Neodymium-iron-boron waste dust-free screening device
By designing a dust-free NdFeB scrap screening device, the partition frame and electromagnet adsorption magnetic substances combined with a vacuum cleaner to remove dust, the problem of dust diffusion during the screening of NdFeB scrap is solved, and environmentally friendly and efficient resource recycling is achieved.
Patent Information
- Application Number
- CN202422235412.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-12
AI Technical Summary
NdFeB waste produces a large amount of fine dust during the screening process, resulting in environmental pollution and health risks. It is difficult for the existing technology to effectively prevent the spread of dust.
A dust-free screening device including a support frame, a screening box, a partition frame, a transmission belt, a motor, a pulley assembly, an electromagnetic screening assembly and a vacuum cleaner is designed to prevent dust from being emitted through the partition frame, and an electromagnetic substance is absorbed by an electromagnetic magnet and combined with a vacuum cleaner to remove dust from non-magnetic substances to achieve dust-free screening.
Effectively prevent the diffusion of dust during the screening of neodymium iron boron waste, protect the environment and health, improve resource recycling efficiency, and reduce the risk of irritation to the skin and respiratory system.
Smart Images
Figure CN223184700U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a screening device, in particular to a dust-free screening device for NdFeB waste. Background Art
[0002] Neodymium iron boron magnets are widely used in various high-tech fields due to their high magnetic energy product and good magnetic properties. However, during the production and use of neodymium iron boron magnets, about 30% of waste is generated. The main components of the waste are rare earth and iron. Recycling waste can improve the utilization rate of rare earth and iron resources, reduce environmental pollution, and achieve the sustainable development of rare earth magnetic materials.
[0003] After recycling NdFeB waste, it first needs to be crushed and screened, and then sent to the sintering furnace for sintering and refining. During the screening process, NdFeB waste will produce a large amount of fine dust, which enters the air. The dust in NdFeB waste contains elements such as neodymium, iron, and boron. If the dust in NdFeB waste is blown away by the wind and falls into the soil or water source, it will cause pollution. Long-term exposure to NdFeB dust may cause irritation to the skin and eyes of workers, and inhalation of dust may cause respiratory diseases.
[0004] Therefore, it is necessary to design a dust-free screening device for NdFeB waste. Utility Model Content
[0005] In order to overcome the disadvantages that a large amount of fine dust will be generated during the screening process of NdFeB waste, and long-term exposure of workers to NdFeB dust may cause irritation to the skin and eyes, and inhalation of such dust may cause respiratory diseases and even heavy metal poisoning, the utility model provides a dust-free screening device for NdFeB waste.
[0006] Technical solution: A dust-free screening device for NdFeB waste, comprising a support frame, a screening box, a partition frame, a first motor, a first conveyor belt, a first pulley assembly and an electromagnetic screening assembly. A screening box is installed on the top of the support frame, a feeding port is provided on the screening box, a partition frame is installed in the screening box, the partition frame is located below the feeding port, a first motor is installed in the upper part of the screening box, a first conveyor belt is installed on the support frame, the first motor and the first conveyor belt are connected by a first pulley assembly, an electromagnetic screening assembly is installed on one side of the support frame, and also comprises a dust collector, an air guide box and an air duct. A dust collector is embedded in the support frame, an air guide box is installed in the lower part of the support frame, the air guide box is located below the feeding port, and the air guide box is connected and communicated with the dust collector through the air duct.
[0007] In addition, it is particularly preferred that the electromagnetic screening component has a mounting frame, a second transmission belt, a second motor, a second pulley assembly, a conductive block, an electromagnet and a wire, a mounting frame is installed on one side of the support frame, a second transmission belt is installed on the mounting frame, a second motor is installed on the side of the support frame close to the mounting frame, the second transmission belt and the second motor are transmitted through the second pulley assembly, a conductive block is installed on one side of the mounting frame, a plurality of electromagnets are installed on the inside of the second transmission belt, the electromagnets are in contact with the conductive block, and the positive and negative poles of the conductive block are each connected to a wire.
[0008] In addition, it is particularly preferred that it also includes a fixed rod, a toggle plate and a third pulley assembly, wherein fixed rods are fixedly connected on both sides of the screening box, and the fixed rods are rotatably provided with a toggle plate, and both ends of the toggle plate respectively pass through both sides of the screening box, and the toggle plate rotates to contact the first transmission belt, and the toggle plate and the first motor are transmitted through the third pulley assembly.
[0009] In addition, it is particularly preferred that a material receiving box is further included, and two material receiving boxes are installed on one side of the support frame close to the mounting frame, and the material receiving boxes are located below the second conveyor belt.
[0010] In addition, it is particularly preferred that a scraper plate is further included, and the scraper plate is installed on the side of the mounting frame away from the supporting frame, and the scraper plate is in contact with the second conveyor belt.
[0011] In addition, it is particularly preferred that a guide hopper is further included, and the guide hopper is installed on the top of the screening box, and the guide hopper is located above the partition frame.
[0012] The beneficial effects of the utility model are as follows: 1. NdFeB waste is added into the screening box through the feeding port, and the partition frame separates the feeding port from the cavity inside the screening box to prevent dust from overflowing when the NdFeB waste is added. The dust generated when the NdFeB waste falls on the first conveyor belt is sucked away by the dust collector through the air duct and the air duct box, thereby achieving the purpose of dust prevention.
[0013] 2. When the output shaft of the first motor rotates, the toggle plate rotates and squeezes the first conveyor belt up and down, thereby shaking the NdFeB waste falling on the first conveyor belt, so that the NdFeB waste on the first conveyor belt is dispersed, thereby facilitating the screening of the NdFeB waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the support frame, screening box and material guide frame of the utility model.
[0016] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the support frame, screening box and first conveyor belt of the utility model.
[0017] Figure 4 It is a schematic three-dimensional cross-sectional structural diagram of the screening box, dust collector and air guide box of the utility model.
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the vacuum cleaner, air guide box and air guide pipe of the utility model.
[0019] Figure 6 It is a schematic three-dimensional cross-sectional structure diagram of the mounting frame, the second conveyor belt and the scraper plate of the utility model.
[0020] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the conductive block, electromagnet and wire of the utility model.
[0021] Figure 8 It is a schematic three-dimensional cross-sectional structure diagram of the support frame, fixing rod and toggle plate of the utility model.
[0022] Among them, the above-mentioned drawings include the following figure marks: 1. support frame, 2. screening box, 3. partition frame, 4. first motor, 5. first conveyor belt, 6. first pulley assembly, 7. mounting frame, 8. second conveyor belt, 9. second motor, 10. second pulley assembly, 11. conductive block, 12. electromagnet, 13. wire, 14. vacuum cleaner, 15. air guide box, 16. air guide pipe, 17. fixing rod, 18. toggle plate, 19. third pulley assembly, 20. material receiving box, 21. scraper plate, 22. material guide hopper. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Example 1: A dust-free screening device for NdFeB waste, see Figure 1-Figure 7As shown, it includes a support frame 1, a screening box 2, a partition frame 3, a first motor 4, a first transmission belt 5, a first pulley assembly 6 and an electromagnetic screening assembly. The screening box 2 is installed on the top of the support frame 1 by means of bolt connection. A feeding port is provided on the screening box 2. A partition frame 3 is installed in the screening box 2 by means of bolt connection. The partition frame 3 is located below the feeding port. A guide hopper 22 is installed on the top of the screening box 2 by means of bolt connection. The guide hopper 22 is located above the partition frame 3. When NdFeB waste is added, the guide hopper 22 guides the NdFeB waste to prevent To prevent NdFeB waste from falling outside the screening box 2 during feeding, a first motor 4 is installed on the upper part of the screening box 2 by means of bolt connection. The output shaft of the first motor 4 passes through the front side of the screening box 2. A first transmission belt 5 is installed on the support frame 1. The first motor 4 and the first transmission belt 5 are connected through a first pulley assembly 6. The first pulley assembly 6 consists of two pulleys and a flat belt. Pulleys are installed on the output shaft of the first motor 4 and the first transmission belt 5. A flat belt is sleeved between the two pulleys. An electromagnetic screening assembly is installed on the left side of the support frame 1. The electromagnetic screen The optional components include a mounting frame 7, a second transmission belt 8, a second motor 9, a second pulley assembly 10, a conductive block 11, an electromagnet 12 and a wire 13. A mounting frame 7 is installed on one side of the support frame 1, and a second transmission belt 8 is installed on the mounting frame 7. A second motor 9 is installed on the side of the support frame 1 close to the mounting frame 7. The second transmission belt 8 and the second motor 9 are driven by the second pulley assembly 10. A conductive block 11 is installed on one side of the mounting frame 7 by bolt connection. A plurality of electromagnets 12 are embedded inside the second transmission belt 8, and the electromagnets 12 are in contact with the conductive block 11. The positive and negative poles of the conductive block 11 are each connected to a wire 13. A vacuum cleaner 14 is embedded in the support frame 1 and installed by bolt connection. An air guide box 15 is installed on the lower part of the support frame 1 by bolt connection. The air guide box 15 is located at the lower part of the feeding port. The air guide box 15 is connected and communicated with the vacuum cleaner 14 through an air guide pipe 16. A scraper plate 21 is installed on the left side of the mounting frame 7 by bolt connection. The scraper plate 21 is in contact with the second conveyor belt 8. Two material receiving boxes 20 are installed on the side of the support frame 1 close to the mounting frame 7. The material receiving box 20 is located below the second conveyor belt 8.
[0025] When it is necessary to screen the NdFeB waste, first start the first motor 4 and the second motor 9. The output shaft of the first motor 4 drives the first conveyor belt 5 to run through the first pulley assembly 6, and the second motor 9 drives the second conveyor belt 8 to run through the second pulley assembly 10. Then, the wire 13 is connected to the positive and negative poles of the external power supply to energize the conductive block 11. The second conveyor belt 8 drives the electromagnet 12 to contact the conductive block 11, so that the electromagnet 12 is energized to generate magnetism, and the vacuum cleaner 14 is started at the same time. Then, the NdFeB waste is added to the screening box 2 through the feeding port. The partition frame 3 separates the feeding port from the cavity inside the screening box 2 to prevent dust from overflowing when the NdFeB waste is added. The vacuum cleaner 14 is operated through the air duct 16 and the air guide box 15. Air is exhausted to suck away the dust generated when the NdFeB waste falls on the first conveyor belt 5, thereby achieving the purpose of dust prevention. The NdFeB waste is transported to the left through the first conveyor belt 5. When the NdFeB waste moves to the bottom of the second conveyor belt 8, the electromagnet 12 adsorbs the magnetic material in the waste onto the second conveyor belt 8, so that the magnetic material in the NdFeB waste is adsorbed. When passing through the scraper plate 21, the scraper plate 21 scrapes off the magnetic material adsorbed by the second conveyor belt 8, thereby achieving the purpose of screening. The scraper plate 21 scrapes off the magnetic material on the NdFeB waste on the second conveyor belt 8, and the magnetic material in the NdFeB waste falls down into one of the receiving boxes 20, and the non-magnetic material in the NdFeB waste falls down into the other receiving box 20.
[0026] Example 2: Based on Example 1, refer to Figure 8 As shown, it also includes a fixed rod 17, a toggle plate 18 and a third pulley assembly 19. The front and rear sides of the screening box 2 are fixedly connected with the fixed rod 17 by welding. The fixed rod 17 is rotatably provided with a toggle plate 18. The two ends of the toggle plate 18 respectively pass through the two sides of the screening box 2. The toggle plate 18 rotates to contact the first transmission belt 5. The toggle plate 18 and the first motor 4 are transmitted through the third pulley assembly 19.
[0027] When the output shaft of the first motor 4 rotates, the output shaft of the first motor 4 drives the toggle plate 18 to rotate through the third pulley assembly 19. The toggle plate 18 rotates to squeeze the first conveyor belt 5 up and down, causing the first conveyor belt 5 to fluctuate up and down, thereby shaking the NdFeB waste falling on the first conveyor belt 5, and dispersing the NdFeB waste on the first conveyor belt 5, thereby facilitating the screening of the NdFeB waste.
[0028] It should be understood that the embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A dust-free screening device for NdFeB waste, comprising a support frame (1), a screening box (2), a partition frame (3), a first motor (4), a first transmission belt (5), a first pulley assembly (6) and an electromagnetic screening assembly, wherein the screening box (2) is mounted on the top of the support frame (1), a feeding port is provided on the screening box (2), a partition frame (3) is mounted in the screening box (2), the partition frame (3) is located below the feeding port, a first motor (4) is mounted on the upper part of the screening box (2), a first transmission belt (5) is mounted on the support frame (1), the first motor (4) and the first transmission belt (5) are connected to each other by a first pulley assembly (6), and an electromagnetic screening assembly is mounted on one side of the support frame (1), wherein the electromagnetic screening assembly is mounted on one side of the support frame, and the electromagnetic screening assembly is mounted on the support frame (1), wherein the electromagnetic screening assembly is mounted on the side of the support frame, and the electromagnetic screening assembly is mounted on the support frame (1), wherein the electromagnetic screening assembly is mounted on the support frame (1), and the electromagnetic screening assembly is mounted on the support frame (1), wherein the electromagnetic screening assembly is mounted on the support frame (1), and the electromagnetic screening assembly is mounted on the support frame (1), The invention also includes a dust collector (14), an air guide box (15) and an air guide pipe (16). The dust collector (14) is embedded in the support frame (1), and the air guide box (15) is installed in the lower part of the support frame (1). The air guide box (15) is located at the lower part of the feeding port, and the air guide box (15) is connected and communicated with the dust collector (14) through the air guide pipe (16).
2. The dust-free screening device for NdFeB waste according to claim 1, wherein: The electromagnetic screening component comprises a mounting frame (7), a second transmission belt (8), a second motor (9), a second pulley assembly (10), a conductive block (11), an electromagnet (12) and a wire (13); the mounting frame (7) is mounted on one side of the support frame (1); the second transmission belt (8) is mounted on the mounting frame (7); the second motor (9) is mounted on the side of the support frame (1) close to the mounting frame (7); the second transmission belt (8) and the second motor (9) are driven by the second pulley assembly (10); the conductive block (11) is mounted on one side of the mounting frame (7); a plurality of electromagnets (12) are mounted on the inner side of the second transmission belt (8); the electromagnets (12) are in contact with the conductive block (11); and the positive and negative poles of the conductive block (11) are each connected to a wire (13).
3. The dust-free screening device for NdFeB waste according to claim 2, wherein: The invention also includes a fixed rod (17), a toggle plate (18) and a third pulley assembly (19). The two sides of the screening box (2) are fixedly connected with the fixed rod (17). The fixed rod (17) is rotatably provided with a toggle plate (18). The two ends of the toggle plate (18) respectively pass through the two sides of the screening box (2). The toggle plate (18) rotates to contact the first transmission belt (5). The toggle plate (18) and the first motor (4) are driven by the third pulley assembly (19).
4. The dust-free screening device for NdFeB waste according to claim 3, wherein: It also includes a material receiving box (20), two material receiving boxes (20) are installed on one side of the support frame (1) close to the mounting frame (7), and the material receiving boxes (20) are located below the second conveyor belt (8).
5. The dust-free screening device for NdFeB waste according to claim 4, characterized in that: It also includes a scraper plate (21), which is installed on the side of the mounting frame (7) away from the supporting frame (1), and the scraper plate (21) is in contact with the second conveyor belt (8).
6. A dust-free screening device for NdFeB waste according to claim 5, characterized in that: The invention also comprises a guide hopper (22), the guide hopper (22) is installed on the top of the screening box (2), and the guide hopper (22) is located above the partition frame (3).