Membrane electrode slurry filtration device

Abstract

The application provides a membrane electrode slurry filtering device, which comprises a tank body (1), a tank body cover (2) is threadedly connected to the tank body (1), a through hole structure (201) is arranged in the central region of the tank body cover (2), a plurality of L-shaped grooves (202) are arranged on the circumferential sidewall of the through hole structure (201), a plurality of convex points (301) are arranged on the outer circumferential surface of the lower end of a filtering funnel (3), the lower end of the filtering funnel (3) is adapted to be inserted into the through hole structure (201), and each convex point (301) is adapted to be clamped with each corresponding L-shaped groove (202). The membrane electrode slurry filtering device has the advantages of simple structure, convenient operation and good use effect.

Description

Technical Field

[0001] This application relates to the field of membrane electrode slurry production technology, and in particular to a membrane electrode slurry filtration device. Background Technology

[0002] In the preparation of membrane electrode slurry, the ball-milled slurry needs to be filtered into a container. During ball milling, a certain proportion of zirconium beads of varying sizes are present in the milling jar. This slurry mixed with zirconium beads needs to be filtered into the container to prepare for the next process. Separating the zirconium beads from the slurry is crucial, but due to the high viscosity and high solids content of the membrane electrode slurry, a large amount of slurry adheres to the surface of the zirconium beads. Furthermore, the slurry contains a certain proportion of platinum metal, making the filtration process difficult and requiring extreme care to avoid waste.

[0003] Currently, a commonly used filtration method involves placing a simple screen above a container and pouring the milled slurry into the screen for filtration. Because a large amount of slurry adheres to the surface of the zircon beads, this process requires two people: one to stabilize the bottom of the container, and the other to shake the screen to filter as much slurry as possible from the zircon beads into the container. However, since the screen and container are separate, with a gap in between, the slurry easily spills out during filtration; furthermore, the screen is relatively low, making it easy for the zircon beads to fall off during shaking, inevitably leading to waste during the filtration process. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a membrane electrode slurry filtration device, which can simplify the filtration process of membrane electrode slurry, effectively solve the problem of filtration stability, effectively avoid the problem of material waste, and has good performance.

[0005] To solve the above-mentioned technical problems, this application provides a membrane electrode slurry filtration device, including a tank body with a tank cover threadedly connected to it. The central area of ​​the tank cover has a through hole structure, and the four sides of the through hole structure have multiple L-shaped grooves. The lower outer circumferential surface of the filter funnel has multiple protrusions. The lower end of the filter funnel is adapted to be inserted into the through hole structure, and each of the protrusions is adapted to engage with the corresponding L-shaped groove.

[0006] In some embodiments, the can body is formed as a cylindrical structure with one end open, and the inner circumferential surface and the inner bottom surface of the can body are provided with a ceramic coating or a phosphate coating, or the can body is provided with a ceramic liner or a glass enamel liner.

[0007] In some embodiments, the outer bottom surface of the tank is also provided with an anti-slip pad.

[0008] In some embodiments, the filter funnel includes an upper bucket portion and a lower mounting portion integrally connected, and a filter screen is provided at the connection between the upper bucket portion and the lower mounting portion.

[0009] In some embodiments, the inner circumferential diameter of the lower mounting portion is smaller than the inner circumferential diameter of the lower end of the upper bucket portion, so that a stepped surface can be formed between the upper bucket portion and the lower mounting portion, and the filter screen is disposed on the stepped surface.

[0010] In some embodiments, the protrusions are formed as hemispherical structures and are uniformly connected to the outer peripheral surface of the lower mounting portion.

[0011] In some embodiments, the upper bucket is formed as a funnel-shaped structure with the opening gradually decreasing from top to bottom.

[0012] In some embodiments, the filter screen is a fine porous material filter screen with a pore size of 5-500 μm.

[0013] In some embodiments, a latch is provided on the inner circumferential surface of the connection between the upper bucket and the lower mounting portion to secure the filter screen.

[0014] In some embodiments, the L-shaped groove includes a vertical groove and a horizontal groove, one end of the vertical groove is connected to the horizontal groove, and the other end extends to the upper surface of the can lid.

[0015] The membrane electrode slurry filtration device provided by this application, through the above technical solution, includes a tank body with a tank cover threaded onto it. The central area of ​​the tank cover has a through-hole structure, and the surrounding sidewalls of the through-hole structure have multiple L-shaped grooves. The lower outer circumferential surface of the filter funnel has multiple protrusions, and the lower end of the filter funnel is adapted to be inserted into the through-hole structure. Each protrusion is adapted to engage with its corresponding L-shaped groove. The membrane electrode slurry filtration device provided by this application addresses the inconveniences encountered in the existing membrane electrode slurry preparation process by placing a filter screen in the filter funnel and securing the filter funnel to the funnel cover. This not only effectively avoids slurry spillage and zirconium bead drop during filtration but also eliminates the need for multiple operators, saving manpower. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of one specific embodiment of the membrane electrode slurry filtration device disclosed in this application; Figure 2 This is a second schematic diagram of a specific embodiment of the membrane electrode slurry filtration device disclosed in this application; Figure 3 This is the third schematic diagram of a specific embodiment of the membrane electrode slurry filtration device disclosed in this application; Figure 4 This is a schematic diagram of a specific embodiment of the clamping module disclosed in this application installed inside the placement block; Explanation of reference numerals in the attached figures: 1. Tank body; 2. Can lid; 201. Through-hole structure; 202. L-shaped groove; 3. Filter funnel; 301. Protrusion; 302. Upper bucket section; 303. Lower mounting section; 304. Filter screen. Detailed Implementation

[0018] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0019] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not 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 application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0022] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0023] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0025] like Figures 1 to 4 As shown, this application discloses a membrane electrode slurry filtration device, including a tank body 1, a tank body cover 2 threadedly connected to the tank body 1, a through hole structure 201 in the central area of ​​the tank body cover 2, a plurality of L-shaped grooves 202 on the surrounding side walls of the through hole structure 201, a plurality of protrusions 301 on the lower outer peripheral surface of the filter funnel 3, the lower end of the filter funnel 3 being adapted to be inserted into the through hole structure 201, and each of the protrusions 301 being adapted to engage with the corresponding L-shaped grooves 202.

[0026] In this application, the tank body 1 and the tank cover 2 are connected by a threaded seal to form a tank structure with one open end. The central area of ​​the tank cover 2 is provided with a through hole structure 201, and the lower end of the filter funnel 3 is adapted to the through hole structure 201, which can effectively fix the filter funnel 3. Specifically, the main body of the filter funnel 3 is made of corrosion-resistant material, which can ensure chemical stability during long-term use and physical durability (i.e., overall structural stability) during actual use. The size of the upper opening of the filter funnel 3 is designed according to the actual use requirements to facilitate the pouring of membrane electrode slurry.

[0027] In some embodiments, the outer edge of the upper opening of the tank body 1 is provided with an external thread, and the edge of the inner circumferential surface of the lower end of the tank cover 2 is provided with an internal thread adapted to the external thread. Thus, the tank body 1 and the tank cover 2 are threadedly connected through the engagement of the internal and external threads, allowing the tank cover 2 to function as a connecting element. Specifically, the threads of the tank body 1 and the tank cover 2 are configured as a clockwise threaded connection structure.

[0028] In some possible implementations, the tank 1 is formed as a cylindrical structure open at one end, and the inner circumferential surface and the inner bottom surface of the tank 1 are provided with a ceramic coating or a phosphate coating, or The tank 1 is equipped with a ceramic liner or a glass enamel liner.

[0029] In some embodiments, the tank 1 is made of high-strength stainless steel, giving it excellent resistance to chemical corrosion and ensuring its chemical stability in various environments. The volume of the tank 1 is precisely calculated to accommodate filtration needs of different scales.

[0030] In some embodiments, the inner circumferential surface of the tank 1 is smooth, easy to clean, and reduces the possibility of residue accumulation. Preferably, a ceramic coating or phosphate coating may also be provided on the inner circumferential surface of the tank 1, which can specifically prevent damage to the tank 1 by some highly corrosive liquids and increase the service life of the tank 1.

[0031] In some embodiments, an inner liner may be separately provided inside the tank body 1. The inner liner is preferably a ceramic inner liner or a glass enamel inner liner, which can be used for filtering liquids with special properties. It has little impact on the overall structure of the filtration device and can further expand the application range of the filtration device, avoiding the increase in production costs due to the single use of the device.

[0032] In some possible implementations, the outer bottom surface of the tank body 1 is also provided with an anti-slip pad.

[0033] In some embodiments, the anti-slip mat is bonded to the outer bottom surface of the tank 1 using an adhesive bonding method. The anti-slip mat is preferably a silicone mat, which not only provides good anti-slip properties but also effectively insulates against heat and increases the stability of the filtration device during operation.

[0034] In some possible implementations, the filter funnel 3 includes an upper bucket portion 302 and a lower mounting portion 303 integrally connected, and a filter screen 304 is provided at the connection between the upper bucket portion 302 and the lower mounting portion 303.

[0035] In some embodiments, the filter screen 304 is a high-precision filter screen, which is made of a fine-pore material and has a number of pores evenly arranged.

[0036] In some possible implementations, the inner circumferential diameter of the lower mounting portion 303 is smaller than the inner circumferential diameter of the lower end of the upper bucket portion 302, so that a stepped surface can be formed between the upper bucket portion 302 and the lower mounting portion 303, and the filter screen 304 is disposed on the stepped surface.

[0037] In some embodiments, the upper bucket 302 is formed as a hollow inverted frustum structure with an upper opening diameter larger than a lower opening diameter. The sidewall cross-section of the upper bucket 302 is formed as an inwardly sloping surface from top to bottom. The angle of this slope is designed such that if the membrane electrode slurry has good fluidity, the slope angle is 45-60 degrees; if the membrane electrode slurry has moderate fluidity, the slope angle is set to 60-80 degrees, depending on the actual application requirements. The specially designed slope angle of the upper bucket 302 can effectively improve the flow rate of the membrane electrode slurry and reduce clogging problems during the flow of the membrane electrode slurry.

[0038] In some possible implementations, the protrusion 301 is formed as a hemispherical structure and is uniformly connected to the outer peripheral surface of the lower mounting portion 303.

[0039] In some embodiments, the number of protrusions 301 is preferably 3-4, and they are evenly distributed on the outer peripheral surface of the lower mounting portion 303. The protrusions 301 are formed into a hemispherical structure, or they can be formed into a cube structure. The side of the cube abuts against the upper and lower side of the L-shaped groove 202, which can effectively ensure a tight connection between the filter funnel 3 and the can lid 2.

[0040] In some possible implementations, the upper bucket 302 is formed as a funnel-shaped structure with the opening gradually decreasing from top to bottom.

[0041] In some possible implementations, the filter 304 is a fine porous material filter with a pore size of 5-500 μm.

[0042] In some embodiments, the filter screen 304 is a high-precision filter screen made of a fine-porous material with a plurality of pores evenly arranged thereon. The pore diameter is preferably 5-500 μm, determined according to the diameter of impurities in the membrane electrode slurry to be filtered. Determining the pore diameter enables efficient interception of zirconium beads, ensuring the accuracy and efficiency of the filtration process. Furthermore, filter screens 304 with different pore diameters can be replaced according to different filtering materials and requirements, facilitating the widespread use of the filtration device of this application in filtration processes of different fields and materials.

[0043] In some possible implementations, a latch is also provided on the inner circumferential surface of the connection between the upper bucket 302 and the lower mounting part 303 to secure the filter screen 304.

[0044] In some embodiments, the latch includes a locking plate and a rivet connected to the locking plate. A rivet hole is provided on the inner circumferential surface of the lower mounting portion 303. The rivet passes through the rivet hole to fix the locking plate to the inner circumferential surface of the lower mounting portion 303. The locking plate can rotate around the central axis of the rivet. Before replacing the filter screen 304, the locking plate is opened; after replacing the filter screen 304, the locking plate is tightened. This prevents the filter screen 304 from shifting after the membrane electrode slurry is poured into the filter funnel 3, thus avoiding filtration failure. Furthermore, this latch structure is relatively simple, facilitating the replacement of filter screens 304 with different pore diameters without removing the filter funnel 3, making operation convenient.

[0045] In some possible implementations, the L-shaped groove 202 includes a vertical groove and a horizontal groove, one end of the vertical groove is connected to the horizontal groove, and the other end extends to the upper surface of the can lid 2.

[0046] In some embodiments, the L-shaped groove 202 includes a vertical groove and a horizontal groove. One end of the vertical groove communicates with the horizontal groove, and the other end extends to the upper surface of the can lid 2. The protrusion 301 is adapted to enter from the opening of the vertical groove and move downwards, then move horizontally to the closed end of the horizontal groove, thereby connecting the protrusion 301 with the L-shaped groove 202. Preferably, the movement of the protrusion 301 in the horizontal groove is counterclockwise.

[0047] As a preferred embodiment of the membrane electrode slurry filtration device of this application, the membrane electrode slurry filtration device includes a tank body 1, a tank body cover 2 threadedly connected to the tank body 1, a through hole structure 201 in the central area of ​​the tank body cover 2, a plurality of L-shaped grooves 202 on the surrounding side walls of the through hole structure 201, a plurality of protrusions 301 on the lower outer circumferential surface of the filter funnel 3, the lower end of the filter funnel 3 being adapted to be inserted into the through hole structure 201, and each protrusion 301 being adapted to engage with the corresponding L-shaped groove 202, the L-shaped groove 202 including a vertical groove and a horizontal groove, one end of the vertical groove communicating with the horizontal groove, and the other end extending to the upper surface of the tank body cover 2. The tank body 1 is formed as a cylindrical structure with one open end, the inner circumferential surface and the inner bottom surface of the tank body 1 are provided with a ceramic coating or a phosphate coating, and the outer bottom surface of the tank body 1 is also provided with an anti-slip pad. The filter funnel 3 includes an integrally connected upper bucket portion 302 and a lower mounting portion 303, with a filter screen 304 provided at the connection between the upper bucket portion 302 and the lower mounting portion 303. The inner circumferential diameter of the lower mounting portion 303 is smaller than the inner circumferential diameter of the lower end of the upper bucket portion 302, so that a stepped surface can be formed between the upper bucket portion 302 and the lower mounting portion 303. The filter screen 304 is disposed on this stepped surface. The filter screen 304 is a fine porous material filter screen with a pore size of 5-500μm. The protrusions 301 are formed into a hemispherical structure and are uniformly connected to the outer circumferential surface of the lower mounting portion 303. A locking buckle is also provided on the inner circumferential surface at the connection between the upper bucket portion 302 and the lower mounting portion 303 to fix the filter screen 304.

[0048] Therefore, based on the above preferred embodiments, the membrane electrode slurry filtration device of this application connects the filter funnel 3, the tank cover 2, and the tank 1 into one unit, allowing the three to work together to form a highly efficient, durable, and easy-to-operate filtration system. Furthermore, by utilizing high-strength materials, the filtration device of this application can better filter all membrane electrode slurries. The threaded connection structure between the tank cover 2 and the tank 1 provides a highly efficient, stable, and economical filtration solution for the membrane electrode slurry, effectively solving the problems of spillage and zirconium bead drop during the filtration process. Simultaneously, it enables single-person operation, bringing a breakthrough improvement and optimization to the membrane electrode slurry preparation process.

[0049] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0050] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A membrane electrode assembly filtration device, characterized by, The container includes a tank body (1), on which a tank cover (2) is threadedly connected. The central area of ​​the tank cover (2) is provided with a through hole structure (201). The four sides of the through hole structure (201) are provided with multiple L-shaped grooves (202). The lower outer circumferential surface of the filter funnel (3) is provided with multiple protrusions (301). The lower end of the filter funnel (3) is adapted to be inserted into the through hole structure (201). Each of the protrusions (301) is adapted to engage with the corresponding L-shaped groove (202).

2. The membrane-electrode assembly filtration device of claim 1, wherein, The tank (1) is formed as a cylindrical structure with one end open. The inner circumferential surface and the inner bottom surface of the tank (1) are provided with a ceramic coating or a phosphate coating, or The tank (1) is equipped with a ceramic liner or a glass enamel liner.

3. The membrane-electrode assembly filtration device of claim 2, wherein, The outer bottom surface of the tank (1) is also provided with an anti-slip pad.

4. The membrane-electrode assembly filtration device of claim 1, wherein, The filter funnel (3) includes an upper bucket part (302) and a lower mounting part (303) that are integrally connected, and a filter screen (304) is provided at the connection between the upper bucket part (302) and the lower mounting part (303).

5. The membrane-electrode assembly filtration device of claim 4, wherein, The inner circumferential diameter of the lower mounting portion (303) is smaller than the inner circumferential diameter of the lower end of the upper bucket portion (302) so that a stepped surface can be formed between the upper bucket portion (302) and the lower mounting portion (303), and the filter screen (304) is disposed on the stepped surface.

6. The membrane-electrode assembly filtration device of claim 5, wherein, The protrusion (301) is formed as a hemispherical structure and is uniformly connected to the outer peripheral surface of the lower mounting part (303).

7. The membrane electrode slurry filtration device according to claim 6, characterized in that, The upper bucket (302) is formed as a funnel-shaped structure with the opening gradually decreasing from top to bottom.

8. The membrane electrode slurry filtration device according to claim 4, characterized in that, The filter screen (304) is a fine porous material filter screen with a pore size of 5-500μm.

9. The membrane-electrode assembly filtration device of claim 4, wherein, The inner circumferential surface of the connection between the upper bucket (302) and the lower mounting part (303) is also provided with a latch to fix the filter screen (304).

10. The membrane-electrode assembly filtration device according to any one of claims 1 to 9, characterized in that, The L-shaped groove (202) includes a vertical groove and a horizontal groove. One end of the vertical groove is connected to the horizontal groove, and the other end extends to the upper surface of the can lid (2).

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