Molten aluminum impurity removal device for waste aluminum recovery

Abstract

The invention relates to a molten aluminum impurity removal device for waste aluminum recovery, and relates to the technical field of waste aluminum recovery. Comprising an impurity removal tank body, a material injection connector, a rough filtration mechanism and a fine filtration mechanism. The rough filtration mechanism can effectively remove large impurities in the molten aluminum through a rotatable filter roller, a vibration assembly and a scraper assembly, and the fine filtration mechanism is matched with a sliding scraper through a main fine filtration plate to complete further precise filtration. Meanwhile, the device is provided with a slag outlet, a grinding roller, a driven roller, a cleaning box and other structures, it is ensured that impurities are thoroughly removed, and maintenance is convenient. The effect of improving the impurity removal efficiency and precision of the molten aluminum is achieved, the impurity residual rate is remarkably reduced, and the quality of the molten aluminum in the waste aluminum recovery process is optimized.

Description

Technical Field

[0001] This application relates to the technical field of waste aluminum recycling, and particularly to an impurity removal device for aluminum liquid in waste aluminum recycling. Background Art

[0002] During the waste aluminum recycling process, the aluminum liquid impurity removal device is one of the key equipment to ensure the quality of recycled aluminum. With the rapid development of the waste aluminum recycling industry, the demand for aluminum liquid impurity removal devices is increasing day by day. Efficient impurity removal technology can not only improve the purity of recycled aluminum, but also significantly reduce production costs and enhance resource utilization rate. Driven by both environmental protection and economy, the research and application of aluminum liquid impurity removal devices for waste aluminum recycling have received extensive attention.

[0003] In the prior art, to solve the problem of impurities in aluminum liquid, the commonly used methods include filtration by a fixed filter plate, vibration screening, and regular cleaning by a scraper, etc. The fixed filter plate intercepts impurities by setting multiple layers of filter meshes on the flow path of aluminum liquid; vibration screening separates impurities from the liquid through mechanical vibration; the regular cleaning method by a scraper is to install a scraper on the surface of the filter plate, and when the impurities accumulate to a certain extent, the impurities are scraped off by the scraper. In addition, there are also some technologies that combine multiple above-mentioned means, such as setting a vibration mechanism or an auxiliary scraper below the filter plate to enhance the filtering effect.

[0004] However, these prior arts generally have a problem: when there are more impurities or larger blocky impurities in the aluminum liquid, the filter plate is prone to quickly accumulate impurities and become blocked, thus significantly reducing the filtration efficiency. Especially during continuous operation, the filtration speed cannot be kept consistent, affecting the overall production efficiency. Therefore, how to achieve efficient and continuous impurity removal of aluminum liquid has become an urgent technical problem to be solved. Summary of the Invention

[0005] To solve the above problems, this application provides an impurity removal device for aluminum liquid in waste aluminum recycling.

[0006] An impurity removal device for aluminum liquid in waste aluminum recycling provided by this application adopts the following technical solutions: An impurity removal device for aluminum liquid in waste aluminum recycling includes an impurity removal tank body. A feeding interface is provided at the top of the impurity removal tank body. A coarse filtration mechanism and a fine filtration mechanism are arranged in the impurity removal tank body. The coarse filtration mechanism includes a filter drum that can rotate during the impurity removal process. Filter holes are provided on the filter drum. The coarse filtration mechanism also includes a vibration assembly that makes the filter drum shake up and down during the filtration process. The coarse filtration mechanism also includes a scraper assembly. The scraper assembly includes a first scraper and a second scraper that are in contact with the surface of the filter drum. A slag discharge port is also provided on the impurity removal tank body, and a rolling roller and a driven roller are arranged at the slag discharge port.

[0007] By adopting the above technical solution, the aluminum liquid impurity removal device for waste aluminum recycling can effectively solve the problems of easy blockage of the filter plate and low filtration efficiency in the prior art. During the rotation process, the filter drum can preliminarily filter the impurities in the aluminum liquid. The designed filter holes on it can intercept larger blocky impurities, and at the same time, the rotational movement helps to reduce the accumulation of impurities. The vibration component makes the filter drum shake up and down during the filtration process, further avoiding the accumulation of impurities on the surface of the filter drum, improving the filtration efficiency and ensuring the continuity of the filtration process. The first scraper and the second scraper in the scraper component are in contact with the surface of the filter drum, and can scrape off the impurities attached to its surface in time during the rotation of the filter drum, preventing blockage and maintaining a stable filtration speed. The rolling roller and the driven roller arranged at the slag outlet can extrude the scraped impurities to reduce the volume, facilitating subsequent cleaning and treatment processes.

[0008] Preferably, the vibration component includes a fixed frame, in which a movable block is movably arranged. The driving shaft of the filter drum is rotatably arranged on the movable block. A sliding shaft is fixedly arranged above and below the movable block respectively, and the sliding shaft above the movable block is movably inserted into the fixed frame. Upper springs and lower springs are respectively sleeved on the two sliding shafts.

[0009] By adopting the above technical solution, the fixed frame in the vibration component provides a stable support structure for the movable block, enabling the driving shaft of the filter drum to rotate on the movable block. The sliding shafts arranged above and below the movable block and the upper springs and lower springs sleeved on the sliding shafts respectively can make the filter drum produce an up-and-down shaking effect during the rotation process. This shaking helps to prevent the accumulation of impurities on the surface of the filter drum, thereby reducing the possibility of blockage of the filter plate and improving the filtration efficiency. At the same time, the elastic effect of the springs can buffer the impact force during the filtration process and extend the service life of the equipment.

[0010] Preferably, the length of the lower spring is longer than the sleeved sliding shaft, and a weighing element is fixedly arranged on the fixed frame, and the bottom of the lower spring abuts against the weighing element.

[0011] By adopting the above technical solution, the length of the lower spring is longer than the sleeved sliding shaft, which can ensure that the movable block has a sufficient stroke range during the up-and-down shaking, thereby enhancing the vibration effect of the filter drum. At the same time, the weighing element arranged on the fixed frame abuts against the bottom of the lower spring, which can monitor the pressure change of the lower spring in real time, and then reflect the degree of impurity accumulation on the filter drum, providing data support for automatic control and improving the intelligent level and filtration efficiency of the impurity removal device.

[0012] Preferably, the vibration component further includes a counterweight handle fixedly arranged on the driving shaft, and the cross section of the counterweight handle is fan-shaped.

[0013] By adopting the above technical solution, during the rotation of the filtering drum, due to the design of its sector-shaped cross-section, the counterweight handle can generate an unbalanced force during rotation, thereby further enhancing the vibration effect of the filtering drum. This vibration can effectively prevent impurities from accumulating on the surface of the filtering drum, ensuring the continuity and efficiency of the filtering process.

[0014] Preferably, the first scraper is movably installed inside the impurity removal tank body through a torsion spring. The scraper assembly further includes a coarse filter plate, which is fixedly arranged inside the impurity removal tank body. The coarse filter plate is rotatably connected to the second scraper through a torsion spring.

[0015] By adopting the above technical solution, the first scraper is movably installed inside the impurity removal tank body through a torsion spring, enabling the first scraper to flexibly adjust its angle during the filtering process, effectively avoiding blockage problems caused by impurity accumulation, and improving the filtering efficiency.

[0016] Preferably, the fine filtering mechanism includes a main fine filter plate arranged below the filtering drum. A scraping assembly is arranged on the main fine filter plate. The scraping assembly includes a sliding scraper. Driving handles are provided on both sides of the sliding scraper and extend outside the impurity removal tank body and are driven to scrape along the main fine filter plate through a screw mechanism.

[0017] By adopting the above technical solution, the main fine filter plate can further finely filter the molten aluminum after being filtered by the coarse filtering mechanism, effectively removing residual fine impurities. The sliding scraper is driven by a screw mechanism and can continuously scrape along the main fine filter plate, timely removing the impurities accumulated on the surface of the main fine filter plate, preventing the filtering holes from being blocked, thereby maintaining a high filtering efficiency and a stable filtering speed. Compared with traditional fixed filter plates, this design realizes a continuous and uninterrupted filtering process, especially suitable for the treatment of molten aluminum with more impurities, significantly improving the working performance of the overall impurity removal device.

[0018] Preferably, a cleaning box is provided on the side of the impurity removal tank body. The cleaning box is communicated with the inside of the impurity removal tank body. The cleaning box is arranged at the moving end of the sliding scraper. A side fine filter plate is arranged inside the cleaning box, and a return pipe connecting the cleaning box and the inside of the impurity removal tank body is arranged below the side fine filter plate.

[0019] By adopting the above technical solution, the setting of the cleaning box enables the sliding scraper to introduce the scraped impurities into the cleaning box for temporary storage after scraping the main fine filter plate, effectively preventing the impurities from re-mixing into the molten aluminum. The addition of the side fine filter plate further secondarily filters the mixture introduced into the cleaning box to ensure effective separation of the impurities. At the same time, the design of the return pipe enables the molten aluminum filtered by the side fine filter plate to flow back into the impurity removal tank body, improving the recycling rate of the molten aluminum. This design of the cleaning box significantly improves the overall filtering efficiency and continuous operation ability of the impurity removal device, ensuring the stability of the filtering process.

[0020] Preferably, a door is provided on the cleaning box.

[0021] By adopting the above technical solution, providing a door on the cleaning box can facilitate the operator to regularly clean and maintain the inside of the cleaning box, ensuring that the fine filter plate and the return pipe inside the cleaning box will not be blocked due to impurity accumulation, thereby guaranteeing the long-term stable operation and filtering effect of the entire impurity removal device.

[0022] Preferably, tooth-shaped blocks are provided on the surfaces of the rolling roller and the driven roller, the coarse filter plate is inclined, and the driven roller is rotatably arranged at one end of the coarse filter plate close to the door.

[0023] By adopting the above technical solution, the tooth-shaped blocks provided on the surfaces of the rolling roller and the driven roller can effectively increase the grasping force for impurities. In the case where the coarse filter plate is inclined and the driven roller is rotatably arranged at one end of the coarse filter plate close to the door, after the impurities are scraped off by the scraper assembly and fall onto the coarse filter plate, they can be better squeezed and transported by the rolling roller and the driven roller, preventing impurity accumulation or incomplete sliding, thereby improving the efficiency and reliability of impurity discharge.

[0024] Preferably, a particle detection assembly is provided on the material injection interface. The particle detection assembly includes a bypass pipe communicated with the material injection interface. An ultrasonic device is arranged inside the bypass pipe, and a reflection lining is fixedly arranged inside the material injection interface along the signal transmission path of the ultrasonic device. The ultrasonic device and the reflection lining enable the signal to be transmitted in a V-shaped path.

[0025] By adopting the above technical solution, the ultrasonic device inside the bypass pipe cooperates with the reflection lining inside the material injection interface to enable the signal to be transmitted in a V-shaped path, which can accurately detect the size and distribution of particles in the molten aluminum. This design enables the impurity condition to be judged before the molten aluminum enters the impurity removal tank body, providing data support for the subsequent filtering process, thereby improving the adaptability and filtering efficiency of the entire impurity removal device.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the rotation of the filtering drum, the up-and-down shaking is realized through the vibration assembly, which can effectively prevent impurities from accumulating and blocking at the filtering holes, thereby greatly improving the filtering efficiency and maintaining the stability of the filtering speed; 2. The first scraper and the second scraper of the scraper assembly are in contact with the surface of the filtering drum, which can timely remove the impurities on the surface of the filtering drum, avoid the influence of impurity accumulation on the filtering performance, and realize continuous and uninterrupted filtering operation; 3. The rolling roller and the driven roller provided at the slag outlet can perform preliminary crushing treatment on the discharged impurities, facilitating the subsequent cleaning and treatment of the impurities, and at the same time reducing the risk of blockage of the entire impurity removal device by large pieces of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective view of an embodiment of the present application; Figure 2 is a perspective cross-sectional view of the internal structure of the present application; Figure 3 is a perspective cross-sectional view of the specific structure of the vibration assembly.

[0028] Explanation of reference numerals: 1, injection port; 11, ultrasonic attenuation sensor; 12, ultrasonic device; 13, bypass pipe; 14, reflection lining; 21, filter drum; 211, drive shaft; 22, counterweight handle; 23, upper spring; 24, lower spring; 25, sliding shaft; 26, fixed bracket; 27, movable block; 28, weighing element; 31, first scraper; 32, second scraper; 33, coarse filter plate; 41, sliding scraper; 42, drive handle; 43, main fine filter plate; 44, cleaning box; 441, box door; 442, side fine filter plate; 443, return pipe; 6, impurity removal tank body; 5, lead screw mechanism; 61, slag outlet; 71, rolling roller; 711, tooth-shaped block; 72, driven roller. Detailed implementation manners

[0029] The following further describes the present application in detail with reference to the Figures 1-3 accompanying drawings.

[0030] In the description of the invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] An embodiment of the present application discloses an aluminum liquid impurity removal device for waste aluminum recycling. Referring to Figures 1 to 3 , it includes an impurity removal tank body 6. A feed injection port 1 is provided at the top of the impurity removal tank body 6. A coarse filtration mechanism and a fine filtration mechanism are arranged inside the impurity removal tank body 6. The coarse filtration mechanism includes a filter drum 21 that can rotate during the impurity removal process. Specifically, the filter drum 21 includes a drum body and a drive shaft 211. The drum body is made of stainless steel, and filter holes are evenly formed on its outer surface. The coarse filtration mechanism further includes a vibration assembly that causes the filter drum 21 to shake up and down during the filtration process. The coarse filtration mechanism further includes a scraper assembly. The scraper assembly includes a first scraper 31 and a second scraper 32 that are in contact with the surface of the filter drum 21. A slag outlet 61 is also formed on the impurity removal tank body 6. A rolling roller 71 and a driven roller 72 are arranged at the slag outlet 61. Through the synergistic effect of rotation, vibration, and scraping, the blockage of the filter drum 21 is effectively prevented, and the filtration efficiency can be significantly improved.

[0032] The vibration assembly includes a fixed frame 26, which is arranged outside the impurity removal tank body 6. An active block 27 is movably arranged inside the fixed frame 26. The drive shaft 211 of the filter drum 21 is rotatably arranged on the active block 27. A sliding shaft 25 is fixedly arranged above and below the active block 27 respectively. And the sliding shaft 25 above the active block 27 is movably inserted into the fixed frame 26. Upper springs 23 and lower springs 24 are respectively sleeved on the two sliding shafts 25. The length of the lower spring 24 is longer than the sleeved sliding shaft 25. A weighing element 28 is fixedly arranged on the fixed frame 26. The bottom of the lower spring 24 abuts against the weighing element 28. The vibration assembly further includes a counterweight handle 22 fixedly arranged on the drive shaft 211, and the cross section of the counterweight handle 22 is fan-shaped. The drive shaft 211 is connected to an external drive device through a universal joint. When the drive shaft 211 drives the filter drum 21 to roll, the arrangement of the counterweight handle 22 will cause the drive shaft 211 to swing up and down under the influence of the offset inertia during rotation. And the arrangement of the active block 27 enables the drive shaft 211 to compress the upper spring 23 and the lower spring 24 respectively when swinging. The arrangement of the two sliding shafts 25 plays a guiding role in the up and down swing of the drive shaft 211. The bottom of the lower spring 24 abuts against the weighing element 28, which is used to monitor the weight of the impurities attached to the filter drum 21 in real time. This design can not only effectively reduce the vibration amplitude of the filter drum 21, but also adjust the vibration frequency and amplitude by adjusting the rotation speed of the filter drum 21 according to the weight of the impurities, and can effectively remove the impurities attached to the filter drum 21.

[0033] The first scraper 31 is movably installed inside the impurity removal tank body 6 through a torsion spring. The scraper assembly further includes a coarse filter plate 33 which is fixedly arranged inside the impurity removal tank body 6. The coarse filter plate 33 and the second scraper 32 are rotatably connected through a torsion spring. Since the first scraper and the second scraper 32 are in direct contact with the surface of the filter drum 21, when the filter drum 21 moves up and down, it is necessary to keep the first scraper 31 and the second scraper 32 always in close contact with the surface of the filter drum 21. Therefore, the setting of the torsion spring can always press the first scraper 31 and the second scraper 32 against the surface of the filter drum 21 by elasticity, so as to realize scraping the impurities on the filter drum 21. The first scraper 31, the second scraper 32 and the coarse filter plate 33 are all inclined. The second scraper 32 is rotatably connected to the coarse filter plate 33 through a torsion spring. The second scraper 32 scrapes off the impurities on the surface of the filter drum 21 and rolls them along the surface of the second scraper 32 towards the direction of the coarse filter plate 33. In order to improve the coarse filtering effect, the second scraper 32 is also provided with the same filter holes as the coarse filter plate 33, so that the impurities are also filtered again synchronously during the process of rolling along the second scraper 32 towards the coarse filter plate 33. Tooth-shaped blocks 711 are provided on the surfaces of both the rolling roller 71 and the driven roller 72. The driven roller 72 is rotatably arranged at one end of the coarse filter plate 33 close to the box door 441. The rolling roller 71 is driven by a motor. The motor driving the rolling roller 71 and the motor driving the filter drum 21 are both arranged outside the impurity removal tank body 6 to avoid overheating. When the rolling roller 71 is driven to rotate, the driven roller 72 is driven to rotate synchronously through the tooth-shaped blocks 711. When the impurities pass through the rolling roller 71, they will be crushed by the rolling roller 71 and the driven roller 72, and the larger particles of impurities will be crushed. At the same time, the aluminum liquid carried in the impurities will also be extruded during the crushing process.

[0034] The fine filtering mechanism includes a main fine filter plate 43 arranged below the filter drum 21. A scraping component is arranged on the main fine filter plate 43. The scraping component includes a sliding scraper 41. Driving handles 42 are arranged on both sides of the sliding scraper 41. The driving handles 42 extend outside the impurity removal tank body 6 and are driven by a screw mechanism 5 to scrape along the main fine filter plate 43. The aluminum liquid that has passed through the coarse filtration will pass through the fine filter plate under the action of gravity. At this time, there are fewer impurities in the aluminum liquid that has passed through the coarse filtration, and the speed of accumulating impurities on the main fine filter plate 43 is relatively slow. The sliding scraper 41 is driven by the screw mechanism 5 to scrape the main fine filter plate 43 regularly to avoid the reduction of the filtering efficiency of the main fine filter plate 43 caused by the accumulation of impurities.

[0035] A cleaning box 44 is provided on the side of the impurity removal tank body 6. The cleaning box 44 is communicated with the inside of the impurity removal tank body 6. The cleaning box 44 is arranged at the moving end of the sliding scraper 41. The sliding scraper 41 pushes impurities into the cleaning box 44. The cleaning box 44 has a certain volume and can store a certain amount of impurities. A side fine filter plate 442 is arranged in the cleaning box 44. The impurities are evenly laid on the side fine filter plate 442. A box door 441 is provided on the cleaning box 44 to facilitate the regular cleaning of the impurities on the side fine filter plate 442. The impurities on the side fine filter plate 442 slowly precipitate the molten aluminum by their own gravity. A return pipe 443 communicating the cleaning box 44 with the inside of the impurity removal tank body 6 is arranged below the side fine filter plate 442. The return pipe 443 re-introduces the molten aluminum filtered by the side fine filter plate 442 into the impurity removal tank body 6. The filtered molten aluminum flows out through a pipe orifice provided at the bottom of the impurity removal tank body 6.

[0036] A particle detection component is provided on the charging interface 1. The particle detection component includes a bypass pipe 13 communicated with the charging interface 1. An ultrasonic device 12 is arranged in the bypass pipe 13. The ultrasonic device 12 includes an ultrasonic transmitter and an ultrasonic receiver. By measuring the attenuation degree of the ultrasonic wave when propagating in the medium and combining with the change of the sound velocity, the concentration and size of the particles are deduced. A reflection lining 14 is fixedly arranged inside the charging interface 1 along the signal transmission path of the ultrasonic device 12. The ultrasonic device 12 and the reflection lining 14 enable the signal to be transmitted in a V-shaped path. The function of the particle detection component is to provide front-end signal support for the rotation speed of the filtering roller 21, so as to facilitate the automatic control of the filtering efficiency of the device through a program.

[0037] The implementation principle of the embodiment of this application is as follows: Data collection: The ultrasonic device 12 is fixedly arranged at one end of the bypass pipe 13 and emits ultrasonic signals with a transmission frequency of 20 kHz to 40 kHz. The reflection lining 14 is made of a metal material and its surface is polished to ensure clear signal reflection. The ultrasonic signal transmitted through the V-shaped path can effectively detect the particle concentration in the molten aluminum. In addition, a flow dividing valve is arranged at the outlet of the bypass pipe 13 to control the flow rate of the molten aluminum and avoid overloading the filtering roller 21 due to excessive flow rate. By the particle detection component, the particle concentration in the molten aluminum is monitored in real time, providing accurate data support for the subsequent filtering process. During the coarse filtering process, the weighing element 28 can be used as a back-end signal feedback, cooperate with the ultrasonic signal for data correction, monitor the filtering process in real time, prevent the situation of a large number of impurities increasing instantaneously, and effectively avoid the congestion of impurities.

[0038] After the molten aluminum enters the impurity removal tank body 6, it is first preliminarily filtered by the coarse filtration mechanism. During the rotation of the filtration drum 21, with the up-and-down shaking generated by the vibration assembly, the accumulation of impurities is effectively prevented. At the same time, the scraper assembly timely removes the impurities on the surface of the drum. The filtration drum 21 rotates towards the direction of the second scraper 32. When the molten aluminum comes into contact with the filtration drum 21, it will be scattered by the rotation of the filtration drum 21, and the impurities aggregated in the molten aluminum can be broken. The molten aluminum will pass through the coarse filtration holes on the upper and lower surfaces of the filtration drum 21 in turn under the action of gravity for filtration. Some impurities will be thrown onto the second scraper 32 by the filtration drum 21, and some impurities will also be scraped off by the second scraper 32. The first scraper 31 is a supplementary cleaning of the second scraper 32, scraping off the remaining little impurities and dropping them onto the main fine filter plate 43. The impurities scraped by the second scraper 32 will be filtered again by passing through the second scraper 32 and the coarse filter plate 33 in turn, then pass through the rolling roller 71, and then the rolling roller 71 squeezes out the remaining molten aluminum and breaks it. The broken impurities are discharged through the slag outlet 61.

[0039] The molten aluminum after coarse filtration flows into the fine filtration mechanism and is finely filtered through the main fine filter plate 43. The sliding scraper 41 reciprocates along the surface of the main fine filter plate 43 to remove the fine particle impurities attached to the surface and push them into the cleaning box 44. The impurities are evenly laid on the side fine filter plate 442. The molten aluminum naturally precipitates by gravity, is re-introduced into the impurity removal tank body 6 through the return pipe 443, and flows out through the pipe orifice provided at the bottom of the impurity removal tank body 6 together with the molten aluminum filtered by the main fine filter plate 43, finally realizing the filtration of the molten aluminum.

[0040] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An aluminum liquid impurity removal device for waste aluminum recycling, characterized in that: It includes an impurity removal tank body (6). A feeding interface (1) is provided at the top of the impurity removal tank body (6). A coarse filtration mechanism and a fine filtration mechanism are arranged inside the impurity removal tank body (6). The coarse filtration mechanism includes a filter drum (21) that can rotate during the impurity removal process. Filter holes are provided on the filter drum (21). The coarse filtration mechanism further includes a vibration assembly that causes the filter drum (21) to shake up and down during the filtration process. The coarse filtration mechanism further includes a scraper assembly. The scraper assembly includes a first scraper (31) and a second scraper (32) that are in contact with the surface of the filter drum (21). A slag outlet (61) is also provided on the impurity removal tank body (6). A rolling roller (71) and a driven roller (72) are arranged at the slag outlet (61).

2. The aluminum liquid impurity removal device for waste aluminum recycling according to claim 1, wherein: The vibration assembly includes a fixed frame (26). An active block (27) is movably arranged inside the fixed frame (26). The drive shaft (211) of the filter drum (21) is rotatably arranged on the active block (27). A sliding shaft (25) is fixedly arranged above and below the active block (27). And the sliding shaft (25) above the active block (27) is movably inserted into the fixed frame (26). Upper springs (23) and lower springs (24) are respectively sleeved on the two sliding shafts (25).

3. An aluminum liquid impurity removal device for waste aluminum recycling according to claim 2, characterized in that: The length of the lower spring (24) is longer than the sleeved sliding shaft (25). A weighing element (28) is fixedly arranged on the fixed frame (26). The bottom of the lower spring (24) abuts against the weighing element (28).

4. The aluminum liquid impurity removal device for waste aluminum recycling according to claim 2, characterized in that: The vibration assembly further includes a counterweight handle (22) fixedly arranged on the drive shaft (211). The cross section of the counterweight handle (22) is fan-shaped.

5. The aluminum liquid impurity removal device for waste aluminum recycling according to claim 1, wherein: The first scraper (31) is movably installed inside the impurity removal tank body (6) through a torsion spring. The scraper assembly further includes a coarse filter plate (33). The coarse filter plate (33) is fixedly arranged inside the impurity removal tank body (6). The coarse filter plate (33) and the second scraper (32) are rotationally connected through a torsion spring.

6. The aluminum liquid impurity removal device for waste aluminum recycling according to claim 5, wherein: The fine filtration mechanism includes a main fine filter plate (43) arranged below the filter drum (21). A scraping assembly is arranged on the main fine filter plate (43). The scraping assembly includes a sliding scraper (41). Driving handles (42) are arranged on both sides of the sliding scraper (41). The driving handles (42) extend to the outside of the impurity removal tank body (6) and are driven to scrape along the main fine filter plate (43) through a screw mechanism (5).

7. An aluminum liquid impurity removal device for waste aluminum recycling according to claim 6, characterized in that: A cleaning box (44) is provided on the side of the impurity removal tank body (6). The cleaning box (44) is communicated with the inside of the impurity removal tank body (6). The cleaning box (44) is arranged at the moving end of the sliding scraper (41). A side fine filter plate (442) is arranged inside the cleaning box (44). A return pipe (443) that connects the cleaning box (44) with the inside of the impurity removal tank body (6) is arranged below the side fine filter plate (442).

8. An impurity removal device for aluminum liquid in waste aluminum recycling according to claim 7, characterized in that: A box door (441) is provided on the cleaning box (44).

9. The aluminum liquid impurity removal device for waste aluminum recycling according to claim 5, characterized in that: Tooth-shaped blocks (711) are provided on the surfaces of the rolling roller (71) and the driven roller (72). The coarse filter plate (33) is inclined. The driven roller (72) is rotatably arranged at one end of the coarse filter plate (33) close to the box door (441).

10. An aluminum liquid impurity removal device for waste aluminum recycling according to claim 1, characterized in that: A particle detection component is provided on the injection interface (1). The particle detection component includes a bypass pipe (13) communicated with the injection interface (1). An ultrasonic device (12) is arranged in the bypass pipe (13). A reflection lining (14) is fixedly arranged inside the injection interface (1) along the signal transmission path of the ultrasonic device (12). The ultrasonic device (12) and the reflection lining (14) enable the signal to be transmitted along a V-shaped path.

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