Magnetic separator for improving product purity

Abstract

The utility model discloses a magnetic separator for improving product purity, which comprises a material channel for materials to pass through, a wear-resistant layer is arranged at the contact part of the material channel and the materials, or the material of the contact part of the material channel and the materials is the same as that of the materials. The influence of chippings of the material channel on the product purity is reduced, and the product purity is improved.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation equipment technology, specifically to a magnetic separator for improving product purity. Background Technology

[0002] Magnetic separators are used to remove magnetic components from materials and improve product purity. The materials processed are generally powders and slurries. Existing magnetic separators include a frame, on which a buffer bin, a feeding device, a magnetic cavity, and a distributor are installed sequentially from top to bottom. The lower end of the distributor is connected to a discharge pipe and an iron discharge pipe.

[0003] The above-mentioned technical solution has the following disadvantages: the material channel through which the material passes is usually made of stainless steel, which has low hardness and low wear resistance. When materials with higher hardness pass through the material channel, they will cause wear to the material channel, and debris from the material channel will enter the material, reducing the purity of the product. With the development of industries such as lithium batteries, photovoltaics, and electronic products, the requirements for material purity are becoming increasingly stringent, and existing magnetic separation equipment can no longer meet the requirements, making it urgent to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic separator that improves product purity and reduces the impact of debris and oxide impurities in the material channel on product purity, thereby addressing the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a magnetic separator for improving product purity, including a material channel through which materials pass, wherein the part of the material channel in contact with the material has a wear-resistant layer, or the material of the part of the material channel in contact with the material is the same as the material of the material.

[0006] Preferably, the wear-resistant layer is made of ceramic, quartz, glass, tungsten carbide, rubber or polymer material, or the material channel is made of ceramic, quartz, glass or polymer material.

[0007] Preferably, the material channel is made of a single material or the part of the material channel that comes into contact with the material has an inner lining.

[0008] Preferably, the inner lining is an integral structure, or the inner lining comprises several inner lining blocks, and the inner lining is attached to the part of the material channel that comes into contact with the material using processes such as pasting, coating, spraying, deposition, plating, or casting.

[0009] Preferably, multiple inner lining blocks are arranged in a group along the circumference of the material channel, and multiple groups of inner lining blocks are arranged along the extension direction of the material channel to form the inner lining layer.

[0010] Preferably, the inner liner block has a positioning groove on the front or rear side along the material channel extension direction, and the positioning grooves of two adjacent inner liner blocks in the same group are connected, and a positioning ring is placed in the positioning groove of the inner liner block in the same group.

[0011] Preferably, the positioning ring is bonded to the positioning groove.

[0012] Preferably, if the material is powder, the material channel includes one or more of the following: a slowing hopper, a feeding device, a magnetic cavity, a distributor, or a discharge pipe; if the material is slurry, the material channel includes one or more of the following: an inlet pipe, a magnetic cavity, and an outlet pipe.

[0013] Preferably, a medium mesh is installed inside the magnetic cavity, and the part of the medium mesh that contacts the material has a wear-resistant layer, or the material of the part of the medium mesh that contacts the material is the same as the material of the material.

[0014] Preferably, the part of the material channel that comes into contact with the material has an inner lining, and the outer layer of the material channel is made of stainless steel.

[0015] In summary, the beneficial effects of this utility model are as follows: since the material of the part of the material channel that comes into contact with the material is the same as the material material, even if the material channel is worn when it passes through the material channel, the debris from the material channel entering the material will not contaminate the material, which is conducive to improving the purity of the product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of a powder magnetic separator for improving product purity according to this utility model;

[0017] Figure 2 This is a side view of a powder magnetic separator for improving product purity, according to this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of a magnetic separator with a vibrator cavity for improving the purity of powder materials according to this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of a magnetic separator for improving product purity without a vibrator in the magnetic cavity of the powder magnetic separator according to this utility model;

[0020] Figure 5 This is a schematic diagram of the front structure of a magnetic separator for improving product purity according to this utility model.

[0021] Figure 6 yes Figure 5 A schematic diagram of the internal structure of part A in the middle;

[0022] Figure 7 yes Figure 5 A schematic diagram of the internal structure of part B in the middle;

[0023] Figure 8 yes Figure 5 A schematic diagram of the internal structure of part C in the middle;

[0024] Figure 9 This is a schematic diagram of the material channel and inner liner block in a magnetic separator for improving product purity according to this utility model;

[0025] Figure 10 This is a schematic diagram of the internal structure of the material channel and inner liner block in a magnetic separator for improving product purity according to this utility model;

[0026] Figure 11 This is a schematic diagram of the structure of the inner liner block in a magnetic separator for improving product purity, according to this utility model.

[0027] In the diagram: 1. Material channel; 101. Buffer hopper; 102. Feeding device; 103. Magnetic cavity; 104. Distributor; 105. Discharge pipe; 106. Feed pipe; 107. Discharge pipe; 2. Frame; 3. Iron discharge pipe; 4. Magnet; 5. Adhesive layer; 6. Liner block; 7. Positioning groove; 8. Positioning ring; 9. Dustproof chamber; 10. Vibrator; 11. Iron discharge pipe; 12. Excess discharge pipe; 13. Flushing pipe. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] like Figure 1 , Figure 2As shown, a magnetic separator for improving product purity includes a frame 2. If the material is powder, a buffer bin 101, a feeding device 102, a magnetic cavity 103, and a distributor 104 are installed sequentially from top to bottom on the frame 2. The lower end of the distributor 104 is connected to a discharge pipe 105 and an iron discharge pipe 3. The magnetic cavity 103 is located on a magnet 4, and the discharge pipe 105 is connected to a dustproof chamber 9. The material channel 1 includes one or more of the following: buffer bin 101, feeding device 102, magnetic cavity 103, distributor 104, or discharge pipe 105. During the magnetic separation process, the buffer bin 101, feeding device 102, magnetic cavity 103, distributor 104, or discharge pipe 105 come into contact with the material. Improvements to the buffer bin 101, feeding device 102, magnetic cavity 103, distributor 104, or discharge pipe 105 are beneficial to improving product purity. Specifically, the feeding device includes a vibratory feeder, a butterfly valve, a slide gate valve, or a rotary valve.

[0032] like Figures 5 to 8 As shown, if the material is slurry, the frame 2 is equipped with a feed pipe 106, a magnetic cavity 103 and a discharge pipe 107 from bottom to top. The feed pipe 106 is connected to an iron discharge pipe 11 and a waste discharge pipe 12. The discharge pipe 107 is connected to a flushing pipe 13. The material channel 1 includes one or more of the feed pipe 106, the magnetic cavity 103 or the discharge pipe 107.

[0033] The portion of material channel 1 that contacts the material has a wear-resistant layer, or the material of the portion of material channel 1 that contacts the material is the same as the material. Specifically, the material is the material to be obtained in the magnetic separation process, which can be a single substance or a mixture. Specifically, if the material is a slurry, then the material is the slurry after the liquid has been removed. In one embodiment, because the portion of material channel 1 that contacts the material has a wear-resistant layer, wear on material channel 1 is reduced when the material passes through material channel 1, and debris from material channel 1 enters the material, which is beneficial to improving the purity of the product. In another embodiment, because the material of the portion of material channel 1 that contacts the material is the same as the material, even if wear occurs when the material passes through material channel 1, debris from material channel 1 entering the material will not contaminate the material, which is beneficial to improving the purity of the product. Preferably, the purity of the material of the inner wall of material channel 1 is not lower than the purity of the material at the output end of material channel 1.

[0034] A medium mesh is installed inside the magnetic cavity 103. The part of the medium mesh that contacts the material has a wear-resistant layer, or the material of the part of the medium mesh that contacts the material is the same as the material of the material.

[0035] The wear-resistant layer of the material channel 1 or the media network is made of ceramic, quartz, glass, tungsten carbide, rubber or polymer materials.

[0036] In one embodiment, the hardness of ceramics is generally HRC70-90, and the hardness of glass is generally HRC60-65. If the material is ceramic, the part of material channel 1 in contact with the material is made of ceramic. If the material is quartz, the part of material channel 1 in contact with the material is made of quartz or quartz glass. If the material is glass, the part of material channel 1 in contact with the material is made of glass. If the material is a polymer material, the part of material channel 1 in contact with the material is made of a polymer material. Furthermore, the use of a polymer material for the part of material channel 1 in contact with the material also takes into account the wear resistance of certain polymer materials. In this case, the material passing through may not be a polymer material, but other materials, such as quartz sand.

[0037] Material channel 1 is made of a single material or the portion of material channel 1 in contact with the material has an inner lining. In one embodiment, material channel 1 is entirely made of the same material as the material; preferably, material channel 1 is entirely made of ceramic, quartz, glass, or polymer. In another embodiment, the inner lining is made of the same material as the material; preferably, the inner lining is made of ceramic, quartz, glass, or polymer. Specifically, when material channel 1 has an inner lining, the outer layer of material channel 1 is made of stainless steel. Stainless steel has a long service life and low cost, which is beneficial to improving economic efficiency.

[0038] The magnetic cavity 103 includes two options: one with a vibrator 10 and the other without a vibrator 10.

[0039] like Figure 3 As shown, the vibrator 10 is based on the original equipment, with the inner wall of the stainless steel magnetic cavity 103 lined with a glass tube, ceramic tube, quartz tube, or a tube of the same or similar material as the material. Alternatively, coating, spraying, deposition, plating, or casting processes can be used to create a lining of the same or similar material on the stainless steel inner wall. The media mesh is threaded through a shaft and fixed at both ends to prevent contact or collision between the media mesh and the cylinder wall, which could damage the lining. Simultaneously, a negative pressure auxiliary iron removal device is connected to the iron discharge port, and an air inlet is provided at the feed inlet. During iron discharge, the negative pressure fan of the negative pressure auxiliary iron removal device is activated, using negative pressure airflow to draw out magnetic impurities that are difficult to remove through vibration within the magnetic cavity. If necessary, positive air pressure, such as compressed air, can be applied to the air inlet simultaneously with the negative pressure fan to enhance the removal effect of magnetic impurities.

[0040] Of course, the vibrating magnetic cavity 103 device can also be used without vibration, or the vibration device can be completely omitted. Only negative pressure or positive + negative air pressure airflow is used to clean magnetic impurities. This avoids the generation of metal fragments and contaminants due to friction of the medium mesh caused by vibration.

[0041] like Figure 4As shown, there are two cases for magnetic separators without vibrator 10: one is a magnetic cavity made of glass, ceramic, quartz, or a material similar to or the same as the material, fixed inside the center hole of the magnetic separator coil tank. The other is a stainless steel magnetic cavity 103 lined with glass, quartz, ceramic, or a material similar to or the same as the material, fixed inside the center hole of the magnetic separator coil tank. In either case, the media screen must be threaded through the shaft and fixed at both ends to prevent the media screen from contacting or colliding with the cylinder wall and damaging it. At the same time, a negative pressure auxiliary iron removal device is connected to the iron discharge port, and an air inlet is set at the feed inlet. When discharging iron, the negative pressure fan of the negative pressure auxiliary iron removal device is started, and the magnetic impurities in the magnetic cavity are sucked out by the negative pressure airflow. If necessary, positive air pressure, such as compressed air, can also be applied to the air inlet at the same time as the negative pressure fan is started to enhance the removal effect of magnetic impurities.

[0042] like Figures 9 to 11 As shown, the inner lining layer is a one-piece structure, or the inner lining layer comprises several inner lining blocks 6. The inner lining layer is attached to the part of the material channel 1 that comes into contact with the material using processes such as bonding, coating, spraying, deposition, plating, or casting. The inner lining layer is a one-piece structure, manufactured through processes such as bonding, coating, spraying, deposition, plating, or casting. Alternatively, the inner lining layer comprises several inner lining blocks 6. First, the inner lining blocks 6 are manufactured separately, and then the inner lining blocks 6 are assembled and installed to improve production efficiency. Preferably, there is an adhesive layer 5 between the inner lining blocks 6 and the material channel 1. In this structure, the adhesive layer 5 between the inner lining blocks 6 and the material channel 1 provides a stronger connection. Multiple inner lining blocks 6 are arranged in a group along the circumference of the material channel 1, and multiple groups of inner lining blocks 6 are arranged along the extension direction of the material channel 1 to form the inner lining layer. This arrangement facilitates assembly and installation. The inner liner block 6 has a positioning groove 7 on its front or rear side along the extension direction of the material channel 1, arranged circumferentially along the material channel 1. The positioning grooves 7 of two adjacent inner liner blocks 6 in the same group are connected, and a positioning ring 8 is placed in the positioning groove 7 of the inner liner blocks 6 in the same group. When installing the inner liner block 6, all inner liner blocks 6 in the same group are constrained by the positioning ring 8, making the installation more secure. The positioning ring 8 is bonded to the positioning groove 7. In this structure, the connection between the positioning ring 8 and the positioning groove 7 is more secure.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A magnetic separator for improving purity of a product, comprising a material passage (1) through which material passes, characterized in that, The material passage (1) has a wear-resistant layer at the part in contact with the material, or the material passage (1) and the part in contact with the material are made of the same material as the material.

2. The magnetic separator for improving purity of a product according to claim 1, wherein The wear-resistant layer is made of ceramic, quartz, glass, tungsten carbide, rubber or polymer material, or the material passage (1) is made of ceramic, quartz, glass or polymer material.

3. The magnetic separator for improving purity of a product according to any one of claims 1 to 2, characterized in that, The material passage (1) is made of a single material, or the material passage (1) has an inner lining layer at the part in contact with the material.

4. The magnetic separator for improving purity of a product according to claim 3, wherein The inner lining layer is of an integral structure, or the inner lining layer includes a plurality of inner lining blocks (6) attached to the part in contact with the material of the material passage (1) by means of sticking, coating, spraying, deposition, plating or casting.

5. The magnetic separator for improving purity of a product according to claim 4, wherein The plurality of inner lining blocks (6) are arranged in a group along the circumferential direction of the material passage (1), and a plurality of groups of the inner lining blocks (6) are arranged along the extension direction of the material passage (1) to form the inner lining layer.

6. The magnetic separator for improving purity of a product according to claim 5, wherein The inner lining block (6) is provided with a positioning groove (7) arranged along the circumferential direction of the material passage (1) at the front side or the rear side of the inner lining block (6) along the extension direction of the material passage (1), the positioning grooves (7) of two adjacent inner lining blocks (6) in the same group are connected, and the positioning grooves (7) in the same group of inner lining blocks (6) are provided with a positioning ring (8).

7. The magnetic separator for improving purity of a product according to claim 6, wherein The positioning ring (8) is bonded to the positioning groove (7).

8. The magnetic separator for improving purity of a product according to claim 3, wherein If the material is powder, the material passage (1) includes one or more of a buffer bin (101), a feeding device (102), a magnetic cavity (103), a distributor (104) or a discharge pipe (105), and if the material is slurry, the material passage (1) includes one or more of a feeding pipe (106), a magnetic cavity (103) or a discharge pipe.

9. The magnetic separator for improving purity of a product according to claim 8, wherein The magnetic cavity (103) is provided with a medium net, and the medium net has a wear-resistant layer at the part in contact with the material, or the material passage (1) and the part in contact with the material are made of the same material as the material.

10. The magnetic separator for improving purity of a product according to claim 3, wherein The material passage (1) has an inner lining layer at the part in contact with the material, and the outer layer of the material passage (1) is made of stainless steel.

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