Dust removal device for neodymium-iron-boron magnet production

Abstract

The utility model discloses a dust removal device for neodymium iron boron magnet production, which comprises a treatment bin, a dust removal device is arranged in the treatment bin, the dust removal device comprises a communication bin, nozzles and a water inlet pipe, the plurality of nozzles are arranged at the bottom end of the communication bin, one end of the water inlet pipe is connected with the communication bin, and the other end of the water inlet pipe is connected with a control device. The control device comprises a control sleeve, a connecting pipe, a rotating shaft, a control groove, a control shaft and a control panel, one end of the control panel is connected with the control sleeve through the rotating shaft, the control shaft on the other side of the control panel is installed in the control groove, and a reinforcing mechanism is arranged on the outer side of the water inlet pipe and comprises a rotating groove, a rotating plate, a top spring, a supporting plate, a sliding sleeve, a clamping plate and a thrust bearing. According to the magnetic powder separation and collection device, the problems that the separation and collection efficiency of magnets and powder is low, the regulation and control flexibility of the water flow speed is insufficient, and the stability of a speed regulation structure is poor are solved.

Description

A dust removal device for the production of neodymium iron boron magnets Technical Field

[0001] This utility model relates to the field of dust removal technology for neodymium iron boron magnets, and more specifically, it relates to a dust removal device for the production of neodymium iron boron magnets. Background Technology

[0002] In the context of the rapid development of neodymium iron boron permanent magnet materials in contemporary industry, as the leading product in the field of rare earth permanent magnet materials, neodymium iron boron magnets inevitably generate a large amount of dust containing magnetic particles during the production process. This dust not only threatens the health of workers, but also causes raw material loss and environmental pollution. Existing dust removal devices face severe challenges in several key technical aspects.

[0003] First, the dust removal devices used in existing NdFeB magnet production workshops generally suffer from a fundamental flaw: low efficiency in separating and collecting magnets from powder. Conventional mechanical separation devices struggle to handle the strong magnetic properties of NdFeB dust, causing dust to frequently adhere to the surface of the separation device and reducing separation efficiency. Traditional dust removal devices typically collect magnet fragments mixed with NdFeB powder, lacking an effective graded separation mechanism. This makes it impossible to distinguish larger, recyclable magnet fragments from fine powder, resulting in the waste of valuable rare earth materials and increasing the complexity and cost of subsequent recycling. Most companies still rely on manual secondary sorting, which is not only inefficient but also poses significant health risks to operators due to prolonged exposure to dust. This not only leads to the loss of recyclable materials but also affects the performance of recycled products due to unstable quality of recycled materials, while increasing the environmental burden and production costs for enterprises.

[0004] Secondly, regarding the fine dust generated during NdFeB processing, some companies use water curtain dust removal technology, which uses multiple nozzles to form a water curtain to capture airborne dust particles. However, existing water curtain dust removal systems have significant technical bottlenecks in water flow rate control: most traditional water curtain dust removal devices cannot adjust the water delivery speed and spray intensity in a timely manner according to changes in dust concentration, particle size distribution, and generation rate under different operating conditions. When processing NdFeB products of different specifications and materials, the characteristics of the generated dust (such as particle size, density, and magnetic strength) are different, requiring corresponding adjustments to the water flow parameters to achieve the best capture effect. This technical defect of not being able to flexibly adapt and adjust directly leads to problems such as low dust removal efficiency, water waste, or insufficient dust removal water volume. It also affects the stability of subsequent wastewater treatment and the effect of separation and recovery, bringing significant economic and environmental burdens to enterprises.

[0005] Furthermore, while some improved dust removal devices have indeed emerged on the market to address the aforementioned water flow velocity control issues, these devices exhibit serious structural instability problems during actual operation. They are prone to loosening and displacement under long-term impact from high-pressure water flow. The continuous vibration generated by NdFeB processing equipment (such as cutting machines and grinding machines) during operation is transmitted to the dust removal system through pipes and supports, causing slight displacement and parameter drift of precision speed-regulating components. In particular, during start-up and shutdown, the instantaneous pressure fluctuations and water hammer effect of the water flow impact the speed-regulating device, gradually reducing its positioning accuracy and adjustment reliability. This fundamental defect of the speed-regulating structure, which is susceptible to internal water flow impact and equipment vibration, leads to problems such as unstable flow velocity, uneven spraying, and fluctuating dust removal efficiency during long-term operation. This not only reduces the dust capture rate and collection quality but also interferes with subsequent separation and recovery due to unstable water flow. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a dust removal device for the production of neodymium iron boron magnets, so as to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for the production of neodymium iron boron magnets, comprising a processing chamber, in which a dust removal device is installed. The dust removal device includes a connecting chamber, nozzles, and a water inlet pipe. Multiple nozzles are fixedly installed at the bottom of the connecting chamber, which is detachably installed within the processing chamber. One end of the water inlet pipe is connected to the top of the connecting chamber, and the other end is connected to a control device. The control device includes a control sleeve, a connecting pipe, a rotating shaft, a control groove, a control shaft, and a control plate. Both ends of the control sleeve are connected to the connecting pipe and the water inlet pipe, respectively. One end of the control board is rotatably connected to the control sleeve via a rotating shaft. The control shaft on the other side of the control board is slidably installed in the control groove, which is located on one side of the connecting pipe. A reinforcement mechanism is provided on the outside of the water inlet pipe. The reinforcement mechanism includes a rotating groove, a rotating plate, a top spring, a support plate, a sliding sleeve, a clamping plate, and a thrust bearing. The rotating groove is located on the rotating plate. The top spring is connected at both ends to the thrust bearing and the sliding sleeve, respectively. The rotating plate is rotatably installed on the outside of the water inlet pipe. The support plate is fixedly installed on one side of the sliding sleeve. The clamping plate is fixedly installed on the inside of the support plate. The thrust bearing is detachably installed on one side of the rotating plate.

[0010] The present invention is further configured such that an input pipe is connected to one end of the processing chamber, and a collection chamber is fixedly provided on the other side of the processing chamber.

[0011] The present invention is further configured such that a recycling bin is fixedly connected to the bottom end of the processing bin, and a movable bin is detachably provided in the recycling bin.

[0012] The present invention is further configured such that a detachable retrieval frame is provided on the collection chamber, and a strong magnet is provided at the bottom of the retrieval frame to realize the collection of neodymium iron boron powder.

[0013] The present invention is further configured such that an exhaust pipe is connected to the top of the collection chamber to ensure stable gas discharge.

[0014] The present invention is further configured such that the control board has a plurality of control holes.

[0015] The present invention is further configured such that the control sleeve sidewall is provided with a plurality of locking rods, the water inlet pipe is provided with a plurality of locking grooves on the outside, and the inner end of the locking rod is inserted into the locking groove to achieve precise locking.

[0016] The present invention is further configured such that the outer wall of the control sleeve is provided with a movable spring, and the outer end of the locking rod is movably connected to the outer wall of the control sleeve through the movable spring to ensure the stable use of the locking rod.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a dust removal device for the production of neodymium iron boron magnets, which has the following beneficial effects:

[0019] 1. The dust removal device effectively solves the multiple challenges of existing dust removal technologies in the production process of NdFeB magnets through innovative structural design. The device adopts a combined structure of a connecting chamber, nozzles, and a water inlet pipe to form a highly efficient water curtain dust removal system. Multiple nozzles are fixedly installed at the bottom of the connecting chamber, forming a uniform water curtain coverage that effectively captures airborne dust particles. In particular, through the coordinated operation of the treatment chamber, input pipe, collection chamber, and recovery chamber, precise separation of NdFeB dust and ordinary dust is achieved: ordinary dust mixes with the water curtain and settles into the movable chamber in the recovery chamber, forming wastewater that is collected, while NdFeB dust passes through the water curtain into the collection chamber and is adsorbed and fixed by strong magnets. This separation is based on differences in physical properties. The separation mechanism solves the fundamental defect of traditional dust removal devices that cannot distinguish between magnetic materials and ordinary dust, improves the recycling rate of rare earth magnetic materials, and reduces raw material loss. At the same time, the detachable design of the pick-up rack and strong magnets allows operators to periodically remove the adsorbed NdFeB dust particles for reuse. The exhaust pipe ensures that clean air is discharged smoothly, improving the overall dust removal efficiency. This structure not only achieves efficient separation and collection of NdFeB magnets and powder, reducing the waste of valuable rare earth materials and lowering the environmental protection burden and production costs of enterprises, but also significantly improves production efficiency and reduces health risks to operators through automated separation processes.

[0020] 2. The control device, through the precise coordination of the control sleeve, connecting pipe, rotating shaft, control groove, control shaft, and control board, innovatively solves the technical bottleneck of existing water curtain dust removal systems in terms of water flow speed regulation. The positional changes of multiple control holes on the control board and the positional changes of the control board itself enable precise adjustment of the flow area within the connecting pipe, achieving the purpose of flexibly changing the water flow speed. It can adjust the water delivery speed and spray intensity in a timely manner according to changes in dust concentration, particle size distribution, and generation rate under different working conditions. This flexible speed regulation mechanism allows the dust removal system to adapt to the different dust characteristics (such as particle size, density, and magnetic strength) generated when processing NdFeB products of different specifications and materials, providing the optimal water flow parameter configuration for each working condition. It effectively solves the problem of inflexible flow speed regulation in traditional water curtain dust removal devices, improves dust removal efficiency, avoids water waste or insufficient dust removal, and brings significant economic and environmental benefits to enterprises.

[0021] 3. The reinforcement mechanism, through an innovative combination of rotating groove, rotating plate, top spring, support plate, sliding sleeve, clamping plate, and thrust bearing, solves the problem of insufficient structural stability in the improved dust removal device during long-term operation. After the flow rate is adjusted, the operator precisely rotates the rotating plate, causing the thrust bearing and rotating groove to rotate to a specific position. This allows the top spring to push the sliding sleeve back to its original position, and the support plate moves the clamping plate to the ideal position. When the rotating plate rotates again and the rotating groove and clamping plate no longer align, the support plate and clamping plate together provide limiting support for the sliding sleeve, while the inner wall of the sliding sleeve reliably limits the outer end of the clamping rod, creating a locking fit between the clamping rod and the clamping groove. This effectively prevents the control sleeve from accidentally rotating under the influence of external vibration. This multi-locking mechanism forms a highly reliable anti-loosening protection system that effectively resists continuous vibrations generated by NdFeB processing equipment, long-term impacts from high-pressure water flow, and instantaneous pressure fluctuations and water hammer effects during start-up and shutdown. The innovative design of the reinforcement mechanism ensures that the adjusted flow rate remains stable during long-term operation, avoiding minute displacements and parameter drifts in precision speed-regulating components. It solves the fundamental defect of traditional speed-regulating structures being susceptible to interference, ensuring the long-term stable operation of the dust removal system, eliminating problems such as unstable flow rate, uneven spraying, and fluctuating dust removal efficiency, significantly improving dust capture rate and collection quality, and providing reliable dust removal protection for NdFeB magnet production. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of a dust removal device for the production of neodymium iron boron magnets according to this utility model;

[0023] Figure 2 is a cross-sectional structural diagram of this utility model;

[0024] Figure 3 is a structural schematic diagram of the control device and reinforcement mechanism in this utility model;

[0025] Figure 4 is a cross-sectional structural diagram of the control device and reinforcement mechanism in this utility model;

[0026] Figure 5 is a structural schematic diagram of the water inlet pipe and the rotating plate in this utility model.

[0027] In the diagram: 1. Processing chamber; 2. Connecting chamber; 3. Nozzle; 4. Inlet pipe; 5. Control sleeve; 6. Connecting pipe; 7. Rotating shaft; 8. Control groove; 9. Control shaft; 10. Control plate; 11. Rotating groove; 12. Rotating plate; 13. Top spring; 14. Support plate; 15. Sliding sleeve; 16. Clamping plate; 17. Thrust bearing; 18. Input pipe; 19. Collection chamber; 20. Recycling chamber; 21. Movable chamber; 22. Retrieval rack; 23. Strong magnet; 24. Exhaust pipe; 25. Control hole; 26. Clamping rod; 27. Clamping groove; 28. Movable spring. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please refer to Figures 1-5. A dust removal device for the production of NdFeB magnets includes a processing chamber 1, in which a dust removal device is installed. The dust removal device includes a connecting chamber 2, nozzles 3, and a water inlet pipe 4. Multiple nozzles 3 are fixedly installed at the bottom of the connecting chamber 2, which is detachably installed in the processing chamber 1. One end of the water inlet pipe 4 is connected to the top of the connecting chamber 2, and the other end is connected to a control device. The control device includes a control sleeve 5, a connecting pipe 6, a rotating shaft 7, a control groove 8, a control shaft 9, and a control plate 10. Both ends of the control sleeve 5 are connected to the connecting pipe 6 and the water inlet pipe 4, respectively. One end of the control plate 10 is connected to the control sleeve 5 via the rotating shaft 7. A rotating connection is made, and the control shaft 9 on the other side of the control plate 10 is slidably installed in the control groove 8. The control groove 8 is opened on one side of the connecting pipe 6. A reinforcement mechanism is provided on the outside of the water inlet pipe 4. The reinforcement mechanism includes a rotating groove 11, a rotating plate 12, a top spring 13, a support plate 14, a sliding sleeve 15, a clamping plate 16, and a thrust bearing 17. The rotating groove 11 is opened on the rotating plate 12. The two ends of the top spring 13 are respectively connected to the thrust bearing 17 and the sliding sleeve 15. The rotating plate 12 is rotatably installed on the outside of the water inlet pipe 4. The support plate 14 is fixedly installed on one side of the sliding sleeve 15. The clamping plate 16 is fixedly installed on the inside of the support plate 14. The thrust bearing 17 is detachably installed on one side of the rotating plate 12.

[0032] One end of the processing chamber 1 is connected to an input pipe 18, and the other side of the processing chamber 1 is fixedly provided with a collection chamber 19.

[0033] The bottom of the processing chamber 1 is fixedly connected to a recycling chamber 20, and the recycling chamber 20 is detachably equipped with a movable chamber 21.

[0034] The collection chamber 19 is detachably equipped with a retrieval rack 22, and the bottom of the retrieval rack 22 is equipped with a strong magnet 23.

[0035] An exhaust pipe 24 is connected to the top of the collection chamber 19.

[0036] In this embodiment, when the device is needed, dust and NdFeB dust are first transported to the processing chamber 1 through the input pipe 18. Then, the external conveying device of the connecting pipe 6 is opened, allowing clean water to be transported to the water inlet pipe 4. The clean water is then transported to the connecting chamber 2 through the water inlet pipe 4, and then atomized and sprayed out through multiple nozzles 3 at the bottom of the connecting chamber 2, forming a water curtain dust removal system. Then, the dust and strong magnetic field enter the lower part of the connecting chamber 2, and the dust mixes with the water curtain and settles into the recovery chamber 20 set below. Wastewater is collected in the active chamber 21, and neodymium iron boron dust flows through the water curtain into the collection chamber 19. The neodymium iron boron dust is then adsorbed by the strong magnet 23. Finally, clean air is discharged through the exhaust pipe 24. After running for a certain period of time, the equipment is briefly stopped, and the pick-up rack 22 is removed to remove the adsorbed neodymium iron boron dust particles. Then, a new pick-up rack 22 with the strong magnet 23 is reinstalled into the collection chamber 19, and the equipment can be restarted.

[0037] Please refer to Figures 3-5 for a further embodiment of the overall device: the control board 10 has multiple control holes 25.

[0038] Multiple locking rods 26 are slidably provided on the side wall of the control sleeve 5, and multiple locking grooves 27 are provided on the outer side of the water inlet pipe 4. The inner end of the locking rod 26 is inserted into the locking groove 27.

[0039] The outer wall of the control sleeve 5 is provided with a movable spring 28, and the outer end of the locking rod 26 is movably connected to the outer wall of the control sleeve 5 through the movable spring 28.

[0040] More specifically, when the purified water delivery flow rate needs to be adjusted, firstly, rotate the rotating plate 12, causing the thrust bearing 17 mounted on one side to rotate, and causing the rotating plate 12 to rotate the rotating groove 11 to the position corresponding to the clamping plate 16. Then, push the sliding sleeve 15, causing the sliding sleeve 15 to drive the support plate 14 and the clamping plate 16 through the rotating groove 11, and causing the sliding sleeve 15 and the thrust bearing 17 to cooperate in pressing the top spring 13. When the top spring 13 is pressed to its limit, the clamping plate 16 closest to the sliding sleeve 15 just passes through the rotating groove 11 and moves to the other side of the rotating plate 12. Then, rotate the rotating plate 12 again, causing the thrust bearing 17 and the rotating groove 11 to rotate again, and causing the rotating plate 12 to rotate the rotating groove 11 to a position that does not correspond to the clamping plate 16. The corresponding position of the clamping plate 16, and then the support plate 14, in conjunction with the clamping plate 16 closest to the sliding sleeve 15, limits the sliding sleeve 15 to one side of the rotating plate 12, so that the inner wall of the sliding sleeve 15 no longer limits the outer end of the clamping rod 26. Then, the control sleeve 5 is rotated in the forward direction, so that the control sleeve 5 drives the multiple clamping rods 26 slidably set on the side wall to move. Then, the inner wall of the clamping groove 27 presses against one end of the clamping rod 26. Due to the rounded corner design at the end of the clamping rod 26 and the edge of the inner wall of the clamping groove 27, one end of the clamping rod 26 slides out of the clamping groove 27, and the other end of the clamping rod 26 drives the movable spring 28 to stretch outward. At the same time, the control sleeve 5 drives the control plate 10 to move through the rotating shaft 7, so that the other end of the control plate 10 drives the control shaft 9 along the control groove 8. Sliding outwards causes multiple control plates 10 to gradually move outwards, which in turn causes the control plates 10 to move the control holes 25. The movement of the control holes 25 and the movement of the control plates 10 changes the flow area within the connecting pipe 6, thereby altering the flow rate. Once the flow rate is properly adjusted, the control sleeve 5 is stopped from rotating, and the control spring 28 is reset, pulling the locking rod 26 inwards so that one end of the locking rod 26 is inserted into the corresponding locking groove 27. Then, the rotating plate 12 is rotated again, causing the rotating plate 12 to drive the thrust bearing 17 and the rotating groove 11 to rotate again. When the rotating groove 11 rotates to the position corresponding to the locking plate 16, the top spring 13 pushes the sliding sleeve 15 to slide back to its original position. Then, the sliding sleeve 15 passes through the support plate 1. 4. The three clamping plates 16 are slidably reset. When the top spring 13 is fully reset, the other two clamping plates 16 are moved to the sides of the rotating plate 12 respectively. Then the rotating plate 12 is rotated again, causing the thrust bearing 17 to rotate again. The rotating plate 12 drives the rotating groove 11 to a position that does not correspond to the clamping plates 16 and the support plate 14. Then the support plate 14 and the corresponding two clamping plates 16 cooperate to form a limiting support for the sliding sleeve 15, preventing the sliding sleeve 15 from sliding easily. Then the inner wall of the sliding sleeve 15 limits the outer end of the locking rod 26, so that the locking rod 26 and the locking groove 27 cooperate to limit the rotation of the control sleeve 5, preventing the structure from changing after the flow rate is adjusted, thereby ensuring the structural stability after the flow rate is adjusted and ensuring the stable use of the equipment.

[0041] In summary, during the use or operation of the overall equipment: When the equipment is needed, dust and NdFeB dust are first transported to the processing chamber 1 through the input pipe 18. Then, the external conveying device of the connecting pipe 6 is opened, allowing clean water to be transported to the water inlet pipe 4. The clean water is then transported to the connecting chamber 2 through the water inlet pipe 4. The clean water is then atomized and sprayed out through multiple nozzles 3 at the bottom of the connecting chamber 2, forming a water curtain dust removal system. The dust and strong magnetic field then enter the lower part of the connecting chamber 2, where the dust mixes with the water curtain and settles into the recovery chamber 2 located below. The wastewater is collected in the active chamber 21, and then the neodymium iron boron dust flows through the water curtain into the collection chamber 19. The neodymium iron boron dust is then adsorbed by the strong magnet 23. Finally, clean air is discharged through the exhaust pipe 24. After running for a certain period of time, the equipment is briefly stopped, and then the pick-up rack 22 is removed to remove the adsorbed neodymium iron boron dust particles. Then, a new pick-up rack 22 with the strong magnet 23 is reinstalled into the collection chamber 19, and then the equipment can be restarted.

[0042] When the purified water delivery flow rate needs to be adjusted, first rotate the rotating plate 12, causing the thrust bearing 17 mounted on one side to rotate, and causing the rotating plate 12 to rotate the rotating groove 11 to the position corresponding to the clamping plate 16. Then push the sliding sleeve 15, causing the sliding sleeve 15 to drive the support plate 14 and the clamping plate 16 through the rotating groove 11, and causing the sliding sleeve 15 and the thrust bearing 17 to cooperate in pressing the top spring 13. When the top spring 13 is pressed to its limit, the clamping plate 16 closest to the sliding sleeve 15 just passes through the rotating groove 11 and moves to the other side of the rotating plate 12. Then rotate the rotating plate 12 again, causing the thrust bearing 17 and the rotating groove 11 to rotate again, and causing the rotating plate 12 to rotate the rotating groove 11 to a position not corresponding to the clamping plate 16. At position 6, the support plate 14, in conjunction with the clamping plate 16 closest to the sliding sleeve 15, limits the sliding sleeve 15 to one side of the rotating plate 12, so that the inner wall of the sliding sleeve 15 no longer limits the outer end of the clamping rod 26. Then, the control sleeve 5 is rotated forward, causing the multiple clamping rods 26 slidably arranged on the side wall to move. Then, the inner wall of the clamping groove 27 presses against one end of the clamping rod 26. Due to the rounded corner design at the end of the clamping rod 26 and the edge of the inner wall of the clamping groove 27, one end of the clamping rod 26 slides out of the clamping groove 27, and the other end of the clamping rod 26 drives the movable spring 28 to stretch outward. At the same time, the control sleeve 5 drives the control plate 10 to move through the rotating shaft 7, so that the other end of the control plate 10 drives the control shaft 9 to move outward along the control groove 8. Lateral sliding causes multiple control plates 10 to gradually move outward, which in turn causes the control plates 10 to move the control holes 25. The movement of the control holes 25 and the movement of the control plates 10 changes the flow area within the connecting pipe 6, thereby altering the flow rate. Once the flow rate is properly adjusted, the rotation of the control sleeve 5 is stopped, and the control spring 28 is reset, pulling the locking rod 26 inward so that one end of the locking rod 26 is inserted into the corresponding locking groove 27. Then, the rotating plate 12 is rotated again, causing the rotating plate 12 to drive the thrust bearing 17 and the rotating groove 11 to rotate again. When the rotating groove 11 rotates to the position corresponding to the locking plate 16, the top spring 13 pushes the sliding sleeve 15 to slide back to its original position. Then, the sliding sleeve 15 passes through the support plate 14. The three clamping plates 16 are slidably reset. When the top spring 13 is fully reset, the other two clamping plates 16 are moved to the sides of the rotating plate 12. Then the rotating plate 12 is rotated again, causing the thrust bearing 17 to rotate. The rotating plate 12 then rotates the rotating groove 11 to a position that does not correspond to the clamping plates 16 and the support plate 14. Then the support plate 14 and the corresponding two clamping plates 16 cooperate to form a limiting support for the sliding sleeve 15, preventing the sliding sleeve 15 from sliding easily. Then the inner wall of the sliding sleeve 15 limits the outer end of the locking rod 26, so that the locking rod 26 and the locking groove 27 cooperate to limit the rotation of the control sleeve 5, preventing the structure from changing after the flow rate is adjusted, thereby ensuring the structural stability after the flow rate is adjusted and ensuring the stable use of the equipment.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for the production of neodymium iron boron magnets, comprising a processing chamber (1), characterized in that: A dust removal device is installed in the processing chamber (1). The dust removal device includes a connecting chamber (2), nozzles (3), and a water inlet pipe (4). Multiple nozzles (3) are installed at the bottom of the connecting chamber (2). One end of the water inlet pipe (4) is connected to the connecting chamber (2), and the other end of the water inlet pipe (4) is connected to a control device. The control device includes a control sleeve (5), a connecting pipe (6), a rotating shaft (7), a control groove (8), a control shaft (9), and a control plate (10). One end of the control plate (10) is rotatably connected to the control sleeve (5) through the rotating shaft (7), and the control shaft (9) on the other side of the control plate (10) is slidably installed on the control sleeve (5). In the trough (8), the control trough (8) is opened on one side of the connecting pipe (6), and a reinforcement mechanism is provided on the outside of the water inlet pipe (4). The reinforcement mechanism includes a rotating trough (11), a rotating plate (12), a top spring (13), a support plate (14), a sliding sleeve (15), a clamping plate (16), and a thrust bearing (17). The rotating trough (11) is opened on the rotating plate (12), the top spring (13) is connected to the thrust bearing (17) and the sliding sleeve (15), the support plate (14) is installed on one side of the sliding sleeve (15), the clamping plate (16) is installed on the inside of the support plate (14), and the thrust bearing (17) is installed on one side of the rotating plate (12).

2. The dust removal device for the production of neodymium iron boron magnets according to claim 1, characterized in that: The processing chamber (1) is connected to an input pipe (18) at one end, and a collection chamber (19) is fixedly provided on the other side of the processing chamber (1).

3. A dust removal device for the production of neodymium iron boron magnets according to claim 2, characterized in that: The bottom of the processing chamber (1) is fixedly connected to a recycling chamber (20), and the recycling chamber (20) is detachably equipped with a movable chamber (21).

4. A dust removal device for the production of neodymium iron boron magnets according to claim 3, characterized in that: The collection chamber (19) is detachably equipped with a retrieval rack (22), and the bottom end of the retrieval rack (22) is equipped with a strong magnet (23).

5. A dust removal device for the production of neodymium iron boron magnets according to claim 4, characterized in that: The top of the collection chamber (19) is connected to an exhaust pipe (24).

6. A dust removal device for the production of neodymium iron boron magnets according to any one of claims 1-5, characterized in that: The control panel (10) has multiple control holes (25).

7. A dust removal device for the production of neodymium iron boron magnets according to claim 1, characterized in that: The control sleeve (5) has multiple locking rods (26) slidably mounted on its side wall, and the water inlet pipe (4) has multiple locking grooves (27) on its outer side. The inner end of the locking rod (26) is inserted into the locking groove (27).

8. A dust removal device for the production of neodymium iron boron magnets according to claim 7, characterized in that: The outer wall of the control sleeve (5) is provided with a movable spring (28), and the outer end of the locking rod (26) is movably connected to the outer wall of the control sleeve (5) through the movable spring (28).

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