A device for removing impurities from molten aluminum for recycling of scrap aluminum

Abstract

The application relates to a molten aluminum impurity removing device for waste aluminum recovery and relates to the technical field of waste aluminum recovery. The device comprises an impurity removing tank body, a material injection interface, a coarse filtering mechanism and a fine filtering mechanism. The coarse filtering mechanism realizes effective removal of large impurities in the molten aluminum through a rotatable filtering roller, a vibration assembly and a scraper assembly, and the fine filtering mechanism realizes further precision filtering through cooperation of a main fine filter plate and a sliding scraper. Meanwhile, the device is provided with a slag outlet, a rolling roller, a driven roller and a cleaning box and the like, so that the impurities can be completely removed and the device is convenient to maintain. The application improves the impurity removing efficiency and precision of the molten aluminum, significantly reduces the impurity residual rate and optimizes the molten aluminum quality in the waste aluminum recovery process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of waste aluminum recycling, in particular to an aluminum liquid impurity removal device for waste aluminum recycling. BACKGROUND

[0002] In the waste aluminum recycling process, the aluminum liquid impurity removal device is one of the key equipment for ensuring 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. Efficient impurity removal technology not only improves the purity of recycled aluminum, but also significantly reduces production costs and improves resource utilization. Under the dual drivers of environmental protection and economy, the research and application of aluminum liquid impurity removal devices for waste aluminum recycling have attracted widespread attention.

[0003] In the prior art, to solve the problem of impurities in the aluminum liquid, the commonly used methods include fixed filter plate filtration, vibrating sieve separation and regular cleaning of the scraper, etc. The fixed filter plate realizes impurity interception by arranging multiple filter screens on the path of the aluminum liquid; the vibrating sieve separation separates the impurities in the aluminum liquid from the liquid through mechanical vibration; the regular cleaning of the scraper removes the impurities by the scraper installed on the surface of the filter plate when the impurities accumulate to a certain extent. In addition, some technologies combine the above-mentioned methods, such as setting a vibrating mechanism or an auxiliary scraper below the filter plate to enhance the filtering effect.

[0004] However, these prior arts have a common problem: when there are many impurities or large block-shaped impurities in the aluminum liquid, the filter plate is easily clogged by quickly accumulating impurities, thereby significantly reducing the filtering efficiency. Especially in the continuous operation process, the filtering speed cannot be kept consistent, affecting the overall production efficiency. Therefore, how to realize efficient and continuous aluminum liquid impurity removal has become a technical problem to be solved. SUMMARY

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

[0006] The application provides an aluminum liquid impurity removal device for waste aluminum recycling, which adopts the following technical scheme:

[0007] An aluminum liquid impurity removal device for waste aluminum recycling, comprising an impurity removal tank body, a material injection interface is arranged at the top of the impurity removal tank body, a coarse filter mechanism and a fine filter mechanism are arranged in the impurity removal tank body, the coarse filter mechanism comprises a filter drum capable of rotating in the impurity removal process, filter holes are arranged on the filter drum, the coarse filter mechanism further comprises a vibrating assembly for making the filter drum shake up and down in the filtering process, the coarse filter mechanism further comprises a scraper assembly, the scraper assembly comprises a first scraper and a second scraper in contact with the surface of the filter drum, a slag outlet is arranged on the impurity removal tank body, and a rolling roller and a driven roller are arranged at the slag outlet.

[0008] By adopting the technical scheme, the aluminum liquid impurity removal device for waste aluminum recovery can effectively solve the problems of easy clogging of the filter plate and low filtering efficiency in the prior art. The filtering roller can preliminarily filter the impurities in the aluminum liquid during rotation, and the filtering holes thereon can intercept large block impurities, and the rotary motion can help reduce the accumulation of impurities. The vibration assembly makes the filtering roller vibrate up and down during the filtering process, further avoids the accumulation of impurities on the surface of the filtering roller, improves the filtering efficiency and ensures the continuity of the filtering process. The first and second scrapers in the scraper assembly are in contact with the surface of the filtering roller, which can timely scrape off the impurities adhered to the surface of the filtering roller during the rotation of the filtering roller, prevent clogging and keep the filtering speed stable. The crushing roller and the driven roller arranged at the slag outlet can perform extrusion treatment on the scraped impurities to reduce the volume, facilitating the subsequent cleaning and processing process.

[0009] Preferably, the vibration assembly comprises a fixed frame, an active block movably arranged in the fixed frame, and a drive shaft of the filtering roller rotatably arranged on the active block. An upper slide shaft and a lower slide shaft are fixedly arranged on the active block, and the upper slide shaft movably inserted in the fixed frame. An upper spring and a lower spring are respectively sleeved on the two slide shafts.

[0010] By adopting the technical scheme, the fixed frame of the vibration assembly provides a stable support structure for the active block, so that the drive shaft of the filtering roller can rotate on the active block. The slide shafts arranged on the active block and the upper spring and the lower spring respectively sleeved on the slide shafts can make the filtering roller vibrate up and down during rotation. Such vibration helps to prevent impurities from accumulating on the surface of the filtering roller, thereby reducing the possibility of clogging of the filter plate and improving the filtering efficiency. At the same time, the elastic effect of the spring can buffer the impact force in the filtering process, prolonging the service life of the equipment.

[0011] Preferably, the length of the lower spring is longer than the sleeved slide shaft, and a weighing element is fixedly arranged on the fixed frame, and the bottom of the lower spring abuts against the weighing element.

[0012] By adopting the technical scheme, the length of the lower spring is longer than the sleeved slide shaft, which can ensure that the active block has sufficient travel range when vibrating up and down, thereby enhancing the vibration effect of the filtering roller. 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, thereby reflecting the degree of impurity accumulation on the filtering roller, providing data support for automatic control, and improving the intelligent level and filtering efficiency of the impurity removal device.

[0013] Preferably, the vibration assembly further comprises a counterweight handle fixedly arranged on the drive shaft, and the counterweight handle has a fan-shaped cross section.

[0014] By adopting the above technical scheme, during the rotation of the filtering roller, the counterweight handle can generate unbalanced force during rotation due to its fan-shaped cross-section design, thereby further enhancing the vibration effect of the filtering roller. Such vibration can effectively prevent impurities from accumulating on the surface of the filtering roller, ensuring the continuity and efficiency of the filtering process.

[0015] Preferably, the first scraper is movably installed in the impurity removal tank body by a torsion spring, and the scraper assembly further comprises a coarse filter plate fixedly arranged in the impurity removal tank body, and the coarse filter plate is rotatably connected to the second scraper by a torsion spring.

[0016] By adopting the above technical scheme, the first scraper is movably installed in the impurity removal tank body by a torsion spring, so that the first scraper can flexibly adjust the angle during the filtering process, effectively avoiding the blockage problem caused by impurity accumulation, and improving the filtering efficiency.

[0017] Preferably, the fine filtering mechanism comprises a main fine filter plate arranged below the filtering roller, and a scraping assembly is arranged on the main fine filter plate, wherein the scraping assembly comprises a sliding scraper, and drive handles are arranged on both sides of the sliding scraper, the drive handles extend to the outside of the impurity removal tank body and are driven to scrape along the main fine filter plate by a lead screw mechanism.

[0018] By adopting the above technical scheme, the main fine filter plate can further filter the aluminum liquid filtered by the coarse filtering mechanism, effectively removing residual fine impurities. The sliding scraper is driven by the lead 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 filter hole from being blocked, and thus maintaining a high filtering efficiency and a stable filtering speed. Compared with the traditional fixed filter plate, this design realizes a continuous and uninterrupted filtering process, and is particularly suitable for aluminum liquid treatment scenarios with more impurities, significantly improving the working performance of the overall impurity removal device.

[0019] Preferably, a cleaning box is arranged on the side of the impurity removal tank body, the cleaning box is in communication with the inside of the impurity removal tank body, the cleaning box is arranged at the movable end of the sliding scraper, a side fine filter plate is arranged in the cleaning box, and a backflow pipe is arranged below the side fine filter plate to connect the cleaning box and the inside of the impurity removal tank body.

[0020] By adopting the above technical scheme, the arrangement of the cleaning box enables the sliding scraper to guide the scraped impurities into the cleaning box for temporary storage after completing the scraping of the main fine filter plate, effectively preventing the impurities from being mixed into the aluminum liquid again. The addition of the side fine filter plate further filters the mixture introduced into the cleaning box, ensuring that the impurities are effectively separated. Meanwhile, the design of the backflow pipe enables the aluminum liquid filtered by the side fine filter plate to flow back into the impurity removal tank body, improving the recycling rate of the aluminum liquid. This design of the cleaning box significantly improves the overall filtering efficiency and continuous operation capacity of the impurity removal device, ensuring the stability of the filtering process.

[0021] Preferably, the cleaning box is provided with a box door.

[0022] By adopting the above technical scheme, the box door provided on the cleaning box can facilitate the operator to regularly clean and maintain the inside of the cleaning box, so that the fine filter plate and the return pipe in the cleaning box are prevented from being blocked due to impurity accumulation, thereby ensuring the long-term stable operation and filtering effect of the entire impurity removal device.

[0023] Preferably, the surface of the rolling roller and the driven roller is provided with a tooth block, and the coarse filter plate is arranged obliquely, and the driven roller is rotatably arranged on the coarse filter plate at the end close to the box door.

[0024] By adopting the above technical scheme, the tooth blocks provided on the surfaces of the rolling roller and the driven roller can effectively increase the grabbing force on the impurities, and in the case that the coarse filter plate is arranged obliquely, the driven roller is rotatably arranged on the coarse filter plate at the end close to the box door, so that the impurities can be better squeezed and transported by the rolling roller and the driven roller after being scraped to the coarse filter plate by the scraper assembly, thereby preventing the impurities from being incompletely accumulated or sliding off, and improving the efficiency and reliability of impurity discharge.

[0025] Preferably, the injection interface is provided with a particle detection assembly, the particle detection assembly comprises a bypass pipe in communication with the injection interface, an ultrasonic wave device is arranged in the bypass pipe, a reflective lining is fixedly arranged inside the injection interface along the signal transmission path of the ultrasonic wave device, and the ultrasonic wave device and the reflective lining enable the signal to be transmitted in a V-shaped path.

[0026] By adopting the above technical scheme, the ultrasonic wave device in the bypass pipe cooperates with the reflective lining inside the 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 aluminum liquid. This design enables the impurity condition to be judged before the aluminum liquid enters the impurity removal tank, thereby providing data support for the subsequent filtering process, and improving the adaptability and filtering efficiency of the entire impurity removal device.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The filtering roller can realize up-and-down shaking through the shaking assembly during rotation, which can effectively prevent impurities from being accumulated and blocked at the filtering holes, thereby greatly improving the filtering efficiency and maintaining the stability of the filtering speed.

[0029] 2. The first scraper and the second scraper of the scraper assembly are in contact with the surface of the filtering roller, which can remove the impurities on the surface of the filtering roller in real time, avoid the accumulation of impurities affecting the filtering performance, and realize continuous and uninterrupted filtering operation.

[0030] 3、The rolling roller and driven roller arranged at the tapping opening can preliminarily crush the discharged impurities, facilitate the subsequent cleaning and treatment of the impurities, and reduce the risk of blockage of the entire impurity removal device by large impurities. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 is a perspective view of the embodiment of the present application;

[0032] Fig. 2 is a perspective sectional view of the internal structure of the present application;

[0033] Fig. 3 is a perspective sectional view of the specific structure of the vibration assembly.

[0034] BRIEF DESCRIPTION OF DRAWINGS: 1, material injection interface; 11, ultrasonic attenuation sensor; 12, ultrasonic wave device; 13, bypass pipe; 14, reflection pad; 21, filter roller; 211, drive shaft; 22, counterweight handle; 23, upper spring; 24, lower spring; 25, sliding shaft; 26, fixed frame; 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, bypass fine filter plate; 443, return pipe; 6, impurity removal tank body; 5, lead screw mechanism; 61, tapping opening; 71, rolling roller; 711, toothed block; 72, driven roller. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying Figs. 1-3 The present application will be further described in detail.

[0036] In the description of the application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] The embodiment of the present application discloses an aluminum liquid impurity removal device for waste aluminum recycling, referring to Figs. 1 to 3, including a degassing tank 6, the top of the degassing tank 6 is provided with a feeding interface 1, the degassing tank 6 is provided with a coarse filter mechanism and a fine filter mechanism, the coarse filter mechanism includes a filter drum 21 capable of rotating during the degassing process, specifically, the filter drum 21 includes a drum body and a driving shaft 211. The drum body is made of stainless steel, and the outer surface is uniformly provided with filter holes. The coarse filter mechanism further includes a vibration assembly for making the filter drum 21 vibrate up and down during the filtering process, and the coarse filter mechanism further includes a scraper assembly, the scraper assembly includes a first scraper 31 and a second scraper 32 in contact with the surface of the filter drum 21, and the degassing tank 6 is also provided with a slag outlet 61, and the slag outlet 61 is provided with a rolling roller 71 and a driven roller 72. Through the synergistic effect of rotation, vibration and scraping, the filter drum 21 is effectively prevented from being blocked, and the filtering efficiency can be significantly improved.

[0038] The vibration assembly includes a fixed frame 26, the fixed frame 26 is arranged outside the degassing tank 6, the fixed frame 26 is movably provided with a movable block 27, the driving shaft 211 of the filter drum 21 is rotatably arranged on the movable block 27, and the movable block 27 is fixedly provided with a slide shaft 25 above and below, and the slide shaft 25 above the movable block 27 is movably inserted into the fixed frame 26, and the slide shaft 25 is movably inserted into the fixed frame 26. The upper spring 23 and the lower spring 24 are respectively sleeved on the two slide shafts 25. The length of the lower spring 24 is longer than the slide shaft 25 sleeved thereon, the fixed frame 26 is fixedly provided with a weighing element 28, and 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 driving shaft 211, and the counterweight handle 22 has a fan-shaped cross section. The driving shaft 211 is connected with an external driving device through a universal joint, when the driving shaft 211 drives the filter drum 21 to roll, the arrangement of the counterweight handle 22 will make the driving shaft 211 swing up and down due to the inertial influence of the offset during rotation. The arrangement of the movable block 27 enables the driving shaft 211 to compress the upper spring 23 and the lower spring 24 respectively when swinging, and the arrangement of the two slide shafts 25 guides the up-and-down swinging of the driving shaft 211. The bottom of the lower spring 24 abuts against the weighing element 28, which is used for monitoring the weight of the impurities attached to the filter drum 21 in real time. This design not only effectively reduces the vibration amplitude of the filter drum 21, but also adjusts the vibration frequency and amplitude by adjusting the rotating speed of the filter drum 21 according to the weight of the impurities, which can effectively remove the impurities attached to the filter drum 21.

[0039] The first scraper 31 is movably installed in the impurity removal tank body 6 by a torsion spring. The scraper assembly further includes a coarse filter plate 33 fixedly arranged in the impurity removal tank body 6. The coarse filter plate 33 is rotatably connected to the second scraper 32 by 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, the first scraper 31 and the second scraper 32 need to be always in close contact with the surface of the filter drum 21. Therefore, the torsion spring is arranged to always press the first scraper 31 and the second scraper 32 against the surface of the filter drum 21 by using elasticity, so as to realize scraping of impurities on the filter drum 21. The first scraper 31, the second scraper 32 and the coarse filter plate 33 are all arranged obliquely. The second scraper 32 is rotatably connected to the coarse filter plate 33 by a torsion spring. The second scraper 32 scrapes the impurities on the surface of the filter drum 21 and makes the impurities roll along the surface of the second scraper 32 towards the coarse filter plate 33. In order to improve the coarse filtering effect, the same filtering holes as the coarse filter plate 33 are arranged on the second scraper 32, so that the impurities are filtered again while rolling along the second scraper 32 towards the coarse filter plate 33. The surfaces of the rolling roller 71 and the driven roller 72 are both provided with tooth blocks 711. The driven roller 72 is rotatably arranged on the coarse filter plate 33 near one end of 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 tooth blocks 711 drive the driven roller 72 to rotate synchronously. When the impurities pass through the rolling roller 71, the impurities are crushed by the rolling roller 71 and the driven roller 72. At the same time, the aluminum liquid carried by the impurities is squeezed out during the crushing process.

[0040] The fine filtering mechanism includes a main fine filter plate 43 arranged below the filter drum 21. The main fine filter plate 43 is provided with a scraping assembly. 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 by the lead screw mechanism 5. The aluminum liquid filtered by the coarse filter plate falls under the action of gravity. At this time, the impurities in the aluminum liquid filtered by the coarse filter plate are less, and the impurities accumulated on the main fine filter plate 43 are relatively slow. The sliding scraper 41 is driven by the lead screw mechanism 5 to scrape the main fine filter plate 43 at regular intervals, so as to avoid the accumulation of impurities and reduce the filtering efficiency of the main fine filter plate 43.

[0041] The cleaning box 44 is arranged on the side of the impurity removal tank 6 and communicates with the inside of the impurity removal tank 6. The cleaning box 44 is arranged at the movable end of the sliding scraper 41. The sliding scraper 41 pushes the impurities into the cleaning box 44. The cleaning box 44 has a certain volume and can store a certain amount of impurities. The cleaning box 44 is provided with a filter plate 442. The impurities are evenly arranged on the filter plate 442. The cleaning box 44 is provided with a box door 441. The impurities on the filter plate 442 can be cleaned regularly. The impurities on the filter plate 442 slowly settle in the aluminum liquid by gravity. The filter plate 442 is provided with a return pipe 443. The return pipe 443 connects the cleaning box 44 and the inside of the impurity removal tank 6. The aluminum liquid filtered by the filter plate 442 is introduced into the impurity removal tank 6 through the pipe opening arranged at the bottom of the impurity removal tank 6.

[0042] The injection interface 1 is provided with a particle detection assembly. The particle detection assembly comprises a bypass pipe 13 connected with the injection interface 1. An ultrasonic wave device 12 is arranged in the bypass pipe 13. The ultrasonic wave device 12 comprises an ultrasonic wave transmitter and an ultrasonic wave receiver. The concentration and size of the particles are calculated by measuring the attenuation degree of the ultrasonic wave in the medium and combining the change of the sound velocity. A reflective lining 14 is fixedly arranged along the signal transmission path of the ultrasonic wave device 12 in the injection interface 1. The ultrasonic wave device 12 and the reflective lining 14 make the signal transmit in a V-shaped path. The particle detection assembly provides front-end signal support for the rotating speed of the filtering drum 21, so that the device can automatically control the filtering efficiency through the program.

[0043] The implementation principle of the embodiment of the application is as follows:

[0044] The data collection ultrasonic wave device 12 is fixedly arranged at one end of the bypass pipe 13 and transmits an ultrasonic wave signal with a frequency of 20 kHz to 40 kHz. The reflective lining 14 is made of metal material and the surface is polished to ensure clear signal reflection. The ultrasonic wave signal transmitted in the V-shaped path can effectively detect the particle concentration in the aluminum liquid. In addition, a flow dividing valve is arranged at the outlet of the bypass pipe 13 to control the flow of the aluminum liquid and prevent the filtering drum 21 from being overloaded due to excessive flow. The particle detection assembly can monitor the particle concentration in the aluminum liquid in real time and provide accurate data support for the subsequent filtering process. The weighing element 28 can be used as a rear-end signal feedback in the coarse filtering process and cooperate with the ultrasonic wave signal to correct the data and monitor the filtering process in real time, so that the situation of a large amount of impurities increasing instantaneously can be prevented and the impurities can be effectively prevented from being blocked.

[0045] After the molten aluminum enters the impurity removal tank 6, it is first filtered by the coarse filter mechanism. During the rotation of the filter roller 21, the up-and-down shaking generated by the shaking assembly effectively prevents the accumulation of impurities, and the scraper assembly timely removes the impurities on the surface of the filter roller. The filter roller 21 rotates towards the direction of the second scraper 32. At the moment when the molten aluminum comes into contact with the filter roller 21, it will be scattered by the rotation of the filter roller 21, which can break up the impurities gathered in the molten aluminum. The molten aluminum will be filtered by the coarse filter holes on the upper and lower surfaces of the filter roller 21 under the action of gravity. Part of the impurities will be thrown by the filter roller 21 to the second scraper 32, and part of the impurities will be scraped off by the second scraper 32. The first scraper 31 is a supplementary cleaning for the second scraper 32, which will hang and drop the remaining impurities on the main fine filter plate 43. The impurities scraped by the second scraper 32 will be filtered again by the second scraper 32 and the coarse filter plate 33, then pass through the rolling mill 71, and then the residual molten aluminum will be squeezed out by the rolling mill 71 and broken, and the broken impurities will be discharged through the slag outlet 61.

[0046] After the coarse filtration, the molten aluminum flows into the fine filter mechanism, and is finely filtered by the main fine filter plate 43. The sliding scraper 41 reciprocates along the surface of the main fine filter plate 43, removes the fine particle impurities attached to the surface and pushes them into the cleaning box 44. The impurities are evenly laid on the side fine filter plate 442, the molten aluminum is naturally deposited by gravity, re-introduced into the impurity removal tank 6 through the return pipe 443, and flows out through the pipe opening at the bottom of the impurity removal tank 6 together with the molten aluminum filtered by the main fine filter plate 43, finally realizing the filtration of the molten aluminum.

[0047] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for removing impurities from molten aluminum for recycling of scrap aluminum, characterized by: The device comprises a dedusting tank (6), a feeding interface (1) is arranged on the top of the dedusting tank (6), a coarse filter mechanism and a fine filter mechanism are arranged in the dedusting tank (6), the coarse filter mechanism comprises a filter roller (21) capable of rotating during the dedusting process, filter holes are arranged on the filter roller (21), the coarse filter mechanism further comprises a vibrating assembly for enabling the filter roller (21) to swing up and down during the filtering process, and the coarse filter mechanism further comprises a scraper assembly, the scraper assembly comprises a first scraper (31) and a second scraper (32) in contact with the surface of the filter roller (21), a slag outlet (61) is arranged on the dedusting tank (6), and a rolling roller (71) and a driven roller (72) are arranged at the slag outlet (61).

2. The device for removing impurities from molten aluminum for recycling scrap aluminum according to claim 1, characterized in that: The vibrating assembly comprises a fixed frame (26), a movable block (27) is movably arranged in the fixed frame (26), a driving shaft (211) of the filter roller (21) is rotatably arranged on the movable block (27), an upper slide shaft (25) and a lower slide shaft (25) are fixedly arranged on the movable block (27), the slide shaft (25) above the movable block (27) is movably inserted into the fixed frame (26), and the upper slide shaft (25) and the lower slide shaft (25) are respectively sleeved with an upper spring (23) and a lower spring (24).

3. The device for removing impurities from molten aluminum for recycling of scrap aluminum according to claim 2, characterized in that: The vibrating assembly further comprises a counterweight handle (22) fixedly arranged on the driving shaft (211), the cross section of the counterweight handle (22) is fan-shaped, the counterweight handle (22) is arranged inside the filter roller (21), the length of the lower spring (24) is longer than that of the sleeved slide shaft (25), the first scraper (31) is movably arranged in the dedusting tank (6) through a torsion spring, the scraper assembly further comprises a coarse filter plate (33) fixedly arranged in the dedusting tank (6), and the coarse filter plate (33) is rotatably connected with the second scraper (32) through a torsion spring.

4. The device for removing impurities from molten aluminum for recycling of scrap aluminum according to claim 3, characterized in that: The fine filter mechanism comprises a main fine filter plate (43) arranged below the filter roller (21), the surfaces of the rolling roller (71) and the driven roller (72) are respectively provided with tooth blocks (711), the coarse filter plate (33) is arranged obliquely, and the driven roller (72) is rotatably arranged on the coarse filter plate (33) at one end close to a box door (441).

5. The device for removing impurities from molten aluminum for recycling of scrap aluminum according to claim 4, characterized in that: A weighing element (28) is fixedly arranged on the fixed frame (26), and the bottom of the lower spring (24) abuts against the weighing element (28). The main fine filter plate (43) is provided with a scraping assembly, the scraping assembly comprises a sliding scraper (41), driving handles (42) are arranged on the two sides of the sliding scraper (41), the driving handles (42) extend to the outside of the dedusting tank (6) and are driven to scrape along the main fine filter plate (43) through a lead screw mechanism (5). A cleaning box (44) is arranged on the side of the dedusting tank (6), the cleaning box (44) is communicated with the inside of the dedusting tank (6), the cleaning box (44) is arranged at the movable end of the sliding scraper (41), a side fine filter plate (442) is arranged in the cleaning box (44), and a backflow pipe (443) for connecting the cleaning box (44) with the inside of the dedusting tank (6) is arranged below the side fine filter plate (442). A box door (441) is arranged on the cleaning box (44).

6. The device for removing impurities from molten aluminum for recycling of scrap aluminum according to claim 3, characterized in that: The injection interface (1) is provided with a particle detection assembly, which comprises a bypass pipe (13) in communication with the injection interface (1), an ultrasonic wave device (12) is arranged in the bypass pipe (13), a reflection lining (14) is fixedly arranged along the signal transmission path of the ultrasonic wave device (12) in the injection interface (1), and the ultrasonic wave device (12) and the reflection lining (14) make the signal transmit in a V-shaped path.

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