A pretreatment device for regenerating precious metals from spent catalysts

Abstract

This utility model discloses a pretreatment device for regenerating precious metals from waste catalysts, belonging to the field of waste catalyst pretreatment technology. It includes a base plate with a rotating plate on top. A first support and a second support are fixedly connected to the top of the rotating plate, and a heating furnace is fixedly connected to both supports. A second mounting block is fixedly connected to the top of the base plate, and a first lead screw is rotatably connected to the second mounting block. A ball nut is screwed onto the side surface of the first lead screw, and a connecting strip is hinged to the top of the ball nut. The end of the connecting strip away from the ball nut is hinged to the bottom of the rotating plate. Through the coordinated use of these devices, when the first motor drives the first lead screw to rotate, the connecting strip can push the rotating plate to flip. When the rotating plate flips, the heating furnace also tilts accordingly. After the heating furnace tilts, the waste catalyst slides down, effectively improving the unloading efficiency of the waste catalyst and reducing the workload of the workers.

Description

Technical Field

[0001] This utility model relates to the field of waste catalyst pretreatment technology, specifically a pretreatment device for waste catalysts before regenerating precious metals. Background Technology

[0002] Waste catalysts refer to solid catalyst materials that have lost their original catalytic efficiency due to carbon buildup, poisoning, sintering, or loss of active components during industrial catalytic reactions such as chemical and petroleum refining, and need to be replaced or regenerated. Their components usually include a support, metallic active components, and adsorbed harmful substances. They have high recycling value (precious metals can be extracted), but direct disposal can easily pollute the environment. Currently, the main treatment methods include thermal regeneration, hydrometallurgy, and safe landfill. The appropriate process should be selected according to the type of catalyst, the cause of deactivation, and environmental regulations.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220907583U) discloses a sorting mechanism for a device for recovering palladium from waste catalysts. The mechanism includes a heating furnace and a grinder. The discharge port of the grinder is connected to the inlet of the heating furnace. A connecting bracket is connected to the outer side of the heating furnace, and a drive cylinder is connected to the connecting bracket. The drive shaft of the drive cylinder passes through the side of the heating furnace and is connected to a connecting rod. A sorting pusher assembly that moves inside the heating furnace is connected to the connecting rod.

[0004] In the aforementioned patent, the pusher plate drives the rake nail to move inside the heating furnace, which can flatten the waste catalyst, reduce the possibility of waste catalyst accumulation, and enable the waste catalyst to be heated evenly, thus improving the working efficiency of the device. However, the device lacks an automatic unloading mechanism. After the waste catalyst is heated, it may still require the intervention of personnel to unload the waste catalyst from the heating furnace. This manual unloading method is not only inefficient, but also increases the burden on the personnel.

[0005] Therefore, this invention provides a pretreatment device for regenerating precious metals from waste catalysts to solve the above-mentioned problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a pretreatment device for regenerating precious metals from waste catalysts, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for regenerating precious metals from waste catalyst, comprising a base plate, a rotating plate on the top of the base plate, a first support and a second support fixedly connected to the top of the rotating plate, a heating furnace fixedly connected to both the first support and the second support, a second mounting block fixedly connected to the top of the base plate, a first lead screw rotatably connected to the second mounting block, a ball nut screwed onto the side surface of the first lead screw, a connecting strip hinged to the top of the ball nut, the end of the connecting strip away from the ball nut hinged to the bottom of the rotating plate, a first motor fixedly connected to the top of the base plate, and the output end of the first motor fixedly connected to one end of the first lead screw.

[0010] As a preferred technical solution of this application, a first mounting block and a support plate are fixedly connected to the top of the base plate, a rotating shaft is fixedly connected to the first mounting block, a connecting block is rotatably connected to the side surface of the rotating shaft, and the top of the connecting block is fixedly connected to the bottom of the rotating plate.

[0011] As a preferred technical solution of this application, a heating plate is fixedly connected to the inner wall of the heating furnace, a feeding hopper is fixedly connected to one side of the heating furnace, the inner cavity of the feeding hopper is connected to the inner cavity of the heating furnace, and a discharge port is opened on the side of the heating furnace away from the feeding hopper, and a sealing plate is rotatably connected inside the discharge port.

[0012] As a preferred technical solution of this application, a second lead screw is rotatably connected to the first bracket, the second lead screw passes through the heating furnace, a movable plate is screwed to the side surface of the heating furnace, the movable plate is located inside, and a rake nail is fixedly connected to the bottom of the movable plate.

[0013] As a preferred technical solution of this application, a second motor is fixedly connected to the side of the first bracket away from the heating furnace, and the output end of the second motor is fixedly connected to one end of the second lead screw.

[0014] As a preferred technical solution of this application, a limiting rod penetrating the moving plate is provided inside the heating furnace, and both ends of the limiting rod are fixedly connected to the inner wall of the heating furnace.

[0015] (III) Beneficial Effects

[0016] This utility model has a simple structure and is easy to use. By setting up a first lead screw, a first motor, a ball nut, and a connecting bar, when the first motor drives the first lead screw to rotate, the connecting bar can push the rotating plate to flip. When the rotating plate flips, the heating furnace will also tilt. After the heating furnace tilts, the waste catalyst will slide down, which effectively improves the unloading efficiency of the waste catalyst and reduces the burden on the staff. Attached Figure Description

[0017] Figure 1 A schematic diagram of a pretreatment device for regenerating precious metals from waste catalysts;

[0018] Figure 2 A schematic diagram of the installation of a transfer plate in a pretreatment device for regenerating precious metals from waste catalysts;

[0019] Figure 3 This is a schematic diagram of the installation of a movable plate in a pretreatment device for regenerating precious metals from waste catalysts.

[0020] Figure 4 A cross-sectional view of a heating furnace in a pretreatment device for regenerating precious metals from waste catalysts;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0022] In the picture:

[0023] 1. Base plate; 2. Rotating plate; 3. First support; 4. Second support; 5. Heating furnace; 6. First mounting block; 7. Rotating shaft; 8. Connecting block; 9. Second mounting block; 10. First lead screw; 11. First motor; 12. Ball bearing nut; 13. Connecting strip; 14. Feed hopper; 15. Discharge port; 16. Sealing plate; 17. Second lead screw; 18. Second motor; 19. Moving plate; 20. Limiting rod; 21. Support plate; 22. Heating plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a pretreatment device for regenerating precious metals from waste catalysts, such as... Figure 1 , Figure 2 and Figure 4 As shown, the system includes a base plate 1, a rotating plate 2 on the top of the base plate 1, a first bracket 3 and a second bracket 4 fixedly connected to the top of the rotating plate 2, a heating furnace 5 fixedly connected to the first bracket 3 and the second bracket 4, a second mounting block 9 fixedly connected to the top of the base plate 1, a first lead screw 10 rotatably connected to the second mounting block 9, a ball nut 12 screwed to the side surface of the first lead screw 10, a connecting strip 13 hinged to the top of the ball nut 12, the end of the connecting strip 13 away from the ball nut 12 hinged to the bottom of the rotating plate 2, a first motor 11 fixedly connected to the top of the base plate 1, and the output end of the first motor 11 fixedly connected to one end of the first lead screw 10.

[0026] The top of the base plate 1 is fixedly connected to the first mounting block 6 and the support plate 21 respectively. The first mounting block 6 is fixedly connected to the rotating shaft 7. The side surface of the rotating shaft 7 is rotatably connected to the connecting block 8. The top of the connecting block 8 is fixedly connected to the bottom of the rotating plate 2.

[0027] A heating plate 22 is fixedly connected to the inner wall of the heating furnace 5. A feeding hopper 14 is fixedly connected to one side of the heating furnace 5. The inner cavity of the feeding hopper 14 is connected to the inner cavity of the heating furnace 5. A discharge port 15 is opened on the side of the heating furnace 5 away from the feeding hopper 14. A sealing plate 16 is rotatably connected inside the discharge port 15.

[0028] When heating the spent catalyst, the outlet 15 needs to be sealed first by the sealing plate 16, and then the spent catalyst is put into the heating furnace 5 through the feed hopper 14. After the spent catalyst enters the heating furnace 5, the heating plate 22 can be energized. The energized heating plate 22 will release heat to heat the spent catalyst. After the heating treatment is completed, the outlet 15 can be opened first, and then the first motor 11 can be started. The first motor 11 is a servo motor. When the first motor 11 is working, it can drive the first lead screw 10 to rotate. At this time, the ball nut 12... Due to the influence of the threaded engagement and the restriction of the connecting bar 13, it can slide on the first lead screw 10 and can push the rotating plate 2 to flip through the connecting bar 13. When the rotating plate 2 flips, the heating furnace 5 will also tilt accordingly. At this time, the waste catalyst inside the heating furnace 5 will also slide down. The staff only needs to prepare a receiving frame in advance to receive it, which effectively improves the unloading efficiency of the waste catalyst. The support plate 21 is set to assist the staff in calibrating the rotating plate 2. When the support plate 21 is in contact with the rotating plate 2, it means that the rotating plate 2 is in a horizontal state, and it can also provide support for the rotating plate 2.

[0029] Furthermore, in order to ensure that the spent catalyst is heated evenly, such as... Figure 3 , Figure 4 and Figure 5 As shown, a second lead screw 17 is rotatably connected to the first bracket 3. The second lead screw 17 passes through the heating furnace 5. A movable plate 19 is screwed onto the side surface of the heating furnace 5. The movable plate 19 is located inside the furnace. A rake nail is fixedly connected to the bottom of the movable plate 19.

[0030] A second motor 18 is fixedly connected to the side of the first bracket 3 away from the heating furnace 5, and the output end of the second motor 18 is fixedly connected to one end of the second lead screw 17.

[0031] The heating furnace 5 is equipped with a limiting rod 20 that penetrates the movable plate 19. Both ends of the limiting rod 20 are fixedly connected to the inner wall of the heating furnace 5.

[0032] After the waste catalyst enters the interior of the heating furnace 5 through the feed hopper 14, the second motor 18 can be started. The second motor 18 is a servo motor. When the second motor 18 is working, it can drive the second lead screw 17 to rotate. When the second lead screw 17 rotates, the moving plate 19 will drive the rake nail to move inside the heating furnace 5. When the moving plate 19 and the rake nail move, they can evenly push the waste catalyst inside the heating furnace 5, so that the waste catalyst can be heated evenly. The setting of the limiting rod 20 provides a limiting and guiding effect for the moving plate 19, so that the moving plate 19 can move according to the preset trajectory, reducing the possibility of shaking and deviation of the moving plate 19, and improving the stability of the moving plate 19 during movement.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for regenerating precious metals from waste catalysts, comprising a base plate (1), characterized in that: A rotating plate (2) is provided on the top of the base plate (1). A first bracket (3) and a second bracket (4) are fixedly connected to the top of the rotating plate (2). A heating furnace (5) is fixedly connected to the first bracket (3) and the second bracket (4). A second mounting block (9) is fixedly connected to the top of the base plate (1). A first lead screw (10) is rotatably connected to the second mounting block (9). A ball nut (12) is screwed onto the side surface of the first lead screw (10). A connecting strip (13) is hinged to the top of the ball nut (12). One end of the connecting strip (13) away from the ball nut (12) is hinged to the bottom of the rotating plate (2). A first motor (11) is fixedly connected to the top of the base plate (1). The output end of the first motor (11) is fixedly connected to one end of the first lead screw (10).

2. The pretreatment device for regenerating precious metals from waste catalyst according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a first mounting block (6) and a support plate (21). A rotating shaft (7) is fixedly connected to the first mounting block (6). A connecting block (8) is rotatably connected to the side surface of the rotating shaft (7). The top of the connecting block (8) is fixedly connected to the bottom of the rotating plate (2).

3. The pretreatment device for regenerating precious metals from waste catalyst according to claim 1, characterized in that: A heating plate (22) is fixedly connected to the inner wall of the heating furnace (5). A feeding hopper (14) is fixedly connected to one side of the heating furnace (5). The inner cavity of the feeding hopper (14) is connected to the inner cavity of the heating furnace (5). A discharge port (15) is opened on the side of the heating furnace (5) away from the feeding hopper (14). A sealing plate (16) is rotatably connected inside the discharge port (15).

4. The pretreatment device for regenerating precious metals from waste catalyst according to claim 1, characterized in that: A second lead screw (17) is rotatably connected to the first bracket (3). The second lead screw (17) passes through the heating furnace (5). A movable plate (19) is screwed onto the side surface of the heating furnace (5). The movable plate (19) is located inside the furnace. A rake nail is fixedly connected to the bottom of the movable plate (19).

5. The pretreatment device for regenerating precious metals from waste catalyst according to claim 4, characterized in that: The first bracket (3) is fixedly connected to a second motor (18) on the side away from the heating furnace (5), and the output end of the second motor (18) is fixedly connected to one end of the second lead screw (17).

6. The pretreatment device for regenerating precious metals from waste catalyst according to claim 4, characterized in that: The heating furnace (5) is provided with a limiting rod (20) that penetrates the moving plate (19) inside. Both ends of the limiting rod (20) are fixedly connected to the inner wall of the heating furnace (5).

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