A magnetic separation device for recycling manganese-iron ore slag

Abstract

This utility model relates to a magnetic separation device for recovering manganese-iron ore slag, belonging to the field of manganese-iron ore slag recovery technology. It mainly includes a conveying mechanism, a magnetic separation component, a lifting mechanism, and a weak magnetic enhancement component. The conveying mechanism is used for material transport; the magnetic separation component forms a magnetic field coverage area through a main magnet and an auxiliary magnet; the weak magnetic enhancement component is located below the conveyor belt and enhances the adsorption capacity for weakly magnetic substances through an electromagnetic coil group and a magnetic guide plate group; the lifting mechanism adjusts the height of the weak magnetic enhancement component. This application can significantly improve the capture capacity of weakly magnetic substances, reduce the loss of valuable metals, adapt to various material characteristics, and improve resource recovery efficiency, possessing high practicality and promotional value.

Description

Technical Field

[0001] This utility model belongs to the field of manganese-iron ore slag recycling technology, specifically relating to a magnetic separation device for manganese-iron ore slag recycling. Background Technology

[0002] For the recovery of manganese-iron ore slag, although it contains ferromagnetic materials (such as magnetite), it also contains a large amount of weakly magnetic or paramagnetic materials (such as manganese-iron ore, hematite, silicates, etc.). Traditional permanent magnet rollers or drum magnetic separators have limited ability to capture weakly magnetic materials, causing these valuable metals to be lost with the tailings, resulting in resource waste and low recovery efficiency. At the same time, a single magnetic separation method cannot meet the separation requirements of multiple magnetic materials in complex ore slag, affecting the overall recovery effect. Utility Model Content

[0003] To overcome the problem of effectively separating weakly magnetic or paramagnetic substances from manganese-iron ore slag, this invention provides a magnetic separation device for manganese-iron ore slag recycling. By optimizing the layout of the magnetic separation components and introducing weak magnetic enhancement components, combined with a conveying mechanism and a lifting mechanism, this device can significantly improve the capture capacity of weakly magnetic substances and reduce the loss of valuable metals with the tailings, thereby improving resource recovery efficiency.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A magnetic separation device for recycling manganese-iron ore slag mainly includes a conveying mechanism, a magnetic separation component, a lifting mechanism, and a weak magnetic enhancement component. The conveying mechanism consists of a support frame, a drive roller, a conveyor belt, side plates, and a motor. The drive roller is rotatably mounted at both ends of the support frame via bearings. The conveyor belt is horizontally arranged and wraps around the outer wall of the drive roller. The side plates are symmetrically fixed on both sides of the conveyor belt to prevent material overflow. The motor is mounted at one end of the support frame and is connected to the drive roller for driving the conveyor belt. The baffle is fixed to the support frame with bolts and is located above the conveyor belt to control the material to pass through in a single layer.

[0005] Multiple U-shaped, downward-facing fixed frames are welded to the support structure and positioned directly above the conveyor belt for mounting the magnetic separation assembly. The magnetic separation assembly, installed inside the fixed frames, includes a main magnet and auxiliary magnets. The main magnet is connected to the top of the fixed frame, and the auxiliary magnet is connected to the inner wall of the fixed frame. The main and auxiliary magnets work together to form a magnetic field coverage area. The main magnet consists of multiple permanent magnet blocks arranged in a rectangular array and fixed to the fixed frame. The auxiliary magnets are cylindrical permanent magnets with a nickel-plated surface and are fixed to the fixed frame.

[0006] The magnetic field weakening enhancement component is installed below the conveyor belt via a lifting mechanism. The magnetic field weakening enhancement component includes several electromagnetic coil groups and magnetic guide plate groups. The magnetic guide plate groups are arc-shaped and have several protrusions on their inner walls. The electromagnetic coil groups are installed on the magnetic guide plate groups and are connected to an external power source via wires. A current regulator is provided on the wires to adjust the magnetic field strength.

[0007] The lifting mechanism includes a base, a telescopic rod, a support platform, and an electric push rod. The telescopic rod is installed at the top of the four corners of the base, the support platform is installed on the top of the telescopic rod, the magnetic weakening enhancement component is fixed on the support platform, and the electric push rod is installed on the base and connected to the support platform at the top for adjusting the height of the magnetic weakening enhancement component.

[0008] The working principle of this invention is as follows: After being controlled by baffles, the material is evenly distributed on the conveyor belt and enters the magnetic field coverage area of ​​the magnetic separator as the conveyor belt rotates. The main magnet and auxiliary magnet work together to initially capture ferromagnetic materials. At the same time, the weak magnetic enhancement component enhances the adsorption capacity of weak magnetic materials through the magnetic field generated by the electromagnetic coil group and the magnetic conduction of the magnetic plate group. The lifting mechanism changes the distance between the weak magnetic enhancement component and the conveyor belt through an electric push rod to adapt to materials with different particle sizes and magnetic properties.

[0009] The beneficial effects of this utility model are:

[0010] This invention significantly improves the capture capacity of weakly magnetic materials by combining the synergistic effect of the main magnet and the auxiliary magnet with the dynamic magnetic field adjustment of the weak magnetic enhancement component. The design of the lifting mechanism allows the device to flexibly adapt to various material characteristics. It enhances the capture effect of magnetic materials, reduces the loss of valuable metals in tailings, and solves the problem of insufficient capture capacity of weakly magnetic materials in traditional magnetic separation equipment. Attached Figure Description

[0011] Figure 1 This is an isometric schematic diagram of the present invention.

[0012] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of this utility model viewed from below.

[0014] Figure 4 This is a partial sectional view of the conveying mechanism.

[0015] Figure 5 This is a schematic diagram of the lifting mechanism.

[0016] Figure 6 This is a schematic diagram of the structure of the magnetic field weakening enhancement component.

[0017] In the attached diagram, the following are the reference numerals: 1. Conveying mechanism; 2. Magnetic separation assembly; 3. Lifting mechanism; 4. Weakening magnetic enhancement assembly; 6. Support; 7. Drive roller; 8. Conveyor belt; 9. Side plate; 10. Motor; 11. Baffle; 12. Fixing frame; 13. Main magnet; 14. Auxiliary magnet; 15. Electromagnetic coil assembly; 16. Magnetic guide plate assembly; 19. Base; 20. Telescopic rod; 21. Support platform; 22. Electric push rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a magnetic separation device for recycling manganese-iron ore slag. The device mainly includes a conveying mechanism 1, a magnetic separation component 2, a lifting mechanism 3, and a weak magnetic enhancement component 4. The conveying mechanism 1 is the foundation of the device, primarily composed of a support 6, drive rollers 7, a conveyor belt 8, side plates 9, and a motor 10. The support 6 is welded from rectangular steel pipes, with two drive rollers 7 mounted at both ends via bearings. Keyways at both ends of the drive rollers 7 are used for transmission connection with the motor 10. The conveyor belt 8 is horizontally arranged around the outer walls of the two drive rollers 7, made of high-temperature resistant rubber with anti-slip textures to increase friction. The side plates 9 are symmetrically fixed on both sides of the conveyor belt 8, slightly higher than the upper surface of the conveyor belt 8, to prevent material overflow during conveying. Baffles 11 are bolted to the support 6, located above the conveyor belt 8 near the feed end, to control the material layer thickness and ensure single-layer material distribution.

[0020] like Figure 1 , Figure 2 , Figure 4 As shown, the U-shaped mounting bracket 12, with its opening facing downwards, is welded to the support 6 and located directly above the conveyor belt 8. It is used to install the magnetic separator 2. The number of mounting brackets 12 is determined according to the length of the conveyor belt 8 to ensure uniform magnetic field coverage. The magnetic separator 2 is installed inside the mounting bracket 12 and includes a main magnet 13 and an auxiliary magnet 14. The main magnet 13 consists of multiple permanent magnet blocks arranged in a rectangular array and fixed to the support bracket, which is connected to the top of the mounting bracket 12 by bolts. The auxiliary magnet 14 is a cylindrical permanent magnet with a nickel-plated surface to improve wear resistance and is connected to the inner wall of the mounting bracket 12. The main magnet 13 and the auxiliary magnet 14 work together to form a magnetic field coverage area. The main magnet 13 generates a strong magnetic field to capture ferromagnetic materials, while the auxiliary magnet 14 supplements the strength of the magnetic field at the edges, preventing missed selection due to magnetic field attenuation.

[0021] like Figure 5 , Figure 6As shown, the magnetic field weakening enhancement component 4 is installed below the conveyor belt 8 via a lifting mechanism 3. It includes several electromagnetic coil groups 15 and magnetic guide plate groups 16. The magnetic guide plate groups 16 are arc-shaped with several protrusions on their inner walls. These protrusions are designed to optimize the magnetic field distribution and reduce magnetic field dead zones. The electromagnetic coil groups 15 are mounted on the magnetic guide plate groups 16 and are connected to an external power source via wires. A current regulator is installed on the wires to adjust the magnetic field strength.

[0022] like Figure 5 , Figure 6 As shown, the lifting mechanism 3 includes a base 19, a telescopic rod 20, a support platform 21, and an electric push rod 22. The telescopic rod 20 is installed at the four corners of the base 19, the support platform 21 is installed on the top of the telescopic rod 20, the magnetic weakening enhancement component 4 is fixed on the support platform 21, and the electric push rod 22 is installed on the base 19, with its top connected to the support platform 21, for adjusting the height of the magnetic weakening enhancement component 4. By adjusting the electric push rod 22, the support platform 21 moves up and down along the base 19, thereby changing the distance between the magnetic weakening enhancement component 4 and the conveyor belt 8, adapting to materials with different particle sizes and magnetic properties.

[0023] Work process:

[0024] Material enters the conveyor belt 8 from the feed end. Side plates 9 prevent material spillage. Baffles 11 are bolted to the bracket 6 and located above the conveyor belt 8 near the feed end. They control the material layer thickness to ensure a single-layer distribution. Material enters the magnetic field coverage area of ​​the magnetic separator 2 as the conveyor belt 8 rotates. The conveyor belt 8 is driven by a motor 10, which is connected to a drive roller 7 via a transmission belt. The drive roller 7 drives the conveyor belt 8, and its speed can be adjusted by a frequency converter according to the material characteristics to ensure a suitable residence time for the material within the magnetic field area. When material enters the magnetic field coverage area of ​​the magnetic separator 2, the main magnet 13 and auxiliary magnet 14 work together to form a high-intensity magnetic field. The main magnet 13 consists of multiple permanent magnet blocks arranged in a rectangular array and fixed to a fixed bracket, generating a strong magnetic field, primarily used to capture ferromagnetic materials. The auxiliary magnet 14 is a cylindrical permanent magnet with a nickel-plated surface to improve wear resistance. It is fixed to the fixed frame 12 to supplement the strength of the magnetic field edge area and prevent missed selection due to magnetic field attenuation. During this process, ferromagnetic materials are attracted by the main magnet 13, while non-magnetic materials continue to move forward with the conveyor belt 8. Simultaneously, the magnetic weakening enhancement component 4, through the magnetic field generated by the electromagnetic coil assembly 15 and the magnetic conduction of the magnetic plate assembly 16, further enhances its ability to attract weakly magnetic materials. The electromagnetic coil assembly 15 is mounted on the magnetic plate assembly 16 and is connected to an external power source via wires. A current regulator is installed on the wires to adjust the magnetic field strength according to the material characteristics. The magnetic plate assembly 16 is arc-shaped with several protrusions on its inner wall. These protrusions optimize the magnetic field distribution and reduce the magnetic field blind zone, thereby improving the capture efficiency of weakly magnetic materials. The lifting mechanism 3 changes the distance between the magnetic weakening enhancement component 4 and the conveyor belt 8 via an electric push rod 22 to accommodate materials with different particle sizes and magnetic properties. Specifically, activating the electric push rod 22 moves the support platform 21 up and down along the telescopic rod 20, thereby precisely adjusting the height of the magnetic weakening enhancement component 4. After passing through the combined action of the magnetic separator 2 and the weak magnetic enhancement component 4, the material reaches the end of the conveyor belt 8 for centralized collection and processing. The magnetic separation and adsorption process lasts for a certain period of time. When the preset time is reached, the motor 10 is turned off, and the conveyor belt 8 immediately stops conveying material. At this time, a large amount of ferromagnetic material has been adsorbed onto the main magnet 13. The operator must carefully remove these materials from the main magnet 13. After all the adsorbed ferromagnetic material has been removed, the conveyor mechanism 1 is restarted to begin the next adsorption operation of ferromagnetic material in the material.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A magnetic separation device for recovering manganese-iron ore slag, characterized in that: The magnetic separation device for recycling manganese iron ore slag includes a conveying mechanism (1), a magnetic separation component (2), a lifting mechanism (3), and a weak magnetic enhancement component (4). The conveying mechanism (1) consists of a support (6), a drive roller (7), a conveyor belt (8), side plates (9), and a motor (10). The drive roller (7) is mounted on both ends of the support (6) via bearings. The conveyor belt (8) is wrapped around the outer wall of the drive roller (7). The side plates (9) are symmetrically fixed on both sides of the conveyor belt (8). The motor (10) is connected to the drive roller (7) for transmission. A baffle (11) is fixed on the support (6) and located above the conveyor belt (8). Multiple fixed frames (12) The magnetic separation component (2) is welded to the bracket (6) and located directly above the conveyor belt (8). The magnetic separation component (2) is installed inside the fixed frame (12) and includes a main magnet (13) and an auxiliary magnet (14). The main magnet (13) is connected to the top of the fixed frame (12), and the auxiliary magnet (14) is connected to the inner wall of the fixed frame (12). The weak magnetic enhancement component (4) is installed below the conveyor belt (8) through the lifting mechanism (3). The weak magnetic enhancement component (4) includes an electromagnetic coil group (15) and a magnetic guide plate group (16). The magnetic guide plate group (16) is arc-shaped and has several protrusions on its inner wall. The electromagnetic coil group (15) is installed on the magnetic guide plate group (16).

2. The magnetic separation device for recovering manganese-iron ore slag as described in claim 1, characterized in that: The lifting mechanism (3) includes a base (19), a telescopic rod (20), a support platform (21), and an electric push rod (22). The telescopic rod (20) is installed at the top of the four corners of the base (19), the support platform (21) is installed on the top of the telescopic rod (20), the weak magnetic enhancement component (4) is fixed on the support platform (21), and the electric push rod (22) is installed on the base (19) with its top connected to the support platform (21) for adjusting the height of the weak magnetic enhancement component (4).

3. The magnetic separation device for recovering manganese-iron ore slag as described in claim 2, characterized in that: The main magnet (13) is composed of multiple permanent magnet blocks, which are arranged in a rectangular array and fixed on a fixed bracket. The auxiliary magnet (14) is a cylindrical permanent magnet with a nickel layer plated on its surface and fixed on a fixed frame (12).

4. A magnetic separation device for recovering manganese-iron ore slag as described in claim 1 or 2, characterized in that: The electromagnetic coil assembly (15) is connected to an external power source via a wire, and a current regulator is provided on the wire.

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