A NdFeB waste pretreatment and cleaning device

Abstract

The present invention discloses a pre-treatment and cleaning device for NdFeB waste, belonging to the technical field of cleaning equipment, comprising a cleaning box, the cleaning box being fixedly mounted on a base frame, the cleaning box being provided with a feed port and a discharge port at the upper and lower ends thereof, a filter screen being provided inside the cleaning box, a water inlet being provided inside the feed port, a cleaning mechanism being provided inside the cleaning box, and a scraping mechanism being provided on the cleaning mechanism. The invention can comprehensively and effectively clean NdFeB waste by staggered internal and external cleaning brushes, and can improve the recovery rate of waste by arranging an electromagnet assembly to adsorb small particles of waste, and can simultaneously perform cleaning and adsorption, thereby improving processing efficiency. An electric push rod is used to push an annular scraper to slide on the electromagnet assembly, scraping off small particles of NdFeB waste adsorbed on the electromagnet assembly, thereby achieving automatic cleaning of the electromagnet assembly and discharge of waste.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning equipment, and in particular relates to a NdFeB waste pretreatment and cleaning device. Background Art

[0002] As a permanent magnet material with excellent performance, NdFeB has been widely used in many fields such as electronic equipment, new energy vehicles, wind power generation, etc. due to its high remanence, high coercive force and high magnetic energy product. However, in the production and manufacturing of NdFeB permanent magnet materials, processing procedures such as cutting and grinding will generate a large amount of scrap. At the same time, on the application side, as the equipment using NdFeB magnets reaches the end of its service life or fails, a large amount of discarded NdFeB components will also be generated. The NdFeB scrap from these sources contains rich valuable components such as rare earth elements and has extremely high recycling and reuse value.

[0003] The problem with the existing technology is that the NdFeB waste is first cleaned, the waste water is poured out, and finally the fine NdFeB waste in the waste water is adsorbed by a roller. It is impossible to achieve cleaning and adsorption at the same time, making the treatment process cumbersome, time-consuming and inefficient. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides a NdFeB waste pretreatment and cleaning device, which has the advantages of simultaneous cleaning and adsorption of fine waste, short time consumption and high efficiency. It solves the problem that the existing device needs to adsorb fine waste in the wastewater after cleaning, resulting in a cumbersome treatment process, long time consumption and low efficiency.

[0005] The present invention is achieved as follows: a NdFeB waste pretreatment and cleaning device includes a cleaning box, which is fixedly mounted on a base frame, with a feed port and a discharge port respectively provided at the upper and lower ends of the cleaning box, a water inlet pipe provided in the feed port, a cleaning mechanism provided inside the cleaning box, and a scraping mechanism provided on the cleaning mechanism; the cleaning mechanism includes an outer ring and an inner ring, the outer ring and the inner ring are rotatably mounted in the cleaning box, a plurality of outer cleaning brushes and inner cleaning brushes are respectively circumferentially arranged on the outer ring and the inner ring, the outer cleaning brushes and the inner cleaning brushes are staggered, and an electromagnet assembly is fixedly mounted in the middle of the cleaning box.

[0006] As a preferred embodiment of the present invention, a filter screen is provided inside the cleaning box, a water flow channel is provided between the filter screen and the inner wall of the cleaning box, and an openable discharge net is provided at the bottom of the filter screen.

[0007] As a preferred embodiment of the present invention, one end of the electromagnet assembly is fixedly connected to a fixed seat, one end of the inner ring is fixedly connected to a rotating seat, the rotating seat is rotatably sleeved on the fixed seat, a transmission ring gear is fixedly installed on the rotating seat, one side of the transmission ring gear is meshed with a first gear, and the first gear is fixedly connected to the output end of the motor; one end of the cleaning box is fixedly connected to a fixed frame, and the fixed seat and the motor are both fixedly installed on the fixed frame.

[0008] As a preferred embodiment of the present invention, the scraping mechanism includes an electric push rod and a telescopic rod, which are respectively fixedly installed on both sides of the cleaning box, and the output end of the electric push rod and one end of the telescopic rod are fixedly connected with a connecting plate; a guide rod is fixedly connected to the middle part of the connecting plate, and the guide rod slides through one side of the cleaning box, and the end is fixedly connected to an annular scraper, and the annular scraper is slidably mounted on the electromagnet assembly.

[0009] As a preferred embodiment of the present invention, a first shifting ring is rotatably connected to the outer side of the annular scraper, a first accommodating hole is provided inside the first shifting ring, and the outer cleaning brush and the inner cleaning brush are both located in the first accommodating hole.

[0010] As a preferred embodiment of the present invention, the electromagnet assembly includes a cylinder and a magnet block arranged inside the cylinder, and an external thread is provided on the outer surface of the cylinder; the scraper mechanism includes a threaded cylinder and a second shift ring, the threaded cylinder and the second shift ring are fixedly connected, and a second accommodating hole is provided inside the second shift ring, and the outer cleaning brush and the inner cleaning brush are both located in the second accommodating hole.

[0011] As a preferred embodiment of the present invention, a discharge channel is provided inside the electromagnet assembly, and a strip hole communicating with the discharge channel is provided on the electromagnet assembly, and the strip hole is located on the side of the electromagnet assembly.

[0012] As a preferred embodiment of the present invention, the outer surface of the inner ring is provided with an outer gear ring, the inner surface of the outer ring is provided with an inner gear ring, and the inner side of the end wall of the cleaning box is rotatably connected to a second gear, which is engaged with the outer gear ring and the inner gear ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention can comprehensively and effectively clean NdFeB waste by staggered inner and outer cleaning brushes. By arranging an electromagnet component to adsorb small particles of waste, the recovery rate of waste can be improved. Moreover, cleaning and adsorption are carried out simultaneously, thereby improving processing efficiency.

[0015] 2. The present invention drives the connecting plate and the guide rod to move by the electric push rod, thereby pushing the annular scraper to slide on the electromagnet assembly, scraping off the small particles of NdFeB waste adsorbed on the electromagnet assembly, realizing automatic cleaning of the electromagnet assembly and unloading of the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Example 1 of the present invention;

[0017] Figure 2 This is a schematic diagram of a first partial cross-sectional three-dimensional structure of Example 1 of the present invention;

[0018] Figure 3 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of Example 1 of the present invention;

[0019] Figure 4 For Example 1 of the present invention Figure 3 A magnified view of the structure at center A;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the cleaning mechanism of Example 1 of the present invention;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the annular scraper part of Example 1 of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall three-dimensional structure of Example 2 of the present invention in which the cleaning box is omitted;

[0023] Figure 8 For Example 2 of the present invention Figure 7 A magnified view of the structure at point B in the middle;

[0024] Figure 9 This is a schematic diagram of the overall three-dimensional structure of Example 3 of the present invention in which the cleaning box is omitted;

[0025] Figure 10 For Example 3 of the present invention Figure 9 A magnified view of the structure at point C in the middle;

[0026] Figure 11 Schematic diagram of the inner wall structure of the cleaning box according to embodiment 4 of the present invention;

[0027] Figure 12 For Example 4 of the present invention Figure 11 Enlarged view of the structure at point D in the middle.

[0028] In the figure: 1. cleaning box; 11. feed port; 12. discharge port; 13. filter screen; 14. water flow channel; 15. discharge screen; 2. cleaning mechanism; 21. outer ring; 22. inner ring; 23. outer cleaning brush; 24. inner cleaning brush; 25. electromagnet assembly; 26. fixing seat; 27. fixing frame; 28. motor; 29. ​​rotating seat; 210. transmission ring gear; 211. first gear; 3. scraper mechanism; 31. electric push rod; 32. connecting plate; 33. telescopic rod; 34. annular scraper; 35. guide rod; 4. water inlet pipe; 5. base frame; 6. first dial ring; 61. first accommodating hole; 36. threaded barrel; 37. second dial ring; 38. second accommodating hole; 251. discharge channel; 252. strip hole; 71. outer ring gear; 72. inner ring gear; 73. second gear; 74. dial plate. DETAILED DESCRIPTION

[0029] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0030] The structure of the present invention is described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figures 1 to 5 As shown, an embodiment of the present invention provides a NdFeB waste pretreatment and cleaning device, including a cleaning box 1, which is fixedly mounted on a base frame 5, and a feed port 11 and a discharge port 12 are respectively provided at the upper and lower ends of the cleaning box 1, a filter screen 13 is provided inside the cleaning box 1, a water inlet pipe 4 is provided in the feed port 11, a cleaning mechanism 2 is provided inside the cleaning box 1, and a scraping mechanism 3 is provided on the cleaning mechanism 2.

[0033] Furthermore, a water flow channel 14 is provided between the filter screen 13 and the inner wall of the cleaning box 1 , and an openable discharge net 15 is provided at the bottom of the filter screen 13 .

[0034] In this application, the water inlet pipe 4 is connected to the external water supply system. The water inlet pipe 4 includes a main pipe and several branch pipes. A nozzle is provided at the end of each branch pipe. The NdFeB waste enters the cleaning box 1 from the feed port 11. The water inlet pipe 4 injects water into the cleaning box 1. The cleaning mechanism 2 cleans the waste. The cleaned waste is filtered through the filter screen 13. The wastewater flows out through the water flow channel 14. The discharge net 15 is opened to discharge the cleaned waste.

[0035] Furthermore, the cleaning mechanism 2 includes an outer ring 21 and an inner ring 22, which are rotatably mounted within the cleaning box 1 and fixedly connected to each other. A plurality of outer cleaning brushes 23 and inner cleaning brushes 24 are circumferentially arranged on the outer ring 21 and inner ring 22, respectively. The outer cleaning brushes 23 and inner cleaning brushes 24 are staggered to more comprehensively clean the waste and improve the cleaning effect. One end of the inner ring 22 is fixedly connected to a rotating seat 29, on which a transmission ring gear 210 is fixedly mounted. One side of the transmission ring gear 210 is meshedly connected to a first gear 211, which is fixedly connected to the output end of the motor 28. The working motor 28 drives the first gear 211 and the transmission ring gear 210 to rotate, causing the inner ring 22 and the outer ring 21 to drive the inner cleaning brushes 24 and the outer cleaning brushes 23 to rotate, thereby stirring and dispersing the NdFeB waste and cleaning it, thereby improving cleaning efficiency and enhancing the cleaning effect.

[0036] Furthermore, an electromagnet assembly 25 is fixedly installed in the middle of the cleaning box 1, one end of the electromagnet assembly 25 is fixedly connected to a fixed seat 26, a rotating seat 29 is rotatably sleeved on the fixed seat 26, and one end of the cleaning box 1 is fixedly connected to a fixed frame 27, and the fixed seat 26 and the motor 28 are both fixedly installed on the fixed frame 27.

[0037] The electromagnet assembly 25 is turned on to adsorb small particles of NdFeB waste during the cleaning process, thereby further improving the recovery rate of the waste and achieving simultaneous adsorption of impurities and cleaning, thereby shortening the overall cleaning time.

[0038] Furthermore, the scraping mechanism 3 includes an electric push rod 31 and a telescopic rod 33, which are respectively fixedly installed on both sides of the cleaning box 1. The output end of the electric push rod 31 and one end of the telescopic rod 33 are fixedly connected to a connecting plate 32, and a guide rod 35 is fixedly connected to the middle part of the connecting plate 32. The guide rod 35 slides through one side of the cleaning box 1, and the end is fixedly connected to an annular scraper 34, which is slidably mounted on the electromagnet assembly 25.

[0039] After cleaning is completed, the electromagnet assembly 25 is turned off and the electric push rod 31 is started. The electric push rod 31 drives the connecting plate 32 and the guide rod 35 to move, thereby pushing the annular scraper 34 to slide on the electromagnet assembly 25, scraping off the NdFeB waste adsorbed on the electromagnet assembly 25, thereby realizing automatic cleaning of the electromagnet assembly 25 and unloading of the waste.

[0040] Example 2

[0041] On the basis of Example 1, the following contents are added: Figures 1-8The annular scraper 34 is rotatably connected to a first shifting ring 6 on its outer side. A first receiving hole 61 is defined within the first shifting ring 6, and both the outer cleaning brush 23 and the inner cleaning brush 24 are located within the first receiving hole 61. When cleaning the electromagnet assembly 25, the annular scraper 34 can simultaneously clean both the outer cleaning brush 23 and the inner cleaning brush 24 through the first shifting ring 6 (the first receiving hole 61 scrapes the outer cleaning brush 23 and the inner cleaning brush 24).

[0042] Example 3

[0043] The difference from Example 1 is that the scraping mechanism 3 is implemented differently, as follows:

[0044] See Figure 9 and Figure 10 The electromagnet assembly 25 includes a cylinder and a magnet block arranged inside the cylinder, and an external thread is provided on the outer surface of the cylinder; the scraper mechanism 3 includes a threaded cylinder 36 and a second shift ring 37, the threaded cylinder 36 and the second shift ring 37 are fixedly connected, and a second accommodating hole 38 is provided inside the second shift ring 37, and the outer cleaning brush 23 and the inner cleaning brush 24 are both located in the second accommodating hole 38.

[0045] Because the electromagnet assembly 25 does not rotate, when the outer and inner cleaning brushes 23 and 24 rotate synchronously, the second shifting ring 37 shifts the threaded barrel 36, thereby achieving axial movement of the threaded barrel 36 and the second shifting ring 37. During this axial movement, the threaded barrel 36 cleans debris from the outer surface of the electromagnet assembly 25, and the second shifting ring 37 cleans debris adhering to the outer and inner cleaning brushes 23 and 24. It should be noted that in this solution, the outer and inner cleaning brushes 23 and 24 are rotated forward several times, then counterclockwise several times, to achieve reciprocating axial movement of the threaded barrel 36 on the electromagnet assembly 25. During this process, the second shifting ring 37 reciprocates the material, improving the cleaning effect.

[0046] Furthermore, the electromagnet assembly 25 is internally provided with a discharge channel 251 and is provided with a strip-shaped hole 252 on the side of the electromagnet assembly 25, which communicates with the discharge channel 251. The strip-shaped hole 252 is located on the side of the electromagnet assembly 25. When the electromagnet is moved, the debris can be moved through the strip-shaped hole 252 and into the discharge channel 251. The end of the discharge channel 251 is connected to the outside world, allowing for regular discharge of impurities from the discharge channel 251. It should be noted that during cleaning, the liquid level must not exceed the strip-shaped hole 252.

[0047] Example 4

[0048] Different from the first embodiment, the outer ring 21 and the inner ring 22 are not fixedly connected, as follows:

[0049] See Figure 2 、 Figure 11 and Figure 12 The outer surface of the inner ring 22 is provided with an outer ring gear 71, and the inner surface of the outer ring 21 is provided with an inner ring gear 72. A second gear 73 is rotatably connected to the inner side of the end wall of the cleaning box 1, and the second gear 73 is meshed with the outer ring gear 71 and the inner ring gear 72. Through this arrangement, the outer ring 21 and the inner ring 22 can rotate in opposite directions, and the NdFeB waste can be moved in opposite directions, thereby improving the cleaning efficiency.

[0050] Furthermore, the outer cleaning brush 23 is rotatably connected to the outer ring 21, and the inner cleaning brush 24 is rotatably connected to the inner ring 22. A shift plate 74 is fixedly connected to the second gear 73, and the shift plate 74 can be attached to the outer cleaning brush 23 and the inner cleaning brush 24. This arrangement not only achieves the above functions, but also allows the inner cleaning brush 24 and the outer cleaning brush 23 to be cleaned simultaneously by the shift plate 74.

[0051] Working principle of the present invention:

[0052] The NdFeB waste enters the cleaning box 1 from the feed port 11, and the water inlet pipe 4 injects cleaning water. The motor 28 drives the outer ring 21 and the inner ring 22 of the cleaning mechanism 2 to rotate, and the outer cleaning brush 23 and the inner cleaning brush 24 clean the waste. At the same time, the electromagnet assembly 25 is energized to adsorb small particles of NdFeB waste. During the cleaning process, water and impurities flow down through the water flow channel 14. After cleaning is completed, the discharge net 15 is opened, and the waste is discharged from the discharge port 12. The electric push rod 31 drives the annular scraper 34 of the scraping mechanism 3 to slide on the electromagnet assembly 25 to scrape off the adsorbed impurity NdFeB waste. In summary: This NdFeB waste pretreatment and cleaning device can comprehensively and effectively clean NdFeB waste through the staggered inner cleaning brush 24 and outer cleaning brush 23. By setting the electromagnet assembly 25 to adsorb small particles of waste, the recovery rate of the waste can be improved. In addition, cleaning and adsorption are carried out simultaneously, which improves the processing efficiency.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A NdFeB waste pretreatment and cleaning device, comprising a cleaning box (1), wherein the cleaning box (1) is fixedly mounted on a base frame (5), wherein the cleaning box (1) is provided with a feed port (11) and a discharge port (12) at the upper and lower ends thereof, respectively, and a water inlet pipe (4) is provided in the feed port (11), characterized in that: A cleaning mechanism (2) is provided inside the cleaning box (1), and a scraping mechanism (3) is provided on the cleaning mechanism (2); the cleaning mechanism (2) comprises an outer ring (21) and an inner ring (22), the outer ring (21) and the inner ring (22) are rotatably mounted in the cleaning box (1), and a plurality of outer cleaning brushes (23) and inner cleaning brushes (24) are circumferentially provided on the outer ring (21) and the inner ring (22), respectively, and the outer cleaning brushes (23) and the inner cleaning brushes (24) are staggered; an electromagnet assembly (25) is fixedly mounted in the middle of the cleaning box (1); A filter screen (13) is provided inside the cleaning box (1), a water flow channel (14) is provided between the filter screen (13) and the inner wall of the cleaning box (1), and an openable discharge screen (15) is provided at the bottom of the filter screen (13); One end of the electromagnet assembly (25) is fixedly connected to a fixed seat (26), one end of the inner ring (22) is fixedly connected to a rotating seat (29), the rotating seat (29) is rotatably sleeved on the fixed seat (26), a transmission ring gear (210) is fixedly mounted on the rotating seat (29), one side of the transmission ring gear (210) is meshedly connected to a first gear (211), and the first gear (211) is fixedly connected to the output end of the motor (28); One end of the cleaning box (1) is fixedly connected to a fixing frame (27), and the fixing seat (26) and the motor (28) are both fixedly mounted on the fixing frame (27); The electromagnet assembly (25) comprises a cylinder and a magnet block arranged inside the cylinder, and an external thread is provided on the outer surface of the cylinder; The scraper mechanism (3) comprises a threaded barrel (36) and a second shifting ring (37), wherein the threaded barrel (36) and the second shifting ring (37) are fixedly connected, and a second receiving hole (38) is provided inside the second shifting ring (37), and the outer cleaning brush (23) and the inner cleaning brush (24) are both located in the second receiving hole (38); A discharge channel (251) is provided inside the electromagnet assembly (25), and a strip hole (252) communicating with the discharge channel (251) is provided on the electromagnet assembly (25), and the strip hole (252) is located on the side of the electromagnet assembly (25).

2. The NdFeB waste pretreatment and cleaning device according to claim 1, wherein: The outer ring (21) is fixedly connected to the inner ring (22).

3. The NdFeB waste pretreatment and cleaning device according to claim 2, wherein: The scraping mechanism (3) comprises an electric push rod (31) and a telescopic rod (33), wherein the electric push rod (31) and the telescopic rod (33) are respectively fixedly mounted on both sides of the cleaning box (1), and the output end of the electric push rod (31) and one end of the telescopic rod (33) are both fixedly connected to a connecting plate (32); A guide rod (35) is fixedly connected to the middle portion of the connecting plate (32). The guide rod (35) slides through one side of the cleaning box (1) and has an annular scraper (34) fixedly connected to its end. The annular scraper (34) is slidably sleeved on the electromagnet assembly (25).

4. The NdFeB waste pretreatment and cleaning device according to claim 3, wherein: The outer side of the annular scraper (34) is rotatably connected to a first shifting ring (6), the interior of the first shifting ring (6) is provided with a first accommodating hole (61), and the outer cleaning brush (23) and the inner cleaning brush (24) are both located in the first accommodating hole (61).

5. The NdFeB waste pretreatment and cleaning device according to claim 1, wherein: The outer surface of the inner ring (22) is provided with an outer gear ring (71), the inner surface of the outer ring (21) is provided with an inner gear ring (72), and the inner side of the end wall of the cleaning box (1) is rotatably connected to a second gear (73), and the second gear (73) is engaged with the outer gear ring (71) and the inner gear ring (72).

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