Battery slurry filtering device

Abstract

The utility model discloses a battery slurry filtering device, and relates to the technical field of battery manufacturing. The battery slurry filtering device comprises a transfer barrel with an opening in the upper end, the upper end of the transfer barrel is detachably connected with a filtering cylinder extending upwards, a filtering plate is arranged in the filtering cylinder, and the filtering plate divides an inner cavity of the filtering cylinder into a feeding cavity located above the filtering plate and a discharging cavity located below the filtering plate; and the discharging cavity is used for being communicated with a vacuum assembly arranged outside the filter cartridge. The battery slurry filtering device provided by the embodiment of the utility model is used for filtering battery slurry; and negative pressure can be generated in the discharging cavity of the filter cartridge by utilizing the vacuum assembly, so that the filtering speed of the battery slurry is accelerated, the filtering efficiency is remarkably improved, and the requirement of battery manufacturing on high-efficiency production is met.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a battery slurry filtering device. Background Art

[0002] Battery manufacturing is an important part of the field of new energy technology, and the preparation of battery slurry is a key link in the battery manufacturing process, which directly affects the performance and production cost of the battery.

[0003] Battery slurry is usually a mixture of active materials, conductive agents, binders and solvents, and needs to be filtered to remove impurities and undispersed particles to ensure the uniformity of the slurry and the long-term stability of the battery.

[0004] Traditional filtration methods often rely on the gravity of battery slurry for filtration, which has slow filtration speed and low filtration efficiency and cannot meet the battery manufacturing demand for high-efficiency production. Utility Model Content

[0005] The purpose of the present application is to provide a battery slurry filtering device to solve the problem of low filtering efficiency.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A battery slurry filtering device comprises a transfer barrel with an opening at the upper end, wherein the upper end of the transfer barrel is detachably connected to a filter cartridge extending upward, wherein a filter plate is arranged in the filter cartridge, and the filter plate divides the inner cavity of the filter cartridge into a feed cavity located above the filter plate and a discharge cavity located below the filter plate, and the discharge cavity is used to communicate with a vacuum component arranged outside the filter cartridge.

[0008] Furthermore, a vertically arranged vacuum guide tube is provided in the discharge chamber, the upper end of the vacuum guide tube is connected to one end of a vacuum connecting tube, and the other end of the vacuum connecting tube passes through the filter cartridge and extends to the outside of the filter cartridge and is used to communicate with the vacuum component.

[0009] Furthermore, the inner surface of the filter cartridge is connected to a protective plate located in the discharge cavity, and a protective cavity with an open lower end is formed between the two, and the vacuum guide tube is arranged in the protective cavity.

[0010] Furthermore, the protective plate includes an upper baffle connected to the filter cartridge, the bottom of the upper baffle is connected to a side baffle extending downward, and both sides of the side baffle are respectively connected to the inner surface of the filter cartridge.

[0011] Furthermore, the vacuum component includes a vacuum pump or a vacuum tank.

[0012] Furthermore, the filter cylinder includes an upper cylinder and a lower cylinder, the filter plate is connected to the upper cylinder, the lower end of the upper cylinder is detachably connected to the upper end of the lower cylinder, and the lower end of the lower cylinder is connected to the upper end of the transfer barrel.

[0013] Furthermore, the lower end of the upper cylinder is connected to an upper flange, the upper end of the lower cylinder is connected to a lower flange, a sealing gasket is provided between the upper flange and the lower flange, and the upper flange is connected to the lower flange through a first connecting member.

[0014] Furthermore, the upper end of the transfer barrel is arranged in the inner cavity of the filter cartridge and abuts against a support ring fixed in the filter cartridge. A sealing ring is arranged between the outer surface of the transfer barrel and the inner surface of the filter cartridge. The transfer barrel is connected to the filter cartridge via a second connecting member.

[0015] Furthermore, the inner surface of the filter cartridge is provided with a positioning groove for positioning the sealing ring.

[0016] Furthermore, the second connecting member includes a buckle.

[0017] Beneficial effects of this application:

[0018] The battery slurry filtering device provided in the embodiment of the present application is used to filter battery slurry; the vacuum component can be used to generate negative pressure in the discharge chamber of the filter cylinder, thereby accelerating the filtration speed of the battery slurry, thereby significantly improving the filtration efficiency and meeting the battery manufacturing demand for high-efficiency production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic structural diagram of a battery slurry filtering device provided in an embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the structure in which the upper cylinder and the lower cylinder are connected;

[0022] Figure 3 It is a schematic diagram of the structure of the connection between the filter cartridge and the transfer barrel;

[0023] Figure 4 It is a schematic diagram of the structure of the connection between the protective plate and the filter cartridge;

[0024] Figure 5 yes Figure 4 Sectional view along line AA.

[0025] Reference numerals:

[0026] 10- Transfer bucket;

[0027] 11- filter cartridge;

[0028] 111-feeding chamber; 112-discharging chamber; 113-upper cylinder; 114-lower cylinder;

[0029] 12- filter plate;

[0030] 13- Vacuum assembly;

[0031] 14- vacuum guide tube;

[0032] 15- vacuum connection pipe;

[0033] 16-protective plate;

[0034] 161-upper baffle; 162-side baffle;

[0035] 17-protection cavity;

[0036] 18-upper flange;

[0037] 19-lower flange;

[0038] 20-sealing gasket;

[0039] 21- first connecting member;

[0040] 22-support ring;

[0041] 23- sealing ring;

[0042] 24- second connecting member;

[0043] 25-Location slot. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0045] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0046] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0047] See also Figure 1 A battery slurry filtering device provided in an embodiment of the present application includes a transfer barrel 10 with an opening at the upper end, and the upper end of the transfer barrel 10 is detachably connected to a filter cartridge 11 extending upward, and a filter plate 12 is arranged in the filter cartridge 11. The filter plate 12 divides the inner cavity of the filter cartridge 11 into a feed cavity 111 located above the filter plate 12 and a discharge cavity 112 located below the filter plate 12, and the discharge cavity 112 is used to communicate with a vacuum component 13 arranged outside the filter cartridge 11.

[0048] See also Figure 1 The transfer barrel 10 is an upper open structure, which is used to hold the filtered battery slurry and transfer the filtered battery slurry to the next process. The filter barrel 11 is an upper and lower open structure, the filter barrel 11 is vertically arranged, and its lower end is detachably connected to the upper end of the transfer barrel 10. The filter plate 12 is mainly made of a porous plate, which is used to achieve solid-liquid separation. The filter plate 12 is connected to the filter barrel 11, and divides the inner cavity of the filter barrel 11 into a feed cavity 111 and a discharge cavity 112; wherein the feed cavity 111 is located above the filter plate 12, and the discharge cavity 112 is located below the filter plate 12 and is connected to the inner cavity of the transfer barrel 10. The vacuum component 13 is a device for achieving and maintaining a negative pressure environment, which may include a vacuum pump, a vacuum tank or a workshop vacuum system. The vacuum component 13 is connected to the discharge cavity 112, and is used to achieve a negative pressure condition in the discharge cavity 112.

[0049] See also Figure 1 The battery slurry filtering device provided in the embodiment of the present application is used to filter the battery slurry. The specific filtering process is: the battery slurry is fed into the feed chamber 111 from the upper end opening of the filter cylinder 11, the battery slurry flows downward and passes through the filter plate 12, and the impurities and undispersed particles are intercepted by the filter plate 12, and the filtered battery slurry enters the discharge chamber 112 and flows into the transfer barrel 10 under the action of gravity; at the same time, the vacuum component 13 is started to put the discharge chamber 112 under negative pressure conditions. Since the pressure in the feed chamber 111 is higher than the pressure in the discharge chamber 112, the battery slurry in the feed chamber 111 can be accelerated to pass through the filter plate 12 and enter the discharge chamber 112 under the action of the pressure difference.

[0050] Therefore, the battery slurry filtering device provided in the embodiment of the present application can generate negative pressure in the discharge chamber 112 of the filter cylinder 11 by using the vacuum component 13, thereby accelerating the filtering speed of the battery slurry, thereby significantly improving the filtering efficiency and meeting the battery manufacturing demand for high-efficiency production.

[0051] In some embodiments, see Figure 1 A vertically arranged vacuum guide tube 14 is provided in the discharge chamber 112 , the upper end of the vacuum guide tube 14 is connected to one end of a vacuum connecting tube 15 , the other end of the vacuum connecting tube 15 passes through the filter cartridge 11 and extends to the outside of the filter cartridge 11 and is used to communicate with the vacuum component 13 .

[0052] The vacuum component 13 is connected to the discharge chamber 112 through the vacuum connecting pipe 15 and the vacuum guide tube 14 in sequence, so that the discharge chamber 112 can reach a negative pressure condition by using the vacuum component 13. Since the vacuum guide tube 14 is vertically arranged and its lower end is opened to form an air inlet, the risk of battery slurry being sucked into the vacuum guide tube 14 during the downward flow process can be reduced, thereby reducing the risk of blockage of the vacuum component 13.

[0053] In some embodiments, see Figure 1 The inner surface of the filter cylinder 11 is connected with a protective plate 16 located in the discharge chamber 112, and a protective chamber 17 with an opening at the lower end is formed between the two, and the vacuum guide tube 14 is arranged in the protective chamber 17. When the battery slurry is filtered by the filter plate 12 and flows downward in the discharge chamber 112, the protective plate 16 can not only protect the vacuum guide tube 14 to prevent the battery slurry from sticking to the vacuum guide tube 14, but also ensure a safe distance between the battery slurry and the vacuum guide tube 14, further reducing the risk of the battery slurry being sucked into the vacuum guide tube 14 during the downward flow.

[0054] For example, see Figure 4 , Figure 5 The protective plate 16 includes an upper baffle 161 connected to the filter cartridge 11, and a side baffle 162 extending downward is connected to the bottom of the upper baffle 161, and both sides of the side baffle 162 are respectively connected to the inner surface of the filter cartridge 11. For example, the upper baffle 161 is horizontally arranged and one side thereof is welded to the inner surface of the filter cartridge 11, and the side baffle 162 is an arc-shaped structure, and the upper end of the side baffle 162 is welded to the bottom of the upper baffle 161, and both sides of the side baffle 162 are respectively welded to the inner surface of the filter cartridge 11, and a protective cavity 17 is enclosed between the upper baffle 161, the side baffle 162 and a part of the inner surface of the filter cartridge 11.

[0055] The filter cartridge 11 may be an integral structure, and the filter plate 12 is connected to the middle of the filter cartridge 11 .

[0056] In some embodiments, see Figure 1The filter cartridge 11 includes an upper cylinder 113 and a lower cylinder 114, the filter plate 12 is connected to the upper cylinder 113, the lower end of the upper cylinder 113 is detachably connected to the upper end of the lower cylinder 114, and the lower end of the lower cylinder 114 is connected to the upper end of the transfer barrel 10. By setting the upper cylinder 113 and the lower cylinder 114 to be detachably connected, it is convenient to separate the two so as to clean and replace the filter plate 12.

[0057] The upper cylinder 113 and the lower cylinder 114 may be connected by a flange bolt structure, a threaded structure, or a snap-fit ​​structure, which is not specifically limited here.

[0058] In some embodiments, see Figure 1 , Figure 2 The lower end of the upper cylinder 113 is connected to an upper flange 18 , the upper end of the lower cylinder 114 is connected to a lower flange 19 , a sealing gasket 20 is provided between the upper flange 18 and the lower flange 19 , and the upper flange 18 is connected to the lower flange 19 through a first connecting member 21 .

[0059] Exemplarily, the upper flange 18 and the lower flange 19 are both annular structures, the upper flange 18 is welded to the outer surface of the lower end of the upper cylinder 113, and the lower flange 19 is welded to the outer surface of the upper end of the lower cylinder 114; the lower end surface of the upper flange 18 and the upper end surface of the lower flange 19 are matching sealing surfaces, and the sealing gasket 20 is arranged between the two sealing surfaces.

[0060] The first connecting member 21 is used to connect the upper flange 18 and the lower flange 19 together, and to achieve sealing of the connection position between the upper cylinder 113 and the lower cylinder 114 through the sealing gasket 20 between the upper flange 18 and the lower flange 19. The first connecting member 21 may be a bolt structure, and in order to facilitate disassembly and improve installation and disassembly efficiency, the first connecting member 21 may be a clamp structure.

[0061] The transfer barrel 10 and the lower barrel 114 of the filter barrel 11 may be connected by a flange bolt structure.

[0062] In some embodiments, see Figure 3 , the upper end of the transfer barrel 10 is arranged in the inner cavity of the filter cartridge 11 and abuts against the support ring 22 fixed in the filter cartridge 11, a sealing ring 23 is arranged between the outer surface of the transfer barrel 10 and the inner surface of the filter cartridge 11, and the transfer barrel 10 is connected to the filter cartridge 11 through a second connecting member 24. In order to improve the accuracy of the positioning of the sealing ring 23, a positioning groove 25 for positioning the sealing ring 23 is arranged on the inner surface of the filter cartridge 11. Among them, the positioning groove 25 can be a circle of annular grooves directly arranged on the inner surface of the filter cartridge 11. Of course, a circle of positioning rings located below the support ring 22 can also be welded on the inner surface of the filter cartridge 11, and a positioning groove 25 can be formed between the support ring 22 and the positioning ring.

[0063] The second connecting member 24 is used to connect the transfer barrel 10 and the filter cartridge 11 together, and the sealing of the connection position between the transfer barrel 10 and the filter cartridge 11 is achieved by a sealing ring 23 provided between the outer surface of the transfer barrel 10 and the inner surface of the filter cartridge 11. In order to facilitate disassembly and improve installation and disassembly efficiency, the second connecting member 24 can be a buckle or a lock buckle. For example, a plurality of hooks are evenly distributed and fixed along the circumference of the filter cartridge 11, and an elastic clamping ring corresponding to the hooks is fixed along the circumference of the transfer barrel 10. After the filter cartridge 11 and the transfer barrel 10 are assembled, it is only necessary to clamp the elastic clamping ring on the corresponding hook. Compared with the bolt structure, there is no need for a cumbersome bolt tightening process, which improves the installation and disassembly efficiency.

[0064] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A battery slurry filtering device, characterized in that: The invention comprises a transfer barrel (10) with an opening at the upper end, wherein the upper end of the transfer barrel (10) is detachably connected to a filter cartridge (11) extending upward, wherein a filter plate (12) is arranged inside the filter cartridge (11), wherein the filter plate (12) divides the inner cavity of the filter cartridge (11) into a feed cavity (111) located above the filter plate (12) and a discharge cavity (112) located below the filter plate (12), wherein the discharge cavity (112) is used to communicate with a vacuum component (13) arranged outside the filter cartridge (11).

2. The battery slurry filtering device according to claim 1, characterized in that: A vertically arranged vacuum guide tube (14) is provided in the discharge chamber (112); the upper end of the vacuum guide tube (14) is connected to one end of a vacuum connecting tube (15); the other end of the vacuum connecting tube (15) passes through the filter cartridge (11) and extends to the outside of the filter cartridge (11) and is used to communicate with the vacuum component (13).

3. The battery slurry filtering device according to claim 2, characterized in that: The inner surface of the filter cartridge (11) is connected to a protective plate (16) located in the discharge cavity (112), and a protective cavity (17) with an open lower end is formed between the two. The vacuum guide tube (14) is arranged in the protective cavity (17).

4. The battery slurry filtering device according to claim 3, characterized in that: The protective plate (16) comprises an upper baffle (161) connected to the filter cartridge (11); the bottom of the upper baffle (161) is connected to a side baffle (162) extending downward; and both sides of the side baffle (162) are respectively connected to the inner surface of the filter cartridge (11).

5. The battery slurry filtering device according to claim 1, characterized in that: The vacuum component (13) comprises a vacuum pump or a vacuum tank.

6. The battery slurry filtering device according to claim 1, characterized in that: The filter cylinder (11) comprises an upper cylinder (113) and a lower cylinder (114); the filter plate (12) is connected to the upper cylinder (113); the lower end of the upper cylinder (113) is detachably connected to the upper end of the lower cylinder (114); and the lower end of the lower cylinder (114) is connected to the upper end of the transfer barrel (10).

7. The battery slurry filtering device according to claim 6, characterized in that: The lower end of the upper cylinder (113) is connected to an upper flange (18), the upper end of the lower cylinder (114) is connected to a lower flange (19), a sealing gasket (20) is provided between the upper flange (18) and the lower flange (19), and the upper flange (18) is connected to the lower flange (19) via a first connecting member (21).

8. The battery slurry filtering device according to claim 1, characterized in that: The upper end of the transfer barrel (10) is arranged in the inner cavity of the filter cartridge (11) and abuts against a support ring (22) fixed in the filter cartridge (11); a sealing ring (23) is arranged between the outer surface of the transfer barrel (10) and the inner surface of the filter cartridge (11); and the transfer barrel (10) is connected to the filter cartridge (11) via a second connecting member (24).

9. The battery slurry filtering device according to claim 8, characterized in that: The inner surface of the filter cartridge (11) is provided with a positioning groove (25) for positioning the sealing ring (23).

10. The battery slurry filtering device according to claim 8, characterized in that: The second connecting member (24) comprises a buckle.

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