen away from the first support portion and squeezes the filter screen.

[0011] According to some embodiments of the present invention, the sealing element includes: a sealing portion, the sealing portion being annular in structure and abutting against the outer edge of the filter screen; and a handle portion, the handle portion being disposed on the sealing portion, the end of the handle portion forming a hook.

[0012] According to some embodiments of the present invention, the air compression device includes: a compression pump disposed at the bottom of the cylinder, the compression pump being adapted to draw air from the bottom of the filter assembly to reduce the air pressure at the bottom of the filter assembly; and a compression switch disposed outside the cylinder and electrically connected to the compression pump.

[0013] According to some embodiments of the present invention, a discharge port is formed at the bottom of the cylinder; the filtration device further includes a discharge device, which is disposed at the bottom of the cylinder and adapted to discharge the slurry filtered by the filtration assembly from the discharge port.

[0014] According to some embodiments of the present invention, the discharge device includes: a baffle plate, which is movably disposed on the cylinder and can selectively open and close the discharge port; and a discharge switch, which is disposed outside the cylinder and electrically connected to the baffle plate.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is an internal cross-sectional view of the filter assembly according to some embodiments of the present invention;

[0018] Figure 2This is a structural diagram of the internal structure of the filter assembly according to some embodiments of the present invention;

[0019] Figure 3 This is a schematic diagram of the sealing structure of a filter assembly according to some embodiments of the present invention;

[0020] Figure 4 This is a schematic diagram of the filter structure of a filter assembly according to some embodiments of the present invention;

[0021] Figure 5 This is a schematic diagram of the second support portion of a filter assembly according to some embodiments of the present invention.

[0022] Figure label:

[0023] Filter device 1;

[0024] Cylinder 11, First support part 111;

[0025] Filter assembly 12; second support part 13; second filter hole 131;

[0026] Filter screen 14, first filter hole 141;

[0027] Seal 15, sealing part 151, handle part 152;

[0028] Compression switch 16; discharge switch 17. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In related technologies, to ensure better coating results for the positive and negative electrode slurries of lithium batteries, the slurry must be filtered before coating. However, existing lithium-ion battery filtration devices cannot guarantee stable filter installation during slurry filtration, and lack a filtration drive device, resulting in a prolonged filtration process and reduced filtration efficiency. Therefore, optimizing the filtration device structure to ensure stable filtration and improve filtration efficiency has become a pressing issue in this field.

[0031] The following is for reference. Figures 1-5 A filtration device according to an embodiment of the present invention is described.

[0032] The filter device 1 according to the present invention includes: a cylinder 11, a first support portion 111 protruding from the inner wall of the cylinder 11 is provided in the middle of the cylinder 11, and a feed inlet is formed at the top of the cylinder 11; a filter assembly 12, which is disposed on the side of the first support portion 111 facing the feed inlet, and filter holes are formed on the filter assembly 12; and an air compression device, which is disposed at the bottom of the filter assembly 12 and is adapted to compress the air at the bottom of the cylinder 11.

[0033] Specifically, the interior of the cylinder 11 forms a hollow filtration space. A first support portion 111 protruding from the inner wall of the cylinder 11 is located in the middle of the cylinder 11. The first support portion 111 supports and positions the filter assembly 12. A feed inlet is located at the top of the cylinder 11 for feeding the slurry to be filtered into the device. The filter assembly 12 is located on the side of the first support portion 111 facing the feed inlet, i.e., in the upper space inside the cylinder 11. The filter assembly 12 has numerous filter holes. The filter assembly 12 separates and filters the slurry entering the cylinder 11 through these filter holes, trapping unwanted impurities outside the filter assembly 12 while allowing the desired medium to pass through. An air compressor is located at the bottom of the filter assembly 12 and is connected to the bottom space of the cylinder 11. The air compressor compresses the air at the bottom of the cylinder 11, generating a pressure difference that helps improve filtration efficiency. For example, it can accelerate the speed at which the medium passes through the filter holes, or the pressure difference can cause impurities to adhere more tightly to the filter assembly 12, facilitating subsequent cleaning and recycling. When the slurry to be filtered enters the cylinder 11 through the feed inlet, it first comes into contact with the filter assembly 12. Under the action of the filter assembly 12, the medium enters the lower space of the cylinder 11 through the filter holes, while impurities are trapped on the outside of the filter assembly 12. At the same time, the air compressor generates compressed air at the bottom of the cylinder 11, creating a certain pressure difference, which helps to improve the filtration efficiency. Finally, the filtered medium can be discharged from the bottom or side of the cylinder 11, while impurities can be removed by periodically cleaning the filter assembly 12.

[0034] According to the present invention, the filter device 1 supports the filter assembly 12 by setting a first support part 111 inside the cylinder 11, so as to ensure that the filter assembly 12 can remain stable when filtering the slurry and avoid the filter assembly 12 from shaking and affecting the filtration effect. An air compression device is set at the bottom of the cylinder 11 to create an air pressure difference at the bottom of the cylinder 11, thereby accelerating the speed of the medium passing through the filter assembly 12 and improving the filtration efficiency of the slurry.

[0035] According to some embodiments of the present invention, the filter assembly 12 includes: a second support portion 13, which is disposed on the top of the first support portion 111 and is limited and cooperated with the first support portion 111 in the height direction of the cylinder 11; and a filter screen 14, which is disposed on the top of the second support portion 13.

[0036] Specifically, the second support 13 is disposed on top of the first support 111 and forms a limiting fit with the first support 111 in the height direction of the cylinder 11, ensuring the stable installation and positioning of the filter assembly 12 within the cylinder 11, preventing the filter screen 14 from shifting or deforming during the filtration process, thereby ensuring the filtration effect. The filter screen 14 is disposed on top of the second support 13, and multiple filter holes are formed on the filter screen 14. The filter screen 14 has mesh sizes of 120 mesh, 150 mesh, and 200 mesh, depending on the slurry requirements, filtering out impurities in the medium entering the cylinder 11. Due to the limiting fit between the second support 13 and the first support 111, the filter screen 14 remains stable during the filtration process and will not shift or deform due to the impact of the medium. Finally, the filtered medium can be discharged from the bottom or side of the cylinder 11, while impurities can be removed by periodically cleaning the filter screen 14. This not only improves the filtration efficiency but also ensures the stability and durability of the filter assembly 12. Meanwhile, the detachable design of the filter screen 14 and the second support 13 makes the maintenance and replacement of the filter assembly 12 more convenient.

[0037] According to some embodiments of the present invention, the first support part 111 is constructed as an annular structure corresponding to the inner wall of the cylinder 11, and the second support part 13 is constructed as a circular or annular structure corresponding to the first support part 111.

[0038] Specifically, the first support portion 111 is constructed as an annular structure corresponding to the inner wall of the cylinder 11. The first support portion 111 extends along the inner wall of the cylinder 11, forming a continuous annular support surface. This annular structure of the first support portion 111 not only provides stable support but also ensures the correct installation and positioning of the filter assembly 12 within the cylinder 11. Simultaneously, the annular structure helps to distribute and withstand pressure from the filter assembly 12 and the medium, improving the overall stability of the device. The second support portion 13 is constructed as a circular or annular structure corresponding to the first support portion 111, ensuring that the shape and size of the second support portion 13 match the first support portion 111, guaranteeing a tight fit and limiting effect between them. The circular or annular structure of the second support portion 13, together with the first support portion 111, forms a stable support system, ensuring the stability and durability of the filter screen 14 during the filtration process. This structure also helps to simplify the installation and disassembly process, making the maintenance and replacement of the filter assembly 12 more convenient.

[0039] According to some embodiments of the present invention, the filter screen 14 is constructed as a circular structure, and a plurality of first filter holes 141 extending through the thickness direction are formed on the filter screen 14, and a plurality of second filter holes 131 extending through the thickness direction are formed on the second support portion 13.

[0040] Specifically, the filter screen 14 is constructed in a circular shape to match the shape of the second support 13, ensuring that the filter screen 14 can be stably installed on the second support 13 and form a continuous filter surface. Multiple first filter holes 141 are formed on the filter screen 14. The size, shape, and distribution of these holes are determined according to filtration requirements to ensure effective impurity trapping and allow media passage. The filter screen 14 filters out impurities in the media entering the cylinder 11 through the first filter holes 141. When the slurry passes through the filter screen 14, impurities are trapped in the first filter holes 141 on or inside the surface of the filter screen 14, while the pure slurry continues to flow through the first filter holes 141. The second support 13 is constructed in a circular or annular structure corresponding to the first support 111, matching the shape of the filter screen 14. Multiple second filter holes 131 are formed on the second support 13. When the first filter holes 141 fail due to blockage or wear, the second filter holes 131 can serve as backup channels to ensure the media can continue to pass through.

[0041] According to some embodiments of the present invention, the diameter of the first filter hole 141 is smaller than the diameter of the second filter hole 131, and the number of the first filter holes 141 is greater than the number of the second filter holes 131.

[0042] Specifically, a plurality of first filter holes 141 are formed on the filter screen 14, the diameter of which is smaller than that of the second filter holes 131. This ensures that the filter screen 14 can more effectively trap impurities, as the smaller pore size can block finer particles. The number of first filter holes 141 is greater than the number of second filter holes 131, ensuring sufficient flow rate and filtration efficiency. A plurality of second filter holes 131 are formed on the second support portion 13, the diameter of which is larger than that of the first filter holes 141. The larger pore size allows the second filter holes 131 to allow a larger flow rate under certain conditions, or to provide additional filtration capacity as a backup channel when the filter screen 14 is clogged, ensuring smooth flow of the media.

[0043] According to some embodiments of the present invention, the filter device 1 further includes a sealing member 15, which is disposed on the side of the filter screen 14 away from the first support portion 111 and squeezes the filter screen 14.

[0044] Specifically, the sealing element 15 is disposed on the side of the filter screen 14 away from the first support part 111, that is, the top of the filter screen 14 or the side facing the medium inflow. The sealing element 15 can squeeze the filter screen 14 to ensure a tight contact between the filter screen 14 and the second support part 13, which helps to prevent the medium from flowing directly out around the filter screen 14, thereby improving the filtration efficiency. When the slurry to be filtered enters the cylinder 11 through the feed port, it first contacts the filter screen 14. Under the action of the filter screen 14, impurities in the medium are trapped in the first filter holes 141 on the surface or inside of the filter screen 14. The sealing element 15 squeezes the filter screen 14 to ensure a tight contact between the filter screen 14 and the second support part 13, thereby preventing the medium from flowing directly out around the filter screen 14, improving the filtration efficiency, and also increasing the sealing of the filtration device 1. It ensures a tight contact between the filter screen 14 and adjacent components, which can prevent medium leakage and contamination, thereby improving the reliability and stability of the entire filtration system.

[0045] According to some embodiments of the present invention, the sealing member 15 includes: a sealing part 151, which is annular and abuts against the outer edge of the filter screen 14; and a handle part 152, which is disposed on the sealing part 151 and has a hook at its end.

[0046] Specifically, the sealing portion 151 is constructed in an annular shape, tightly abutting against the outer edge of the filter screen 14. The annular design ensures that the sealing portion 151 is evenly distributed along the edge of the filter screen 14, forming an effective sealing barrier. The sealing portion 151 prevents slurry from flowing directly around the filter screen 14, ensuring that all slurry is filtered by the filter screen 14. The annular design also provides a larger contact area, enhancing the sealing effect. A handle portion 152 is provided on the sealing portion 151 and is located on the outside or top of the sealing portion 151. The end of the handle portion 152 forms a hook, allowing the user to easily lift, install, or remove the seal 15 and the filter screen 14 for cleaning or replacement.

[0047] According to some embodiments of the present invention, the air compression device includes: a compression pump, which is disposed at the bottom of the cylinder 11 and is adapted to draw air from the bottom of the filter assembly 12 to reduce the air pressure at the bottom of the filter assembly 12; and a compression switch 16, which is disposed outside the cylinder 11 and electrically connected to the compression pump.

[0048] Specifically, the compressor pump is located at the bottom of the cylinder 11, allowing it to effectively extract air from the bottom of the filter assembly 12. This air extraction reduces the air pressure in that area, creating a pressure difference that facilitates smoother passage of the slurry through the filter screen 14, improving filtration efficiency. Furthermore, reducing the bottom air pressure may help prevent clogging of the filter screen 14 or promote the removal of blockages. The compressor switch 16 is located on the outside of the cylinder 11 for easy user operation. It is typically located on the side or top of the cylinder 11 for easy access. The compressor switch 16 is electrically connected to the compressor pump, and its operation is started and stopped by turning it on and off. The compressor switch 16 provides users with convenient control over the compressor pump's operation, allowing them to turn it on or off as needed to adjust the air pressure at the bottom of the filter assembly 12.

[0049] According to some embodiments of the present invention, a discharge port is formed at the bottom of the cylinder 11; the filter device 1 further includes a discharge device, which is disposed at the bottom of the cylinder 11 and is adapted to discharge the slurry filtered by the filter assembly 12 from the discharge port.

[0050] Specifically, the discharge port is formed at the bottom of the cylinder 11 to facilitate the smooth discharge of the filtered slurry from the cylinder 11. The discharge port may be constructed in a circular or rectangular shape to ensure smooth slurry flow. A discharge device is located at the bottom of the cylinder 11 and connected to the discharge port, ensuring effective slurry discharge. When the filtration process is complete, the filtered slurry will accumulate near the discharge port at the bottom of the cylinder 11. At this time, the discharge device can be activated to discharge the slurry from the discharge port and transport it to a collection container or other processing equipment outside the cylinder 11. This improves the efficiency and reliability of the filtration device 1 and also enhances its operational flexibility.

[0051] According to some embodiments of the present invention, the discharge device includes: a baffle plate, which is movably disposed on the cylinder 11 and can selectively open and close the discharge port; and a discharge switch 17, which is disposed outside the cylinder 11 and electrically connected to the baffle plate.

[0052] Specifically, a baffle plate is movably disposed inside the cylinder 11, typically located above or in front of the discharge port. The baffle plate can move up and down, left and right, or rotate as needed to selectively open and close the discharge port. When the baffle plate closes the discharge port, slurry is prevented from being discharged from the cylinder 11; when the baffle plate opens the discharge port, slurry can flow out smoothly. Slurry discharge can be controlled at any time as needed. The discharge switch 17 is located outside the cylinder 11 for easy user operation. It is typically located on the side or top of the cylinder 11 to ensure easy access for the user. The discharge switch 17 is electrically connected to the baffle plate, and the movement of the baffle plate is driven by controlling the opening and closing of the switch. This electrical connection can be achieved through a motor, electromagnet, or other electric device. The discharge switch 17 provides users with convenient control over the movement of the baffle plate. Users can easily open or close the baffle plate by operating the discharge switch 17, thereby controlling the discharge of slurry, which not only improves work efficiency but also reduces operational difficulty and cost.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0055] In the description of this utility model, "multiple" means two or more.

[0056] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0057] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter device, characterized in that include: A cylinder (11) is provided in the middle of which a first support part (111) protrudes from the inner wall of the cylinder (11), and a feed inlet is formed at the top of the cylinder (11). A filter assembly (12) is disposed on the side of the first support (111) facing the feed inlet, and filter holes are formed on the filter assembly (12); A sealing element (15) is disposed on the side of the filter assembly (12) away from the first support (111) and squeezes the filter assembly (12). The sealing element (15) includes a sealing part (151) and a handle part (152). The sealing part (151) is constructed as annular and abuts against the outer edge of the filter screen (14). The handle part (152) is disposed on the sealing part (151), and the end of the handle part (152) forms a hook. An air compression device is disposed at the bottom of the filter assembly (12) and is adapted to compress the air at the bottom of the cylinder (11).

2. The filter device of claim 1, wherein, The filter assembly (12) includes: The second support part (13) is disposed on the top of the first support part (111) and is limited and cooperated with the first support part (111) in the height direction of the cylinder (11); A filter screen (14) is disposed on the top of the second support (13).

3. The filter device of claim 2, wherein, The first support part (111) is constructed as an annular structure corresponding to the inner wall of the cylinder (11), and the second support part (13) is constructed as a circular or annular structure corresponding to the first support part (111).

4. The filter device of claim 3, wherein, The filter screen (14) is constructed in a circular structure. Multiple first filter holes (141) are formed on the filter screen (14) in the thickness direction. Multiple second filter holes (131) are formed on the second support part (13) in the thickness direction.

5. The filter device of claim 4, wherein, The diameter of the first filter hole (141) is smaller than the diameter of the second filter hole (131), and the number of the first filter holes (141) is greater than the number of the second filter holes (131).

6. The filter device according to any one of claims 1-5, characterized in that The air compression device includes: A compression pump is provided at the bottom of the cylinder (11) and is adapted to draw air from the bottom of the filter assembly (12) to reduce the air pressure at the bottom of the filter assembly (12). A compression switch (16) is disposed outside the cylinder (11) and electrically connected to the compression pump.

7. The filter device of claim 6, wherein, The bottom of the cylinder (11) forms a discharge port; The filtration device further includes: A discharge device is provided at the bottom of the cylinder (11) and is adapted to discharge the slurry filtered by the filter assembly (12) from the discharge port.

8. The filter device of claim 7, wherein, The discharge device includes: A baffle plate is movably disposed on the cylinder (11) and can be selectively opened or closed at the discharge port; The discharge switch (17) is located outside the cylinder (11) and electrically connected to the baffle plate.

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