Permanent magnetic ferrite grinding material recycling device

Abstract

The invention relates to the technical field of permanent magnet production and processing auxiliary equipment, in particular to a permanent magnetic ferrite grinding material recycling device which comprises a filter tank, two sets of supporting shafts, a reel, filter screen cloth and a cleaning brush, and the filter tank is provided with a waste water inlet and a waste water outlet which are arranged in the first direction; the two groups of supporting shafts can be relatively movably arranged in the filtering tank in a second direction perpendicular to the first direction, a plurality of shaft bodies of each group of supporting shafts are distributed at intervals in the first direction, and the shaft bodies of the two groups of supporting shafts are arranged in a staggered manner in the second direction; the reel is rotatably arranged in the filter tank; the first end of the filter screen cloth is connected to the filter tank, and the second end of the filter screen cloth penetrates through the two groups of supporting shafts and then is connected with the reel; the cleaning brush is arranged in the filter tank and is provided with bristles attached to the surface of the filter screen cloth. According to the invention, a plurality of filter areas are integrated into one piece of filter screen cloth, and by virtue of the synergistic effect of the two groups of support shafts and the reel, not only can multi-layer filtration of wastewater be realized, but also the filter areas are convenient to maintain.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for the production and processing of permanent magnets, and particularly to a device for recycling permanent magnet ferrite grinding materials. Background Art

[0002] As an important basic functional material in the electronics industry, permanent magnet ferrite will generate a large amount of wastewater containing grinding materials during the production and processing process, especially in the grinding process. Given the high economic value and environmental impact of these grinding materials, their recycling is particularly important.

[0003] In the existing technology, since the density of the grinding material is greater than that of water, the method of first precipitation and then filtration is usually used to recover the grinding material in the wastewater. This process generally includes two steps: First, the grinding material is settled in the sedimentation tank; Second, it is intercepted and filtered through a filter screen in the filtration tank. In order to improve the recovery efficiency of the grinding material, the existing technical solutions usually arrange multiple filter screens in the filtration tank to increase the interception effect, so as to separate as much grinding material as possible from the wastewater. However, this solution has deficiencies: Since the filter screen is easily blocked by fine particles and needs to be frequently cleaned and maintained, and the multiple filter screens are relatively independent. Each time of cleaning and maintenance, all the filter screens need to be disassembled and cleaned in sequence, which not only increases the labor cost, but also may affect the continuity of production and the recovery efficiency of the grinding material due to untimely cleaning. In view of the above problems, the present invention proposes a device for recycling permanent magnet ferrite grinding materials. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for recycling permanent magnet ferrite grinding materials to solve the problems raised in the above background art.

[0005] The present invention is achieved through the following technical solutions:

[0006] A device for recycling permanent magnet ferrite grinding materials includes a filtration tank, two groups of support shafts, a reel, a filter mesh cloth, and a cleaning brush. Among them, the filtration tank has a wastewater inlet and a wastewater outlet arranged along a first direction; the two groups of support shafts are arranged in the filtration tank so as to be relatively movable along a second direction perpendicular to the first direction. A plurality of shafts of each group of support shafts are spaced along the first direction, and the shafts of the two groups of support shafts are staggered in the second direction; the reel is rotatably arranged in the filtration tank; the first end of the filter mesh cloth is connected to the filtration tank, and the second end of the filter mesh cloth passes through the two groups of support shafts and is connected to the reel; the cleaning brush is arranged in the filtration tank and has bristles that fit the surface of the filter mesh cloth.

[0007] Optionally, the two groups of support shafts include an upper support shaft group and a lower support shaft group, the lower support shaft group is fixed in the filter tank, and the upper support shaft group is movable along the second direction relative to the lower support shaft group.

[0008] Optionally, the permanent magnet ferrite grinding material recycling device also includes a driving device for driving the reel to rotate, and the upper support shaft group is connected to the driving device through a transmission structure, so that the driving device drives the reel and the upper support shaft group to move synchronously.

[0009] Optionally, the driving device is a motor, and the upper support shaft group is transmission-connected to the motor via a rack and pinion mechanism.

[0010] Optionally, the upper support shaft group includes a plurality of upper shaft bodies, the lower support shaft group includes a plurality of lower shaft bodies, the plurality of upper shaft bodies are commonly connected to a movable frame, and the movable frame is slidably connected to the filter tank along the second direction.

[0011] Optionally, a rebound shaft is rotatably connected in the filter tank, the rebound shaft is elastically connected to the filter tank via a spring, and the first end of the filter cloth is fixedly connected to the rebound shaft.

[0012] Optionally, the filter cloth is divided into several filter areas along its length direction, each filter area has a different mesh size, and the mesh sizes of the several filter areas gradually decrease from the first end of the filter cloth to the second end of the filter cloth.

[0013] Optionally, the cleaning brush comprises an upper brush body and a lower brush body clamped on both sides of the filter mesh cloth, and the bristles are arranged on one side of the upper brush body and the lower brush body facing the filter mesh cloth.

[0014] Optionally, two pairs of positioning shafts are arranged in the filter tank along the first direction, the two pairs of positioning shafts are arranged on both sides of the cleaning brush, and the two positioning shafts of each pair of the positioning shafts are clamped on both sides of the filter cloth respectively.

[0015] Optionally, the permanent magnet ferrite grinding material recycling device also includes a sedimentation tank, which has a water inlet and a drain outlet. The drain outlet of the sedimentation tank is connected to the wastewater inlet of the filter tank through a connecting pipe. A plurality of partitions are fixedly arranged in the sedimentation tank, and the plurality of partitions divide the interior of the filter tank into a water passage connecting the water inlet and the drain outlet.

[0016] Compared with the prior art, the present invention provides a permanent ferrite grinding material recycling device, which has the following beneficial effects:

[0017] 1. The present invention integrates multiple filtering areas onto a single filter mesh cloth and, with the synergistic effect of two sets of support shafts and a reel, realizes the unfolding and cleaning of the filtering areas. It can not only achieve multi-level filtration of wastewater but also facilitate the cleaning and maintenance of the filtering areas.

[0018] 2. The present invention uses a unified driving device to synchronize the movement of the upper support group and the reel, ensuring the coordination of their actions. During specific operations, when the upper support shaft group moves upward to release the filter mesh cloth, the reel will synchronously roll up the released filter mesh cloth. During this winding process, the filter mesh cloth always remains taut, enabling the cleaning brush to more effectively remove the blocked particles on the filter mesh cloth.

[0019] 3. With the setting of the resilient shaft in the present invention, when the filter mesh cloth is performing wastewater filtration operations, the resilient shaft can roll up the first end portion of the filter mesh cloth, and this part of the filter mesh cloth will not participate in the wastewater filtration activity. When the filter mesh cloth needs to be cleaned, the part of the filter mesh cloth that did not participate in the filtration activity will be pulled and unfolded by the reel, ensuring that all the filter mesh cloth participating in the filtration can be cleaned by the cleaning brush, thus avoiding the problem of incomplete cleaning of the filter mesh cloth.

[0020] 4. In the present invention, a smooth water-impermeable area is provided at the first end of the filter mesh cloth. During the filtration of the filter mesh cloth, the smooth area is part of the filter mesh cloth that is wound around the outside of the resilient shaft and does not participate in the wastewater filtration. Since the surface of the smooth area is smooth, it is less likely to adhere to abrasive materials and is more convenient to clean.

[0021] 5. By setting filtering areas with different mesh sizes in the present invention, it is possible to intercept particles of different sizes, enabling the wastewater to gradually transition from coarse filtration to fine filtration when passing through multiple filtration areas. In addition, this design helps to relieve the filtration burden on the filtration area near the wastewater inlet, striving to keep the clogging degree of each filtration area balanced, thereby extending the maintenance cycle of the filter mesh cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is of the present invention Figure 1 sectional structural schematic diagram;

[0024] Figure 3 is of the present invention Figure 2 magnified structural schematic diagram at position A;

[0025] Figure 4 is of the present invention Figure 2 front view structural schematic diagram;

[0026] Figure 5 Structural schematic diagram of the working state of the filter mesh of the present invention;

[0027] Figure 6 Partial structural schematic diagram of the present invention;

[0028] Figure 7 Structural schematic diagram of the filter mesh, driving device and return spring shaft of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural schematic diagram at position B of

[0030] In the figure: 100, filter tank; 1000, waste water inlet; 1001, waste water outlet; 101, upper support shaft group; 1010, upper shaft body; 102, lower support shaft group; 1020, lower shaft body; 103, reel; 104, filter mesh; 1040, filtering area; 1041, smooth area; 105, cleaning brush; 1050, upper brush body; 1051, lower brush body; 1052, bristles; 106, movable frame; 1060, transverse bracket; 1061, longitudinal bracket; 1062, connecting shaft; 1063, annular joint; 107, guide shaft; 108, return spring shaft; 1080, first clamping hole; 109, winding spring; 1090, external connection end; 1091, internal connection end; 110, mounting cover; 1101, second clamping hole; 111, positioning shaft; 200, driving device; 201, gear; 202, rack; 300, sedimentation tank; 3000, water inlet; 3001, drain outlet; 301, partition; 302, water passage; 303, connecting pipe. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: Please refer to Figures 1 to 8, according to an embodiment of the present invention, a device for recycling permanent magnet ferrite grinding materials is provided, mainly including a filtration tank 100, two groups of support shafts, a winding shaft 103, a filter mesh cloth 104, and a cleaning brush 105. Among them, the top of the filtration tank 100 is open, and the filtration tank 100 has a wastewater inlet 1000 and a wastewater outlet 1001 arranged along a first direction; two groups of support shafts are arranged in the filtration tank 100 so as to be relatively movable along a second direction perpendicular to the first direction. A plurality of shafts of each group of support shafts are distributed at intervals along the first direction, and the shafts of the two groups of support shafts are staggered in the second direction; the winding shaft 103 is rotatably arranged in the filtration tank 100; in Figure 2 , the first direction is the left-right direction, and the second direction is the up-down direction. The first end of the filter mesh cloth 104 is fixedly or elastically connected to the filtration tank 100, and the second end of the filter mesh cloth 104 passes through the two groups of support shafts and then is connected to the winding shaft 103. It can be understood that the filter mesh cloth 104 passing through the two groups of support shafts means that the filter mesh cloth 104 passes through each shaft of the two groups of support shafts in sequence; the cleaning brush 105 is arranged in the filtration tank 100 and has bristles 1052 that fit the surface of the filter mesh cloth 104.

[0033] In the device for recycling permanent magnet ferrite grinding materials with the above structure, during the process of filtering wastewater, the two groups of support shafts open the filter mesh cloth 104, so that it bends in the filtration tank 100 to form a plurality of filtration areas 1040 distributed along the wastewater flow direction. Each filtration area 1040 can independently complete the filtration of wastewater. The wastewater containing grinding materials flows into the filtration tank from the wastewater inlet 1000, and after being multi-layer filtered through the plurality of filtration areas 1040 of the filter mesh cloth 104, it is discharged from the wastewater outlet 1001. This process can effectively intercept the grinding materials in the wastewater and ensure that the filtration effect reaches the expectation. When it is necessary to clean the filter mesh cloth 104, the two groups of support shafts can be separated to release the filter mesh cloth 104. Subsequently, the winding shaft 103 is used to roll up the filter mesh cloth 104. During the movement of the filter mesh cloth 104, the bristles 1052 of the cleaning brush 105 will clean its surface, thereby realizing the automatic cleaning of the filter mesh cloth 104. Therefore, by integrating a plurality of filtration areas 1040 on a single filter mesh cloth 104 and relying on the coordinated action of the two groups of support shafts and the winding shaft 103 to realize the unfolding and cleaning of the filtration areas 1040, not only can multi-level filtration of wastewater be achieved, but also the cleaning and maintenance of the filtration areas 1040 are facilitated.

[0034] In this exemplary embodiment, the two groups of support shafts include an upper support shaft group 101 and a lower support shaft group 102, the lower support shaft group 102 is fixed in the filter tank 100, and the upper support shaft group 101 is movable relative to the lower support shaft group 102 along the second direction. When the upper support shaft group 101 moves from the upper side to the lower side of the lower support shaft group 102, the filter mesh cloth 104 is unfolded and tightened, forming a plurality of curved filter areas 1040 in the filter tank 100. Conversely, when the upper support shaft group 101 moves from the lower side to the upper side of the lower support shaft group 102, the originally tight filter mesh cloth 104 is relaxed, and the filter mesh cloth 104 can be wound on the reel 103. In other embodiments, the upper support shaft group 101 and the filter tank 100 can be relatively fixed, and the lower support shaft group 102 is movable relative to the upper support shaft group 101 along the second direction. Alternatively, relative movement can be achieved between the upper support shaft group 101 and the filter tank 100, and between the lower support shaft group 102 and the filter tank 100.

[0035] In this exemplary embodiment, the permanent ferrite grinding material recycling device also includes a driving device 200 for driving the reel 103 to rotate, and the upper support shaft group 101 is connected to the driving device 200 through a transmission structure, so that the driving device 200 drives the reel 103 and the upper support shaft group 101 to move synchronously. By adopting a unified driving device 200 to synchronize the movement of the upper support group with the movement of the reel 103, the coordination of the movements of the two can be ensured. For example, in the process of the upper support shaft group 101 moving upward to release the filter mesh cloth 104, the reel 103 will synchronously roll up the released filter mesh cloth 104. In this rolling process, the filter mesh cloth 104 is always kept in a taut state, so that the cleaning brush 105 can more effectively remove the blocked particles on the filter mesh cloth 104.

[0036] In this exemplary embodiment, the upper support shaft group 101 includes a plurality of upper shaft bodies 1010, and the lower support shaft group 102 includes a plurality of lower shaft bodies 1020. The plurality of upper shaft bodies 1010 are commonly connected to a movable frame 106, and the movable frame 106 is slidably connected to the filtration tank 100 along the second direction. The movable frame 106 is mainly composed of a transverse bracket 1060, a longitudinal bracket 1061, and a plurality of connecting shafts 1062. The transverse bracket 1060 is disposed above the filtration tank 100 and extends along the first direction; the longitudinal bracket 1061 is vertically welded onto the transverse bracket 1060. At both ends of the transverse bracket 1060, a ring joint 1063 is fixed respectively. Two guide shafts 107 are provided on the filtration tank 100, and the two guide shafts 107 are slidably connected to the ring joints 1063 at both ends of the transverse bracket 1060 respectively. The plurality of connecting shafts 1062 are spaced and welded to the bottom of the transverse bracket 1060 along the first direction, and the lower end of each connecting shaft 1062 is fixedly welded to the middle of an upper shaft body 1010. The configuration of the movable frame 106 effectively connects the plurality of upper shaft bodies 1010 in the upper support shaft group 101 firmly into a whole, so as to facilitate the synchronous movement of the upper shaft bodies 1010 along the second direction through the driving device 200.

[0037] In this exemplary embodiment, the driving device 200 is a motor, and the upper support shaft group 101 is in transmission connection with the motor through a gear 201 - rack 202 mechanism. Specifically, the gear 201 is coaxially fixed to the output shaft of the motor, and the rack 202 and the upper support shaft group 101 are connected by a fixed connection method. For example, in this example, a rack 202 extending downward is fixedly provided at both ends of the longitudinal bracket 1061 of the movable frame 106. When the motor drives the gear 201 to rotate, it will cause the rack 202 and the upper support shaft group 101 to move along the second direction.

[0038] In the present exemplary embodiment, a resilient shaft 108 is rotatably connected within the filtration tank 100. The resilient shaft 108 is elastically connected to the filtration tank 100 through a spring 109. The first end of the filter mesh cloth 104 is fixedly connected to the resilient shaft 108. Specifically, in this example, mounting covers 110 are fixedly provided on the filtration tank 100 at positions at both ends of the resilient shaft 108. The spring 109 is installed within the mounting covers 110. The spring 109 is spiral-shaped and its two ends are respectively bent to form an external connection end 1090 and an internal connection end 1091. A first clamping hole 1080 adapted to the internal connection end 1091 is provided on the resilient shaft 108, and a second clamping hole 1101 adapted to the external connection end 1090 is provided on the mounting cover 110. Through the above arrangement of the resilient shaft 108, when the filter mesh cloth 104 performs wastewater filtration operations, the resilient shaft 108 can roll up a part of the first end of the filter mesh cloth 104, and this part of the filter mesh cloth 104 will not participate in the wastewater filtration activity. When the filter mesh cloth 104 needs to be cleaned, the part of the filter mesh cloth 104 that did not participate in the filtration activity will be pulled and unfolded by the reel 103, ensuring that all the filter mesh cloth 104 participating in the filtration can be cleaned by the cleaning brush 105, thus avoiding the problem of incomplete cleaning of the filter mesh cloth 104.

[0039] In the present exemplary embodiment, the filter mesh cloth 104 is divided into a plurality of filtration regions 1040 along its own length direction. The mesh sizes of each filtration region 1040 are different, and the mesh sizes of the several filtration regions 1040 gradually decrease in the direction from the first end of the filter mesh cloth 104 to the second end of the filter mesh cloth 104. By setting filtration regions 1040 with different mesh sizes, interception of particles of different sizes can be achieved, so that when the wastewater passes through multiple filtration regions 1040, it can gradually transition from coarse filtration to fine filtration. In addition, this design helps to relieve the filtration burden on the filtration region 1040 near the wastewater inlet 1000, and strives to keep the clogging degree of each filtration region 1040 balanced, thereby extending the maintenance cycle of the filter mesh cloth 104. Further, as Figure 7 shown, an impermeable smooth region 1041 is provided at the first end of the filter mesh cloth 104. During the filtration of the filter mesh cloth 104, the smooth region 1041 is a part of the filter mesh cloth 104 that is wound around the outside of the resilient shaft 108 and does not participate in wastewater filtration. Since the surface of the smooth region 1041 is smooth, it is less likely to adhere to abrasive materials and is more convenient to clean.

[0040] In the present exemplary embodiment, the cleaning brush 105 includes an upper brush body 1050 and a lower brush body 1051 clamped on both sides of the filter mesh cloth 104. Brush hairs 1052 are provided on the sides of the upper brush body 1050 and the lower brush body 1051 facing the filter mesh cloth 104. By adopting the symmetric configuration of the upper brush body 1050 and the lower brush body 1051, simultaneous cleaning of both sides of the filter mesh cloth 104 can be achieved, thereby improving the cleaning efficiency.

[0041] In the present exemplary embodiment, two pairs of positioning shafts 111 are arranged in the filtration tank 100 along the first direction. The two pairs of positioning shafts 111 are arranged on both sides of the cleaning brush 105, and the two positioning shafts 111 of each pair of positioning shafts 111 are respectively clamped on both sides of the filter mesh 104. Through the arrangement of the two groups of positioning shafts 111, the position of the part of the filter mesh 104 between the two groups of positioning shafts 111 in the second direction is restricted, ensuring that the cleaning brush 105 can apply an even pressure on the surface of the filter mesh 104, thereby improving the consistency of the cleaning effect.

[0042] In the present exemplary embodiment, the permanent magnet ferrite grinding material recycling device further includes a sedimentation tank 300. The sedimentation tank 300 has a water inlet 3000 and a drain outlet 3001. The drain outlet 3001 of the sedimentation tank 300 is connected to the waste water inlet 1000 of the filtration tank 100 through a connecting pipe 303. A plurality of partition plates 301 are fixedly arranged in the sedimentation tank 300. The plurality of partition plates 301 divide the interior of the sedimentation tank 300 to form a water passage 302 connecting the water inlet 3000 and the drain outlet 3001. With such an arrangement, before the waste water flows into the filtration tank 100, it will first enter the sedimentation tank 300 through the water inlet 3000. In the sedimentation tank 300, most of the grinding materials are precipitated, and only a small amount of fine-grained grinding materials flow into the filtration tank 100 with the waste water, thereby reducing the filtration burden on the filter mesh 104. In addition, the plurality of partition plates 301 arranged in the sedimentation tank 300 can extend the flow path of the waste water in the sedimentation tank 300, thereby improving the precipitation efficiency of the grinding materials.

[0043] Working principle: First, the wastewater is introduced into the sedimentation tank 300 from the water inlet 3000. In the sedimentation tank 300, most of the grinding materials are precipitated, and only a small amount of fine-grained grinding materials reach the drain outlet 3001 along with the flow of the wastewater. This part of the unprecipitated grinding materials will flow into the wastewater inlet of the filtration tank 100 through the connecting pipe 303. At this time, the upper support shaft group 101 is located below the lower support shaft group 102, and the two groups of support shafts open the filter mesh cloth 104, making it bend in the filtration tank 100 to form multiple filtration areas 1040 distributed along the wastewater flow direction. Each filtration area 1040 can independently complete the filtration of the wastewater. The wastewater containing grinding materials flows into the filtration tank from the wastewater inlet 1000, and after multi-layer filtration through multiple filtration areas 1040 of the filter mesh cloth 104, it is discharged from the wastewater outlet 1001. This process can effectively intercept the grinding materials in the wastewater and ensure that the filtration effect meets the expectation. When it is necessary to clean the filter mesh cloth 104, the upper support shaft group 101 is driven to move upward by the driving device 200, separating the two groups of support shafts to release the filter mesh cloth 104. At the same time, the motor synchronously drives the reel 103 to rotate, and the reel 103 rolls up the filter mesh cloth 104. During the movement of the filter mesh cloth 104, the bristles 1052 of the cleaning brush 105 will clean its surface, thus realizing the automatic cleaning of the filter mesh cloth 104.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanent ferrite grinding material recycling device, characterized in that: include: A filter tank (100) having a wastewater inlet (1000) and a wastewater outlet (1001) arranged along a first direction; Two groups of support shafts are arranged in the filter tank (100) so as to be relatively movable along a second direction perpendicular to the first direction, a plurality of shaft bodies of each group of support shafts are spaced apart along the first direction, and the shaft bodies of the two groups of support shafts are staggered in the second direction; A reel (103) rotatably disposed in the filter tank (100); A filter cloth (104), the first end of which is connected to the filter tank (100), and the second end of which passes through the two sets of support shafts and is connected to the reel (103); and a cleaning brush (105) disposed in the filter pool (100) and having bristles (1052) that fit the surface of the filter cloth (104).

2. The permanent ferrite grinding material recycling device according to claim 1 is characterized in that: The two groups of support shafts include an upper support shaft group (101) and a lower support shaft group (102); the lower support shaft group (102) is fixed in the filter tank (100); and the upper support shaft group (101) is movable along a second direction relative to the lower support shaft group (102).

3. The permanent magnet ferrite grinding material recycling device according to claim 2 is characterized in that: It also includes a driving device (200) for driving the reel (103) to rotate, and the upper support shaft group (101) is connected to the driving device (200) through a transmission structure, so that the driving device (200) drives the reel (103) and the upper support shaft group (101) to move synchronously.

4. The permanent ferrite grinding material recycling device according to claim 3 is characterized in that: The driving device (200) is a motor, and the upper support shaft group (101) is transmission-connected to the motor via a gear (201) rack (202) mechanism.

5. The permanent ferrite grinding material recycling device according to claim 4 is characterized in that: The upper support shaft group (101) includes a plurality of upper shaft bodies (1010), and the lower support shaft group (102) includes a plurality of lower shaft bodies (1020). The plurality of upper shaft bodies (1010) are connected together to a movable frame (106), and the movable frame (106) is slidably connected to the filter tank (100) along a second direction.

6. The permanent ferrite grinding material recycling device according to claim 1, characterized in that: A rebound shaft (108) is rotatably connected inside the filter pool (100), the rebound shaft (108) is elastically connected to the filter pool (100) via a spring (109), and the first end of the filter mesh cloth (104) is fixedly connected to the rebound shaft (108).

7. The permanent ferrite grinding material recycling device according to claim 6 is characterized in that: The filter mesh cloth (104) is divided into a plurality of filter areas (1040) along its length direction, each filter area (1040) has a different mesh size, and the mesh sizes of the plurality of filter areas (1040) gradually decrease in a direction from the first end of the filter mesh cloth (104) to the second end of the filter mesh cloth (104).

8. The permanent magnet ferrite grinding material recycling device according to any one of claims 1 to 6, characterized in that: The cleaning brush (105) comprises an upper brush body (1050) and a lower brush body (1051) clamped on both sides of the filter cloth (104); the bristles (1052) are provided on the side of the upper brush body (1050) and the side of the lower brush body (1051) facing the filter cloth (104).

9. The permanent magnet ferrite grinding material recycling device according to any one of claims 1 to 6, characterized in that: Two pairs of positioning shafts (111) are arranged in the filter tank (100) along a first direction, the two pairs of positioning shafts (111) are arranged on both sides of the cleaning brush (105), and the two positioning shafts (111) of each pair of positioning shafts (111) are respectively clamped on both sides of the filter cloth (104).

10. The permanent magnet ferrite grinding material recycling device according to any one of claims 1 to 6, characterized in that: The invention also comprises a sedimentation tank (300), wherein the sedimentation tank (300) has a water inlet (3000) and a drain outlet (3001), wherein the drain outlet (3001) of the sedimentation tank (300) is connected to the wastewater inlet (1000) of the filter tank (100) via a connecting pipe (303), and a plurality of partitions (301) are fixedly arranged in the sedimentation tank (300), wherein the plurality of partitions (301) divide the interior of the filter tank (100) into a water passage (302) connecting the water inlet (3000) and the drain outlet (3001).

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