An anti-clogging iron remover core

Abstract

The present invention relates to the technical field of iron removers, and in particular to an anti-clogging iron remover core, comprising a vertically arranged separation plate and a mounting frame, the separation plates being evenly distributed on the upper end of the mounting frame, the upper end of the separation plate being provided with a pointed end, and a guide surface being provided on the pointed end from top to bottom along the length direction of the separation plate, an inwardly inclined separation surface being provided on one side of the guide surface of the separation plate, the edge of the lower end of the guide surface coincides with the edge of the upper end of the separation surface, and the minimum passing gap between the separation plates is 0.8 times-1.8 times the thickness of the separation plate, in the iron remover core, the upper end of the separation plate is provided with a pointed end, the attraction of the magnet at the tip of the separation plate is large, and the magnetic metal foreign matter can be effectively adsorbed on the guide surface, and other materials pass through the gap between the guide surface and the adjacent separation plate and enter the separation surface below the guide surface, and the falling plane is widened by the inclined separation surface, thereby reducing blockage and completing the separation of the magnetic metal foreign matter and the non-magnetic material.

Description

Technical Field

[0001] The present invention relates to the technical field of iron removers, and in particular to an anti-clogging iron remover core. Background Art

[0002] During the production of positive electrode materials for lithium-ion batteries, magnetic separation and iron removal are carried out throughout the entire process of positive electrode material preparation. Once there are metal impurities in the positive electrode material, especially the presence of elemental iron, it will cause a short circuit in the lithium-ion battery. In severe cases, it will lead to battery failure or even explosion. In addition, if there are large particles of magnetic metal foreign matter in the material that are not detected and directly enter the ceramic grinder, the internal ceramic accessories of the grinder will be broken. The accessories are expensive and the material will be contaminated, which will cause huge losses to the company.

[0003] The iron core of the iron remover is an important component of the iron remover (magnetic separator). The iron core of the iron remover attracts magnetic metal foreign matter, and non-magnetic materials can pass through the iron core normally, thus achieving the separation of magnetic metal foreign matter and non-magnetic materials.

[0004] The existing iron core is generally disc-shaped, with a high middle and a low edge. There is a gap between the edge of the iron core and the inner wall of the iron remover. The contact area between the iron core and the raw material is large, which prolongs the time for magnetic metal foreign matter to slide on the iron core, making it easier for the iron core to adsorb the magnetic metal foreign matter, while other non-magnetic materials slide down the iron core, thereby achieving separation of magnetic metal foreign matter from non-magnetic materials. During the entire separation process, the edge of the iron core has strong magnetism, which will accumulate more magnetic metal foreign matter. Non-magnetic materials are easily blocked by magnetic metal foreign matter, resulting in a smaller gap or even blockage, resulting in low flow efficiency. In order to increase the flow rate of the raw material, the shape of the iron core is changed from disc to strip grid shape, but there is still a certain amount of blockage. On the one hand, the interaction force between the particles causes accumulation and adhesion. On the other hand, the raw material is affected by excitation. After being magnetized at the upper end of the grid, the low-magnetic raw material moves in the gap of the grid. When it reaches the lower end of the grid, it is further magnetized by the magnet at the lower end of the grid and adheres to the lower end of the grid, causing blockage of the iron core. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an anti-clogging iron remover core.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A blockage-resistant iron remover core comprises a vertically arranged separation plate and a mounting frame, wherein the separation plates are evenly distributed at the upper end of the mounting frame, a tip is provided at the upper end of the separation plate, a guide surface is provided on the tip along the length direction of the separation plate from top to bottom, an inwardly inclined separation surface is provided on one side of the guide surface of the separation plate, the edge of the lower end of the guide surface coincides with the edge of the upper end of the separation surface, the minimum passing gap between the separation plates is 0.8 times to 1.8 times the thickness of the separation plate, the thickness of the separation plate affects the magnetic coverage range, and increasing the thickness of the separation plate can expand the magnetic coverage range to a certain extent, but the cross-sectional area of ​​the cylinder in the iron remover is certain, and when the thickness of the separation plate is too large, it will affect the minimum passing gap, making the minimum passing gap smaller and affecting the passing efficiency.

[0008] Preferably, when the number of separation plates is an even number, the separation plates are evenly divided into two groups, the two groups of separation plates are symmetrically arranged, and the guide surfaces on the separation plates face the middle of the mounting frame; when the number of separation plates is an odd number, the middle separation plate is arranged in the middle of the mounting frame, and the remaining separation plates are evenly divided into two groups, the two groups of separation plates are symmetrically arranged, and the guide surfaces on the two groups of separation plates face the middle of the mounting frame, so that the central area of ​​the entire iron core has stronger magnetism, ensuring that magnetic metal foreign matter is screened out in a large flow of raw material powder, thereby improving the iron removal efficiency.

[0009] Preferably, in the separation plate, the ratio of the separation plate thickness to the separation plate height is 1:5-10.

[0010] Preferably, in the separation plate, the ratio of the projection width of the separation surface to the thickness of the separation plate is 1:2-3.

[0011] Preferably, in the separation plate, the ratio of the guide surface height to the separation plate height is 1:6-12. By controlling the ratio of the separation plate thickness a to the separation plate height b and the ratio of the guide surface height n to the separation plate height b, the separation surface length is ensured to be long enough so that the low-magnetic raw material can fall off normally. In the process of separating magnetic metal foreign matter from non-magnetic materials, part of the low-magnetic raw material will be magnetized. This part of the low-magnetic raw material will slowly demagnetize and slide down on the separation surface. Since there is a strong magnetic zone at the lower end of the separation plate, by extending the separation surface length, the low-magnetic raw material is separated from the separation plate before entering the strong magnetic zone at the lower end of the separation plate, so that normal separation is achieved.

[0012] Preferably, the guide surface is an inclined surface or an arc-shaped surface, and the shape of the guide surface is set to increase the area of ​​the guide surface, thereby ensuring that the guide surface can accommodate more magnetic metal foreign matter.

[0013] Preferably, a separation surface with an adjustable inclination angle is provided on the separation plate.

[0014] Preferably, a countersunk screw for adjusting the separation surface is provided at the upper end of the separation plate.

[0015] Preferably, a countersunk screw for adjusting the separation surface is provided at the lower end of the separation plate.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the iron core of the iron remover, a tip is provided at the upper end of the separation plate, and a guide surface is provided on the tip. The attraction of the magnet at the tip of the separation plate is strong, which can effectively adsorb magnetic metal foreign matter on the guide surface. Other materials pass through the gap between the guide surface and the adjacent separation plate and enter the separation surface below the guide surface. The inclined separation surface widens the falling plane, reduces blockage, and makes it easy for the gravity of the blocked material to break through the friction force. The direction of the friction force and the direction of gravity are not in the same straight line, making adhesion more difficult to occur. At the same time, the low magnetic raw material is magnetized and the magnetic adsorption is reduced, and it slowly slides off the separation surface, finally completing the separation of magnetic metal foreign matter and non-magnetic material.

[0018] 2. In the iron core of the iron remover, the ratio of the minimum passing gap to the thickness of the separation plate is controlled, which can effectively ensure the passing efficiency of the material while ensuring that there is no magnetic blind spot at the tip of the separation plate; by controlling the ratio of the separation plate thickness to the separation plate height and the ratio of the guide surface height to the separation plate height, the length of the separation surface is ensured to be long enough so that low-magnetic raw materials can fall off normally.

[0019] 3. In the iron core of the iron remover, since the separation plate in the middle contacts the material more frequently, the placement direction of the separation plate is controlled so that the guide surface faces the middle of the mounting frame. This makes the magnetism in the middle area of ​​the entire iron core stronger, ensuring that magnetic metal foreign matter is screened out in a large flow of raw material powder, thereby improving the iron removal efficiency.

[0020] 4. In the iron core of the iron remover, a countersunk screw for adjusting the separation surface is provided at the upper end of the separation plate. The inclination angle of the second magnetic conductive part is changed by the countersunk screw above. When there is no low-magnetic raw material in the material, the countersunk screw may not push or push the second magnetic conductive part less. At this time, the minimum passing gap k value is large, and the material pass rate is high. When there are more low-magnetic raw materials in the material, the countersunk screw pushes the second magnetic conductive part as much as possible. At this time, the projection width m of the separation surface is large, the inclination angle of the separation surface is large, the friction force on the low-magnetic raw material is small, and the low-magnetic raw material is more likely to fall off under the action of gravity. At this time, the minimum passing gap k value becomes smaller, and the material pass rate becomes lower, but the material separation is more thorough. According to the properties of the material, the inclination angle of the separation surface is reasonably changed to improve the separation efficiency.

[0021] 5. In the iron core of the iron remover, a countersunk screw for adjusting the separation surface is provided at the lower end of the separation plate, and the inclination angle of the second magnetic conductive part is changed by the countersunk screw below. When the separation plate is in use, when there is no low-magnetic raw material in the material, the countersunk screw can push the second magnetic conductive part as much as possible. At this time, the material will remain relatively converged through the separation plate, and the contact frequency between the lower separation plate and the material particles is high, which is beneficial for the lower separation plate to process the material. When there are more low-magnetic raw materials in the material, the countersunk screw does not push the second magnetic conductive part, the inclination angle of the separation surface is large, the friction force on the low-magnetic raw material is small, the low-magnetic raw material is more likely to fall off under the action of gravity, and the separation of the material is more thorough. According to the properties of the material, the inclination angle of the separation surface is reasonably changed to improve the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of an anti-clogging iron remover core in Example 1 of the present invention. Figure 1 ;

[0023] Figure 2 This is a side structural diagram of an anti-clogging iron remover core in Example 1 of the present invention;

[0024] Figure 3 This is a bottom view of the structure of an anti-clogging iron remover core in Example 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of an iron core of an anti-clogging iron remover in Example 1 proposed by the present invention;

[0026] Figure 5 This is a structural diagram of the iron core iron remover cylinder body of the anti-clogging iron remover in Example 1 proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the main structure of an anti-clogging iron remover core in Example 1 of the present invention. Figure 2 ;

[0028] Figure 7 This is a schematic diagram of the main cross-sectional structure of a separation plate of an anti-clogging iron remover core in Example 2 proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the main cross-sectional structure of an anti-clogging iron remover core after the separation plate is opened in Example 2 proposed by the present invention;

[0030] Figure 9 Schematic diagram of the main cross-sectional structure of a separation plate of an anti-clogging iron remover core in Example 3 of the present invention Figure 2 ;

[0031] Figure 10This is a schematic diagram of the main cross-sectional structure of the separation plate of the iron core of an anti-clogging iron remover in Example 3 of the present invention after it is opened. Figure 2 ;

[0032] Figure 11 This is a side structural schematic diagram of a separation plate of an anti-clogging iron remover core in Example 2-3 proposed by the present invention.

[0033] In the figure: 1 separation plate, 2 mounting frame, 11 guide surface, 12 separation surface, 13 electromagnet, 14 first magnetic conductive part, 15 countersunk screw, 16 second magnetic conductive part, 17 elastic band, 3 cylinder, a separation plate thickness, b separation plate height, m ​​separation surface projection width, n guide surface height, k minimum passing gap. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In Example 1, referring to Figure 1-6 , a blockage-proof iron remover core, comprising a vertically arranged separation plate 1 and a mounting frame 2, the mounting frame 2, the separation plates 1 are evenly distributed at the upper end of the mounting frame 2, the upper end of the separation plate 1 is provided with a tip, and a guide surface 11 is provided on the tip from top to bottom along the length direction of the separation plate 1, and an inwardly inclined separation surface 12 is provided on one side of the guide surface 11 of the separation plate 1, the edge of the lower end of the guide surface 11 coincides with the edge of the upper end of the separation surface 12, and the minimum passing gap k between the separation plates 1 is 0.8 times to 1.8 times the thickness a of the separation plate.

[0036] When the number of separation plates 1 is an even number, the separation plates 1 are evenly divided into two groups, the two groups of separation plates 1 are symmetrically arranged, and the guide surfaces 11 on the separation plates 1 face the middle of the mounting frame 2; when the number of separation plates 1 is an odd number, the middle separation plate 1 is arranged in the middle of the mounting frame 2, and the remaining separation plates 1 are evenly divided into two groups, the two groups of separation plates 1 are symmetrically arranged, and the guide surfaces 11 on the two groups of separation plates 1 face the middle of the mounting frame 2.

[0037] In the separation plate 1 , the ratio of the separation plate thickness a to the separation plate height b is 1:5-10.

[0038] In the separation plate 1 , the ratio of the separation surface projection width m to the separation plate thickness a is 1:2-3.

[0039] In the separation plate 1 , the ratio of the guide surface height n to the separation plate height b is 1:6-12.

[0040] The guide surface 11 is an inclined surface or an arc-shaped surface. The shape of the guide surface 11 is set to increase the area of ​​the guide surface 11, ensuring that the guide surface 11 can accommodate more magnetic metal foreign matter.

[0041] In the iron core of the iron remover, a tip is provided at the upper end of the separation plate 1, and a guide surface 11 is provided on the tip. The attraction of the magnet at the tip of the separation plate is strong, and the magnetic metal foreign matter can be effectively adsorbed on the guide surface 11. Other materials pass through the gap between the guide surface 11 and the adjacent separation plate 1 and enter the separation surface 12 below the guide surface 11. The inclined separation surface 12 widens the falling plane, reduces blockage, and makes it easy for the gravity of the blocked material to break through the friction force. The direction of the friction force and the direction of gravity are not in the same straight line, making adhesion more difficult to occur. At the same time, the low-magnetic raw material is magnetized and the magnetic adsorption is reduced, and it slowly slides off the separation surface 12, finally completing the separation of magnetic metal foreign matter and non-magnetic material.

[0042] In the iron core of the iron remover, the ratio of the minimum passing gap k to the separation plate thickness a is controlled. While ensuring that there is no magnetic blind spot at the tip of the separation plate 1, the material passing efficiency can be effectively guaranteed. The separation plate thickness a affects the magnetic coverage range. Increasing the separation plate thickness a can expand the magnetic coverage range to a certain extent. However, the cross-sectional area of ​​the cylinder 3 in the iron remover is certain. When the separation plate thickness a is too large, it will affect the minimum passing gap k, making the minimum passing gap k smaller, affecting the passing efficiency; by controlling the ratio of the separation plate thickness a to the separation plate height b and the ratio of the guide surface height n to the separation plate height b, it is ensured that the length of the separation surface 12 is long enough so that the low-magnetic raw material can fall off normally. In the process of separating magnetic metal foreign matter from non-magnetic material, part of the low-magnetic raw material will be magnetized. This part of the low-magnetic raw material will slowly demagnetize and slide off on the separation surface 12. Since there is a strong magnetic zone at the lower end of the separation plate 1, by extending the length of the separation surface 12, the low-magnetic raw material is separated from the separation plate 1 before entering the strong magnetic zone at the lower end of the separation plate 1, so that normal separation is achieved.

[0043] In the iron core of the iron remover, since the separation plate 1 in the middle contacts the material more frequently, the placement direction of the separation plate 1 is controlled so that the guide surface 11 faces the middle of the mounting frame 2, so that the magnetism of the middle area of ​​the entire iron core is stronger, ensuring that magnetic metal foreign matter is screened out in a large flow of raw material powder, thereby improving the iron removal efficiency.

[0044] When the core is used, Figure 5 As shown, three groups of iron cores are installed in the cylinder 3 of an iron remover. The adjacent groups of iron cores are deflected 90 degrees. The feed port and the discharge port of the cylinder 3 are aligned with the middle area of ​​the iron core. In the entire iron core, the middle area has stronger magnetism, which ensures that magnetic metal foreign matter is screened out in a large flow of raw material powder. Multiple iron cores cooperate with each other to ensure thorough iron removal.

[0045] In Example 2, reference Figure 7-8 and Figure 11 , the upper end of the separation plate 1 is provided with a countersunk screw 15 for adjusting the separation surface 12, and the separation plate 1 is provided with a separation surface 12 with an adjustable inclination angle. In this embodiment, the separation plate 1 is composed of a first magnetic conductive portion 14 and a second magnetic conductive portion 16. The first magnetic conductive portion 14 is embedded with evenly distributed electromagnets 13. The first magnetic conductive portion 14 is provided with a groove for accommodating the second magnetic conductive portion 16. The side of the second magnetic conductive portion 16 away from the first magnetic conductive portion 14 is the separation surface 12. The lower end of the second magnetic conductive portion 16 is rotatably connected to the inner wall of the groove. A countersunk screw 15 for pushing the second magnetic conductive portion 16 to move is installed on the first magnetic conductive portion 14. The countersunk screw 15 is connected to the first magnetic conductive portion 14 through a thread, and the end of the first magnetic conductive portion 14 is rotatably connected to the fixed block, and the end of the fixed block is rotatably connected to the separation plate 1, that is, when the countersunk screw 15 rotates, the fixed block rotates with the countersunk screw 15;

[0046] The inclination angle of the second magnetic conductive part 16 is changed by the countersunk screw 15, and an elastic band 17 is provided between the upper end of the second magnetic conductive part 16 and the first magnetic conductive part 14. When the separation plate 1 is in use, when there is no low-magnetic raw material in the material, the countersunk screw 15 may not push or push less the second magnetic conductive part 16. At this time, the minimum passing gap k value is large, and the material pass rate is high. When there are more low-magnetic raw materials in the material, the countersunk screw 15 pushes the second magnetic conductive part 16 as much as possible. At this time, the projection width m of the separation surface is large, the inclination angle of the separation surface 12 is large, the friction force on the low-magnetic raw material is small, and the low-magnetic raw material is more likely to fall off under the action of gravity. At this time, the minimum passing gap k value becomes smaller, and the material pass rate becomes lower, but the material separation is more thorough. According to the properties of the material, the inclination angle of the separation surface is reasonably changed to improve the separation efficiency.

[0047] In Example 3, reference Figure 9-11 , the lower end of the separation plate 1 is provided with a countersunk screw 15 for adjusting the separation surface 12, and the separation plate 1 is provided with a separation surface 12 with an adjustable inclination angle. In this embodiment, the separation plate 1 is composed of a first magnetic conductive portion 14 and a second magnetic conductive portion 16. The first magnetic conductive portion 14 is embedded with evenly distributed electromagnets 13. The first magnetic conductive portion 14 is provided with a groove for accommodating the second magnetic conductive portion 16. The side of the second magnetic conductive portion 16 away from the first magnetic conductive portion 14 is the separation surface 12. The upper end of the second magnetic conductive portion 16 is rotatably connected to the inner wall of the groove. A countersunk screw 15 for pushing the second magnetic conductive portion 16 to move is installed on the first magnetic conductive portion 14. The countersunk screw 15 is connected to the first magnetic conductive portion 14 through a thread. The end of the first magnetic conductive portion 14 and the end of the countersunk screw 15 are rotatably connected to the second magnetic conductive portion 16.

[0048] The inclination angle of the second magnetic conductive part 16 is changed by the countersunk screw 15. When the separation plate 1 is in use, when there is no low-magnetic raw material in the material, the countersunk screw 15 can push the second magnetic conductive part 16 as much as possible. At this time, the material will remain relatively converged through the separation plate 1, and the contact frequency between the lower separation plate 1 and the material particles is high, which is beneficial for the lower separation plate 1 to process the material. When there are more low-magnetic raw materials in the material, the countersunk screw 15 does not push the second magnetic conductive part 16, the separation surface 12 has a large inclination angle, the low-magnetic raw material is subjected to small friction, and the low-magnetic raw material is more likely to fall off under the action of gravity, and the separation of the material is more thorough. According to the properties of the material, the inclination angle of the separation surface is reasonably changed to improve the separation efficiency.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An anti-clogging iron remover core, comprising a vertically arranged separation plate (1) and a mounting frame (2), characterized in that: The separation plates (1) are evenly distributed on the upper end of the mounting frame (2), and a tip is provided at the upper end of the separation plate (1). A guide surface (11) is provided on the tip from top to bottom along the longitudinal direction of the separation plate (1). An inwardly inclined separation surface (12) is provided on one side of the guide surface (11) on the separation plate (1), and the edge of the lower end of the guide surface (11) coincides with the edge of the upper end of the separation surface (12). The minimum passing gap (k) between the separation plates (1) is 0.8 to 1.8 times the thickness (a) of the separation plates.

2. The anti-clogging iron remover core according to claim 1, characterized in that: When the number of separation plates (1) is an even number, the separation plates (1) are evenly divided into two groups, the two groups of separation plates (1) are symmetrically arranged, and the guide surfaces (11) on the separation plates (1) face the middle of the mounting frame (2); when the number of separation plates (1) is an odd number, the middle separation plate (1) is arranged in the middle of the mounting frame (2), and the remaining separation plates (1) are evenly divided into two groups, the two groups of separation plates (1) are symmetrically arranged, and the guide surfaces (11) on the two groups of separation plates (1) face the middle of the mounting frame (2).

3. The anti-clogging iron remover core according to claim 1, characterized in that: In the separation plate (1), the ratio of the separation plate thickness (a) to the separation plate height (b) is 1:(5-10).

4. The anti-clogging iron remover core according to claim 1, characterized in that: In the separation plate (1), the ratio of the separation surface projection width (m) to the separation plate thickness (a) is 1:(2-3).

5. The anti-clogging iron remover core according to claim 1, characterized in that: In the separation plate (1), the ratio of the guide surface height (n) to the separation plate height (b) is 1:(6-12).

6. The anti-clogging iron remover core according to claim 1, characterized in that: The guide surface (11) is an inclined surface or an arc-shaped surface.

7. An anti-clogging iron remover core according to any one of claims 1 to 6, characterized in that: The separation plate (1) is provided with a separation surface (12) with an adjustable inclination angle.

8. The anti-clogging iron remover core according to claim 7, characterized in that: The upper end of the separation plate (1) is provided with a countersunk screw (15) for adjusting the separation surface (12).

9. The anti-clogging iron remover core according to claim 7, characterized in that: The lower end of the separation plate (1) is provided with a countersunk screw (15) for adjusting the separation surface (12).

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