Silica gel fishing and separating device

Abstract

The utility model discloses a silica gel scooping and separating device. The silica gel scooping and separating device comprises a filtering assembly, a feeding assembly, a discharging assembly and a collecting assembly, in the filtering assembly, a filtering net set and a first flow guiding set are arranged in a vertically-arranged filtering box, the filtering net set comprises multiple layers of filtering nets, and the first flow guiding set is distributed along the inner wall of the filtering box to guide filtrate. A cooling layer is arranged on the outer side of a feeding cylinder of the feeding assembly, the feeding cylinder is obliquely arranged and driven by a driving set to rotate, and a second input port is communicated with a first output port and located in a low position. In the discharging assembly, a first discharging set is connected with the filtering box to discharge filtrate, and a second discharging set is connected with the second output port of the feeding cylinder to discharge silica gel fine particles. The collecting assembly recycles filtrate through a first collecting box and recycles fine particles through a second collecting box. According to the device, through the collaborative design of multi-stage filtration, rotary flow guide and independent discharge channels, continuous separation of fished glue and efficient solid-liquid recovery are realized.

Description

Technical Field

[0001] This utility model relates to the field of silica gel desiccant production technology, and in particular to a silica gel scooping and separating device. Background Technology

[0002] Silica gel residue is the wash water produced during the solid-liquid separation of fine silica gel particles and wash water in the silica gel desiccant (mainly SiO2) production process. After separation, it can be recycled as reclaimed water for washing. Traditional methods use plate and frame filtration for separation, requiring frequent shutdowns and manual frame removal. Plate and frame feeding also consumes a lot of energy and cannot achieve continuous filtration and recycling of residue for washing. Current processing technologies struggle to balance efficient separation with continuous operation. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to propose a silicone glue-retrieving and separating device to solve the problems of easy clogging of the equipment filter screen requiring frequent shutdowns and low glue recovery rate.

[0004] To achieve the aforementioned technical objectives, this application provides a silicone glue-separating device, comprising a filtration assembly, a feeding assembly, a discharging assembly, and a collecting assembly. The filtration assembly includes a filter box, a filter screen assembly, and a first flow guide assembly. The filter box is arranged vertically, the filter screen assembly is disposed inside the filter box, and the first flow guide assembly is disposed on the inner wall of the filter box. A first inlet is provided at the top of the filter box, and a first outlet is provided at the bottom of the filter box. The feeding assembly includes a feeding cylinder and a drive assembly. A cooling layer is provided on the outer side of the feeding cylinder, and the feeding cylinder is inclined at a preset angle. The feeding cylinder has a second inlet. The system includes a second output port, a second input port connected to the first output port, and the second input port being higher than the second output port. A drive unit is connected to the feed cylinder and is used to drive the feed cylinder to rotate. The discharge assembly includes a first discharge group and a second discharge group. The first discharge group is connected to the filter box and is used to discharge the glue residue from the filter assembly. The second discharge group is connected to the second output port and is used to discharge the precipitated fine particles of silicone gel. The collection assembly includes a first collection box and a second collection box. The first collection box is connected to the first discharge group, and the second collection box is connected to the second discharge group.

[0005] In some embodiments, the filter assembly includes a plurality of filter screens spaced apart from top to bottom, a first drive rod, and a first drive unit. Each filter screen has filter screen holes, and the edge of the filter screen is provided with a filter baffle. The first drive rod is connected to the filter screens in sequence. The first drive unit is drivenly connected to the first drive rod, and the first drive unit is used to drive the filter screens to vibrate.

[0006] In some embodiments, the diameter of the filter mesh gradually decreases from top to bottom along the vertical direction.

[0007] In some embodiments, the first flow guide group includes a plurality of first flow guide rings and a plurality of first flow guide tubes. Each first flow guide ring is disposed below a filter screen. The edge of the first flow guide ring is curved away from the center of the filter box, and the radial cross section of the first flow guide ring is arc-shaped. The plurality of first flow guide tubes are embedded in the filter box, and each first flow guide tube communicates with a first flow guide ring.

[0008] In some embodiments, the first discharge group includes a plurality of first connecting pipes, a second connecting pipe, and a first pump body. Each first connecting pipe is connected to a first guide ring. The second connecting pipes are respectively connected to the plurality of first connecting pipes. The first pump body is disposed on the second connecting pipe and is used to extract the glue from the second connecting pipe.

[0009] In some embodiments, the drive assembly includes a second drive unit, a first roller, a first groove, a second roller, and a second groove. The second drive unit is drivenly connected to the feed cylinder. The first roller is disposed on the outer wall of the feed cylinder. The first groove is slidably connected to the first roller. The second roller is disposed on the outer wall of the feed cylinder, and the first roller and the second roller are spaced apart. The second groove is slidably connected to the second roller.

[0010] In some embodiments, the feeding assembly further includes a first regulating valve, a temperature sensor, and a control unit. The first regulating valve is disposed at the second output port and is used to regulate the flow rate at the second output port. The temperature sensor is disposed inside the feeding cylinder and is used to detect the temperature inside the feeding cylinder. The control unit is electrically connected to the first regulating valve, the temperature sensor, and the drive assembly.

[0011] In some embodiments, the second discharge assembly includes a third connecting pipe, a first magnetic ring, a second magnetic ring, and a third driving unit. The third connecting pipe is connected to the output end of the feed cylinder extending downward. The first magnetic ring is embedded in the third connecting pipe and fits against the inner wall of the third connecting pipe. The second magnetic ring is sleeved on the outside of the third connecting pipe and attracts the first magnetic ring. The third driving unit is connected to the second magnetic ring and is used to drive the second magnetic ring to move up and down.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The above technical solution provides a silicone glue-retrieving and separating device, including a filtration assembly, a feeding assembly, a discharging assembly, and a collecting assembly. In the filtration assembly, a vertically arranged filter box contains a filter screen group and a first flow guide group. The filter screen group includes multiple layers of filter screens, and the first flow guide group is distributed along the inner wall of the filter box to guide the filtrate. The feeding assembly has a cooling layer on the outside of the feeding cylinder, is arranged at an angle, and is driven to rotate by a drive group. The second inlet is connected to the first outlet, and the second outlet is located at a lower position. In the discharging assembly, the first discharging group is connected to the filter box to discharge the filtrate, and the second discharging group is connected to the second outlet of the feeding cylinder to discharge fine silicone gel particles. The collecting assembly recovers the filtrate through the first collecting box and the fine particles through the second collecting box. This device achieves continuous separation of glue-retrieving liquid and efficient solid-liquid recovery through the coordinated design of multi-stage filtration, rotating flow guide, and independent discharging channels. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the silicone glue-retrieving and separating device described in the specific embodiment;

[0015] Figure 2 This is a schematic diagram of the structure of the filter screen described in the specific implementation method.

[0016] The attached figures are labeled as follows:

[0017] 1. Filtering components;

[0018] 11. Filter box;

[0019] 12. Filter assembly;

[0020] 121. Filter screen;

[0021] 13. First diversion group;

[0022] 14. First drive lever;

[0023] 15. First drive unit;

[0024] 2. Feeding assembly;

[0025] 21. Feed cylinder;

[0026] 211. Second input port;

[0027] 212. Second output port;

[0028] 22. Drive group;

[0029] 3. First collection box;

[0030] 4. Discharge assembly;

[0031] 41. First discharge group;

[0032] 411. First connecting pipe;

[0033] 412. Second connecting pipe;

[0034] 413. First pump body;

[0035] 42. Second discharge group;

[0036] 5. Second collection box. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0038] Please see Figures 1 to 2 This embodiment provides a silicone glue-separating device, including a filtering assembly, a feeding assembly, a discharging assembly, and a collecting assembly. The filtering assembly includes a filter box, a filter screen assembly, and a first flow guide assembly. The filter box is arranged vertically, the filter screen assembly is disposed inside the filter box, and the first flow guide assembly is disposed on the inner wall of the filter box. A first inlet is provided at the top of the filter box, and a first outlet is provided at the bottom of the filter box. The feeding assembly includes a feeding cylinder and a driving assembly. A cooling layer is provided on the outer side of the feeding cylinder, and the feeding cylinder is inclined at a preset angle. The feeding cylinder has a second inlet and a second outlet. The system includes an outlet, a second inlet connected to a first outlet, with the second inlet higher than the second outlet, a drive unit connected to the feed cylinder for driving the feed cylinder to rotate, a discharge assembly including a first discharge group and a second discharge group, the first discharge group connected to the filter box for discharging the glue residue from the filter assembly, and the second discharge group connected to the second outlet for discharging the precipitated silica gel particles, and a collection assembly including a first collection box and a second collection box, the first collection box connected to the first discharge group and the second collection box connected to the second discharge group.

[0039] In this embodiment, the filter mesh group is preferably a graded filter structure composed of multiple layers of metal mesh, with the mesh size decreasing step by step along the material flow direction to intercept fine particles of silicone gel; the first flow guide group is preferably a flow guide rib set on the inner wall of the filter box to avoid local accumulation by changing the material flow trajectory.

[0040] The cooling layer of the feed cylinder is preferably a jacketed structure, with a circulating cooling medium inside to maintain the material temperature and prevent excessive evaporation of the adhesive. The drive unit rotates the feed cylinder to enhance the sedimentation and separation of fine silicone gel particles and promote the directional movement of the material.

[0041] Preferably, the first discharge group collects the filtrate through a first connecting pipe and a second connecting pipe, and the second discharge group is connected to the feed cylinder to discharge the fine particles of silica gel.

[0042] Preferably, the first collection box is equipped with a first discharge group and the second collection box is equipped with a second discharge group, and the first collection box and the second collection box are respectively equipped with sealing valves to realize independent storage of glue and silicone gel fine particles.

[0043] The working principle of the silica gel slurry separation device provided in this embodiment can be understood as follows: After the silica gel slurry enters the filter box through the first inlet, it passes through a multi-layer filter screen group to intercept fine silica gel particles and impurities. The initially separated liquid is discharged to the first collection box through the first discharge group. The concentrated slurry containing fine silica gel particles is discharged through the first outlet and then enters the inclined feed cylinder through the second inlet. Driven by the drive group, the feed cylinder rotates to promote the sedimentation and separation of fine silica gel particles in the concentrated slurry and further realizes the uniform conveying of fine silica gel particles. At the same time, the cooling layer maintains a low temperature environment to inhibit the volatilization of the slurry. The precipitated fine silica gel particles are discharged through the second outlet and introduced into the second collection box through the second discharge group, realizing continuous solid-liquid separation and classified recycling.

[0044] This embodiment utilizes a combination of staged filtration and a flow-guiding structure in the filtration component to achieve initial interception and anti-clogging control of fine silica gel particles. The rotary cooling conveyor design of the feeding component suppresses the evaporation of the recycled adhesive while enhancing material flowability. The dual-channel structure of the discharge component can simultaneously discharge the recycled adhesive and fine silica gel particles, ensuring continuous operation. The synergistic effect of these components significantly improves the purity of the recycled adhesive and the efficiency of silica gel separation, while reducing equipment maintenance frequency, making it suitable for the resource recovery needs of high-viscosity silica gel recycled adhesive.

[0045] In some embodiments, the filter assembly includes a plurality of filter screens spaced apart from top to bottom, a first drive rod, and a first drive unit. Each filter screen has filter screen holes, and the edge of the filter screen is provided with a filter baffle. The first drive rod is connected to the filter screens in sequence. The first drive unit is drivenly connected to the first drive rod, and the first drive unit is used to drive the filter screens to vibrate.

[0046] In this embodiment, the filter screen refers to a multi-layered metal mesh structure, with gradient filtration layers spaced apart from top to bottom to trap fine particles of silica gel; the filter baffle is a raised annular structure surrounding the edge of the filter screen to prevent material spillage and guide impurity accumulation; the first drive rod is a rigid connecting rod that penetrates through the multi-layered filter screen, transmitting the vibration force generated by the first drive unit to each layer of the filter screen; the first drive unit is a motor or a vibration motor, which drives the first drive rod to cause the filter screen to vibrate periodically, using inertial force to dislodge the blockage from the mesh and maintain filtration efficiency.

[0047] This embodiment effectively alleviates filter clogging by using a vibrating filter assembly, reducing the frequency of downtime for cleaning; the synergistic effect of multi-stage filtration and edge guiding can improve the accuracy of impurity interception and prevent fine particles from entering subsequent components; the vibration drive structure is simple and reliable, adaptable to the characteristics of high-viscosity materials, ensures continuous separation operation, and significantly improves the purity of glue recovery and the efficiency of silica gel separation.

[0048] In some embodiments, the diameter of the filter mesh gradually decreases from top to bottom along the vertical direction.

[0049] In this embodiment, by setting the diameter of the filter mesh to gradually decrease from top to bottom in the vertical direction, a gradient filtration structure is formed. This allows the silicone adhesive to pass through the filter mesh in sequence to intercept impurities in layers, thereby increasing the filtration area of ​​the filter mesh, preventing the filter mesh from being clogged by fine particles after long-term use, optimizing the material flow path, reducing local accumulation, improving filtration efficiency and impurity classification and interception capabilities, reducing the frequency of filter mesh cleaning, and ensuring the stability of continuous separation operations.

[0050] In some embodiments, the first flow guide group includes a plurality of first flow guide rings and a plurality of first flow guide tubes. Each first flow guide ring is disposed below a filter screen. The edge of the first flow guide ring is curved away from the center of the filter box, and the radial cross section of the first flow guide ring is arc-shaped. The plurality of first flow guide tubes are embedded in the filter box, and each first flow guide tube communicates with a first flow guide ring.

[0051] In this embodiment, the first guide ring refers to an annular guide structure with an arc-shaped radial cross-section, which is set below the filter screen. Its edge bends towards the outer wall of the filter box to guide the filtered liquid to disperse and flow in a tangential direction, avoiding the impact of vertical falling and causing the fine silica particles to be stirred up again. The first guide tube is a tubular channel embedded in the wall of the filter box and communicates with the first guide ring. It is used to directionally guide the liquid gathered by the guide ring to the next stage of filtration area, forming a stepped guide path.

[0052] This embodiment optimizes the liquid flow trajectory by cooperating with the first flow guide ring and the first flow guide tube on the arc surface, reducing the accumulation and back mixing of fine silica particles under the filter screen, while enhancing the efficiency of liquid classification and guiding, avoiding local turbulence from interfering with the filtration process, and further improving the stability of impurity interception and the overall continuous operation of the filter component.

[0053] In some embodiments, the first discharge group includes a plurality of first connecting pipes, a second connecting pipe, and a first pump body. Each first connecting pipe is connected to a first guide ring. The second connecting pipes are respectively connected to the plurality of first connecting pipes. The first pump body is disposed on the second connecting pipe and is used to extract the glue from the second connecting pipe.

[0054] In this embodiment, the first discharge group is connected to each layer of first guide rings via multiple first connecting pipes, independently guiding the glue residue intercepted by the filtration stages to the second connecting pipes for centralized processing. This, combined with synchronous suction from the first pump, forms a parallel discharge channel. This effectively avoids localized blockages or uneven flow rates caused by a single flow path during multi-stage filtration, ensuring timely discharge of filtrate from each stage, reducing the accumulation of fine particles on the filter screen surface, and improving filtration efficiency and continuity. Simultaneously, the multi-channel coordinated discharge structure reduces the risk of single-point failure, ensuring stable system operation and enabling the efficient recovery and continuous operation of the glue residue separation process.

[0055] In some embodiments, the drive assembly includes a second drive unit, a first roller, a first groove, a second roller, and a second groove. The second drive unit is drivenly connected to the feed cylinder. The first roller is disposed on the outer wall of the feed cylinder. The first groove is slidably connected to the first roller. The second roller is disposed on the outer wall of the feed cylinder, and the first roller and the second roller are spaced apart. The second groove is slidably connected to the second roller.

[0056] In this embodiment, the second drive unit is a motor or reducer connected to the feed cylinder to provide rotational power. The first and second rollers are preferably cylindrical metal wheels symmetrically fixed to the outer wall of the feed cylinder, transmitting driving force through rolling contact. The first and second grooves are arc-shaped guide rails matching the rollers, embedded in the equipment bracket. The sliding fit between the first roller and the first groove, and between the second roller and the second groove, restricts the rotation trajectory of the feed cylinder, ensuring axial stability in the tilted state. The spaced first and second rollers can distribute the supporting force and prevent the feed cylinder from shifting due to gravity.

[0057] This embodiment achieves dynamic balance control when the feed cylinder tilts and rotates by using a sliding fit design between the first roller and the first groove, and between the second roller and the second groove. This reduces the impact of vibration on material conveying and ensures uniform feeding. The spaced arrangement of the first and second rollers can effectively share the load, avoid stress concentration at a single point, improve the durability and smoothness of the drive unit, and adapt to the continuous conveying requirements of high-viscosity adhesives.

[0058] In some embodiments, the feeding assembly further includes a first regulating valve, a temperature sensor, and a control unit. The first regulating valve is disposed at the second output port and is used to regulate the flow rate at the second output port. The temperature sensor is disposed inside the feeding cylinder and is used to detect the temperature inside the feeding cylinder. The control unit is electrically connected to the first regulating valve, the temperature sensor, and the drive assembly.

[0059] In this embodiment, by setting a control unit electrically connected to the drive group, the opening of the first regulating valve is dynamically adjusted based on the temperature data inside the feed cylinder detected in real time by the temperature sensor to control the flow rate of the second output port, and the rotation speed of the drive group is adjusted simultaneously to make the material conveying rate and the temperature control effect of the cooling layer precisely match, suppressing the evaporation of the glue while maintaining the fluidity of the glue; the closed-loop control of flow rate and rotation speed can avoid the problem of silica gel deposition or incomplete separation caused by material overload or temperature fluctuation in the feed cylinder, and improve the purity of glue recovery and the continuity of equipment operation.

[0060] In some embodiments, the second discharge assembly includes a third connecting pipe, a first magnetic ring, a second magnetic ring, and a third driving unit. The third connecting pipe is connected to the output end of the feed cylinder extending downward. The first magnetic ring is embedded in the third connecting pipe and fits against the inner wall of the third connecting pipe. The second magnetic ring is sleeved on the outside of the third connecting pipe and attracts the first magnetic ring. The third driving unit is connected to the second magnetic ring and is used to drive the second magnetic ring to move up and down.

[0061] In this embodiment, a flow channel is formed by the first magnetic ring adhering to the inner wall of the third connecting pipe. When the second magnetic ring moves up and down along the outer wall of the pipe driven by the third driving unit, the magnetic attraction force drives the first magnetic ring to move synchronously, causing the fine silica gel particles to detach from the pipe wall under the shearing action of the magnetic ring. The non-contact magnetic transmission between the first and second magnetic rings can avoid mechanical wear. At the same time, the discharge speed can be precisely controlled by adjusting the movement rate of the second magnetic ring to prevent the accumulation or blockage of fine silica gel particles. The intermittent disturbance generated by the displacement of the first and second magnetic rings can destroy the silica gel adhesion structure, maintain the cleanliness of the inner wall of the third connecting pipe, ensure the continuous and stable discharge of precipitates, avoid secondary backmixing of silica gel affecting the separation purity, and improve the long-term reliability and maintenance convenience of the equipment.

[0062] By adopting the above technical solutions, this utility model differs from the prior art and has the following beneficial effects:

[0063] The above technical solution achieves continuous and efficient solid-liquid separation and recovery through a multi-stage collaborative structure. The filtration assembly employs a multi-layer vibrating filter screen, which progressively intercepts fine silica gel particles through the filter mesh. Combined with the first guide ring and the first guide tube, it effectively collects the filtrate and reduces filter clogging, improving the glue recovery rate. The inclined cooling feed cylinder of the feeding assembly is driven by rotation to enhance the sedimentation and separation of fine silica gel particles, while temperature control ensures material flowability. The discharge assembly achieves synchronous and continuous discharge of filtrate and fine particles through independent first and second discharge groups, with a magnetic ring linkage structure further optimizing the separation effect of fine silica gel particles. The collection assembly has independent first and second recovery tanks to ensure the separate collection of filtrate and fine silica gel particles. This device, through the comprehensive design of vibration filtration, dynamic flow guidance, cooling temperature control, and continuous discharge, solves the problems of frequent downtime and low recovery rate of traditional technologies, achieving continuous operation and efficient resource recovery of the glue separation process.

[0064] The above description is only a part of the embodiments of this utility model, and does not limit the scope of protection of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. A silicone glue-retrieving and separating device, characterized in that, include: A filtration assembly includes a filter box, a filter screen assembly, and a first flow guide assembly. The filter box is arranged vertically, the filter screen assembly is disposed inside the filter box, the first flow guide assembly is disposed on the inner wall of the filter box, a first inlet is provided above the filter box, and a first outlet is provided below the filter box. The feeding assembly includes a feeding cylinder and a drive group. The outer side of the feeding cylinder is provided with a cooling layer, and the feeding cylinder is inclined at a preset angle. The feeding cylinder has a second input port and a second output port. The second input port is connected to the first output port and is higher than the second output port. The drive group is driven to drive the feeding cylinder to rotate. The discharge assembly includes a first discharge group and a second discharge group. The first discharge group is connected to the filter box and is used to discharge the glue residue inside the filter assembly. The second discharge group is connected to the second output port and is used to discharge the precipitated silica gel fine particles. The collection component includes a first collection box and a second collection box, wherein the first collection box is connected to the first discharge group and the second collection box is connected to the second discharge group.

2. The silicone glue-retrieving and separating device according to claim 1, characterized in that, The filter assembly includes: Multiple filter screens are spaced apart from top to bottom, and each filter screen has filter mesh holes, and the edges of the filter screens are provided with filter baffles; The first drive rod is connected to the filter screen in sequence; The first drive unit is connected to the first drive rod and is used to drive the filter screen to vibrate.

3. The silicone glue-retrieving and separating device according to claim 2, characterized in that, The diameter of the filter mesh gradually decreases from top to bottom along the vertical direction.

4. The silicone glue-retrieving and separating device according to claim 2, characterized in that, The first diversion group includes: Multiple first guide rings are provided, each first guide ring being disposed below one of the filter screens. The edges of the first guide rings are curved away from the center of the filter box, and the radial cross-section of the first guide rings is arc-shaped. Multiple first guide tubes are embedded in the filter box, and each first guide tube is connected to a first guide ring.

5. The silicone glue-retrieving and separating device according to claim 4, characterized in that, The first discharge group includes: Multiple first connecting pipes, each of which is connected to a first flow guide ring; The second connecting pipe is connected to a plurality of first connecting pipes respectively; A first pump body is installed on the second connecting pipe, and the first pump body is used to extract the glue solution in the second connecting pipe.

6. The silicone glue-retrieving and separating device according to claim 2, characterized in that, The drive group includes: The second drive unit is connected to the feed cylinder drive; The first roller is disposed on the outer wall of the feed cylinder; The first groove is slidably connected to the first roller; The second roller is disposed on the outer wall of the feed cylinder, and the first roller and the second roller are disposed at a distance from each other; The second groove is slidably connected to the second roller.

7. The silicone glue-retrieving and separating device according to claim 1, characterized in that, The feeding assembly further includes: A first regulating valve is disposed at the second output port, and the first regulating valve is used to regulate the flow rate at the second output port; A temperature sensor is installed inside the feed cylinder, and the temperature sensor is used to detect the temperature inside the feed cylinder; The control unit is electrically connected to the first regulating valve, temperature sensor, and drive assembly.

8. The silicone glue-retrieving and separating device according to claim 1, characterized in that, The second discharge group includes: The third connecting pipe is connected to the output end of the feed cylinder that extends downwards; A first magnetic ring is embedded in the third connecting tube, and the first magnetic ring is in contact with the inner wall of the third connecting tube; The second magnetic ring is sleeved on the outside of the third connecting tube, and the second magnetic ring is attracted to the first magnetic ring; The third drive unit is connected to the second magnetic ring via a transmission, and the third drive unit is used to drive the second magnetic ring to move up and down.

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