CN115475444A - Neodymium iron boron waste hydrochloric acid optimal-dissolution washing and filtering device and filtering method thereof - Google Patents

Abstract

The invention relates to the technical field of washing and filtering, and discloses a NdFeB waste waste hydrochloric acid washing and filtering device and a filtering method thereof, including a conveyor belt I, a conveyor belt II is provided at the bottom of the conveyor belt I, and There is a material box, the inner bottom of the material box is provided with a sieve hole, and a discharge plate is slidably connected through the sieve hole, and the two sides of the material box are slidably connected with a fixed support plate through a spring. The middle part of the bottom end of the material box is fixedly connected with a screen, and the two sides of the screen are respectively hinged with an excellent melting box, and the inner walls of the two sides of the excellent melting box are respectively provided with movable chambers opening toward the bottom. The waste materials of different sizes and volumes are conveyed above the conveyor belt I and the conveyor belt II, so that the waste materials can be crushed, so that the volume of the waste materials falling down through the discharge plate can be controlled, so that the waste materials can be soaked completely, and the rare earth in the waste materials can be completely recovered. , to facilitate the crushing of waste and reduce the difficulty of processing.

Description

A kind of NdFeB waste hydrochloric acid excellent solvent washing filter device and its filtering method

technical field

The invention relates to the technical field of washing and filtering, in particular to a washing and filtering device and a filtering method for NdFeB waste hydrochloric acid excellent solution.

Background technique

Neodymium magnets are tetragonal crystals formed of neodymium, iron, and boron. They are widely used in electronic products, such as hard disks, mobile phones, earphones, and battery-powered tools. NdFeB steel itself has relatively high performance, but its properties As brittle as ceramics, because NdFeB waste contains high-priced rare earth elements, high value-added rare earth products such as neodymium oxide, terbium oxide, and dysprosium oxide can be obtained from NdFeB waste, and rare earths are non-renewable strategic resources. Therefore, to recycle NdFeB waste, it is relatively popular to recycle NdFeB waste through the hydrochloric acid method. The waste is optimally dissolved in hydrochloric acid to soak the rare earth into the solution, and then filter and separate the rare earth solution for subsequent treatment. processing to recover rare earths.

In the process of recycling NdFeB waste, the recovered NdFeB waste has different shapes and sizes, which is likely to cause different degrees of excellent solubility in hydrochloric acid, affecting the efficiency and completeness of rare earth immersion in hydrochloric acid solution, resulting in incomplete recycling; at the same time, After soaking in hydrochloric acid, it needs to be manually moved to the filter device, and this process needs to be carried out continuously, which affects the efficiency of filtration and increases the difficulty of the recovery process.

Contents of the invention

Aiming at the deficiencies in the use of the existing NdFeB waste hydrochloric acid washing and filtering device proposed in the background technology, the present invention provides a NdFeB waste hydrochloric acid washing and filtering device and its filtering method, which have washing The advantages of synchronous work of filtration and pressure filtration solve the technical problem of incomplete soaking in hydrochloric acid caused by the inconsistency of the size and shape of the NdFeB waste material proposed in the above background technology.

The present invention provides the following technical proposal: a device for washing and filtering neodymium-iron-boron waste with hydrochloric acid, which includes a conveyor belt I, a conveyor belt II is provided at the bottom of the conveyor belt I, and a material box is provided below the conveyor belt II. The inner bottom of the material box is provided with a sieve hole, and a discharge plate is slidably connected through the sieve hole, and the two sides of the material box are slidably connected with fixed support plates through a spring, and the middle part of the bottom end of the material box is fixed. A screen is connected, and the two sides of the screen are respectively hinged with an excellent melting box, and the inner walls of the two sides of the excellent melting box are respectively provided with movable chambers that open toward the bottom end, and the two ends of the screen extend into the two sides The inner cavity of the movable chamber, and the connection surface between the screen and the melting box is fixedly connected with a flexible plug, the inner top of the movable chamber is fixedly connected with a return spring, and the bottom end of the return spring is fixedly connected with a Party activity board.

Preferably, water holes are provided on both sides of the middle part of the bottom end of the optimal melting box, and the optimal melting box is elastically connected to a cylindrical plug through the water hole, and the bottom of the optimal melting box is fixedly connected to two pillars. A connecting column between the two cylindrical plugs, a connecting column is slidably connected between the two cylindrical plugs, the bottom end of the connecting column is fixedly connected with a pulling plate, and the bottom end of the pulling plate is fixedly connected with a lower filter plate. The bottom end of the connecting column is fixedly connected with a clamping block, and the connecting column limits the lower filter plate through the clamping block, and the bottom end of the cylindrical plug is fixedly connected with a scraper plate through a connecting rope, and the two sides of the lower filter plate pass through The spring is slidingly connected with a fixed head, and one end of the fixed head close to the lower filter plate penetrates through the lower filter plate and is fixedly connected with a limiting column, and the outer side of the limiting column is slidably connected with the inner side of the lower filter plate, and the circumferential direction of the lower filter plate The outer side is slidably connected with a liquid collection tank, and the four corners of the lower filter plate are fixedly connected with support rods. The load-bearing plate is hinged equidistantly, and the side of the force-bearing plate close to the movable plate is provided with a groove matching the outside of the force-bearing plate. The middle part of the force-bearing plate is fixedly connected with a flexible plate, and the flexible plate runs through The movable plate is fixedly connected upward with a force plate vertically slidingly connected with the movable plate, the opposite surface of the force plate and the movable plate is fixedly connected with a fixed spring, and the top of the liquid collection tank is fixedly connected with an upper plate through a connecting rod. filter plate.

Preferably, the width of the discharge plate is half of the diameter of the waste above the conveyor belt II.

Preferably, the screen is made of tough material, and the screen can be elastically deformed into an upward arc or a downward arc, and the outside of the screen is in a sealed state through the flexible plug and the refractory box.

Preferably, the cylindrical plug and the pulling plate are in an "L" shape that is engaged with each other, and when the pulling plate and the lower filter plate are moved to the lowest position, the pulling plate pulls the cylindrical plug to open the water hole at the bottom of the Youjie box.

Preferably, the lower filter plate and the upper filter plate are in an inverted “V” shape, and the length of the lower filter plate is greater than the length of the upper filter plate, and the lower filter plate is held against the inner side of the upper filter plate by a fixed head .

A method for filtering a NdFeB waste hydrochloric acid washing and filtering device, comprising the following steps:

S1. The waste material is conveyed to the inner side of the material box through the conveyor belt II, and the other part of the waste material is transmitted to the top of the material box through the conveyor belt I. The waste material conveyed by the conveyor belt I will fall freely to the inner side of the material box, so that the conveyor belt I conveys The waste material collides with the waste material inside the material box, and the waste material is broken;

S2. After being crushed, materials of suitable size will pass through the discharge plate and enter the inner side of the excellent melting box. Under the deformation, the screen stirs the solution and waste inside the excellent melting box;

S3. After the hydrochloric acid is optimally dissolved, the solution filtered out by the screen does not flow through the water holes above the lower filter plate, and the lower filter plate filters out the impurities in the solution, and the movable plate is pushed upward by the screen to move the lower filter plate to gradually filter upward. The direction of the plate moves, so that the impurities above the lower filter plate are squeezed by the lower filter plate and the upper filter plate, and the extrusion is completed, and the solution is completely collected.

The present invention has the following beneficial effects:

1. The present invention transmits the waste materials of different sizes and volumes above the conveyor belt I and the conveyor belt II. When passing the height difference between the conveyor belt I and the material box, the waste material conveyed by the conveyor belt I can fall down to the material box. With a certain speed, the materials conveyed by the conveyor belt II inside the storage box can collide with the waste materials falling from the conveyor belt I, so that the fertilizers will be broken due to brittleness after the impact, so that the waste materials can be broken and fall down through the discharge plate. The volume of the waste is controllable, so that the waste can be fully soaked, and the rare earth in the waste can be completely recovered, which is convenient for the crushing and treatment of the waste and reduces the difficulty of treatment.

2. Through the setting of the screen in the present invention, when the material box is impacted by the falling material, the material box will elastically move downward and push the connected screen through the connecting rod, so that the screen is downward on the inner side of the excellent melting box Deformation effect, and when the material box is moved upward again by the force of the spring, the material box will drive the screen to deform upward again through the connecting rod, so that the shape of the screen is an upward semi-arc, so that the screen can follow the material The movement of the box causes multiple up-and-down deformations, so that the screen can stir up and down the hydrochloric acid and waste inside the Yourong box, strengthen the turbulence of the solution, improve the effect of hydrochloric acid soaking, and through the filtering effect of the screen itself, Make the solution passing through the sieve free of large particles of waste inside, which is convenient for subsequent processing of the device below.

3. In the present invention, when the screen is deformed, the screen can swing up and down synchronously at the inner end of the movable cavity, so that when the end of the screen moves upward, it can push the movable plate to move upward, and the movable plate moves upward to drive the connected The bearing plate makes the bearing plate push the support rod to move upward, and the lower filter plate connected to the support rod also moves upward synchronously. The lower filter plate moving upward will gradually approach the upper filter plate, and the impurities in the solution will be filtered out above the lower filter plate. The solution will flow to the inner side of the liquid collection tank, so that the impurities are above the lower filter plate, and will be gradually filtered between the lower filter plate and the upper filter plate, so that the solution is completely collected, reducing the solution adhesion on the surface of the impurities, and improving the recovery rate.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the overall structure of the present invention;

Fig. 2 is a cut-away schematic diagram of the structure of the material box, the structure of the excellent melting box and the structure of the liquid collection tank of the present invention;

Fig. 3 is a partially enlarged schematic diagram of one side of the excellent melting box structure of the present invention;

Fig. 4 is the enlarged schematic view of the structure at A in Fig. 3 of the present invention;

Fig. 5 is an enlarged schematic diagram of a cutaway structure of the liquid collection tank of the present invention.

In the figure: 1. Conveyor belt Ⅰ; 2. Conveyor belt Ⅱ; 3. Material storage box; 4. Discharge plate; 5. Fixed support plate; 6. Connecting rod; cavity; 10, flexible plug; 11, movable plate; 12, return spring; 13, cylindrical plug; 14, connecting column; 15, pulling plate; 16, lower filter plate; 17, scraping plate; 18, limiting column ; 19, fixed head; 20, pole; 21, force plate; 22, flexible plate; 23, force plate; 24, fixed spring; 25, liquid collection tank; 26, upper filter plate.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, a kind of NdFeB waste hydrochloric acid excellent solvent washing and filtering device, including conveyor belt I1, the bottom end of conveyor belt I1 is provided with conveyor belt II2, and after the waste material entering from the starting end of conveyor belt I1 and conveyor belt II2 is screened, conveyor belt I1 The volume of the waste material is larger than that of the conveyor belt II2, and the larger the volume and weight of the waste material, the stronger the magnetism, so that the large-volume material conveyed by the conveyor belt I1 can magnetically attract the relatively large-volume waste conveyed by the conveyor belt II2. The inner side of the conveyor belt Ⅱ2 is collided with each other, and there is a 3 under the conveyor belt II2. Referring to Figure 2, the inner bottom of the material box 3 is provided with a screen hole, and the discharge plate 4 is slidingly connected to the discharge plate 4 through the screen hole, and the discharge plate 4 passes through other structures. Control the overall manual opening or closing. The two sides of the material box 3 are slidably connected to the fixed support plate 5 through the spring. The middle part of the bottom end of the material box 3 is fixedly connected to the screen 7, and the two sides of the screen 7 are hinged respectively. Box 8, the inner walls of both sides of the excellent melting box 8 are respectively provided with movable chambers 9 opening toward the bottom end, and the two ends of the screen 7 extend into the inner chambers of the movable chambers 9 on both sides, and the gap between the screen 7 and the excellent melting box 8 The connecting surface between them is fixedly connected with a flexible plug 10, the inner top of the movable cavity 9 is fixedly connected with a return spring 12, and the bottom end of the return spring 12 is fixedly connected with a movable plate 11 located above the screen 7, and the screen hole diameter of the screen 7 is The waste can be filtered out as a whole, and the fine impurities in it will flow downward through the screen 7, and through the filtering effect of the screen 7 itself, there will be no large particle waste inside the solution passing through the screen 7, which is convenient for subsequent processing of the lower device , and after the solution is released through the water hole at the bottom of the excellent melting box 8, the screen 7 is deformed without solution buffer, and the waste at the top of the screen 7 will be thrown to the outside of the screen 7 during the upward deformation of the screen 7, and the unloading.

Please refer to Figure 1-Figure 2, there are water holes on both sides of the middle of the bottom of the You Rong box 8, and the You Rong box 8 is elastically connected to a cylindrical plug 13 through the water holes, and the bottom of the You Rong box 8 is fixedly connected There is a connecting column 14 between the two cylindrical plugs 13, the connecting column 14 is slidably connected between the two cylindrical plugs 13, the bottom end of the connecting column 14 is fixedly connected with a pulling plate 15, and the bottom end of the pulling plate 15 is fixed The lower filter plate 16 is connected, the bottom end of the connecting column 14 is fixedly connected with a block, and the connecting column 14 limits the lower filter plate 16 through the block, and the bottom end of the cylindrical plug 13 is fixedly connected with a scraper plate 17 through a connecting rope , both sides of the lower filter plate 16 are slidingly connected with fixed heads 19 through springs, and the springs have a tendency to always push the fixed heads 19 out of the inner side of the lower filter plate 16, and the elasticity makes the filter plate 16 under the action of the fixed head 19 in the liquid sump 25 One end of the fixed head 19 close to the lower filter plate 16 penetrates the lower filter plate 16 and is fixedly connected to the limit column 18, and the outer side of the limit column 18 is slidingly connected to the inner side of the lower filter plate 16, and the limit column 18 is located on the scraper plate. One side of 17 is against the scraper plate 17, and the circumferential outer side of the lower filter plate 16 is slidably connected with a sump 25. Referring to FIG. End stretches out activity cavity 9 bottoms and pole 20 is close, movable plate 11 is vertically equidistantly hinged with bearing plate 21 near the side of pole 20, and bearing plate 21 begins to be provided with bearing plate 21 near the side of movable plate 11. The outside of the force plate 21 matches the groove, and the end of the force plate 21 is hinged with the movable plate 11 to the side close to the pole 20. The force plate 21 as a whole is in an inclined state gradually approaching the pole 20 and moving upward. The side of the plate 11 is fixedly connected with a fixed plate located under the load-bearing plate 21. This fixed plate is used to control the tilt position of the force-bearing plate 21. The middle part of the force-bearing plate 21 is fixedly connected with a flexible plate 22, and the flexible plate 22 runs through the movable plate. 11 is fixedly connected upward with a force plate 23 that is vertically slidably connected to the movable plate 11, and the force plate 23 is connected to the inner side of the movable plate 11 by a spring, and the spring keeps the force plate 23 in an upward movement relative to the movable plate 11. Trend, the bearing plate 21 is fixedly connected with the fixed spring 24 on the opposite surface of the movable plate 11. Referring to FIG. 2 , the top of the liquid collection tank 25 is fixedly connected with the upper filter plate 26 through a connecting rod.

Please refer to Fig. 2, the width of the discharge plate 4 is 1/2 of the diameter of the waste above the conveyor belt II 2, so that the discharge plate 4 itself can also carry out the screening of the size of the waste, so that the waste that enters the inner side of the excellent melting box 8 through the discharge plate 4 The size of the waste is controllable, which makes the soaking effect of hydrochloric acid better.

Please refer to Figure 2-Figure 3, the screen 7 is made of tough material, and the screen 7 can be elastically deformed into an upper or lower arc shape. Because the screen 7 is set in the middle of the excellent melting box 8, the circumferential direction of the screen 7 is sealed and connected with the inner wall of the excellent melting box 8, and the material box 3 is impacted by the falling of the material. Make the material box 3 move downward elastically, and the connecting rod 6 connected to the material box 3 will push the connected screen 7, so that the screen 7 deforms downward on the inner side of the excellent melting box 8, so that the screen 7 is deformed It is a downward arc, but through the spring force between the circumferential direction of the material box 3 and the fixed support plate 5, the material box 3 will move upward again, and the movement of the material box 3 will drive the connecting rod 6, which will drive the connecting rod 6 again. The sieve 7 is deformed upwards, so that the shape of the sieve is an upward semi-arc, so that the sieve 7 can follow the movement of the material box 3 and deform up and down multiple times, so that the sieve 7 is constantly agitated up and down on the inner side of the melting box 8. The hydrochloric acid and waste material inside the melting box 8, and the shape of the screen 7 can make the waste material inside the excellent melting box 8 move laterally, thereby strengthening the degree of disorder in the solution in many ways, enhancing the effect of hydrochloric acid soaking, and making each surface of the waste material Uniform contact with hydrochloric acid, so that the waste surface soaked evenly.

Please refer to Figure 2 and Figure 5, the cylindrical plug 13 and the pulling plate 15 are in the shape of an "L" that engages with each other, and when the pulling plate 15 and the lower filter plate 16 move to the lowest position, the pulling plate 15 pulls the cylindrical plug 13 to open The water hole at the bottom of the excellent melting box 8, the water hole can be controlled manually, and the switch control of the water hole can also be carried out through the lower filter plate 16 located at the bottom of the inner side of the liquid collection tank 25, and the water hole can be controlled by the cylindrical plug 13 And the shape of the pull plate 15 is arranged to facilitate the interaction between the cylindrical plug 13 and the pull plate 15 .

Please refer to Fig. 1-Fig. 2, the lower filter plate 16 and the upper filter plate 26 are in an inverted "V" shape, and the length of the lower filter plate 16 is greater than the length of the upper filter plate 26, and the lower filter plate 16 passes through the fixed head 19 in the The inner side of the upper filter plate 26 resists, and the shape of the lower filter plate 16 and the upper filter plate 26 is set to facilitate material discharge to both sides through the shape of the lower filter plate 16, and the end of the screen 7 on the inner side of the movable chamber 9 The upper part, and the part of the screen 7 in the middle of the excellent melting box 8 are synchronously swinging up and down. When the end of the screen 7 moves upward, the top surface of the end part of the screen 7 will push the movable plate 11 to compress the return spring 12 moves upward, and after the pushed movable plate 11 moves upward, it will synchronously drive the connected bearing plate 21, so that the bearing plate 21 pushes the groove on the surface of the pole 20 to move upward, and the lower filter plate 16 connected to the pole 20 also will move upwards synchronously, so that the lower filter plate 16 moving upwards will gradually approach the upper filter plate 26. At this time, the solution will flow to the inboard of the liquid collection tank 25 through the lower filter plate 16, and the top of the lower filter plate 16 will filter out the solution. Impurities, impurities on the top of the lower filter plate 16 will be gradually filtered between the lower filter plate 16 and the upper filter plate 26, so that the solution attached to the surface of the impurities is completely collected, improving the recovery rate of the solution after hydrochloric acid is excellently dissolved, and further improving the waste rate. Recycled yield.

A method for filtering a NdFeB waste hydrochloric acid washing and filtering device, comprising the following steps:

S1. The waste materials are conveyed to the inner side of the material box 3 through the conveyor belt II2, and the other part of the waste materials are conveyed to the top of the material box 3 through the conveyor belt I1. The waste material conveyed by Ⅰ1 collides with the waste material inside the material box 3, and the waste material is broken;

S2. After being crushed, the material with a suitable size will pass through the discharge plate 4 and enter the inner side of the excellent melting box 8. The inner side of the excellent melting box 8 is filled with hydrochloric acid, and the moving up and down of the material box 3 will drive the middle part of the screen 7 up and down Move to deform the screen 7 up and down, and the screen 7 stirs the solution and waste inside the excellent melting box 8;

S3. After the hydrochloric acid is optimally dissolved, the solution filtered out by the screen 7 does not flow through the water hole above the lower filter plate 16, and the lower filter plate 16 filters out the impurities in the solution, and the movable plate 11 is driven by the screen 7 to move upward. The filter plate 16 gradually moves toward the upward filter plate 26, so that the impurities above the lower filter plate 16 are squeezed by the lower filter plate 16 and the upper filter plate 26, and the extrusion is completed, and the solution is completely collected.

The using method (working principle) of the present invention is as follows:

When soaking in hydrochloric acid, the larger volume of waste is conveyed from the top of the conveyor belt I1, and the smaller volume of waste is conveyed on the top of the conveyor belt II2 and sent to the inner side of the material box 3. When the top waste material of the conveyor belt I1 is sent to the material box 3 When the inner side of the conveyor belt I1 is dumped, the waste material at the top of the conveyor belt I1 will fall freely, and the waste material with a certain speed will fall into the inner side of the material box 3, and the material box 3 will slide down on the inner side of the fixed support plate 5 due to impact At the same time, other waste materials inside the material box 3 will move to the bottom of the waste materials falling into the material box 3 due to magnetism, so that the waste materials will collide. The brittleness of the waste materials will make the broken volume smaller after the impact. When the bottom discharge plate 4 was opened, the waste material inside the material holding box 3 was sieved out by the discharge plate 4, and the waste material of suitable size fell into the inside of the excellent melting box 8, and then the discharging plate 4 was closed to flow to the inside of the excellent melting box 8. Hydrochloric acid is passed into the inner side, and the screen 7 inside the excellent melting box 8 is connected by the connecting rod 6, so the connecting rod 6 drives the screen 7 to slide downwards following the material box 3, so that the screen 7 is on the inner side of the excellent melting box 8 Downward deformation, at the same time, the spring connected between the material box 3 and the fixed support plate 5 makes the material box 3 move upward again, and the material box 3 drives the screen 7 to move upward through the connecting rod 6, so that the screen 7 It deforms upward again, and the screen 7 is deformed up and down, driving the waste above the screen 7 to move up and down, thereby stirring the hydrochloric acid solution inside the excellent solution box 8 through the screen 7, and at the same time, the movement of the screen 7 drives the waste to shake and move.

After the soaking is completed, the up and down deformation of the screen 7 makes the ends of both sides of the screen 7 move up and down synchronously on the inside of the movable chamber 9. When the two ends of the screen 7 move upward, the sides of the screen 7 move Plate 11 moves up, and movable plate 11 pushes strut 20 to drive the lower filter plate 16 that strut 20 connects to move upwards through self-hinged load-bearing plate 21, and now, cylindrical plug 13 will pass through the bottom end of excellent melting box 8. After the water hole is closed and moved, the fixed heads 19 on both sides of the lower filter plate 16 fix the lower filter plate 16 on the inner side of the liquid collection tank 25. The end pushes and moves downward, and the force plate 23 pulls the flexible plate 22 instantly, so that the force plate 21 rotates in the direction where the movable plate 11 is located, and the movable plate 11, which returns to the initial position, will reach the next groove on the outside of the support rod 20 , when the screen mesh 7 moves upwards next time, the movable plate 11 will drive the pole 20 to move upward again, and the lower filter plate 16 will follow the pole 20 and gradually approach the bottom of the lower filter plate 16, so that the pole 20 and the lower filter plate The material is squeezed between the plates 16 until the two sides of the lower filter plate 16 move to the top of the liquid sump 25. At this time, the process of pressing the waste between the upper filter plate 26 and the lower filter plate 16 is completed, and the fixed head 19 will be released by the side of the liquid collection tank 25 and protrude from both sides of the lower filter plate 16, and the fixed head 19 will pull the connected limiting column 18 to move in the direction of the downward filter plate 16, so that the limiting column 18 is released and limited The scraper plate 17, but the scraper plate 17 is squeezed between the upper filter plate 26 and the lower filter plate 16, and the lower filter plate 16 will be pressed again by the bearing plate 21 outside the movable plate 11 through the support rod 20 Lift upwards, after the bottom of the fixed head 19 is away from the top of the liquid collection tank 25, the bottom of the excellent solution box 8 will push the force plate 23 connected vertically on the outside of the movable plate 11 to move downward, because the fixed head 19 does not move downward. It is fixed between the inner walls of the liquid collection tank 25, so that the downward movement of the instantaneous release rod 20 and the lower filter plate 16 will perform a free fall movement, so that the instantaneous lower filter plate 16 and the upper filter plate 26 are far away from each other, scraping material The plate 17 slides to both sides at the top of the lower filter plate 16 in between to push the solids after the press to be discharged to both sides. 25, the fixed head 19 is fixed between the liquid collecting tank 25 inner wall again, gets back to the initial position, and the pulling plate 15 pulls the cylindrical plug 13, so that the water hole at the bottom of the excellent melting box 8 is opened, and through the water hole to the The solution sieved by the screen 7 flows out from the bottom, and the solution passes through the diversion of the cylindrical plug 13, flows through the inner side of the upper filter plate 26 on the outside of the connecting column 14, and flows to the top of the downward filter plate 16, and the impurities in the water flow are filtered at the bottom. The top of the plate 16 is attached, and at the same time, the solution flows through the lower filter plate 16 to the inner side of the bottom liquid collection tank 25. After the liquid on the top of the optimal solution box 8 is placed, the movable plate 11 drives the lower filter plate 16 through the bearing plate 21 again. Move up, after the compression between the lower filter plate 16 and the upper filter plate 26 is completed, repeat the above steps.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a neodymium iron boron waste hydrochloric acid is excellent dissolves washing filter equipment, includes conveyer belt I (1), its characterized in that: the bottom of conveyer belt I (1) is equipped with conveyer belt II (2), the below of conveyer belt II (2) is equipped with flourishing magazine (3), the sieve mesh has been seted up to the inside bottom of flourishing magazine (3), and has blowing board (4) through sieve mesh sliding connection, there are fixed extension board (5) both sides of flourishing magazine (3) through spring sliding connection, the bottom middle part fixedly connected with screen cloth (7) of flourishing magazine (3), the both sides of screen cloth (7) articulate respectively has excellent box (8) of dissolving, the activity chamber (9) towards the bottom opening are seted up respectively to the inner wall of excellent box (8) both sides of dissolving, the both ends of screen cloth (7) stretch into the inner chamber in both sides activity chamber (9), and the connection face fixedly connected with flexible stopper (10) between screen cloth (7) and the excellent box (8), the inboard top fixedly connected with reset spring (12) in activity chamber (9), the bottom fixedly connected with of reset spring (12) is located fly leaf (11) of screen cloth (7) top.

2. The neodymium iron boron waste hydrochloric acid preferential-dissolving, washing and filtering device according to claim 1, characterized in that: the bottom end of the connecting column (14) is connected with a pulling plate (15) in a sliding manner, the bottom end of the pulling plate (15) is fixedly connected with a lower filter plate (16) in a sliding manner, the connecting column (14) is connected between the two cylindrical plugs (13) in a sliding manner, the connecting column (14) is limited by the clamping block, the bottom end of the cylindrical plug (13) is fixedly connected with a scraping plate (17) through a connecting rope, the two sides of the lower filter plate (16) are connected with fixing heads (19) in a sliding manner through springs, one end of each fixing head (19) close to the lower filter plate (16) penetrates through the lower filter plate (16) and is fixedly connected with a limiting column (18), the outer side of the limiting column (18) is connected with the inner side of the lower filter plate (16) in a sliding manner, the outer side of the lower filter plate (16) is connected with a circumferential sliding manner, a supporting groove (25) is connected with a supporting rod (20) close to the upper part of the movable supporting rod (20) and a supporting rod (20) close to the four corners of the movable supporting rod (11), and the movable supporting rod (20) and the four corners (11) of the lower filter plate (16) extend out, the utility model discloses a filter plate, including fly leaf (11), the side of fly leaf (11) is close to branch (20) vertical equidistance hinge have bearing board (21), and bearing board (21) are close to the side of fly leaf (11) and begin to be equipped with the identical groove in the outside with bearing board (21), the middle part fixedly connected with flexbile plate (22) of bearing board (21), flexbile plate (22) run through fly leaf (11) to the vertical and fly leaf (11) sliding connection's of upward direction fixedly connected with bearing board (23), the opposite face fixedly connected with fixed spring (24) of bearing board (21) and fly leaf (11), filter plate (26) are gone up through connecting rod fixedly connected with on the top of collecting tank (25).

3. The neodymium iron boron waste hydrochloric acid preferential-dissolving, washing and filtering device according to claim 1, characterized in that: the width of the material placing plate (4) is half of the diameter of the waste above the conveyor belt II (2).

4. The neodymium iron boron waste hydrochloric acid preferential-dissolving, washing and filtering device according to claim 1, characterized in that: the screen cloth (7) is the material that has the toughness, and but screen cloth (7) elastic deformation be arc or arc shape down, the outside of screen cloth (7) is through flexible stopper (10) and the preferred box of dissolving (8) between be encapsulated situation.

5. The neodymium iron boron waste hydrochloric acid preferential-dissolving, washing and filtering device according to claim 2, characterized in that: the cylindrical plug (13) and the pulling plate (15) are L-shaped and clamped with each other, and when the pulling plate (15) and the lower filter plate (16) move to the lowest position, the pulling plate (15) pulls the cylindrical plug (13) to open a water through hole at the bottom end of the dissolving box (8).

6. The neodymium iron boron waste hydrochloric acid preferential-dissolving, washing and filtering device according to claim 1, characterized in that: the lower filter plate (16) and the upper filter plate (26) are inverted V-shaped, the length of the lower filter plate (16) is larger than that of the upper filter plate (26), and the lower filter plate (16) is abutted against the inner side of the upper filter plate (26) through a fixing head (19).

7. The filtering method of the neodymium iron boron waste hydrochloric acid preferential-dissolving washing and filtering device according to claim 1, characterized by comprising the following steps:

s1, conveying waste materials to the inner side of a material containing box (3) through a conveying belt II (2), conveying the other part of waste materials to the upper side of the material containing box (3) through a conveying belt I (1), enabling the waste materials conveyed by the conveying belt I (1) to fall into the inner side of the material containing box (3) in a free falling mode, enabling the waste materials conveyed by the conveying belt I (1) to collide with the waste materials on the inner side of the material containing box (3), and crushing the waste materials;

s2, materials with proper size after being crushed enter the inner side of the preferential dissolution box (8) through the material placing plate (4), hydrochloric acid is contained in the inner side of the preferential dissolution box (8), the material containing box (3) is impacted and moves up and down to drive the middle of the screen (7) to move up and down, the screen (7) is deformed up and down, and the screen (7) stirs the solution and the waste materials on the inner side of the preferential dissolution box (8);

s3, after the hydrochloric acid is dissolved well, the solution filtered by the screen (7) does not flow to the upper part of the lower filter plate (16) through the water through holes, the lower filter plate (16) filters impurities in the solution, the movable plate (11) is pushed by the screen (7) to move upwards to drive the lower filter plate (16) to gradually move towards the upper filter plate (26), so that the impurities above the lower filter plate (16) are extruded by the lower filter plate (16) and the upper filter plate (26), the extrusion is completed, and the solution is completely collected.

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