Rhombic broken sintered mesh filter element

Abstract

The utility model discloses a diamond crushing sintered mesh filter element, which belongs to the technical field of lithium battery manufacturing and comprises a tank body and a filter element, the filter element is arranged in the tank body and is in a hollow barrel shape, a connecting part is arranged at the bottom of the filter element and is connected with the inner wall of the tank body, and one end of the filter element far away from the connecting part is connected with a crushing sleeve; the tank body is provided with a feeding port, the surface of the crushing sleeve is pyramid-shaped, the top of the crushing sleeve is provided with a crushing tip, and the diamond surface of the crushing sleeve faces the feeding port; the filter element is of a multi-layer steel wire structure, a vertically-upward crushing head is arranged on the side, close to the feeding port, of the filter element, a connecting rod is arranged at the bottom of the crushing head in the filter element, an elastic piece fixedly connected with the connecting rod is arranged on the inner wall, away from the feeding port, of the filter element, and the elastic piece can make the crushing head elastically move up and down in the vertical direction when the crushing head is stressed. The double functions of immediate crushing and filtering of the materials are achieved, the production efficiency is improved, and the material treatment difficulty in subsequent procedures is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a diamond-shaped crushed sintered mesh filter element. Background Art

[0002] Double cone rotary vacuum dryer is a device suitable for vacuum drying and mixing of powder and granular materials in the pharmaceutical, food, chemical and other industries. Double cone rotary vacuum dryer is generally a double cone rotary tank body. The existing double cone rotary vacuum dryer includes a machine body, a sealed double cone double layer tank body, and a vacuum conduit extending into the tank body. The interior is used to hold materials. When in use, the tank is in a vacuum state, and steam or hot water is introduced into the jacket for heating. The heat contacts the wet material through the inner wall of the tank. The water vapor evaporated by the wet material after absorbing heat is drawn away through the vacuum conduit and the exhaust pipe of the vacuum pump. Since the tank body is in a vacuum state, and the rotation of the tank body causes the material to be constantly turned up and down, inside and outside, the drying speed is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved.

[0003] Double cone rotary dryer is one of the indispensable equipment in the lithium battery industry, used for drying lithium slurry. Double cone rotary dryers used in common lithium battery raw materials are generally equipped with a sintered mesh filter element. However, although the existing sintered mesh filter element can filter effectively, it is prone to physical deformation when facing high-intensity material impact under high-speed operation and high-temperature environment, affecting the filtering efficiency of the raw materials. In addition, large pieces of material that have not been crushed often cause the discharge port to be blocked or the filter to be blocked, affecting continuous production.

[0004] In the prior art, in order to prevent large pieces of cargo from entering the dryer, it is common to use a crusher to crush the raw materials before the large pieces of material enter the dryer. However, this step requires the addition of a crusher, which increases the cost, and the subsequent maintenance cost of the crusher also needs to be considered. After a long period of use, it is also necessary to consider whether the crushing is thorough. After considering the above issues, the applicant believes that it is urgent to develop a new filter element that can resist deformation and has a crushing function. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned background technical difficulties and provide a diamond-shaped crushing sintered mesh filter element with a crushing function.

[0006] In order to achieve the above purpose, the technical solution adopted is: a diamond-shaped crushed sintered mesh filter element, comprising a tank body and a filter element, the filter element is arranged in the tank body, the filter element is arranged in a hollow barrel shape, the bottom of the filter element is provided with a connecting portion connected to the inner wall of the tank body, and the end of the filter element away from the connecting portion is connected with a crushing sleeve;

[0007] The tank body is provided with a feeding port, the surface of the crushing sleeve is arranged in a pyramidal shape, the top of the crushing sleeve is provided with a crushing tip, and the rhombus surface of the crushing sleeve is arranged toward the feeding port;

[0008] The filter element is a multi-layer steel wire structure. A vertically upward crushing head is provided on one side of the filter element close to the feeding port. A connecting rod is provided at the bottom of the crushing head inside the filter element. An elastic part fixedly connected to the connecting rod is provided on the inner wall of the filter element away from the feeding port. The elastic part can enable the crushing head to move elastically up and down in the vertical direction when pressure is applied.

[0009] Furthermore, the angle between the axis of the crushing sleeve and the axis of the crushing head is 30-60°.

[0010] Furthermore, the crushing head is set in a triangular cone shape, and the elastic part includes a sleeve fixedly arranged on the inner wall of the bottom surface of the filter element away from the feeding port, a spring is provided in the inner cavity at the bottom of the sleeve, and an opening is opened on the top of the sleeve. After the connecting rod is inserted into the opening, it is slidably connected in the sleeve, and an anti-slip head is provided at the bottom of the connecting rod. The diameter of the anti-slip head is larger than the diameter of the opening, and the anti-slip head is arranged above the spring when the connecting rod is inserted into the sleeve.

[0011] Furthermore, the number of the crushing heads is 2-4, and the elastic space of the spring is 0.5-2 cm.

[0012] Furthermore, the connection portion at the bottom of the filter element and the tank body are directional mounted, and the filter element is made of carbon fiber reinforced plastic.

[0013] Furthermore, the filter element is in the shape of a rectangular parallelepiped, the crushing sleeve and the filter element are detachably connected by using screws after drilling, the crushing sleeve is in the shape of a four-sided cone, the inner angle of the four-sided cone of the crushing sleeve is 30-45°, and the edge of the crushing sleeve is coated with wear-resistant material, such as ceramic or cemented carbide.

[0014] The beneficial effects of adopting the above scheme are as follows: when the diamond-shaped crushing sintered mesh filter element is used, after the filter element is fixedly connected to the tank body, the raw materials are fed from the feeding port. When the raw materials fall from the feeding port, they first contact the sharp edge of the filter element crushing sleeve. Through the cutting effect of the edges, large pieces of materials can be effectively crushed, realizing the dual functions of instant crushing and filtering of materials, improving production efficiency, and reducing the difficulty of material processing in subsequent processes;

[0015] At the same time, when the large pieces of material come into contact with the surface of the filter element, they will come into contact with the vertically upward crushing head provided on the side of the filter element barrel near the feeding port. When the crushing head comes into contact with the material, it will first crush the material. Secondly, when the crushing head is subjected to downward pressure, the connecting rod connected to the bottom of the crushing head will compress the elastic part of the filter element away from the inner wall of the feeding port downward, so that the crushing head has the elastic force to rebound upward, which is more conducive to the crushing of the next piece of raw material. It can also keep the crushing head in use for a long time, improving the overall crushing effect;

[0016] When the tank body rotates and the raw materials are turned over inside, not only the surface of the filter element can be subjected to the pressure of the material, but also when the filter element crushing head receives the pressure, the crushing head will transmit part of the pressure to the bottom of the filter element, thereby reducing the impact force on the filter element surface and increasing the service life of the filter element. At the same time, the connecting rod can vibrate the entire inner wall of the filter element in the process of pressing down the elastic part, so that the raw materials stuck on the top and bottom surfaces of the filter screen can be separated, reducing blockage and enhancing the structural stability of the filter element as a whole. Even under extreme working conditions, it can effectively prevent the filter element from deformation, thereby ensuring the continuity and reliability of filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the diamond-shaped crushed sintered mesh filter element of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the crushing tip of the diamond-shaped crushing sintered mesh filter element of the utility model.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure after adding a crushing head, connecting rods and elastic parts.

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of part A.

[0021] In the figure, 1. crushing sleeve; 2. filter element; 3. connecting part; 4. crushing tip; 5. connecting rod; 6. crushing head; 7. sleeve; 8. opening; 9. anti-slip head; 10. spring. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] like Figure 1-3A diamond-shaped crushing sintered mesh filter element, comprising a tank body and a filter element 2, wherein the filter element 2 is arranged in the tank body, the filter element 2 is a hollow rectangular barrel-shaped arrangement, a connecting portion 3 is arranged at the bottom of the filter element 2 and is directionally connected to the inner wall of the tank body, the end of the filter element 2 away from the connecting portion 3 is connected to a crushing sleeve 1, the end of the filter element 2 away from the connecting portion 3 is connected to the crushing sleeve 1, the crushing sleeve 1 is a four-diamond cone arrangement, the inner angle of the four-sided pyramid of the crushing sleeve 1 is 30-45°, and the edge of the crushing sleeve 1 is coated with wear-resistant materials, such as ceramics or hard alloys;

[0025] A feeding port is provided on the top of the tank body, the surface of the crushing sleeve 1 is arranged in a pyramidal shape, a crushing tip 4 is arranged on the top of the crushing sleeve 1, and the rhombus surface of the crushing sleeve 1 is arranged toward the feeding port;

[0026] like Figure 4 The filter element 2 is a multi-layer steel wire structure, and the filter element 2 is made of carbon fiber reinforced plastic. The filter element 2 is provided with three vertically upward crushing heads 6 on the side close to the feeding port. The crushing heads 6 are arranged in a triangular cone shape. The angle between the axis of the crushing sleeve 1 and the axis of the crushing head 6 is 30-60°. The bottom of the crushing head 6 is provided with a connecting rod 5 in the filter element 2. The inner wall of the filter element 2 away from the feeding port is provided with an elastic member fixedly connected to the connecting rod 5. The elastic member includes a filter element 2 away from the feeding port. A sleeve 7 is fixedly arranged on the inner wall of the bottom surface of the opening, a spring 10 is arranged in the inner cavity at the bottom of the sleeve 7, an opening 8 is opened on the top of the sleeve 7, the connecting rod 5 is inserted into the opening 8 and then slidably connected in the sleeve 7, an anti-slip head 9 is arranged at the bottom of the connecting rod 5, the diameter of the anti-slip head 9 is larger than the diameter of the opening 8, and the anti-slip head 9 is arranged above the spring 10 when the connecting rod 5 is inserted into the sleeve 7. The elastic member can make the crushing head 6 elastically move up and down by 0.5-2cm in the vertical direction when under pressure.

[0027] The specific implementation is as follows: When the diamond-shaped crushing sintered mesh filter element 2 is used, after the filter element 2 is fixedly connected to the tank body, the raw material is put into the feeding port. When the raw material falls from the feeding port, it first contacts the sharp edge of the crushing sleeve 1 of the filter element 2. Through the cutting effect of the edge, the large pieces of material can be effectively crushed;

[0028] At the same time, when the bulk material contacts the surface of the filter element 2, it will contact the vertically upward crushing head 6 provided on the side of the filter element 2 barrel near the feeding port. When the crushing head 6 contacts the material, it will first crush the material. Secondly, when the crushing head 6 is subjected to downward pressure, the connecting rod 5 connected to the bottom of the crushing head 6 will compress the spring 10 provided on the inner wall of the filter element 2 away from the feeding port downward, so that the crushing head 6 has an elastic force to rebound upward, which is more conducive to the crushing of the next piece of raw material, and the crushing head 6 can be used for a long time, thereby improving the overall crushing effect.

[0029] When the tank body rotates and the raw materials are turned over inside, not only the surface of the filter element 2 can be subjected to the pressure of the materials, but also when the crushing head 6 of the filter element 2 receives the pressure, the crushing head 6 will transmit part of the pressure to the bottom surface of the filter element 2, thereby reducing the impact force on the surface of the filter element 2 and increasing the service life of the filter element 2. At the same time, the connecting rod 5 can cause a certain vibration effect on the inner wall of the entire filter element 2 in the process of pressing down the elastic part, so that the raw materials stuck on the top and bottom surfaces of the filter screen can be detached, thereby reducing blockage.

[0030] During the specific implementation, the applicant found that only when the angle between the axis of the crushing sleeve 1 and the axis of the crushing head 6 is set to 30-60°, the crushing effect of the crushing sleeve 1 and the crushing head 6 on the material during the falling process of the material is the best. At the same time, when the inner angle of the quadrangular pyramid of the crushing sleeve 1 is 30-45°, each diamond-shaped cross-section of the crushing sleeve 1 and each face are set with a slight inclination angle, which can better make the sharp edge face the discharge pipe, so that the material crushing effect can be better.

[0031] After the above application, the dual functions of instant crushing and filtering of materials are realized, which improves production efficiency and reduces the difficulty of material handling in subsequent processes; the structural stability of the filter element 2 is significantly enhanced, and the deformation of the filter element 2 can be effectively prevented even under extreme working conditions, thereby ensuring the continuity and reliability of filtration; through the ingenious design of the diamond-structured crushing sleeve 1 and the crushing head 6, no additional crushing equipment is required, which simplifies the production line configuration and reduces energy consumption and maintenance costs; the overall drying uniformity of the lithium slurry is improved, thereby improving the performance and consistency of lithium-ion batteries.

[0032] Embodiment 2

[0033] On the basis of Example 1, the applicant discovered during implementation that when the filter element 2 needs to be replaced, the crushing sleeve 1 provided on the filter element 2 is far from being replaced because the edge of the crushing sleeve 1 is coated with wear-resistant materials, such as ceramics or cemented carbide. In order to take the overall cost into consideration, the applicant adopts a detachable connection between the filter element 2 and the crushing sleeve 1, and the crushing sleeve 1 and the filter element 2 are detachably connected by drilling holes and using threaded parts. After this application, when the filter element 2 needs to be replaced, it only needs to be disassembled and replaced, which saves the overall cost and increases the overall practicality of the product.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A diamond-shaped crushed sintered mesh filter element, comprising a tank body and a filter element (2), wherein the filter element (2) is arranged in the tank body, and is characterized in that: The filter element (2) is in a hollow barrel shape, a connecting portion (3) is provided at the bottom of the filter element (2) and is connected to the inner wall of the tank body, and a crushing sleeve (1) is connected to one end of the filter element (2) away from the connecting portion (3); The tank body is provided with a feeding port, the surface of the crushing sleeve (1) is arranged in a pyramidal shape, a crushing tip (4) is arranged on the top of the crushing sleeve (1), and the rhombus surface of the crushing sleeve (1) is arranged towards the feeding port; The filter element (2) is a multi-layer steel wire structure. A vertically upward crushing head (6) is provided on a side of the filter element (2) close to the feeding port. A connecting rod (5) is provided at the bottom of the crushing head (6) in the filter element (2). An elastic member fixedly connected to the connecting rod (5) is provided on the inner wall of the filter element (2) away from the feeding port. The elastic member can enable the crushing head (6) to elastically move up and down in the vertical direction when pressure is applied.

2. The diamond-shaped crushed sintered mesh filter element according to claim 1 is characterized in that: The angle between the axis of the crushing sleeve (1) and the axis of the crushing head (6) is 30-60°.

3. The diamond-shaped crushed sintered mesh filter element according to claim 1 is characterized in that: The crushing head (6) is arranged in a triangular cone shape, the elastic member comprises a sleeve (7) fixedly arranged on the inner wall of the bottom surface of the filter element (2) away from the feeding port, the inner cavity at the bottom of the sleeve (7) is provided with a spring (10), the top of the sleeve (7) is provided with an opening (8), the connecting rod (5) is inserted into the opening (8) and then slidably connected in the sleeve (7), the bottom of the connecting rod (5) is provided with an anti-slip head (9), the diameter of the anti-slip head (9) is larger than the diameter of the opening (8), and when the connecting rod (5) is inserted into the sleeve (7), the anti-slip head (9) is arranged above the spring (10).

4. The diamond-shaped crushed sintered mesh filter element according to claim 3 is characterized in that: The number of the crushing heads (6) is 2-4, and the elastic space of the spring (10) is 0.5-2 cm.

5. The diamond-shaped crushed sintered mesh filter element according to claim 1 is characterized in that: The connection portion (3) at the bottom of the filter element (2) and the tank body are directional mounted, and the filter element (2) is made of carbon fiber reinforced plastic.

6. The diamond-shaped crushed sintered mesh filter element according to claim 1 is characterized in that: The filter element (2) is in the shape of a rectangular parallelepiped. The crushing sleeve (1) and the filter element (2) are detachably connected by using a threaded part after drilling. The crushing sleeve (1) is in the shape of a quadrangular pyramid. The inner angle of the quadrangular pyramid of the crushing sleeve (1) is 30-45°. The edge of the crushing sleeve (1) is coated with a wear-resistant material, which is ceramic or hard alloy.

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