Silver tungsten carbide graphite waste recycling device and processing method

Abstract

The application belongs to the technical field of powder metallurgy production, and discloses a silver tungsten carbide graphite waste recycling device and method, which comprises a treatment box, the outer wall of the treatment box is provided with a conveying module, the outer wall of the treatment box is provided with a discharge port, the inner wall of the treatment box is provided with a crushing roller, the inner wall of the treatment box is provided with a pressing mechanism, the outer wall of the treatment box is provided with a shielding mechanism, and the outer wall of the treatment box is provided with a screening mechanism; the screening mechanism comprises a motor, the output shaft of the motor is fixedly connected with a chain wheel A, and the outer wall of the chain wheel A is connected with a chain wheel B through a chain transmission; through cooperation of the motor and the trapezoidal block, the waste after being crushed by the crushing roller falls on the screen, and the waste is more uniformly accumulated through continuous movement of the moving frame and the screen, thereby avoiding the problem that the waste is accumulated at one place after falling on the screen, affecting the screening efficiency.

Description

Technical Field

[0001] This invention belongs to the field of powder metallurgy production technology, specifically a device and method for recycling and processing silver tungsten carbide graphite waste. Background Technology

[0002] The silver-tungsten-carbide-graphite waste recycling and treatment device is a specialized equipment for recycling waste materials containing silver, tungsten carbide, and graphite. It utilizes specific process technologies and mechanical structures to extract valuable components from these waste materials through a series of operations such as separation and purification, thereby achieving resource reuse and reducing adverse environmental impacts. It plays an important role in the field of industrial waste treatment and resource regeneration.

[0003] Silver tungsten carbide graphite waste needs to be crushed in a processing box to a suitable size before further recycling. The processing equipment uses crushing rollers to crush the waste, which falls onto a screen. The screen's holes can separate waste of suitable size for subsequent processing. Larger, incompletely crushed waste remains on the screen and needs to be crushed again to a suitable size before being discharged. In some existing technologies, the screen is usually fixed in the processing box with bolts and cannot be moved. When waste falls onto the screen, it may accumulate in one place, resulting in unevenness and affecting the screening effect. Therefore, to address the above problems, a silver tungsten carbide graphite waste recycling and processing device and method are proposed. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a silver tungsten carbide graphite waste recycling and processing device and method, which solves the problem of poor waste screening effect in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a silver tungsten carbide graphite waste recycling and processing device, comprising a processing box, a conveying module provided on the outer wall of the processing box, a discharge port provided on the outer wall of the processing box, a crushing roller provided on the inner wall of the processing box, a pressing mechanism provided on the inner wall of the processing box, a shielding mechanism provided on the outer wall of the processing box, and a screening mechanism provided on the outer wall of the processing box;

[0006] The screening mechanism includes a motor, the output shaft of which is fixedly connected to a sprocket A. The outer wall of sprocket A is connected to a sprocket B via a chain drive. The outer wall of sprocket B is fixedly connected to a rotating rod. The outer wall of the rotating rod is hinged to a trapezoidal block via a connecting rod. The inner wall of the processing box is slidably connected to a sliding rod. The inner wall of the processing box is elastically connected to a movable frame via a connecting spring. The inner wall of the movable frame is fixedly connected to a screen.

[0007] Preferably, the motor is fixedly connected to the outer wall of the processing box, and both sprockets A and B are rotatably connected to the outer wall of the processing box. One end of the connecting rod is hinged to the outer wall of the rotating rod, and the other end of the connecting rod is hinged to the outer wall of the trapezoidal block.

[0008] Preferably, one end of the connecting spring is fixedly connected to the inner wall of the processing box, and the other end of the connecting spring is fixedly connected to the outer wall of the movable frame.

[0009] Preferably, one end of the slide rod is slidably connected to the outer wall of the trapezoidal block, the other end of the slide rod is fixedly connected to the outer wall of the moving frame, and the moving frame is slidably connected to the inner wall of the processing box.

[0010] Preferably, the pressing mechanism includes a cylinder, a movable block is fixedly connected to the movable end of the cylinder, a protruding rod is fixedly connected to the outer wall of the movable block, a pressure block is fixedly connected to the bottom outer wall of the movable block, a movable rod is fixedly connected to the outer wall of the pressure block, and a slider is hinged to the outer wall of the movable rod via a hinge rod.

[0011] Preferably, the cylinder is fixedly connected to the top outer wall of the processing box, the moving block is slidably connected to the inner wall of the processing box, and the moving rod is slidably connected to the inner wall of the processing box.

[0012] Preferably, one end of the hinge rod is hinged to the outer wall of the slider, the other end of the hinge rod is hinged to the outer wall of the moving rod, and the crushing roller is rotatably connected to the outer wall of the slider.

[0013] Preferably, the shielding mechanism includes a fixed block, the inner wall of which is elastically connected to a rotating rod via a spiral spring, the outer wall of which is wrapped with a curtain, and the outer wall of which is fixedly connected to a handle.

[0014] Preferably, the fixing block is fixedly connected to the outer wall of the processing box, one end of the spiral spring is fixedly connected to the inner wall of the rotating rod, the other end of the spiral spring is fixedly connected to the inner wall of the fixing block, and the rotating rod is rotatably connected to the inner wall of the fixing block.

[0015] This application also proposes a method for recycling and treating silver tungsten carbide graphite waste, including the following steps:

[0016] S1. Start the conveying module to transport the silver tungsten carbide graphite waste from the outside to the inside of the processing box. The two sets of crushing rollers start working to perform preliminary crushing of the waste entering the processing box, so as to reduce the volume of the waste and facilitate subsequent processing.

[0017] S2. Start the motor of the screening mechanism to drive sprocket A and sprocket B to rotate synchronously. Sprocket B drives the rotating rod to rotate. The rotating rod drives the trapezoidal block to move up and down reciprocally via the connecting rod. The inclined surface of the trapezoidal block cooperates with the slide rod, so that the slide rod drives the moving frame to move back and forth laterally. Under the action of the connecting spring, a stable reciprocating motion is formed, so that the screen can screen the waste material and make the waste material accumulate more evenly, improve the screening efficiency, and the waste material that conforms to the screen mesh size falls down, while the larger waste material stays above the screen.

[0018] S3. When there is a lot of waste material above the screen, start the cylinder of the pressing mechanism. The cylinder pushes the moving block to move downward. The moving rod moves downward at the same time and moves the slider to both sides through the hinge rod, which drives the crushing roller to move to both sides to make room for the pressing block to press down. The pressing block presses down on the material in the processing box to reduce the space occupied and avoid accumulation that will affect subsequent screening.

[0019] S4. When the cylinder pushes the moving block down, the convex rod contacts the handle of the shielding mechanism and applies a downward force to the handle. The handle pulls the curtain to gradually unfold. The rotating rod rotates, and the spiral spring contracts under force. The curtain blocks the front opening of the processing box to prevent the material from splashing out of the processing box during the compression process. When the cylinder drives the convex rod to rise back to its original position, the elastic force of the spiral spring causes the rotating rod to reverse, and the curtain automatically retracts. The operator can then observe the internal material condition through the front opening of the processing box again.

[0020] S5. After screening, the crushed waste that meets the requirements falls through the screen holes and is discharged from the outlet, completing the recycling process of silver tungsten carbide graphite waste. The entire process can be repeated until all waste is processed to meet the requirements and discharged.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention utilizes the combination of a motor and trapezoidal blocks to drive the trapezoidal blocks to move vertically back and forth via sprocket A, chain, and sprocket B. A sliding rod then drives the moving frame to move horizontally back and forth. Waste material crushed by the crushing roller falls onto the screen. The continuous movement of the moving frame and screen ensures more even waste material accumulation, thus preventing waste from piling up in one place and affecting screening efficiency.

[0023] This invention utilizes the combination of cylinders and pressure blocks. The cylinders can drive the moving block and pressure block to press down. During the pressing process, the hinge rods can drive the two sets of crushing rollers to move to both sides simultaneously without affecting the pressing movement of the pressure block. The pressing of the pressure block can squeeze the larger waste material remaining on the screen, thereby reducing the space occupied by the waste material and not affecting the screening of the waste material.

[0024] This invention utilizes the cooperation of structures such as a baffle and a fixing block. During the pressing process of the moving block and the pressing block, the protrusion exerts downward pressure on the handle, causing the handle to pull the baffle to extend and block the opening at the front of the processing box. After the pressing is completed, the spiral spring will drive the baffle to automatically roll back into the fixing block, opening the opening at the front of the processing box so that the operator can observe the crushing process. This avoids the waste from splashing or popping out during the crushing process, which could affect the operator or the working environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the pressing mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the processing box of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A;

[0029] Figure 5 This is a cross-sectional view of the processing box and a schematic diagram of the pressing mechanism of the present invention;

[0030] Figure 6 This is a cross-sectional view of the fixing block and a schematic diagram of the disassembled structure of the curtain according to the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section B.

[0032] In the diagram: 1. Processing box; 2. Screening mechanism; 201. Motor; 202. Sprocket A; 203. Chain; 204. Sprocket B; 205. Rotating rod; 206. Connecting rod; 207. Trapezoidal block; 208. Slide rod; 209. Connecting spring; 210. Moving frame; 211. Screen; 3. Pressing mechanism; 301. Cylinder; 302. Moving block; 303. Pressing block; 304. Moving rod; 305. Hinge rod; 306. Sliding block; 4. Blocking mechanism; 401. Fixed block; 402. Rotating rod; 403. Scroll spring; 404. Curtain; 405. Handle; 5. Conveying module; 6. Discharge port; 7. Crushing roller; 8. Protruding rod. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 4 As shown, the present invention provides a silver tungsten carbide graphite waste recycling and processing device, including a processing box 1, a conveying module 5 and a discharge port 6 on the outer wall of the processing box 1, a crushing roller 7 and a pressing mechanism 3 on the inner wall of the processing box 1, a shielding mechanism 4 and a screening mechanism 2 on the outer wall of the processing box 1; the screening mechanism 2 includes a motor 201, a sprocket A202 fixedly connected to the output shaft of the motor 201, a sprocket B204 connected to the outer wall of the sprocket A202 via a chain 203, a rotating rod 205 fixedly connected to the outer wall of the sprocket B204, a trapezoidal block 207 hinged to the outer wall of the rotating rod 205 via a connecting rod 206, a sliding rod 208 slidably connected to the inner wall of the processing box 1, a movable frame 210 elastically connected to the inner wall of the processing box 1 via a connecting spring 209, and a screen 211 fixedly connected to the inner wall of the movable frame 210.

[0035] The above scheme is adopted: the processing box 1 is the main body of the silver tungsten carbide graphite waste recycling and processing device. The silver tungsten carbide graphite waste can be transported from the outside to the inside of the processing box 1 through the conveying module 5, and then crushed by two sets of crushing rollers 7. After crushing, the silver tungsten carbide graphite waste passes through the screening mechanism 2. The waste that is not completely crushed will remain on the screen 211, while the waste that is completely crushed will fall through the holes of the screen 211 and be discharged from the discharge port 6. The motor 201 is the power source of the screening mechanism 2. After starting, it drives the sprocket A202 to rotate. Through the transmission of the chain 203, the sprocket B204 rotates synchronously. The outer walls of both sprocket A202 and sprocket B204 are provided with tooth blocks, and the chain 203 is a ring component composed of multiple chain links. 2. When the motor 201 rotates, its outer wall toothed block meshes with the chain link of the chain 203. Under the force of the toothed block of the sprocket A202 on the chain 203, the chain 203 begins to move with the rotation of the sprocket A202 and transmits power to the sprocket B204, so that the sprocket A202 and the sprocket B204 can rotate synchronously, which is the prior art. The sprocket B204 can drive the rotating rod 205 to rotate synchronously, and through the hinge relationship between the connecting rod 206 and the trapezoidal block 207, it drives the trapezoidal block 207 to move. Since the trapezoidal block 207 is slidably connected to the outer wall of the processing box 1, it can only move up and down, so that the sprocket B204, the rotating rod 205, the connecting rod 206 and the trapezoidal block 207 perform crank-connecting rod motion, driving the trapezoidal block 207 to move up and down reciprocally.

[0036] like Figures 1 to 4 As shown, motor 201 is fixedly connected to the outer wall of processing box 1. Sprockets A202 and B204 are rotatably connected to the outer wall of processing box 1. One end of connecting rod 206 is hinged to the outer wall of rotating rod 205, and the other end of connecting rod 206 is hinged to the outer wall of trapezoidal block 207. One end of connecting spring 209 is fixedly connected to the inner wall of processing box 1, and the other end of connecting spring 209 is fixedly connected to the outer wall of moving frame 210. One end of sliding rod 208 is slidably connected to the outer wall of trapezoidal block 207, and the other end of sliding rod 208 is fixedly connected to the outer wall of moving frame 210. Moving frame 210 is slidably connected to the inner wall of processing box 1.

[0037] The above scheme is adopted: one end of the slide rod 208 is slidably connected to the inclined surface of the trapezoidal block 207. When the trapezoidal block 207 moves vertically back and forth, its inclined surface will drive the slide rod 208 to move horizontally back and forth. The slide rod 208 drives the moving frame 210 to move synchronously. When the trapezoidal block 207 and the slide rod 208 push the moving frame 210 to move a certain distance, the connecting spring 209 is stretched by force. When the trapezoidal block 207 and the slide rod 208 move in opposite directions, the moving frame 210 will return to its original position under the elastic force of the connecting spring 209, thus forming a reciprocating motion. The screen 211 inside the moving frame 210 performs a screening operation on the material in the processing box 1 under the reciprocating motion of the moving frame 210. The material that meets the aperture of the screen 211 falls down, while the material that does not meet the aperture remains above the screen 211 for further crushing and processing. This improves the screening efficiency and avoids the accumulation of waste in one place on the screen 211, making it more uniform.

[0038] like Figure 5 As shown, the pressing mechanism 3 includes a cylinder 301. A movable block 302 is fixedly connected to the movable end of the cylinder 301. A protruding rod 8 is fixedly connected to the outer wall of the movable block 302. A pressing block 303 is fixedly connected to the outer wall of the bottom end of the movable block 302. A movable rod 304 is fixedly connected to the outer wall of the pressing block 303. A slider 306 is hinged to the outer wall of the movable rod 304 via a hinge rod 305. The cylinder 301 is fixedly connected to the top outer wall of the processing box 1. The movable block 302 is slidably connected to the inner wall of the processing box 1. The movable rod 304 is slidably connected to the inner wall of the processing box 1. One end of the hinge rod 305 is hinged to the outer wall of the slider 306. The other end of the hinge rod 305 is hinged to the outer wall of the movable rod 304. The crushing roller 7 is rotatably connected to the outer wall of the slider 306.

[0039] Using the above scheme: When cylinder 301 starts, its movable end pushes moving block 302 downward. The protruding rod 8 on the outer wall of moving block 302 descends together with moving block 302. When the protruding rod 8 descends, it will exert pressure on the handle 405 in the blocking mechanism 4, driving the blocking mechanism 4. The pressing block 303 at the bottom of moving block 302 is used to press down the material in processing box 1, so that the material can be better processed during the crushing process of crushing roller 7, and avoid material accumulation affecting the crushing effect. The moving rod 304 on moving block 302 is slidably connected to the inner wall of processing box 1, ensuring that the moving rod 304 will move synchronously with moving block 302. Vertical movement; through the hinged relationship between the hinge rod 305 and the slider 306, when the moving rod 304 moves down with the moving block 302, it will cause the two sets of hinge rods 305 to flip to both sides, driving the two sets of sliders 306 to move to both sides; since the crushing roller 7 is rotatably connected to the outer wall of the slider 306, when the slider 306 moves to both sides, it will drive the two sets of crushing rollers 7 to move synchronously, so that the crushing roller 7 will not block the pressing block 303 from pressing down; when the moving end of the cylinder 301 drives the pressing block 303 to move upward and reset, the moving rod 304 will drive the two sets of sliders 306 to move towards the middle at the same time through the hinge rod 305, so that the crushing roller 7 moves synchronously and resets.

[0040] like Figures 6 to 7 As shown, the shielding mechanism 4 includes a fixed block 401. The inner wall of the fixed block 401 is elastically connected to a rotating rod 402 via a spiral spring 403. A curtain 404 is wrapped around the outer wall of the rotating rod 402. A handle 405 is fixedly connected to the outer wall of the curtain 404. The fixed block 401 is fixedly connected to the outer wall of the processing box 1. One end of the spiral spring 403 is fixedly connected to the inner wall of the rotating rod 402, and the other end of the spiral spring 403 is fixedly connected to the inner wall of the fixed block 401. The rotating rod 402 is rotatably connected to the inner wall of the fixed block 401. The handle 405 contacts the protruding rod 8.

[0041] The above scheme is adopted as follows: When the spiral spring 403 is in the initial state, it keeps the rotating rod 402 fixed, and the curtain 404 is wrapped around the outer wall of the rotating rod 402. At this time, the curtain 404 is in the retracted state, which does not affect the normal feeding or other operations of the processing box 1. The operator can observe the crushing of the internal material through the opening at the front of the processing box 1. When the cylinder 301 pushes the moving block 302 down, and the convex rod 8 contacts the handle 405, the convex rod 8 applies a downward force to the handle 405. The handle 405 pulls the curtain 404 to gradually unfold. The other end of the curtain 404 drives the rotating rod 402 to rotate, and the spiral spring 403 is compressed by force. After the curtain 404 is unfolded, it can block the front opening of the processing box 1 to prevent the material from splashing out of the processing box 1 during the compression process, which plays a role in protection and material collection control. When the cylinder 301 drives the convex rod 8 to rise back to its original position, under the elastic force of the spiral spring 403, the rotating rod 402 reverses, and the curtain 404 can be automatically retracted.

[0042] This application also proposes a method for recycling and treating silver tungsten carbide graphite waste, including the following steps:

[0043] S1. Start the conveying module 5 to transport the silver tungsten carbide graphite waste from the outside to the inside of the processing box 1. The two sets of crushing rollers 7 start working to perform preliminary crushing operations on the waste entering the processing box 1, so that the volume of the waste is reduced and it is easier to process later.

[0044] S2. Start the motor 201 of the screening mechanism 2, which drives the sprocket A202 and sprocket B204 to rotate synchronously. The sprocket B204 drives the rotating rod 205 to rotate. The rotating rod 205 drives the trapezoidal block 207 to move up and down reciprocally via the connecting rod 206. The inclined surface of the trapezoidal block 207 cooperates with the slide rod 208, so that the slide rod 208 drives the moving frame 210 to move laterally reciprocally. Under the action of the connecting spring 209, a stable reciprocating motion is formed, so that the screen 211 can screen the waste material while making the waste material accumulate more evenly, improving the screening efficiency. Waste material that meets the aperture of the screen 211 falls down, while larger waste material remains above the screen 211.

[0045] S3. When there is a lot of waste material above the screen 211, the cylinder 301 of the pressing mechanism 3 is activated. The cylinder 301 pushes the moving block 302 to move downward. The moving rod 304 moves downward at the same time and moves the slider 306 to both sides through the hinge rod 305, which drives the crushing roller 7 to move to both sides to make room for the pressing block 303 to press down. The pressing block 303 presses down the material in the processing box 1 to reduce the space occupied and avoid accumulation that will affect subsequent screening.

[0046] S4. When cylinder 301 pushes moving block 302 down, protruding rod 8 contacts handle 405 of shielding mechanism 4 and applies downward force to handle 405. Handle 405 pulls curtain 404 to gradually unfold. Rotating rod 402 rotates, and spiral spring 403 is compressed. Curtain 404 shields the front opening of processing box 1 to prevent material from splashing out of processing box 1 during compression. When cylinder 301 drives protruding rod 8 to rise back to its original position, the elastic force of spiral spring 403 causes rotating rod 402 to reverse, and curtain 404 automatically retracts. Operator can once again observe the internal material condition through the front opening of processing box 1.

[0047] S5. After screening, the crushed waste that meets the requirements falls through the screen 211 holes and is discharged from the discharge port 6, completing the recycling process of silver tungsten carbide graphite waste. The whole process can be repeated until all waste is processed to meet the requirements and discharged.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silver tungsten carbide graphite waste recycling and processing device, comprising a processing tank (1), characterized in that: The outer wall of the processing box (1) is provided with a conveying module (5), the outer wall of the processing box (1) is provided with a discharge port (6), the inner wall of the processing box (1) is provided with a crushing roller (7), the inner wall of the processing box (1) is provided with a pressing mechanism (3), the outer wall of the processing box (1) is provided with a shielding mechanism (4), and the outer wall of the processing box (1) is provided with a screening mechanism (2). The screening mechanism (2) includes a motor (201), the output shaft of the motor (201) is fixedly connected to a sprocket A (202), the outer wall of the sprocket A (202) is connected to a sprocket B (204) via a chain (203), the outer wall of the sprocket B (204) is fixedly connected to a rotating rod (205), the outer wall of the rotating rod (205) is hinged to a trapezoidal block (207) via a connecting rod (206), the trapezoidal block (207) is slidably connected to the outer wall of the processing box (1) and can only move up and down, the inner wall of the processing box (1) is slidably connected to a sliding rod (208), the inner wall of the processing box (1) is elastically connected to a moving frame (210) via a connecting spring (209), and the inner wall of the moving frame (210) is fixedly connected to a screen (211). One end of the slide rod (208) is slidably connected to the outer wall of the trapezoidal block (207), and the other end of the slide rod (208) is fixedly connected to the outer wall of the moving frame (210). The moving frame (210) is slidably connected to the inner wall of the processing box (1). The pressing mechanism (3) includes a cylinder (301), a movable block (302) is fixedly connected to the movable end of the cylinder (301), a protruding rod (8) is fixedly connected to the outer wall of the movable block (302), a pressing block (303) is fixedly connected to the bottom outer wall of the movable block (302), a movable rod (304) is fixedly connected to the outer wall of the pressing block (303), and a slider (306) is hinged to the outer wall of the movable rod (304) through a hinge rod (305). The crushing roller (7) is rotatably connected to the outer wall of the slider (306).

2. The silver tungsten carbide graphite waste recycling and treatment device according to claim 1, characterized in that: The motor (201) is fixedly connected to the outer wall of the processing box (1). The sprocket A (202) and sprocket B (204) are rotatably connected to the outer wall of the processing box (1). One end of the connecting rod (206) is hinged to the outer wall of the rotating rod (205), and the other end of the connecting rod (206) is hinged to the outer wall of the trapezoidal block (207).

3. The silver tungsten carbide graphite waste recycling and treatment device according to claim 1, characterized in that: One end of the connecting spring (209) is fixedly connected to the inner wall of the processing box (1), and the other end of the connecting spring (209) is fixedly connected to the outer wall of the moving frame (210).

4. The silver tungsten carbide graphite waste recycling and treatment device according to claim 1, characterized in that: The cylinder (301) is fixedly connected to the top outer wall of the processing box (1), the moving block (302) is slidably connected to the inner wall of the processing box (1), and the moving rod (304) is slidably connected to the inner wall of the processing box (1).

5. The silver tungsten carbide graphite waste recycling and treatment device according to claim 1, characterized in that: One end of the hinge rod (305) is hinged to the outer wall of the slider (306), and the other end of the hinge rod (305) is hinged to the outer wall of the moving rod (304).

6. The silver tungsten carbide graphite waste recycling and treatment device according to claim 1, characterized in that: The shielding mechanism (4) includes a fixed block (401), the inner wall of the fixed block (401) is elastically connected to a rotating rod (402) by a spiral spring (403), the outer wall of the rotating rod (402) is wrapped with a curtain (404), and the outer wall of the curtain (404) is fixedly connected with a handle (405).

7. The silver tungsten carbide graphite waste recycling and treatment device according to claim 6, characterized in that: The fixing block (401) is fixedly connected to the outer wall of the processing box (1), one end of the spiral spring (403) is fixedly connected to the inner wall of the rotating rod (402), the other end of the spiral spring (403) is fixedly connected to the inner wall of the fixing block (401), the rotating rod (402) is rotatably connected to the inner wall of the fixing block (401), and the handle (405) is in contact with the protruding rod (8).

8. A method for recycling and treating silver tungsten carbide graphite waste, applied to the silver tungsten carbide graphite waste recycling and treatment device as described in claim 7, characterized in that: Includes the following steps: S1. Start the conveying module (5) to transport the silver tungsten carbide graphite waste from the outside to the inside of the processing box (1). The two sets of crushing rollers (7) start working to perform preliminary crushing operation on the waste entering the processing box (1) to reduce the volume of the waste and facilitate subsequent processing. S2. Start the motor (201) of the screening mechanism (2), drive the sprocket A (202) and sprocket B (204) to rotate synchronously, drive the rotating rod (205) to rotate, and drive the trapezoidal block (207) to move up and down reciprocally through the connecting rod (206). The inclined surface of the trapezoidal block (207) cooperates with the slide rod (208), so that the slide rod (208) drives the moving frame (210) to move horizontally back and forth. Under the action of the connecting spring (209), a stable reciprocating motion is formed, so that the screen (211) can screen the waste material while making the waste material accumulate more evenly, improving the screening efficiency. Waste material that meets the aperture of the screen (211) falls down, and larger waste material stays above the screen (211). S3. When there is a lot of waste material above the screen (211), start the cylinder (301) of the pressing mechanism (3). The cylinder (301) pushes the moving block (302) to move downward. The moving rod (304) moves downward in sync and moves the slider (306) to both sides through the hinge rod (305), which drives the crushing roller (7) to move to both sides to make room for the pressing block (303) to press down. The pressing block (303) presses down on the material in the processing box (1) to reduce the space occupied and avoid accumulation that affects subsequent screening. S4. When the cylinder (301) pushes the moving block (302) down, the protruding rod (8) contacts the handle (405) of the shielding mechanism (4) and applies a downward force to the handle (405). The handle (405) pulls the curtain (404) to gradually unfold. The rotating rod (402) rotates, and the spiral spring (403) is compressed. The curtain (404) shields the front opening of the processing box (1) to prevent the material from splashing out of the processing box (1) during the compression process. When the cylinder (301) drives the protruding rod (8) to rise back to its original position, the elastic force of the spiral spring (403) causes the rotating rod (402) to reverse, and the curtain (404) automatically retracts. The operator can then observe the internal material condition through the front opening of the processing box (1) again. S5. After screening, the crushed waste that meets the requirements falls through the holes of the screen (211) and is discharged from the outlet (6), completing the recycling process of silver tungsten carbide graphite waste. The whole process can be repeated until all waste is processed to meet the requirements and discharged.

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