Recovery and impurity removal equipment for deactivated catalyst

Abstract

The utility model relates to the technical field of catalyst recovery, in particular to deactivated catalyst recovery and impurity removal equipment which can separate agglomerates and deactivated catalyst particles, respectively perform screening and impurity removal, can crush the agglomerates and is good in practicability. Comprising a bottom plate, a mounting frame, a fine screen drum and a drum door, the mounting frame is mounted on the bottom plate, the fine screen drum is mounted on the mounting frame, and the drum door seals a front end opening of the fine screen drum; the screen further comprises a driving mechanism, a coarse screen drum, a plurality of guide bosses and a plurality of shifting plates, the drum door is installed on the bottom plate through an opening and closing assembly, the coarse screen drum is concentrically installed in the fine screen drum, a plurality of sliding grooves are formed in the circumference of the outer wall of the coarse screen drum, and the guide bosses are arranged on the two sides of the sliding grooves of the coarse screen drum. The multiple material stirring plates are slidably inserted into the multiple sliding grooves of the coarse screen drum respectively, the inner ends of the multiple material stirring plates extend into the coarse screen drum, the outer ends of the multiple material stirring plates make contact with the inner wall of the fine screen drum, and the driving mechanism drives the fine screen drum and the coarse screen drum to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst recovery, in particular to deactivated catalyst recovery and impurity removal equipment. Background Art

[0002] After recovery, deactivated catalysts are typically screened and cleaned of impurities before being activated. A Chinese utility model patent with prior art publication number CN219260138U proposes a de-impurity device for recovering spent catalyst metals. This de-impurity device, which works in conjunction with a working box, a grinding cylinder, a rotating shaft, a second motor, a rotating rod, a filter box, a first motor, a driving gear, and a driven gear, pre-treats the spent catalysts. This eliminates the need for workers to use separate pre-treatment equipment before de-impurity treatment, thus avoiding waste of material resources. After de-impurity treatment, the reducing liquid can be directly subjected to solid-liquid separation, improving the efficiency of waste catalyst metal recovery and facilitating use by workers. A Chinese utility model patent with publication number CN216459959U proposes a regenerated SCR denitrification catalyst screening and de-impurity device. This device uses a motor to drive a drive shaft to rotate, which in turn causes a flipping plate to flip the raw material, keeping the raw material and impurities in motion. This allows impurities to quickly pass through the screen plate, improving the screening efficiency of the raw material.

[0003] In actual work, it was found that the recovered deactivated catalyst particles tend to stick to each other and clump together. If these agglomerates are directly screened, they are likely to clog and block the sieve holes of the sieve, resulting in reduced impurity removal efficiency. Since these agglomerates are relatively loose, if grinding rollers are used to grind and crush them, the deactivated catalyst particles are easily crushed. Therefore, a deactivated catalyst recovery and impurity removal device is proposed, which can efficiently separate agglomerates and deactivated catalyst particles and screen and remove impurities from agglomerates and deactivated catalyst particles respectively, which will be practical. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a deactivated catalyst recovery and impurity removal device that can separate agglomerates and deactivated catalyst particles and screen and remove impurities respectively, can crush agglomerates, and has good practicality.

[0005] The utility model discloses a deactivated catalyst recovery and impurity removal device, comprising a base plate, a mounting frame, a fine screen drum and a drum door, wherein the mounting frame is mounted on the base plate, the rear end of the fine screen drum is rotatably mounted on the mounting frame via an intermediate shaft, and the drum door closes the front end of the fine screen drum; the utility model also comprises a driving mechanism, a coarse screen drum, a plurality of guide bosses and a plurality of material-diverting plates, the drum door is mounted on the base plate via an opening and closing assembly, the coarse screen drum is concentrically mounted inside the fine screen drum, the front end of the coarse screen drum is in sliding contact with the inner wall of the drum door, and a circumferential arrangement is provided on the outer wall of the coarse screen drum. Multiple chutes, guide bosses are provided on both sides of the multiple chutes of the coarse screen cylinder, multiple stripper plates are slidably inserted into the multiple chutes of the coarse screen cylinder, the inner ends of the multiple stripper plates extend into the coarse screen cylinder, the outer ends of the multiple stripper plates contact the inner wall of the fine screen cylinder, and the driving mechanism drives the fine screen cylinder and the coarse screen cylinder to rotate; when working, the recovered deactivated catalyst particles are put into the coarse screen cylinder, the cylinder door is closed, the driving mechanism drives the fine screen cylinder and the coarse screen cylinder to rotate synchronously, the coarse screen cylinder drives the multiple stripper plates to rotate synchronously, and the upper ends of the multiple stripper plates are The deactivated catalyst particles in the coarse screen cylinder are driven to the upper part of the coarse screen cylinder and thrown down, so that the agglomerates are broken under repeated throwing and hitting, and the broken small particles and the impurities that are shaken off fall into the space between the coarse screen cylinder and the fine screen cylinder through the sieve holes of the coarse screen cylinder. The deactivated catalyst particles that fall between the coarse screen cylinder and the fine screen cylinder gather at the bottom of the fine screen cylinder and are driven to the upper part of the fine screen cylinder by the lower ends of the two stripping plates. When the stripping plate at the rear strips the deactivated catalyst particles to the upper part of the fine screen cylinder, the deactivated catalyst particles move along the screen located at the The rear stripper plate flows to the top of the coarse screen cylinder. At this time, the front stripper plate shrinks toward the inside of the coarse screen cylinder under the action of gravity, so that the deactivated catalyst particles on the top of the coarse screen cylinder lose their obstruction and fall forward, so that the deactivated catalyst particles are knocked down and impurities are removed. The impurities that fall off are discharged through the sieve holes of the fine screen cylinder, thereby achieving efficient separation of agglomerates and deactivated catalyst particles, and the agglomerates and deactivated catalyst particles are screened and impurities are removed respectively, and the agglomerates are broken during the screening and impurity removal process, which has good practicality.

[0006] Preferably, it also includes multiple rollers and special-shaped guide rails, multiple stripper plates all rotate rollers, and the special-shaped guide rails are installed on the inner wall of the cylinder door. When the cylinder door is closed, multiple rollers are rollingly connected to the special-shaped guide rails, and the special-shaped guide rails drive multiple stripper plates to extend and retract by guiding the rollers; the fine screen cylinder and the coarse screen cylinder rotate counterclockwise, and after the cylinder door is closed, the special-shaped guide rails roll and guide the multiple rollers so that the rollers are located at the outermost sides between the six o'clock and one o'clock positions. At this time, the outer end of the stripper plate contacts the inner wall of the fine screen cylinder, so that the rollers move to the innermost sides between the one o'clock and twelve o'clock positions. At this time, the stripper plate gradually shrinks inwardly, so that the rollers are located at the innermost sides between the twelve o'clock and six o'clock positions. At this time, the outer end of the stripper plate is completely retracted inside the coarse screen cylinder, thereby realizing forced guiding of the multiple stripper plates and improving the pushing effect of the multiple stripper plates on agglomerated and deactivated catalyst particles.

[0007] Preferably, the opening and closing assembly includes an axle seat, an arm plate and a push cylinder 1, the axle seat is installed on the base plate, one end of the arm plate is rotatably installed on the axle seat, the other end of the arm plate is connected to the cylinder door, one end of the push cylinder 1 is rotatably connected to the base plate, and the other end of the push cylinder 1 is rotatably connected to the arm plate; the piston rod of the push cylinder 1 extends to push the arm plate to rotate outward around the axle seat, thereby opening the cylinder door. Similarly, the piston rod of the push cylinder 1 contracts to pull the arm plate to rotate inward around the axle seat, thereby closing the cylinder door. The technology is mature and practical.

[0008] Preferably, it also includes a push cylinder 2, a flip motor, a cross arm and a rolling roller. The fixed end of the push cylinder 2 is installed on the mounting frame, the flip motor is installed on the piston rod of the push cylinder 2, one end of the cross arm is connected to the output shaft of the flip motor, and the rolling roller is installed on the other end of the cross arm. A socket matching the rolling roller is provided on the cylinder door, and the rolling roller extends into the interior of the coarse screen cylinder through the socket and approaches the inner wall of the coarse screen cylinder; after the cylinder door is closed, the flip motor drives the cross arm to flip so that the rolling roller is aligned with the socket of the cylinder door, and the piston rod of the push cylinder 2 contracts so that the rolling roller extends into the coarse screen cylinder through the socket of the cylinder door. When the coarse screen cylinder drives the agglomerates to roll, the rolling roller cooperates with the inner wall of the coarse screen cylinder to crush the agglomerates, thereby improving the efficiency of agglomeration crushing.

[0009] Preferably, it also includes a brush roller and a roller shaft, the brush roller is installed on the mounting frame through the rotation of the roller shaft, and a plurality of rolling brush bristles are installed on the brush roller, and the rolling brush bristles are pressed against the outer wall of the fine screen cylinder; when the fine screen cylinder rotates, the roller shaft and the brush roller rotate, so that the rolling brush bristles of the brush roller clean the sieve holes of the fine screen cylinder, avoiding clogging of the sieve holes of the fine screen cylinder and improving the impurity removal effect.

[0010] Preferably, the driving mechanism includes a reduction motor, a driving wheel 1, a driven wheel 1, a transmission belt 1, a driven wheel 2 and a transmission belt 2, the reduction motor is mounted on the base plate, the driving wheel is concentrically mounted on the output shaft of the reduction motor, the driven wheel is concentrically mounted on the intermediate shaft of the fine screen drum, the transmission belt 1 is suitably connected to the driving wheel 1 and the driven wheel 1, the driven wheel 2 is concentrically mounted on the roller shaft, and the transmission belt 2 is suitably connected to the driving wheel 1 and the driven wheel 2; the reduction motor drives the driving wheel 1 to rotate, the driving wheel 1 drives the driven wheel 1 to rotate through the transmission belt 1, the driven wheel 1 drives the fine screen drum to rotate, and at the same time, the driving wheel 1 drives the driven wheel 2 to rotate through the transmission belt 2, the driven wheel 2 drives the roller shaft and the brush roller to rotate, thereby driving the fine screen drum and the brush roller, and making the rolling brush of the brush roller clean the sieve holes of the fine screen drum against the rotation direction of the fine screen drum, with good cleaning effect.

[0011] Compared with the prior art, the present invention has the following beneficial effects: efficient separation of agglomerated and deactivated catalyst particles is achieved, and agglomerated and deactivated catalyst particles are screened and impurity removed respectively, and agglomerates are crushed during the screening and impurity removal process, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a structural diagram of the utility model;

[0013] Figure 2 This is a front sectional structural diagram of the present utility model;

[0014] Figure 3 This is a schematic diagram of the rear axonometric structure of the present invention;

[0015] Figure 4 This is a schematic structural diagram of the present invention when the rolling roller is in an extended state;

[0016] Figure 5 This is a structural diagram of the rolling roller of the present invention when it is in a flipped state;

[0017] Figure 6 This is a schematic structural diagram of the utility model when the cylinder door is in an open state;

[0018] Figure 7 It is a structural diagram of the coarse screen drum, guide boss, material-diverting plate, roller and special-shaped guide rail.

[0019] Markings in the attached drawings: 1. Base plate; 2. Mounting frame; 3. Fine screen cylinder; 4. Cylinder door; 5. Coarse screen cylinder; 6. Guide boss; 7. Material removal plate; 8. Roller; 9. Special-shaped guide rail; 10. Axle seat; 11. Arm plate; 12. Push cylinder one; 13. Push cylinder two; 14. Flip motor; 15. Cross arm; 16. Roller; 17. Brush roller; 18. Roller shaft; 19. Reducer motor; 20. Driving wheel one; 21. Driven wheel one; 22. Transmission belt one; 23. Driven wheel two; 24. Transmission belt two. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] Example 1

[0022] like Figures 1 to 6As shown, a deactivated catalyst recovery and impurity removal device includes a base plate 1, a mounting frame 2, a fine screen drum 3 and a drum door 4. The mounting frame 2 is mounted on the base plate 1, and the rear end of the fine screen drum 3 is rotatably mounted on the mounting frame 2 through an intermediate shaft, and the drum door 4 closes the front end of the fine screen drum 3; it also includes a driving mechanism, a coarse screen drum 5, a plurality of guide bosses 6 and a plurality of stripper plates 7. The drum door 4 is mounted on the base plate 1 through an opening and closing assembly, and the coarse screen drum 5 is concentrically mounted inside the fine screen drum 3. The front end of the coarse screen drum 5 is in sliding contact with the inner wall of the drum door 4. A plurality of slide grooves are arranged on the circumference of the outer wall of the coarse screen drum 5. Guide bosses 6 are arranged on both sides of the plurality of slide grooves of the coarse screen drum 5. A plurality of stripper plates 7 are respectively slidably inserted into the plurality of slide grooves of the coarse screen drum 5. The inner ends of the plurality of stripper plates 7 extend into the coarse screen drum 5, and the outer ends of the plurality of stripper plates 7 are in contact with the inner wall of the fine screen drum 3. The driving mechanism The structure drives the fine screen drum 3 and the coarse screen drum 5 to rotate; the opening and closing assembly includes a shaft seat 10, an arm plate 11 and a push cylinder 12, the shaft seat 10 is installed on the base plate 1, one end of the arm plate 11 is rotatably installed on the shaft seat 10, the other end of the arm plate 11 is connected to the drum door 4, one end of the push cylinder 12 is rotatably connected to the base plate 1, and the other end of the push cylinder 12 is rotatably connected to the arm plate 11; it also includes a push cylinder 2 13, a flip motor 14, a cross arm 15 and a rolling roller 16, the fixed end of the push cylinder 2 13 is installed on the mounting frame 2, the flip motor 14 is installed on the piston rod of the push cylinder 2 13, one end of the cross arm 15 is connected to the output shaft of the flip motor 14, the rolling roller 16 is installed on the other end of the cross arm 15, and a socket matching the rolling roller 16 is provided on the drum door 4, and the rolling roller 16 extends into the interior of the coarse screen drum 5 through the socket and approaches the inner wall of the coarse screen drum 5.

[0023] The sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum 5 is moved back and forth, and the sieve drum The active catalyst particles gather at the bottom of the fine screen cylinder 3 and are driven to the upper part of the fine screen cylinder 3 by the lower ends of the two stripping plates 7. When the stripping plate 7 at the rear strips the deactivated catalyst particles to the upper part of the fine screen cylinder 3, the deactivated catalyst particles flow along the stripping plate 7 at the rear to the top of the coarse screen cylinder 5. At this time, the stripping plate 7 at the front shrinks toward the inside of the coarse screen cylinder 5 under the action of gravity, so that the deactivated catalyst particles on the top of the coarse screen cylinder 5 lose their obstruction and fall forward, causing the deactivated catalyst particles to be hit and removed, and the impurities that are shaken off are discharged through the sieve holes of the fine screen cylinder 3, thereby achieving efficient separation of agglomerates and deactivated catalyst particles, and screening and removing impurities for the agglomerates and deactivated catalyst particles respectively, and breaking the agglomerates during the screening and removal process. After the impurity removal is completed, the piston rod of the push cylinder 12 extends and pushes the arm plate 11 to rotate outward around the shaft seat 10, thereby opening the cylinder door 4.

[0024] Example 2

[0025] like Figure 2 、 Figure 6 and Figure 7 As shown, on the basis of Example 1, it also includes multiple rollers 8 and special-shaped guide rails 9. The rollers 8 are rotated on the multiple material-diverting plates 7. The special-shaped guide rails 9 are installed on the inner wall of the cylinder door 4. When the cylinder door 4 is closed, the multiple rollers 8 are rollingly connected with the special-shaped guide rails 9. The special-shaped guide rails 9 drive the multiple material-diverting plates 7 to extend and retract by guiding the rollers 8.

[0026] The fine screen drum 3 and the coarse screen drum 5 rotate counterclockwise, and after the drum door 4 is closed, the special-shaped guide rail 9 rolls and guides the multiple rollers 8, so that the rollers 8 are located at the outermost side between the six o'clock and one o'clock positions. At this time, the outer end of the stripper plate 7 contacts the inner wall of the fine screen drum 3, so that the rollers 8 move to the innermost side between the one o'clock and twelve o'clock positions. At this time, the stripper plate 7 gradually shrinks inward, so that the rollers 8 are located at the innermost side between the twelve o'clock and six o'clock positions. At this time, the outer end of the stripper plate 7 is completely retracted inside the coarse screen drum 5, thereby realizing forced guidance of the multiple stripper plates 7 and improving the pushing effect of the multiple stripper plates 7 on agglomerated and deactivated catalyst particles.

[0027] Example 3

[0028] like Figures 1 to 6 As shown, on the basis of Example 1, it also includes a brush roller 17 and a roller shaft 18. The brush roller 17 is rotatably mounted on the mounting frame 2 through the roller shaft 18. A plurality of rolling brush hairs are installed on the brush roller 17, and the rolling brush hairs are pressed tightly against the outer wall of the fine screen drum 3; the driving mechanism includes a reduction motor 19, a driving wheel 20, a driven wheel 21, a transmission belt 22, a driven wheel 23 and a transmission belt 24. The reduction motor 19 is mounted on the base plate 1, the driving wheel 20 is concentrically mounted on the output shaft of the reduction motor 19, the driven wheel 21 is concentrically mounted on the intermediate shaft of the fine screen drum 3, the transmission belt 1 22 is suitably connected to the driving wheel 20 and the driven wheel 21, the driven wheel 23 is concentrically mounted on the roller shaft 18, and the transmission belt 24 is suitably connected to the driving wheel 20 and the driven wheel 23.

[0029] The reduction motor 19 drives the driving wheel 20 to rotate, and the driving wheel 20 drives the driven wheel 21 to rotate through the transmission belt 22, and the driven wheel 21 drives the fine screen drum 3 to rotate. At the same time, the driving wheel 20 drives the driven wheel 2 23 to rotate through the transmission belt 2 24, and the driven wheel 2 23 drives the roller shaft 18 and the brush roller 17 to rotate, thereby driving the fine screen drum 3 and the brush roller 17, and making the rolling brush hairs of the brush roller 17 clean the sieve holes of the fine screen drum 3 against the rotation direction of the fine screen drum 3, avoiding clogging of the sieve holes of the fine screen drum 3, and improving the impurity removal effect.

[0030] like Figures 1 to 7As shown, a deactivated catalyst recovery and impurity removal device of the present invention, when working, first puts the recovered deactivated catalyst particles into the coarse screen drum 5, pushes the cylinder 12 to close the drum door 4, and the reduction motor 19 runs to make the fine screen drum 3 and the coarse screen drum 5 rotate counterclockwise synchronously, and the coarse screen drum 5 drives multiple stripping plates 7 to rotate synchronously, and then the special-shaped guide rail 9 rolls and guides multiple rollers 8 so that the rollers 8 are located at the outermost position between the six o'clock and one o'clock positions. At this time, the outer end of the stripping plate 7 contacts the inner wall of the fine screen drum 3, so that the rollers 8 move to the innermost position between the one o'clock and twelve o'clock positions. At this time, the stripping plate 7 gradually contracts inwardly, so that the rollers 8 are located at the innermost position between the twelve o'clock and six o'clock positions. At this time, the outer end of the stripping plate 7 is completely contracted inside the coarse screen drum 5, and then the upper ends of the multiple stripping plates 7 drive the deactivated catalyst particles in the coarse screen drum 5 to the upper part of the coarse screen drum 5. The granules are then removed from the sieve 3 and the particles are then removed from the sieve 3. The granules are then removed from the sieve 3 and the particles are then removed from the sieve 3. The particles are then removed from the sieve 3 and the particles are then removed from the sieve 3.

[0031] The main functions achieved by this utility model are:

[0032] 1. Efficiently separate agglomerated and deactivated catalyst particles, and screen and remove impurities from agglomerated and deactivated catalyst particles respectively;

[0033] 2. Break up the lumps during screening and impurity removal;

[0034] 3. It can clean the sieve holes to avoid clogging and improve the impurity removal effect.

[0035] The utility model is a deactivated catalyst recovery and impurity removal device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as it can achieve its beneficial effects; the utility model is a deactivated catalyst recovery and impurity removal device, the fine screen drum 3, drum door 4, coarse screen drum 5, roller 8, special-shaped guide rail 9, push cylinder 12, push cylinder 2 13, flip motor 14, rolling roller 16, brush roller 17, roller shaft 18, reduction motor 19, driving wheel 1 20, driven wheel 1 21, transmission belt 1 22, driven wheel 2 23, and transmission belt 2 24 are purchased on the market, and technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative labor.

[0036] All technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A deactivated catalyst recovery and impurity removal device, comprising a base plate (1), a mounting frame (2), a fine screen drum (3) and a drum door (4), wherein the mounting frame (2) is mounted on the base plate (1), the rear end of the fine screen drum (3) is rotatably mounted on the mounting frame (2) via an intermediate shaft, and the drum door (4) closes the front end of the fine screen drum (3); characterized in that: The invention also includes a driving mechanism, a coarse screen cylinder (5), a plurality of guide bosses (6) and a plurality of material-diverting plates (7). The cylinder door (4) is mounted on the bottom plate (1) through an opening and closing assembly. The coarse screen cylinder (5) is concentrically mounted inside the fine screen cylinder (3). The front end of the coarse screen cylinder (5) is in sliding contact with the inner wall of the cylinder door (4). A plurality of chute grooves are arranged on the circumference of the outer wall of the coarse screen cylinder (5). Guide bosses (6) are arranged on both sides of the plurality of chute grooves of the coarse screen cylinder (5). The plurality of material-diverting plates (7) are respectively slidably inserted into the plurality of chute grooves of the coarse screen cylinder (5). The inner ends of the plurality of material-diverting plates (7) extend into the coarse screen cylinder (5). The outer ends of the plurality of material-diverting plates (7) are in contact with the inner wall of the fine screen cylinder (3). The driving mechanism drives the fine screen cylinder (3) and the coarse screen cylinder (5) to rotate.

2. The deactivated catalyst recovery and impurity removal equipment according to claim 1, characterized in that: The utility model also comprises a plurality of rollers (8) and a special-shaped guide rail (9), wherein the plurality of material-diverting plates (7) all rotate the rollers (8), and the special-shaped guide rail (9) is installed on the inner wall of the cylinder door (4). When the cylinder door (4) is closed, the plurality of rollers (8) are connected to the special-shaped guide rail (9) in a rolling manner, and the special-shaped guide rail (9) drives the plurality of material-diverting plates (7) to extend and retract by guiding the rollers (8).

3. The deactivated catalyst recovery and impurity removal equipment according to claim 1, characterized in that: The opening and closing assembly comprises an axle seat (10), an arm plate (11) and a push cylinder (12); the axle seat (10) is mounted on the base plate (1); one end of the arm plate (11) is rotatably mounted on the axle seat (10); the other end of the arm plate (11) is connected to the cylinder door (4); one end of the push cylinder (12) is rotatably connected to the base plate (1); and the other end of the push cylinder (12) is rotatably connected to the arm plate (11).

4. The deactivated catalyst recovery and impurity removal equipment according to claim 3, characterized in that: The invention also includes a second push cylinder (13), a turning motor (14), a cross arm (15) and a rolling roller (16), wherein the fixed end of the second push cylinder (13) is mounted on the mounting frame (2), the turning motor (14) is mounted on the piston rod of the second push cylinder (13), one end of the cross arm (15) is connected to the output shaft of the turning motor (14), the rolling roller (16) is mounted on the other end of the cross arm (15), a socket matching the rolling roller (16) is provided on the cylinder door (4), and the rolling roller (16) extends into the interior of the coarse screen cylinder (5) through the socket and approaches the inner wall of the coarse screen cylinder (5).

5. The deactivated catalyst recovery and impurity removal equipment according to claim 1, characterized in that: It also includes a brush roller (17) and a roller shaft (18). The brush roller (17) is rotatably mounted on the mounting frame (2) via the roller shaft (18). A plurality of roller brush hairs are mounted on the brush roller (17), and the roller brush hairs are tightly pressed against the outer wall of the fine screen cylinder (3).

6. The deactivated catalyst recovery and impurity removal equipment according to claim 5, characterized in that: The driving mechanism comprises a reduction motor (19), a driving wheel 1 (20), a driven wheel 1 (21), a transmission belt 1 (22), a driven wheel 2 (23) and a transmission belt 2 (24). The reduction motor (19) is mounted on a bottom plate (1). The driving wheel 1 (20) is concentrically mounted on the output shaft of the reduction motor (19). The driven wheel 1 (21) is concentrically mounted on the intermediate shaft of the fine screen drum (3). The transmission belt 1 (22) is sleeved to connect the driving wheel 1 (20) and the driven wheel 1 (21). The driven wheel 2 (23) is concentrically mounted on a roller shaft (18). The transmission belt 2 (24) is sleeved to connect the driving wheel 1 (20) and the driven wheel 2 (23).

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