A recycling device and method for removing paint from waste aluminum

Abstract

The present invention relates to the technical field of waste aluminum recycling, in particular to a recycling device and method for removing paint from waste aluminum. The device includes a paint removal tank. A sorting component is provided on the left side of the paint removal tank. A bracket is provided on the sorting component. A conveyor belt is provided at the upper end inside the bracket. A feed pipe is installed on the top surface of the bracket. A crushing component is provided at the upper end inside the feed pipe. Two crushing rollers are provided on the crushing component. A rotating shaft is sleeved in the middle of the crushing roller. Both outer peripheral walls of the two ends of the rotating shaft are rotatably connected to the feed pipe. The rotating shaft penetrates through the inner wall of the feed pipe and extends to the outside. A first belt pulley is sleeved on one of the rotating shafts extending to the outside. A dust removal component is provided at the lower end inside the feed pipe. A feeding component is installed on the top surface of the left end of the feed pipe. The magnetic suction roller magnetically removes substances such as scrap iron in the waste aluminum raw materials, improves the purity of the waste aluminum materials, provides higher-quality raw materials for subsequent treatment or reuse, improves the recycling rate of the waste aluminum materials, realizes precise and rapid sorting, and improves the sorting quality.

Description

Technical Field

[0001] The present invention relates to the technical field of waste aluminum recycling, and particularly to a waste aluminum paint stripping recycling device and method thereof. Background Art

[0002] Metal recycling is an important technical means to save metal resources and realize metal reuse. In the process of waste aluminum recycling, paint stripping is a necessary step because the paint layer attached to the aluminum surface will affect the reuse of aluminum. Paint stripping technologies mainly include physical methods and chemical methods. Physical methods mainly use mechanical force to peel the paint layer from the aluminum surface, while chemical methods use chemical agents to react with the paint layer to dissolve or decompose it, so as to fall off from the aluminum surface;

[0003] After retrieval, a Chinese patent with the publication number CN110057194B provides a waste aluminum can surface paint stripping treatment device, including a machine body. The lower end inside the left end face of the machine body is provided with an inlet, and the lower end inside the right end face of the machine body is provided with an outlet. Lifting devices are arranged on the left and right sides inside the machine body. A vibration device is arranged in the middle of the lifting devices. A power device is arranged below the lifting devices and the vibration device. The lifting device includes a rising cavity communicated with the right side of the inlet. A descending cavity is communicated with the left side of the outlet. A rotating column is arranged through the upper and lower parts in the rising cavity and the descending cavity and can rotate. A spiral plate is fixedly arranged on the circumferential surface of the rotating column; The present invention can well shed the carbon particles after carbonizing the paint during the paint stripping process, increase the carbonization and shedding time by increasing the transportation path, and improve the extraction effect of aluminum;

[0004] However, it is found in the use process that before the paint stripping treatment by this device, impurities such as iron substances and dust are easy to interfere with the paint stripping effect, reduce the recycling efficiency and purity of waste aluminum, and incomplete impurity cleaning is easy to cause more waste and pollutants during the paint stripping process, increasing the difficulty and cost of environmental protection treatment. The incompletely cleaned impurities are easy to remain in the recycled aluminum, affecting the reuse value and product quality of aluminum, and being unfavorable for the recycling use of waste aluminum paint stripping. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a waste aluminum paint stripping recycling device and method thereof, which solve the technical problems that before the paint stripping treatment by this device, impurities such as iron substances and dust are easy to interfere with the paint stripping effect, reduce the recycling efficiency and purity of waste aluminum, and incomplete impurity cleaning is easy to cause more waste and pollutants during the paint stripping process, increasing the difficulty and cost of environmental protection treatment. The incompletely cleaned impurities are easy to remain in the recycled aluminum, affecting the reuse value and product quality of aluminum, and being unfavorable for the recycling use of waste aluminum paint stripping.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A recycling device for removing paint from waste aluminum, including a paint removal tank. A sorting component is provided on the left side of the paint removal tank. A bracket is provided on the sorting component. An upper end inside the bracket is provided with a conveyor belt. The top surface of the bracket is installed with a feed pipe. An upper end inside the feed pipe is provided with a crushing component. Two crushing rollers are provided on the crushing component. A rotating shaft is sleeved in the middle of the crushing roller. Both outer peripheral walls of the two ends of the rotating shaft are rotatably connected to the feed pipe. The rotating shaft penetrates through the inner wall of the feed pipe and extends to the outside. A first belt pulley is sleeved on one of the rotating shafts extending to the outside. The outer wall of the feed pipe is installed with a first motor through a mounting seat. The output shaft of the first motor is coaxially connected to the rear end of one of the rotating shafts. A dust removal component is provided at the lower end inside the feed pipe. A feed component is installed on the top surface of the left end of the feed pipe. A plurality of heating rods are inserted into the rear end of the paint removal tank in a uniformly arranged structure. The heating rods penetrate through the rear wall of the paint removal tank and extend to the inside. Two stirring components are provided inside the paint removal tank. A discharge plate is rotatably connected to the upper end of the paint removal tank. The bottom surface of the discharge plate is adapted to contact the inner bottom surface of the paint removal tank. The lower end of the discharge plate is in a hollow shape. One end of the top surface of the paint removal tank is in an open shape. An arc-shaped hopper is provided inside the right end of the paint removal tank. A cleaning and discharging component is provided on the right wall of the paint removal tank. A drain pipe with a valve is communicated with the outer wall at the lower end of the paint removal tank.

[0007] Preferably, the feed component includes an inclined feed block fixed on the top surface of the feed pipe. A magnetic adsorption roller is provided at the upper end of the inclined feed block. The bottom surface of the outer peripheral wall of the magnetic adsorption roller is in clearance fit with the middle top surface of the inclined feed block. Both ends of the magnetic adsorption roller are rotatably connected with connecting blocks. The bottom surfaces of the connecting blocks are fixedly connected to the top surface of the inclined feed block. One end of the magnetic adsorption roller penetrates through the connecting block and extends to the outside. A second belt pulley is sleeved on the magnetic adsorption roller extending to the outside. The second belt pulley is frictionally driven by the first belt pulley through a first belt. An inclined guide block is fixedly provided on the top surface of the inclined feed block. The side wall of the inclined guide block is slidably connected to the outer peripheral wall of the magnetic adsorption roller.

[0008] Through the above technical solution, during the sliding process, the magnetic adsorption roller adsorbs substances such as scrap iron mixed in the waste aluminum material, so that substances such as scrap iron adhere to the outer wall of the magnetic adsorption roller. The substances such as scrap iron adsorbed by the magnetic adsorption roller are separated from the magnetic adsorption roller by the blocking of the inclined guide block. The separated substances such as scrap iron slide along the inclined guide block and are discharged to the outside for collection.

[0009] Preferably, the crushing assembly includes a fine crushing roller. Both outer peripheral walls at the two ends of the fine crushing roller are rotatably connected to the feed pipe. The front end of the fine crushing roller penetrates through the inner wall of the feed pipe and extends to the outside. A first gear is sleeved on the fine crushing roller extending to the outside. A second gear is sleeved on one of the rotating shafts. The first gear and the second gear are meshed and connected. There are two crushing rollers. A third gear is sleeved on the rotating shaft extending to the outside. The two third gears are meshed with each other. Both crushing rollers are located above the fine crushing roller. There are triangular blocks above the two crushing rollers. The outer walls of the triangular blocks are fixedly connected to the inner wall of the feed pipe. The bottom surface of the triangular block is in clearance fit with the upper end of the crushing roller.

[0010] Through the above technical solution, the two crushing rollers rotate synchronously to initially crush the waste aluminum material, and the fine crushing roller finely cuts the waste aluminum material into crushed pieces of smaller sizes.

[0011] Preferably, the dust removal assembly includes a first folded block. A second folded block is arranged in parallel with the first folded block. Both the first folded block and the second folded block are fixed on the inner wall of the feed pipe. The middle parts of both the first folded block and the second folded block are hollow. A blower is installed on one outer side wall of the feed pipe through a mounting seat. The outlet pipe of the blower penetrates through the outer wall of the feed pipe and extends to the inside. An exhaust pipe is installed on the other outer side wall of the feed pipe. The exhaust pipe is communicated with the inside of the feed pipe. A dust removal cloth bag is installed at the outlet of the exhaust pipe.

[0012] Through the above technical solution, the air between the first folded block and the second folded block is circulated and conveyed, so that the dust generated when the waste aluminum material collides enters the inside of the exhaust pipe through the air circulation. The continuous conveying transports the dust inside the exhaust pipe to the inside of the dust collection cloth bag for collection.

[0013] Preferably, the sorting assembly includes a conveying roller. The conveying roller is located inside the conveyor belt. The outer peripheral wall of the conveying roller is in frictional transmission with the inner wall of the conveyor belt. Both outer peripheral walls at the two ends of the conveying roller are rotatably connected to the bracket. One end of the conveying roller penetrates through the inner wall of the bracket and extends to the outside. A second motor is installed on the outer wall of the bracket through a mounting seat. The output shaft of the second motor is coaxially connected to the conveying roller extending to the outside. A leak-proof block is fixedly arranged on the inner wall at the left end of the bracket. The bottom surface of the leak-proof block is in sliding connection with the outer wall of the conveyor belt.

[0014] Through the above technical solution, the output shaft of the second motor drives the conveyor belt to rotate, and the leak-proof block reduces the occurrence of leakage during the conveying process of the conveyor belt.

[0015] Preferably, a dry separation magnetic roller is frictionally driven at the other end inside the conveyor belt. Both ends of the dry separation magnetic roller are rotatably connected to a bracket. A waste plate is fixedly provided at the lower right end of the bracket. The waste plate is located below one end of the conveyor belt. A waste guide block is fixedly provided on the bottom surface of the waste plate. A sorting block is installed at the upper end of the side wall of the bracket. One end of the sorting block is in clearance fit with the outer wall of the conveyor belt. The sorting block is inclined. The other end of the sorting block is fixedly provided on the top surface of the paint stripping box. A sorting groove is formed inside the sorting block. The sorting groove communicates with the paint stripping box.

[0016] Through the above technical solution, the waste aluminum material leaps forward along the conveying direction of the conveyor belt due to the repulsive force of the magnetic field and falls into the sorting groove of the sorting block. At this time, the non-metallic substances mixed in the waste aluminum material penetrate through the gap between the conveying block and the sorting block and fall onto the top surface of the waste plate.

[0017] Preferably, the stirring assembly includes a stirring roller. Both ends of the outer peripheral wall of the stirring roller are rotatably connected to the paint stripping box. One end of the stirring roller penetrates through the inner wall of the paint stripping box and extends to the outside. A third belt pulley is sleeved on the stirring roller extending to the outside. The two third belt pulleys are frictionally driven by a second belt. A third motor is installed on the outer wall of the paint stripping box through a mounting seat. The output shaft of the third motor is coaxially connected to one of the stirring rollers extending to the outside. The inner bottom surface of the paint stripping box is of an inclined structure.

[0018] Through the above technical solution, the output shaft of the third motor drives one of the stirring rollers to rotate. At this time, one of the third belt pulleys rotates. The third belt pulley drives the second belt to rotate. The second belt frictionally drives the other stirring roller to rotate, so that the waste aluminum material is in full contact with the paint stripping agent, and the paint on the outer surface of the waste aluminum is separated and stripped.

[0019] Preferably, a cylinder is fixedly provided on the outer wall of the upper end of the feeding plate. A rotating seat is installed on the outer wall of the paint stripping box. A cylinder is installed on the rotating seat through a mounting seat. The piston rod of the cylinder is sleeved on the cylinder. The piston rod of the cylinder is rotatably connected to the cylinder. The outer wall of the arc-shaped hopper is slidably connected to the lower end inside the paint stripping box. A rotating rod is fixedly provided on the arc-shaped hopper. Both ends of the outer peripheral wall of the rotating rod are rotatably connected to the paint stripping box. A forward and reverse motor is installed on the outer wall of the paint stripping box through a mounting seat. The output shaft of the forward and reverse motor is coaxially connected to one end of the rotating rod. An arc-shaped groove is formed on the arc-shaped hopper. The groove wall of the arc-shaped groove is in a hollow shape.

[0020] Through the above technical solution, after the waste aluminum is stripped of paint, the piston rod of the cylinder pushes the cylinder to move, so that the cylinder drives the feeding plate to rotate along the upper end of the paint stripping box. After adjusting the appropriate gap between the feeding plate and the inner bottom surface of the paint stripping box, the waste aluminum material slides along the inner bottom surface of the paint stripping box from high to low.

[0021] Preferably, the cleaning and discharging assembly includes a discharging hopper fixedly arranged at the upper end of the outer wall of the paint stripping tank. The top surface of the middle part of the discharging hopper is hollow. A recycling box is arranged below the discharging hopper. A fixing block is fixedly arranged on the outer wall of one side of the discharging hopper. Two spray pipes are symmetrically inserted on the fixing block. A plurality of nozzles are communicated with the inner wall of the spray pipe in a uniformly arranged structure. One end between the two spray pipes is communicated with a T-shaped pipe. A water pump is installed on the outer wall of the recycling box through a mounting seat. The water outlet end of the water pump is communicated with the T-shaped pipe. A drain pipe is communicated with the lower outer wall of the recycling box.

[0022] Through the above technical solution, water is conveyed into the spray pipe through the T-shaped pipe and then sprayed from the nozzles onto the outer surface of the waste aluminum sheet, flushing and cleaning the upper and lower surfaces of the waste aluminum after paint stripping, reducing the residue of the paint stripper.

[0023] Preferably, a method for using a recycling device for waste aluminum paint stripping includes the following steps:

[0024] Feeding: First, convey the waste aluminum material to be stripped of paint to the top surface of the left end of the inclined feeding block. Due to the inclined angle, the waste aluminum material slides from a high place to a low place. During the sliding process, the magnetic attraction roller adsorbs substances such as waste iron mixed in the waste aluminum material, so that substances such as waste iron adhere to the outer wall of the magnetic attraction roller. While the first motor drives the first belt pulley to rotate, through the frictional transmission of the first belt, the second belt pulley rotates synchronously. The second belt pulley drives the magnetic attraction roller to rotate clockwise, so that the substances such as waste iron adsorbed by the magnetic attraction roller are separated from the magnetic attraction roller by the blockage of the inclined guide block. The separated substances such as waste iron slide along the inclined guide block and are discharged to the outside for collection. The waste aluminum material after removing substances such as waste iron slides into the feeding pipe.

[0025] Crushing: The waste aluminum material entering the feeding pipe falls between the two crushing rollers due to the blockage of the two triangular blocks. The first motor drives one of the rotating shafts to rotate, so that one of the rotating shafts drives one of the third gears to rotate synchronously. One of the third gears meshes and drives the other third gear, so that the other rotating shaft rotates synchronously in the opposite direction, and the two crushing rollers rotate synchronously to preliminarily crush the waste aluminum material. The crushed waste aluminum material moves downward along the feeding pipe. During the moving process, one of the rotating shafts drives the second gear to rotate. The second gear meshes and drives the first gear, so that the first gear drives the fine crushing roller to rotate, and the fine crushing roller finely cuts the waste aluminum material into a broken shape with a smaller size. The crushed waste aluminum material continues to move downward to the dust removal assembly for dust removal.

[0026] Dust removal: The waste aluminum materials broken to appropriate sizes slide downward through the gap between the fine crushing rollers, the first folded block, and the second folded block, and slide and fall along the gaps between the first folded block and the second folded block respectively. During the falling process, they collide with the first folded block and the second folded block respectively, causing the dust attached to the broken waste aluminum materials to vibrate and fall. After the fallen dust forms dust floating in the air, the external air is conveyed into the feeding pipe through a blower, moves through the hollow parts of the first folded block and is conveyed to the hollow parts of the second folded block and then into the exhaust pipe, enabling the air between the first folded block and the second folded block to circulate and be conveyed. The dust floating in the air generated when the waste aluminum materials collide enters the exhaust pipe through the air circulation. The continuous conveyance transports the dust in the exhaust pipe into the dust collection cloth bag for collection. The waste aluminum materials after dust removal fall onto the conveyor belt of the sorting assembly;

[0027] Sorting: The output shaft of the second motor drives the conveyor belt to rotate, and the dry separation magnetic roller rotates synchronously through the conveyor belt, causing the waste aluminum materials falling on the top surface of the conveyor belt to move from left to right. When moving to the dry separation magnetic roller, the waste aluminum materials passing through the dry separation magnetic roller pass through the high-frequency alternating strong magnetic field generated by the dry separation magnetic roller, causing eddy currents to be generated in the waste aluminum materials. This eddy current generates a magnetic field opposite to the original magnetic field, and the waste aluminum materials leap forward along the conveying direction of the conveyor belt due to the repulsive force of the magnetic field and fall into the sorting groove of the sorting block. At this time, the non-metallic substances mixed in the waste aluminum materials penetrate through the gap between the conveying block and the sorting block and fall onto the top surface of the waste material plate, and slide along the waste material plate into the waste material guide block. The non-metallic substances are conveyed to the outside for collection through the waste material guide block, completing the sorting of the waste aluminum materials;

[0028] Paint stripping: The sorted waste aluminum materials enter the interior of the paint stripping tank through the sorting blocks. The paint stripper to be used is transported into the interior of the paint stripping tank through the opening on the top surface of the paint stripping tank. At this time, the paint stripper is heated to an appropriate temperature by the heating rod. One of the stirring rollers is rotated by the output shaft of the third motor. At this time, one of the third pulleys rotates, and the third pulley drives the second belt to rotate. The second belt frictionally drives the other stirring roller to rotate, so that the waste aluminum materials are in full contact with the paint stripper, and the paint on the outer surface of the waste aluminum is separated and stripped. After the waste aluminum is stripped of paint, the piston rod of the air cylinder pushes the cylinder to move, so that the cylinder drives the discharge plate to rotate along the upper end of the paint stripping tank. At this time, the air cylinder drives the rotating seat to rotate, and the rotating seat rotates along the paint stripping tank. After adjusting the appropriate gap between the discharge plate and the inner bottom surface of the paint stripping tank, the waste aluminum materials slide along the inner bottom surface of the paint stripping tank from high to low. Before sliding, the output shaft of the forward and reverse motor drives the rotating rod to rotate along the paint stripping tank, so that the rotating rod drives the arc-shaped hopper to move downward. At this time, the outer wall of the arc-shaped hopper slides with the lower end of the paint stripping tank, so that the stripped waste aluminum enters the arc-shaped groove inside the arc-shaped hopper. Then, the output shaft of the forward and reverse motor rotates in the reverse direction, pushing the arc-shaped hopper to rotate upward, so that the arc-shaped hopper drives the stripped waste materials to move upward. After rotating the arc-shaped hopper to an appropriate angle, the stripped waste aluminum enters the cleaning and discharging assembly for cleaning and discharging;

[0029] Cleaning and discharging: Connect the external tap water pipe to the water inlet end of the water pump. The water pump transports the tap water through the water outlet end to the inside of the T-shaped pipe. At this time, the waste aluminum materials slide along the discharge hopper to the outside for collection. During the collection of the waste aluminum, the water is transported to the inside of the spray pipe through the T-shaped pipe and sprayed from the nozzle to the outer surface of the waste aluminum sheets, flushing and cleaning the upper and lower surfaces of the stripped waste aluminum, reducing the residue of the paint stripper. The water after flushing falls into the recycling tank and is recycled through the recycling tank, completing the paint stripping operation of the waste aluminum.

[0030] Advantages of the present invention:

[0031] 1. In the present invention, when feeding, the waste aluminum materials to be stripped of paint are transported to the top surface of the left end of the inclined feeding block. Due to the inclined angle, the waste aluminum materials slide from high to low. During the sliding process, the magnetic attraction roller adsorbs substances such as scrap iron in the waste aluminum materials, so that the substances such as scrap iron adhere to the outer wall of the magnetic attraction roller. While the first motor drives the first pulley to rotate, the second pulley rotates synchronously through the frictional drive of the first belt. The second pulley drives the magnetic attraction roller to rotate clockwise, so that the substances such as scrap iron adsorbed by the magnetic attraction roller are separated from the magnetic attraction roller by the blockage of the inclined guide block. The separated substances such as scrap iron slide along the inclined guide block and are discharged to the outside for collection, magnetically removing the substances such as scrap iron in the waste aluminum raw materials. The waste aluminum materials after removing the substances such as scrap iron slide into the feeding pipe, improving the purity of the waste aluminum materials, providing higher-quality raw materials for subsequent treatment or reuse, and improving the recycling rate of the waste aluminum materials.

[0032] 2. In the present invention, the waste aluminum materials entering the interior of the feed pipe fall between the two crushing rollers due to the obstruction of the two triangular blocks. One of the rotating shafts is driven by the first motor to rotate, causing one of the rotating shafts to drive one of the third gears to rotate synchronously. One of the third gears is meshed and transmitted to the other third gear, causing the other rotating shaft to rotate synchronously in the opposite direction, so that the two crushing rollers rotate synchronously to initially crush the waste aluminum materials. The crushed waste aluminum materials move downward along the feed pipe. During the movement, one of the rotating shafts drives the second gear to rotate, and the second gear is meshed and transmitted to the first gear, causing the first gear to drive the fine crushing roller to rotate, so that the fine crushing roller finely cuts the waste aluminum materials into crushed pieces of smaller size. The crushed waste aluminum materials continue to move downward to the dust removal assembly for dust removal, ensuring the uniformity and high efficiency of the crushing process, enabling the waste aluminum materials to be quickly crushed into smaller-sized fragments, realizing the continuous rotation of the crushing rollers and the fine crushing roller, thus ensuring the continuity and high efficiency of the crushing process, improving the efficiency of the entire processing flow, reducing the crushing cost, and facilitating the recycling and use of waste aluminum after paint stripping.

[0033] 3. In the present invention, the waste aluminum materials crushed to the appropriate size slide downward through the gap between the fine crushing roller, the first folded block and the second folded block, and slide and fall along the gaps between the first folded block and the second folded block respectively. During the falling process, they impact the first folded block and the second folded block respectively, causing the dust attached to the crushed waste aluminum materials to vibrate and fall off. After the fallen dust forms dust particles in the air, the blower conveys external air into the interior of the feed pipe, moves through the hollow parts of the first folded block and is conveyed to the hollow parts of the second folded block and then into the exhaust pipe, enabling the air between the first folded block and the second folded block to circulate and be conveyed. The dust particles generated when the waste aluminum materials impact enter the exhaust pipe through the air circulation. The continuous conveying transports the dust particles in the exhaust pipe into the dust collection cloth bag for collection. The dust-removed waste aluminum materials fall onto the conveyor belt of the sorting assembly, facilitating the removal of the dust attached to the waste aluminum materials. The dust removal process makes the surface of the waste aluminum materials cleaner, improves their quality and recycling value, provides better raw materials for subsequent processing or recycling, improves the dust removal efficiency, facilitates the collection of the dust particles, enables the waste aluminum materials to be dust-removed immediately after crushing, improves the overall processing efficiency, and shortens the processing cycle.

[0034] 4. In the present invention, the output shaft of the second motor drives the conveyor belt to rotate, and the dry separation magnetic roller rotates synchronously through the conveyor belt, causing the waste aluminum materials lying on the top surface of the conveyor belt to move from left to right. When the waste aluminum materials move to the dry separation magnetic roller, the waste aluminum materials passing through the dry separation magnetic roller generate eddy currents under the action of the high-frequency alternating strong magnetic field generated by the dry separation magnetic roller. This eddy current generates a magnetic field opposite to the original magnetic field, and the waste aluminum materials leap forward along the conveying direction of the conveyor belt due to the repulsive force of the magnetic field and fall into the sorting groove inside the sorting block. At this time, the non-metallic substances mixed in the waste aluminum materials penetrate through the gap between the conveying block and the sorting block and fall onto the top surface of the waste material plate, and then slide along the waste material plate into the waste material guide block. The non-metallic substances are conveyed to the outside for collection through the waste material guide block, completing the sorting of the waste aluminum materials. This sorting method is based on the difference in material magnetism, so it realizes accurate and rapid sorting, improves the sorting quality, avoids environmental pollution caused by mixed treatment with waste aluminum materials, and improves the recycling efficiency and purity of waste aluminum.

[0035] 5. In the present invention, the sorted waste aluminum materials enter the paint stripping box through the sorting block. The paint stripping agent to be used is conveyed into the paint stripping box through the opening on the top surface of the paint stripping box. At this time, the paint stripping agent is heated to a suitable temperature by the heating rod. The output shaft of the third motor drives one of the stirring rollers to rotate. At this time, one of the third pulleys rotates, and the third pulley drives the second belt to rotate. The second belt frictionally drives the other stirring roller to rotate, enabling the waste aluminum materials to come into full contact with the paint stripping agent and separating and stripping the paint on the outer surface of the waste aluminum. After the waste aluminum is stripped of paint, the piston rod of the air cylinder pushes the cylinder to move, causing the cylinder to drive the discharge plate to rotate along the upper end of the paint stripping box. At this time, the air cylinder drives the rotating seat to rotate, and the rotating seat rotates along the paint stripping box. After adjusting the gap between the discharge plate and the inner bottom surface of the paint stripping box to a suitable value, the waste aluminum materials slide from high to low along the inner bottom surface of the paint stripping box, ensuring that the waste aluminum materials can be fully mixed and contacted with the paint stripping agent, improving the paint stripping efficiency. The heating rod heats the paint stripping agent to make it reach a suitable temperature, which helps the paint stripping agent to better penetrate the surface of the waste aluminum materials, thus achieving a more thorough paint stripping effect, improving the reuse value of the waste aluminum materials, and adjusting the gap between the discharge plate and the inner bottom surface of the paint stripping box, improving the flexibility and convenience of the paint stripping process.

[0036] 6. In the present invention, before sliding, the output shaft of the forward and reverse motor drives the rotating rod to rotate along the paint stripping box, causing the rotating rod to drive the arc-shaped hopper to move downward. At this time, the outer wall of the arc-shaped hopper slides against the lower end of the paint stripping box, enabling the degreased waste aluminum to enter the arc-shaped groove inside the arc-shaped hopper. Then, the output shaft of the forward and reverse motor rotates in the reverse direction, pushing the arc-shaped hopper to rotate upward, causing the arc-shaped hopper to drive the degreased waste upward. After rotating the arc-shaped hopper to an appropriate angle, the degreased waste aluminum enters the cleaning and discharging assembly for cleaning and discharging, improving the collection efficiency, enhancing the automation degree and efficiency of the entire processing process, reducing the time and cost of manual operation, and improving the stability and reliability.

[0037] 7. In the present invention, an external water pipe is connected to the water inlet end of the water pump. The water pump transports tap water through the water outlet end into the T-shaped pipe. At this time, the waste aluminum material slides along the discharge hopper to the outside for collection. During the collection of the waste aluminum, the water is transported through the T-shaped pipe into the spray pipe and sprayed from the nozzle onto the outer surface of the waste aluminum sheet, flushing and cleaning the upper and lower surfaces of the degreased waste aluminum, reducing the residue of the paint stripper. The water after flushing falls into the recycling box and is recycled through the recycling box to complete the paint stripping operation of the waste aluminum, improving the cleaning efficiency, effectively removing the residual paint stripper on the surface of the waste aluminum, improving the purity and recycling value of the waste aluminum, and reducing the impact of the paint stripper on the environment and subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 is a rear view of the overall structure of the present invention;

[0040] Figure 3 is a schematic diagram of the structure of the feeding assembly of the present invention;

[0041] Figure 4 is a schematic diagram of the structure of the crushing assembly of the present invention;

[0042] Figure 5 is an enlarged schematic diagram of the structure at A of the present invention;

[0043] Figure 6 is a schematic diagram of the structure of the dust removal assembly of the present invention;

[0044] Figure 7 is a cross-sectional view of the conveyor belt structure of the present invention;

[0045] Figure 8 is a cross-sectional view of the paint stripping box structure of the present invention;

[0046] Figure 9 is a rear view of the paint stripping box structure of the present invention;

[0047] Figure 10 Cross-sectional view of the discharge hopper structure of the present invention.

[0048] In the figure: 1, paint stripping box; 2, sorting assembly; 201, bracket; 202, conveyor belt; 203, conveyor roller; 204, second motor; 205, dry separation magnetic roller; 206, waste plate; 207, waste guide block; 208, sorting block; 209, sorting groove; 210, leak-proof block; 3, feed pipe; 4, crushing assembly; 401, crushing roller; 402, rotating shaft; 403, first motor; 404, fine crushing roller; 405, first gear; 406, second gear; 407, third gear; 408, triangular block; 409, first pulley; 5, dust removal assembly; 501, first folded block; 502, second folded block; 503, blower; 504, exhaust duct; 6, feeding assembly; 601, inclined feeding block; 602, magnetic suction roller; 603, connecting block; 604, second pulley; 605, inclined material guide block; 7, heating rod; 8, stirring assembly; 801, stirring roller; 802, third pulley; 803, second belt; 804, third motor; 9, discharging plate; 10, arc-shaped hopper; 11, cleaning and discharging assembly; 1101, discharge hopper; 1102, recycling box; 1103, spray pipe; 1104, spray head; 1105, T-shaped pipe; 1106, water pump; 1107, drain pipe; 1108, fixing block; 12, first belt; 13, cylinder; 14, rotating seat; 15, cylinder; 16, rotating rod; 17, forward and reverse motor; 18, arc-shaped groove; 19, liquid discharge pipe. Detailed implementation manners

[0049] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0050] Embodiment 1

[0051] As Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9As shown in the figure, this embodiment provides a recycling device and method for removing paint from waste aluminum, including a paint removal tank 1. A sorting component 2 is provided on the left side of the paint removal tank 1. A bracket 201 is provided on the sorting component 2. An upper end inside the bracket 201 is provided with a conveyor belt 202. The top surface of the bracket 201 is installed with a feed pipe 3. An upper end inside the feed pipe 3 is provided with a crushing component 4. Two crushing rollers 401 are provided on the crushing component 4. A rotating shaft 402 is sleeved in the middle of the crushing roller 401. Both outer peripheral walls at the two ends of the rotating shaft 402 are rotatably connected to the feed pipe 3. The rotating shaft 402 penetrates through the inner wall of the feed pipe 3 and extends to the outside. A first belt pulley 409 is sleeved on one of the rotating shafts 402 extending to the outside. A first motor 403 is installed on the outer wall of the feed pipe 3 through a mounting seat. The output shaft of the first motor 403 is coaxially connected to the rear end of one of the rotating shafts 402. A dust removal component 5 is provided at the lower end inside the feed pipe 3. A feed component 6 is installed on the top surface at the left end of the feed pipe 3. A plurality of heating rods 7 are inserted into the rear end of the paint removal tank 1 in a uniformly arranged structure. The heating rods 7 penetrate through the rear wall of the paint removal tank 1 and extend to the inside. Two stirring components 8 are provided inside the paint removal tank 1. A discharge plate 9 is rotatably connected to the upper end of the paint removal tank 1. The bottom surface of the discharge plate 9 is adapted to contact the inner bottom surface of the paint removal tank 1. The lower end of the discharge plate 9 is in a hollow shape. One end of the top surface of the paint removal tank 1 is open. An arc-shaped hopper 10 is provided inside the right end of the paint removal tank 1. A cleaning and discharging component 11 is provided on the right wall of the paint removal tank 1. A drain pipe 19 with a valve is communicated with the outer wall at the lower end of the paint removal tank 1.

[0052] The feed component 6 includes an inclined feed block 601. The inclined feed block 601 is fixedly arranged on the top surface of the feed pipe 3. A magnetic adsorption roller 602 is provided at the upper end of the inclined feed block 601. The bottom surface of the outer peripheral wall of the magnetic adsorption roller 602 has a clearance fit with the middle top surface of the inclined feed block 601. Both ends of the magnetic adsorption roller 602 are rotatably connected with connecting blocks 603. The bottom surface of the connecting blocks 603 is fixedly connected to the top surface of the inclined feed block 601. One end of the magnetic adsorption roller 602 penetrates through the connecting block 603 and extends to the outside. A second belt pulley 604 is sleeved on the magnetic adsorption roller 602 extending to the outside. The second belt pulley 604 is frictionally driven by the first belt 12 and the first belt pulley 409. An inclined guide block 605 is fixedly arranged on the top surface of the inclined feed block 601. The side wall of the inclined guide block 605 is slidably connected to the outer peripheral wall of the magnetic adsorption roller 602. During the sliding process, the magnetic adsorption roller 602 adsorbs substances such as scrap iron mixed in the waste aluminum material, so that substances such as scrap iron adhere to the outer wall of the magnetic adsorption roller 602. The substances such as scrap iron adsorbed by the magnetic adsorption roller 602 are separated from the magnetic adsorption roller 602 through the blocking of the inclined guide block 605. The separated substances such as scrap iron slide along the inclined guide block 605 and are discharged to the outside for collection.

[0053] During feeding, first, the waste aluminum materials to be stripped of paint are conveyed to the top surface at the left end of the inclined feeding block 601. Due to the inclined angle, the waste aluminum materials slide from a high place to a low place. During the sliding process, the magnetic roller 602 adsorbs substances such as waste iron mixed in the waste aluminum materials, causing the substances such as waste iron to adhere to the outer wall of the magnetic roller 602. While the first motor 403 drives the first pulley 409 to rotate, the second pulley 604 is synchronously rotated through the frictional transmission of the first belt 12. The second pulley 604 drives the magnetic roller 602 to rotate clockwise, so that the substances such as waste iron adsorbed by the magnetic roller 602 are separated from the magnetic roller 602 by the blockage of the inclined guide block 605. The separated substances such as waste iron slide along the inclined guide block 605 and are discharged to the outside for collection. The waste aluminum materials from which substances such as waste iron have been removed slide into the feeding pipe 3, improving the purity of the waste aluminum materials, providing higher-quality raw materials for subsequent processing or reuse, and increasing the recycling rate of the waste aluminum materials.

[0054] Embodiment 2

[0055] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, this embodiment is based on the previous embodiment. The difference from the previous embodiment is that the crushing assembly 4 includes a fine crushing roller 404. Both outer peripheral walls at the two ends of the fine crushing roller 404 are rotatably connected to the feeding pipe 3. The front end of the fine crushing roller 404 penetrates through the inner wall of the feeding pipe 3 and extends to the outside. A first gear 405 is sleeved on the fine crushing roller 404 extending to the outside. A second gear 406 is sleeved on one of the rotating shafts 402. The first gear 405 and the second gear 406 are meshed and connected. There are two crushing rollers 401. A third gear 407 is sleeved on the rotating shaft 402 extending to the outside. The two third gears 407 are meshed with each other. Both crushing rollers 401 are located above the fine crushing roller 404. Triangular blocks 408 are provided above the two crushing rollers 401. The outer walls of the triangular blocks 408 are fixedly connected to the inner wall of the feeding pipe 3. The bottom surface of the triangular block 408 is in clearance fit with the upper end of the crushing roller 401. The two crushing rollers 401 rotate synchronously to preliminarily crush the waste aluminum materials, so that the fine crushing roller 404 finely cuts the waste aluminum materials into a crushed shape with a smaller size.

[0056] During crushing, the waste aluminum materials entering the interior of the feed pipe 3 are blocked by two triangular blocks 408 and fall between the two crushing rollers 401. One of the rotating shafts 402 is driven to rotate by the first motor 403, causing one of the rotating shafts 402 to drive one of the third gears 407 to rotate synchronously. One of the third gears 407 is meshed and transmitted to the other third gear 407, causing the other rotating shaft 402 to rotate synchronously in the opposite direction, so that the two crushing rollers 401 rotate synchronously to initially crush the waste aluminum materials. The crushed waste aluminum materials move downward along the feed pipe 3. During the movement, one of the rotating shafts 402 drives the second gear 406 to rotate. The second gear 406 is meshed and transmitted to the first gear 405, causing the first gear 405 to drive the fine crushing roller 404 to rotate, so that the fine crushing roller 404 finely cuts the waste aluminum materials into crushed pieces of smaller size. The crushed waste aluminum materials continue to move downward to the dust removal assembly 5 for dust removal, ensuring the uniformity and high efficiency of the crushing process, enabling the waste aluminum materials to be quickly crushed into smaller-sized fragments, realizing the continuous rotation of the crushing rollers 401 and the fine crushing roller 404, thus ensuring the continuity and high efficiency of the crushing process, improving the efficiency of the entire processing flow, reducing the crushing cost, and facilitating the recycling of waste aluminum after paint stripping.

[0057] Embodiment 3

[0058] As Figure 1 , Figure 2 and Figure 6 shown, this embodiment is based on the previous embodiment. The difference from the previous embodiment is that the dust removal assembly 5 includes a first folded block 501. A second folded block 502 is arranged in parallel with the first folded block 501. Both the first folded block 501 and the second folded block 502 are fixedly arranged on the inner wall of the feed pipe 3. The middle parts of both the first folded block 501 and the second folded block 502 are hollow. A blower 503 is installed on one outer wall of the feed pipe 3 through a mounting seat. The outlet pipe of the blower 503 penetrates through the outer wall of the feed pipe 3 and extends to the interior. A discharge air pipe 504 is installed on the other outer wall of the feed pipe 3. The discharge air pipe 504 is communicated with the interior of the feed pipe 3. A dust removal cloth bag is installed at the outlet of the discharge air pipe 504; to make the air between the first folded block 501 and the second folded block 502 flow and be conveyed, so that the dust generated when the waste aluminum materials collide enters the interior of the discharge air pipe 504 through the air flow, and the continuous conveying transports the dust in the discharge air pipe 504 into the dust collection cloth bag for collection.

[0059] During dust removal, the waste aluminum materials broken to appropriate sizes slide downward through the gap between the fine crushing rollers 404, the first folded block 501, and the second folded block 502, and slide and fall along the gaps between the first folded block 501 and the second folded block 502 respectively. During the falling process, they impact the first folded block 501 and the second folded block 502 respectively, causing the dust attached to the broken waste aluminum materials to vibrate and fall. After the fallen dust forms dust particles in the air, the blower 503 conveys external air into the feeding pipe 3, moves through the hollow parts of the first folded block 501 and is conveyed to the hollow parts of the second folded block 502 and then into the exhaust pipe 504, enabling the air between the first folded block 501 and the second folded block 502 to circulate and be conveyed. The dust particles generated when the waste aluminum materials impact enter the exhaust pipe 504 through the air circulation. The continuous conveying transports the dust particles in the exhaust pipe 504 into the dust collection cloth bag for collection. The waste aluminum materials after dust removal fall onto the conveyor belt 202 of the sorting assembly 2, facilitating the removal of the dust attached to the waste aluminum materials. The dust removal process makes the surface of the waste aluminum materials cleaner, improves their quality and recycling value, provides better raw materials for subsequent processing or recycling, improves the dust removal efficiency, facilitates the collection of dust particles, enables the waste aluminum materials to be immediately dust-removed after crushing, improves the overall processing efficiency, and shortens the processing cycle.

[0060] Embodiment 4

[0061] As Figure 1 , Figure 2 and Figure 7 shown, this embodiment is based on the previous embodiment. The difference from the previous embodiment is that the sorting assembly 2 includes a conveying roller 203. The conveying roller 203 is located inside the conveyor belt 202. The outer peripheral wall of the conveying roller 203 is in friction drive with the inner wall of the conveyor belt 202. Both ends of the outer peripheral wall of the conveying roller 203 are rotatably connected to the bracket 201. One end of the conveying roller 203 penetrates through the inner wall of the bracket 201 and extends to the outside. A second motor 204 is installed on the outer wall of the bracket 201 through a mounting seat. The output shaft of the second motor 204 is coaxially connected to the conveying roller 203 extending to the outside. A leak-proof block 210 is fixedly provided on the inner wall of the left end of the bracket 201. The bottom surface of the leak-proof block 210 is in sliding connection with the outer wall of the conveyor belt 202. The conveyor belt 202 is rotated by the output shaft of the second motor 204, and the leak-proof block 210 reduces the occurrence of leakage during the conveying process of the conveyor belt 202.

[0062] At the other end inside the conveyor belt 202, a dry separation magnetic roller 205 is frictionally driven. Both ends of the dry separation magnetic roller 205 are rotatably connected to the bracket 201. A waste plate 206 is fixedly provided at the lower right end of the bracket 201. The waste plate 206 is located below one end of the conveyor belt 202. A waste guide block 207 is fixedly provided on the bottom surface of the waste plate 206. A sorting block 208 is installed at the upper end of the side wall of the bracket 201. One end of the sorting block 208 is in clearance fit with the outer wall of the conveyor belt 202. The sorting block 208 is inclined. The other end of the sorting block 208 is fixedly provided on the top surface of the paint stripping box 1. A sorting groove 209 is opened inside the sorting block 208. The sorting groove 209 communicates with the paint stripping box 1. Due to the repulsive force of the magnetic field, the waste aluminum materials leap forward along the conveying direction of the conveyor belt 202 and fall into the sorting groove 209 inside the sorting block 208. At this time, the non-metallic substances mixed in the waste aluminum materials penetrate through the gap between the conveying block and the sorting block 208 and fall onto the top surface of the waste plate 206.

[0063] During sorting, the output shaft of the second motor 204 drives the conveyor belt 202 to rotate, and the dry separation magnetic roller 205 rotates synchronously through the conveyor belt 202, so that the waste aluminum materials falling on the top surface of the conveyor belt 202 move from left to right. When moving to the dry separation magnetic roller 205, the waste aluminum materials passing through the dry separation magnetic roller 205 pass through the high-frequency alternating strong magnetic field generated by the dry separation magnetic roller 205, causing eddy currents to be generated in the waste aluminum materials. This eddy current generates a magnetic field opposite to the original magnetic field. Due to the repulsive force of the magnetic field, the waste aluminum materials leap forward along the conveying direction of the conveyor belt 202 and fall into the sorting groove 209 inside the sorting block 208. At this time, the non-metallic substances mixed in the waste aluminum materials penetrate through the gap between the conveying block and the sorting block 208 and fall onto the top surface of the waste plate 206, and slide along the waste plate 206 into the waste guide block 207. The non-metallic substances are conveyed to the outside for collection through the waste guide block 207, completing the sorting of the waste aluminum materials. This sorting method is based on the difference in material magnetism, so accurate and rapid sorting is achieved, the sorting quality is improved, environmental pollution caused by mixed treatment with waste aluminum materials is avoided, and the recycling efficiency and purity of waste aluminum are improved.

[0064] Embodiment Five

[0065] As Figure 1 , Figure 2 , Figure 8 and Figure 9As shown in the figure, this embodiment is based on the previous embodiment. The difference from the previous embodiment is that the stirring assembly 8 includes a stirring roller 801. Both ends of the outer peripheral wall of the stirring roller 801 are rotatably connected to the paint stripping tank 1. One end of the stirring roller 801 penetrates through the inner wall of the paint stripping tank 1 and extends to the outside. A third pulley 802 is sleeved on the stirring roller 801 extending to the outside. The two third pulleys 802 are frictionally driven by a second belt 803. A third motor 804 is installed on the outer wall of the paint stripping tank 1 through a mounting seat. The output shaft of the third motor 804 is coaxially connected to one of the stirring rollers 801 extending to the outside. The inner bottom surface of the paint stripping tank 1 is of an inclined structure. By driving one of the stirring rollers 801 to rotate through the output shaft of the third motor 804, at this time one of the third pulleys 802 rotates, the third pulley 802 drives the second belt 803 to rotate, and the second belt 803 frictionally drives the other stirring roller 801 to rotate, so that the waste aluminum material is in full contact with the paint stripper, and the paint on the outer surface of the waste aluminum is separated and stripped.

[0066] A cylinder 13 is fixedly provided on the outer wall of the upper end of the feeding plate 9. A rotating seat 14 is installed on the outer wall of the paint stripping tank 1. A cylinder 15 is installed on the rotating seat 14 through a mounting seat. The piston rod of the cylinder 15 is sleeved on the cylinder 13, and the piston rod of the cylinder 15 is rotatably connected to the cylinder 13. The outer wall of the arc-shaped hopper 10 is slidably connected to the lower end inside the paint stripping tank 1. A rotating rod 16 is fixedly provided on the arc-shaped hopper 10. Both ends of the outer peripheral wall of the rotating rod 16 are rotatably connected to the paint stripping tank 1. A forward and reverse motor 17 is installed on the outer wall of the paint stripping tank 1 through a mounting seat. The output shaft of the forward and reverse motor 17 is coaxially connected to one end of the rotating rod 16. An arc-shaped groove 18 is formed on the arc-shaped hopper 10, and the groove wall of the arc-shaped groove 18 is of a hollow shape. After the waste aluminum is stripped of paint, the piston rod of the cylinder 15 is pushed to move the cylinder 13, so that the cylinder 13 drives the feeding plate 9 to rotate along the upper end of the paint stripping tank 1. After adjusting the appropriate gap between the feeding plate 9 and the inner bottom surface of the paint stripping tank 1, the waste aluminum material slides along the inner bottom surface of the paint stripping tank 1 from high to low.

[0067] When removing paint, the sorted waste aluminum materials enter the paint stripping tank 1 through the sorting block 208. The paint stripper to be used is transported into the paint stripping tank 1 through the opening on the top surface of the paint stripping tank 1. At this time, the paint stripper is heated to an appropriate temperature by the heating rod 7. The output shaft of the third motor 804 drives one of the stirring rollers 801 to rotate. At this time, one of the third pulleys 802 rotates, and the third pulley 802 drives the second belt 803 to rotate. The second belt 803 frictionally drives the other stirring roller 801 to rotate, so that the waste aluminum materials are in full contact with the paint stripper, and the paint on the outer surface of the waste aluminum is separated and stripped. After the waste aluminum is stripped of paint, the piston rod of the cylinder 15 pushes the cylinder 13 to move, so that the cylinder 13 drives the discharge plate 9 to rotate along the upper end of the paint stripping tank 1. At this time, the cylinder 15 drives the rotating seat 14 to rotate, and the rotating seat 14 rotates along the paint stripping tank 1. After adjusting the gap between the discharge plate 9 and the inner bottom surface of the paint stripping tank 1 to an appropriate value, the waste aluminum materials slide along the inner bottom surface of the paint stripping tank 1 from high to low, ensuring that the waste aluminum materials can be fully mixed and contacted with the paint stripper, improving the paint stripping efficiency. The heating rod 7 heats the paint stripper to an appropriate temperature, which helps the paint stripper to better penetrate to the surface of the waste aluminum materials, thereby achieving a more thorough paint stripping effect, improving the reuse value of the waste aluminum materials, adjusting the gap between the discharge plate 9 and the inner bottom surface of the paint stripping tank 1, and improving the flexibility and convenience of the paint stripping process;

[0068] Before sliding, the output shaft of the forward and reverse motor 17 drives the rotating rod 16 to rotate along the paint stripping tank 1, so that the rotating rod 16 drives the arc-shaped hopper 10 to move downward. At this time, the outer wall of the arc-shaped hopper 10 slides with the lower end of the paint stripping tank 1, so that the stripped waste aluminum enters the arc-shaped groove 18 inside the arc-shaped hopper 10. Then, the output shaft of the forward and reverse motor 17 rotates in the reverse direction, pushing the arc-shaped hopper 10 to rotate upward, so that the arc-shaped hopper 10 drives the stripped waste materials to move upward. After rotating the arc-shaped hopper 10 to an appropriate angle, the stripped waste aluminum enters the cleaning and discharging assembly 11 for cleaning and discharging, improving the collection efficiency, improving the automation degree and efficiency of the entire processing flow, reducing the time and cost of manual operation, and improving the stability and reliability.

[0069] Example Six

[0070] As Figure 1 , Figure 2 , Figure 8 , Figure 9 and Figure 10As shown in the figure, this embodiment is based on the previous embodiment. The difference from the previous embodiment is that the cleaning and discharging assembly 11 includes a discharge hopper 1101. The discharge hopper 1101 is fixedly arranged at the upper end of the outer wall of the paint stripping tank 1. The top surface in the middle of the discharge hopper 1101 is hollow. A recovery tank 1102 is arranged below the discharge hopper 1101. A fixing block 1108 is fixedly arranged on one outer wall of the discharge hopper 1101. Two spray pipes 1103 are symmetrically inserted on the fixing block 1108. A plurality of spray heads 1104 are connected to the inner wall of the spray pipe 1103 in a uniformly arranged structure. One end between the two spray pipes 1103 is connected to a T-shaped pipe 1105. A water pump 1106 is installed on the outer wall of the recovery tank 1102 through a mounting seat. The water outlet end of the water pump 1106 is connected to the T-shaped pipe 1105. A drain pipe 1107 is connected to the lower outer wall of the recovery tank 1102; after the water is conveyed into the spray pipe 1103 through the T-shaped pipe 1105, it is sprayed from the spray heads 1104 onto the outer surface of the waste aluminum sheet, flushing and cleaning the upper and lower surfaces of the degreased waste aluminum, reducing the residue of the paint stripper.

[0071] When cleaning and discharging, an external tap water pipe is connected to the water inlet end of the water pump 1106. The water pump 1106 conveys the tap water through the water outlet end into the T-shaped pipe 1105. At this time, the waste aluminum material slides along the discharge hopper 1101 to the outside for collection. During the collection of the waste aluminum, after the water is conveyed into the spray pipe 1103 through the T-shaped pipe 1105, it is sprayed from the spray heads 1104 onto the outer surface of the waste aluminum sheet, flushing and cleaning the upper and lower surfaces of the degreased waste aluminum, reducing the residue of the paint stripper. The water after flushing falls into the recovery tank 1102 and is recycled through the recovery tank 1102, completing the paint stripping operation of the waste aluminum, improving the cleaning efficiency, effectively removing the residual paint stripper on the surface of the waste aluminum, improving the purity and recycling value of the waste aluminum, and reducing the impact of the paint stripper on the environment and subsequent treatment process.

[0072] Working principle:

[0073] When feeding, first convey the waste aluminum material to be stripped of paint to the top surface of the left end of the inclined feeding block 601. Due to the inclined angle, the waste aluminum material slides from a high place to a low place. During the sliding process, the magnetic adsorption roller 602 adsorbs substances such as waste iron in the waste aluminum material, so that substances such as waste iron adhere to the outer wall of the magnetic adsorption roller 602. While the first motor 403 drives the first belt pulley 409 to rotate, through the frictional transmission of the first belt 12, the second belt pulley 604 rotates synchronously. The second belt pulley 604 drives the magnetic adsorption roller 602 to rotate clockwise, so that the waste iron and other substances adsorbed by the magnetic adsorption roller 602 are separated from the magnetic adsorption roller 602 by the blockage of the inclined guide block 605. The separated waste iron and other substances slide along the inclined guide block 605 and are discharged to the outside for collection. The waste aluminum material after removing waste iron and other substances slides into the feeding pipe 3, improving the purity of the waste aluminum material, providing higher-quality raw materials for subsequent treatment or recycling, and improving the recycling rate of the waste aluminum material.

[0074] When being broken, the waste aluminum materials entering the interior of the feed pipe 3 are blocked by two triangular blocks 408 and fall between the two crushing rollers 401. By driving one of the rotating shafts 402 to rotate through the first motor 403, one of the rotating shafts 402 drives one of the third gears 407 to rotate synchronously. One of the third gears 407 is meshed and transmitted to the other third gear 407, causing the other rotating shaft 402 to rotate synchronously in the reverse direction, so that the two crushing rollers 401 rotate synchronously to preliminarily crush the waste aluminum materials. The crushed waste aluminum materials move downward along the feed pipe 3. During the moving process, one of the rotating shafts 402 drives the second gear 406 to rotate. The second gear 406 is meshed and transmitted to the first gear 405, causing the first gear 405 to drive the fine crushing roller 404 to rotate, so that the fine crushing roller 404 finely cuts the waste aluminum materials into crushed pieces of smaller sizes. The crushed waste aluminum materials continue to move downward to the dust removal assembly 5 for dust removal, ensuring the uniformity and high efficiency of the crushing process, enabling the waste aluminum materials to be quickly crushed into smaller-sized fragments, realizing the continuous rotation of the crushing rollers 401 and the fine crushing roller 404, thus ensuring the continuity and high efficiency of the crushing process, improving the efficiency of the entire processing flow, reducing the crushing cost, and facilitating the recycling of waste aluminum after paint stripping.

[0075] When dust is removed, the waste aluminum materials crushed to a suitable size slide downward through the gap between the fine crushing roller 404, the first folded block 501, and the second folded block 502, and slide and fall respectively along the gaps between the first folded block 501 and the second folded block 502. During the falling process, they impact the first folded block 501 and the second folded block 502 respectively, causing the dust attached to the crushed waste aluminum materials to vibrate and fall off. After the fallen dust forms floating dust, the blower 503 conveys external air into the interior of the feed pipe 3, moves through the hollow part of the first folded block 501 and is conveyed to the hollow part of the second folded block 502 into the exhaust pipe 504, enabling the air between the first folded block 501 and the second folded block 502 to circulate and be conveyed. The floating dust generated when the waste aluminum materials impact enters the exhaust pipe 504 through the air circulation. The continuous conveyance transports the floating dust inside the exhaust pipe 504 into the dust collection cloth bag for collection. The dust-removed waste aluminum materials fall onto the conveyor belt 202 of the sorting assembly 2, facilitating the removal of the dust attached to the waste aluminum materials. The dust removal process makes the surface of the waste aluminum materials cleaner, improves their quality and reuse value, provides better raw materials for subsequent processing or reuse, improves the dust removal efficiency, facilitates the collection of floating dust, enables the waste aluminum materials to be immediately dust-removed after crushing, improves the overall processing efficiency, and shortens the processing cycle.

[0076] During sorting, the output shaft of the second motor 204 drives the conveyor belt 202 to rotate, and the conveyor belt 202 causes the dry separation magnetic roller 205 to rotate synchronously, so that the waste aluminum materials falling on the top surface of the conveyor belt 202 move from left to right. When the waste aluminum materials move to the dry separation magnetic roller 205, the waste aluminum materials passing through the dry separation magnetic roller 205 pass through the high-frequency alternating strong magnetic field generated by the dry separation magnetic roller 205, causing eddy currents in the waste aluminum materials. This eddy current generates a magnetic field opposite to the original magnetic field, and the waste aluminum materials leap forward along the conveying direction of the conveyor belt 202 due to the repulsive force of the magnetic field and fall into the sorting groove 209 of the sorting block 208. At this time, the non-metallic substances mixed in the waste aluminum materials pass through the gap between the conveying block and the sorting block 208 and fall onto the top surface of the waste material plate 206, and slide along the waste material plate 206 into the waste material guide block 207. The non-metallic substances are conveyed to the outside for collection through the waste material guide block 207, completing the sorting of the waste aluminum materials. This sorting method is based on the difference in the magnetism of the materials, so it realizes accurate and rapid sorting, improves the sorting quality, avoids environmental pollution caused by mixed treatment with waste aluminum materials, and improves the recycling efficiency and purity of waste aluminum.

[0077] During paint stripping, the sorted waste aluminum materials enter the paint stripping box 1 through the sorting block 208. The paint stripping agent to be used is conveyed into the paint stripping box 1 through the opening on the top surface of the paint stripping box 1. At this time, the paint stripping agent is heated to a suitable temperature by the heating rod 7. The output shaft of the third motor 804 drives one of the stirring rollers 801 to rotate. At this time, one of the third pulleys 802 rotates, and the third pulley 802 drives the second belt 803 to rotate. The second belt 803 frictionally drives the other stirring roller 801 to rotate, so that the waste aluminum materials are in full contact with the paint stripping agent, separating and stripping the paint on the outer surface of the waste aluminum. After the waste aluminum is stripped of paint, the piston rod of the cylinder 15 pushes the cylinder 13 to move, so that the cylinder 13 drives the discharge plate 9 to rotate along the upper end of the paint stripping box 1. At this time, the cylinder 15 drives the rotating seat 14 to rotate, and the rotating seat 14 rotates along the paint stripping box 1. After adjusting the gap between the discharge plate 9 and the inner bottom surface of the paint stripping box 1 to a suitable value, the waste aluminum materials slide along the inner bottom surface of the paint stripping box 1 from high to low, ensuring that the waste aluminum materials and the paint stripping agent can be fully mixed and contacted, improving the paint stripping efficiency. The heating rod 7 heats the paint stripping agent to a suitable temperature, which helps the paint stripping agent to better penetrate to the surface of the waste aluminum materials, thus achieving a more thorough paint stripping effect, improving the reuse value of the waste aluminum materials, and adjusting the gap between the discharge plate 9 and the inner bottom surface of the paint stripping box 1, improving the flexibility and convenience of the paint stripping process;

[0078] Before sliding, the output shaft of the forward and reverse motor 17 drives the rotating rod 16 to rotate along the paint stripping box 1, so that the rotating rod 16 drives the arc-shaped hopper 10 to move downward. At this time, the outer wall of the arc-shaped hopper 10 slides with the lower end of the paint stripping box 1, so that the degreased waste aluminum enters the arc-shaped groove 18 inside the arc-shaped hopper 10. Then, the output shaft of the forward and reverse motor 17 rotates in the reverse direction, pushing the arc-shaped hopper 10 to rotate upward, so that the arc-shaped hopper 10 drives the degreased waste to move upward. After rotating the arc-shaped hopper 10 to an appropriate angle, the degreased waste aluminum enters the cleaning and discharging assembly 11 for cleaning and discharging, which improves the collection efficiency, improves the automation degree and efficiency of the whole treatment process, reduces the time and cost of manual operation, and improves the stability and reliability.

[0079] When cleaning and discharging, connect the external tap water pipe to the water inlet end of the water pump 1106. The water pump 1106 transports the tap water through the water outlet end to the inside of the T-shaped pipe 1105. At this time, the waste aluminum material slides along the discharge hopper 1101 to the outside for collection. During the collection of the waste aluminum, the water is transported to the inside of the spray pipe 1103 through the T-shaped pipe 1105 and then sprayed from the nozzle 1104 onto the outer surface of the waste aluminum sheet to wash and clean the upper and lower surfaces of the degreased waste aluminum, reducing the residue of the paint stripper. The water after flushing falls into the recycling box 1102 and is recycled through the recycling box 1102 to complete the paint stripping operation of the waste aluminum, improving the cleaning efficiency, effectively removing the residual paint stripper on the surface of the waste aluminum, improving the purity and reuse value of the waste aluminum, and reducing the impact of the paint stripper on the environment and the subsequent treatment process.

[0080] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for recovering paint-stripped waste aluminum, comprising a paint-stripping box (1), characterized in that: A sorting component (2) is provided on the left side of the paint stripping box (1), a bracket (201) is provided on the sorting component (2), a conveyor belt (202) is provided at the upper end of the bracket (201), a feed pipe (3) is installed on the top surface of the bracket (201), a leak-proof block (210) is fixedly provided on the inner wall of the left end of the bracket (201), a dry-selection magnetic roller (205) is frictionally driven at the other end of the conveyor belt (202), a waste plate (206) is fixedly provided on the lower end of the right side of the bracket (201), a waste guide block (207) is fixedly provided on the bottom surface of the waste plate (206), a sorting block (208) is installed on the upper end of the side wall of the bracket (201), the sorting block (208) is inclined, and a sorting slot (209) is provided inside the sorting block (208); A crushing assembly (4) is provided at the upper end of the feed pipe (3), and two crushing rollers (401) are provided on the crushing assembly (4). A rotating shaft (402) is sleeved in the middle of the crushing roller (401), and the outer peripheral walls at both ends of the rotating shaft (402) are rotatably connected to the feed pipe (3). The rotating shaft (402) penetrates the inner wall of the feed pipe (3) and extends to the outside. A first pulley (409) is sleeved on one of the rotating shafts (402) extending to the outside. A first motor (403) is installed on the outer wall of the feed pipe (3) through a mounting seat, and the output shaft of the first motor (403) is coaxially connected to the rear end of one of the rotating shafts (402). The crushing assembly (4) comprises a fine crushing roller (404), and two crushing rollers (401) are provided. The two crushing rollers (401) are both located on the upper side of the fine crushing roller (404); A dust removal assembly (5) is provided at the lower end of the feed pipe (3), the dust removal assembly (5) comprising a first folding block (501), the first folding block (501) being provided with a second folding block (502) in parallel, the first folding block (501) and the second folding block (502) being fixedly mounted on the inner wall of the feed pipe (3), and the middle parts of the first folding block (501) and the second folding block (502) being hollow; A blower (503) is mounted on one of the outer walls of the feed pipe (3) via a mounting seat, a starting pipe of the blower (503) penetrates the outer wall of the feed pipe (3) and extends to the interior, an exhaust pipe (504) is mounted on the outer wall of the other side of the feed pipe (3), the exhaust pipe (504) is connected to the interior of the feed pipe (3), and a dust removal bag is mounted at the outlet of the exhaust pipe (504); A feed assembly (6) is installed on the top surface of the left end of the feed pipe (3), and the feed assembly (6) comprises an inclined feed block (601), a magnetic roller (602) is provided at the upper end of the inclined feed block (601), and an inclined material guide block (605) is fixedly provided on the top surface of the inclined feed block (601), and the side wall of the inclined material guide block (605) is slidably connected to the outer peripheral wall of the magnetic roller (602); The rear end of the paint stripping box (1) is evenly arranged and plugged with a plurality of heating rods (7), the heating rods (7) penetrate the rear wall of the paint stripping box (1) and extend to the interior, two stirring assemblies (8) are arranged inside the paint stripping box (1), the stirring assemblies (8) include stirring rollers (801), the bottom surface of the interior of the paint stripping box (1) is inclined, the upper end of the paint stripping box (1) is rotatably connected with a discharge plate (9), the bottom surface of the discharge plate (9) is suitable for contacting the bottom surface of the interior of the paint stripping box (1), the lower end of the discharge plate (9) is hollow, one end of the top surface of the paint stripping box (1) is open, an arc hopper (10) is arranged inside the right end of the paint stripping box (1), the outer wall of the lower end of the paint stripping box (1) is connected to a drain pipe (19) with a valve, the arc hopper (10) is provided with an arc groove (18), and the groove wall of the arc groove (18) is hollow; The right wall of the paint stripping box (1) is provided with a cleaning and discharging assembly (11), the cleaning and discharging assembly (11) comprises a discharging hopper (1101), the top surface of the middle part of the discharging hopper (1101) is hollowed out, a recovery box (1102) is provided below the discharging hopper (1101), a fixing block (1108) is fixedly provided on the outer wall of one side of the discharging hopper (1101), two nozzles (1103) are symmetrically plugged into the fixing block (1108), the inner wall of the nozzle (1103) is evenly arranged and connected to a plurality of nozzles (1104), and one end between the two nozzles (1103) is connected to a T-shaped pipe (1105); A cylinder (13) is fixedly provided on the outer wall of the upper end of the discharge plate (9); a rotating seat (14) is installed on the outer wall of the paint stripping box (1); a cylinder (15) is installed on the rotating seat (14) through a mounting seat; a piston rod of the cylinder (15) is sleeved on the cylinder (13); the piston rod of the cylinder (15) is rotatably connected to the cylinder (13); the outer wall of the arc hopper (10) is slidably connected to the lower end of the interior of the paint stripping box (1); a rotating rod (16) is fixedly provided on the arc hopper (10); the outer peripheral walls at both ends of the rotating rod (16) are rotatably connected to the paint stripping box (1); a forward and reverse motor (17) is installed on the outer wall of the paint stripping box (1) through a mounting seat; the output shaft of the forward and reverse motor (17) is coaxially connected to one end of the rotating rod (16).

2. The waste aluminum paint stripping recovery device as claimed in claim 1, characterized in that: The inclined feed block (601) is fixedly arranged on the top surface of the feed pipe (3); the bottom surface of the outer peripheral wall of the magnetic roller (602) is gap-matched with the top surface of the middle part of the inclined feed block (601); both ends of the magnetic roller (602) are rotatably connected with connecting blocks (603); the bottom surface of the connecting block (603) is fixedly connected with the top surface of the inclined feed block (601); one end of the magnetic roller (602) passes through the connecting block (603) and extends to the outside; a second pulley (604) is sleeved on the magnetic roller (602) extending to the outside; the second pulley (604) is frictionally driven with the first pulley (409) through the first belt (12).

3. The device for recovering paint-stripped waste aluminum as claimed in claim 2, characterized in that: The outer peripheral walls at both ends of the fine crushing roller (404) are rotatably connected to the feed pipe (3); the front end of the fine crushing roller (404) penetrates the inner wall of the feed pipe (3) and extends to the outside; the fine crushing roller (404) extending to the outside is sleeved with a first gear (405); one of the rotating shafts (402) is sleeved with a second gear (406); the first gear (405) and the second gear (406) are meshingly connected; the rotating shaft (402) extending to the outside is sleeved with a third gear (407); the two third gears (407) are meshing with each other; triangular blocks (408) are provided on the upper sides of the two crushing rollers (401); the outer walls of the triangular blocks (408) are fixedly connected to the inner wall of the feed pipe (3); and the bottom surface of the triangular block (408) is gap-matched with the upper end of the crushing roller (401).

4. The device for recovering paint-stripped waste aluminum as claimed in claim 3, characterized in that: The sorting component (2) comprises a conveying roller (203), the conveying roller (203) being located inside the conveying belt (202), the outer peripheral wall of the conveying roller (203) being frictionally driven with the inner wall of the conveying belt (202), the outer peripheral walls at both ends of the conveying roller (203) being rotatably connected to the bracket (201), one end of the conveying roller (203) passing through the inner wall of the bracket (201) and extending to the outside, a second motor (204) being mounted on the outer wall of the bracket (201) via a mounting seat, the output shaft of the second motor (204) being coaxially connected to the conveying roller (203) extending to the outside, and the bottom surface of the leak-proof block (210) being slidably connected to the outer wall of the conveying belt (202).

5. The device for recovering paint-stripped waste aluminum as claimed in claim 4, characterized in that: Both ends of the dry-selection magnetic roller (205) are rotatably connected to the bracket (201), the waste plate (206) is located at the lower side of one end of the conveyor belt (202), one end of the sorting block (208) is gap-matched with the outer wall of the conveyor belt (202), the other end of the sorting block (208) is fixedly arranged on the top surface of the paint stripping box (1), and the sorting trough (209) is connected to the paint stripping box (1).

6. The device for recovering paint-stripped waste aluminum as claimed in claim 5, characterized in that: The outer peripheral walls at both ends of the stirring roller (801) are rotatably connected to the paint stripping box (1); one end of the stirring roller (801) penetrates the inner wall of the paint stripping box (1) and extends to the outside; a third pulley (802) is sleeved on the stirring roller (801) extending to the outside; two third pulleys (802) are frictionally driven by a second belt (803); a third motor (804) is installed on the outer wall of the paint stripping box (1) via a mounting seat; an output shaft of the third motor (804) is coaxially connected to one of the stirring rollers (801) extending to the outside.

7. The device for recovering paint-stripped waste aluminum as claimed in claim 6, characterized in that: The discharge hopper (1101) is fixedly mounted on the upper end of the outer wall of the paint stripping box (1); a water pump (1106) is mounted on the outer wall of the recovery box (1102) via a mounting seat; the water outlet end of the water pump (1106) is connected to a T-shaped pipe (1105); and the outer wall of the lower end of the recovery box (1102) is connected to a drainage pipe (1107).

8. A method for using a waste aluminum paint stripping recovery device, characterized in that: The recovery device for depainting waste aluminum as described in claim 7 comprises the following steps: Feeding: first, the scrap aluminum material to be stripped is transported to the top surface of the left end of the inclined feed block (601), and the scrap aluminum material is made to slide from a high place to a low place by the inclined angle. During the sliding process, the magnetic roller (602) absorbs the scrap iron and other substances mixed in the scrap aluminum material, so that the scrap iron and other substances adhere to the outer wall of the magnetic roller (602). While the first motor (403) drives the first pulley (409) to rotate, the second pulley (604) is synchronously rotated by the friction transmission of the first belt (12). The second pulley (604) drives the magnetic roller (602) to rotate clockwise, so that the scrap iron and other substances adsorbed by the magnetic roller (602) are separated from the magnetic roller (602) through the obstruction of the inclined guide block (605). The separated scrap iron and other substances slide along the inclined guide block (605) and are discharged to the outside for collection. The scrap aluminum material from which the scrap iron and other substances are removed slides into the inside of the feed pipe (3); Crushing: The scrap aluminum material entering the feed pipe (3) passes through the obstruction of the two triangular blocks (408) and falls between the two crushing rollers (401). The first motor (403) drives one of the rotating shafts (402) to rotate, so that one of the rotating shafts (402) drives one of the third gears (407) to rotate synchronously. One of the third gears (407) meshes with the other third gear (407), so that the other rotating shaft (402) rotates synchronously in the opposite direction, and the two crushing rollers (401) rotate synchronously. The scrap aluminum material is initially crushed, and the crushed scrap aluminum material moves downward along the feed pipe (3). During the movement, one of the rotating shafts (402) drives the second gear (406) to rotate, and the second gear (406) meshes with the first gear (405), so that the first gear (405) drives the fine crushing roller (404) to rotate, so that the fine crushing roller (404) crushes the scrap aluminum material into smaller pieces, and the crushed scrap aluminum material continues to move downward to the dust removal component (5) for dust removal; Dust removal: The scrap aluminum material that has been crushed to a suitable size slides downward from the gap between the fine crushing roller (404), the first folding block (501) and the second folding block (502), and slides and falls along the gap between the first folding block (501) and the second folding block (502). During the falling process, it collides with the first folding block (501) and the second folding block (502), so that the dust attached to the crushed scrap aluminum material is vibrated and falls. After the dust falls, it forms dust, and the external air is transported to the feed pipe (303) through the blower (503). ), moves through the hollow portion of the first folding block (501) and is transported to the hollow portion of the second folding block (502) to the inside of the exhaust pipe (504), so that the air between the first folding block (501) and the second folding block (502) is circulated and transported, so that the dust generated when the waste aluminum material collides enters the exhaust pipe (504) through the circulation of air, and the dust inside the exhaust pipe (504) is continuously transported to the inside of the dust collecting bag for collection, and the waste aluminum material after dust removal falls onto the conveyor belt (202) of the sorting component (2); Sorting: The conveyor belt (202) is driven to rotate by the output shaft of the second motor (204), and the dry-selection magnetic roller (205) is caused to rotate synchronously by the conveyor belt (202), so that the scrap aluminum material falling on the top surface of the conveyor belt (202) moves from left to right. When the scrap aluminum material moves to the dry-selection magnetic roller (205), the scrap aluminum material passing through the dry-selection magnetic roller (205) is subjected to the high-frequency alternating strong magnetic field generated by the dry-selection magnetic roller (205), so that the scrap aluminum material generates eddy current. The eddy current generates a magnetic field opposite to the original magnetic field, and the scrap aluminum material is Due to the repulsive force of the magnetic field, the material leaps forward along the conveying direction of the conveyor belt (202) and falls into the sorting slot (209) of the sorting block (208). At this time, the non-metallic substances mixed in the scrap aluminum material penetrate the gap between the conveying block and the sorting block (208) and fall into the top surface of the scrap plate (206), and slide along the scrap plate (206) to the inside of the scrap guide block (207). The non-metallic substances are transported to the outside for collection through the scrap guide block (207), thereby completing the sorting of the scrap aluminum material. Paint stripping: The sorted waste aluminum material enters the paint stripping box (1) through the sorting block (208), and the paint stripper to be used is transported to the paint stripping box (1) through the opening on the top surface of the paint stripping box (1). At this time, the paint stripper is heated to a suitable temperature by the heating rod (7), and one of the stirring rollers (801) is driven to rotate by the output shaft of the third motor (804). At this time, one of the third pulleys (802) rotates, and the third pulley (802) drives the second belt (803) to rotate. The second belt (803) is frictionally transmitted to another stirring roller (801) to rotate, so that the waste aluminum material is fully in contact with the paint stripper, and the paint on the outer surface of the waste aluminum is separated and stripped. After the waste aluminum is stripped, the piston rod of the cylinder (15) pushes the cylinder (13) to move, so that the cylinder (13) drives the discharge plate (9) to rotate along the upper end of the paint stripping box (1). At this time, the cylinder (15) drives the rotating seat (1 4) Rotate, the rotating seat (14) rotates along the paint stripping box (1), and after the discharge plate (9) and the inner bottom surface of the paint stripping box (1) are adjusted to a suitable gap, the waste aluminum material slides along the inner bottom surface of the paint stripping box (1) from high to low. Before sliding, the output shaft of the forward and reverse motor (17) drives the rotating rod (16) to rotate along the paint stripping box (1), so that the rotating rod (16) drives the arc hopper (10) to move downward. At this time, the outer wall of the arc hopper (10) slides with the lower end of the paint stripping box (1), so that the waste aluminum after the paint stripping enters the arc groove (18) of the arc hopper (10), and then the output shaft of the forward and reverse motor (17) rotates in the opposite direction, pushing the arc hopper (10) to rotate upward, so that the arc hopper (10) drives the waste after the paint stripping to move upward, and after the arc hopper (10) is rotated to a suitable angle, the waste aluminum after the paint stripping enters the cleaning and discharging component (11) for cleaning and discharging; Cleaning and discharging: connect the external tap water pipe to the water inlet end of the water pump (1106), and the water pump (1106) delivers tap water to the inside of the T-shaped pipe (1105) through the water outlet end. At this time, the waste aluminum material slides along the discharge hopper (1101) to the outside for collection. During the collection process of the waste aluminum, the water is delivered to the inside of the spray pipe (1103) through the T-shaped pipe (1105) and then sprayed from the spray head (1104) to the outer surface of the waste aluminum sheet, so as to flush and clean the upper and lower surfaces of the waste aluminum after paint stripping, thereby reducing the residue of the paint stripping agent. After flushing, the water falls into the inside of the recycling box (1102) and is recycled through the recycling box (1102), thereby completing the paint stripping operation of the waste aluminum.

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