Multi-stage treatment and recovery device for tin stripping waste liquid

Abstract

The invention discloses a tin stripping waste liquid multi-stage treatment and recovery device, and relates to the field of waste liquid treatment, the tin stripping waste liquid multi-stage treatment and recovery device comprises a treatment box and a liquid inlet pipe, the liquid inlet pipe is installed above the treatment box to guide waste liquid to be treated, a movable cylinder is arranged in the treatment box, and treatment chambers are formed in the movable cylinder at equal angles; the upper portions of the treatment chambers are designed to be of an open structure, the liquid inlet pipe is located above the treatment chambers, the movable cylinder and the treatment box are rotationally connected, the upper portion of the movable cylinder is connected with a first motor, rotation of the movable cylinder is controlled, and the treatment chambers located below the liquid inlet pipe are switched. According to the multi-stage treatment and recovery device for the tin stripping waste liquid, the multiple treatment chambers can be driven to move and switch through rotation of the movable cylinder, so that the waste liquid of the liquid inlet pipe is continuously collected, and the waste liquid is driven to the position below the liquid storage chamber along with rotation of the movable cylinder after being collected in the treatment chambers, so that chemical agents are added; and the waste liquid collection of the other group of treatment chambers is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of waste liquid treatment, and in particular to a multi-stage treatment and recovery device for tin stripping waste liquid. Background Art

[0002] When processing circuit boards, etc., the components need to be detinned. The waste liquid after detinning contains more harmful substances and needs to be processed and recycled. At present, the treatment of this kind of waste liquid is generally carried out by chemical reaction.

[0003] Prior art 1 (application number CN202410960233.X, Chinese patent published on October 15, 2024) A titanium alloy pipe pickling waste liquid recovery device and a multi-stage treatment method, including a box body, a filter plate and a cleaning device, the box body has a filter chamber, the filter plate is connected to the inner wall of the filter chamber, the filter plate separates the filter chamber into filter section one and filter section two, the box body has a liquid inlet, the cleaning device includes a power motor, a power screw, a collection frame and a scraper, the filter plate surface is provided with a limit groove for accommodating the collection frame, the power motor is connected to the outer wall of the box body, the power motor motor shaft passes through the outer wall of the box body and is coaxially connected to the power screw, and the scraper is threadedly connected to the outer wall of the power screw. The scraper and collecting frame are set in this application, and the impurities on the filter plate surface enter the inner cavity of the collecting frame to collect the impurities, so that the impurities are not easy to clog the filter plate surface, thereby improving the filtering efficiency of the filter plate for waste liquid, shortening the recovery and processing cycle of the waste liquid, and thus reducing the cost of waste liquid recovery and processing; Prior art 2 (application number CN202121249326.X, Chinese patent published on December 7, 2021) A waste liquid treatment device in wet zinc smelting production, comprising a support frame, a crystallization filter plate, a blowing fan, a sliding groove, a sliding sealing plate, a push-pull control rod, a wastewater treatment reaction box, a semiconductor heat conducting plate, an electric heating wire, a sulfate feeding box, a motor, a rotating rod, a stirring shaft, a connecting pipe, a feed port, a slag filter and a baffle plate, wherein the crystallization filter plate is arranged on the support frame, the blowing fan is arranged on the crystallization filter plate, and the sliding groove is arranged on the support frame. This application belongs to the technical field of wet zinc smelting production, and specifically is a waste liquid treatment device in wet zinc smelting production. It effectively solves the problem of low wastewater treatment efficiency generated after wet zinc smelting in the current market, which affects production efficiency, and direct discharge causes pollution and waste of resources. It realizes multi-stage filtration, reduces pollution to the environment caused by emissions, improves production efficiency, and has the characteristics of thorough extraction and improved resource utilization.

[0004] When the current waste liquid treatment device is performing chemical agent addition treatment, since there is a certain ratio between the agent and the waste liquid, the waste liquid needs to be completely added to the device first, and then the agent is added. That is, the waste liquid cannot be added continuously during the waste liquid treatment, resulting in the device being unable to treat the continuously discharged waste liquid, and some waste liquids need to add different chemical agents in sequence to react. The convenience of adding agents is low, which reduces the equipment's efficiency in purifying the waste liquid. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-stage treatment and recovery device for tin stripping waste liquid, so as to solve the problem raised in the above background technology that when the current waste liquid treatment device is performing chemical agent addition treatment, due to the certain ratio between the agent and the waste liquid, it is necessary to first add the waste liquid completely into the device during treatment, and then add the agent, that is, the waste liquid cannot be added continuously during the waste liquid treatment, resulting in the device being unable to treat the continuously discharged waste liquid.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-stage treatment and recovery device for tin stripping waste liquid, comprising a treatment box and a liquid inlet pipe, wherein the liquid inlet pipe is installed above the treatment box to guide the waste liquid to be treated, a movable cylinder is arranged inside the treatment box, and a treatment chamber is opened at an equal angle inside the movable cylinder, and the upper part of the treatment chamber is designed in an open structure, the liquid inlet pipe is located above the treatment chamber, a rotating connection is formed between the movable cylinder and the treatment box, and a first motor is connected above the movable cylinder to control the rotation of the movable cylinder to switch the treatment chamber located below the liquid inlet pipe, a liquid storage chamber is arranged above the treatment box, and an electromagnetic valve is arranged below the liquid storage chamber, and the lower part of the liquid storage chamber is connected to the upper end of the treatment chamber, the treatment chamber switched from below the liquid inlet pipe enters below the liquid storage chamber to add chemical agents, a lower discharge port is opened below the treatment chamber, and an automatic sealing mechanism is arranged inside the lower discharge port, and a discharge mechanism is arranged below the treatment box.

[0007] To further optimize the technical solution, a control valve is installed in the middle of the liquid inlet pipe to control the liquid inlet speed of the liquid inlet pipe, and an automatic closing mechanism is provided below the liquid inlet pipe to close the liquid inlet pipe when the processing chamber moves.

[0008] To further optimize the technical solution, the automatic closing mechanism includes a conduction plate, a blocking block and a conical block; The conduction plate is fixed inside the liquid inlet pipe, and an opening is arranged in the middle of the conduction plate; The blocking block is arranged below the conducting plate, and an up-and-down sliding structure is formed between the blocking block and the liquid inlet pipe; The conical block is arranged below the blocking block, and when the movable cylinder rotates, the conical block is squeezed to push the blocking block to move upward.

[0009] To further optimize the technical solution, an auxiliary rod is fixed above the conical block, and a connecting rod is nested above the auxiliary rod, the upper end of the connecting rod is fixedly connected to the blocking block, and a reset spring is provided between the auxiliary rod and the connecting rod.

[0010] To further optimize the technical solution, a liquid filtering mechanism is provided below the liquid inlet pipe to filter the liquid entering the processing chamber.

[0011] To further optimize the technical solution, the liquid filtering mechanism includes a mounting block, a magnetic block and an adsorption magnet; A mounting block is arranged below the liquid inlet pipe, a filter screen is arranged in the inner concave of the mounting block, and a horizontal sliding structure is formed between the mounting block and the processing box; Magnetic block, fixed to the right side of the mounting block; The adsorption magnet is fixed on the outside of the processing box, and the adsorption magnet and the magnetic block attract each other to position the mounting block.

[0012] To further optimize the technical solution, the automatic blocking mechanism includes a sealing block and a transmission block; A sealing block is arranged above the lower discharge port to seal the lower discharge port under the action of gravity; The transmission block is fixed below the sealing block, and an up-and-down sliding structure is formed between the transmission block and the movable cylinder.

[0013] To further optimize the technical solution, the discharge mechanism includes a discharge pipe and a waterproof retractor; A discharge pipe is arranged below the processing box; The waterproof expansion joint is arranged inside the discharge pipe and is located below the transmission block. The waterproof expansion joint pushes the transmission block to move upward to open the lower discharge port.

[0014] To further optimize the technical solution, a stirring rod is rotatably installed inside the processing chamber, and the stirring rod is evenly distributed inside the processing chamber, and a rotational connection is formed between the stirring rod and the processing chamber, and a transmission mechanism is arranged above the stirring rod to control the rotation of the stirring rod.

[0015] Further optimizing the technical solution, the transmission mechanism includes a first gear, a transmission ring, a second gear, a transmission gear and a second motor; A first gear is fixed to the upper end of the stirring rod; A transmission ring is arranged on the outer side of the first gear and is meshedly connected with the first gear; A second gear is arranged on the outer side of the transmission ring and is meshed with the transmission ring, and the second gear is rotationally connected to the movable cylinder; A transmission gear is rotatably mounted inside the processing box, and the transmission gear is an incomplete gear, and the transmission gear is meshed with a second gear; The second motor is connected to the transmission gear to control the rotation of the transmission gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The rotation of the movable cylinder can drive multiple processing chambers to move and switch, so as to continuously collect the waste liquid in the liquid inlet pipe. After the waste liquid is collected in the processing chamber, it is driven to the bottom of the liquid storage chamber as the movable cylinder rotates to add chemical agents without affecting the collection of waste liquid by another group of processing chambers, so that the device can continuously process the waste liquid.

[0017] The amount of liquid in the liquid storage chamber is controlled by an electromagnetic valve, and a plurality of liquid storage chambers are provided on the processing box. When moving, the processing chamber can pass under different liquid storage chambers in turn and stay there, so as to add different reagents, realize graded treatment of waste liquid, and improve the convenience of using the device.

[0018] The liquid inlet speed of the liquid inlet pipe can be controlled by the control valve, thereby controlling the residence time of the treatment chamber below the liquid storage chamber and controlling the time required for waste liquid treatment.

[0019] The opening and closing of the liquid inlet pipe can be automatically controlled by the rotation of the movable cylinder, so that the liquid inlet pipe can be automatically closed when the processing chamber moves away from under the liquid inlet pipe to avoid liquid leakage. The waste liquid that has been processed can be uniformly discharged through the discharge pipe.

[0020] The liquid in the treatment chamber can be stirred by the rotation of the stirring rod, so that the waste liquid can be evenly treated, and the arrangement of multiple groups of stirring rods and transmission mechanisms can improve the stirring uniformity and reduce the setting of power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the top-sectional structure of the processing box of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the movable cylinder of the present invention; Figure 5 This is a bottom view of the structure of the movable cylinder of the present invention; Figure 6 This is a schematic diagram of the main cross-sectional structure of the processing box of the present invention; Figure 7 This is a schematic diagram of the internal structure of the liquid inlet pipe of the present invention; Figure 8 This is a schematic diagram of the main cross-sectional structure of the movable cylinder of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at a in the middle; Fig.10 This is a schematic diagram of the top view of the structure of the first gear of the present invention; Fig.11 For the present invention Fig.10 The enlarged structural diagram at b in the middle; Fig.12 It is a schematic diagram of the side cross-section structure of the discharge pipe of the present invention.

[0022] In the figure: 1. processing box; 2. liquid inlet pipe; 3. control valve; 4. movable cylinder; 5. processing chamber; 6. lower discharge port; 7. discharge pipe; 8. first motor; 9. liquid storage chamber; 10. solenoid valve; 11. conduction plate; 12. blocking block; 13. conical block; 14. auxiliary rod; 15. connecting rod; 16. reset spring; 17. mounting block; 1701, filter screen; 18. magnetic block; 19. adsorption magnet; 20. sealing block; 21. transmission block; 22. waterproof telescopic device; 23. stirring rod; 24. first gear; 25. transmission ring; 26. second gear; 27. transmission gear; 28. second motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 12, Embodiment 1: The present invention provides the following technical solutions: A multi-stage treatment and recovery device for tin stripping waste liquid, comprising a treatment box 1 and a liquid inlet pipe 2, the liquid inlet pipe 2 is installed above the treatment box 1 to guide the waste liquid to be treated, a movable cylinder 4 is arranged inside the treatment box 1, and a treatment chamber 5 is opened at an equal angle inside the movable cylinder 4, and the upper part of the treatment chamber 5 is designed in an open structure, the liquid inlet pipe 2 is located above the treatment chamber 5, the movable cylinder 4 and the treatment box 1 are rotatably connected, and a first motor 8 is connected above the movable cylinder 4 to control the rotation of the movable cylinder 4 to switch the treatment chamber 5 located below the liquid inlet pipe 2, a liquid storage chamber 9 is arranged above the treatment box 1, and an electromagnetic valve 10 is arranged below the liquid storage chamber 9, and the lower part of the liquid storage chamber 9 is connected to the upper end of the treatment chamber 5, the treatment chamber 5 switched from the lower part of the liquid inlet pipe 2 enters the lower part of the liquid storage chamber 9 to add chemical agents, a lower discharge port 6 is opened below the treatment chamber 5, and an automatic blocking mechanism is arranged inside the lower discharge port 6, and a discharge mechanism is arranged below the treatment box 1. When in use, chemical agents that react with wastewater can be added to the liquid storage chamber 9. Two groups of liquid storage chambers 9 are arranged. Agents with a sequential order of addition can be arranged in the two groups of liquid storage chambers 9 along the moving direction of the treatment chamber 5, so that they can be added to the treatment chamber 5 in sequence for use. The waste liquid to be treated is added to the treatment chamber 5 in the treatment box 1 through the liquid inlet pipe 2. After the waste liquid is added, the treatment chamber 5 is moved by the rotation of the movable cylinder 4 to be moved to the bottom of the liquid storage chamber 9. A certain amount of waste liquid in the treatment chamber 5 is added through the liquid storage chamber 9 to make it react. At the same time, the next group of treatment chambers 5 continue to collect the waste liquid.

[0025] Embodiment 2: Based on Embodiment 1, a control valve 3 is installed in the middle of the liquid inlet pipe 2 to control the liquid inlet speed of the liquid inlet pipe 2, and an automatic closing mechanism is arranged below the liquid inlet pipe 2 to close the liquid inlet pipe 2 when the processing chamber 5 moves. The automatic closing mechanism includes a conduction plate 11, a blocking block 12 and a conical block 13. The conduction plate 11 is fixed inside the liquid inlet pipe 2, and the conduction plate 11 is opened in the middle. The blocking block 12 is arranged below the conduction plate 11, and the blocking block 12 and the liquid inlet pipe 2 are connected. An up-and-down sliding structure is formed between the two parts, and a conical block 13 is arranged below the blocking block 12. When the movable cylinder 4 rotates, the conical block 13 is squeezed to push the blocking block 12 to move upward. An auxiliary rod 14 is fixed above the conical block 13, and a connecting rod 15 is nested above the auxiliary rod 14. The upper end of the connecting rod 15 is fixedly connected to the blocking block 12, and a return spring 16 is arranged between the auxiliary rod 14 and the connecting rod 15. A liquid filtering mechanism is arranged below the liquid inlet pipe 2 to filter the liquid entering the processing chamber 5. The liquid passes through The filter mechanism includes a mounting block 17, a magnetic block 18 and an adsorption magnet 19. The mounting block 17 is arranged below the liquid inlet pipe 2, and a filter screen 1701 is arranged in a concave inside the mounting block 17. A horizontal sliding structure is formed between the mounting block 17 and the processing box 1. The magnetic block 18 is fixed to the right side of the mounting block 17. The adsorption magnet 19 is fixed to the outside of the processing box 1. The adsorption magnet 19 and the magnetic block 18 attract each other to position the mounting block 17. The automatic blocking mechanism includes a sealing block 20 and a transmission block 21. The sealing block 20 is arranged above the lower discharge port 6 to seal the lower discharge port 6 under the action of gravity. The transmission block 21 is fixed below the sealing block 20, and an up and down sliding structure is formed between the transmission block 21 and the movable cylinder 4. The discharge mechanism includes a discharge pipe 7 and a waterproof telescopic device 22. The discharge pipe 7 is arranged below the treatment box 1. The waterproof telescopic device 22 is arranged inside the discharge pipe 7, and the waterproof telescopic device 22 is located below the transmission block 21. The waterproof telescopic device 22 pushes the transmission block 21 to move upward to open the lower discharge port 6. When the waste liquid enters the treatment chamber 5, it can be filtered through the filter screen 1701. The subsequent installation block 17 can be pulled out of the treatment box 1 to clean the impurities on the filter screen 1701. The control valve 3 can control the flow of the liquid inlet pipe 2. When the treatment chamber 5 is located below the liquid inlet pipe 2, the conduction plate 11 is in an open state. When the subsequent movable cylinder 4 rotates, the movable cylinder 4 will squeeze the conical block 13, so that the conical block 13 pushes the blocking block 12 upward to move. The blocking block 12 blocks the conduction plate 11 and closes the liquid inlet pipe 2. When the subsequent treatment chamber 5 moves back to the bottom of the liquid inlet pipe 2, the conical block 13 moves down, and the conduction plate 11 opens again. The treated waste liquid reaches the top of the discharge pipe 7 with the rotation of the movable cylinder 4, and the transmission block 21 is pushed upward by the waterproof telescopic device 22 to drive the sealing block 20 to move upward, so that the lower discharge port 6 can be opened to discharge the treated waste liquid.

[0026] Embodiment 3: On the basis of embodiment 1, it is disclosed that a stirring rod 23 is rotatably installed inside the processing chamber 5, and the stirring rod 23 is evenly distributed inside the processing chamber 5, and a rotational connection is formed between the stirring rod 23 and the processing chamber 5, and a transmission mechanism is arranged above the stirring rod 23 to control the rotation of the stirring rod 23, and the transmission mechanism includes a first gear 24, a transmission ring 25, a second gear 26, a transmission gear 27 and a second motor 28, the first gear 24 is fixed to the upper end of the stirring rod 23, the transmission ring 25 is arranged on the outer side of the first gear 24 and the first gear 24 is meshed connection, the second gear 26 is arranged on the outer side of the transmission ring 25 and the transmission ring 25 is meshed connection, and the second gear 26 and the movable cylinder 4 are rotationally connected, the transmission gear 27 is rotatably installed inside the processing box 1, and the transmission gear 27 is an incomplete gear, and the transmission gear 27 and the second gear 26 are meshed, and the second motor 28 is connected to the transmission gear 27 to control the rotation of the transmission gear 27. The liquid in the treatment chamber 5 can be stirred by the stirring rod 23 so that it is evenly mixed with the medicine added to the liquid storage chamber 9. The transmission gear 27 is controlled to rotate by the second motor 28. The transmission gear 27 can drive the second gear 26 to rotate. The second gear 26 drives the transmission ring 25 to rotate. The transmission ring 25 drives the first gear 24 to rotate, so that multiple groups of stirring rods 23 rotate synchronously to improve the uniformity of stirring.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage treatment and recovery device for tin stripping waste liquid, comprising a treatment box (1) and a liquid inlet pipe (2), wherein the liquid inlet pipe (2) is installed above the treatment box (1) to guide the waste liquid to be treated; Features: A movable cylinder (4) is provided inside the processing box (1), and processing chambers (5) are provided inside the movable cylinder (4) at equal angles. The liquid inlet pipe (2) is located above the processing chamber (5). The movable cylinder (4) and the processing box (1) are rotatably connected, and a first motor (8) is connected above the movable cylinder (4) to control the rotation of the movable cylinder (4) and switch the processing chamber (5) located below the liquid inlet pipe (2). A liquid storage chamber (9) is provided above the processing box (1), and a solenoid valve (10) is provided below the liquid storage chamber (9). The bottom of the liquid storage chamber (9) is connected to the upper end of the processing chamber (5). A lower discharge port (6) is provided below the processing chamber (5), and an automatic blocking mechanism is provided inside the lower discharge port (6). A discharge mechanism is provided below the processing box (1).

2. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 1, characterized in that: A control valve (3) is installed in the middle of the liquid inlet pipe (2) to control the liquid inlet speed of the liquid inlet pipe (2), and an automatic closing mechanism is provided below the liquid inlet pipe (2) to close the liquid inlet pipe (2) when the processing chamber (5) moves.

3. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 2, characterized in that: The automatic closing mechanism comprises a conduction plate (11), a blocking block (12) and a conical block (13); A conduction plate (11) is fixed inside the liquid inlet pipe (2), and an opening is arranged in the middle of the conduction plate (11); A blocking block (12) is arranged below the conducting plate (11), and an up-and-down sliding structure is formed between the blocking block (12) and the liquid inlet pipe (2); The conical block (13) is arranged below the blocking block (12), and when the movable cylinder (4) rotates, the conical block (13) is squeezed to push the blocking block (12) to move upward.

4. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 3, characterized in that: An auxiliary rod (14) is fixed above the conical block (13), and a connecting rod (15) is nested above the auxiliary rod (14); the upper end of the connecting rod (15) is fixedly connected to the blocking block (12), and a return spring (16) is provided between the auxiliary rod (14) and the connecting rod (15).

5. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 1, characterized in that: A liquid filtering mechanism is provided below the liquid inlet pipe (2) to filter the liquid entering the processing chamber (5).

6. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 5, characterized in that: The liquid filtering mechanism comprises a mounting block (17), a magnetic block (18) and an adsorption magnet (19); A mounting block (17) is arranged below the liquid inlet pipe (2), and a filter screen (1701) is arranged in a concave shape inside the mounting block (17), and a horizontal sliding structure is formed between the mounting block (17) and the processing box (1); A magnetic block (18) fixed to the right side of the mounting block (17); The adsorption magnet (19) is fixed on the outside of the processing box (1), and the adsorption magnet (19) and the magnetic block (18) attract each other to position the mounting block (17).

7. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 1, characterized in that: The automatic blocking mechanism comprises a sealing block (20) and a transmission block (21); A sealing block (20) is arranged above the lower discharge port (6) and seals the lower discharge port (6) under the action of gravity; The transmission block (21) is fixed below the sealing block (20), and an up-and-down sliding structure is formed between the transmission block (21) and the movable cylinder (4).

8. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 7, characterized in that: The discharge mechanism comprises a discharge pipe (7) and a waterproof telescopic device (22); A discharge pipe (7) is arranged below the processing box (1); The waterproof retractor (22) is arranged inside the discharge pipe (7), and the waterproof retractor (22) is located below the transmission block (21). The waterproof retractor (22) pushes the transmission block (21) to move upward to open the lower discharge port (6).

9. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 1, characterized in that: A stirring rod (23) is rotatably mounted inside the processing chamber (5), and the stirring rod (23) is evenly distributed inside the processing chamber (5). The stirring rod (23) and the processing chamber (5) are rotatably connected, and a transmission mechanism is arranged above the stirring rod (23) to control the rotation of the stirring rod (23).

10. A multi-stage treatment and recovery device for tin stripping waste liquid according to claim 9, characterized in that: The transmission mechanism comprises a first gear (24), a transmission ring (25), a second gear (26), a transmission gear (27) and a second motor (28); A first gear (24) is fixed to the upper end of the stirring rod (23); A transmission ring (25) is arranged on the outer side of the first gear (24) and is meshedly connected with the first gear (24); A second gear (26) is arranged on the outside of the transmission ring (25) and is meshed with the transmission ring (25), and the second gear (26) is rotationally connected to the movable cylinder (4); A transmission gear (27) is rotatably mounted inside the processing box (1), and the transmission gear (27) is an incomplete gear, and the transmission gear (27) is meshed with the second gear (26); The second motor (28) is connected to the transmission gear (27) to control the rotation of the transmission gear (27).

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