Neodymium iron boron waste extraction liquid auxiliary filtering device

Abstract

This invention relates to the field of waste processing, and more particularly to an auxiliary filtration device for NdFeB waste extract. It provides an auxiliary filtration device for NdFeB waste extract that enables stratified filtration of the extract, multiple filtrations of extracts with high impurity content, and easy cleaning of the filter screen. The device includes a base, a mounting frame, and a sedimentation tank; the mounting frame is fixed to the top of the base, and the sedimentation tank is mounted on the top of the mounting frame. Through the auxiliary and cleaning mechanisms, the valve pipe is positioned slightly above the sedimentation tank, allowing the cleaner portion of the extract to flow into the valve pipe first. Simultaneously, the rotation of the crank rocker causes the L-shaped support frame to reciprocate, which in turn drives the cleaning scraper to scrape the filter screen frame back and forth. This effectively prevents premature clogging of the filter screen due to lack of timely cleaning, thus preventing impurity buildup and achieving the effect of stratified filtration of the extract and secondary filtration of extracts with high impurity content.

Description

Technical Field

[0001] This invention relates to the field of waste processing, and in particular to an auxiliary filtration device for NdFeB waste extract. Background Technology

[0002] Sintered NdFeB permanent magnets possess excellent performance and are widely used in automobiles, home appliances, wind power, and consumer electronics, making them one of the most important types of permanent magnet materials on the market. The production process of sintered NdFeB generates a large amount of production waste. Simultaneously, an increasing number of electromechanical equipment containing NdFeB magnets are becoming obsolete, also generating substantial amounts of NdFeB waste. Since rare earth resources are non-renewable, using economical and effective methods to recycle the valuable substances in NdFeB waste can create economic value, conserve resources, and reduce environmental pollution.

[0003] During the recycling process, NdFeB waste needs to be mixed with organic acids to obtain an extract. The extract then needs to be filtered. Existing equipment is prone to clogging of the filter screen due to the large amount of impurities inside the extract. Moreover, most of the filter screens cannot be disassembled and are difficult to clean. At the same time, the filtration speed is slow and the filtration efficiency is low. When the filter screen is clogged, it needs to be cleaned manually. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, an auxiliary filtration device for NdFeB waste extract is provided, which can perform layered filtration of the extract, multiple filtrations of extracts with many impurities, and facilitate the cleaning of the filter screen.

[0005] The technical implementation of this invention is as follows: an auxiliary filtration device for NdFeB waste extract liquid includes a base, a mounting frame, a sedimentation tank, a valve pipe, a discharge pipe, a sliding baffle, a filter frame, a collection tank, an auxiliary mechanism, and a cleaning mechanism. The mounting frame is fixedly connected to the top of the base, and the sedimentation tank is installed on the top of the mounting frame. A valve pipe is fixedly connected to the left edge of the top of the sedimentation tank, and the discharge pipe is fixedly connected to the bottom of the sedimentation tank. A sliding baffle is slidably installed at the connection between the discharge pipe and the sedimentation tank, and the sliding baffle is located at the top of the discharge pipe. A filter frame is fixedly connected to the middle of the mounting frame, and a collection tank is also installed at the bottom of the mounting frame. The bottom of the collection tank is in contact with the top of the base, and the collection tank corresponds to the filter frame. An auxiliary mechanism for filtering the extract liquid is also provided on the discharge pipe, and a cleaning mechanism for cleaning impurities is also provided at the discharge pipe.

[0006] Optionally, the auxiliary mechanism includes a cleaning box, a cover plate, a guide tube, a filter screen frame, a fixed seat, and a locking pin. The cleaning box is fixedly connected to the bottom of the discharge pipe. The cover plate is rotatably installed at the top right edge of the cleaning box. The guide tube is fixedly connected to the center of the bottom of the cleaning box. The filter screen frame is fixedly connected to the top inside the cleaning box. Fixed seats are symmetrically fixed to the right edge of the top of the cleaning box. Locking pins are slidably installed in the fixed seats on both the front and rear sides. The bottom of the locking pin penetrates the top of the cleaning box and contacts the edge of the cover plate.

[0007] Optionally, the cleaning mechanism includes a cleaning scraper, a slide bar, an L-shaped support frame, a servo motor, and a crank rocker arm. The cleaning scraper is installed inside the cleaning box. The slide bar is fixedly connected to the left side of the cleaning scraper at intervals. The cleaning scraper is slidably installed inside the cleaning box via the slide bar. The slide bar extends to the outside of the cleaning box. The ends of the slide bar are fixedly connected to an L-shaped support frame, which is located at the left edge of the cleaning box. A servo motor is installed at the rear of the cleaning box. The output shaft of the servo motor is fixedly connected to a crank rocker arm via a coupling. One end of the crank rocker arm is fixedly connected to the output shaft of the servo motor, and the other end is slidably installed inside the L-shaped support frame.

[0008] Optionally, it also includes an unlocking mechanism, which includes a sliding support, an upper inclined extrusion rod, a lower inclined extrusion rod, a pressure spring, and a top rod. Sliding supports are symmetrically fixed at the center of the top edges on both the front and rear sides of the cleaning box. An upper inclined extrusion rod is slidably installed inside each sliding support and contacts the L-shaped support frame. A lower inclined extrusion rod is fixed to each locking pin and contacts the top of the cleaning box. One end of each lower inclined extrusion rod is fixed to the locking pin, and the other end extends towards the upper inclined extrusion rod, contacting the upper inclined extrusion rod. A pressure spring is provided between the lower inclined extrusion rod and the fixed seat, and the pressure spring is wound around the fixed pin. Top rods are symmetrically fixed to the right side of the cleaning scraper, and the top rods correspond to the direction of the cover plate.

[0009] Optionally, it also includes a lifting mechanism, which includes a sloping baffle and a telescopic spring. The sloping baffle is installed at the discharge pipe inside the impurity removal box. One end of the sloping baffle is slidably mounted on the cleaning scraper, and the other end extends through to the outside of the left side of the impurity removal box. A telescopic spring is provided at the sliding point between the sloping baffle and the cleaning scraper.

[0010] Optionally, it also includes a pushing mechanism, which includes a sliding frame, a slider, a cleaning brush, and an L-shaped connecting frame. The sliding frame is slidably installed inside the filter frame. A slider is fixed to the top left edge of the sliding frame. The sliding frame is slidably installed on the filter frame via the slider. A cleaning brush is fixed to the bottom left side of the filter frame. L-shaped connecting frames are fixedly connected at intervals inside the sliding frame. One end of the L-shaped connecting frame is fixed to the sliding frame, and the other end is slidably connected to the end of the L-shaped support frame.

[0011] Optionally, it also includes a sliding frame and a collection frame. The sliding frame is fixedly connected to the right side of the waste removal box. The sliding frame corresponds to the cover plate, and the collection frame is slidably installed inside the sliding frame.

[0012] Optionally, it also includes a handle, with the handle fixed to the collection frame.

[0013] Optionally, a torsion spring is provided at the rotation point between the cover plate and the impurity removal box.

[0014] Optionally, the handle is a rubber handle.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention, through the setting of auxiliary and cleaning mechanisms, positions the valve pipe slightly above the sedimentation tank. The cleaner portion of the extract flows into the valve pipe first. Simultaneously, when the crank rocker rotates, the L-shaped support frame reciprocates left and right, thereby driving the cleaning scraper in the impurity removal box to scrape the filter screen frame back and forth. This effectively prevents the filter screen from clogging prematurely due to lack of timely cleaning, thus affecting the filtration effect. It achieves the effect of stratified filtration of the extract and secondary filtration of extracts with more impurities.

[0017] 2. The present invention, through the push-open mechanism, allows the L-shaped support frame to reciprocate under the action of the servo motor. Since its two ends are connected to the L-shaped connecting frame, the L-shaped connecting frame will also move together during its reciprocating motion, thereby causing the sliding frame to slide back and forth on the filter frame. Since the cleaning brush at its bottom is in contact with the filter frame, the back and forth sliding will also drive the cleaning brush to clean the impurities remaining on the filter frame. At the same time, it can also sweep the impurities accumulated at the landing points of the valve pipe and the discharge pipe out of the filter frame. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the base, mounting bracket, sedimentation tank, and valve pipe of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the discharge pipe and sliding baffle of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the auxiliary mechanism, the impurity removal box, the cover plate, and the conduit of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the auxiliary mechanism, filter frame, fixing seat, and locking pin of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the cleaning mechanism, slide bar, L-shaped support frame, and servo motor of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the cleaning mechanism, cleaning scraper, and crank rocker arm of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the unlocking mechanism, sliding support, upper inclined extrusion rod, and lower inclined extrusion rod of the present invention.

[0026] Figure 9This is a partially enlarged schematic diagram of point A in the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the lifting mechanism and the inclined baffle of the present invention.

[0028] Figure 11 This is a three-dimensional structural diagram of the lifting mechanism and telescopic spring of the present invention.

[0029] Figure 12 This is a three-dimensional structural diagram of the pushing mechanism, sliding frame, and slider of the present invention.

[0030] Figure 13 This is a three-dimensional structural diagram of the push-open mechanism, cleaning brush, and L-shaped connecting frame of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the sliding frame, material collection frame, and handle of the present invention.

[0032] The meanings of the reference numerals in the diagram are as follows: 1: Base, 2: Mounting bracket, 3: Sedimentation tank, 4: Valve pipe, 5: Discharge pipe, 51: Sliding baffle, 6: Filter frame, 7: Collection tank, 8: Auxiliary mechanism, 801: Impurity removal box, 802: Cover plate, 803: Guide tube, 804: Filter screen frame, 805: Fixed seat, 806: Locking pin, 9: Cleaning mechanism, 901: Cleaning scraper, 902: Slide rod, 903: L-shaped support frame, 904: Servo motor Machine, 905: Crank rocker arm, 10: Unlocking mechanism, 101: Sliding support, 102: Upper inclined extrusion rod, 103: Lower inclined extrusion rod, 104: Pressure spring, 105: Top rod, 11: Lifting mechanism, 111: Inclined baffle, 112: Telescopic spring, 12: Push-opening mechanism, 121: Sliding frame, 122: Slider, 123: Cleaning brush, 124: L-shaped connecting frame, 13: Sliding frame, 14: Collection frame, 15: Handle. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0034] Example 1

[0035] An auxiliary filtration device for NdFeB waste extract, such as Figures 1-7As shown, the system includes a base 1, a mounting frame 2, a sedimentation tank 3, a valve pipe 4, a discharge pipe 5, a sliding baffle 51, a filter frame 6, a collection tank 7, an auxiliary mechanism 8, and a cleaning mechanism 9. The mounting frame 2 is fixed to the top of the base 1, and the sedimentation tank 3 is mounted on the top of the mounting frame 2. The valve pipe 4 is fixed to the left edge of the top of the sedimentation tank 3, and the discharge pipe 5 is fixed to the bottom of the sedimentation tank 3. A sliding baffle 51 is slidably installed at the connection between the discharge pipe 5 and the sedimentation tank 3, and the sliding baffle 51 is located at the top of the discharge pipe 5. The filter frame 6 is fixed to the middle of the mounting frame 2, and the collection tank 7 is also installed at the bottom of the mounting frame 2. The bottom of the collection tank 7 is in contact with the top of the base 1, and the collection tank 7 corresponds to the filter frame 6. The discharge pipe 5 is also equipped with an auxiliary mechanism 8 for filtering the extract, and the discharge pipe 5 is also equipped with a cleaning mechanism 9 for cleaning impurities.

[0036] like Figure 1 , Figure 4 and Figure 5 As shown, the auxiliary mechanism 8 includes a cleaning box 801, a cover plate 802, a guide tube 803, a filter frame 804, a fixed seat 805, and a locking pin 806. The cleaning box 801 is fixedly connected to the bottom of the discharge pipe 5. The cover plate 802 is rotatably installed at the top right edge of the cleaning box 801. The guide tube 803 is fixedly connected to the center of the bottom of the cleaning box 801. The filter frame 804 is fixedly connected to the top inside the cleaning box 801. Fixed seats 805 are symmetrically fixed to the front and back right edge of the top of the cleaning box 801. Locking pins 806 are slidably installed in the fixed seats 805 on both the front and back sides. The bottom of the locking pin 806 penetrates the top of the cleaning box 801 and contacts the edge of the cover plate 802.

[0037] like Figure 1 , Figure 6 and Figure 7 As shown, the cleaning mechanism 9 includes a cleaning scraper 901, a slide bar 902, an L-shaped support frame 903, a servo motor 904, and a crank rocker arm 905. The cleaning scraper 901 is installed inside the impurity removal box 801. The slide bar 902 is fixedly connected to the left side of the cleaning scraper 901 at intervals. The cleaning scraper 901 is slidably installed inside the impurity removal box 801 through the slide bar 902. The slide bar 902 extends to the outside of the impurity removal box 801. The ends of the slide bar 902 are all fixedly connected to the L-shaped support frame 903. The L-shaped support frame 903 is located at the left edge of the impurity removal box 801. The servo motor 904 is installed on the rear side of the impurity removal box 801. The output shaft of the servo motor 904 is fixedly connected to the crank rocker arm 905 through a coupling. One end of the crank rocker arm 905 is fixedly connected to the output shaft of the servo motor 904, and the other end is slidably installed inside the L-shaped support frame 903.

[0038] When filtering NdFeB waste extract using this device, the NdFeB waste extract to be filtered is poured into sedimentation tank 3. After standing for a period of time, most of the impurities in the extract will settle to the bottom. Then, valve pipe 4 is opened. Since valve pipe 4 is located slightly above sedimentation tank 3, the cleaner portion of the extract will flow into valve pipe 4 first and then be guided to the filter frame 6 below. When the extract containing impurities passes through the filter screen on filter frame 6, the impurities are blocked by the filter screen, and the filtered extract will slowly drip down to the bottom of filter frame 6. In the collection tank 7, after the relatively clean extract in the upper part of the sedimentation tank 3 has been filtered, the valve pipe 4 is closed, and then the sliding baffle 51 at the discharge pipe 5 is removed to begin filtering the extract with more impurities in the lower part of the sedimentation tank 3. After the sliding baffle 51 is removed, the extract with more impurities will flow to the impurity removal box 801 below. Since the impurity removal box 801 is equipped with a filter frame 804, the extract with more impurities will be filtered once by the filter frame 804 in the impurity removal box 801, and then flow through the conduit 803 at the bottom to the filter frame 6 for secondary filtration. This process can... This process ensures cleaner filtration of extracts with higher impurity content. Furthermore, because it involves secondary filtration, impurities do not concentrate on a single filter screen, effectively reducing premature clogging of filter frames 804 and 6. After filtering the extract with higher impurity content, remove the locking pin 806 and then rotate the cover plate 802. Due to the inclined installation position of the filter frame 804, impurities will slide to the side with the greater height difference. When the cover plate 802 is opened, the impurities will automatically slide out of the slag removal box, which is convenient. Simultaneously, the servo motor 904 is activated when cleaning the filter frame 804. 4. During operation, it will drive the crank rocker 905 on its output shaft to rotate. Since one end of the crank rocker 905 is fixed to the output shaft, it rotates in an eccentric motion. And since the other end of the crank rocker 905 is slidably set in the L-shaped support frame 903, the rotation will cause the L-shaped support frame 903 to reciprocate left and right. This will drive the cleaning scraper 901 in the impurity removal box 801 to scrape the filter screen frame 804 back and forth, effectively preventing the filter screen from being blocked prematurely if it is not cleaned in time, thus affecting the filtration effect. This achieves the effect of layered filtration of the extract and secondary filtration of extract with more impurities.

[0039] Example 2

[0040] Based on Example 1, such as Figure 1 , Figure 8 and Figure 9As shown, it also includes an unlocking mechanism 10, which includes a sliding support 101, an upper inclined surface pressing rod 102, a lower inclined surface pressing rod 103, a pressure spring 104, and a top rod 105. Sliding supports 101 are symmetrically fixed at the center of the top edges on both the front and rear sides of the impurity removal box 801. Upper inclined surface pressing rods 102 are slidably installed inside each sliding support 101, and the upper inclined surface pressing rods 102 are in contact with the L-shaped support frame 903. Lower inclined surface pressing rods 103 are fixed to each locking pin 806. The squeezing rod 103 is in contact with the top of the impurity removal box 801. One end of the lower inclined squeezing rod 103 is fixed to the locking pin 806, and the other end extends towards the upper inclined squeezing rod 102. The lower inclined squeezing rod 103 is in contact with the upper inclined squeezing rod 102. A pressure spring 104 is provided between the lower inclined squeezing rod 103 and the fixed seat 805. The pressure spring 104 is wound around the fixed pin. A top rod 105 is symmetrically fixed to the right side of the cleaning scraper 901. The top rod 105 is in the same direction as the cover plate 802.

[0041] like Figure 1 , Figure 10 and Figure 11 As shown, it also includes a lifting mechanism 11, which includes a sloped baffle 111 and a telescopic spring 112. A sloped baffle 111 is installed at the discharge pipe 5 inside the impurity removal box 801. One end of the sloped baffle 111 is slidably installed on the cleaning scraper 901, and the other end extends through to the outside of the left side of the impurity removal box 801. A telescopic spring 112 is provided at the sliding point between the sloped baffle 111 and the cleaning scraper 901.

[0042] like Figure 1 , Figure 12 and Figure 13 As shown, it also includes a pushing mechanism 12, which includes a sliding frame 121, a slider 122, a cleaning brush 123, and an L-shaped connecting frame 124. The sliding frame 121 is slidably installed inside the filter frame 6. The slider 122 is fixedly connected to the top left edge of the sliding frame 121. The sliding frame 121 is slidably installed on the filter frame 6 through the slider 122. The cleaning brush 123 is fixedly connected to the bottom left side of the filter frame 6. The L-shaped connecting frame 124 is fixedly connected at intervals inside the sliding frame 121. One end of the L-shaped connecting frame 124 is fixedly connected to the sliding frame 121, and the other end is slidably connected to the end of the L-shaped support frame 903.

[0043] like Figure 14 As shown, it also includes a sliding frame 13 and a collection frame 14. The sliding frame 13 is fixedly connected to the right side of the impurity removal box 801. The sliding frame 13 corresponds to the cover plate 802. The collection frame 14 is slidably installed inside the sliding frame 13.

[0044] like Figure 14 As shown, it also includes a handle 15, which is fixedly attached to the material collection frame 14.

[0045] like Figure 5 As shown, a torsion spring is provided at the rotation point of the cover plate 802 and the impurity removal box 801.

[0046] like Figure 14 As shown, the handle 15 is a rubber handle 15.

[0047] When the cleaning scraper 901 scrapes back and forth under the action of the servo motor 904, the upper inclined extrusion rod 102 contacts the L-shaped support frame 903. When the L-shaped support frame 903 makes a swaying reciprocating motion, it will squeeze the upper inclined extrusion rod 102, causing the upper inclined extrusion rod 102 to squeeze the lower inclined extrusion rod 103. When the lower inclined extrusion rod 103 is squeezed, it will slightly lift the locking pin 806 that contacts the cover plate 802. When the cover plate 802 is no longer blocked by the locking pin 806, it can be squeezed by the top rod 105 fixed on the cleaning scraper 901 and rotate easily. Then the compression spring will reset the lower inclined extrusion rod 103, so that when the cleaning scraper 901 scrapes the impurities on the filter frame 804, it can push the impurities out of the impurity removal box 801 without manually opening the cover plate 802.

[0048] When the servo motor 904 starts, the cleaning scraper 901 will scrape the filter frame 804 back and forth. Since the cleaning scraper 901 is equipped with a sloping baffle 111, the sloping baffle 111 will temporarily block the discharge pipe 5 from discharging material when scraping. At the same time, since the filter frame 804 is installed at an angle, the height difference on both sides is not consistent. When the cleaning scraper 901 moves to the side with the larger height difference, the telescopic spring 112 at its bottom will return to the stretched state when it moves to the side with the larger height difference, thereby lifting the sloping baffle 111 and making it fit more closely with the discharge pipe 5. At the same time, it is possible to clean the filter frame 804 during the filtration process without waiting for the filtration to be completed.

[0049] When the L-shaped support frame 903 reciprocates under the action of the servo motor 904, since its two ends are connected to the L-shaped connecting frame 124 respectively, it will also drive the L-shaped connecting frame 124 to move together when it reciprocates, thereby causing the sliding frame 121 to slide back and forth on the filter frame 6. Since the cleaning brush 123 at its bottom is in contact with the filter frame 6, it will also drive the cleaning brush 123 to clean the impurities remaining on the filter frame 6 when sliding back and forth. At the same time, it can also sweep the impurities accumulated at the landing points of the valve pipe 4 and the discharge pipe 5 out of the filter frame 6.

[0050] When the cleaning scraper 901 scrapes the impurities on the filter screen frame 804 out of the impurity removal box 801, the scraped impurities will not fall directly to the ground, but will fall into the collection box 14 because the sliding frame 13 and the collection box 14 are installed on its right side. When too many impurities accumulate in the collection box 14, the staff can remove it and clean it uniformly.

[0051] When workers remove the collection frame 14 for cleaning, they can easily remove the collection frame 14, which is slidably mounted on the sliding frame 13, using the handle fixed to the collection frame 14.

[0052] A torsion spring is provided at the rotation point of the cover plate 802 and the impurity removal box 801, so that the cover plate 802 does not need to be closed manually after it is opened, which is more convenient.

[0053] The rubber handle 15 increases the coefficient of friction and prevents the material from slipping from the hand when removing the aggregate frame 14.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An auxiliary filtration device for NdFeB waste extract, comprising a base (1), a mounting frame (2), a sedimentation tank (3), a valve pipe (4), a discharge pipe (5), a sliding baffle (51), a filter frame (6), and a collection tank (7), wherein the mounting frame (2) is fixedly connected to the base (1), the sedimentation tank (3) is mounted on the mounting frame (2), the valve pipe (4) is fixedly connected to the sedimentation tank (3), the discharge pipe (5) is fixedly connected to the sedimentation tank (3), the sliding baffle (51) is slidably mounted on the discharge pipe (5), the filter frame (6) is fixedly connected to the mounting frame (2), and the collection tank (7) is also mounted on the mounting frame (2), characterized in that, It also includes an auxiliary mechanism (8) and a cleaning mechanism (9). The discharge pipe (5) is also equipped with an auxiliary mechanism (8) for filtering the extract, and the discharge pipe (5) is also equipped with a cleaning mechanism (9) for cleaning impurities. The auxiliary mechanism (8) includes a cleaning box (801), a cover plate (802), a guide tube (803), a filter frame (804), a fixed seat (805), and a locking pin (806). The cleaning box (801) is fixedly connected to the discharge pipe (5). The cover plate (802) is rotatably installed on the cleaning box (801). The guide tube (803) is fixedly connected to the cleaning box (801). The filter frame (804) is fixedly connected inside the cleaning box (801). The fixed seat (805) is fixedly connected to the cleaning box (801). The locking pin (806) is slidably installed inside the fixed seat (805). The cleaning mechanism (9) includes a cleaning scraper (901), a slide bar (902), an L-shaped support frame (903), a servo motor (904), and a crank rocker (905). The cleaning scraper (901) is installed in the impurity removal box (801). The slide bar (902) is fixedly connected to the cleaning scraper (901). The L-shaped support frame (903) is fixedly connected to the slide bar (902). The servo motor (904) is installed on the impurity removal box (801). The output shaft of the servo motor (904) is fixedly connected to the crank rocker (905) through a coupling. The crank rocker (905) is slidably installed in the L-shaped support frame (903). It also includes an unlocking mechanism (10), a sliding support (101) fixedly connected to the cleaning box (801), an upper inclined extrusion rod (102) slidably installed inside the sliding support (101), a lower inclined extrusion rod (103) fixedly connected to the locking pin (806), the lower inclined extrusion rod (103) fixedly connected to the locking pin (806), a pressure spring (104) provided between the lower inclined extrusion rod (103) and the fixed seat (805), and a top rod (105) fixedly connected to the cleaning scraper (901). It also includes a lifting mechanism (11), which includes a sloping baffle (111) and a telescopic spring (112). A sloping baffle (111) is installed at the discharge pipe (5) inside the impurity removal box (801), and a telescopic spring (112) is provided between the sloping baffle (111) and the cleaning scraper (901). It also includes a push-opening mechanism (12), which includes a sliding frame (121), a slider (122), a cleaning brush (123) and an L-shaped connecting frame (124). The sliding frame (121) is slidably installed inside the filter frame (6). The slider (122) is fixedly connected to the sliding frame (121). The cleaning brush (123) is fixedly connected to the filter frame (6). The L-shaped connecting frame (124) is fixedly connected to the sliding frame (121). The L-shaped connecting frame (124) is slidably connected to the L-shaped support frame (903).

2. The neodymium iron boron waste extraction liquid auxiliary filtering device according to claim 1, characterized in that, It also includes a sliding frame (13) and a collection frame (14). The sliding frame (13) is fixedly connected to the impurity removal box (801), and the collection frame (14) is slidably installed inside the sliding frame (13).

3. The neodymium iron boron waste extraction liquid auxiliary filtering device according to claim 2, characterized in that, It also includes a handle (15), and the material collection frame (14) is fixed with a handle (15).

4. The neodymium iron boron waste extraction liquid auxiliary filtering device according to claim 3, characterized in that, A torsion spring is provided at the rotation point of the cover plate (802) and the impurity removal box (801).

5. The auxiliary filtration device for NdFeB waste extract liquid according to claim 4, characterized in that, The handle (15) is a rubber handle (15).

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