A high-precision metal powder impurity removal magnetic separation device

Abstract

The application relates to a high-precision metal powder impurity removal magnetic separation device, and relates to the technical field of magnetic separation devices, which comprises a feeder, a discharge pipe for discharging is communicated with the feeder, a chute is arranged on the discharge pipe in the height direction of the discharge pipe, a sliding block is slidably connected in the chute, an extension pipe is arranged at the lower end of the discharge pipe, the extension pipe is coaxially arranged with the discharge pipe, a sliding ring is arranged on the outer wall of the discharge pipe and surrounds the discharge pipe, the sliding ring is coaxially arranged with the discharge pipe, the sliding block is fixedly connected to the outer wall of the sliding ring, a connecting assembly for connecting the extension pipe and the sliding ring is arranged between the extension pipe and the sliding ring, and a positioning assembly for fixing the sliding block in the chute is arranged on the sliding block. The application has the effect of flexibly adjusting the dispersion degree of metal powder.

Description

Technical Field

[0001] This application relates to magnetic separation equipment, and more particularly to a high-precision magnetic separation equipment for removing impurities from metal powder. Background Technology

[0002] High-precision metal powders are core raw materials in high-end fields such as powder metallurgy, 3D printing, precision machinery manufacturing, and electronic components. The purity and particle uniformity of the powder directly determine the molding accuracy, mechanical properties, and service life of the final product. During the production processes of metal powder, such as atomization powdering, crushing and grinding, and recycling and purification, it is inevitable that fine magnetic foreign matter such as iron oxide, grinding debris, and magnetic impurities will be mixed in. If these impurities cannot be effectively removed, it will lead to many problems such as powder molding defects, product performance degradation, and poor batch stability. Therefore, high-precision impurity removal magnetic separation is an indispensable key process in the finishing of metal powders.

[0003] In the industry, dry magnetic separators for metal powders generally adopt a working mode of first dispersing and then magnetic separation. The dispersing structure breaks up powder agglomerates, allowing the powder particles to disperse and fully contact the magnetic field, thereby separating magnetic impurities from qualified metal powders. This effectively solves the problem of impurities inside agglomerated powders being unable to be separated. However, the dispersing mechanism of existing magnetic separators is mostly a fixed structure. Core parameters such as dispersing speed, dispersing gap, and air dispersion intensity are preset at the factory. It is impossible to adjust the degree of dispersing in real time according to metal powders with different particle sizes, humidity, and agglomeration degrees. This results in core defects such as uncontrollable dispersing accuracy and poor adaptability, making it difficult to meet the process requirements of high-precision powder separation.

[0004] The fixed-parameter dispersing mode in the existing technology will cause two-dimensional separation drawbacks. On the one hand, when the dispersing degree is insufficient, the fine metal powder agglomerates cannot be completely broken up. A large number of qualified powders are wrapped and adhered to magnetic impurities. The agglomerates cannot effectively contact the magnetic field, resulting in magnetic impurities remaining in the finished powder, incomplete impurity removal, and substandard magnetic separation purity. On the other hand, when the dispersing degree is excessive, the originally independent qualified metal powder particles will be excessively impacted and forcefully dispersed, resulting in excessive powder flying and an excessively large dispersion range. Some light and fine qualified powders will drift with the airflow and be carried and collected by the magnetic adsorption structure, reducing the material utilization rate. At the same time, the excessively dispersed powder is prone to generating dust, affecting the stability of equipment operation and the production environment. Summary of the Invention

[0005] In order to flexibly adjust the dispersion degree of metal powder, this application provides a high-precision magnetic separation device for removing impurities from metal powder.

[0006] The high-precision magnetic separation equipment for removing impurities from metal powder provided in this application adopts the following technical solution: A high-precision magnetic separation device for removing impurities from metal powder includes a feeder with a discharge pipe connected to the feeder. The discharge pipe has a groove along its height, and a slider is slidably connected within the groove. An extension pipe is provided at the lower end of the discharge pipe, coaxially with the discharge pipe. A sliding ring surrounds the discharge pipe on its outer wall, coaxial with the discharge pipe. The slider is fixedly connected to the outer wall of the sliding ring. A connecting assembly connects the extension pipe and the sliding ring. A positioning assembly is provided on the slider to fix it within the groove. A vibrating screen is provided at the lower end of the discharge pipe, with multiple distribution columns fixedly connected to its screen plate. A support assembly for supporting the discharge pipe and an adjustment assembly for adjusting the orientation of the discharge end of the discharge pipe are provided between the vibrating screen and the discharge pipe. Multiple magnetic separation rollers are installed at the discharge end of the vibrating screen, and a discharge conveyor belt is provided at the discharge end of the magnetic separation rollers.

[0007] By adopting the above technical solution, the degree of dispersion of metal powder can be adjusted. The extension tube can be fixed on the sliding ring through the connecting component. Then, the degree of dispersion of metal powder can be adjusted as needed by controlling the positioning component to slide the extension tube to a suitable position in the chute through the sliding ring and the slider. Subsequently, the extension tube is fixed on the discharge pipe through the positioning component. This allows for flexible adjustment of the number of distribution columns that the material passes through. That is, within a certain dispersion area, the more distribution columns the material passes through, the higher the degree of dispersion. Thus, the degree of dispersion of metal powder can be flexibly adjusted, making it suitable for different dispersion conditions.

[0008] Optionally, the chutes are configured as two and located on both sides of the discharge pipe respectively.

[0009] By adopting the above technical solution, and by setting two sliding grooves, the sliding ring can slide more smoothly on the discharge pipe.

[0010] Optionally, the positioning assembly includes a support plate fixedly connected to the slider, a fixing bolt threaded onto the support plate, and a plurality of receiving parts for receiving the fixing bolts fixed in the groove.

[0011] By adopting the above technical solution, the position of the slider can be quickly fixed by rotating the fixing bolt and connecting it to the receiving part in the slide groove.

[0012] Optionally, the receiving component is configured as a threaded cylinder, and the fixing bolt is threadedly connected inside the threaded cylinder.

[0013] By adopting the above technical solution, the fixing bolt can be received by the threaded cylinder, which facilitates the fixing of the bolt position.

[0014] Optionally, a plurality of positioning grooves are provided on the inner wall of the slide groove, and the plurality of positioning grooves are arranged along the height direction of the slide groove, and the threaded cylinder is embedded and fixed in the positioning grooves.

[0015] By adopting the above technical solution, the threaded cylinder can be restricted by the positioning groove, thereby improving its stability within the slide groove.

[0016] Optionally, the connecting assembly includes a fixed flange, which is coaxially arranged with the sliding ring. The fixed flange is threaded with a plurality of positioning bolts, which pass through the extension pipe and are threaded onto the sliding ring.

[0017] By adopting the above technical solution, the extension pipe can be stably fixed on the sliding ring through the flange and positioning bolts.

[0018] Optionally, a limiting rubber ring is fixedly connected to the inner wall of the extension tube near the sliding ring, and the limiting rubber ring is coaxially arranged with the extension tube.

[0019] By adopting the above technical solution, the extension pipe can be supported by the limiting rubber ring, reducing the friction between its inner wall and the slurry discharge inner wall.

[0020] Optionally, the extension tube is a rubber tube, and the adjustment assembly includes a mounting bracket installed on the vibrating screen. A connecting plate is fixedly connected to the mounting bracket, and a cylinder is mounted on the connecting plate. A lower pressure plate is fixedly connected to the output end of the cylinder, and the lower pressure plate abuts against the upper side wall of the extension tube.

[0021] By adopting the above technical solution, the rubber extension tube can be adjusted more flexibly. At the same time, the lower pressure plate can be lowered by controlling the cylinder, so that the discharge section of the extension tube bends towards the end face of the vibrating screen, allowing the material to be sprayed directly onto the end face of the vibrating screen.

[0022] Optionally, the support assembly includes a telescopic rod, which is installed on the end face of the vibrating screen. A support frame is fixedly connected to the telescopic rod, and the support frame abuts against the lower end face of the extension tube.

[0023] By adopting the above technical solution, when the position of the extension tube changes, the position of the telescopic rod can be adjusted so that the support frame moves to follow the change in the position of the extension tube.

[0024] Optionally, the lower ends of the plurality of magnetic separation rollers are provided with the same collection hopper, the lower end of the collection hopper is provided with a recycling conveyor belt, the upper part of the magnetic separation rollers is provided with a dust collection hood, and a bag filter is connected to the dust collection hood.

[0025] By adopting the above technical solution, the non-compliant materials screened by the magnetic separator can be recycled through the collection hopper, and the floating dust generated during the screening process can be collected through the dust collection hood.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The extension tube can be fixed on the discharge tube by the positioning component, so the number of material distribution columns that the material passes through can be flexibly adjusted. That is, the more material distribution columns the material passes through, the higher the degree of dispersion. Thus, the degree of dispersion of metal powder can be flexibly adjusted, which is suitable for different dispersion conditions. 2. The lower pressure plate can be lowered by controlling the cylinder, so that the discharge section of the extension pipe bends towards the end face of the vibrating screen, allowing the material to be sprayed directly onto the end face of the vibrating screen. 3. When the position of the extension tube changes, the support frame can be moved to follow the change in the position of the extension tube by adjusting the position of the telescopic rod. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the structure of the slide groove according to an embodiment of this application; Figure 4 This is a schematic diagram of the limiting rubber ring according to an embodiment of this application.

[0028] In the diagram, 1. Feeder; 2. Discharge pipe; 21. Chute; 22. Positioning groove; 3. Slider; 4. Extension pipe; 5. Sliding ring; 6. Connecting assembly; 61. Fixed flange; 62. Positioning bolt; 7. Positioning assembly; 71. Support plate; 72. Fixed bolt; 73. Receiving component; 8. Limiting rubber ring; 9. Vibrating screen; 10. Distributing column; 11. Adjusting assembly; 111. Mounting frame; 112. Connecting plate; 113. Cylinder; 114. Lower pressure plate; 12. Magnetic separator roller; 13. Discharge conveyor belt; 14. Support assembly; 141. Telescopic rod; 142. Support frame; 15. Collection hopper; 16. Recycling conveyor belt; 17. Dust collection hood; 18. Baghouse dust collector. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0030] An embodiment of this application is: a high-precision magnetic separation device for removing impurities from metal powder, referring to... Figure 1 and Figure 2The system includes a feeder 1, which is connected to a discharge pipe 2 for discharging material. The discharge pipe 2 is arranged horizontally, and an extension pipe 4, which is a rubber tube, is provided at the lower end of the discharge pipe 2. A vibrating screen 9 is provided at the lower end of the discharge pipe 2, and multiple distribution columns 10 are fixedly connected to the screen plate of the vibrating screen 9. The multiple distribution columns 10 are distributed in a matrix shape along the end face of the vibrating screen 9.

[0031] Multiple magnetic separator rollers 12 are provided with the same collection hopper 15 at their lower ends, and the lower ends of the collection hopper 15 gradually taper. A recycling conveyor belt 16 is provided at the lower end of the collection hopper 15, and a dust collection hood 17 is provided above the magnetic separator rollers 12. A bag filter 18 is connected to the dust collection hood 17. The bag filter 18 is a conventional industrial bag filter and is connected to a fan in the factory area.

[0032] Multiple magnetic separation rollers 12 are installed at the discharge end of the vibrating screen 9. The multiple magnetic separation rollers 12 are located at the same height, and a discharge conveyor belt 13 is provided at the discharge end of the magnetic separation rollers 12. A support assembly 14 for supporting the discharge pipe 2 is provided between the vibrating screen 9 and the discharge pipe 2.

[0033] The support assembly 14 includes a telescopic rod 141, the lead of which is parallel to the end face of the vibrating screen 9. The telescopic rod 141 is mounted on the end face of the vibrating screen 9, and a support frame 142 is fixedly connected to the telescopic rod 141. The support frame 142 abuts against the lower end face of the extension tube 4. When the position of the extension tube 4 changes, the position of the telescopic rod 141 can be adjusted to move the support frame 142 to follow the change in the position of the extension tube 4, thus providing support.

[0034] An adjustment assembly 11 is provided between the vibrating screen 9 and the discharge pipe 2 to adjust the orientation of the discharge end of the discharge pipe 2. The adjustment assembly 11 includes a mounting bracket 111 installed on the vibrating screen 9. A connecting plate 112 is fixedly connected to the mounting bracket 111. A cylinder 113 is installed on the connecting plate 112. A lower pressure plate 114 is fixedly connected to the output end of the cylinder 113. The lower pressure plate 114 abuts against the upper side wall of the extension pipe 4. When the extension pipe 4 reaches its maximum extension length, the lower pressure plate 114 can be lowered by controlling the cylinder 113, causing the discharge section of the extension pipe 4 to bend towards the end face of the vibrating screen 9, so that the material is directly sprayed onto the end face of the vibrating screen 9.

[0035] Reference Figure 3 and Figure 4 The slurry discharge pipe 2 has two grooves 21 arranged along its height, one on each side of the pipe. A slider 3 is slidably connected within each groove 21. A sliding ring 5 surrounds the outer wall of the slurry discharge pipe 2, coaxially with it. The slider 3 is fixedly connected to the outer wall of the sliding ring 5, thus allowing the sliding ring 5 to slidably connect to the slurry discharge pipe 2 via the slider 3.

[0036] The extension pipe 4 is coaxially arranged with the slurry discharge pipe 2, and a connecting assembly 6 is provided between the extension pipe 4 and the sliding ring 5 to connect the two. The connecting assembly 6 includes a fixed flange 61, which is coaxially arranged with the sliding ring 5. Multiple positioning bolts 62 are threaded onto the fixed flange 61, and these bolts are arranged around the axis of the fixed flange 61. The positioning bolts 62 pass through the extension pipe 4 and are threaded onto the sliding ring 5.

[0037] The slider 3 is equipped with a positioning assembly 7 for fixing the slider 3 within the slide groove 21. The positioning assembly 7 includes a support plate 71 fixedly connected to the slider 3, a fixing bolt 72 threadedly connected to the support plate 71, and multiple receiving parts 73 for receiving the fixing bolt 72 fixed within the slide groove 21. In this embodiment, the receiving part 73 is a threaded cylinder, and multiple positioning grooves 22 are formed on the inner wall of the slide groove 21, with each positioning groove 22 corresponding to a threaded cylinder. The multiple positioning grooves 22 are arranged along the height direction of the slide groove 21, and the threaded cylinder is embedded and fixed within the positioning groove 22. The shank of the fixing bolt 72 is threadedly connected to the threaded cylinder at different positions. Thus, by threading the fixing bolt 72 into the threaded cylinder at different locations, the height of the sliding ring 5 on the slurry discharge pipe 2 can be changed, thereby extending the height of the pipe 4.

[0038] Reference Figure 3 and Figure 4 In order to reduce the occurrence of collisions between the extension tube 4 and the limiting rubber ring 8, the limiting rubber ring 8 is fixedly connected to the inner wall of the extension tube 4 near the sliding ring 5. The limiting rubber ring 8 is coaxially arranged with the extension tube 4.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A high-precision magnetic separation device for removing impurities from metal powder, comprising a feeder (1), characterized in that, The feeder (1) is connected to a discharge pipe (2) for discharging material. The discharge pipe (2) is characterized by having a groove (21) along its height direction, a slider (3) slidably connected within the groove (21), an extension pipe (4) at the lower end of the discharge pipe (2), the extension pipe (4) being coaxially arranged with the discharge pipe (2), a sliding ring (5) surrounding the discharge pipe (2) on the outer wall of the discharge pipe (2), the sliding ring (5) being coaxially arranged with the discharge pipe (2), the slider (3) being fixedly connected to the outer wall of the sliding ring (5), and the extension pipe (4) and the sliding ring (5) being... A connecting component (6) is provided between the two. A positioning component (7) is provided on the slider (3) to fix the slider (3) in the slide groove (21). A vibrating screen (9) is provided at the lower end of the discharge pipe (2). Multiple material distribution columns (10) are fixedly connected to the screen plate of the vibrating screen (9). A support component (14) for supporting the discharge pipe (2) and an adjustment component (11) for adjusting the orientation of the discharge end of the discharge pipe (2) are provided between the vibrating screen (9) and the discharge pipe (2). Multiple magnetic separation rollers (12) are installed at the discharge end of the vibrating screen (9). A discharge conveyor belt (13) is provided at the discharge end of the magnetic separation rollers (12).

2. The high-precision magnetic separation equipment for removing impurities from metal powder according to claim 1, characterized in that, The chute (21) is configured as two and located on both sides of the discharge pipe (2).

3. The high-precision magnetic separation equipment for removing impurities from metal powder according to claim 1, characterized in that, The positioning component (7) includes a support plate (71) fixedly connected to the slider (3), a fixing bolt (72) is threadedly connected to the support plate (71), and a plurality of receiving parts (73) for receiving the fixing bolt (72) are fixed in the groove (21).

4. The high-precision magnetic separation equipment for removing impurities from metal powder according to claim 3, characterized in that, The receiving part (73) is configured as a threaded cylinder, and the fixing bolt (72) is threadedly connected inside the threaded cylinder.

5. A high-precision magnetic separation device for removing impurities from metal powder according to claim 1, characterized in that, Multiple positioning grooves (22) are provided on the inner wall of the slide groove (21). The multiple positioning grooves (22) are arranged along the height direction of the slide groove (21). The threaded cylinder is embedded and fixed in the positioning groove (22).

6. The high-precision magnetic separation equipment for removing impurities from metal powder according to claim 1, characterized in that, The connecting assembly (6) includes a fixed flange (61) which is coaxially arranged with the sliding ring (5). A plurality of positioning bolts (62) are threaded onto the fixed flange (61). The positioning bolts (62) pass through the extension tube (4) and are threaded onto the sliding ring (5).

7. The high-precision magnetic separation equipment for removing impurities from metal powder according to claim 1, characterized in that, A limiting rubber ring (8) is fixedly connected to the inner wall of the extension tube (4) near the sliding ring (5), and the limiting rubber ring (8) is coaxially arranged with the extension tube (4).

8. A high-precision magnetic separation device for removing impurities from metal powder according to claim 1, characterized in that, The extension tube (4) is a rubber hose. The adjustment assembly (11) includes a mounting bracket (111) installed on the vibrating screen (9). A connecting plate (112) is fixedly connected to the mounting bracket (111). A cylinder (113) is installed on the connecting plate (112). A lower pressure plate (114) is fixedly connected to the output end of the cylinder (113). The lower pressure plate (114) abuts against the upper side wall of the extension tube (4).

9. A high-precision magnetic separation device for removing impurities from metal powder according to claim 1, characterized in that, The support assembly (14) includes a telescopic rod (141), which is installed on the end face of the vibrating screen (9). A support frame (142) is fixedly connected to the telescopic rod (141), and the support frame (142) abuts against the lower end face of the extension tube (4).

10. A high-precision magnetic separation device for removing impurities from metal powder according to claim 9, characterized in that, The lower ends of the multiple magnetic separation rollers (12) are provided with the same collection hopper (15), the lower end of the collection hopper (15) is provided with a recycling conveyor belt (16), the upper part of the magnetic separation rollers (12) is provided with a dust collection hood (17), and a bag filter (18) is connected to the dust collection hood (17).

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