Waste catalyst crushing device based on precious metal

Abstract

The invention belongs to the technical field of crushing treatment equipment, and particularly relates to a waste catalyst crushing device based on precious metal. Comprising a crushing cylinder, a vibrating screen separation cylinder and a filtering backflow cylinder which are sequentially communicated from top to bottom; the vibrating screen separation cylinder is connected with a discharging mechanism, and the discharging end of the discharging mechanism is connected with the roller ball milling mechanism; a circulating spraying mechanism is arranged at the top of the crushing barrel and is connected with the filtering reflux barrel; a grinding roller is arranged above the first guide plate; a filtering mechanism is arranged in the filtering backflow cylinder; the waste noble metal catalyst can be fully crushed and utilized, impurities on the surface of the waste noble metal catalyst can be cleaned in the crushing process, and a cleaning solution can be recycled; the problem that the precious metal waste catalyst is difficult to clean and crush into powder is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing processing equipment, and in particular relates to a crushing device for waste catalyst based on precious metals. Background Art

[0002] Due to the scarcity of precious metal resources and high extraction costs, the replacement, reduction, and regeneration of precious metal catalysts have become a major issue. The regeneration of precious metal catalysts is the main method. In the process of precious metal catalyst regeneration, the smaller the particles of the catalyst are, the more conducive it is to later recycling.

[0003] After the existing waste catalytic precious metal mesh plates are recycled, they will undergo multiple processes of transportation and collection, which will cause dirt to adhere to the waste catalytic precious metal mesh plates. If the dirt of unknown composition is not removed during the crushing process, it will react with the precious metals in the regeneration process, thereby reducing the recovery efficiency of the precious metal catalyst. In addition, the existing crushing device does not sufficiently crush the precious metal catalyst mesh plates, resulting in larger regenerated particles of the waste catalyst, which increases the regeneration reaction time of the precious metal catalyst and reduces the regeneration efficiency of the precious metal catalyst. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and proposes a crushing device for waste catalyst based on precious metals; the present invention is achieved through the following technical solutions: A crushing device for waste catalyst based on precious metals, comprising a crushing cylinder, a vibrating screening cylinder and a filtering reflux cylinder which are sequentially connected and arranged from top to bottom; the vibrating screening cylinder is connected to a discharging mechanism, and the discharging end of the discharging mechanism is connected to a drum ball mill mechanism; a circulating spraying mechanism is provided on the top of the crushing cylinder, and the circulating spraying mechanism is connected to the filtering reflux cylinder; The first vibrating screen plate and the second vibrating screen plate are obliquely arranged inside the vibrating screen separation cylinder, and the first vibrating screen plate is located above the second vibrating screen plate; four vibrating screen columns are arranged at the lower end of the first vibrating screen plate, and the two vibrating screen columns at the rear side are obliquely penetrated at the rear side of the second vibrating screen plate, and the mesh aperture on the first vibrating screen plate is larger than the mesh aperture on the second vibrating screen plate; The vibrating screen column is composed of a connecting column and a fixed column. The lower bottom surface of the connecting column is provided with an oscillation reset spring. The connecting column and the oscillation reset spring are movably sleeved in the hole groove of the fixed column. The ends of the fixed columns are provided with fixed blocks for connecting to the inner wall of the vibrating screen separation cylinder. The top end of the connecting column is connected to the bottom of the first vibrating screen plate. A reciprocating electric push cylinder is provided on the side wall of the filter reflux cylinder, a vibrating convex block is provided on the upper end of the reciprocating electric push cylinder, and the top of the vibrating convex block abuts against the bottom of the front side of the second vibrating screen plate; The discharging mechanism comprises a first material guide plate and a second material guide plate, wherein the first material guide plate is tiltedly disposed at the side end of the first vibrating screen plate for discharging particles on the first vibrating screen plate; the second material guide plate is tiltedly disposed at the side end of the second vibrating screen plate for discharging particles on the second vibrating screen plate; a first material discharge stopper is disposed at the side end of the first material guide plate, and a second material discharge stopper is disposed between the first material guide plate and the second material guide plate; a material discharge hopper for connecting to a material feed port of a drum ball mill mechanism is disposed at the side ends of both the first material discharge stopper and the second material discharge stopper; A pressing roller is arranged above the first material guide plate; a filtering mechanism is arranged in the filtering reflux cylinder.

[0005] Furthermore, a first motor is provided on the outer wall of the crushing drum, two guide blocks are symmetrically provided on the upper end of the crushing drum, two crushing rollers are symmetrically provided on the lower end of the guide blocks, and two meshing transmission gears are sleeved on one side of the two crushing rollers; the output shaft of the first motor is connected to the transmission gear.

[0006] Furthermore, the circulating spray mechanism includes a spray block and a liquid storage tank. The spray block is horizontally installed on the top of the crushing cylinder. A pump is arranged in the spray block. The pump and the liquid storage tank are directly connected with a water pipe. The filter reflux cylinder and the liquid storage tank are directly connected with a reflux pipe. The spray block is a diamond column structure. A plurality of spray holes are symmetrically arranged on both sides of the spray block. The spray holes are directly opposite to the position of the guide block.

[0007] Furthermore, vertical plates for supporting leakage prevention are symmetrically arranged on both sides of the first material guide plate and the second material guide plate, and sliding grooves for adjusting the sliding movement of the rolling roller are opened on the vertical plates. The other end of the rolling roller is provided with a clamping knob for fitting the vertical plate to fix the rolling roller.

[0008] Furthermore, the rolling roller is connected to a lifting support mechanism; the lifting support mechanism is composed of a second support frame and a transmission motor, the transmission motor is installed on the top surface of the second support frame, the transmission motor shaft of the transmission motor is coaxially fixed to the rolling roller, and the second support frame is composed of four adjustable telescopic rods, and the adjustable telescopic rods are provided with limit pins for fixing.

[0009] Furthermore, the filtering mechanism includes a first filter frame and a second filter frame; the second filter frame is provided at the lower end of the first filter frame, and filter holes are equidistantly provided on the first filter frame and the second filter frame, and the filter hole diameter of the first filter frame is larger than the filter hole diameter of the second filter frame.

[0010] Furthermore, the drum ball mill mechanism includes a ball mill cylinder; the feed port of the ball mill cylinder is rotatably connected to the lower hopper.

[0011] Furthermore, a first support frame is provided at the lower end of the crushing drum, the crushing drum is fixedly mounted on the upper end of the first support frame, and a vibrating screening and sorting drum is installed at the lower end of the first support frame.

[0012] The beneficial effects of the present invention compared with the prior art are as follows: In the present invention, the circulation connection between the spray block and the filter reflux cylinder facilitates the filtering and recovery of the cleaning liquid, thereby realizing the recycling of the cleaning liquid; the sorting and vibrating cooperation between the first vibrating screen plate and the second vibrating screen plate facilitates the sorting of the waste catalyst particles, thereby improving the efficiency of the secondary crushing, thereby realizing the function of sorting and crushing; and the material guiding and crushing cooperation between the discharging mechanism and the drum ball mill mechanism facilitates the conduction of the waste catalyst into the ball mill, thereby improving the manufacturing efficiency of the ball mill, thereby realizing the function of crushing the waste catalyst into powder, ultimately solving the problem of the difficulty in cleanly crushing the precious metal waste catalyst into powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a three-dimensional structural schematic diagram of the positional relationship of the internal components of the vibrating screening and sorting cylinder of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the position relationship of the internal components of the crushing barrel of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the positional relationship between the first vibrating screen plate and the second vibrating screen plate of the present invention; Figure 6 It is a three-dimensional structural diagram of the position relationship of the internal components of the filter reflux cartridge of the present invention; Figure 7 It is a cross-sectional perspective schematic diagram of a vibrating screen column of the present invention; Figure 8 This is a schematic diagram of the discharging mechanism of the present invention from a first viewing angle; Fig. 9 It is a schematic diagram of the discharging mechanism of the present invention from a second viewing angle.

[0014] Serial number in the picture: 1. Crushing cylinder; 2. First support frame; 3. Vibrating screening cylinder; 4. Filter reflux cylinder; 5. Spray block; 6. Discharging mechanism; 7. Second support frame; 8. Pressing roller; 9. Liquid storage box; 10. Ball mill; 11. Spray hole; 12. First vibrating screen plate; 13. Second vibrating screen plate; 14. Reflux pipe; 15. Guide block; 16. Crushing roller; 17. Vibrating screen column; 18. First filter frame; 19. Second filter frame; 20. Reciprocating electric push cylinder; 21. Vibrating convex block; 26. Connecting column; 27. Fixed block; 28. Fixed column; 29. ​​Oscillation reset spring; 30. First guide plate; 31. Second guide plate; 32. First unloading block; 33. Second unloading block; 34. Limiting pin; 35. Unloading hopper; 36. Sliding groove; 37. Pressing knob. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0016] See also Figures 1 to 9 The present embodiment proposes a crushing device for waste catalyst based on precious metals, comprising a crushing drum 1, a first support frame 2 is provided at the lower end of the crushing drum 1, the crushing drum 1 is fixedly mounted on the upper end of the first support frame 2, a vibrating screening drum 3 is mounted at the lower end of the first support frame 2, a filtering reflux drum 4 is provided at the lower end of the vibrating screening drum 3, the crushing drum 1, the vibrating screening drum 3 and the filtering reflux drum 4 are sequentially connected from top to bottom; a discharging mechanism 6 is provided at the side end of the vibrating screening drum 3, a roller ball milling mechanism is provided at the lower end of the discharging mechanism 6; a lifting support mechanism is provided at the side end of the discharging mechanism 6; a pressing roller 8 is provided on the discharging mechanism 6, and the side end of the pressing roller 8 is fixedly connected to the lifting support mechanism.

[0017] A first motor is provided on the outer wall of the crushing drum 1, two guide blocks 15 are symmetrically provided on the upper end of the crushing drum 1, two crushing rollers 16 are symmetrically provided on the lower ends of the two guide blocks 15, one side of the two crushing rollers 16 is sleeved with a transmission gear, and the two transmission gears are kept in meshing; the output shaft of the first motor is connected to one of the transmission gears; the first motor drives the two crushing rollers 16 to rotate in opposite directions to extrude and crush the waste catalytic precious metal mesh plate.

[0018] A circulating spray mechanism is connected between the crushing cylinder 1 and the filtering and reflux cylinder 4. Through the setting of the circulating spray mechanism, the waste catalytic precious metal mesh plate can be flushed, thereby removing the dirt and dust on the waste catalytic precious metal mesh plate, and the cleaning liquid is recycled after filtering through the filtering and reflux cylinder 4; the circulating spray mechanism includes a spray block 5 and a liquid storage tank 9, the spray block 5 is horizontally installed on the top of the crushing cylinder 1, a pump is arranged in the spray block 5, the pump and the liquid storage tank 9 are directly connected with a water pipe, and the filtering and reflux cylinder 4 and the liquid storage tank 9 are directly connected with a return pipe 14; the spray block 5 is a diamond column structure, and a plurality of spray holes 11 are symmetrically arranged on both sides of the spray block 5, and the spray holes 11 are directly opposite to the position of the guide block 15, and the sprayed cleaning liquid flows down evenly along the guide block 15, thereby improving the spray cleaning effect, and the edge of the spray block 5 with a diamond column structure has a chamfered structure, which can reduce the collision and wear of the waste catalytic precious metal mesh plate on the spray block 5.

[0019] A first vibrating screen plate 12 and a second vibrating screen plate 13 are obliquely provided inside the vibrating screen sorting cylinder 3, and the first vibrating screen plate 12 is located above the second vibrating screen plate 13; four vibrating screen columns 17 are provided at the lower end of the first vibrating screen plate 12, and the two vibrating screen columns 17 on the rear side are obliquely penetrated on the rear side of the second vibrating screen plate 13, and the mesh aperture on the first vibrating screen plate 12 is larger than the mesh aperture on the second vibrating screen plate 13; through the arrangement of the first vibrating screen plate 12 and the second vibrating screen plate 13, the waste catalytic precious metal mesh plate particles crushed by the crushing roller 16 can be sorted.

[0020] Among them, the vibrating screen column 17 is composed of a connecting column 26 and a fixed column 28. The lower bottom surface of the connecting column 26 is provided with an oscillation reset spring 29. The connecting column 26 and the oscillation reset spring 29 are movably sleeved in the hole groove of the fixed column 28. The end of the fixed column 28 is provided with a fixed block 27 for connecting to the inner wall of the vibrating screen sorting cylinder 3; the top of the connecting column 26 is connected to the bottom of the first vibrating screen plate 12; through the setting of the vibrating screen column 17, the impact force of the falling waste catalytic precious metal mesh particles can be used to drive the oscillation reset spring 29 to expand and contract, so that the first vibrating screen plate 12 vibrates up and down to sort the waste catalytic precious metal mesh particles.

[0021] A reciprocating electric push cylinder 20 is provided on the side wall of the filter reflux cylinder 4, and a vibrating protrusion 21 is provided on the upper end of the reciprocating electric push cylinder 20, and the top of the vibrating protrusion 21 is abutted against the bottom of the front side of the second vibrating screen plate 13; through the arrangement of the reciprocating electric push cylinder 20 and the vibrating protrusion 21, the second vibrating screen plate 13 can be made to vibrate up and down, thereby preventing the waste catalytic precious metal mesh plate particles contaminated with the cleaning liquid from adhering to the second vibrating screen plate 13, and improving the vibrating separation effect of the second vibrating screen plate 13, so that smaller particles of waste catalyst and cleaning liquid enter the filter reflux cylinder 4.

[0022] The discharging mechanism 6 connected to the side end of the vibrating screening and sorting cylinder 3 includes a first guide plate 30 and a second guide plate 31. The first guide plate 30 is tiltedly arranged at the side end of the first vibrating screening plate 12 for discharging particles on the first vibrating screening plate 12; the second guide plate 31 is tiltedly arranged at the side end of the second vibrating screening plate 13 for discharging particles on the second vibrating screening plate 13; a first unloading stopper 32 is arranged at the side end of the first guide plate 30, and a second unloading stopper 33 is arranged between the first guide plate 30 and the second guide plate 31; the side ends of the first unloading stopper 32 and the second unloading stopper 33 are both provided with a unloading hopper 35 for connecting to the feed port of the ball mill 10; through the arrangement of the first unloading stopper 32 and the second unloading stopper 33, the waste catalytic precious metal mesh plate particles can be better conducted through the first guide plate 30 and the second guide plate 31, thereby leading to the unloading hopper 35 on the feed port of the ball mill 10, completing the feeding operation of the drum ball mill mechanism.

[0023] Vertical plates for supporting leakage prevention are symmetrically provided on both sides of the first material guide plate 30 and the second material guide plate 31. Sliding grooves 36 for sliding adjustment of the rolling roller 8 are opened on the vertical plates. The other end of the rolling roller 8 is provided with a clamping knob 37 for fixing the rolling roller 8 to the vertical plate. Through the interaction between the vertical plate and the clamping knob 37, the side axis of the rolling roller 8 can be fixed on the vertical plate. The rolling roller 8 is located above the first material guide plate 30, and is used for further crushing and crushing the particles on the first material guide plate 30.

[0024] The lifting support mechanism is composed of a second support frame 7 and a transmission motor. The transmission motor is installed on the top surface of the second support frame 7. The transmission motor shaft of the transmission motor is coaxially fixed with the crushing roller 8. The second support frame 7 is composed of four adjustable telescopic rods. The adjustable telescopic rods are provided with limit pins 34 for fixing. Through the setting of the support mechanism, the transmission motor that drives the crushing roller 8 to rotate can be better supported, so that the crushing roller 8 can be stably rotated to crush and crush the waste catalytic precious metal mesh particles.

[0025] A first filter frame 18 is provided in the filter reflux cylinder 4, and a second filter frame 19 is provided at the lower end of the first filter frame 18. Filter holes are equidistantly provided on the first filter frame 18 and the second filter frame 19. The filter hole diameter of the first filter frame 18 is larger than the filter hole diameter of the second filter frame 19, forming a secondary filtration. The setting of the first filter frame 18 and the second filter frame 19 can filter the cleaning liquid, thereby recycling and reusing the cleaning liquid, and facilitating the collection of filtered impurities.

[0026] The drum ball milling mechanism includes a ball mill 10; the feed port of the ball mill 10 is rotatably connected to the lower hopper 35; the drum ball milling mechanism is an existing device, and a horizontal ball mill is used in this embodiment. Through the setting of the drum ball milling mechanism, the waste catalytic precious metal mesh plate particles can be made into waste catalyst powder, thereby facilitating the regeneration preparation of the waste catalytic precious metal mesh plate.

[0027] The working principle of a crushing device for waste catalyst based on precious metals is: First, each motor of the device is powered on, and cleaning liquid is added to the liquid storage tank 9, and then the first motor on the device is started. The first motor drives a crushing roller 16 to rotate, and the waste catalytic precious metal mesh plate is placed from the top of the crushing cylinder 1. The transmission gear on the crushing roller 16 drives the two crushing rollers 16 to rotate in opposite directions, so that the placed waste catalytic precious metal mesh plate is crushed and rolled. The spray block 5 on the crushing cylinder 1 conducts the water liquid of the liquid storage tank 9 and the water pipe to spray the cleaning liquid through the spray hole 11; in the process of crushing the waste catalytic precious metal mesh plate, the waste catalytic precious metal mesh plate is cleaned. By setting the diamond column structure spray block 5, the cleaning liquid can be sprayed better, and the collision and wear of the waste catalytic precious metal mesh plate on the spray block 5 can be reduced. The spraying of the cleaning liquid can flush the waste catalytic precious metal mesh plate, thereby removing the dirt and dust on the waste catalytic precious metal mesh plate.

[0028] Then the waste catalytic precious metal mesh plate is crushed by two crushing rollers 16 to form waste catalytic precious metal mesh plate particles. The waste catalytic precious metal mesh plate particles pass through the crushing cylinder 1 and fall onto the first vibrating screen plate 12 of the vibrating screen sorting cylinder 3. The vibrating screen column 17 at the lower end of the first vibrating screen plate 12 can use the impact force of the falling waste catalytic precious metal mesh plate particles to drive the oscillation reset spring 29 to expand and contract, so that the first vibrating screen plate 12 vibrates up and down to sort the waste catalytic precious metal mesh plate particles. The waste catalytic precious metal mesh plate particles with large particles slide onto the first guide plate 30, and the waste catalytic precious metal mesh plate particles with small particles fall onto the second vibrating screen plate 13. The waste catalytic precious metal mesh plate particles on the first guide plate 30 are crushed again into waste catalytic precious metal mesh plate particles with smaller particle size by the pressing of the pressing roller 8, and then fall into the lower hopper 35. The side shaft of the crushing roller 8 is fixed on the vertical plate through the action of the vertical plate and the clamping knob 37, so that the crushing of the crushing roller 8 is adjustable. Controlling the degree of secondary crushing can reduce the pressure of subsequent crushing, thereby controlling the working efficiency of the device.

[0029] Subsequently, through the setting of the reciprocating electric push cylinder 20 and the vibrating protrusion 21, the second vibrating screen plate 13 can be made to rise and fall, thereby preventing the waste catalytic precious metal mesh plate particles contaminated with the cleaning liquid from adhering to the second vibrating screen plate 13, and improving the vibrating separation effect of the second vibrating screen plate 13, so that the smaller waste catalytic precious metal mesh plate particles and the cleaning liquid can better enter the filter reflux cylinder 4 at the lower layer of the second vibrating screen plate 13; some of the waste catalytic precious metal mesh plate particles remaining on the second vibrating screen plate 13 slide onto the second guide plate 31, and fall into the ball mill 10 through the lower hopper 35; the setting of the first filter frame 18 and the second filter frame 19 in the filter reflux cylinder 4 can filter the cleaning liquid, thereby recycling and reusing the cleaning liquid.

[0030] The waste catalytic precious metal mesh particles are turned into waste catalyst powder under the rotation of the ball mill 10. The prepared catalyst powder can facilitate the regeneration of the waste catalyst. Then the catalyst powder is discharged from one side of the ball mill 10 and the power supply of the device is disconnected. At this point, the use of the device is completed.

[0031] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A crushing device for waste catalyst based on precious metals, characterized in that: The invention comprises a crushing cylinder (1), a vibrating screening cylinder (3) and a filtering reflux cylinder (4) which are connected to each other in sequence from top to bottom; the vibrating screening cylinder (3) is connected to a discharging mechanism (6), and a discharging end of the discharging mechanism (6) is connected to a drum ball mill mechanism; a circulating spraying mechanism is provided on the top of the crushing cylinder (1), and the circulating spraying mechanism is connected to the filtering reflux cylinder (4); A first vibrating screen plate (12) and a second vibrating screen plate (13) are obliquely arranged inside the vibrating screen sorting cylinder (3), wherein the first vibrating screen plate (12) is located above the second vibrating screen plate (13); four vibrating screen columns (17) are arranged at the lower end of the first vibrating screen plate (12), and two vibrating screen columns (17) on the rear side are obliquely arranged on the rear side of the second vibrating screen plate (13); the mesh aperture on the first vibrating screen plate (12) is larger than the mesh aperture on the second vibrating screen plate (13); The vibrating screen column (17) is composed of a connecting column (26) and a fixed column (28); an oscillating return spring (29) is provided on the lower bottom surface of the connecting column (26); the connecting column (26) and the oscillating return spring (29) are movably sleeved in a hole groove of the fixed column (28); and a fixing block (27) for connecting to the inner wall of the vibrating screen separation cylinder (3) is provided at the end of the fixed column (28); the top end of the connecting column (26) is connected to the bottom of the first vibrating screen plate (12); A reciprocating electric push cylinder (20) is provided on the side wall of the filter reflux cylinder (4), a vibrating protrusion (21) is provided on the upper end of the reciprocating electric push cylinder (20), and the top of the vibrating protrusion (21) abuts against the bottom of the front side of the second vibrating screen plate (13); The material discharging mechanism (6) comprises a first material guide plate (30) and a second material guide plate (31); the first material guide plate (30) is disposed obliquely at the side end of the first vibrating screen plate (12) and is used to discharge particles on the first vibrating screen plate (12); the second material guide plate (31) is disposed obliquely at the side end of the second vibrating screen plate (13) and is used to discharge particles on the second vibrating screen plate (13); a first material discharge stopper (32) is provided at the side end of the first material guide plate (30), and a second material discharge stopper (33) is provided between the first material guide plate (30) and the second material guide plate (31); and a material discharge hopper (35) for communicating with a material feed port of a drum ball mill mechanism is provided at the side ends of both the first material discharge stopper (32) and the second material discharge stopper (33); A pressing roller (8) is arranged above the first material guide plate (30); and a filtering mechanism is arranged in the filtering return cylinder (4).

2. A crushing device for waste catalyst based on precious metals according to claim 1, characterized in that: A first motor is provided on the outer wall of the crushing cylinder (1); two material guide blocks (15) are symmetrically provided at the upper end of the crushing cylinder (1); two crushing rollers (16) are symmetrically provided at the lower ends of the two material guide blocks (15); a transmission gear is sleeved on one side of the two crushing rollers (16); the two transmission gears are kept in mesh; and the output shaft of the first motor is connected to one of the transmission gears.

3. A crushing device for waste catalyst based on precious metals according to claim 2, characterized in that: The circulating spray mechanism comprises a spray block (5) and a liquid storage tank (9). The spray block (5) is horizontally installed on the top of the crushing cylinder (1). A pump is arranged in the spray block (5). The pump and the liquid storage tank (9) are directly connected by a water delivery pipe. The filter return cylinder (4) and the liquid storage tank (9) are directly connected by a return pipe (14). The spray block (5) is a rhombus column structure. Both sides of the spray block (5) are symmetrically provided with a plurality of spray holes (11). The spray holes (11) are directly opposite to the position of the material guide block (15).

4. A crushing device for waste catalyst based on precious metals according to claim 1, characterized in that: Vertical plates for supporting leakage prevention are symmetrically provided on both sides of the first material guide plate (30) and the second material guide plate (31), and sliding grooves (36) for sliding adjustment of the rolling roller (8) are provided on the vertical plates. A clamping knob (37) for fixing the rolling roller (8) in contact with the vertical plates is provided at the other end of the rolling roller (8).

5. A crushing device for waste catalyst based on precious metals according to claim 4, characterized in that: The rolling roller (8) is connected to a lifting support mechanism; the lifting support mechanism is composed of a second support frame (7) and a transmission motor, the transmission motor is mounted on the top surface of the second support frame (7), the transmission motor shaft of the transmission motor is coaxially fixedly connected to the rolling roller (8), and the second support frame (7) is composed of four adjustable telescopic rods, and the adjustable telescopic rods are provided with limit pins (34) for fixing.

6. A crushing device for waste catalyst based on precious metals according to claim 1, characterized in that: The filtering mechanism comprises a first filtering frame (18) and a second filtering frame (19); the second filtering frame (19) is provided at the lower end of the first filtering frame (18); filtering holes are provided on the first filtering frame (18) and the second filtering frame (19) at equal intervals; the aperture of the filtering hole of the first filtering frame (18) is larger than the aperture of the filtering hole of the second filtering frame (19).

7. A device for crushing waste catalyst based on precious metals according to claim 1, characterized in that: The drum ball mill mechanism comprises a ball mill cylinder (10); a feed port of the ball mill cylinder (10) is rotatably connected to a lower hopper (35).

8. The device for crushing waste catalyst based on precious metals according to claim 1, characterized in that: A first support frame (2) is provided at the lower end of the crushing cylinder (1), the crushing cylinder (1) is fixedly mounted on the upper end of the first support frame (2), and a vibrating screening and sorting cylinder (3) is mounted at the lower end of the first support frame (2).

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