CN114657383A - Rare metal recovery method and device - Google Patents

Abstract

The invention relates to a rare metal recovery method and a device thereof, belonging to the technical field of metal recovery, comprising a workbench and a dissolving box located above the workbench. , the outer wall of the first rotating shaft is fixedly sleeved with two rotating plates, the other ends of the two rotating plates are fixedly connected with the dissolving tank, and the top of the worktable is fixedly connected with a plurality of U-shaped frames. In the invention, by starting the driving motor to drive the rotating shaft and the arc-shaped plate to rotate, the waste residue can be fully mixed with the dissolving liquid, and the corrosion efficiency of the unneeded material is accelerated. The collision of the fine filter plate and the coarse filter plate can filter the rare metals, and the sleeve can also be moved upward to discharge the dissolved liquid and rare metals in the dissolution tank into the filter box, so as to avoid residual rare metals and dissolved liquid in the dissolution tank. .

Description

A kind of recovery method and device of rare metal

technical field

The invention belongs to the technical field of metal recovery, and relates to a rare metal recovery method and a device thereof.

Background technique

Rare metals are mainly used in the manufacture of special steels, superhard alloys and high-temperature alloys. In the electrical industry, chemical industry, ceramics industry, atomic energy industry and rocket technology, the names of rare metals have a certain relativity. Extensive research on rare metals, the discovery of new sources and new refining methods, and the expansion of their application range, the boundaries between rare metals and other metals will gradually disappear. There are more metals, but the recovery rate of rare metals is low, and there are still many rare metals that cannot be recovered, resulting in a waste of resources. Most of the rare metal recovery is to put the mixture containing rare metals into the compound tank, and add chemical solutions to carry out By stirring, the unwanted materials are corroded, leaving rare metals for recycling.

The new type with the announcement number CN215440631U discloses a rare metal refining waste slag recovery device. The waste slag enters the dissolving box from the feeding port, starts the motor, the motor drives the stirring rod to rotate, and the stirring rod drives the stirring blade to rotate clockwise. The lower valve is opened, the solvent is put into the dissolution tank, the stirring blade is fully stirred, the stirring is completed, and the liquid enters the reduction tank through the U-shaped pipe and the third pipeline. The water enters the reduction box through the water pipe, and then is reduced. After the reduction is completed, the reduced liquid enters the mixing box through the U-shaped pipe and the third pipe. At this time, the drying box dries the excess water in the mixing box, and then The valve of the extractant barrel is opened, the extractant is poured into the mixing box, and then the valve of the feed pipe is opened, and then the mixed liquid enters the extractor through the feed pipe for extraction, and the extracted metal comes out from the discharge port.

In the above technical solution, the waste residue is poured into the dissolution tank, and the waste residue in the dissolution box is stirred by the rotation of the stirring blade. Since the waste residue contains rare metals, the waste residue will be deposited at the bottom of the dissolution box, so the rotation of the stirring blade cannot effectively move the waste residue. , and then the waste residue cannot be fully dissolved from the dissolved liquid, and the unnecessary materials cannot be fully corroded, which affects the recovery quality and efficiency of rare metals. The pipe enters the reduction tank, but the rare metal cannot enter the reduction tank through the U-shaped pipe and the third pipe, so that rare metals remain in the dissolution tank.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a rare metal recovery device in order to solve the problems of poor quality and low efficiency of rare metal recovery in the prior art and residual rare metal in the dissolution tank.

To achieve the above object, the present invention provides the following technical solutions:

A rare metal recovery device includes a workbench and a dissolving box located above the workbench, a first rotating shaft is rotatably connected to one side of the top of the workbench through a support plate, and the outer wall of the first rotating shaft is fixedly sleeved. There are two rotating plates, the other ends of the two rotating plates are fixedly connected with the dissolution tank, the top of the workbench is fixedly connected with a plurality of U-shaped frames, and the top of the U-shaped frame collides with the bottom of the dissolution tank There is a filter box below the workbench, the bottom inner wall of the filter box is rotatably connected with a rotating rod that rotates through the top of the filter box, one side of the filter box is provided with a collection box, and the dissolution box is mutually The inner wall of the far side is fixedly embedded with a heating plate;

One side of the dissolving tank is provided with a stirring component for stirring the dissolving liquid and the rare metal in the dissolving tank;

The inside of the filter box is provided with a filter assembly for filtering rare metals;

The top of the filter box is provided with a discharge component for discharging the dissolved liquid and rare metals in the dissolution box into the filter box.

Further, the stirring assembly includes a drive motor fixedly connected to the side of the dissolving tank away from the first rotating shaft, the dissolving tank is connected with a rotating shaft in a lateral rotation, and the output shaft of the driving motor extends into the dissolving tank and is fixed with the rotating shaft. The outer wall of the rotating shaft is annularly provided with a plurality of arc-shaped plates, the arc-shaped plates are provided with a plurality of rectangular holes at equal distances, and the top of the dissolving box is provided with a connected feeding hopper.

Further, the filter assembly includes a fine filter plate and a coarse filter plate that are slidably connected in the filter box, and the coarse filter plate is located above the fine filter plate, and a plurality of connecting plates are slidably connected to one side of the inner wall of the filter box, so The top and bottom ends of the connecting plate are respectively fixedly connected with the coarse filter plate and the fine filter plate, the filter box is provided with a rotating motor, and the output shaft of the rotating motor is fixedly connected with the bottom end of the rotating rod, and the rotating rod has a fixed connection. The top end penetrates through the fine filter plate and the coarse filter plate respectively, the filter box is provided with two discharge ports on the side close to the collecting box, and the two discharge ports correspond to the fine filter plate and the coarse filter plate respectively. The outer wall of the rotating rod is fixedly connected with two fixing blocks, and the two fixing blocks are respectively located under the coarse filter plate and the fine filter plate.

Further, the discharge assembly includes a sleeve arranged on the top of the filter box, and the top of the sleeve slides through the workbench and is slidably connected to the bottom of the dissolution tank, the top of the rotating rod is fixedly connected with a reciprocating screw, and the sleeve is slidably connected to the bottom of the dissolution tank. A nut is fixedly connected in the barrel, and the thread at the top of the reciprocating screw penetrates the nut and extends into the sleeve. The dissolving tank is provided with a discharge port on one side close to the first rotating shaft, and a conduit is provided in the discharge port. And the other end of the conduit extends into the filter box and is located above the coarse filter plate, the inner wall of the dissolution box near the discharge port is slidably connected with a closing plate and a floating plate, and the bottom of the floating plate and the top of the closing plate are slidably connected. The fixed connection has the same first drawstring.

Further, a fixing plate is fixedly connected to the top of the dissolving box, one side of the fixing plate is slidably connected with a sliding plate that touches the dissolving box, and one side of the sliding plate is fixedly connected with a second pulling rope, and The other end of the second pulling rope is sealed and extended into the dissolving tank and is fixedly connected with the top of the floating plate. The top of the dissolving tank is rotatably connected to a roller through the support plate, and the outer wall of the roller touches the second drawing rope. After the dissolving tank is tilted, after the dissolving liquid and rare metals in the dissolving tank enter the filter box through the discharge port and the conduit, the liquid level of the dissolving liquid in the dissolving tank gradually decreases, and the friction between the sliding plate and the top of the dissolving tank is greater than that of the closing plate and the top of the dissolving tank. The self-gravity of the floating plate can prevent the closing plate and the floating plate from sliding down when the floating plate loses buoyancy, thereby closing the discharge port, resulting in a large amount of dissolved liquid and rare metals remaining in the dissolution tank.

Further, an L-shaped floating plate is slidably connected to the inner wall of the top of the box, and a load-bearing block is arranged in the L-shaped floating plate. When the dissolution box is tilted, the dissolution liquid of the dissolution box flows to the right side, and then the liquid level in the dissolution box begins to flow. When it rises, the L-shaped floating plate slides upward to the right under the action of the buoyancy of the dissolved solution, which can close the feeding hopper and prevent the dissolved solution in the dissolving box from flowing out through the feeding hopper, and when the dissolved solution in the dissolving box enters the filter box , the liquid level of the dissolving solution in the dissolving tank begins to drop, the L-shaped floating plate and the load-bearing block slide to the lower left under the gravity factor, and the feeding hopper is reopened.

Further, the bottom of the dissolving tank is provided with a chute, the top of the sleeve is rotatably connected with a slider through a support plate, and the top of the slider extends into the chute and is slidably connected with the chute.

Further, one side of the filter box is fixedly connected with a rectangular frame located above the collecting box, a second rotating shaft rotates through the rectangular frame, and the outer wall of the second rotating shaft is fixedly sleeved with a first synchronizing wheel , the outer wall of the rotating rod is fixedly sleeved with a second synchronizing wheel, the second synchronizing wheel and the first synchronizing wheel are connected by a synchronous belt, and the bottom end of the second rotating shaft extends into the rectangular frame and is A fan is fixedly connected, a plurality of resistance wire heating pipes are fixedly connected to the inner wall of the rectangular frame, and a metal filter plate is fixedly connected to the collecting box. When the rotating rod rotates, it can drive the second synchronizing wheel to rotate. The second rotating shaft and the fan are driven to rotate by the synchronous belt and the first synchronizing wheel, and then the resistance wire heating tube is started. When the fan rotates, the fan can blow the air heated by the resistance wire heating tube downward, thereby quickly drying the metal filter. Rare metals on the plate.

Further, the bottom inner wall of the collection box is fixedly connected with an air guide plate located below the metal filter plate, the side of the collection box away from the air guide plate is provided with a plurality of through holes, and the hot air blown by the fan passes through the air guide plate. After being guided, it can flow to the outside through the through holes, thereby increasing the circulation of hot air in the collecting box and accelerating the drying of rare metals.

Described a kind of recovery method of the rare metal recovery device, comprises the following steps:

S1. Pour the waste residue into the dissolving box containing the dissolving solution through the feeding hopper, start the heating plate, increase the temperature in the dissolving box through the heating plate, and start the driving motor to drive the shaft and the arc plate to rotate. Rotating, the arc plate can push the waste residue deposited at the bottom of the dissolution tank upward, and the waste residue moves to the middle under the action of the arc surface of the arc plate, and can fall back to the dissolution tank when passing through the rectangular hole on the arc plate The bottom of the slag can fully mix the waste residue and the dissolving liquid, and increase the corrosion efficiency of the unwanted materials in the waste residue;

S2. When the corrosion of the unwanted materials in the waste residue ends, start the rotating motor to drive the rotating rod to rotate, the rotating rod drives the reciprocating screw to rotate, and the reciprocating screw is threadedly connected with the nut. As the reciprocating screw rotates, the nut drives the sleeve and the slider to move upwards , and then the dissolving box can be pushed up through the slider and the sleeve, and the dissolving box can rotate counterclockwise with the first rotation axis as the fulcrum;

S3. When the dissolving tank rotates counterclockwise, the dissolving liquid and the rare metal waste in the dissolving tank slide to the left, and when the dissolving liquid flows to the left, the floating plate is moved upward by the buoyancy of the dissolving liquid, and the floating plate passes through the first A pull rope drives the closing plate to slide up, thereby opening the discharge port, and when the dissolving box is rotating, when the gravity of the fixed plate is greater than the friction between the fixed plate and the dissolving box, the fixed plate slides diagonally downward along the sliding plate, and the fixed plate passes through The second pull rope pulls the floating plate and the closing plate upward to keep the discharge port open;

S4. The dissolving liquid and rare metals in the dissolving box enter the filter box through the discharge port and the conduit. At this time, the rotating motor continues to drive the rotating rod and the reciprocating screw to rotate. When the dissolving liquid and rare metals fall on the coarse filter plate, The coarse filter plate first screens the dissolved solution and the large particles of rare metals in the rare metal, and then screens the small particles of rare metals through the fine filter plate, and the rotating rod can drive the fixed block to rotate. With the rotation of the fixed block, when the When the two fixing blocks touch the right bottom of the coarse filter plate and the fine filter plate respectively, the two fixing blocks can drive the fine filter plate and the coarse filter plate to move upward respectively. The filter plate falls again under its own gravity, which can make the fine filter plate and the coarse filter plate vibrate up and down for filtering rare metals;

S5. With the vibration of the fine filter plate and the coarse filter plate, the filtered rare metal falls on the metal filter plate in the collecting box through the discharge port, and can drive the second synchronizing wheel to rotate when the rotating rod rotates. The second synchronous wheel drives the second rotating shaft and the fan to rotate through the synchronous belt and the first synchronous wheel, and then starts the resistance wire heating tube. When the fan rotates, the fan can blow down the air heated by the resistance wire heating tube, thereby quickly drying The rare metals on the dry metal filter plate, and the hot air blown by the fan can flow to the outside through the through holes after being guided by the air guide plate, thereby increasing the circulation of hot air in the collecting box and accelerating the drying of rare metals.

The beneficial effects of the present invention are:

1. In a rare metal recovery device disclosed in the present invention, by starting the drive motor to drive the rotating shaft and the arc-shaped plate to rotate, with the rotation of the arc-shaped plate, the arc-shaped plate can push up the waste residue deposited at the bottom of the dissolving tank, When the waste slag passes through the rectangular hole on the curved plate, it can fall to the bottom of the dissolving tank again. During the falling process of the rare metal, the waste slag can be fully mixed with the dissolving liquid, which increases the corrosion efficiency of unwanted materials in the waste slag, and the heating The flakes can increase the temperature of dissolution and accelerate the corrosion of unwanted materials in the waste residue;

2. In the rare metal recovery device disclosed in the present invention, the rotating rod is driven to rotate by a rotating motor, and the rotating rod drives the reciprocating screw to rotate. With the rotation of the reciprocating screw, the nut drives the sleeve and the slider to move upward, and then the slider is passed through the slider. And the sleeve can push the dissolving box upward, and the dissolving box rotates counterclockwise with the first rotating shaft as the fulcrum, so that the rare metal in the dissolving box slides to the lower left, so that all the rare metals can enter the filter box through the discharge port and the conduit In order to avoid residual rare metals in the dissolution tank;

3. A rare metal recovery device disclosed in the present invention slides to the left through the dissolved liquid and the rare metal waste in the dissolution tank. When the dissolved liquid flows to the left, the floating plate is driven to seal by the buoyancy of the dissolved liquid. The plate slides up to open the discharge port, and when the dissolving box is rotating, when the gravity of the fixed plate is greater than the friction between the fixed plate and the dissolving box, the fixed plate slides diagonally downward along the sliding plate, and the fixed plate is moved by the second pull rope. The floating plate and the closing plate are pulled upward to keep the discharge port open to prevent the loss of the dissolved solution, resulting in insufficient buoyancy of the floating plate, causing the closing plate to close the discharge port, and residual rare metals in the dissolution box;

4. A rare metal recovery device disclosed in the present invention drives the second synchronous wheel to rotate through the rotation of the rotating rod, and the second synchronous wheel drives the second rotating shaft and the fan to rotate through the synchronous belt and the first synchronous wheel, and then starts the resistance. Wire heating tube, when the fan rotates, the fan can blow down the air heated by the resistance wire heating tube to quickly dry the rare metals on the metal filter plate.

The invention can drive the rotating shaft and the arc-shaped plate to rotate by starting the driving motor, so that the waste residue can be fully mixed with the dissolving liquid, and the corrosion efficiency of the unnecessary material can be accelerated. The collision between the fixed block and the fine filter plate and the coarse filter plate can filter the rare metal, and the sleeve can also be moved upward to discharge the dissolved liquid and rare metal in the dissolving box into the filter box, so as to avoid residual rare metals in the dissolving box. Metals and Solvents.

Other advantages, objects, and features of the present invention will be set forth in the description that follows, and will be apparent to those skilled in the art based on a study of the following, to the extent that is taught in the practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the following description.

Description of drawings

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be preferably described in detail below with reference to the accompanying drawings, wherein:

Fig. 1 is a three-dimensional view of a first perspective view of a rare metal recovery device proposed by the present invention;

FIG. 2 is a three-dimensional view of a second viewing angle of a rare metal recovery device proposed by the present invention;

Fig. 3 is the front sectional view of a kind of rare metal recovery device proposed by the present invention;

Fig. 4 is the A-A sectional view of a kind of rare metal recovery device proposed by the present invention;

5 is a three-dimensional view of a dissolution tank of a rare metal recovery device proposed by the present invention;

6 is a three-dimensional cross-sectional view of a dissolution tank of a rare metal recovery device proposed by the present invention;

7 is a three-dimensional view of a slider of a rare metal recovery device proposed by the present invention;

8 is a three-dimensional view of a fixed plate and a sliding plate of a rare metal recovery device proposed by the present invention;

FIG. 9 is a front cross-sectional view of a filter box of a rare metal recovery device proposed in the second embodiment of the present invention.

Reference numerals: 1. Workbench; 2. First rotating shaft; 3. Rotating plate; 4. Dissolving box; 5. U-shaped frame; 6. Feeding hopper; 7. Rotating shaft; 8. Driving motor; 9. Arc Shaped plate; 10. Rectangular hole; 11. Discharge port; 12. Closing plate; 13. Floating plate; filter box; 19, fine filter plate; 20, coarse filter plate; 21, fixed block; 22, connecting plate; 23, rotating rod; 24, reciprocating screw; 25, sleeve; 26, nut; 27, rotating motor; 28 , discharge port; 29, collecting box; 30, rectangular frame; 31, second rotating shaft; 32, first synchronizing wheel; 33, second synchronizing wheel; 34, timing belt; 35, fan; 36, resistance wire Heating pipe; 37, metal filter plate; 38, wind deflector; 39, through hole; 40, L-shaped floating plate; 41, load-bearing block; 42, heating plate; 43, roller; 44, chute; 45, slider ; 46, catheter.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

Among them, the accompanying drawings are only used for exemplary description, and represent only schematic diagrams, not physical drawings, and should not be construed as limitations of the present invention; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms “upper”, “lower”, “left” and “right” , "front", "rear" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must be It has a specific orientation, is constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation of the present invention. situation to understand the specific meaning of the above terms.

Example 1

As shown in Figures 1-8, a rare metal recovery device includes a workbench 1 and a dissolving box 4 located above the workbench 1. The top side of the workbench 1 is rotatably connected with a first rotating shaft 2 through a support plate. The outer wall of the first rotating shaft 2 is fixedly sleeved with two rotating plates 3, the other ends of the two rotating plates 3 are fixedly connected with the dissolving box 4 by bolts, and the top of the worktable 1 is fixedly connected with a plurality of U-shaped frames by bolts 5, and the top of the U-shaped frame 5 is in contact with the bottom of the dissolving box 4, a filter box 18 is arranged below the workbench 1, and the bottom inner wall of the filter box 18 is rotatably connected with a rotating rod 23 that rotates through the top of the filter box 18, One side of the filter box 18 is provided with a collecting box 29, the inner wall of the dissolving box 4 that is far away from each other is embedded with a heating plate 42 through bolts, and one side of the dissolving box 4 is provided with a dissolving solution for the dissolving liquid in the dissolving box 4. A stirring component for stirring with rare metals, a filter component for filtering rare metals is provided inside the filter box 18, and a top of the filter box 18 is provided for discharging the dissolved liquid and rare metals in the dissolution box 4 into the filter box 18 The top inner wall of the dissolving tank 4 is slidably connected with an L-shaped floating plate 40, and the L-shaped floating plate 40 is provided with a load-bearing block 41. When the dissolving tank 4 is inclined, the dissolving liquid of the dissolving tank 4 flows to the right side, Then the liquid level in the dissolving tank 4 begins to rise, and the L-shaped floating plate 40 slides to the upper right under the action of the buoyancy of the dissolving liquid, which can close the feeding hopper 6 and prevent the dissolving liquid in the dissolving tank 4 from flowing out through the feeding hopper 6, And when the dissolving liquid in the dissolving tank 4 enters the filter box 18, the liquid level of the dissolving liquid in the dissolving tank 4 begins to drop, the L-shaped floating plate 40 and the bearing block 41 slide to the lower left under the gravity factor, and the feeding is reopened. Bucket 6.

In the present invention, the stirring assembly includes a drive motor 8 that is fixedly connected to the side of the dissolution tank 4 away from the first rotating shaft 2 by bolts. The dissolution tank 4 is connected with a rotating shaft 7 in a lateral direction, and the output shaft of the drive motor 8 extends to the side of the dissolution tank 4. The box 4 is fixedly connected with the rotating shaft 7 by bolts. The outer wall of the rotating shaft 7 is annularly provided with a plurality of arc-shaped plates 9. The arc-shaped plate 9 is provided with a plurality of rectangular holes 10 at equal distances. The top of the dissolution box 4 is provided with a connecting The feeding hopper 6, by starting the drive motor 8, drives the rotating shaft 7 and the arc-shaped plate 9 to rotate, with the rotation of the arc-shaped plate 9, the arc-shaped plate 9 can push the waste residue deposited at the bottom of the dissolving box 4 upward, and the waste residue passes through When the rectangular hole 10 on the arc-shaped plate 9 is used, it can fall to the bottom of the dissolution tank 4 again. During the falling process of the rare metal, the waste residue and the dissolution liquid can be fully mixed, so as to increase the corrosion efficiency of unwanted materials in the waste residue, and the heating The sheet 42 can increase the temperature of dissolution, accelerating the corrosion of unwanted materials in the slag.

In the present invention, the filter assembly includes a fine filter plate 19 and a coarse filter plate 20 that are slidably connected in the filter box 18, and the coarse filter plate 20 is located above the fine filter plate 19, and one inner wall of the filter box 18 is slidably connected with a plurality of The connecting plate 22, the top and bottom ends of the connecting plate 22 are respectively connected with the coarse filter plate 20 and the fine filter plate 19 by bolts, and the filter box 18 is provided with a rotating motor 27, and the output shaft of the rotating motor 27 is connected with the rotating rod 23. The bottom end is fixedly connected by a coupling, the top end of the rotating rod 23 penetrates the fine filter plate 19 and the coarse filter plate 20 respectively, the filter box 18 is provided with two discharge ports 28 on the side close to the collecting box 29, and the two discharge ports The material port 28 corresponds to the fine filter plate 19 and the coarse filter plate 20 respectively. The outer wall of the rotating rod 23 is fixedly connected with two fixing blocks 21 by bolts, and the two fixing blocks 21 are located on the coarse filter plate 20 and the fine filter plate 19 respectively. below.

In the present invention, the discharge assembly includes a sleeve 25 disposed on the top of the filter box 18, and the top of the sleeve 25 slides through the workbench 1 and is slidably connected to the bottom of the dissolution tank 4. The top of the rotating rod 23 is fixedly connected with a bolt. The reciprocating screw 24, the sleeve 25 is fixedly connected with a nut 26, and the top thread of the reciprocating screw 24 penetrates the nut 26 and extends into the sleeve 25, the dissolving box 4 is provided with a discharge port 11 on the side close to the first rotating shaft 2 The discharge port 11 is provided with a conduit 46, and the other end of the conduit 46 extends into the filter box 18 and is located above the coarse filter plate 20. The inner wall of the dissolution box 4 close to the discharge port 11 is slidably connected with a closing plate 12. With the floating plate 13, the bottom of the floating plate 13 and the top of the closing plate 12 are fixedly connected with the same first pulling rope 14. The rotating rod 23 is driven to rotate by the rotating motor 27, and the rotating rod 23 drives the reciprocating screw 24 to rotate. 24 rotates, the nut 26 drives the sleeve 25 and the slider 45 to move upward, and then the dissolving tank 4 can be pushed up through the slider 45 and the sleeve 25. The rare metals in the dissolving box 4 slide downward to the left, so that all the rare metals can enter the filter box 18 through the discharge port 11 and the conduit 46 , so as to avoid residual rare metals in the dissolving box 4 .

In the present invention, the top of the dissolving tank 4 is fixedly connected with a fixing plate 16 by bolts, one side of the fixing plate 16 is slidably connected with a sliding plate 17 that touches the dissolving tank 4, and one side of the sliding plate 17 is fixedly connected with a second Pull the rope 15, and the other end of the second pull rope 15 is sealed and extended into the dissolving tank 4 and is fixedly connected with the top of the floating plate 13. The top of the dissolving tank 4 is rotatably connected to the roller 43 through the support plate, and the outer wall of the roller 43 is The second pulling rope 15 touches each other. When the dissolving tank 4 is tilted, the dissolving liquid and the rare metal in the dissolving tank 4 enter the filter box 18 through the discharge port 11 and the conduit 46, and the liquid level of the dissolving liquid in the dissolving tank 4 gradually increases. down, and the friction between the sliding plate 17 and the top of the dissolution tank 4 is greater than the self-gravity of the closing plate 12 and the floating plate 13, so that the closing plate 12 and the floating plate 13 can be prevented from sliding down when the floating plate 13 loses buoyancy, thereby closing the The discharge port 11 causes a large amount of dissolving liquid and rare metals to remain in the dissolving tank 4 .

In the present invention, the bottom of the dissolving tank 4 is provided with a chute 44 , the top of the sleeve 25 is rotatably connected with the slider 45 through the support plate, and the top of the slider 45 extends into the chute 44 and is slidably connected with the chute 44 .

In the present invention, the dissolving solution in the present invention is the same as the compound solution in the publication number 210646096U.

Embodiment 2

This embodiment is a further improvement of the previous embodiment. As shown in Figures 1-9, a rare metal recovery device includes a workbench 1 and a dissolution tank 4 located above the workbench 1. The top side of the workbench 1 The first rotating shaft 2 is rotatably connected through the support plate, the outer wall of the first rotating shaft 2 is fixedly sleeved with two rotating plates 3, and the other ends of the two rotating plates 3 are fixedly connected with the dissolving box 4 by bolts. A plurality of U-shaped frames 5 are fixedly connected to the top of the u There is a rotating rod 23 that rotates through the top of the filter box 18. One side of the filter box 18 is provided with a collection box 29. The inner wall of the side of the dissolution box 4 away from each other is fixed and embedded with a heating plate 42 by bolts. The side is provided with a stirring component for stirring the dissolved solution and the rare metal in the dissolution tank 4, the filter box 18 is provided with a filter component for filtering the rare metal inside, and the top of the filter box 18 is provided with a dissolving tank 4. The dissolved liquid and rare metals in the inside are discharged into the discharge assembly of the filter box 18. The top inner wall of the dissolution box 4 is slidably connected with an L-shaped floating plate 40. The L-shaped floating plate 40 is provided with a load-bearing block 41. When the dissolution box 4 is tilted , the dissolving liquid in the dissolving tank 4 flows to the right, and then the liquid level in the dissolving tank 4 begins to rise, and the L-shaped floating plate 40 slides upward to the right under the action of the buoyancy of the dissolving liquid, which can close the feeding hopper 6 and prevent the dissolving tank The dissolving liquid in 4 flows out through the feeding hopper 6, and when the dissolving liquid in the dissolving tank 4 enters the filter box 18, the liquid level of the dissolving liquid in the dissolving tank 4 begins to drop, and the L-shaped floating plate 40 and the load-bearing block 41 are at the bottom. Swipe down to the left under gravity to reopen feed hopper 6.

In the present invention, the stirring assembly includes a drive motor 8 that is fixedly connected to the side of the dissolution tank 4 away from the first rotating shaft 2 by bolts. The dissolution tank 4 is connected with a rotating shaft 7 in a lateral direction, and the output shaft of the drive motor 8 extends to the side of the dissolution tank 4. The box 4 is fixedly connected with the rotating shaft 7 by bolts. The outer wall of the rotating shaft 7 is annularly provided with a plurality of arc-shaped plates 9. The arc-shaped plate 9 is provided with a plurality of rectangular holes 10 at equal distances. The top of the dissolution box 4 is provided with a connecting The feeding hopper 6, by starting the drive motor 8, drives the rotating shaft 7 and the arc-shaped plate 9 to rotate, with the rotation of the arc-shaped plate 9, the arc-shaped plate 9 can push the waste residue deposited at the bottom of the dissolving box 4 upward, and the waste residue passes through When the rectangular hole 10 on the arc-shaped plate 9 is used, it can fall to the bottom of the dissolution tank 4 again. During the falling process of the rare metal, the waste residue and the dissolution liquid can be fully mixed, so as to increase the corrosion efficiency of unwanted materials in the waste residue, and the heating The sheet 42 can increase the temperature of dissolution, accelerating the corrosion of unwanted materials in the slag.

In the present invention, the filter assembly includes a fine filter plate 19 and a coarse filter plate 20 that are slidably connected in the filter box 18, and the coarse filter plate 20 is located above the fine filter plate 19, and one inner wall of the filter box 18 is slidably connected with a plurality of The connecting plate 22, the top and bottom ends of the connecting plate 22 are respectively connected with the coarse filter plate 20 and the fine filter plate 19 by bolts, and the filter box 18 is provided with a rotating motor 27, and the output shaft of the rotating motor 27 is connected with the rotating rod 23. The bottom end is fixedly connected by a coupling, the top end of the rotating rod 23 penetrates the fine filter plate 19 and the coarse filter plate 20 respectively, the filter box 18 is provided with two discharge ports 28 on the side close to the collecting box 29, and the two discharge ports The material port 28 corresponds to the fine filter plate 19 and the coarse filter plate 20 respectively. The outer wall of the rotating rod 23 is fixedly connected with two fixing blocks 21 by bolts, and the two fixing blocks 21 are located on the coarse filter plate 20 and the fine filter plate 19 respectively. below.

In the present invention, the discharge assembly includes a sleeve 25 disposed on the top of the filter box 18, and the top of the sleeve 25 slides through the workbench 1 and is slidably connected to the bottom of the dissolution tank 4. The top of the rotating rod 23 is fixedly connected with a bolt. The reciprocating screw 24, the sleeve 25 is fixedly connected with a nut 26, and the top thread of the reciprocating screw 24 penetrates the nut 26 and extends into the sleeve 25, the dissolving box 4 is provided with a discharge port 11 on the side close to the first rotating shaft 2 The discharge port 11 is provided with a conduit 46, and the other end of the conduit 46 extends into the filter box 18 and is located above the coarse filter plate 20. The inner wall of the dissolution box 4 close to the discharge port 11 is slidably connected with a closing plate 12. With the floating plate 13, the bottom of the floating plate 13 and the top of the closing plate 12 are fixedly connected with the same first pulling rope 14. The rotating rod 23 is driven to rotate by the rotating motor 27, and the rotating rod 23 drives the reciprocating screw 24 to rotate. 24 rotates, the nut 26 drives the sleeve 25 and the slider 45 to move upward, and then the dissolving tank 4 can be pushed up through the slider 45 and the sleeve 25. The rare metals in the dissolving box 4 slide downward to the left, so that all the rare metals can enter the filter box 18 through the discharge port 11 and the conduit 46 , so as to avoid residual rare metals in the dissolving box 4 .

In the present invention, the top of the dissolving tank 4 is fixedly connected with a fixing plate 16 by bolts, one side of the fixing plate 16 is slidably connected with a sliding plate 17 that touches the dissolving tank 4, and one side of the sliding plate 17 is fixedly connected with a second Pull the rope 15, and the other end of the second pull rope 15 is sealed and extended into the dissolving tank 4 and is fixedly connected with the top of the floating plate 13. The top of the dissolving tank 4 is rotatably connected to the roller 43 through the support plate, and the outer wall of the roller 43 is The second pulling rope 15 touches each other. When the dissolving tank 4 is tilted, the dissolving liquid and the rare metal in the dissolving tank 4 enter the filter box 18 through the discharge port 11 and the conduit 46, and the liquid level of the dissolving liquid in the dissolving tank 4 gradually increases. down, and the friction between the sliding plate 17 and the top of the dissolution tank 4 is greater than the self-gravity of the closing plate 12 and the floating plate 13, so that the closing plate 12 and the floating plate 13 can be prevented from sliding down when the floating plate 13 loses buoyancy, thereby closing the The discharge port 11 causes a large amount of dissolving liquid and rare metals to remain in the dissolving tank 4 .

In the present invention, the bottom of the dissolving tank 4 is provided with a chute 44 , the top of the sleeve 25 is rotatably connected with the slider 45 through the support plate, and the top of the slider 45 extends into the chute 44 and is slidably connected with the chute 44 .

In the present invention, the dissolving solution in the present invention is the same as the compound solution in the publication number 210646096U.

In the present invention, a rectangular frame 30 located above the collecting box 29 is fixedly connected to one side of the filter box 18 by bolts, the rectangular frame 30 rotates through a second rotating shaft 31, and the outer wall of the second rotating shaft 31 is fixedly sleeved with a The first synchronizing wheel 32, the outer wall of the rotating rod 23 is fixedly sleeved with a second synchronizing wheel 33, the second synchronizing wheel 33 and the first synchronizing wheel 32 are connected by a synchronous belt 34, and the bottom end of the second rotating shaft 31 extends The fan 35 is fixedly connected to the rectangular frame 30, the inner wall of the rectangular frame 30 is fixedly connected with a plurality of resistance wire heating pipes 36 by bolts, and the collection box 29 is fixedly connected with a metal filter plate 37 by bolts. It can drive the second synchronizing wheel 33 to rotate. The second synchronizing wheel 33 drives the second rotating shaft 31 and the fan 35 to rotate through the synchronous belt 34 and the first synchronizing wheel 32, and then starts the resistance wire heating pipe 36. When the fan 35 rotates, the fan 35 can blow down the air heated by the resistance wire heating tube 36, thereby rapidly drying the rare metals on the metal filter plate 37.

In the present invention, the bottom inner wall of the collecting box 29 is fixedly connected with the air guide plate 38 located below the metal filter plate 37 by bolts, and the side of the collecting box 29 away from the air guide plate 38 is provided with a plurality of through holes 39, and the fan 35 The blown hot air can flow to the outside through the through holes 39 after being guided by the air guide plate 38 , thereby increasing the circulation of the hot air in the collecting box 29 and accelerating the drying of rare metals.

The advantage of the second embodiment compared with the first embodiment is that one side of the filter box 18 is fixedly connected with a rectangular frame 30 located above the collecting box 29 through bolts, and the rectangular frame 30 rotates through a second rotating shaft 31, and the second rotating shaft 31 rotates. The outer wall of the shaft 31 is fixedly sleeved with a first synchronization wheel 32, and the outer wall of the rotating rod 23 is fixedly sleeved with a second synchronization wheel 33. The second synchronization wheel 33 and the first synchronization wheel 32 are connected by a transmission belt 34. The bottom ends of the two rotating shafts 31 extend into the rectangular frame 30 and are fixedly connected with the fan 35. The inner wall of the rectangular frame 30 is fixedly connected with a plurality of resistance wire heating pipes 36 by bolts, and the collecting box 29 is fixedly connected by bolts. plate 37.

A recovery method of a rare metal recovery device, comprising the following steps:

S1, pour the waste residue into the dissolving tank 4 containing the dissolving liquid through the feeding hopper 6, start the heating sheet 42, increase the temperature in the dissolving tank 4 through the heating sheet 42, start the driving motor 8 to drive the rotating shaft 7 and the arc-shaped plate 9 Rotation, with the rotation of the arc-shaped plate 9, the arc-shaped plate 9 can push the waste residue deposited at the bottom of the dissolving box 4 upward, and the waste residue moves to the middle under the action of the arc-shaped plate 9, and passes through the arc-shaped plate 9. When the rectangular hole 10 on the 9 can be dropped to the bottom of the dissolving tank 4 again, the waste residue can be fully mixed with the dissolving liquid, and the corrosion efficiency of the unwanted materials in the waste residue can be increased;

S2. After the corrosion of the unnecessary materials in the waste residue is finished, start the rotating motor 27 to drive the rotating rod 23 to rotate, the rotating rod 23 drives the reciprocating screw 24 to rotate, and the reciprocating screw 24 is threadedly connected with the nut 26. As the reciprocating screw 24 rotates, the nut 26 rotates. Drive the sleeve 25 and the slider 45 to move upward, and then the dissolving tank 4 can be pushed up through the slider 45 and the sleeve 25, and the dissolving tank 4 rotates counterclockwise with the first rotating shaft 2 as a fulcrum;

S3. When the dissolving tank 4 rotates counterclockwise, the dissolving liquid and the rare metal waste slag in the dissolving tank 4 slide to the left, and when the dissolving liquid flows to the left, the floating plate 13 is moved upward by the buoyancy of the dissolving liquid, and floats The plate 13 drives the closing plate 12 to slide upward through the first pull rope 14, thereby opening the discharge port 11, and when the dissolving box 4 is rotating, when the gravity of the fixing plate 16 is greater than the friction between the fixing plate 16 and the dissolving box 4, the fixing plate 16 slides diagonally downward along the sliding plate 17, and the fixed plate 16 pulls the floating plate 13 and the closing plate 12 upward through the second pulling rope 15 to keep the discharge port 11 open;

S4. The dissolving liquid and rare metals in the dissolving box 4 enter the filter box 18 through the discharge port 11 and the conduit 46. At this time, the rotating motor 27 still continues to drive the rotating rod 23 and the reciprocating screw 24 to rotate. When the dissolving liquid and the rare metal fall When on the coarse filter plate 20, the coarse filter plate 20 first screens the dissolved solution and the large particles of rare metals in the rare metals, and then the fine filter plate 19 screens the small particles of rare metals, and the rotating rod 23 can drive the fixed When the block 21 rotates, with the rotation of the fixed block 21, when the two fixed blocks 21 touch the right bottom of the coarse filter plate 20 and the fine filter plate 19 respectively, the two fixed blocks 21 can drive the fine filter plate 19 respectively. And the coarse filter plate 20 moves upward, when the fixed block 21 leaves, the fine filter plate 19 and the coarse filter plate 20 fall again under their own gravity, and then the fine filter plate 19 and the coarse filter plate 20 can be made to vibrate up and down, for filter rare metals;

S5. With the vibration of the fine filter plate 19 and the coarse filter plate 20, the filtered rare metal falls on the metal filter plate 37 in the collecting box 29 through the discharge port 28, and can drive the first filter plate 37 when the rotating rod 23 rotates. The second synchronizing wheel 33 rotates, the second synchronizing wheel 33 drives the second rotating shaft 31 and the fan 35 to rotate through the synchronous belt 34 and the first synchronizing wheel 32, and then starts the resistance wire heating tube 36. When the fan 35 rotates, the fan 35 can rotate The air heated by the resistance wire heating pipe 36 is blown downward, thereby rapidly drying the rare metals on the metal filter plate 37, and the hot air blown by the fan 35 can flow to the outside through the through hole 39 after being guided by the air guide plate 38, and then Increase the circulation of hot air in the collecting box 29 to accelerate the drying of rare metals.

However, the working principles and wiring methods of the driving motor 8, the rotating motor 27, the resistance wire heating tube 36, the fan 35 and the heating sheet 42, which are well known to those skilled in the art, belong to the conventional means or common knowledge in the technical field, and will not be discussed here. To reiterate, those skilled in the art can perform any matching according to their needs or convenience.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should all be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a recovery unit of rare metal, includes workstation (1) and the dissolution case (4) that are located workstation (1) top, its characterized in that, top one side of workstation (1) is rotated through the backup pad and is connected with first axis of rotation (2), the fixed cover of outer wall of first axis of rotation (2) is equipped with two rotor plates (3), two the other end of rotor plate (3) all with dissolution case (4) fixed connection, a plurality of U type framves (5) of top fixedly connected with of workstation (1), and the top of U type frame (5) touches with the bottom of dissolution case (4), the below of workstation (1) is equipped with filter box (18), the bottom inner wall of filter box (18) rotates and is connected with dwang (23) that rotate and run through filter box (18) top, one side of filter box (18) is equipped with collection workbin (29), heating sheets (42) are fixedly embedded in the inner walls of the sides of the dissolving boxes (4) far away from each other;

a stirring component for stirring the dissolving liquid and the rare metal in the dissolving tank (4) is arranged on one side of the dissolving tank (4);

a filtering component for filtering rare metals is arranged in the filtering box (18);

and a discharge assembly for discharging the dissolving liquid and the rare metal in the dissolving tank (4) into the filter tank (18) is arranged at the top of the filter tank (18).

2. The rare metal recovery device according to claim 1, wherein the stirring assembly comprises a driving motor (8) fixedly connected to one side of the dissolving tank (4) far away from the first rotating shaft (2), the dissolving tank (4) is internally and transversely rotatably connected with a rotating shaft (7), an output shaft of the driving motor (8) extends into the dissolving tank (4) and is fixedly connected with the rotating shaft (7), a plurality of arc-shaped plates (9) are annularly arranged on the outer wall of the rotating shaft (7), a plurality of rectangular holes (10) are equidistantly arranged in the arc-shaped plates (9), and a feeding hopper (6) communicated with the top of the dissolving tank (4) is arranged.

3. The recycling device of rare metals according to claim 1, wherein the filtering component comprises a fine filtering plate (19) and a coarse filtering plate (20) which are connected in a filtering box (18) in a sliding manner, the coarse filtering plate (20) is located above the fine filtering plate (19), a plurality of connecting plates (22) are connected to the inner wall of one side of the filtering box (18) in a sliding manner, the top end and the bottom end of each connecting plate (22) are respectively fixedly connected with the coarse filtering plate (20) and the fine filtering plate (19), a rotating motor (27) is arranged in the filtering box (18), the output shaft of the rotating motor (27) is fixedly connected with the bottom end of the rotating rod (23), the top end of the rotating rod (23) respectively penetrates through the fine filtering plate (19) and the coarse filtering plate (20), two discharging ports (28) are arranged on one side of the filtering box (18) close to the collecting box (29), and the two discharging ports (28) respectively correspond to the fine filtering plate (19) and the coarse filtering plate (20), the outer wall fixedly connected with of dwang (23) has two fixed blocks (21), and two fixed blocks (21) are located the below of thick filter plate (20) and thin filter plate (19) respectively.

4. The rare metal recovery device according to claim 1, wherein the discharge assembly comprises a sleeve (25) arranged at the top of the filter box (18), the top end of the sleeve (25) penetrates through the workbench (1) in a sliding manner and is connected with the bottom of the dissolving box (4) in a sliding manner, the top end of the rotating rod (23) is fixedly connected with a reciprocating screw rod (24), a nut (26) is fixedly connected in the sleeve (25), the top end thread of the reciprocating screw rod (24) penetrates through the nut (26) and extends into the sleeve (25), and a discharge hole (11) is formed in one side, close to the first rotating shaft (2), of the dissolving box (4).

5. The recycling device for rare metals according to claim 1, wherein a fixed plate (16) is fixedly connected to the top of the dissolving tank (4), a sliding plate (17) touching the dissolving tank (4) is slidably connected to one side of the fixed plate (16), a second pulling rope (15) is fixedly connected to one side of the sliding plate (17), the other end of the second pulling rope (15) extends into the dissolving tank (4) in a sealing manner and is fixedly connected to the top of the floating plate (13), a roller (43) is rotatably connected to the top of the dissolving tank (4) through a supporting plate, and the outer wall of the roller (43) touches the second pulling rope (15).

6. The rare metal recovery device as claimed in claim 4, wherein the discharge assembly further comprises a guide pipe (46) arranged in the discharge port (11), the other end of the guide pipe (46) extends into the filter box (18) and is located above the coarse filter plate (20), the inner wall of one side of the dissolving box (4) close to the discharge port (11) is connected with a closing plate (12) and a floating plate (13) in a sliding manner, and the bottom of the floating plate (13) and the top of the closing plate (12) are fixedly connected with the same first pull rope (14).

7. The recycling device of rare metals according to claim 6, wherein the top inner wall of the dissolving tank (4) is slidably connected with an L-shaped floating plate (40), a bearing block (41) is arranged in the L-shaped floating plate (40), the bottom of the dissolving tank (4) is provided with a sliding chute (44), the top end of the sleeve (25) is rotatably connected with a sliding block (45) through a supporting plate, and the top of the sliding block (45) extends into the sliding chute (44) and is slidably connected with the sliding chute (44).

8. The recycling device of rare metals according to claim 1, wherein one side of the filter box (18) is fixedly connected with a rectangular frame (30) above the material collecting box (29), a second rotating shaft (31) penetrates through the rectangular frame (30) in a rotating manner, a first synchronizing wheel (32) is fixedly sleeved on the outer wall of the second rotating shaft (31), a second synchronizing wheel (33) is fixedly sleeved on the outer wall of the rotating rod (23), and the second synchronizing wheel (33) is in transmission connection with the first synchronizing wheel (32) through a synchronizing belt (34).

9. The recycling device for rare metals according to claim 8, wherein the bottom end of the second rotating shaft (31) extends into the rectangular frame (30) and is fixedly connected with a fan (35), the inner wall of the rectangular frame (30) is fixedly connected with a plurality of resistance wire heating pipes (36), the inside of the material collecting box (29) is fixedly connected with a metal filter plate (37), the inner wall of the bottom of the material collecting box (29) is fixedly connected with an air deflector (38) positioned below the metal filter plate (37), and one side of the material collecting box (29) far away from the air deflector (38) is provided with a plurality of through holes (39).

10. The method for recovering a rare metal recovery apparatus according to any one of claims 1 to 9, comprising the steps of:

s1, pouring the waste residues into a dissolving box (4) filled with a dissolving solution through a feed hopper (6), starting a heating sheet (42), increasing the temperature in the dissolving box (4) through the heating sheet (42), starting a driving motor (8) to drive a rotating shaft (7) and an arc-shaped plate (9) to rotate, wherein along with the rotation of the arc-shaped plate (9), the arc-shaped plate (9) can push the waste residues deposited at the bottom of the dissolving box (4) upwards, and the waste residues move towards the middle under the action of the arc-shaped surface of the arc-shaped plate (9), and can fall to the bottom of the dissolving box (4) again when passing through a rectangular hole (10) in the arc-shaped plate (9);

s2, after corrosion of unnecessary materials in the waste residues is finished, starting a rotating motor (27) to drive a rotating rod (23) to rotate, driving a reciprocating screw rod (24) to rotate by the rotating rod (23), connecting the reciprocating screw rod (24) with a nut (26) in a threaded manner, driving a sleeve (25) and a sliding block (45) to move upwards by the nut (26) along with the rotation of the reciprocating screw rod (24), further pushing a dissolving box (4) upwards through the sliding block (45) and the sleeve (25), and enabling the dissolving box (4) to rotate anticlockwise by taking a first rotating shaft (2) as a fulcrum;

s3, when the dissolving tank (4) rotates anticlockwise, the dissolving liquid and the rare metal waste slag in the dissolving tank (4) slide to the left side, and when the dissolving liquid flows to the left side, the floating plate (13) moves upwards under the action of the buoyancy of the dissolving liquid, the floating plate (13) drives the closing plate (12) to slide upwards through the first pull rope (14), so that the discharge hole (11) is opened, and when the dissolving tank (4) rotates, when the gravity of the fixed plate (16) is larger than the friction force of the fixed plate (16) and the dissolving tank (4), the fixed plate (16) slides along the sliding plate (17) in an inclined downward mode, the fixed plate (16) pulls the floating plate (13) and the closing plate (12) upwards through the second pull rope (15), so that the opening state of the discharge hole (11) is kept;

s4, the dissolving solution and rare metals in the dissolving tank (4) enter the filter tank (18) through the discharge hole (11) and the guide pipe (46), at the moment, the rotating motor (27) still drives the rotating rod (23) and the reciprocating screw (24) to rotate, when the dissolving solution and the rare metals fall on the coarse filter plate (20), the coarse filter plate (20) firstly screens the large-particle rare metals in the dissolving solution and the rare metals, then screens the small-particle rare metals through the fine filter plate (19), the rotating rod (23) can drive the fixed blocks (21) to rotate when rotating, along with the rotation of the fixed blocks (21), when the two fixed blocks (21) respectively contact with the bottom parts of the right sides of the coarse filter plate (20) and the fine filter plate (19), the two fixed blocks (21) can respectively drive the fine filter plate (19) and the coarse filter plate (20) to move upwards, and when the fixed blocks (21) leave, the fine filter plate (19) and the coarse filter plate (20) fall again under the self gravity factor, and then the fine filter plate (19) and the coarse filter plate (20) can vibrate up and down;

s5, along with the vibration of the fine filter plates (19) and the coarse filter plates (20), filtered rare metals fall on the metal filter plates (37) in the material collecting box (29) through the discharge port (28), and can drive the second synchronous wheel (33) to rotate when the rotating rod (23) rotates, the second synchronous wheel (33) drives the second rotating shaft (31) and the fan (35) to rotate through the synchronous belt (34) and the first synchronous wheel (32), then the resistance wire heating pipe (36) is started, and when the fan (35) rotates, the fan (35) can blow air heated by the resistance wire heating pipe (36) downwards.

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