Multistage magnetic separation device for waste activated carbon

Abstract

The utility model relates to multistage magnetic separation device technical field discloses a multistage magnetic separation device for waste activated carbon, including support frame no.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-stage magnetic separation devices, and in particular to a multi-stage magnetic separation device for waste activated carbon. Background Technology

[0002] Waste activated carbon refers to activated carbon that has lost its adsorption capacity after use in industrial production, environmental protection and other fields. It is often mixed with ferromagnetic impurities, non-ferrous metals and other pollutants. In order to realize the resource recycling of waste activated carbon, it is necessary to remove the impurities to restore its use value, while reducing solid waste pollution and reducing resource waste. Therefore, a multi-stage magnetic separation device for waste activated carbon is needed.

[0003] The multi-stage magnetic separation device for waste activated carbon is a device specifically designed to separate various impurities mixed in waste activated carbon through a multi-stage magnetic separation process. However, previous separation devices often suffered from improper feeding methods, leading to material agglomeration and uneven feeding. This not only easily clogged subsequent magnetic separation components but also resulted in insufficient contact between impurities and activated carbon in the magnetic field, causing incomplete separation, low purity, and affecting separation efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-stage magnetic separation device for waste activated carbon, which aims to improve the problems of material agglomeration and uneven feeding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage magnetic separation device for waste activated carbon, comprising a support frame one, a support frame three fixedly connected to the support frame one, a magnetic separator box and a support frame two fixedly connected to the upper surface of the support frame three, a buffer assembly inside the support frame two, a sliding frame fixedly connected to the top of the buffer assembly, a motor fixedly connected to the outer wall of the sliding frame, an eccentric block fixedly installed at the output end of the motor, and a feed valve, a dustproof system interface one, a dustproof system interface two, a protective cover and a discharge pipe one fixedly connected through the interior of the magnetic separator box, with the outer wall of the discharge pipe one fixedly connected through the interior of the support frame one.

[0006] Preferably, the buffer assembly includes a fixed column, the outer wall of which is slidably connected through the interior of the second support frame, the top end of which is fixedly connected to the lower surface of the slide frame, and a spring is provided on the outer wall of the fixed column, one end of which is fixedly connected to the upper surface of the second support frame and the other end of which is fixedly connected to the lower surface of the slide frame.

[0007] Preferably, a motor is fixedly connected to the outer wall of the magnetic separator, and a connecting shaft is fixedly connected to the output end of the motor. The outer wall of the connecting shaft is slidably connected through the magnetic separator and the support frame.

[0008] Preferably, a cylinder is fixedly connected to the outer wall of the connecting shaft, a Z-shaped column is rotatably connected through the inside of the cylinder, the outer wall of the Z-shaped column is fixedly connected to the outer wall of the support frame, a permanent magnet is fixedly connected to the outer wall of the Z-shaped column, and a protective box is fixedly connected to the lower surface of the magnetic separator.

[0009] Preferably, a connecting pipe is fixedly connected to the upper surface of the protective box, a dust collection trough is fixedly connected to the lower surface of the protective box, the lower surface of the dust collection trough is fixedly connected to the upper surface of the support frame, a motor is fixedly connected to the outer wall of the protective box, a connecting shaft is fixedly connected to the output end of the motor, the outer wall of the connecting shaft is rotatably connected through the interior of the protective box, a drive wheel is fixedly connected to the outer wall of the connecting shaft, a belt is provided on the outer wall of the drive wheel, and a driven wheel is provided on the outer wall of the belt.

[0010] Preferably, a second motor is fixedly connected to the outer wall of the protective box, and a second connecting shaft is fixedly provided at the output end of the second motor. The outer wall of the second connecting shaft is fixedly connected through the interior of the protective box and the driven wheel. A non-metallic outer cylinder is fixedly connected to the outer wall of the second connecting shaft. A connecting column is rotatably connected through the interior of the non-metallic outer cylinder. The outer wall of the connecting column is rotatably connected through the interior of the driven wheel. The outer wall of the connecting column is fixedly connected to the inner wall of the protective box. A second permanent magnet is fixedly connected to the outer wall of the connecting column.

[0011] Preferably, the inside of the support frame one is fixedly connected to the discharge pipe two, the discharge pipe three, and the dust collection discharge pipe. The outer wall of the discharge pipe two is fixedly connected to the inside of the dust collection trough and the protective box. The outer wall of the discharge pipe three is fixedly connected to the inside of the dust collection trough and the protective box. The outer wall of the dust collection discharge pipe is fixedly connected to the inside of the dust collection trough. The outer wall of the dust collection trough is fixedly connected to the dustproof box.

[0012] Preferably, the interior of the dustproof box is fixedly connected to a dustproof system interface three, and the interior of the dustproof box is fixedly connected to the outer wall of the protective box and the connecting pipe.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the mixed material is poured into the slide frame through the feed valve, and then the motor is started. The motor drives the eccentric block to rotate eccentrically, and the resulting vibration force acts on the slide frame, making the slide frame vibrate continuously and stably. This can fully disperse the material and prevent agglomeration. Because the slide frame has an inclined angle, the material will slowly slide down along the inclined direction under its own gravity during vibration, gradually entering the subsequent stages. At the same time, the spring under the slide frame will undergo elastic deformation during vibration, absorbing part of the vibration force and playing a buffering role, reducing the impact on other parts of the device, ensuring stable and orderly feeding, achieving the effect of dispersing the material and uniform feeding, and improving the efficiency of magnetic separation.

[0015] 2. In this invention, motor one drives connecting shaft one to rotate with the cylinder. The Z-shaped column and permanent magnet one are fixed to generate a static magnetic field. When the mixed material passes through the cylinder, ferromagnetic impurities are adsorbed and then fall off and are discharged as the cylinder rotates to the non-magnetic field area; activated carbon falls into the protective box, thus achieving the separation of ferromagnetic and non-ferromagnetic materials. Simultaneously, motors two and three are started. Motor three drives the drive wheel, belt, and driven wheel to transport materials, while motor two drives the non-metallic outer cylinder to rotate. Permanent magnet two is fixed to generate a changing magnetic field. Non-ferrous metals are separated and discharged by Lorentz force, and activated carbon is discharged via belt. This achieves the effect of multi-stage magnetic separation, obtaining high-purity activated carbon and meeting the quality requirements of high-end applications. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a multi-stage magnetic separation device for waste activated carbon proposed in this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the magnetic separator box of a multi-stage magnetic separation device for waste activated carbon proposed in this utility model.

[0018] Figure 3 This is a partial structural schematic diagram of the spring in a multi-stage magnetic separation device for waste activated carbon proposed in this utility model.

[0019] Figure 4 This is a partial structural schematic diagram of a protective cover for a multi-stage magnetic separation device for waste activated carbon proposed in this utility model.

[0020] Figure 5 This is a partial structural schematic diagram of the protective box of a multi-stage magnetic separation device for waste activated carbon proposed in this utility model;

[0021] Figure 6 This is a partial structural schematic diagram of the dustproof box of a multi-stage magnetic separation device for waste activated carbon proposed in this utility model.

[0022] Figure 7 This is a partial structural schematic diagram of the driven wheel of a multi-stage magnetic separation device for waste activated carbon proposed in this utility model.

[0023] Legend:

[0024] 1. Support frame one; 2. Magnetic separator box; 3. Support frame two; 4. Fixed column; 5. Spring; 6. Sliding frame; 7. Motor; 8. Eccentric block; 9. Feed valve; 10. Dustproof system interface one; 11. Dustproof system interface two; 12. Motor one; 13. Connecting shaft one; 14. Cylinder; 15. Z-shaped column; 16. Permanent magnet one; 17. Protective cover; 18. Support frame three; 19. Discharge pipe one; 2 0. Dust collection trough; 21. Protective box; 22. Connecting pipe; 23. Dustproof box; 24. Discharge pipe II; 25. Discharge pipe III; 26. Dust collection and discharge pipe; 27. Dustproof system interface III; 28. Motor II; 29. ​​Connecting shaft II; 30. Non-metallic outer cylinder; 31. Connecting column; 32. Permanent magnet II; 33. Motor III; 34. Connecting shaft III; 35. Drive wheel; 36. Belt; 37. Driven wheel. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of this utility model provides a multi-stage magnetic separation device for waste activated carbon, including a support frame 1, a support frame 3 18 fixedly connected to the support frame 1, a magnetic separator 2 and a support frame 2 3 fixedly connected to the upper surface of the support frame 3 18, a buffer assembly inside the support frame 2 3, a sliding frame 6 fixedly connected to the top of the buffer assembly, a motor 7 fixedly connected to the outer wall of the sliding frame 6, an eccentric block 8 fixedly provided at the output end of the motor 7, and a feed valve 9, a dustproof system interface 10, a dustproof system interface 2 11, a protective cover 17 and a discharge pipe 19 fixedly connected through the inside of the magnetic separator 2, with the outer wall of the discharge pipe 19 fixedly connected through the inside of the support frame 1.

[0027] Specifically, support frame 1 serves to support support frame 3 18 and discharge pipe 19, providing bottom support for the entire device and ensuring stable assembly of all components, thus guaranteeing the overall structural stability of the device. Support frame 3 18 connects support frame 1 with magnetic separator 2 and support frame 2 3, establishing an installation framework for all components and maintaining the stable position of magnetic separator 2 and support frame 2 3. Magnetic separator 2 accommodates materials for magnetic separation, providing an installation foundation for feeding, dust prevention, and discharging components, forming a closed magnetic separation space to achieve material separation. Support frame 2 3 houses the buffer assembly, providing sliding support for the fixed column 4, ensuring stable operation of the buffer assembly and supporting the sliding frame 6. Eccentric block 8 causes the sliding frame 6 to vibrate. Driven by motor 7, it rotates eccentrically, generating centrifugal force to cause the sliding frame 6 to vibrate, achieving the desired effect. The vibrating feeding effect of the sliding frame 6 is achieved by controlling the material entering the sliding frame 6 through the feed valve 9, adjusting the feed rate and speed to control the feeding rhythm. The dustproof system interface 10 and the dustproof system interface 21 connect to the dustproof system, allowing the dustproof system to be connected to the magnetic separator 2, thus collecting the dust generated during the magnetic separation process. The protective cover 17 provides protection, covering the internal operating parts of the device to prevent dust from overflowing and ensure operational safety. The discharge pipe 19 discharges the magnetically separated material, leading the separated material out of the magnetic separator 2, thus completing the material output. The dustproof system components, including the connecting pipe 22, dustproof box 23, protective box 21, dust collection trough 20, and dust collection discharge pipe 26, collect and discharge dust, centrally treating the dust generated during the operation of the device, thereby reducing dust pollution and maintaining a clean working environment.

[0028] Reference Figure 2 and Figure 3 The buffer assembly includes a fixed column 4, the outer wall of which is slidably connected to the inside of the support frame 2 3, the top of which is fixedly connected to the lower surface of the slide frame 6, and a spring 5 is provided on the outer wall of the fixed column 4. One end of the spring 5 is fixedly connected to the upper surface of the support frame 2 3, and the other end is fixedly connected to the lower surface of the slide frame 6.

[0029] Specifically, the fixed column 4 in the buffer assembly connects the sliding frame 6 and the support frame 3, and slides with the vibration of the sliding frame 6, limiting the movement direction of the sliding frame 6 and ensuring the smooth vibration of the sliding frame 6. The spring 5 buffers the vibration of the sliding frame 6, extending and retracting when the sliding frame 6 vibrates, absorbing part of the vibration force and reducing the impact of vibration on other components of the device. The sliding frame 6 carries the material and realizes vibratory feeding. Driven by the motor 7, it vibrates and, with the tilt angle, allows the material to slide down, achieving the effect of uniform material conveying. The motor 7 drives the eccentric block 8 to rotate eccentrically, converting electrical energy into mechanical energy to provide power for the vibration of the sliding frame 6, thus achieving the effect of driving the vibration of the sliding frame 6.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A motor 12 is fixedly connected to the outer wall of the magnetic separator 2. A connecting shaft 13 is fixedly connected to the output end of the motor 12. The outer wall of the connecting shaft 13 is slidably connected through the magnetic separator 2 and the support frame 3. A cylinder 14 is fixedly connected to the outer wall of the connecting shaft 13. A Z-shaped column 15 is rotatably connected through the inside of the cylinder 14. A connecting pipe 22 is fixedly connected to the upper surface of the protective box 21 of the Z-shaped column 15. A dust collection trough 20 is fixedly connected to the lower surface of the protective box 21. The lower surface of the dust collection trough 20 is fixedly connected to the upper surface of the support frame 1. A motor 33 is fixedly connected to the outer wall of the protective box 21. A connecting shaft 34 is fixedly connected to the output end of the motor 33. The outer wall of the connecting shaft 34 is rotatably connected through the interior of the protective box 21. A drive wheel 35 is fixedly connected to the outer wall of the connecting shaft 34. A belt 36 is provided on the outer wall of the drive wheel 35. A driven wheel 37 is provided on the outer wall of the belt 36. The outer wall of the connecting shaft 13 is fixedly connected to the outer wall of the support frame 23. A permanent magnet 16 is fixedly connected to the outer wall of the Z-shaped column 15. The lower surface of the magnetic separator 2 is fixedly connected to the protective box 21.

[0031] Specifically, motor 12 drives connecting shaft 13 to rotate within magnetic separator 2 and support frame 3, converting electrical energy into mechanical energy to power the rotation of cylinder 14, thus driving the first-stage magnetic separation. Connecting shaft 13 also drives cylinder 14, transmitting power from motor 12 and ensuring stable rotation, achieving the adsorption and detachment of ferromagnetic impurities. Cylinder 14 carries the ferromagnetic impurities, adsorbing them in the static magnetic field of permanent magnet 16, and then rotating them to a non-magnetic area where they detach, achieving the separation of ferromagnetic materials from activated carbon. Z-shaped column 15 fixes permanent magnet 16, keeping it stationary to generate a stable static magnetic field, providing a magnetic field environment for ferromagnetic adsorption. Permanent magnet 16 generates a static magnetic field, adsorbing ferromagnetic impurities in the mixture, achieving the initial adsorption of ferromagnetic materials. The separation effect is achieved by using the protective cover 17 to guide the activated carbon to fall, catching the activated carbon unaffected by magnetic force and ensuring its precise fall into the protective box 21, thus ensuring the orderly conveying of materials. The motor 28 drives the connecting shaft 29 to rotate within the protective box 21 and the driven wheel 37, providing power for the rotation of the non-metallic outer cylinder 30, thus driving the secondary magnetic separation. The connecting shaft 29 also drives the rotation of the non-metallic outer cylinder 30, allowing it to interact with the fixed permanent magnet 32 ​​to generate a changing magnetic field, thus inducing eddy currents. The non-metallic outer cylinder 30 transmits the changing magnetic field, causing eddy currents to be generated inside the non-ferrous metals, thus generating Lorentz force to separate the non-ferrous metals. The connecting column 31 fixes the permanent magnet 32, keeping it stationary and ensuring stable magnetic field changes, thus achieving precise separation of non-ferrous metals.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7A motor 28 is fixedly connected to the outer wall of the protective box 21. A connecting shaft 29 is fixedly installed at the output end of the motor 28. The outer wall of the connecting shaft 29 is fixedly connected through the protective box 21 and the driven wheel 37. A non-metallic outer cylinder 30 is fixedly connected to the outer wall of the connecting shaft 29. A connecting column 31 is rotatably connected through the non-metallic outer cylinder 30. The outer wall of the connecting column 31 is rotatably connected through the driven wheel 37. The outer wall of the connecting column 31 is fixedly connected to the inner wall of the protective box 21. A permanent magnet 32 ​​is fixedly connected to the outer wall of the connecting column 31. The interior of the support frame 1 is... The system includes a second discharge pipe 24, a third discharge pipe 25, and a dust collection discharge pipe 26, all of which are fixedly connected through the system. The outer wall of the second discharge pipe 24 is fixedly connected through the dust collection trough 20 and the protective box 21. The outer wall of the third discharge pipe 25 is fixedly connected through the dust collection trough 20 and the protective box 21. The outer wall of the dust collection discharge pipe 26 is fixedly connected through the dust collection trough 20. A dustproof box 23 is fixedly connected to the outer wall of the dust collection trough 20. A dustproof system interface 27 is fixedly connected through the dustproof box 23. The interior of the dustproof box 23 is fixedly connected to the outer wall of the protective box 21 and the connecting pipe 22.

[0033] Specifically, motor 33 drives connecting shaft 34 to rotate within protective box 21, providing power for drive wheel 35 to rotate, thus achieving the conveying effect of drive belt 36. Connecting shaft 34 drives drive wheel 35 to rotate, transmitting power from motor 33, allowing drive wheel 35 to drive belt 36, achieving material conveying. Drive wheel 35, belt 36, and driven wheel 37 move materials, conveying activated carbon and non-ferrous metals to their respective separation areas, ensuring continuous multi-stage sorting. Discharge pipe 19, discharge pipe 24, and discharge pipe 25 respectively discharge ferromagnetic impurities, non-ferrous metals, and pure activated carbon, allowing different materials to be output separately, achieving precise collection of materials after multi-stage separation. The magnetic poles of permanent magnet 16 are arranged with large pitch, same polarity, or single polarity to form a strong and deep adsorption magnetic field. The magnetic poles of permanent magnet 22 are arranged in a close alternating NNSNS pattern, generating a high-speed alternating magnetic field through the high-speed rotation of non-metallic outer cylinder 30.

[0034] Working principle: When the device is needed, first connect the dustproof system to the device through dustproof system interface 10, dustproof system interface 21 and dustproof system interface 327 and start it. Place the mixed material in the slide frame 6 through the feed valve 9, start the motor 7, and the motor 7 drives the eccentric block 8 to rotate eccentrically, thereby vibrating the slide frame 6 and achieving the effect of uniform feeding. Since the slide frame 6 has an inclined angle, the material slides down under its own weight during the vibration process, and the elasticity of the spring 5 plays a buffering role.

[0035] Simultaneously, motor 12 is started, driving connecting shaft 13 to rotate inside magnetic separator 2 and support frame 3. Connecting shaft 13 drives cylinder 14 to rotate, while Z-shaped column 15 and permanent magnet 16 remain stationary. Permanent magnet 16 generates a static magnetic field. When the mixture passes through cylinder 14, ferromagnetic impurities are instantly attracted and rotate with cylinder 14 until they are carried to the area below cylinder 14 where there is no magnetic field and automatically fall off, exiting through discharge pipe 19. Activated carbon, unaffected by magnetic force, falls into protective cover 17 due to inertia, and then into protective box 21, thus achieving efficient and continuous separation of ferromagnetic and non-ferromagnetic materials. Simultaneously, motors 28 and 33 are started, driving discharge pipe 24 to rotate, which in turn drives drive wheel 35 to rotate. Driven by belt 36, drive driven wheel 37 to rotate, thus conveying the material. Motor 28 drives connecting shaft 29 in protective box 21. The driven wheel 37 rotates inside the dust collection trough 20, driving the non-metallic outer cylinder 30 to rotate. The connecting column 31 and the permanent magnet 32 ​​remain stationary. When conductive non-ferrous metals such as aluminum and copper pass through the non-metallic outer cylinder 30 with the belt 36, the rapidly changing magnetic field induces eddy currents inside the metal, thereby generating a Lorentz force that repels the original magnetic field, ejecting the metal particles from the material flow. These metal particles are ejected into the discharge pipe 24 and discharged. Activated carbon is conveyed by the belt 36 and falls into the discharge pipe 25 for discharge, achieving precise separation of non-ferrous metals and activated carbon, thus playing the role of multi-stage magnetic separation. This achieves the effect of obtaining activated carbon with extremely high purity, meeting the quality requirements of high-end applications. During the entire operation of the device, the dust generated in the magnetic separator 2 can be transferred to the dustproof box 23 through the connecting pipe 22 via the dustproof system. The dust generated in the dustproof box 23 and the protective box 21 will then be transferred to the dust collection trough 20 and finally discharged through the dust collection discharge pipe 26.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage magnetic separation device for waste activated carbon, comprising a support frame (1), characterized in that: The support frame one (1) is fixedly connected to the support frame three (18). The upper surface of the support frame three (18) is fixedly connected to the magnetic separator box (2) and the support frame two (3). The support frame two (3) is provided with a buffer assembly inside. The top of the buffer assembly is fixedly connected to the sliding frame (6). The outer wall of the sliding frame (6) is fixedly connected to the motor (7). The output end of the motor (7) is fixedly provided with an eccentric block (8). The magnetic separator box (2) is fixedly connected to the feed valve (9), the dustproof system interface one (10), the dustproof system interface two (11), the protective cover (17), and the discharge pipe one (19). The outer wall of the discharge pipe one (19) is fixedly connected to the inside of the support frame one (1).

2. The multi-stage magnetic separation device for waste activated carbon according to claim 1, characterized in that: The buffer assembly includes a fixed column (4), the outer wall of which is slidably connected through the inside of the support frame (3), the top end of which is fixedly connected to the lower surface of the slide frame (6), and a spring (5) is provided on the outer wall of the fixed column (4). One end of the spring (5) is fixedly connected to the upper surface of the support frame (3), and the other end is fixedly connected to the lower surface of the slide frame (6).

3. The multi-stage magnetic separation device for waste activated carbon according to claim 1, characterized in that: The outer wall of the magnetic separator (2) is fixedly connected to a motor (12), and the output end of the motor (12) is fixedly connected to a connecting shaft (13). The outer wall of the connecting shaft (13) is slidably connected through the magnetic separator (2) and the support frame (3).

4. The multi-stage magnetic separation device for waste activated carbon according to claim 3, characterized in that: A cylinder (14) is fixedly connected to the outer wall of the connecting shaft (13). A Z-shaped column (15) is rotatably connected through the inside of the cylinder (14). The outer wall of the Z-shaped column (15) is fixedly connected to the outer wall of the support frame (3). A permanent magnet (16) is fixedly connected to the outer wall of the Z-shaped column (15). A protective box (21) is fixedly connected to the lower surface of the magnetic separator (2).

5. A multi-stage magnetic separation device for waste activated carbon according to claim 4, characterized in that: The upper surface of the protective box (21) is fixedly connected to a connecting pipe (22), the lower surface of the protective box (21) is fixedly connected to a dust collection trough (20), the lower surface of the dust collection trough (20) is fixedly connected to the upper surface of the support frame (1), the outer wall of the protective box (21) is fixedly connected to a motor (33), the output end of the motor (33) is fixedly connected to a connecting shaft (34), the outer wall of the connecting shaft (34) is rotatably connected through the interior of the protective box (21), the outer wall of the connecting shaft (34) is fixedly connected to a drive wheel (35), the outer wall of the drive wheel (35) is provided with a belt (36), and the outer wall of the belt (36) is provided with a driven wheel (37).

6. A multi-stage magnetic separation device for waste activated carbon according to claim 4, characterized in that: The outer wall of the protective box (21) is fixedly connected to a motor (28). The output end of the motor (28) is fixedly provided with a connecting shaft (29). The outer wall of the connecting shaft (29) is fixedly connected through the interior of the protective box (21) and the driven wheel (37). The outer wall of the connecting shaft (29) is fixedly connected to a non-metallic outer cylinder (30). The interior of the non-metallic outer cylinder (30) is rotatably connected to a connecting column (31). The outer wall of the connecting column (31) is rotatably connected through the interior of the driven wheel (37). The outer wall of the connecting column (31) is fixedly connected to the inner wall of the protective box (21). The outer wall of the connecting column (31) is fixedly connected to a permanent magnet (32).

7. The multi-stage magnetic separation device for waste activated carbon according to claim 1, characterized in that: The support frame 1 (1) is internally connected to the discharge pipe 2 (24), the discharge pipe 3 (25) and the dust collection discharge pipe (26). The outer wall of the discharge pipe 2 (24) is internally connected to the dust collection trough (20) and the protective box (21). The outer wall of the discharge pipe 3 (25) is internally connected to the dust collection trough (20) and the protective box (21). The outer wall of the dust collection discharge pipe (26) is internally connected to the dust collection trough (20). The outer wall of the dust collection trough (20) is fixedly connected to the dustproof box (23).

8. A multi-stage magnetic separation device for waste activated carbon according to claim 7, characterized in that: The dustproof box (23) has a dustproof system interface three (27) that is fixedly connected through the inside. The inside of the dustproof box (23) is fixedly connected to the outer wall of the protective box (21) and the connecting pipe (22).

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