Sintered neodymium iron boron waste recovery device

Abstract

The utility model relates to the technical field of waste recovery, and discloses a sintered neodymium iron boron waste recovery device which is characterized in that the sorting rate is improved by arranging a hammer crusher, an eddy current sorting machine, a collecting box and other structures, crushed materials fall on the surface of a conveying belt and are conveyed by the conveying belt, a second motor is started, the second motor drives a barrel shell to rotate, and the barrel shell rotates; a magnetic field is formed around the barrel shell, the magnetic field and the magnetic field of the materials form repulsive force, metal objects in the materials are thrown out forwards, the metal objects are thrown out through repulsive of the permanent magnet rotor and enter the collecting box through flow division of the baffle, and the remaining metal objects are blocked by the baffle and fall down; and by controlling the sliding position of the baffle in the sliding groove, the particle size of the collected metal objects can be adjusted, and the effect of improving the sorting rate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling technology, and in particular to a sintered NdFeB waste recycling device. Background Technology

[0002] The sintered NdFeB waste recycling device is mainly used to process and recycle sintered NdFeB waste to improve resource utilization and reduce environmental pollution. This device extracts the useful components from the waste through a series of process steps, enabling resource reuse. The sintered NdFeB waste recycling device includes processes such as crushing, magnetic separation, drying and collection, and stirring and filtration.

[0003] Existing technologies have certain shortcomings in the crushing and sorting of materials. Commonly used crushing devices generate a lot of dust, and the sorting process uses devices such as fans to separate materials of different materials, resulting in a low sorting rate. Furthermore, the screening devices after sorting and collection are relatively complex and cannot perform multi-stage screening. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a sintered NdFeB waste recycling device, which has the advantages of improved sorting rate and multi-stage screening, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a sintered NdFeB waste recycling device, comprising a hammer crusher, a feed inlet at the top of the hammer crusher, a semi-circular and uniformly formed arc groove inside the hammer crusher, a screen fixedly installed at the bottom inside the hammer crusher, a rotating shaft rotatably installed inside the hammer crusher, a flywheel fixedly installed at the end of the rotating shaft outside the hammer crusher, hammers uniformly arranged in a linear array inside the hammer crusher on the outer ring of the rotating shaft, an inclined material box fixedly connected to the bottom of the hammer crusher, legs uniformly arranged in a rectangular array at the bottom of the inclined material box, an eddy current separator located below the inclined material box on one side of the hammer crusher, a collection box located on one side of the eddy current separator, and a vibrating screen connected to the bottom of the collection box.

[0006] With the above structural design, in practical applications, the material is crushed by the hammer crusher, and the arc groove is set to reduce the over-crushing of the material and reduce dust generation. The crushed material is then conveyed to the surface of the conveyor belt through the inclined box, and the material is separated by the eddy current of the permanent magnet rotor.

[0007] Preferably, the eddy current separator includes symmetrically arranged supports, with a conveyor belt rotatably mounted between the supports. A first motor is fixedly mounted at one end of one support, and a drive shaft is fixedly connected to the output shaft of the first motor. A driven housing is rotatably mounted between the supports on the inner ring of the conveyor belt. The drive shaft is connected to the driven housing via the conveyor belt. The driven housing and the drive shaft are symmetrical. A second motor is fixedly mounted at the other end of one support, and a cylindrical shell is fixedly connected to the output shaft of the second motor inside the driven housing. A permanent magnet rotor is uniformly arranged in a circular shape inside the cylindrical shell.

[0008] With the above-mentioned structural configuration, the second motor drives the cylinder to rotate, thereby generating a magnetic field in the permanent magnet rotor, which in turn generates a repulsive force with the metal material, throwing the material into the interior of the collection box.

[0009] Preferably, the two walls of the collection box are provided with two sliding grooves, and a baffle is slidably installed inside the sliding groove. Two sliding columns are provided on the side of the baffle, and the sliding columns are adapted to the shape of the sliding groove. The bottom wall of the collection box is provided with an inclined groove, and a flexible sleeve is connected between the inclined groove and the vibrating screen. The flexible sleeve is made of flexible material.

[0010] By adjusting the position of the baffle inside the chute using the above structural design, the size of the metal material entering the collection box can be changed.

[0011] Preferably, the vibrating screen includes a bottom cylinder, a lower frame at the top of the bottom cylinder, a spring connecting the bottom cylinder and the lower frame, a vibrating motor fixedly connected to the bottom of the lower frame, a circular protrusion in the middle of the bottom wall of the lower frame, a middle frame movably connected to the top of the lower frame, a bottom frame movably connected to the top of the middle frame, a flexible sleeve located between the top of the bottom frame and the bottom of the inclined chute, the connection between the bottom frame, middle frame, and lower frame being detachable, a centralized screen fixedly installed at the bottom of the middle frame and the bottom frame, and material discharge ports fixedly installed on the sides of the lower frame, middle frame, and bottom frame.

[0012] With the above structural setup, the material is evenly divided into three portions of metal particles with different diameters after passing through the vibrating screen through three-stage screening.

[0013] This utility model has the following advantages:

[0014] 1. This sintered NdFeB waste recycling device improves the sorting rate by incorporating a hammer crusher, eddy current separator, and collection box. The crushed material falls onto the surface of the conveyor belt and is transported by the conveyor belt. The second motor is started, which drives the cylinder shell to rotate and forms a magnetic field around the cylinder shell. This magnetic field repulses the magnetic field of the material, throwing the metal objects in the material forward. The metal objects are repelled by the permanent magnet rotor and diverted by the baffle into the inside of the collection box. The remaining metal objects are blocked by the baffle and fall down. By controlling the sliding position of the baffle inside the chute, the particle size of the collected metal objects can be adjusted, thereby improving the sorting rate.

[0015] 2. This sintered NdFeB waste recycling device achieves multi-stage screening by setting up a rotary vibrating screen, a vibrating motor, and a material discharge port. The metal objects falling into the collection box will fall into the bottom frame through the inclined chute. At this time, the vibrating motor is started, and the vibrating motor drives the lower frame, middle frame, and bottom frame to vibrate. The metal objects inside the bottom frame are screened by rotational vibration. Some particles are screened into the middle frame, and the other part is discharged through the material discharge port on one side. The screening principle of the middle frame is the same as that of the bottom frame. The metal particles falling into the lower frame are separated by circular protrusions, so that the particles are discharged from the material discharge port on one side. The metal materials are located inside the rotary vibrating screen and undergo three-stage screening, which achieves the effect of multi-stage screening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the hammer crusher of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the conveying device of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the collection box of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the vibrating screen of this utility model.

[0021] In the diagram: 1. Hammer crusher; 11. Feed inlet; 12. Arc groove; 13. Screw screen; 14. Flywheel; 15. Hammer head; 2. Inclined hopper; 21. Support leg; 3. Eddy current separator; 31. Support frame; 32. Conveyor belt; 33. First motor; 34. Drive shaft; 35. Driven housing; 36. Second motor; 37. Cylinder shell; 38. Permanent magnet rotor; 4. Collection box; 41. Slide chute; 42. Baffle; 43. Sliding column; 44. Inclined chute; 45. Flexible sleeve; 5. Vibrating screen; 51. Bottom cylinder; 52. Lower frame; 53. Vibrating motor; 54. Middle frame; 55. Bottom frame; 56. Centralized screen; 57. Material discharge port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-2 A sintered NdFeB waste recycling device includes a hammer crusher 1, with a feed inlet 11 at the top of the hammer crusher 1. The interior of the hammer crusher 1 has evenly spaced semi-circular arc grooves 12. A strainer 13 is fixedly installed at the bottom of the interior of the hammer crusher 1. A rotating shaft is rotatably installed inside the hammer crusher 1. A flywheel 14 is fixedly installed at the end of the rotating shaft outside the hammer crusher 1. Hammers 15 are evenly arranged in a linear array inside the hammer crusher 1 on the outer ring of the rotating shaft. An inclined material box 2 is fixedly connected to the bottom of the hammer crusher 1. Support legs 21 are evenly arranged in a rectangular array at the bottom of the inclined material box 2. An eddy current separator 3 is installed on one side of the hammer crusher 1 below the inclined material box 2. A collection box 4 is installed on one side of the eddy current separator 3. A vibrating screen 5 is connected to the bottom of the collection box 4.

[0024] In practical applications, the material is crushed by the hammer crusher 1, and the arc groove 12 is set to reduce the over-crushing of the material and reduce dust generation. The crushed material is conveyed to the surface of the conveyor belt 32 through the inclined box 2. The material is then separated by the eddy current of the permanent magnet rotor 38, so that the metal objects inside the material are thrown into the inside of the collection box 4. Subsequently, it is screened by the three-stage sieving of the vibrating screen 5 to achieve fine recycling.

[0025] Please see Figures 1-3 The eddy current separator 3 includes symmetrically arranged supports 31, with a conveyor belt 32 rotatably mounted between the supports 31. A first motor 33 is fixedly mounted at one end of one support 31, and a drive shaft 34 is fixedly connected to the output shaft end of the first motor 33. A driven housing 35 is rotatably mounted between the supports 31 on the inner ring of the conveyor belt 32. The drive shaft 34 is connected to the driven housing 35 through the conveyor belt 32. The driven housing 35 and the drive shaft 34 are located in a symmetrical direction. A second motor 36 is fixedly mounted at the other end of one support 31. A cylindrical shell 37 is fixedly connected to the output shaft end of the second motor 36 inside the driven housing 35. A permanent magnet rotor 38 is uniformly arranged in a circular shape inside the cylindrical shell 37.

[0026] When the material falls onto the surface of the conveyor belt 32, the first motor 33 is started, and the drive shaft 34 drives the material through the conveyor belt 32 to the driven shell 35, which smoothly transports the material on the surface of the conveyor belt 32. When the material passes the outer ring of the driven shell 35, the second motor 36 is started. The second motor 36 drives the cylinder shell 37 to rotate, thereby generating a magnetic field in the permanent magnet rotor 38, which generates a repulsive force with the metal material, throwing the material into the interior of the collection box 4.

[0027] Please see Figures 1-4 The two walls of the collection box 4 are provided with two sliding grooves 41. A baffle 42 is slidably installed inside the sliding groove 41. Two sliding columns 43 are provided on the side of the baffle 42. The sliding columns 43 are matched with the shape of the sliding groove 41. The bottom wall of the collection box 4 is provided with an inclined groove 44. A flexible sleeve 45 is connected between the inclined groove 44 and the vibrating screen 5. The flexible sleeve 45 is made of flexible material and can undergo slight deformation.

[0028] Adjusting the position of the baffle 42 inside the chute 41 can change the size of the metal material entering the collection box 4. After entering the collection box 4, the material falls into the bottom frame 55 through the inclined chute 44, achieving centralized collection.

[0029] Please see Figures 1-5 The vibrating screen 5 includes a bottom cylinder 51, a lower frame 52 at the top of the bottom cylinder 51, and a spring connecting the bottom cylinder 51 and the lower frame 52. A vibrating motor 53 is fixedly connected to the bottom of the lower frame 52. A circular protrusion is provided in the middle of the bottom wall of the lower frame 52. A middle frame 54 is movably connected to the top of the lower frame 52. A bottom frame 55 is movably connected to the top of the middle frame 54. A flexible sleeve 45 is located between the top of the bottom frame 55 and the bottom of the inclined chute 44. The connection between the bottom frame 55, the middle frame 54, and the lower frame 52 is detachable. A centralized screen 56 is fixedly installed at the bottom of the middle frame 54 and the bottom frame 55. Material discharge ports 57 are fixedly installed on the sides of the lower frame 52, the middle frame 54, and the bottom frame 55.

[0030] Through the three-stage screening of the vibrating screen 5, the material is evenly divided into three parts of metal particles with different diameters after passing through the vibrating screen 5. The large particles are screened out by the bottom frame 55 and discharged from the material discharge port 57 on one side of the bottom frame 55. The medium particles are screened out by the middle frame 54 and discharged from the material discharge port 57 on one side of the middle frame 54. The small particles fall into the lower frame 52 and are discharged from the material discharge port 57 on one side of the lower frame 52.

[0031] Working Principle: During operation, material is fed into the inlet 11. An external drive unit rotates the flywheel 14, which in turn rotates the hammer 15. The hammer 15, located inside the hammer crusher 1, crushes the material. The crushed material passes through the screen 13 and flows downwards, slowly falling onto the surface of the conveyor belt 32 via the inclined surface of the inclined box 2. The first motor 33 is started, driving the conveyor belt 32 to rotate cyclically between the drive shaft 34 and the outer ring of the driven shell 35. The crushed material then falls onto the surface of the conveyor belt 32 and is transported by it. The second motor 36 is started, driving the cylinder 37 to rotate and forming a magnetic field around it. This magnetic field repels the magnetic field of the material, throwing metal objects forward. The metal objects are then thrown forward by the repulsion of the permanent magnet rotor 38 and pass through the baffle 42. The diverted metal flows into the collection box 4, while the remaining metal is blocked by the baffle 42 and falls. By controlling the sliding position of the baffle 42 inside the chute 41, the particle size of the collected metal can be adjusted. The metal falling into the collection box 4 will fall into the bottom frame 55 through the inclined chute 44. At this time, the vibration motor 53 is started, and the vibration motor 53 drives the lower frame 52, the middle frame 54, and the bottom frame 55 to vibrate. The metal inside the bottom frame 55 is screened by the rotational vibration. Some particles are screened into the middle frame 54, and the other part is discharged through the material discharge port 57 on one side. The screening principle of the middle frame 54 is the same as that of the bottom frame 55. The metal particles falling into the lower frame 52 are separated by the circular protrusions, so that the particles are discharged from the material discharge port 57 on one side. The metal material is located inside the rotary vibrating screen 5 and undergoes three-stage screening, which can screen out metal particles of different sizes and achieve fine material screening.

Claims

1. A sintered NdFeB waste recycling device, comprising a hammer crusher (1), characterized in that: The hammer crusher (1) has a feed inlet (11) at the top. The hammer crusher (1) has a semi-circular arc groove (12) inside. The hammer crusher (1) has a mesh screen (13) fixedly installed at the bottom inside. The hammer crusher (1) has a rotating shaft inside. The end of the shaft is fixedly installed with a flywheel (14) outside the hammer crusher (1). The outer ring of the shaft is installed with hammers (15) in a linear array inside the hammer crusher (1). The bottom of the hammer crusher (1) is fixedly connected with an inclined box (2). The bottom of the inclined box (2) has a rectangular array of legs (21) evenly arranged. An eddy current separator (3) is provided on one side of the hammer crusher (1) below the inclined box (2). A collection box (4) is provided on one side of the eddy current separator (3). A vibrating screen (5) is connected to the bottom of the collection box (4).

2. The sintered NdFeB waste recycling device according to claim 1, characterized in that: The eddy current separator (3) includes symmetrically arranged brackets (31), with a conveyor belt (32) rotatably mounted between the brackets (31). A first motor (33) is fixedly mounted at one end of one side of the bracket (31), and a drive shaft (34) is fixedly connected to the output shaft end of the first motor (33). A driven housing (35) is rotatably mounted between the brackets (31) in the inner ring of the conveyor belt (32). The drive shaft (34) is connected to the driven housing (35) through the conveyor belt (32). The driven housing (35) and the drive shaft (34) are located in a symmetrical direction. A second motor (36) is fixedly mounted at the other end of one side of the bracket (31). A cylindrical shell (37) is fixedly connected to the output shaft end of the second motor (36) inside the driven housing (35). A permanent magnet rotor (38) is uniformly arranged in a circular shape inside the cylindrical shell (37).

3. The sintered NdFeB waste recycling device according to claim 2, characterized in that: The two walls of the collection box (4) are provided with two sliding grooves (41). A baffle (42) is slidably installed inside the sliding groove (41). Two sliding columns (43) are provided on the side of the baffle (42). The sliding columns (43) are adapted to the shape of the sliding groove (41). The bottom wall of the collection box (4) is provided with an inclined groove (44). A flexible sleeve (45) is connected between the inclined groove (44) and the vibrating screen (5). The flexible sleeve (45) is made of flexible material.

4. The sintered NdFeB waste recycling device according to claim 3, characterized in that: The vibrating screen (5) includes a bottom cylinder (51), a lower frame (52) is provided on the top of the bottom cylinder (51), the bottom cylinder (51) and the lower frame (52) are connected by a spring, a vibrating motor (53) is fixedly connected to the bottom of the lower frame (52), a circular protrusion is provided in the middle of the bottom wall of the lower frame (52), a middle frame (54) is movably connected to the top of the lower frame (52), a bottom frame (55) is movably connected to the top of the middle frame (54), a flexible sleeve (45) is located between the top of the bottom frame (55) and the bottom of the inclined groove (44), the connection between the bottom frame (55), the middle frame (54) and the lower frame (52) is detachable, a centralized screen (56) is fixedly installed at the bottom of the middle frame (54) and the bottom frame (55), and a material discharge port (57) is fixedly installed on the side of the lower frame (52), the middle frame (54) and the bottom frame (55).

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