Electrostatic sorting device of waste circuit board recovery production line

Abstract

The utility model relates to the technical field of waste plastic recovery, and discloses an electrostatic sorting device of a waste circuit board recovery production line, which comprises a crushing box, a blanking hopper is fixedly connected to the bottom end of the crushing box, a screening box is fixedly connected to the bottom end of the blanking hopper, and a discharge port is fixedly connected to the left side of the screening box. The left end of the discharging port is fixedly connected with an auger, the right side of the crushing box is fixedly connected with a first supporting frame, the right side of the first supporting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a gear set, and the left side of the gear set is fixedly connected with a toothed bar. The bottom end of the inner side of the screening box is fixedly connected with evenly-distributed springs. According to the waste circuit board screening device, waste circuit boards are broken and screened, particles which cannot be screened are conveyed back into the crushing box again through the right auger to be smashed again, and therefore it is guaranteed that the sizes of the screened particles are consistent, and the screening efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste plastic recycling, in particular to an electrostatic sorting device for a waste circuit board recycling production line. Background Art

[0002] Waste circuit boards are an important source of important metal resources in electronic waste, including valuable materials such as gold, silver, copper, and aluminum. The recycling and treatment of waste circuit boards are essential for resource reuse and environmental protection. However, waste circuit boards usually contain many different types of materials, such as metals, plastics, and ceramics, which makes their sorting and treatment complicated and difficult. Therefore, it is of great engineering significance to design an electrostatic sorting device for waste circuit board recycling production lines to improve sorting efficiency, accuracy, and reliability.

[0003] After searching, the existing patent (Announcement No.: CN214163662U) discloses a plastic particle electrostatic sorting device, the purpose of which is to solve the technical problem that in the existing waste plastic recycling process, waste plastic particles need to be electrostatically sorted, and most of the existing electrostatic sorting devices have poor particle collision friction charging effect, so the sorting efficiency is low and the practicality is not strong. The plastic particle electrostatic sorting device is fixed with a discharge hopper at the bottom of both sides of the box body, and the discharge hopper is connected to the first chute, the middle of the top of the box body is connected to the first feed hopper, the two sides of the box body are fixed with conveying members, and a feeding mechanism is arranged between the two conveying members. A second chute is opened in the middle of the bottom end of the box body, and the bottom of the second chute is connected to the bottom of one of the conveying members, and the bottom of one side of the other conveying member is connected to the second feed hopper, and both sides of the top of the first feed hopper are provided with an inclined guide frame, and the inclined guide frame is connected to the conveying member.

[0004] However, in the above scheme, different electrostatic suction forces are required for waste materials with different diameters, and the efficiency of sorting particles of different sizes is low under the same suction force.

[0005] In view of this, the utility model proposes an electrostatic sorting device for a waste circuit board recycling production line. Utility Model Content

[0006] The utility model provides an electrostatic sorting device for a waste circuit board recycling production line, which solves the problem of low screening efficiency of waste particles of different sizes under the same suction force in the related art.

[0007] The technical solution of the utility model is as follows: an electrostatic sorting device for a waste circuit board recycling production line, comprising a crushing box, a lower hopper fixedly connected to the bottom end of the crushing box, a screening box fixedly connected to the left side of the screening box, a discharge port fixedly connected to the left end of the discharge port, an auger fixedly connected to the first support frame fixedly connected to the right side of the crushing box, a first motor fixedly connected to the right side of the first support frame, a gear set fixedly connected to the output end of the first motor, a gear rod fixedly connected to the left side of the gear set, a uniformly distributed spring fixedly connected to the bottom end of the inner side of the screening box, a sieve plate fixedly connected to the top end of the spring, and a vibration motor fixedly connected to the bottom side of the middle end of the sieve plate.

[0008] Preferably, a transmission belt is fixedly connected to the bottom end of the screening box, and a second support frame is fixedly connected to the top side of the middle end of the transmission belt.

[0009] Preferably, a second motor is fixedly connected to the bottom side of the middle end of the second support frame, and a transmission rod is fixedly connected to the output end of the second motor.

[0010] Preferably, a transmission frame is slidably connected to the outer side of the bottom end of the transmission rod, and a first rack is fixedly connected to the rear end of the transmission frame.

[0011] Preferably, the bottom end of the first rack is fixedly connected to a first pressing plate, the rear end of the first rack is slidably connected to a second limiting frame, and the second limiting frame is fixedly connected to the second supporting frame.

[0012] Preferably, the front end of the first rack is meshingly connected with a transmission tooth, and the bottom end of the transmission tooth is rotatably connected with a bottom plate.

[0013] Preferably, a third limiting frame opposite to the left and right is fixedly connected to the outer side of the top end of the bottom plate, and the third limiting frame is fixedly connected to the second supporting frame.

[0014] Preferably, the front end of the transmission tooth is meshingly connected with a second rack, and the bottom end of the second rack is fixedly connected with a second pressing plate.

[0015] Preferably, a first limiting frame is slidably connected to the front end of the second rack, and the first limiting frame is fixedly connected to the second supporting frame.

[0016] Preferably, the top right side of the transmission belt is fixedly connected with left and right opposite sorters.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. The utility model realizes the crushing and screening of waste circuit boards through the arrangement of the crushing box, the lower hopper, the screening box, the discharge port, the auger, the first motor, the first support frame, the gear set, the gear rod, the transmission belt, the spring, the screen plate and the vibration motor, and the particles that cannot be screened are transported back to the crushing box through the right auger for re-crushing, thereby ensuring that the size of the screened particles is consistent, thereby increasing the screening efficiency of the device;

[0019] 2. The utility model realizes the flattening of the crushed granular fertilizer by setting up the second support frame, the second motor, the transmission rod, the transmission frame, the first rack, the first pressing plate, the transmission teeth, the second rack, the second pressing plate, the first limiting frame, the second limiting frame, the third limiting frame and the bottom plate, so as to facilitate the subsequent screening of the waste particles and avoid affecting the screening of the particles at the bottom due to accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the second support frame of the utility model;

[0023] Figure 3 This is a schematic diagram of the crushing box structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the gear rod structure of the utility model.

[0025] In the figure: 1. crushing box; 2. lower hopper; 3. screening box; 4. discharge port; 5. auger; 6. first motor; 7. first support frame; 8. gear set; 9. gear rod; 10. transmission belt; 11. spring; 12. sieve plate; 13. vibration motor; 14. second support frame; 15. second motor; 16. transmission rod; 17. transmission frame; 18. first rack; 19. first pressure plate; 20. transmission gear; 21. second rack; 22. second pressure plate; 23. first limit frame; 24. second limit frame; 25. third limit frame; 26. bottom plate; 27. sorter. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] A preferred embodiment of the electrostatic separation device of the waste circuit board recycling production line provided by the utility model is as follows: Figures 1 to 4 As shown: an electrostatic sorting device for a waste circuit board recycling production line, including a crushing box 1, a lower hopper 2 is fixedly connected to the bottom of the crushing box 1, a screening box 3 is fixedly connected to the bottom of the lower hopper 2, a discharge port 4 is fixedly connected to the left side of the screening box 3, a screw dragon 5 is fixedly connected to the left end of the discharge port 4, a first support frame 7 is fixedly connected to the right side of the crushing box 1, a first motor 6 is fixedly connected to the right side of the first support frame 7, a gear set 8 is fixedly connected to the output end of the first motor 6, a gear rod 9 is fixedly connected to the left side of the gear set 8, and a uniformly distributed spring is fixedly connected to the bottom end of the inner side of the screening box 3 11. A sieve plate 12 is fixedly connected to the top of the spring 11, and a vibration motor 13 is fixedly connected to the bottom side of the middle end of the sieve plate 12. The front and rear gears of the gear set 8 cooperate with each other to drive the corresponding gear rod 9 to rotate, so that the waste circuit board is crushed. Then, the sieve plate 12 is driven by the vibration motor 13 to vibrate, so as to screen the crushed waste particles falling from the upper end. The particles that meet the size continue to fall through the screening holes on the sieve plate 12, while the larger particles enter the auger 5 through the discharge port 4 on the right and are re-transported back to the crushing box 1 for further crushing.

[0029] Example 2

[0030] Based on Example 1, a preferred embodiment of an electrostatic separation device for a waste circuit board recycling production line provided by the utility model is as follows: Figures 1 to 4 As shown: a transmission belt 10 is fixedly connected to the bottom end of the screening box 3, and a second support frame 14 is fixedly connected to the top side of the middle end of the transmission belt 10, and the crushed waste particles are transported to the right side through the transmission belt 10.

[0031] In this embodiment, a second motor 15 is fixedly connected to the bottom side of the middle end of the second support frame 14 , and a transmission rod 16 is fixedly connected to the output end of the second motor 15 .

[0032] In this embodiment, a transmission frame 17 is slidably connected to the outer side of the bottom end of the transmission rod 16, and a first rack 18 is fixedly connected to the rear end of the transmission frame 17. The rotation of the transmission rod 16 drives the transmission frame 17 to move left and right, thereby driving the first rack 18 to move synchronously through the transmission frame 17.

[0033] In this embodiment, the bottom end of the first rack 18 is fixedly connected to the first pressing plate 19, and the rear end of the first rack 18 is slidably connected to the second limit frame 24. The second limit frame 24 is fixedly connected to the second support frame 14. The first rack 18 drives the first pressing plate 19 to move, so that the waste particles being transported are flattened by the first pressing plate 19, thereby ensuring that the thickness of the particle accumulation is consistent.

[0034] In this embodiment, the front end of the first rack 18 is meshedly connected with a transmission tooth 20 , and the bottom end of the transmission tooth 20 is rotatably connected with a bottom plate 26 .

[0035] In this embodiment, the outer side of the top of the bottom plate 26 is fixedly connected with a third limiting frame 25 opposite to the left and right. The third limiting frame 25 is fixedly connected to the second support frame 14. The bottom plate 26 is fixed by the third limiting frame 25, so that the transmission gear 20 is supported by the bottom plate 26.

[0036] In this embodiment, the front end of the transmission tooth 20 is meshedly connected with the second rack 21, and the bottom end of the second rack 21 is fixedly connected with the second pressing plate 22. The transmission tooth 20 is driven to rotate by the first rack 18, thereby driving the second rack 21 to move through the transmission tooth 20.

[0037] In this embodiment, the front end of the second rack 21 is slidably connected to the first limiting frame 23, and the first limiting frame 23 is fixedly connected to the second support frame 14. The first rack 18 and the second rack 21 are supported and limited by the second limiting frame 24 and the first limiting frame 23 on both sides.

[0038] Furthermore, the top right side of the transmission belt 10 is fixedly connected with left and right opposite sorters 27, and waste particles are screened by multiple sorters 27, and different types of particles are screened by setting different degrees of electrostatic suction.

[0039] The working principle and use process of the utility model are as follows: when the electrostatic sorting device of the waste circuit board recycling production line is running, power is first output through the first motor 6, and the gear set 8 is driven to rotate through the first motor 6, so that the corresponding gear rod 9 on the right is driven to rotate in the opposite direction through the gear set 8, so that the waste circuit boards are crushed, and then the crushed waste particles fall into the lower screening box 3 through the lower hopper 2, and then the sieve plate 12 is driven to vibrate by the vibration motor 13, so as to screen the waste particles, and the particles of qualified size fall onto the lower transmission belt 10 through the screening holes on the sieve plate 12, and the particles of larger size enter the auger 5 through the discharge port 4 on the right, and are transported back to the crushing box 1 through the auger 5 for re-crushing, so as to ensure that the diameters of the particles falling on the transmission belt 10 are relatively consistent. , and then the waste particles are transported to the right through the transmission belt 10, and then the power is output through the second motor 15, and the transmission rod 16 is driven to rotate through the second motor 15, and the transmission frame 17 is driven to move left and right through the transmission rod 16, so that the first rack 18 is driven to move synchronously through the transmission frame 17, and then the first rack 18 drives the first pressing plate 19 to move, and at the same time, the first rack 18 drives the transmission gear 20 to rotate, and the transmission gear 20 drives the second rack 21 and the second pressing plate 22 to move, and the reciprocating movement of the first pressing plate 19 and the second pressing plate 22 flattens the waste particles transported by the transmission belt 10 to ensure that the laying thickness of the waste particles is consistent, and then the waste is screened by the electrostatic suction of different degrees of multiple sorters 27.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrostatic separation device for a waste circuit board recycling production line, comprising a crushing box (1), characterized in that: The bottom end of the crushing box (1) is fixedly connected to a lower hopper (2), the bottom end of the lower hopper (2) is fixedly connected to a screening box (3), the left side of the screening box (3) is fixedly connected to a discharge port (4), the left end of the discharge port (4) is fixedly connected to an auger (5), the right side of the crushing box (1) is fixedly connected to a first support frame (7), the right side of the first support frame (7) is fixedly connected to a first motor (6), the output end of the first motor (6) is fixedly connected to a gear set (8), the left side of the gear set (8) is fixedly connected to a gear rod (9), the inner bottom end of the screening box (3) is fixedly connected to a uniformly distributed spring (11), the top end of the spring (11) is fixedly connected to a screen plate (12), and the middle bottom side of the screen plate (12) is fixedly connected to a vibration motor (13).

2. The electrostatic separation device for a waste circuit board recycling production line according to claim 1 is characterized in that: The bottom end of the screening box (3) is fixedly connected to a transmission belt (10), and the top side of the middle end of the transmission belt (10) is fixedly connected to a second support frame (14).

3. The electrostatic separation device for a waste circuit board recycling production line according to claim 2 is characterized in that: A second motor (15) is fixedly connected to the bottom side of the middle end of the second support frame (14), and a transmission rod (16) is fixedly connected to the output end of the second motor (15).

4. The electrostatic separation device for a waste circuit board recycling production line according to claim 3 is characterized in that: The outer side of the bottom end of the transmission rod (16) is slidably connected to a transmission frame (17), and the rear end of the transmission frame (17) is fixedly connected to a first rack (18).

5. The electrostatic separation device for a waste circuit board recycling production line according to claim 4, characterized in that: The bottom end of the first rack (18) is fixedly connected to a first pressing plate (19), the rear end of the first rack (18) is slidably connected to a second limiting frame (24), and the second limiting frame (24) is fixedly connected to the second supporting frame (14).

6. The electrostatic separation device for a waste circuit board recycling production line according to claim 4, characterized in that: The front end of the first rack (18) is meshingly connected with a transmission tooth (20), and the bottom end of the transmission tooth (20) is rotatably connected with a bottom plate (26).

7. The electrostatic separation device for a waste circuit board recycling production line according to claim 6, characterized in that: The outer side of the top end of the bottom plate (26) is fixedly connected to a third limiting frame (25) opposite to the left and right, and the third limiting frame (25) is fixedly connected to the second supporting frame (14).

8. The electrostatic separation device for a waste circuit board recycling production line according to claim 6, characterized in that: The front end of the transmission tooth (20) is meshingly connected with a second rack (21), and the bottom end of the second rack (21) is fixedly connected with a second pressing plate (22).

9. The electrostatic separation device for a waste circuit board recycling production line according to claim 8, characterized in that: The front end of the second rack (21) is slidably connected to a first limiting frame (23), and the first limiting frame (23) is fixedly connected to the second supporting frame (14).

10. The electrostatic separation device for a waste circuit board recycling production line according to claim 2, characterized in that: The top end of the right side of the transmission belt (10) is fixedly connected with left and right opposite sorters (27).

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