Slurry filtering device

Abstract

The utility model belongs to the technical field of filtering devices, and particularly relates to a slurry filtering device, which comprises a filter element, a slurry filtering device and a slurry filtering device, the one-way valve is arranged in the discharging section in a manner of reciprocating along the flowing direction of the slurry; the control mechanism is arranged on the discharging section and used for controlling the one-way valve to reciprocate in the slurry flowing direction; the one-way valve comprises a valve seat capable of reciprocating in the slurry flowing direction and a valve body installed on the valve seat, and when the control mechanism controls the valve seat to move in the same direction as the slurry flowing direction, the valve body is in a closed state. When the control mechanism controls the valve seat to move in the direction opposite to the slurry flowing direction, the valve is in an open state; the utility model has the beneficial effects that the one-way valve reciprocates along the flowing direction of slurry, the speed of the one-way valve is higher than the flowing speed of the slurry, the slurry is pushed to be discharged from the discharging section when the valve is closed, and meanwhile, negative pressure is generated at the filtering section to influence the unfiltered slurry to flow through the filtering section to be filtered, so that the slurry is prevented from being agglomerated, and the filter element is prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering devices, and in particular relates to a slurry filtering device. Background Art

[0002] When lithium batteries are coated with negative electrodes, it is necessary to ensure that the negative electrode slurry is stable and evenly dispersed. Therefore, the slurry is often filtered before entering the die head to avoid dark marks and scratches during the coating process that may cause the electrode to be scrapped.

[0003] In the prior art, the principle of the lithium battery negative electrode slurry filtering device is mostly filter pressing: by applying pressure on one side of the filter device, the slurry passes through the filter element under the pressure, thereby achieving the effect of slurry filtration. However, due to the dispersion characteristics of lithium battery slurry itself and related process requirements, this filter pressing method can easily lead to slurry agglomeration, resulting in clogging of the filter element, causing the filtration process to fail, and the steel shell filter element needs to be cleaned frequently. As a result, a large amount of slurry is scrapped, which invisibly increases production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a slurry filtering device to solve the above-mentioned technical problems, so as to achieve the effect of filtering slurry and avoiding clogging of filter element.

[0005] In view of this, the utility model provides a slurry filtering device, comprising:

[0006] A filter element, the filter element comprising a filter section and a discharge section connected to each other, wherein the discharge section is provided with a fluid channel connected to the filter section;

[0007] A one-way valve, which is arranged in the discharge section so as to be reciprocatingly movable along the slurry flow direction;

[0008] A control mechanism, which is arranged on the discharge section and is used to control the one-way valve to move back and forth along the slurry flow direction;

[0009] Among them, the one-way valve includes a valve seat that can move back and forth along the slurry flow direction and a valve installed on the valve seat. When the control mechanism controls the valve seat to move in the same direction as the slurry flow direction, the valve is in a closed state; when the control mechanism controls the valve seat to move in the opposite direction of the slurry flow direction, the valve is in an open state.

[0010] Furthermore, the valve comprises:

[0011] Two symmetrically installed fan blades are both hinged on the valve seat.

[0012] Furthermore, there is a closed end between the two fan blades, wherein a convex block is provided on the closed end of one fan blade, and a concave hole adapted to the convex block is provided on the closed end of the other fan blade.

[0013] Furthermore, the filtering section and the discharge section are both cylindrical structures, and filtering holes for feeding are provided on the outer peripheral wall of the filtering section.

[0014] Furthermore, it also includes a shell, which is sleeved on the outside of the filter section, and one end of the shell is connected to the discharge section;

[0015] A feed channel is formed between the outer shell and the filter section in radial direction.

[0016] Furthermore, bayonet platforms are provided on both ends of the discharge section and both ends of the shell;

[0017] Wherein, the shell and the discharge section are connected and fixed via a bayonet platform.

[0018] Furthermore, it also includes a sealing rubber pad, which is arranged between the shell and the discharge section.

[0019] Furthermore, the valve seat is a magnet, and the control mechanism is an electromagnetic coil.

[0020] Furthermore, the electromagnetic coil is provided with a coil lug for connecting to an external power source.

[0021] Furthermore, it also includes a gasket, which is arranged on the discharge end of the discharge section, and the gasket is used to axially limit the one-way valve.

[0022] The beneficial effects of the utility model are:

[0023] When the slurry flows through the filter element, the one-way valve keeps reciprocating along the flow direction of the slurry, and the speed of the reciprocating movement of the valve seat is faster than the speed of the slurry flowing through the filter section. When the control mechanism controls the valve seat to move in the same direction as the slurry flow direction and the valve is in a closed state, the valve will exert a thrust on the slurry to push the slurry in the flow direction of the slurry, allowing the slurry to be discharged from the discharge section. At the same time, a certain degree of negative pressure will be generated in the filter section, so that the unfiltered slurry will be affected by the negative pressure and flow through the filter section to be filtered, effectively preventing slurry agglomeration and avoiding filter element clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the filter element in the utility model;

[0025] Figure 2 It is a structural schematic diagram of the filter element in the utility model from another perspective;

[0026] Figure 3 It is a structural schematic diagram of the one-way valve in the utility model;

[0027] Figure 4It is a structural schematic diagram of the valve seat in the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the fan blade in the utility model;

[0029] Figure 6 It is a structural schematic diagram of the housing in the utility model;

[0030] Figure 7 It is a structural schematic diagram of the gasket in the utility model;

[0031] The symbols in the figure are:

[0032] 1. Filter section; 11. Filter hole; 2. Discharge section; 21. Fluid channel; 3. One-way valve; 31. Valve seat; 311. Connecting hole; 312. Connecting column; 32. Valve; 33. Bump; 34. Concave hole; 4. Control mechanism; 5. Housing; 6. Gasket; 7. Bayonet platform. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. 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 discussed in subsequent drawings.

[0035] Embodiment 1:

[0036] This embodiment provides a slurry filtering device, comprising:

[0037] A filter element, the filter element comprising a filter section 1 and a discharge section 2 connected to each other, wherein the discharge section 2 is provided with a fluid channel 21 communicating with the filter section 1;

[0038] A one-way valve 3, which is arranged in the discharge section 2 so as to be reciprocatingly movable along the slurry flow direction;

[0039] A control mechanism 4, which is arranged on the discharge section 2 and is used to control the one-way valve 3 to reciprocate along the slurry flow direction;

[0040] Among them, the one-way valve 3 includes a valve seat 31 that can move back and forth along the slurry flow direction and a valve 32 installed on the valve seat 31. When the control mechanism 4 controls the valve seat 31 to move in the same direction as the slurry flow direction, the valve 32 is in a closed state; when the control mechanism 4 controls the valve seat 31 to move in the opposite direction of the slurry flow direction, the valve 32 is in an open state.

[0041] In the present technical solution, when the slurry filtering device is in use, the slurry will first flow through the filtering section 1 of the filter element, and after filtration, it will then flow into the fluid channel 21 of the discharge section 2 and be discharged after passing through the one-way valve 3. In the process of the slurry flowing through the slurry filtering device, the control mechanism 4 drives the valve seat 31 to move back and forth along the slurry flow direction.

[0042] The speed of the reciprocating movement of the valve seat 31 is faster than the speed of the slurry flowing through the filter section 1. Therefore, when the control mechanism 4 controls the valve seat 31 to move in the same direction as the slurry flow direction and the valve 32 is in a closed state, the valve 32 will exert a certain force on the slurry, further pushing the slurry to move in the slurry flow direction, allowing the slurry to be discharged from the discharge section 2. At the same time, a certain degree of negative pressure will be generated in the filter section 1, so that the unfiltered slurry is affected by the negative pressure and flows through the filter section 1 to be filtered. Through this structural design, the slurry can be effectively prevented from agglomerating, the filter element can be avoided from being blocked, and the practicality can be improved.

[0043] Embodiment 2:

[0044] This embodiment provides a slurry filtering device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Further, the valve 32 comprises:

[0046] Two symmetrically installed fan blades are both hinged on the valve seat 31.

[0047] In this technical solution, if Figure 4 As shown, the valve seat 31 can be in a circular ring shape or a rectangular frame shape, and a through hole for the slurry to pass through is provided in the middle of the valve seat 31. Two connecting holes 311 are provided on the inner side of the valve seat 31, and a connecting column 312 is provided in the connecting hole 311. Two blades are hinged on the two connecting columns 312 respectively, and the structural shape of the two blades is adapted to the structural shape of the through hole. The two blades are used to control the opening and closing of the through hole of the valve seat 31. When the through hole is closed, the two blades abut against each other and the cross-sectional shape is a "V"-shaped structure.

[0048] Furthermore, there is a closed end between the two blades, wherein a convex block 33 is provided on the closed end of one blade, and a concave hole 34 adapted to the convex block 33 is provided on the closed end of the other blade. Through this structural design, the two blades can be accurately aligned when closed, ensuring that the two blades are in the correct position, avoiding misalignment or unstable abutment of the two blades, and effectively improving the connection stability of the two blades.

[0049] Embodiment 3:

[0050] This embodiment provides a slurry filtering device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Furthermore, the filtering section 1 and the discharge section 2 are both cylindrical structures, and the outer peripheral wall of the filtering section 1 is provided with filtering holes 11 for feeding.

[0052] In the present technical solution, one end of the filter section 1 is connected to one end of the discharge section 2, and the other end of the filter section 1 is closed. When the slurry flows through the filter element, it can only enter the filter section 1 through the filter hole 11 of the filter section 1, and then flow through the discharge section 2, and finally be discharged from the other end of the discharge section 2, so as to achieve the effect of slurry filtering. It is worth mentioning that the structural shape of the filter section 1 and the discharge section 2 is not limited to a cylindrical structure, but can also be a prismatic structure.

[0053] Embodiment 4:

[0054] This embodiment provides a slurry filtering device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] Furthermore, it also includes a shell 5, which is sleeved on the outside of the filter section 1, and one end of the shell 5 is connected to the discharge section 2;

[0056] A feed channel is formed between the outer shell 5 and the filter section 1 in the radial direction.

[0057] In the present technical solution, an outer shell 5 is sleeved on the outer side of the filter section 1, and one end of the outer shell 5 is connected to the feed end of the discharge section 2. This structural design provides a certain degree of protection for the filter section 1 and improves the stability of filtration. At the same time, a feed channel is formed radially between the outer shell 5 and the filter section 1, which guides the flow of the slurry.

[0058] Furthermore, bayonet platforms 7 are provided on both ends of the discharge section 2 and both ends of the shell 5 .

[0059] In the present technical solution, the bayonet platform 7 on the feed end of the discharge section 2 is connected and fixed to the bayonet platform 7 on one end of the outer shell 5, which can be connected by a snap buckle or by setting a fastener. Through this structural design, the connection firmness between the outer shell 5 and the discharge section 2 is enhanced, thereby improving the filtration stability of the slurry filtration device.

[0060] Furthermore, a sealing rubber pad is included, and the sealing rubber pad is arranged between the shell 5 and the discharge section 2. The sealing rubber pad is arranged to enhance the connection sealing between the shell 5 and the discharge section 2, thereby preventing the slurry from leaking from the connection between the shell 5 and the discharge section 2 when passing through the feed channel, and effectively improving the practicality.

[0061] Embodiment 5:

[0062] This embodiment provides a slurry filtering device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] Furthermore, the valve seat 31 is a magnet, and the control mechanism 4 is an electromagnetic coil.

[0064] In the present technical solution, the magnetic field generated by the electromagnetic coil being energized is utilized to make the valve seat 31 and the electromagnetic coil attract or repel each other. By continuously changing the direction of the current flowing through the electromagnetic coil, the magnetic field generated by the electromagnetic coil can be continuously changed, thereby making the valve seat 31 continuously change between the two states of being attracted and repelled, thereby achieving reciprocating motion of the valve seat 31 along the direction of slurry flow.

[0065] Furthermore, the electromagnetic coil is provided with a coil pole ear for connecting to an external power source. The two coil pole ears on the electromagnetic coil are respectively connected to the positive and negative poles of the external power source to ensure that the electromagnetic coil and the power source can be firmly connected, effectively transmit current, and ensure that the battery coil can generate a stable magnetic field to drive the valve seat 31 to move.

[0066] Embodiment 6:

[0067] This embodiment provides a slurry filtering device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] Furthermore, it also includes a gasket 6, which is arranged on the discharge end of the discharge section 2, and the gasket 6 is used to axially limit the one-way valve 3.

[0069] In the present technical solution, a gasket 6 is provided on the discharge end of the discharge section 2, and the gasket 6 is detachably connected to the discharge section 2. The gasket 6 may be a circular ring structure or a square frame structure; the gasket 6 may be connected to the discharge section 2 by providing a plurality of fasteners, and the inner side of the gasket 6 protrudes from the inner wall of the fluid channel 21. Through this structural design, the structure in which the inner side of the gasket 6 protrudes from the inner wall of the fluid channel 21 can play a certain axial limiting role on the one-way valve 3, thereby effectively preventing the one-way valve 3 from falling off during movement, preventing the one-way valve 3 from detaching from the discharge section 2, and improving practicality.

[0070] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A slurry filtering device, characterized in that: include: A filter element, the filter element comprising a filter section (1) and a discharge section (2) connected to each other, wherein the discharge section (2) is provided with a fluid channel (21) communicating with the filter section (1); a one-way valve (3), the one-way valve (3) being arranged in the discharge section (2) so as to be reciprocatingly movable along the slurry flow direction; A control mechanism (4), the control mechanism (4) being arranged on the discharge section (2) and used for controlling the one-way valve (3) to move back and forth along the slurry flow direction; The one-way valve (3) comprises a valve seat (31) that can reciprocate along the slurry flow direction and a valve (32) installed on the valve seat (31); when the control mechanism (4) controls the valve seat (31) to move in the same direction as the slurry flow direction, the valve (32) is in a closed state; when the control mechanism (4) controls the valve seat (31) to move in the opposite direction to the slurry flow direction, the valve (32) is in an open state.

2. A slurry filtering device according to claim 1, characterized in that: The valve (32) comprises: Two symmetrically installed fan blades are both hinged on the valve seat (31).

3. A slurry filtering device according to claim 2, characterized in that: A closed end that can be folded is provided between the two blades, wherein a convex block (33) is provided on the closed end of one blade, and a concave hole (34) adapted to the convex block (33) is provided on the closed end of the other blade.

4. A slurry filtering device according to claim 1, characterized in that: The filtering section (1) and the discharge section (2) are both cylindrical structures, and filtering holes (11) for feeding are provided on the outer peripheral wall of the filtering section (1).

5. The slurry filtering device according to claim 1, characterized in that: It also comprises a shell (5), which is sleeved on the outside of the filter section (1), and one end of the shell (5) is connected to the discharge section (2); A feed channel is formed between the outer shell (5) and the filter section (1) in a radial direction.

6. A slurry filtering device according to claim 5, characterized in that: Both ends of the discharge section (2) and both ends of the housing (5) are provided with bayonet platforms (7); Wherein, the outer shell (5) and the discharge section (2) are connected and fixed via a bayonet platform (7).

7. A slurry filtering device according to claim 6, characterized in that: It also comprises a sealing rubber pad, which is arranged between the outer shell (5) and the discharge section (2).

8. The slurry filtering device according to claim 5, characterized in that: The valve seat (31) is a magnet, and the control mechanism (4) is an electromagnetic coil.

9. A slurry filtering device according to claim 8, characterized in that: The electromagnetic coil is provided with a coil pole ear for connecting to an external power source.

10. The slurry filtering device according to claim 1, characterized in that: It also comprises a gasket (6), which is arranged on the discharge end of the discharge section (2), and the gasket (6) is used to play an axial limiting role on the one-way valve (3).

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