A continuous processing system for recycled aluminum

Abstract

The present invention discloses a continuous processing system for recycled aluminum, comprising a feed system, a paint stripping tank, an immersion and demolding tank, and a cleaning component arranged in sequence, wherein the feed system comprises a feed walkway for a single can to pass through, and a perforating device and a flattening device are provided on the upper portion of the feed walkway; the paint stripping tank, the immersion and demolding tank, and the stirring and cleaning tank have tank internal volume cavities of uniform size and shape, and an inclined rotating seat driven by a motor is formed in the tank internal volume cavity; the continuous processing system also has a rotating cage matching the tank internal volume cavity, the rotating cage is used to hold the cans processed by the feed system, and serves as a carrier for processing operations in the paint stripping tank, the immersion and demolding tank, and the stirring and cleaning tank. The present invention can be used for pre-smelting treatment of cans as recycled aluminum raw materials, processing them into smeltable aluminum materials that can be directly smelted, and has the advantages of improving reaction efficiency, reducing resource consumption, improving product quality, and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling of metal resources, and in particular to a continuous processing system for recycling aluminum. Background Art

[0002] With the advancement of technology and rising environmental awareness, the recycling of scrap aluminum has become increasingly attractive. Low-carbon recycling of scrap aluminum not only reduces resource waste but also reduces carbon dioxide emissions, aligning energy conservation and emission reduction with sustainable development. Therefore, research on green, low-carbon recycling of scrap aluminum is a crucial issue.

[0003] Compared with iron products, aluminum has high corrosion resistance. Except for some aluminum chemical containers and equipment, aluminum products are basically not corroded during their use. Therefore, under reasonable recycling process conditions, the recycling rate of scrap aluminum resources can almost be increased to more than 95%. Its recyclability is high and the regeneration efficiency is relatively objective. As a major recycling and utilization method of scrap aluminum resources, the technical path of smelting scrap aluminum resources and obtaining recycled aluminum materials is to pre-treat the recycled scrap aluminum resources, heat and smelt them, and process them into molten aluminum to obtain recycled aluminum. Compared with the process of obtaining primary aluminum ingots from bauxite mining through related processes, the use of scrap aluminum recycling to obtain recycled aluminum can save at least 95% of energy, reduce 95% of carbon dioxide emissions and 97% of water pollution, and carry out resource-based and high-value comprehensive recycling of scrap non-ferrous metals. Therefore, facing the ceiling of electrolytic aluminum production capacity, it has become an indisputable fact that the growth of the aluminum industry relies on the development of recycled aluminum. The green and low-carbon recycling of scrap aluminum can save energy and reduce carbon emissions while reducing raw material costs. It is an important way to solve the shortage of related resources and implement sustainable development.

[0004] As the most common aluminum consumable, cans are produced in large quantities, become discarded after use, and have a very short recycling cycle. They also have the advantages of high aluminum content and a high aluminum ratio, making them highly valuable for recycling. However, the recycling of cans is hindered by the fact that the surface of the cans is usually coated with a baking varnish, which has strong adhesion and is not easy to peel off. Furthermore, to prevent direct contact between the aluminum inside the can and the beverage, and to reduce the aluminum content in the beverage, a protective film is formed on the inner wall of the can. If the cans are to be recycled and made into high-quality aluminum or aluminum alloy materials, strict pretreatment is required. In the existing technology, the above-mentioned film and paint removal processes are mostly performed independently and manually, with low levels of automation and intelligence. The removal efficiency of the film and paint layers is low, and there are drawbacks such as severe pollution, high impurity content, and high energy consumption, which also prevents continuous processing. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide a continuous processing system for recycled aluminum, which is based on the pre-smelting stage of recycled aluminum cans to obtain the intermediate material to be smelted after removing the outer paint film and the inner protective film layer, so as to solve the defects in the above technical background.

[0006] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0007] A continuous processing system for recycled aluminum includes a feeding system, a paint stripping tank, an immersion stripping tank, and a cleaning component arranged in sequence:

[0008] Feeding system: The feeding system includes a feeding walkway for cans to pass through individually. A perforating device and a flattening device are provided on the upper part of the feeding walkway. The feeding system uses the perforating device and the flattening device to perform perforation and flattening operations on the cans passing through the feeding walkway individually.

[0009] Paint stripping cans: Paint stripping cans contain paint strippers that are designed to remove the paint film on the outer layer of cans.

[0010] Dipping and stripping tank: The dipping and stripping tank contains a compound component reagent for composite removal of the outer paint film and the inner protective film layer of the can;

[0011] Cleaning assembly: The cleaning assembly includes at least one stirring cleaning tank and at least one ultrasonic cleaning tank;

[0012] The paint stripping tank, the dipping and demolding tank, and the stirring and cleaning tank have tank internal volumes with the same size and shape, and an inclined rotating seat driven by a motor is formed on one side of the upper or lower part of the tank internal volume;

[0013] The continuous processing system also has a rotating cage that matches the internal volume cavity of the can, and is used to hold the cans processed by the feeding system and serve as a carrier for processing in the paint stripping tank, the dipping and demolding tank, and the stirring and cleaning tank; the rotating cage includes a cage body, an upper cover, and a rotating shaft; the cage body is a mesh cage structure with an open top surface, and the open surface is closed by the upper cover; the upper cover is a hollow plate structure, and is formed with a plurality of spoiler rods that are inserted downward into the cage body; the rotating shaft is formed at the axial center position of the rotating cage, and its upper and lower parts respectively pass through the upper cover and the cage body, and can be obliquely assembled on the rotating seat;

[0014] The angle between the rotating axis and the horizontal plane of the rotating cage assembled obliquely on the inclined rotating seat is 60 to 72 degrees.

[0015] As a further limitation, a pre-cleaning device and a magnetic separation device are also provided at the front end of the continuous processing system to pre-clean and magnetically separate the waste cans used as raw materials to remove the contents, surface contaminants, adhesive impurities and iron-containing impurities of the waste cans.

[0016] As a further limitation, the feed walkway includes a feed track and side guards provided on both sides of the feed track; the spacing between the side guards is adjustable, and the spacing between the side guards on both sides continuously decreases in the direction of travel along the feed track, and converges on the discharge side to a width that can maintain the passage of a single can;

[0017] The perforating device and the flattening device are arranged at the discharge side end of the feeding walkway.

[0018] As a further limitation, the perforating device includes a perforating seat and a buckle seat;

[0019] The perforating seat includes an assembly block, which is assembled above the feeding walkway and is driven by a motor to move up and down. The bottom surface of the assembly block is equipped with a detachable perforating needle, and the perforating needle includes a plurality of them.

[0020] The buckle-mounting seat is an inverted U-shaped structure, which is buckled on the feed walkway, and a hole matching the punching needle is formed on the buckle-mounting seat.

[0021] As a further limitation, the flattening device is arranged after the perforating device, and includes a pressing block, which is assembled above the feeding walkway and is driven by a motor to rise and fall.

[0022] As a further limitation, the paint stripper is a commercially available paint stripper, preferably a benzyl alcohol paint stripper or an alcohol ether paint stripper; and the composite component reagent is a composition of alkyl potassium hydroxide, dichloromethane, trifluoroacetic acid, phosphoric acid, a surfactant and water.

[0023] As a further limitation, an aeration device is formed on the bottom and side walls of the stirring and cleaning tank.

[0024] As a further limitation, the rotating cage is horizontally assembled in the ultrasonic cleaning tank.

[0025] As a further limitation, when the rotating cage is used to hold cans processed by the feeding system, the amount of cans loaded into the rotating cage is 65-75% of the volume of the rotating cage.

[0026] As a further limitation, when the rotating cage is used as a carrier to perform processing operations in the paint stripping tank, immersion and demolding tank and stirring and cleaning tank, the amount of processing liquid in the paint stripping tank, immersion and demolding tank and stirring and cleaning tank shall be based on covering the lower side cage slope of the rotating cage in the inclined state after assembly.

[0027] As a further limitation, the upper volume space of the cage body is cylindrical, and the lower volume space is conical or concave arc-shaped.

[0028] As a further limitation, the upper cover is sealed on the top open surface of the cage body by one or a combination of hinges, threaded connectors, buckles, clips, and plug-ins.

[0029] As a further limitation, a ball head is formed on the top of the spoiler rod for optimizing the spoiler effect.

[0030] Beneficial effects: The continuous processing system for recycled aluminum of the present invention can be used for pre-smelting treatment of cans of recycled aluminum raw materials. It can use a rotating cage to load the can raw materials, and continuously remove the outer paint film and the inner protective film layer in the paint stripping tank, the immersion and demoulding tank and the cleaning component by an overall pick-and-place method; it can effectively reduce the vacancy of the paint stripping tank, the immersion and demoulding tank and the cleaning component, realize the continuous input and output of can raw materials and paint stripping products, and the resources such as organic solvents and catalysts used in the reaction process can be fully utilized, thereby reducing the waste of resources.

[0031] Furthermore, this continuous processing system can further improve the efficiency of can raw material processing by precisely controlling and maintaining reaction conditions, thereby further reducing resource consumption and helping to lower production costs. It also helps to improve the quality of the subsequent recycled aluminum products. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the assembly of a preferred embodiment of the present invention.

[0033] Figure 2 for Figure 1 Structural style diagram of the mid-feed system.

[0034] Figure 3 Schematic diagram of the assembly of the rotating cage in the inner volume cavity of the tank.

[0035] Figure 4 Schematic diagram of the assembly of the rotating cage in the ultrasonic cleaning tank.

[0036] Among them: 1. Feeding system; 2. Paint stripping tank; 3. First stirring and cleaning tank; 4. Dipping and demolding tank; 5. Second stirring and cleaning tank; 6. Feeding crawler; 7. Side stop; 8. Buckle mount; 9. Assembly block; 10. Motor drive frame; 11. Punching needle; 12. Press block; 13. Motor drive rod; 14. Tank body; 15. Turntable drive motor; 16. Inclined turntable; 17. Cage body; 18. Rotating shaft; 19. Upper cover; 20. Tail end support seat; 21. Functional reagent; 22. Ultrasonic cleaning tank; 23. Rotating shaft fixing seat; 24. Cleaning water; 25. Rotating shaft placement slot. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solutions of the present invention and to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific illustrations.

[0038] This embodiment is only a part of the embodiments of the present invention, and represents all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention. It should be noted that the terms in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed.

[0039] See also Figures 1 to 4 The preferred embodiment of the continuous processing system for recycled aluminum shown in the figure, in this embodiment, the continuous processing system for recycled aluminum includes a feeding system 1, a paint stripping tank 2, a first stirring and cleaning tank 3, an immersion and demolding tank 4, a second stirring and cleaning tank 5, and an ultrasonic cleaning tank 22, which are arranged in sequence. The front end of the feeding system 1 is used to receive the waste cans used as raw materials and perform perforation and flattening operations on them to facilitate the first paint stripping in the paint stripping tank 2 and the subsequent second paint stripping in the immersion and demolding tank 4. The rear end of the ultrasonic cleaning tank 22 is used to process and output the paint-stripped cans. The output cans can be directly smelted in a smelting furnace to obtain recycled aluminum, or they can be compressed and packaged after being collected and transported to a large-scale scrap aluminum processing workshop / factory for centralized smelting.

[0040] In this embodiment, the feeding system 1 is a front-end structure, which is connected to a silo with a material diverting device. The silo is used to receive the cans recovered from the front end and transfer the cans recovered in the silo to the feeding system 1 through the material diverting device. In order to ensure a smooth processing flow and reduce the burden on subsequent equipment, the corresponding cans should be processed as follows:

[0041] The liquid in the can is emptied;

[0042] The cans are pre-cleaned to remove the contents, surface contaminants, and adherent impurities of the waste cans;

[0043] The cans are magnetically separated to remove iron-containing impurities from the waste cans.

[0044] The cans meeting the above processing conditions are fed into the feeding system 1, the structure of which is as follows: Figure 2As shown, it includes a feeding crawler 6 and side guards 7 arranged on both sides of the feeding crawler 6. At the same time, the entire feeding system 1 is divided into a front section and a folding section (i.e. Figure 2 The corresponding A section) and the discharge section of the latter section (i.e. Figure 2 The side guards 7 corresponding to the gathering section are continuously gathered in the direction of travel of the feeding crawler 6, that is, the spacing between the side guards 7 on both sides is continuously reduced, so that the cans fed onto the left feeding crawler 6 in the feeding system 1 can be continuously gathered by the side guards 7 on both sides and concentrated at the discharge section. In order to prevent the cans at the end of the gathering section from stacking and entering the discharge section, an inclined top guard can be further provided at the inlet of the discharge section.

[0045] The distance between the side guards 7 on both sides of the discharge section of the feeding system 1 is fixed, and the distance can only allow a single can to pass through. At the same time, the feeding system 1 is also provided with a perforating device and a flattening device in sequence at the rear of the discharge section. The perforating device includes a perforating seat and a buckle seat 8. The buckle seat 8 is an inverted U-shaped structure, which is directly buckled onto the feeding walkway and is screwed and fixed to the side guards 7 on both sides of the discharge section on both sides. Three holes arranged horizontally are formed on the flat plate surface of the buckle seat 8; and the perforating seat is provided on the upper outer side of the buckle seat 8. The perforating seat includes an assembly block 9. Three perforating needles 11 are assembled on the lower surface of the assembly block 9 in a detachable manner. These three perforating needles 11 correspond to the corresponding holes on the buckle seat 8. Three holes should be set, and a motor drive frame 10 is formed on the top surface of the assembly block 9. The motor drive frame 10 is connected to an external drive motor to drive the assembly block 9 to move up and down. During the up and down movement of the assembly block 9, the piercing needle 11 can pass through the hole on the buckle mounting seat 8, and the cans that pass through the feeding track 6 to the position of the buckle mounting seat 8 are pierced. After the piercing is completed, the motor drive frame 10 drives the assembly block 9 to lift up. At this time, the pierced cans are blocked by the buckle mounting seat 8 and fall back onto the feeding track 6, and continue to move to the flattening device position through the feeding track 6.

[0046] The flattening device of this embodiment includes a pressing block 12, the width of which is consistent with the width of the interval between the side blocks 7 on both sides of the discharge section, and the length is 20 to 30 cm. The top surface of the pressing block 12 is connected to the driving motor through a motor driving rod 13, and is driven up and down by the driving motor. During the up and down movement, the pressing block 12 flattens the cans that pass through the feeding track 6 to the flattening device position.

[0047] The cans that have been perforated and flattened by the feeding system 1 can take into account both the treatment effect and the treatment efficiency of the reagent treatment. At this time, they can be treated with the functional reagent 21. In this embodiment, the paint stripping tank 2, the first stirring and cleaning tank 3, the dipping and stripping tank 4, and the second stirring and cleaning tank 5 have similar structural styles and have tank internal volume cavities with the same size and shape. In this embodiment, Figure 2 The paint stripping can 2 of the shown style is described in detail:

[0048] The tank body 14 of the paint stripping tank 2 is a special-shaped tank body, one side of which has a 60° slope, and the bottom surface is perpendicular to the slope. The paint stripping tank 2 is formed with an inclined swivel seat 16 on the bottom surface of the tank body 14. The inclined swivel seat 16 is assembled and connected to the swivel drive motor 15 on the outside of the tank body 14, and the inclined swivel seat 16 can be driven to rotate by the swivel drive motor 15; and on the upper part of the slope of the tank body 14, a tail end support seat 20 with a U-shaped bearing assembly position on the top is formed.

[0049] A rotating cage is detachably mounted in the tank body 14 , and the rotating cage includes a cage body 17 , an upper cover 19 and a rotating shaft 18 .

[0050] In this embodiment, the cage 17 of the rotating cage is a mesh structure with a cylindrical upper volume and a concave arc-shaped lower volume. The top surface of the cage 17 is open, serving as an opening to receive the cans that have been perforated and flattened and fed into the feeding system 1. To ensure both the treatment effect and efficiency of the cans within the cage 17, when the rotating cage is used to hold cans processed by the feeding system 1, the optimal amount of cans loaded into the cage 17 should be controlled to 65-75% of the cage's volume.

[0051] In this embodiment, the upper cover 19 is a hollow plate structure, one side of which is hinged to the open surface of the cage body 17, and the other side is fastened to the open surface of the cage body 17 by a snap buckle to achieve surface closure of the open surface of the cage body 17; in addition, the upper cover 19 is also formed with a number of spoiler rods (not marked in the figure) that are inserted downward into the cage body. These spoiler rods are rigid straight rods with variable length and arrangement. They can be used to form irregular turbulence in the cage body 17 during the rotation of the cage. In order to optimize this spoiler effect and prevent the cans from damaging the spoiler rods, the corresponding spoiler rod length should not exceed 10 cm for the cans inserted into the cage body 17, and a ball head is formed on the top of the spoiler rod for optimizing the spoiler effect.

[0052] In this embodiment, the rotating shaft 18 is formed at the axial center position of the rotating cage, and its upper and lower parts respectively pass through the upper cover 19 and the cage body 17 through the assembly seats. The lower end of the rotating shaft 18 has an assembly portion for fixed assembly with the inclined rotating seat 16, and the upper part is formed with an assembly bearing that matches the tail end support seat 20.

[0053] By means of the rotating shaft 18 having the above-mentioned structural features, the rotating cage can be rotated in the tank body 14 in the following manner: Figure 3The illustrated style is for oblique assembly, and the angle between the rotating shaft 18 and the horizontal plane of the rotating cage that is obliquely assembled on the oblique rotating seat 16 should be maintained at 60 to 72 degrees. For example, in this embodiment, the angle between the rotating shaft 18 and the horizontal plane of the assembled rotating cage is 60 degrees.

[0054] In this embodiment, the assembly of the rotating shaft 18 and the inclined rotating seat 16 allows the rotating cage to rotate around the axis through the rotating seat drive motor 15. During the rotation process, the inclined cage structure cooperates with the spoiler rod provided on the upper cover 19 to effectively improve the reaction rate and reaction effect of the functional reagent 21 added to the can body 14 on the can material contained in the cage body 17.

[0055] In the different paint stripping tanks 2, the first stirring and cleaning tank 3, the dipping and stripping tank 4 and the second stirring and cleaning tank 5, Figure 3 The difference based on the structural features only lies in the choice of functional reagent 21, among which:

[0056] The functional agent 21 used in the paint stripping tank 2 is a commercially available alcohol ether paint stripper. This paint stripper can quickly penetrate the interior of the paint film, decompose the paint film, and cause it to fall off. In addition, the alcohol ether paint stripper does not produce harmful substances during the paint stripping process and does not cause pollution to the environment or the human body. The paint stripping tank 2 can be used to quickly remove the outer paint film of the can.

[0057] The functional reagent 21 used in the immersion stripping tank 4 is a composition of alkyl potassium hydroxide, dichloromethane, trifluoroacetic acid, phosphoric acid, a surfactant and water. This composition has a removal effect on the outer paint film and the inner protective film layer of the can. It can be used to remove the inner protective film layer of the inner layer of the can, and can also be used to remove the outer paint film that has not been removed cleanly in the paint stripping tank 2 for a second time.

[0058] In order to ensure the treatment effect and efficiency of the functional reagent 21 and avoid waste of reagents, whether it is the paint stripping tank 2, the immersion and demolding tank 4 or the first stirring and cleaning tank 3, the second stirring and cleaning tank 5, the functional reagent 21 added to the tank body 14 shall be based on the lower side slope of the cage body 17 of the covering cage in the inclined state.

[0059] The functional reagents 21 used in the first stirring and cleaning tank 3 and the second stirring and cleaning tank 5 are both clean water, which is used to clean the cans after being processed by the paint stripping tank 2 and the immersion film stripping tank 4, so that the paint film impurities peeled off float on the surface of the functional reagents 21 and are then cleaned together.

[0060] In this embodiment, the transfer of cans among the above-mentioned paint stripping tank 2, the first stirring and cleaning tank 3, the immersion and demolding tank 4 and the second stirring and cleaning tank 5 is carried out through the rotating cage as a whole. The transfer from the paint stripping tank 2 to the first stirring and cleaning tank 3 is taken as an example. After the paint stripping operation in the paint stripping tank 2 is completed, the rotating shaft 18 and the inclined rotating seat 16 are loosened from the bottom, and then the rotating cage as a whole is removed from the inclined rotating seat 16 and the tail end support seat 20, and then the removed rotating cage as a whole is installed on the inclined rotating seat 16 and the tail end support seat 20 of the first stirring and cleaning tank 3, and then the end of the rotating shaft 18 is fixed on the inclined rotating seat 16, that is, the rotating cage assembly is completed, and the first stirring and cleaning operation can be carried out at this time.

[0061] In different embodiments, the first stirring and cleaning tank 3 and the second stirring and cleaning tank 5 as cleaning components can also be modified according to the treatment effects of the corresponding paint stripping tank 2 and immersion and film stripping tank 4, such as being eliminated or multiple arranged in series. However, it should be ensured that at least one stirring and cleaning operation is performed after exiting the immersion and film stripping tank 4 and before entering the ultrasonic cleaning tank 22. In addition, aeration devices can also be formed on the bottom and side walls of the corresponding first stirring and cleaning tank 3 and / or second stirring and cleaning tank 5 to improve the treatment effect of paint film impurities attached to the surface of the can.

[0062] The ultrasonic cleaning tank 22 is the end of the cleaning assembly and is mainly used to process the paint film impurities that enter the dead corners of the cans during the paint stripping tank 2 and the immersion stripping tank 4. The rotating cage is also assembled as a whole in the ultrasonic cleaning tank 22, but its assembly style is different, such as Figure 4 As shown, the rotating cage is horizontally assembled in the ultrasonic cleaning tank 22. The corresponding ultrasonic cleaning tank 22 has a length that matches the height of the rotating cage, and a rotating shaft fixing seat 23 is formed on the side walls on both sides in the length direction. A rotating shaft placement groove 25 is formed on the rotating shaft fixing seat 23. By placing the two ends of the rotating shaft 18 of the rotating cage in the rotating shaft placement grooves 25 on the rotating shaft fixing seat 23, the rotating cage can be horizontally assembled in the ultrasonic cleaning tank 22 as shown in the figure, and ultrasonic cleaning can be performed using the cleaning water 24 in the ultrasonic cleaning tank 22.

[0063] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous processing system for recycled aluminum, characterized in that: It includes the sequentially arranged feeding system, paint stripping tank, dipping and stripping tank and cleaning components: Feeding system: The feeding system includes a feeding walkway for cans to pass through individually. A perforating device and a flattening device are provided on the upper part of the feeding walkway. The feeding system uses the perforating device and the flattening device to perform perforation and flattening operations on the cans passing through the feeding walkway individually. Paint stripping cans: Paint stripping cans contain paint strippers that are designed to remove the paint film on the outer layer of cans. Dipping and stripping tank: The dipping and stripping tank contains a compound component reagent for composite removal of the outer paint film and the inner protective film layer of the can; Cleaning assembly: The cleaning assembly includes at least one stirring cleaning tank and at least one ultrasonic cleaning tank; The paint stripping tank, the dipping and demolding tank, and the stirring and cleaning tank have tank internal volumes with the same size and shape, and an inclined rotating seat driven by a motor is formed on one side of the upper or lower part of the tank internal volume; The continuous processing system also has a rotating cage that matches the internal volume cavity of the can, and is used to hold the cans processed by the feeding system and serve as a carrier for processing in the paint stripping tank, the dipping and demolding tank, and the stirring and cleaning tank; the rotating cage includes a cage body, an upper cover, and a rotating shaft; the cage body is a mesh cage structure with an open top surface, and the open surface is closed by the upper cover; the upper cover is a hollow plate structure, and is formed with a plurality of spoiler rods that are inserted downward into the cage body; the rotating shaft is formed at the axial center position of the rotating cage, and its upper and lower parts respectively pass through the upper cover and the cage body, and can be obliquely assembled on the rotating seat; The angle between the rotating axis and the horizontal plane of the rotating cage assembled obliquely on the inclined rotating seat is 60 to 72 degrees.

2. The continuous processing system for recycled aluminum according to claim 1, characterized in that The front end of the continuous processing system is also equipped with a pre-cleaning device and a magnetic separation device to pre-clean and magnetically separate the waste cans used as raw materials, removing the contents, surface contaminants, adhesive impurities and iron-containing impurities of the waste cans.

3. The continuous processing system for recycled aluminum according to claim 1, characterized in that The feeding walkway includes a feeding track and side guards arranged on both sides of the feeding track; the spacing between the side guards is adjustable. In the direction of travel along the feeding track, the spacing between the side guards on both sides continuously decreases, and on the discharging side, it is retracted to a width that can maintain the passage of a single can.

4. The continuous processing system for recycled aluminum according to claim 3, characterized in that The perforating device and the flattening device are arranged at the discharge side end of the feeding walkway.

5. The continuous processing system for recycled aluminum according to claim 1, characterized in that The perforating device includes a perforating seat and a buckle seat; The perforating seat includes an assembly block, which is assembled above the feeding walkway and is driven by a motor to move up and down. The bottom surface of the assembly block is equipped with a detachable perforating needle, and the perforating needle includes a plurality of them. The buckle-mounting seat is an inverted U-shaped structure, which is buckled on the feed walkway, and a hole matching the punching needle is formed on the buckle-mounting seat.

6. The continuous processing system for recycled aluminum according to claim 1, characterized in that The flattening device is arranged behind the perforating device and includes a pressing block. The pressing block is assembled above the feeding walkway and is driven by a motor to rise and fall.

7. The continuous processing system for recycled aluminum according to claim 1, characterized in that The paint stripper is a commercially available benzyl alcohol paint stripper or a commercially available alcohol ether paint stripper; and the composite component reagent is a composition of alkyl potassium hydroxide, dichloromethane, trifluoroacetic acid, phosphoric acid, a surfactant and water.

8. The continuous processing system for recycled aluminum according to claim 1, characterized in that When the rotating cage is used to hold cans processed by the feeding system, the amount of cans loaded into the rotating cage is 65-75% of the cage volume.

9. The continuous processing system for recycled aluminum according to claim 1, characterized in that When the rotating cage is used as a carrier to perform processing operations in the paint stripping tank, immersion and demolding tank and stirring and cleaning tank, the amount of processing liquid in the paint stripping tank, immersion and demolding tank and stirring and cleaning tank shall be based on covering the lower side cage slope of the rotating cage in the inclined state after assembly.

10. The continuous processing system for recycled aluminum according to claim 1, characterized in that A ball head is formed on the top of the spoiler rod for optimizing the spoiler effect.

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