A vortex current sorting device for slag waste aluminum regeneration raw material

Abstract

The utility model discloses a kind of furnace slag waste aluminium regeneration raw material eddy current sorting devices, it is related to industrial waste resource utilization field. Including base and shell, base is provided with hopper with material injection hole, first conveyor belt, magnetic system cylinder conveyor belt and metal collection conveyor belt are set in shell. Auxiliary smoothing assembly is set in shell, auxiliary smoothing assembly includes smoothing plate slidingly arranged in shell, the lateral of smoothing plate is fixed with for guiding too much raw material and is raised plate, the bottom end of smoothing plate is fixed with multiple convex blocks. Through the synergistic effect of smoothing plate and raised plate in auxiliary smoothing assembly, raw material layer can be scattered and shunt guide, ensure that raw material is contacted with the surface of magnetic system cylinder conveyor belt in single-layer uniform state. This design avoids the sorting blind area caused by raw material accumulation. And can be dynamically adjusted by the position of smoothing plate through the telescopic rod set, improve the sorting efficiency and identification accuracy of nonferrous metal and nonmetal.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste resource utilization, specifically an eddy current separation device for recycled aluminum slag raw materials. Background Technology

[0002] In the field of industrial waste resource utilization, slag aluminum waste, as a typical multi-metal composite waste, plays a significant role in saving bauxite resources and reducing energy consumption in metal smelting through its recycling treatment. Eddy current separation technology, with its non-contact separation characteristics, has become a key means of efficiently separating non-ferrous metals from mixed waste. Its core principle is to generate eddy currents in non-ferrous metals through alternating magnetic fields and then separate them by ejection. It is widely used in industries such as solid waste treatment and metallurgical recycling.

[0003] For example, a recycled aluminum raw material eddy current separation device (publication number: CN209317906U) disclosed on the Chinese Patent Network. This prior art involves stirring the material to be separated in a feeding device, then conveying it to an intermediate conveyor belt via a feeding conveyor belt. A drive motor drives the intermediate conveyor belt at a speed slightly faster than the feeding conveyor belt, matching the speed of the magnetic roller conveyor belt. After passing through the magnetic roller conveyor belt, non-metallic substances, being non-magnetic, fall directly onto the non-metallic collection device conveyor belt, while metallic substances, being magnetic, fly a greater distance away from the magnetic roller conveyor belt and fall onto the metal collection device conveyor belt ahead. This achieves the separation of non-metallic and metallic substances in the raw material. However, in practical applications, this prior art suffers from several drawbacks. Uneven feeding of the raw material on the surface of the magnetic roller conveyor belt can lead to localized accumulation, preventing the alternating magnetic field from fully penetrating deeper layers of the material and causing missed detection of non-ferrous metals. Furthermore, the fine powder remaining after separation tends to adhere to the conveyor belt surface, and long-term accumulation can alter the magnetic field distribution and contaminate subsequent materials. This results in low sorting efficiency, high maintenance frequency, and limited resource recovery rate of the existing technology, making it difficult to meet the needs of continuous industrial production. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an eddy current separation device for recycled aluminum slag raw materials, so as to solve the technical problems that the surface of the magnetic roller conveyor belt is prone to local accumulation due to uneven feeding and that residual fine powder after separation is easy to adhere to the surface of the conveyor belt.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an eddy current separation device for recycled aluminum slag, comprising a base and a shell, wherein a hopper with a feeding hole is provided on the base, a first conveyor belt for conveying the raw material is provided in the shell, a magnetic roller conveyor belt for separating the raw material is provided on the side of the first conveyor belt, and a metal collection conveyor belt is provided on the side of the magnetic roller conveyor belt.

[0006] The first conveyor belt, the magnetic roller conveyor belt, and the metal collecting conveyor belt are all equipped with mounting shafts that are connected to the external motor drive.

[0007] The housing is provided with an auxiliary leveling component to prevent the accumulation of raw materials on the magnetic roller conveyor belt. The auxiliary leveling component includes a leveling plate that is slidably disposed in the housing. A lifting plate for guiding excess raw materials is fixed to the side of the leveling plate. Multiple protrusions are fixed to the bottom of the leveling plate.

[0008] Preferably, the lifting plate is inclined, and the connection between the lifting plate and the straightening plate is arc-shaped.

[0009] Preferably, the auxiliary smoothing assembly further includes a mounting bracket disposed at the top of the housing, wherein a telescopic rod is disposed in the mounting bracket, and the output end of the telescopic rod is fixedly connected to the top of the smoothing plate.

[0010] Preferably, the housing is provided with an auxiliary cleaning component for cleaning residual material on the magnetic roller conveyor belt. The auxiliary cleaning component includes a brush roller that rotates in the housing and contacts the conveying surface of the magnetic roller conveyor belt.

[0011] The outer casing is provided with a third collection frame for collecting the cleaned raw materials, and a second baffle is fixed on one side of the third collection frame to prevent the cleaned raw materials from being scattered randomly.

[0012] Preferably, pulleys are fixed on both the mounting shaft and the outside of the brush roller of the magnetic roller conveyor belt, and a synchronous belt is externally connected to the two pulleys.

[0013] Preferably, a mounting base is fixed at the top of the hopper, and a drive motor is embedded in the mounting base. The output shaft of the drive motor is connected to crushing blades via a coupling, and the crushing blades are located inside the hopper.

[0014] An electric conveying device is provided on the side of the hopper to transport the raw materials in the hopper to the first conveyor belt.

[0015] Preferably, the outer casing is provided with a first collection frame for collecting non-metallic raw materials on the magnetic roller conveyor belt.

[0016] The outer casing is also provided with a second collection frame for collecting metal raw materials on the metal collection conveyor belt, and a first baffle is provided on one side of the second collection frame to block the metal raw materials entering it.

[0017] The present invention has the following main advantages: 1. This utility model utilizes the synergistic effect of the smoothing plate and the lifting plate in the auxiliary smoothing assembly to disperse and guide the raw material layer, ensuring that the raw material contacts the surface of the magnetic roller conveyor belt in a uniform single layer. This design avoids sorting blind spots caused by raw material accumulation. Furthermore, the position of the smoothing plate can be dynamically adjusted via a telescopic rod, allowing the alternating magnetic field to fully act on all raw materials, improving the sorting efficiency and identification accuracy of non-ferrous metals and non-metals.

[0018] 2. This utility model uses a synchronously belt-driven brush roller in the auxiliary cleaning component to continuously clean residual material from the surface of the magnetic roller conveyor belt. A second baffle then collects the cleaned residue into a third collection frame. This design prevents residual material from contaminating subsequent sorting processes, maintains the cleanliness of the conveyor belt surface, ensures the stability of the magnetic field, and thus guarantees continuous and efficient sorting. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the hopper in this utility model; Figure 4 This is a schematic diagram of the internal structure of the outer shell in this utility model; Figure 5 This is a schematic diagram of the disassembly structure of the auxiliary leveling component in this utility model; Figure 6 This is a schematic diagram of the disassembly structure of the auxiliary cleaning component in this utility model.

[0020] In the diagram: 1. Base; 2. Hopper; 21. Mounting base; 22. Drive motor; 23. Crushing blades; 24. Electric conveying equipment; 3. Casing; 31. First conveyor belt; 32. Magnetic roller conveyor belt; 321. First collection frame; 33. Metal collection conveyor belt; 331. Second collection frame; 332. First baffle; 4. Auxiliary leveling assembly; 41. Mounting frame; 42. Telescopic rod; 43. Leveling plate; 44. Tilt plate; 45. Protrusion block; 5. Auxiliary cleaning assembly; 51. Pulley; 52. Synchronous belt; 53. Brush roller; 54. Third collection frame; 55. Second baffle. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of this utility model will be described below based on its overall structure.

[0023] Example 1 An eddy current separation device for recycled aluminum slag raw materials, such as Figures 1-6 As shown, the system includes a base 1 and a housing 3. The base 1 has a hopper 2 with a feeding hole. The housing 3 contains a first conveyor belt 31 for conveying raw materials. A magnetic roller conveyor belt 32 for sorting raw materials is located beside the first conveyor belt 31. A metal collection conveyor belt 33 is located beside the magnetic roller conveyor belt 32. Through the coordinated operation of these three conveyor belts, the entire process of raw material conveying, sorting, and collection is automated, reducing the need for manual intervention.

[0024] The first conveyor belt 31, the magnetic roller conveyor belt 32, and the metal collecting conveyor belt 33 are all equipped with mounting shafts that are connected to external motor drives. The independently driven mounting shaft design allows each conveyor belt to have its speed adjusted individually, adapting to the dynamic needs of different processing stages.

[0025] The outer casing 3 is equipped with an auxiliary leveling component 4 to prevent material accumulation on the magnetic roller conveyor belt 32. The auxiliary leveling component 4 includes a leveling plate 43 slidably disposed in the outer casing 3, a lifting plate 44 fixed to the side of the leveling plate 43 for guiding excess material, and multiple protrusions 45 fixed to the bottom end of the leveling plate 43. The cooperation of the leveling plate 43 and the lifting plate 44 disperses and guides the accumulated material, ensuring uniform distribution in a single layer and improving the sorting accuracy of the magnetic roller.

[0026] Furthermore, the lifting plate 44 is inclined, and the connection between the lifting plate 44 and the straightening plate 43 is arc-shaped. The arc transition design reduces the risk of raw material jamming, and the inclined structure utilizes gravity to assist in diversion, further optimizing the uniformity of raw material distribution.

[0027] Furthermore, the auxiliary leveling assembly 4 also includes a mounting bracket 41 located at the top of the housing 3. A telescopic rod 42 is installed within the mounting bracket 41, and the output end of the telescopic rod 42 is fixedly connected to the top of the leveling plate 43. The telescopic rod 42 drives the leveling plate 43 to adjust its height, adapting to the processing needs of raw materials with different particle sizes and enhancing the equipment's versatility.

[0028] Furthermore, the outer casing 3 is equipped with an auxiliary cleaning component 5 for cleaning residual material on the magnetic roller conveyor belt 32. The auxiliary cleaning component 5 includes a brush roller 53 rotating in the outer casing 3, which contacts the conveying surface of the magnetic roller conveyor belt 32. The brush roller 53 directly contacts the surface of the magnetic roller conveyor belt 32 to remove adhering residue in real time, avoiding residue from affecting the subsequent sorting effect.

[0029] The outer casing 3 is equipped with a third collection frame 54 for collecting the cleaned materials. A second baffle 55 is fixed to one side of the third collection frame 54 to prevent the cleaned materials from scattering randomly. The second baffle 55 limits the path of residual material splashing, ensures that the cleaned materials are collected in a concentrated manner, and reduces the risk of environmental pollution.

[0030] Furthermore, pulleys 51 are fixed on both the mounting shaft of the magnetic roller conveyor belt 32 and the outside of the brush roller 53, and a synchronous belt 52 is externally connected to the two pulleys 51. By linking the brush roller 53 and the magnetic roller conveyor belt 32 through the synchronous belt 52, the cleaning action and the sorting process are synchronized, reducing additional power loss.

[0031] Example 2 Please see Figures 3-4 Furthermore, in conjunction with Embodiment 1, a mounting base 21 is fixed to the top of the hopper 2, and a drive motor 22 is embedded in the mounting base 21. The output shaft of the drive motor 22 is connected to a crushing blade 23 via a coupling, and the crushing blade 23 is located inside the hopper 2. The crushing blade 23 pre-processes large pieces of raw material, reduces the subsequent sorting load, and improves the overall processing efficiency.

[0032] An electric conveying device 24 is installed on the side of the hopper 2 to transport the raw materials in the hopper 2 to the first conveyor belt 31. The electric conveying device 24 precisely controls the feeding amount to prevent the hopper 2 from clogging and maintain the stable load of the first conveyor belt 31.

[0033] Furthermore, the outer casing 3 is provided with a first collection frame 321 for collecting non-metallic raw materials on the magnetic roller conveyor belt 32. The first collection frame 321 realizes the directional separation of non-metals and metals, reducing secondary sorting costs.

[0034] The outer casing 3 also includes a second collection frame 331 for collecting metal materials from the metal collection conveyor belt 33, and a first baffle 332 is provided on one side of the second collection frame 331 to block the metal materials entering it. The first baffle 332 prevents the metal materials from rebounding and overflowing, ensuring that high-value metals are completely recycled and improving resource utilization.

[0035] The working process of the eddy current separation device for recycled aluminum slag is as follows: The operator feeds the slag waste aluminum raw material to be processed into the hopper 2 through the feeding hole, and starts the drive motor 22 to drive the crushing blades 23 to crush the raw material. The crushed raw material is evenly conveyed to the surface of the first conveyor belt 31 by the electric conveying device 24. At this time, the first conveyor belt 31 starts to run under the drive of the external motor, conveying the raw material towards the magnetic roller conveyor belt 32.

[0036] When the raw material reaches above the magnetic roller conveyor belt 32, the auxiliary leveling component 4 starts to work: the telescopic rod 42 drives the leveling plate 43 to press down to an appropriate height, the protrusion 45 at the bottom of the leveling plate 43 disperses the accumulated raw material layer, and at the same time, the inclined lifting plate 44 diverts and guides the excess raw material through the arc-shaped connection to ensure that the raw material contacts the surface of the magnetic roller conveyor belt 32 in a single layer uniform state.

[0037] When the magnetic roller conveyor belt 32 rotates under the drive of an external motor, its internal magnetic system generates an alternating magnetic field, causing eddy currents in non-ferrous metals such as aluminum in the raw materials. Under the influence of the magnetic field, these metals detach from the conveyor belt surface and splash onto the metal collection conveyor belt 33 area. Non-metallic impurities, lacking the eddy current effect, continue to move with the magnetic roller conveyor belt 32 and eventually fall into the first collection frame 321, completing the initial sorting. The metal collection conveyor belt 33 transports the non-ferrous metals to the second collection frame 331, with a first baffle 332 on its side preventing the metal raw materials from scattering.

[0038] During the sorting process, the magnetic roller conveyor belt 32, mounted on a shaft, drives the brush roller 53 to rotate synchronously via pulley 51 and synchronous belt 52. The bristles on the surface of the brush roller 53 continuously clean the fine material residue remaining on the conveyor belt surface. The cleaned residual material is guided by the second baffle 55 and falls into the third collection frame 54 for secondary cleaning. The entire sorting process achieves efficient separation and automatic collection of metals and non-metals in slag waste aluminum raw materials through the continuous operation of each conveyor belt and the coordinated action of auxiliary components.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An eddy current separation device for recycled aluminum slag raw materials, comprising a base (1) and a shell (3), wherein a hopper (2) with a feeding hole is provided on the base (1), characterized in that: The outer casing (3) is provided with a first conveyor belt (31) for conveying raw materials, and a magnetic roller conveyor belt (32) for sorting raw materials is provided on the side of the first conveyor belt (31), and a metal collection conveyor belt (33) is provided on the side of the magnetic roller conveyor belt (32). The first conveyor belt (31), the magnetic roller conveyor belt (32) and the metal collection conveyor belt (33) are all provided with mounting shafts that are connected to the external motor drive; The outer casing (3) is provided with an auxiliary leveling assembly (4) to prevent the accumulation of raw materials on the magnetic roller conveyor belt (32). The auxiliary leveling assembly (4) includes a leveling plate (43) slidably disposed in the outer casing (3). A lifting plate (44) for guiding excessive raw materials is fixed to the side of the leveling plate (43). A plurality of protrusions (45) are fixed to the bottom end of the leveling plate (43).

2. The eddy current separation device for recycled aluminum slag raw materials according to claim 1, characterized in that: The lifting plate (44) is inclined, and the connection between the lifting plate (44) and the straightening plate (43) is arc-shaped.

3. The eddy current separation device for recycled aluminum slag raw materials according to claim 1, characterized in that: The auxiliary smoothing component (4) also includes a mounting bracket (41) set at the top of the outer shell (3), and a telescopic rod (42) is provided in the mounting bracket (41). The output end of the telescopic rod (42) is fixedly connected to the top of the smoothing plate (43).

4. The eddy current separation device for recycled aluminum slag raw materials according to claim 1, characterized in that: The outer casing (3) is provided with an auxiliary cleaning component (5) for cleaning residual materials on the magnetic roller conveyor belt (32). The auxiliary cleaning component (5) includes a brush roller (53) rotating in the outer casing (3) and the brush roller (53) is in contact with the conveying surface of the magnetic roller conveyor belt (32). The outer shell (3) is provided with a third collection frame (54) for collecting the cleaned raw materials, and a second baffle (55) is fixed on one side of the third collection frame (54) to prevent the cleaned raw materials from being scattered randomly.

5. The eddy current separation device for recycled aluminum slag raw materials according to claim 4, characterized in that: The magnetic roller conveyor belt (32) is mounted on the shaft and the brush roller (53) is fixed with pulleys (51), and the two pulleys (51) are connected to the external drive by a synchronous belt (52).

6. The eddy current separation device for recycled aluminum slag raw materials according to claim 1, characterized in that: The top of the hopper (2) is fixed with a mounting base (21), and a drive motor (22) is embedded in the mounting base (21). The output shaft of the drive motor (22) is connected to a crushing blade (23) through a coupling. The crushing blade (23) is located inside the hopper (2). An electric conveying device (24) is provided on the side of the hopper (2) to transport the raw materials in the hopper (2) to the first conveyor belt (31).

7. The eddy current separation device for recycled aluminum slag raw materials according to claim 1, characterized in that: The outer shell (3) is provided with a first collection frame (321) for collecting non-metallic raw materials on the magnetic roller conveyor belt (32). The outer shell (3) is also provided with a second collection frame (331) for collecting metal raw materials on the metal collection conveyor belt (33), and a first baffle (332) is provided on one side of the second collection frame (331) to block the metal raw materials entering it.

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