Magnetic separation equipment for recycling tailings

Abstract

The magnetic separation equipment comprises a crushing box and a magnetic separation box, a double-roller crushing mechanism is arranged in the crushing box, a rotating shaft is rotationally arranged in the magnetic separation box, a plurality of magnetic discs are fixedly arranged on the rotating shaft in the length direction of the rotating shaft at equal intervals, and a waste residue outlet and an iron ore outlet are formed in the bottom of the magnetic separation box. According to the novel magnetic separator disclosed by the utility model, the crushing box and the magnetic separation box are integrally designed, so that the crushing process and the magnetic separation process are tightly combined, the equipment investment and the operation cost are saved, the scraping plate of the novel magnetic separator is obliquely arranged, and the novel magnetic separator has the advantages that the crushing process and the magnetic separation process are compact; iron ore particles adhered to the magnetic disk can be effectively scraped, an iron ore outlet can be shielded, waste residues are prevented from being mixed with the iron ore, it can be guaranteed that feeding and treatment of tailings are continued while the iron ore is discharged, feeding does not need to be stopped, and continuous operation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tailings recovery devices, in particular to a magnetic separation device for tailings recovery. Background Art

[0002] Tailings are the residual material left after ore has been through the beneficiation process, containing fewer useful minerals and more impurities. Tailings typically require further processing to recover useful minerals, such as iron ore and copper ore. Magnetic separation of tailings utilizes the different magnetic properties of magnetic and non-magnetic minerals under an applied magnetic field to separate them. Magnetic separation equipment can effectively extract magnetic minerals (such as iron ore) from tailings, achieving the dual goals of resource recovery and environmental protection.

[0003] Traditional tailings magnetic separation equipment has several major drawbacks that limit its efficiency and operational continuity in practical applications:

[0004] Two sets of equipment for crushing and magnetic separation: Due to the varying particle sizes of tailings, they often need to be crushed first by crushing equipment before being transported to a magnetic separator for separation. This phased operation not only increases equipment investment and operating costs, but also reduces overall processing efficiency.

[0005] Irrational outlet design: Traditional magnetic separators often discharge waste slag and iron ore through the same outlet. This requires stopping feed to prevent mixing of the waste slag and iron ore, making continuous magnetic separation impossible. This operation not only increases operational complexity but also reduces equipment efficiency and stability. Utility Model Content

[0006] (1) Technical issues

[0007] The utility model provides a magnetic separation device for tailings recovery, aiming to solve the problems of low overall efficiency of segmented operation of traditional tailings recovery equipment and inability to operate continuously due to the outlet design.

[0008] (2) Technical content

[0009] In order to solve the above technical problems, the technical solution of the utility model is: a magnetic separation equipment for tailings recovery, including a crushing box and a magnetic separation box, the crushing box is fixedly arranged at the upper end of the magnetic separation box and is connected to the inner cavity of the magnetic separation box, a double-roller crushing mechanism is arranged inside the crushing box, a rotating shaft is arranged inside the magnetic separation box, and a number of equally spaced magnetic discs are fixed on the rotating shaft along the length direction of the rotating shaft, a motor for driving the rotating shaft is fixed outside the magnetic separation box, a waste slag outlet and an iron ore outlet are provided at the bottom of the magnetic separation box, a scraper plate arranged obliquely downward is fixed on the inner wall of the magnetic separation box and located above the iron ore outlet, a scraper groove is provided on the scraper plate corresponding to each magnetic disc, and the inner wall of the scraper groove is close to the side of the magnetic disc.

[0010] Furthermore, a flow balancing plate is fixedly provided near the top surface inside the magnetic separation box, a plurality of evenly distributed through holes are provided on the flow balancing plate, and a vibration motor is fixedly provided at the bottom of the flow balancing plate.

[0011] Furthermore, the double-roller crushing mechanism includes two rollers rotatably arranged inside the crushing box, and also includes a second motor fixedly arranged outside the crushing box for driving the rollers to rotate, and crushing teeth are fixedly provided on the surface of the rollers.

[0012] Furthermore, the waste slag outlet and the iron ore outlet are both funnel-shaped.

[0013] Furthermore, the scraper plate is arranged obliquely downward and its horizontal extension length is greater than the width of the iron ore outlet.

[0014] (3) Technical effects

[0015] Compared with the prior art, the advantages of the present invention are as follows: the crushing box and the magnetic separation box of the utility model are designed as one body, so that the crushing and magnetic separation processes are closely integrated. The tailings are preliminarily crushed directly in the crushing box before entering the magnetic separation process, which can greatly simplify the processing flow, save equipment investment and operating costs, and improve processing efficiency. The scraper plate of the new magnetic separator is set at an angle, which can not only effectively scrape off the iron ore particles adhering to the magnetic disc, but also block the iron ore outlet to prevent the waste slag from mixing with the iron ore. The scraper groove on the scraper plate ensures that the iron ore can fall smoothly into the iron ore outlet, while the waste slag is discharged through the waste slag outlet, and the two do not interfere with each other. Since the waste slag and iron ore are discharged through the funnel-shaped outlet respectively, the design can ensure that the feeding and processing of the tailings can continue while the iron ore is discharged, without stopping the feeding, and continuous operation is possible. The flow equalizing plate allows the material to be evenly scattered onto multiple magnetic discs, thereby improving the efficiency of magnetic separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structure diagram of a magnetic separation device for tailings recovery in this utility model. Figure 1 .

[0017] Figure 2This is a three-dimensional structure diagram of a magnetic separation device for tailings recovery in this utility model. Figure 2 .

[0018] Figure 3 The utility model is a schematic diagram of the main structure of a magnetic separation device for tailings recovery.

[0019] Figure 4 It is a right side structural schematic diagram of a magnetic separation device for tailings recovery according to the present utility model.

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of a magnetic separation device for tailings recovery in this utility model. Figure 1 .

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of a magnetic separation device for tailings recovery in this utility model. Figure 2 .

[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of a magnetic separation device for tailings recovery in this utility model. Figure 3 .

[0023] As shown in the figure: 1. Crushing box; 2. Magnetic separation box; 3. Rotating shaft; 4. Magnetic disc; 5. Motor; 6. Waste slag outlet; 7. Iron ore outlet; 8. Scraper plate; 9. Scraper notch; 10. Flow equalizing plate; 11. Through hole; 12. Vibrating motor; 13. Rotating roller; 14. Motor 2; 15. Crushing teeth. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they cannot be understood as limitations on the present invention.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "provided with," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Combined with attachment Figure 1 To the attached Figure 7 The ore crushing box 1 is provided with a plurality of roller crushing mechanisms, and the ore crushing mechanism is provided with a plurality of roller crushing mechanisms, and the ore crushing mechanism is provided with a plurality of roller crushing mechanisms.

[0029] In this embodiment, the double-roller crushing mechanism includes two rollers 13 rotatably arranged inside the crushing box 1, and also includes a second motor 14 fixedly arranged outside the crushing box 1 for driving the rollers 13 to rotate. Crushing teeth 15 are fixedly provided on the surface of the rollers 13.

[0030] Specific implementation method of the utility model: Before use, the utility model is first connected to an external power supply, and the material is poured into the inlet at the upper end of the crushing box 1, and the double-roller crushing mechanism is started to crush the material into particles of uniform size, and then the material falls into the magnetic separation box 2. When the material falls on the magnetic disc 4, the iron ore in the material is adsorbed on the surface of the magnetic disc 4, and the waste slag continues to fall. Because the scraper plate 8 is blocked above the iron ore outlet 7, the waste slag is discharged from the waste slag outlet 6. The motor 5 is started to drive the magnetic disc 4 to rotate. When the magnetic disc 4 rotates, the scraper plate 8 scrapes the iron ore on the surface of the magnetic disc 4 to the iron ore outlet 7 just below.

[0031] Example 2

[0032] This embodiment, based on Example 1, further incorporates a current equalizing plate 10 fixedly disposed near the top surface of the magnetic separation box 2. This plate is provided with a number of evenly spaced through-holes 11, and a vibration motor 12 is fixedly disposed at the bottom of the plate. The design of the current equalizing plate 10 ensures that the tailings pass more evenly through the area of ​​the magnetic disc 4 during magnetic separation, thereby enhancing the effect of the magnetic field on the tailings. This enhanced current equalization improves the efficiency of magnetic separation.

[0033] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A magnetic separation device for tailings recovery, comprising a crushing box (1) and a magnetic separation box (2), wherein the crushing box (1) is fixedly arranged at the upper end of the magnetic separation box (2) and communicated with the inner cavity of the magnetic separation box (2), and a double-roller crushing mechanism is arranged inside the crushing box (1), characterized in that: The magnetic separation box (2) is provided with a rotating shaft (3) inside, and a plurality of magnetic discs (4) are fixedly provided on the rotating shaft (3) along the length direction of the rotating shaft at equal intervals. A motor (5) for driving the rotating shaft (3) to rotate is fixedly provided on the outside of the magnetic separation box (2). A waste slag outlet (6) and an iron ore outlet (7) are provided at the bottom of the magnetic separation box (2). A scraper plate (8) arranged obliquely downward is fixedly provided on the inner wall of the magnetic separation box (2) and located above the iron ore outlet (7). A scraper notch (9) is provided on the scraper plate (8) corresponding to each magnetic disc (4), and the inner wall of the scraper notch (9) is close to the side of the magnetic disc (4).

2. The magnetic separation equipment for tailings recovery according to claim 1, characterized in that: A flow balancing plate (10) is fixedly provided near the top surface inside the magnetic separation box (2), a plurality of evenly distributed through holes (11) are provided on the flow balancing plate (10), and a vibration motor (12) is fixedly provided at the bottom of the flow balancing plate (10).

3. The magnetic separation equipment for tailings recovery according to claim 1, characterized in that: The double-roller crushing mechanism comprises two rotating rollers (13) rotatably arranged inside a crushing box (1), and also comprises a second motor (14) fixedly arranged outside the crushing box (1) for driving the rollers (13) to rotate, and crushing teeth (15) are fixedly provided on the surface of the rollers (13).

4. The magnetic separation equipment for tailings recovery according to claim 1, characterized in that: The waste slag outlet (6) and the iron ore outlet (7) are both funnel-shaped.

5. The magnetic separation equipment for tailings recovery according to claim 1, characterized in that: The scraper plate (8) is arranged obliquely downward and has a horizontal extension length greater than the width of the iron ore outlet (7).

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