A recycling and processing device for zinc electrowinning used cathode plates

Abstract

The present invention discloses a device for recycling and processing used cathode plates in zinc electrolysis. The device comprises a base and a conveyor. The conveyor is mounted on both sides of the base, and the conveyor further comprises a left conveyor belt and a right conveyor belt. The base is also provided with a cutting device, a cleaning device, a shaping device, and a slot milling device. The device can cut and remove corroded portions of the used cathode plates using a semi-automatic work platform, and then re-slot the conductive crossbeam after cleaning, and finally weld the two together. This device integrates the five processes of shearing, cleaning, shaping, slot milling, and welding the used cathode plates onto a single work platform, enabling convenient and rapid recycling of the used cathode plates, reducing the labor required in subsequent electrolysis processes, and shortening the processing time of the used cathode plates.

Description

Technical Field

[0001] The invention relates to the technical field of cathode plate processing, in particular to a recycling and processing device for zinc electrowinning used cathode plates. Background Art

[0002] Cathode plates are a commonly used electrode material in the hydrometallurgical industry. They receive metal ions during electrochemical reactions and rapidly reduce substances. When current flows through them, they absorb metal ions from the electrolyte and reduce them to metal-rich substances. However, worn cathode plates are severely corroded above and below the electrolyte surface, limiting their lifespan and making them inaccessible for repeated use. This wastes resources and necessitates refurbishment and processing before they can be reused.

[0003] After searching, the inventor found that the prior art can refer to a device for realizing automatic circulation processing of cathode plates in the subsequent stage of electrolytic zinc electrolysis disclosed in publication number CN203602730U, which includes an electrolytic cell, a manipulator guide rail, a manipulator and a subsequent cathode plate processing device. The subsequent cathode plate processing device includes a loading rack, a knocking device, a small knife device, a large knife device, a whole plate device, a polishing device and a unloading rack in sequence along the cathode plate transmission direction, and the cathode plates are transmitted between each device through a transmission chain.

[0004] In actual use of the above technical solution, the processing device used is only to polish and reshape the old electrode plate after stripping for reuse. However, this is actually difficult to remove the corroded part of the surface of the cathode plate, because the corrosion of the plate surface mainly occurs at the position exposed to the liquid surface. Under the action of the reaction between the current and the electrolyte, corrosion will occur about 5 cm above and below here. If the corroded part is forcibly polished, the polished part of the cathode plate surface will become thinner. The thinned cathode plate is actually not convenient for secondary use. It is also inconvenient to reassemble the cathode plate and the conductive beam, which will increase the cost of use.

[0005] Now, a new type of recycling and processing device for zinc electrowinning old cathode plates is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a recycling and processing device for zinc electrowinning old cathode plates to solve the problems raised in the above background technology that the corroded parts on the cathode plate surface are difficult to clean and the old plates are difficult to reuse.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A recycling and processing device for zinc electrolytic old cathode plates, comprising a base and a conveying device, wherein conveying devices are installed on the left and right sides of the base, and the conveying device also includes a left conveyor belt and a right conveyor belt. A cutting device, a cleaning device, a shaping device, and a milling device are also provided on the base. The cutting device that can cut the corroded part of the cathode plate is installed on the left side of the base and is located above the left conveyor belt. The cleaning device that can clean the plate surface is installed in the middle of the base. The shaping device and the milling device that can level the plate surface and groove the top of the cathode plate are installed on the right side of the base and are located above the right conveyor belt, and the milling device is arranged on the right side of the shaping device.

[0008] As a further technical solution of the present invention, the cutting device also includes a positioning splash guard, a slide, a motor 1, and a cutting tool. A positioning splash guard is installed on the left side of the top of the base, and a slide is slidably installed on the right side of the top inside the positioning splash guard. Motor 1 is fixed on the left side of the lower end of the slide, and a cutting tool is movably connected to the right side of the lower end of the slide. A control handle extending from the positioning splash guard is provided on the top of the slide.

[0009] As a further technical solution of the present invention, the positioning splash shield is made of transparent material, and cathode plate inlets and outlets are provided on the left and right sides of the positioning splash shield. A positioning pressure plate for positioning the feed cathode plate is provided on the cathode plate inlet and outlet on the left.

[0010] As a further technical solution of the present invention, the cleaning device also includes a trough body, a support frame, a liquid pump, a liquid inlet pipe, a movable frame, a water pool, a high-pressure nozzle, and a lifting mechanism. A trough body is arranged on the left side of the center of the base, and a water pool is fixed at the bottom of the trough body. The support frame is connected to the base frame above the trough body, and liquid inlet pipes are fixed on both sides of the support frame. A liquid pump is installed on the top of the liquid inlet pipe. Movable frames that can control the steering of the high-pressure nozzle are fixed on both sides below the top plate of the support frame, and a high-pressure nozzle is installed at the lower end of the movable frame. A lifting mechanism is installed in the center of the support frame.

[0011] As a further technical solution of the present invention, the lifting mechanism also includes a reel, a bracket, a second motor, a filter plate, a balance bar, and a cable. The bracket is installed at the center of the top of the support frame, the front end of the bracket is installed with the second motor, the rear end of the bracket is movably connected with the reel, and the central axis of the reel is wrapped with a cable, a balance bar is fixed below the cable, and the filter plate is horizontally fixed between the balance bars, and the balance bars are symmetrically fixed in front and behind the top of the filter plate. The reel can wind the cable and lift the filter plate.

[0012] As a further technical solution of the present invention, the shaping device also includes a fixed frame, a hydraulic cylinder, a shaping plate, a base, a cylinder, and a push plate. A fixed frame is installed on the right side of the top of the base, and a hydraulic cylinder is fixed on the left side of the top plate of the fixed frame. The shaping plate is fixed at the bottom of the piston rod of the hydraulic cylinder. A right conveyor belt is installed on the right side of the center of the base. A base is connected between the front and back of the center of the top of the base, and cylinders are fixed at the front and rear ends of the left side of the base respectively, and a push plate is fixed between the front and back of the left side of the cylinder piston rod.

[0013] As a further technical solution of the present invention, the milling device also includes a sliding base, a frame, a pin, a milling cutter, and a limit frame. The sliding base is slidably installed on the top plate side of the fixed frame, and the lower end of the sliding base is slidably installed with a frame and the frame can be positioned on the sliding base by a pin. A milling cutter is installed below the frame, and limit frames are provided on the front and rear sides of the base below the milling cutter to limit the conductive beam on the right conveyor belt.

[0014] Based on the above embodiment, the present invention also provides another embodiment: a method for recycling used cathode plates of electrolytic zinc, which specifically includes the following steps:

[0015] S1. The welding portion between the old cathode plate and the conductive beam is sheared and separated by a shearing device. At the same time, the device shears off the corroded portion of the plate surface.

[0016] S2. Clean the board surface, the conductive beam, and the conductive head (copper) on the conductive beam respectively by a cleaning device;

[0017] S3, straightening the conductive beam by a shaping device;

[0018] S4, the conductive beam is transferred to the limit frame for positioning, and then a rectangular groove of the thickness of the new plate surface is milled out by the milling device;

[0019] S5. Finally, insert the new aluminum plate (cut and cleaned plate) into the conductive beam slot and weld it again on the welding platform. Then it can be used, thus realizing recycling.

[0020] The beneficial effects of the present invention are: the device can cut and remove the corroded part of the old cathode plate through a semi-automatic working platform, and re-groove the conductive beam after cleaning, and finally weld the two together. The five processes of cutting, cleaning, shaping, milling and welding the old cathode plate are integrated into one working platform, thereby realizing convenient and fast recycling of the old cathode plate, reducing the labor workload of subsequent electrolysis processes, and shortening the processing time of the old cathode plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of the positioning splash shield of the present invention;

[0023] Figure 3 This is a schematic diagram of the front cross-sectional structure of the support frame of the present invention;

[0024] Figure 4 This is a schematic diagram of the front cross-sectional structure of the pool of the present invention;

[0025] Figure 5 It is a schematic diagram of the front cross-sectional structure of the base of the present invention.

[0026] In the figure: 1. Base; 2. Left conveyor belt; 3. Old cathode plate; 4. Positioning splash shield; 5. Motor 1; 6. Slide; 7. Cutting tool; 8. Trough; 9. Support frame; 10. Liquid pump; 11. Liquid inlet pipe; 12. Reel; 13. Bracket; 14. Motor 2; 15. Movable frame; 16. Fixed frame; 17. Hydraulic cylinder; 18. Sliding base; 19. Milling cutter; 20. Right conveyor belt; 21. Protective cover; 22. Shaping plate; 23. Base; 24. Water tank; 25. Filter plate; 26. Balance bar; 27. Cable; 28. High-pressure nozzle; 29. ​​Pin; 30. Frame; 31. Cylinder; 32. Push plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 An embodiment of the present invention provides: a recycling and processing device for zinc electrolytic old cathode plates, comprising a base 1 and a conveying device, wherein conveying devices are installed on the left and right sides of the base 1, and the conveying device further comprises a left conveyor belt 1 and a right conveyor belt 20. A cutting device, a cleaning device, a shaping device, and a milling device are also provided on the base. The cutting device capable of cutting the corroded part of the cathode plate is installed on the left side of the base and is located above the left conveyor belt 1. The cleaning device capable of cleaning the plate surface is installed in the middle of the base. The shaping device and the milling device capable of leveling the plate surface and slotting the top of the cathode plate are installed on the right side of the base and are located above the right conveyor belt 20, and the milling device is arranged on the right side of the shaping device.

[0029] The cutting device also includes a positioning splash shield 4, a slide 6, a motor 5, and a cutting tool 7. The positioning splash shield 4 is installed on the left side of the top of the base 1, and the slide 6 is slidably installed on the right side of the top inside the positioning splash shield 4. The motor 5 is fixed on the left side of the lower end of the slide 6, and the cutting tool 7 is movably connected to the right side of the lower end of the slide 6. A control handle (not shown in the figure) that extends out of the positioning splash shield 4 is provided on the top of the slide 6.

[0030] The positioning splash shield 4 is made of a transparent material. Cathode plate inlets and outlets are provided on the left and right sides of the positioning splash shield 4. A positioning pressure plate for positioning the feed cathode plate is provided on the cathode plate inlet and outlet on the left side.

[0031] Specifically, if Figure 1 、 Figure 2 As shown, the old cathode plate 3 is placed on the left conveyor belt 2, and slides from left to right into the positioning splash shield 4 as the left conveyor belt 2 runs. After being positioned by the positioning pressure plate, the motor 5 is turned on, and the cutting tool 7 is moved back and forth by the control handle on the slide 6, thereby cutting off the corroded part of the top of the old cathode plate 3, and then conveyed to the pool 24 under the trough body 8 for immersion and cleaning by the high-pressure nozzle 28; during this process, the user can observe the cutting situation in real time through the positioning splash shield 4 made of transparent material, and at the same time position the feeding cathode plate through the positioning pressure plate.

[0032] The cleaning device also includes a trough body 8, a support frame 9, a liquid pump 10, a liquid inlet pipe 11, a movable frame 15, a water pool 24, a high-pressure nozzle 28, and a lifting mechanism. The trough body 8 is arranged on the left side of the center of the base 1, and the water pool 24 is fixed to the bottom of the trough body 8. The upper frame of the base 1 above the trough body 8 is connected to the support frame 9, and the liquid inlet pipe 11 is fixed on both sides of the support frame 9. The top of the liquid inlet pipe 11 is installed with a liquid pump 10, and movable frames 15 that can control the steering of the high-pressure nozzle 28 are fixed on both sides below the top plate of the support frame 9, and the high-pressure nozzle 28 is installed at the lower end of the movable frame 15. A lifting mechanism is installed in the center of the support frame 9.

[0033] The lifting mechanism also includes a reel 12, a bracket 13, a second motor 14, a filter plate 25, a balance bar 26, and a cable 27. The bracket 13 is installed at the center of the top of the support frame 9, and the second motor 14 is installed at the front end of the bracket 13. The rear end of the bracket 13 is movably connected to the reel 12, and a cable 27 is wound around the central axis of the reel 12. A balance bar 26 is fixed below the cable 27, and the filter plate 25 is fixed laterally between the balance bars 26 and the balance bars 26. The balance bars 26 are symmetrically fixed in front and behind the top of the filter plate 25. The reel 12 can wind the cable 27 and lift the filter plate 25.

[0034] Specifically, if Figure 1 、 Figure 3 and Figure 4As shown, the filter plate 25 inside the water pool 24 is used to carry the old cathode plate 3, the conductive beam and the conductive head on the conductive beam. The water pipe connected to the liquid inlet pipe 11 is connected and the liquid pump 10 is turned on to guide the clean water to the high-pressure nozzle 28 under the movable frame 15, and then sprayed on the object to be cleaned for flushing. After the end, start the motor 2 14, rotate the reel 12 above the bracket 13, and raise the filter plate 25 connected to the balance bar 26 by winding the cable 27, lift the cleaned and soaked objects and drain the water.

[0035] The shaping device also includes a fixed frame 16, a hydraulic cylinder 17, a shaping plate 22, a base 23, a cylinder 31, and a push plate 32. The fixed frame 16 is installed on the right side of the top of the base 1, and the hydraulic cylinder 17 is fixed to the left side of the top plate of the fixed frame 16. The shaping plate 22 is fixed to the bottom of the piston rod of the hydraulic cylinder 17. The right conveyor belt 20 is installed on the right side of the center of the base 1. The base 23 is connected between the front and back of the center of the top of the base 1, and the cylinder 31 is fixed at the front and rear end of the left side of the base 23 respectively. The push plate 32 is fixed between the front and back of the left side of the piston rod of the cylinder 31.

[0036] The milling device also includes a sliding base 18, a frame 30, a pin 29, a milling cutter 19, and a limit frame (not shown in the figure). The sliding base 18 is slidably installed on the top plate side of the fixed frame 16, and the lower end of the sliding base 18 is slidably installed with the frame 30 and the frame 30 can be positioned on the sliding base 18 by the pin 29. The milling cutter 19 is installed below the frame 30, and the limit frames that can limit the conductive beam on the right conveyor belt are provided on the front and rear sides of the base 1 below the milling cutter 19.

[0037] Specifically, if Figure 1 and Figure 5 As shown, the objects that have finished cleaning will be placed on the base 23, the cylinder 31 will be turned on and the push plate 32 connected to the piston rod will be guided, so that the conductive beam will move from left to right to the shaping plate, and will be pressed and shaped by the shaping plate 22 connected to the hydraulic cylinder 17 until the plate surface is flat, and then continue to move to the right. The position between the frame 30 and the sliding base 18 will be adjusted in advance according to the depth of the groove to be cut and reinforced with the pin 29, and then the sliding base 18 will be controlled to move back and forth to mill out a rectangular groove of the thickness of the new plate surface, and then the new aluminum plate cut and cleaned plate will be inserted into the conductive beam groove, and will be welded again on the welding platform (the welding platform is located on the base 1 on the right side of the milling device) and can be used.

[0038] Based on the above embodiment, the present invention also provides another embodiment: a method for recycling used cathode plates of electrolytic zinc, which specifically includes the following steps:

[0039] S1. The welding portion between the old cathode plate and the conductive beam is sheared and separated by a shearing device. At the same time, the device shears off the corroded portion of the plate surface.

[0040] S2. Clean the board surface, the conductive beam, and the conductive head (copper) on the conductive beam respectively by a cleaning device;

[0041] S3, straightening the conductive beam by a shaping device;

[0042] S4, the conductive beam is transferred to the positioning platform for positioning, and then a rectangular groove having the thickness of the new plate surface is milled out by the milling device;

[0043] S5. Finally, insert the new aluminum plate (cut and cleaned plate) into the conductive beam slot and weld it again on the welding platform. Then it can be used, thus realizing recycling.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A recycling and processing device for zinc electrowinning used cathode plates, comprising a base and a conveyor, wherein the conveyor is mounted on both sides of the base, and wherein: The conveying device also includes a left conveyor belt and a right conveyor belt. The base is also provided with a cutting device, a cleaning device, a shaping device, and a milling device. The cutting device that can cut the corroded part of the cathode plate is installed on the left side of the base and is located above the left conveyor belt. The cleaning device that can clean the plate surface is installed in the middle of the base. The shaping device that can level the plate surface and the milling device that grooves the top of the cathode plate are installed on the right side of the base and are located above the right conveyor belt. The milling device is arranged on the right side of the shaping device. The processing device is used to perform the following steps: S1. Using a cutting device, the weld between the old cathode plate and the conductive beam is sheared and separated. At the same time, the cutting device cuts off the corroded part of the plate surface; S2. Clean the board surface, the conductive beam, and the conductive head on the conductive beam respectively by a cleaning device; S3, straightening the conductive beam by a shaping device; S4, the conductive beam is transferred to the limit frame for positioning, and then a rectangular groove of the thickness of the new plate surface is milled out by the milling device; S5. Finally, the cut and cleaned plates are inserted into the conductive beam slots and welded again on the welding platform. Then, the plates can be used, thus realizing recycling.

2. The device for recycling and processing used zinc electrodeposition cathode plates according to claim 1, characterized in that: The cutting device also includes a positioning splash guard, a slide, a motor 1, and a cutting tool. A positioning splash guard is installed on the left side of the top of the base, and a slide is slidably installed on the right side of the top inside the positioning splash guard. Motor 1 is fixed on the left side of the lower end of the slide, and a cutting tool is movably connected to the right side of the lower end of the slide. A control handle extending out of the positioning splash guard is provided on the top of the slide.

3. The device for recycling and processing zinc electrowinning used cathode plates according to claim 2, characterized in that: The positioning splash shield is made of transparent material. Cathode plate inlets and outlets are provided on the left and right sides of the positioning splash shield. A positioning pressure plate for positioning the feed cathode plate is provided on the cathode plate inlet and outlet on the left side.

4. The device for recycling and processing zinc electrowinning used cathode plates according to claim 1, characterized in that: The cleaning device also includes a trough body, a support frame, a liquid pump, a liquid inlet pipe, a movable frame, a water pool, a high-pressure nozzle, and a lifting mechanism. A trough body is arranged on the left side of the center of the base, and a water pool is fixed at the bottom of the trough body. The support frame is connected to the base frame above the trough body, and liquid inlet pipes are fixed on both sides of the support frame. A liquid pump is installed on the top of the liquid inlet pipe. Movable frames that can control the steering of the high-pressure nozzle are fixed on both sides below the top plate of the support frame, and a high-pressure nozzle is installed at the lower end of the movable frame. A lifting mechanism is installed in the center of the support frame.

5. The device for recycling and processing used zinc electrodeposition cathode plates according to claim 4, characterized in that: The lifting mechanism also includes a reel, a bracket, a second motor, a filter plate, a balance bar, and a cable. The bracket is installed at the center of the top of the support frame, the second motor is installed at the front end of the bracket, the rear end of the bracket is movably connected to the reel, and a cable is wound around the central axis of the reel. A balance bar is fixed below the cable, and the filter plate is fixed horizontally between the balance bars. The balance bars are symmetrically fixed in front and behind the top of the filter plate. The reel can wind the cable and lift the filter plate.

6. The device for recycling and processing used zinc electrodeposition cathode plates according to claim 1, characterized in that: The shaping device also includes a fixed frame, a hydraulic cylinder, a shaping plate, a base, a cylinder, and a push plate. A fixed frame is installed on the right side of the top of the base, and a hydraulic cylinder is fixed on the left side of the top plate of the fixed frame. The shaping plate is fixed at the bottom of the piston rod of the hydraulic cylinder. A right conveyor belt is installed on the right side of the center of the base. The base is connected between the front and back of the center of the top of the base, and cylinders are fixed at the front and rear ends of the left side of the base respectively. A push plate is fixed between the front and back of the left side of the cylinder piston rod.

7. The device for recycling and processing used zinc electrodeposition cathode plates according to claim 1, characterized in that: The slot milling device also includes a sliding base, a frame, a pin, a milling cutter, and a limit frame. The sliding base is slidably installed on the top plate side of the fixed frame, and the lower end of the sliding base can be slidably installed with a frame and the frame can be positioned on the sliding base through the pin. A milling cutter is installed below the frame, and limit frames are provided on the front and rear sides of the base below the milling cutter to limit the conductive beam on the right conveyor belt.

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