Neodymium iron boron waste precipitate filtering device

Abstract

The neodymium iron boron waste sediment filtering device comprises a separation box and a discharging box elastically connected to the upper portion of the separation box, the top of the discharging box is connected with a feeding hopper, and a sieve plate is arranged between the feeding hopper and the discharging box; an elastic connecting assembly is arranged between the separating box and the discharging box and comprises a connecting plate, a first supporting plate and a first spring connected between the connecting plate and the first supporting plate, the connecting plate is fixedly installed at the four corners of the bottom face of the discharging box, and a separating assembly is arranged in the separating box; the separation assembly comprises a material pushing rod and a separation partition plate, the separation partition plate is of a magnetic plate structure, the material pushing rod is attached to the surface of the separation partition plate, the material pushing rod reciprocates on the upper surface of the separation partition plate through the driving assembly, and neodymium iron boron waste is extruded through the material pushing rod and the separation partition plate and then is separated from the separation partition plate. And the neodymium iron boron falls into the separation box through separation holes formed in the separation partition plate, so that neodymium iron boron in the waste is adsorbed to the surface of the separation partition plate after being separated and is filtered out.

Description

Technical Field

[0001] The invention relates to the technical field of NdFeB waste recycling, in particular to a NdFeB waste sediment filtering device. Background Art

[0002] NdFeB, in simple terms, is a kind of magnet. Unlike the magnets we usually see, it is called the "king of magnets" for its excellent magnetic properties. NdFeB contains a large amount of rare earth elements neodymium, iron and boron, and its characteristics are hard and brittle. Because the surface is easily oxidized and corroded, NdFeB must be treated with surface coating. Surface chemical passivation is one of the good solutions. As a kind of rare earth permanent magnet material, NdFeB has extremely high magnetic energy product and coercive force. At the same time, the advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology, making it possible to miniaturize, lighten and thin equipment such as instruments, electroacoustic motors, magnetic separation and magnetization. The advantages of NdFeB are high cost performance and good mechanical properties; the disadvantages are low operating temperature, poor temperature characteristics, and easy powdering and corrosion. It must be improved by adjusting its chemical composition and taking surface treatment methods to meet the requirements of practical applications.

[0003] At present, all NdFeB extraction devices are equipped with a grid device, but it is not an independent part. Moreover, the grid device currently requires an additional cleaning device, the operation is complicated, and the operation of taking out the precipitate is also relatively complicated.

[0004] The publication number "CN210809873U" discloses a grid device for NdFeB waste recovery and extraction, including an upper mounting plate and a lower mounting plate, which are connected by bolts and kept parallel, and a filter screen I, a brush plate, and a filter screen II are respectively arranged from the upper mounting plate to the lower mounting plate, and the mesh size of the filter screen II is smaller than that of the filter screen I. The grid device for NdFeB waste recovery and extraction, in the process of NdFeB waste recovery and extraction, removes the precipitate from the filter screen, the operation is simple and fast, after the precipitate is completely removed, the whole device can also be put into water, and the filter screen can be cleaned with a brush bar to keep it clean for the next use; the whole device has a simple structure and is easy to operate, and the brush plate operation kills two birds with one stone, which can not only take out the extraction precipitate, but also clean the device, which increases the practicality of the device and saves separate cleaning tools and steps.

[0005] However, the above device still has the following problems during implementation:

[0006] Most existing filtering devices use filter nets, and multiple groups of filter nets with different mesh sizes are set. After the material passes through multiple groups of filter nets, the required effective material is obtained for recycling. After long-term use, not only a large amount of material remains in the filter net that is difficult to clean, but there is also a hidden danger of incomplete material filtration during use. Summary of the invention

[0007] The object of the present invention is to provide a NdFeB waste sediment filtering device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A NdFeB waste sediment filtering device comprises a separation box and a feed box elastically connected to the top of the separation box, a feed hopper is connected to the top of the feed box, and a sieve plate is arranged between the feed hopper and the feed box;

[0010] A separation assembly is arranged in the separation box, and the separation assembly includes a push rod and a separation partition. The separation partition is arranged as a magnetic plate structure. The push rod is attached to the surface of the separation partition, and the push rod reciprocates on the upper surface of the separation partition through the driving assembly. After the NdFeB waste is squeezed by the push rod and the separation partition, it falls into the separation box through the separation hole opened in the separation partition, so that the NdFeB in the waste is separated, adsorbed on the surface of the separation partition, and filtered out.

[0011] Preferably, an elastic connection assembly is provided between the separation box and the discharge box, and the elastic connection assembly includes a connecting plate, a first support plate and a first spring connected between the connecting plate and the first support plate, the connecting plate is fixedly installed at the four corners of the bottom surface of the discharge box, the first support plate is fixedly installed at the outer wall of the separation box, the bottom surface of the connecting plate is fixedly connected with a spring rod, the spring rod passes through the first spring, and the spring rod and the first support plate are slidably connected.

[0012] Preferably, the separation partition is provided with convex surfaces in an equidistant array, and a plurality of groups of separation holes are opened in the separation partition, and the separation holes penetrate the convex surfaces vertically.

[0013] Preferably, four groups of linear guide rails are symmetrically arranged on both sides of the separation box, a vertical plate is fixedly installed on the moving block of the linear guide rail, two groups of vertical plate surfaces are elastically connected with shaft seats, and the push rod is rotatably installed between the two groups of shaft seats.

[0014] Preferably, two sets of slidably connected racks are symmetrically arranged below the separation partition in the separation box, the racks are connected to the bottom end of the vertical plate, gears are meshed below the racks, a drive shaft is connected between the two sets of gears, one end of the drive shaft extends to the outside of the separation box, a motor is fixedly installed outside the separation box, and the output shaft end of the motor is fixedly connected to one end of the drive shaft.

[0015] Preferably, a second support plate is fixedly installed on one side of the vertical plate, a guide rod is fixedly connected to the bottom of the shaft seat, the guide rod is slidably connected in the second support plate, a second spring is connected between the shaft seat and the second support plate, and the guide rod runs through the second spring.

[0016] Preferably, when the push rod moves in contact with the surface of the separation partition, the shaft seat slides up and down on one side of the vertical plate due to the convex surface of the equidistant array.

[0017] Preferably, push rods are provided on both sides of the shaft seat, and the push rods move up and down on one side of the vertical plate following the shaft seat. When the push rods move to the lowest position, the push rods are separated from the bottom surface of the discharge box; when the push rods move to the highest position, the discharge box can be pushed to the highest point.

[0018] Preferably, accordion plates are symmetrically arranged on both sides of the separation partition, and through grooves are opened in the accordion plates at the installation positions of the vertical plates. The accordion plates are located at the ends of the through grooves and extend and retract following the movement of the vertical plates.

[0019] Preferably, a bearing seat is fixedly installed on the top of the vertical plate, and a rotating shaft is rotatably installed between the two groups of bearing seats. There are several groups of paddle sleeves equidistantly arrayed on the surface of the rotating shaft, and the paddle sleeves extend to the bottom of the discharge box. The mesh number of the sieve plate is set to 450-550 meshes, and a discharge plate with several discharge holes is provided at the bottom of the discharge box, and the mesh number of the discharge plate is set to 350-450 meshes.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, a separation box is provided and a separation assembly is provided therein, including a push rod and a separation partition which are arranged in close contact, wherein the separation partition is provided as a magnetic plate structure, the push rod is in close contact with the surface of the separation partition, and the push rod reciprocates on the surface of the separation partition through a driving assembly, and the NdFeB waste is squeezed by the push rod and the separation partition, and then falls into the separation box through a separation hole provided in the separation partition, so that the NdFeB in the waste is separated, adsorbed on the surface of the separation partition, and finally filtered out;

[0022] 2. In the present invention, a rotating shaft is arranged between the material discharge box and the separation box, and a paddle sleeve is arranged in an equidistant array on the surface of the rotating shaft. The paddle sleeve is connected to the top of the vertical plate by a bearing seat. In the process of material discharge, the paddle sleeve acts on the bottom surface of the material discharge box to evenly lay the NdFeB waste sediment on the surface of the separation partition. When the paddle sleeve moves and rotates, the paddle on the paddle sleeve is used to hit the material discharge plate, so as to further prevent the material discharge plate from being blocked.

[0023] 3. In the present invention, the vertical plate is moved up and down, and the top rod is used to lift and reset the discharge box, thereby realizing the vibration of the discharge box and the feed hopper. A sieve plate is arranged between the feed hopper and the discharge box to perform primary screening on the initially input NdFeB waste. The mesh number of the sieve plate is set to 450-550 mesh, which can quickly separate waste particles of different sizes and then enter the discharge box. A discharge plate with a plurality of discharge holes is arranged at the bottom of the discharge box. The mesh number of the discharge plate is set to 350-450 mesh, and the NdFeB waste after the primary screening is subjected to secondary separation and then enters the separation box, so that the material falls smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main viewing direction three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a partial explosion structure in the main viewing direction of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the separation box of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0028] Figure 5 It is a partial cross-sectional structural schematic diagram of the separation box of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the separation component of the present invention.

[0030] In the figure: 1. separation box; 2. feed hopper; 3. discharge box; 4. sieve plate; 5. connecting plate; 6. first spring; 7. first support plate; 8. spring rod; 9. separation partition; 10. push rod; 11. rotating shaft; 12. paddle sleeve; 13. bearing seat; 14. convex surface; 15. separation hole; 16. push rod; 17. accordion plate; 18. linear guide rail; 19. motor; 20. drive shaft; 21. gear; 22. rack; 23. vertical plate; 24. shaft seat; 25. guide rod; 26. second spring; 27. second support plate; 28. discharge hole; 29. ​​discharge plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-6 , the present invention provides a technical solution:

[0033] Embodiment 1:

[0034] A NdFeB waste sediment filtering device comprises a separation box 1 and a feed box 3 elastically connected to the top of the separation box 1, a feed hopper 2 is connected to the top of the feed box 3, and a sieve plate 4 is arranged between the feed hopper 2 and the feed box 3;

[0035] In this embodiment, a sieve plate 4 is arranged between the feed hopper 2 and the discharge box 3 to perform preliminary screening on the initially input NdFeB waste. The mesh number of the sieve plate 4 is set to 450-550 mesh, which can quickly separate waste particles of different sizes and then enter the discharge box 3. A discharge plate 29 with a plurality of discharge holes 28 is arranged at the bottom of the discharge box 3. The mesh number of the discharge plate 29 is set to 350-450 mesh, and the NdFeB waste after the preliminary screening is subjected to secondary separation and then enters the separation box 1.

[0036] Embodiment 2:

[0037] Based on the separation box 1 of the embodiment, the NdFeB waste is filtered only by the sieve plate 4 and the feed plate 29. After long-term use, not only a large amount of material remains on the filter screen and is difficult to clean, but also there is a hidden danger of incomplete material filtration during use;

[0038] A separation component is arranged in the separation box 1, and the separation component includes a push rod 16 and a separation partition 9. The separation partition 9 is arranged as a magnetic plate structure. The push rod 16 is attached to the surface of the separation partition 9, and the push rod 16 reciprocates on the upper surface of the separation partition 9 through the driving component. After the NdFeB waste is squeezed by the push rod 16 and the separation partition 9, it falls into the separation box 1 through the separation hole 15 opened in the separation partition 9, so that the NdFeB in the waste is separated, adsorbed on the surface of the separation partition 9, and filtered out.

[0039] In this embodiment, a set of separation baffles 9 with a magnetic plate structure is provided. In the process of separating the NdFeB waste sediment, the effective material NdFeB is adsorbed on the surface of the separation baffle 9, and other sediment waste falls into the separation box 1 through the separation hole 15, thereby achieving the NdFeB filtering effect;

[0040] It should be noted that the separation baffle 9 is configured with a plurality of convex surfaces 14 so that the deposition time of the NdFeB waste precipitate on the surface of the separation baffle 9 is prolonged, and the NdFeB is fully and thoroughly filtered through the extrusion of the push rod 16 and the separation baffle 9.

[0041] Considering the setting of the separation partition 9 structure, the push rod 16 needs to move up and down during the lateral movement to ensure that the push rod 16 and the separation partition 9 are fully fitted to ensure the squeezing effect of the push rod 16 and the separation partition 9 on the NdFeB waste sediment.

[0042] The separation baffle 9 is provided with convex surfaces 14 in an equidistant array, and a plurality of groups of separation holes 15 are opened in the separation baffle 9. The separation holes 15 penetrate the convex surfaces 14 vertically.

[0043] A separation hole 15 is provided in the separation baffle 9. Although a convex surface 14 is provided in the separation baffle 9, the penetration direction of the separation hole 15 is still perpendicular to the convex surface 14, so as to ensure that the filtered waste falls smoothly.

[0044] Specifically, two sets of slidably connected racks 22 are symmetrically arranged below the separation partition 9 in the separation box 1, and the racks 22 are connected to the bottom end of the vertical plate 23. A gear 21 is meshed below the rack 22, and a drive shaft 20 is connected between the two sets of gears 21. One end of the drive shaft 20 extends to the outside of the separation box 1, and a motor 19 is fixedly installed outside the separation box 1, and the output shaft end of the motor 19 is fixedly connected to one end of the drive shaft 20.

[0045] Start the motor 19 to drive the drive shaft 20 to rotate. Since the surface of the drive shaft 20 is connected to the gear 21, when the gear 21 rotates, the rack 22 is driven to slide in the separation box 1. Since the vertical plate 23 is connected to the rack 22, the push rod 16 is connected to the vertical plate 23 through the shaft seat 24. Therefore, starting the motor 19 can drive the push rod 16 to reciprocate on the upper surface of the separation partition 9.

[0046] A second support plate 27 is fixedly mounted on one side of the vertical plate 23, a guide rod 25 is fixedly connected to the bottom of the shaft seat 24, and the guide rod 25 is slidably connected in the second support plate 27. A second spring 26 is connected between the shaft seat 24 and the second support plate 27, and the guide rod 25 runs through the second spring 26. When the push rod 16 moves in contact with the surface of the separation partition 9, the shaft seat 24 slides up and down on one side of the vertical plate 23 due to the action of the convex surface 14 of the equidistant array.

[0047] In this embodiment, due to the provision of the convex surface 14, the push rod 16 needs to move up and down during the movement process to ensure the fit and rolling between the push rod 16 and the separation partition 9, so as to achieve the filtration of the NdFeB waste sediment. When the push rod 16 moves to the arc-shaped top surface of the convex surface 14, the second spring 26 is stretched, and when the push rod 16 moves to the arc-shaped bottom surface of the convex surface 14, the second spring 26 is reset, so that the push rod 16 and the separation partition 9 are always kept in contact, and the NdFeB waste sediment is rolled.

[0048] Specifically, four groups of linear guide rails 18 are symmetrically arranged on both sides of the separation box 1, and vertical plates 23 are fixedly installed on the moving blocks of the linear guide rails 18. The surfaces of the two groups of vertical plates 23 are elastically connected with shaft seats 24, and the push rod 16 is rotatably installed between the two groups of shaft seats 24.

[0049] In this embodiment, four sets of linear guide rails 18 are provided to ensure the structural stability of the vertical plate 23 and its connecting structure during the movement.

[0050] The accordion plates 17 are symmetrically arranged on both sides of the separation partition 9 . A through slot is opened in the accordion plates 17 at the installation position of the vertical plate 23 . The accordion plates 17 are located at the ends of the through slot and extend and retract following the movement of the vertical plate 23 .

[0051] In this embodiment, in order to prevent the NdFeB waste precipitate from falling directly into the separation box 1 without being squeezed and filtered by the separation baffle 9 and the push rod 16, accordion plates 17 are provided on both sides of the separation baffle 9 for blocking. The accordion plates 17 utilize the telescopic properties to follow the reciprocating movement of the vertical plates 23, i.e., the related structures, thereby achieving the function of blocking the materials and not interfering with the reciprocating movement of the push rod 16.

[0052] Embodiment three:

[0053] Based on the second embodiment, when the NdFeB waste sediment falls through the feed hopper 2 and the discharge box 3, the falling speed is slow due to the weight of the material itself, and when there is no impact force on the waste, there is still a risk of clogging the screen plate;

[0054] Push rods 10 are arranged on both sides of the shaft seat 24. The push rods 10 move up and down on one side of the vertical plate 23 following the shaft seat 24. When the push rods 10 move to the lowest position, the push rods 10 and the bottom surface of the discharge box 3 are separated; when the push rods 10 move to the highest position, the discharge box 3 can be pushed to the highest position.

[0055] In the second embodiment, the sliding driving source of the shaft seat 24 on one side of the vertical plate 23 can drive the top rod 10 to move up and down. By utilizing the up and down movement of the top rod 10, the reciprocating lifting and lowering box 3 moves above the separation box 1.

[0056] Specifically, an elastic connection component is arranged between the separation box 1 and the discharge box 3, and the elastic connection component includes a connecting plate 5, a first support plate 7 and a first spring 6 connected between the connecting plate 5 and the first support plate 7. The connecting plate 5 is fixedly installed at the four corners of the bottom surface of the discharge box 3, and the first support plate 7 is fixedly installed on the outer wall of the separation box 1. A spring rod 8 is fixedly connected to the bottom surface of the connecting plate 5, and the spring rod 8 runs through the first spring 6, and the spring rod 8 and the first support plate 7 are slidably connected.

[0057] In this embodiment, when the push rod 10 moves to the highest position, it can push the lower material box 3 to the highest point, the first spring 6 is stretched, and the lower material box 3 moves upward due to the lifting force of the push rod 10; when the push rod 10 moves to the lowest position, the push rod 10 and the bottom surface of the lower material box 3 are separated, the first spring 6 is reset, and the lower material box 3 is pulled to its original position; thereby, the vibration of the lower material box 3 and the feed hopper 2 is achieved, so that the material falls smoothly.

[0058] A bearing seat 13 is fixedly installed on the top of the vertical plate 23, and a rotating shaft 11 is rotatably installed between two groups of the bearing seats 13. A plurality of groups of paddle sleeves 12 are equidistantly arrayed on the surface of the rotating shaft 11, and the paddle sleeves 12 extend to the bottom of the discharge box 3.

[0059] It should be noted that a rotating shaft 11 is arranged at the bottom of the material box 3, and a paddle sleeve 12 is arranged in an equidistant array on the surface of the rotating shaft 11. The paddle sleeve 12 is connected to the top of the vertical plate 23 by a bearing seat 13. In the process of blanking, the paddle sleeve 12 acts on the bottom surface of the material box 3 to evenly spread the NdFeB waste sediment on the surface of the separation partition 9. While the paddle sleeve 12 moves and rotates, the paddle on the paddle sleeve 12 is used to hit the material plate 29.

[0060] Specifically, the paddles arranged on the outer ring of the paddle sleeve 12 are set as rubber plates, which can not only realize the above-mentioned material-prying function, but also minimize the wear of the paddle sleeve 12 and the damage to the blanking plate 29 when hitting the blanking plate 29.

[0061] Working principle: During the use of the device, the NdFeB waste sediment is put into the feed hopper 2, falls into the discharge box 3 through the sieve plate 4, and then falls into the separation box 1 through the discharge plate 29 at the bottom of the discharge box 3 after being filtered;

[0062] Start the motor 19 to drive the drive shaft 20 to rotate. Since the surface of the drive shaft 20 is connected to a gear 21, when the gear 21 rotates, the rack 22 is driven to slide in the separation box 1. Since the vertical plate 23 is connected to the rack 22, the push rod 16 is connected to the vertical plate 23 through the shaft seat 24. Therefore, the start of the motor 19 can drive the push rod 16 to move back and forth on the upper surface of the separation partition 9. The push rod 16 is attached to the surface of the separation partition 9, and the push rod 16 moves back and forth on the upper surface of the separation partition 9 through the driving assembly. After the NdFeB waste is squeezed by the push rod 16 and the separation partition 9, it falls into the separation box 1 through the separation hole 15 opened in the separation partition 9, so that the NdFeB in the waste is separated and adsorbed on the surface of the separation partition 9 and filtered out;

[0063] A set of separation baffles 9 with a magnetic plate structure is provided. In the process of separating the NdFeB waste sediment, the effective material NdFeB is adsorbed on the surface of the separation baffle 9, and other sediment waste falls into the separation box 1 through the separation hole 15, thereby achieving the NdFeB filtering effect;

[0064] Due to the convex surface 14, the push rod 16 needs to move up and down during the movement process to ensure the fit and rolling between the push rod 16 and the separation baffle 9, so as to achieve the filtration of the NdFeB waste sediment. When the push rod 16 moves to the arc-shaped top surface of the convex surface 14, the second spring 26 is stretched, and when the push rod 16 moves to the arc-shaped bottom surface of the convex surface 14, the second spring 26 is reset, so that the push rod 16 and the separation baffle 9 always keep fit, and the NdFeB waste sediment is rolled;

[0065] When the push rod 10 moves to the highest position, it can push the lower material box 3 to the highest point, the first spring 6 is stretched, and the lower material box 3 moves upward due to the lifting force of the push rod 10; when the push rod 10 moves to the lowest position, the push rod 10 and the bottom surface of the lower material box 3 are separated, the first spring 6 is reset, and the lower material box 3 is pulled to the original position; thereby, the vibration of the lower material box 3 and the feed hopper 2 is realized, so that the material falls smoothly.

[0066] It should be noted that the separation baffle 9 is configured with a plurality of convex surfaces 14 so that the deposition time of the NdFeB waste precipitate on the surface of the separation baffle 9 is prolonged, and the NdFeB is fully and thoroughly filtered through the extrusion of the push rod 16 and the separation baffle 9.

[0067] It should be noted that the motor 19 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they are not described in detail.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A NdFeB waste sediment filtering device, comprising a separation box (1) and a feed box (3) elastically connected to the top of the separation box (1), wherein the top of the feed box (3) is connected to a feed hopper (2), characterized in that: A sieve plate (4) is provided between the feed hopper (2) and the discharge box (3); A separation component is arranged in the separation box (1), and the separation component includes a push rod (16) and a separation baffle (9). The separation baffle (9) is arranged as a magnetic plate structure. The push rod (16) is attached to the surface of the separation baffle (9), and the push rod (16) reciprocates on the upper surface of the separation baffle (9) through the driving component. After the NdFeB waste is squeezed by the push rod (16) and the separation baffle (9), it falls into the separation box (1) through the separation hole (15) opened in the separation baffle (9), so that the NdFeB in the waste is separated, adsorbed on the surface of the separation baffle (9), and filtered out.

2. The NdFeB waste sediment filtering device according to claim 1, characterized in that: An elastic connection component is provided between the separation box (1) and the discharge box (3), and the elastic connection component comprises a connection plate (5), a first support plate (7) and a first spring (6) connected between the connection plate (5) and the first support plate (7); the connection plate (5) is fixedly mounted on the four corners of the bottom surface of the discharge box (3); the first support plate (7) is fixedly mounted on the outer wall of the separation box (1); a spring rod (8) is fixedly connected to the bottom surface of the connection plate (5); the spring rod (8) runs through the first spring (6), and the spring rod (8) and the first support plate (7) are slidably connected.

3. The NdFeB waste sediment filtering device according to claim 1, characterized in that: The separation baffle (9) is provided with convex surfaces (14) in an equidistant array, and a plurality of groups of separation holes (15) are opened in the separation baffle (9), wherein the separation holes (15) penetrate the convex surface (14) vertically.

4. The NdFeB waste sediment filtering device according to claim 1, characterized in that: Four groups of linear guide rails (18) are symmetrically arranged on both sides of the separation box (1), and a vertical plate (23) is fixedly installed on the moving block of the linear guide rail (18). The surfaces of the two groups of vertical plates (23) are elastically connected with shaft seats (24), and the push rod (16) is rotatably installed between the two groups of shaft seats (24).

5. The NdFeB waste sediment filtering device according to claim 4, characterized in that: Two groups of slidably connected racks (22) are symmetrically arranged in the separation box (1) below the separation partition (9); the racks (22) are connected to the bottom end of the vertical plate (23); a gear (21) is meshed below the racks (22); a drive shaft (20) is connected between the two groups of gears (21); one end of the drive shaft (20) extends to the outside of the separation box (1); a motor (19) is fixedly installed outside the separation box (1); the output shaft end of the motor (19) is fixedly connected to one end of the drive shaft (20).

6. The NdFeB waste sediment filtering device according to claim 4, characterized in that: A second support plate (27) is fixedly mounted on one side of the vertical plate (23); a guide rod (25) is fixedly connected to the bottom of the shaft seat (24); the guide rod (25) is slidably connected in the second support plate (27); a second spring (26) is connected between the shaft seat (24) and the second support plate (27); and the guide rod (25) runs through the second spring (26).

7. The NdFeB waste sediment filtering device according to claim 1, characterized in that: When the push rod (16) moves in contact with the surface of the separation partition (9), the shaft seat (24) slides up and down on one side of the vertical plate (23) due to the action of the convex surfaces (14) in the equidistant array.

8. The NdFeB waste sediment filtering device according to claim 7, characterized in that: Push rods (10) are arranged on both sides of the shaft seat (24). The push rods (10) move up and down on one side of the vertical plate (23) following the shaft seat (24). When the push rods (10) move to the lowest position, the push rods (10) and the bottom surface of the material box (3) are separated; when the push rods (10) move to the highest position, the material box (3) can be pushed to the highest position.

9. The NdFeB waste sediment filtering device according to claim 7, characterized in that: The separation partition (9) is symmetrically provided with accordion plates (17), a through slot is provided in the accordion plate (17) at the installation position of the vertical plate (23), and the accordion plate (17) is located at the end of the through slot and expands and contracts following the movement of the vertical plate (23).

10. The NdFeB waste sediment filtering device according to claim 8, characterized in that: A bearing seat (13) is fixedly installed on the top of the vertical plate (23), and a rotating shaft (11) is rotatably installed between two groups of the bearing seats (13). A plurality of groups of paddle sleeves (12) are arranged in an equidistant array on the surface of the rotating shaft (11), and the paddle sleeves (12) extend to the bottom of the discharge box (3). The mesh number of the sieve plate (4) is set to 450-550 meshes. A discharge plate (29) with a plurality of discharge holes (28) is provided at the bottom of the discharge box (3), and the mesh number of the discharge plate (29) is set to 350-450 meshes.

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