Dry magnetic separator with spiral feeding function
By introducing a screw feeder into the dry magnetic separator, the problem of material agglomeration caused by the vibrating feeder was solved, achieving uniform material distribution and efficient separation.
Patent Information
- Application Number
- CN202423000313.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In dry mineral processing, vibrating feed hoppers tend to compact and agglomerate minerals with fine particle size and low or slightly high moisture content, resulting in uneven material distribution and affecting magnetic separation efficiency.
The dry magnetic separator with screw feeding function ensures uniform material distribution, prevents clogging, improves equipment reliability and continuous operation capability, and achieves uniform feeding through the design of cylinder, rotating column and screw blade.
It achieves uniform distribution of materials during the magnetic separation process, avoids local overload or no-load phenomena, and improves the separation effect between magnetic and non-magnetic materials.
Smart Images

Figure CN223888200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry magnetic separator technology, and in particular to a dry magnetic separator with a spiral feeding function. Background Technology
[0002] In dry mineral processing, feeding has always been a difficult problem to solve. Firstly, the incoming material is fed by a belt conveyor, which is relatively concentrated. However, the magnetic separator drum has a wide surface area and needs to be spread evenly. The previous method was to use a vibrating feeder. However, while the vibrating feeder is relatively ideal when the mineral particle size is relatively coarse and the moisture content is very low, when the particle size is relatively fine, the vibrating feeder will compact the material that was originally loose. When the moisture content is slightly higher, there will be more compaction and clumping, which is not conducive to the separation of the magnetic separator.
[0003] In summary, this application proposes a dry magnetic separator with a screw feeder to solve the aforementioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a dry magnetic separator with a spiral feeding function, which can solve the problem that while vibrating feeders are relatively ideal when the mineral particle size is relatively coarse and the moisture content is very low, when the particle size is relatively fine, the vibrating feeder will compact the material that was originally loose. When the moisture content is slightly higher, there will be even more compaction and clumping, which is not conducive to the separation of the magnetic separator.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dry magnetic separator with a screw feeder function, comprising:
[0006] frame;
[0007] The feeding assembly is mounted on the frame and includes a cylinder, a rotating column, a left-handed blade, and a right-handed blade. The rotating column is rotatably mounted on one side of the cylinder, and the left-handed blade and the right-handed blade are fixedly mounted on the outer wall of the rotating column. The left-handed blade and the right-handed blade are arranged in opposite spiral directions.
[0008] Preferably, a placement frame is fixedly installed on one side of the frame, a motor is fixedly installed on the top of the placement frame, a cylinder is provided inside the frame, and the output shaft of the motor is fixedly installed on one side of the cylinder to drive the cylinder to rotate.
[0009] Preferably, the cylinder body is provided with a fan-shaped mounting cylinder inside, a magnetic system is fixedly installed on the outer wall of the fan-shaped mounting cylinder, a fixing plate is fixedly installed on the top of the frame, one end of the fan-shaped mounting cylinder passes through the cylinder body and is fixedly installed on one side of the fixing plate, the cylinder body and the fan-shaped mounting cylinder are rotatably installed, and the rotation of the cylinder body drives the material to separate.
[0010] Preferably, a flow divider is fixedly installed on the inner bottom of the frame, which divides the frame into a non-magnetic material cavity and a magnetic material cavity, facilitating the diversion of materials.
[0011] Preferably, the frame has through holes on both the front and rear sides, and guide plates are fixedly installed on both the front and rear sides of the frame to serve as guides.
[0012] Preferably, the feeding assembly further includes a second motor. A cylinder is fixedly installed on the top of the frame, a second placement frame is fixedly installed on the top of the frame, and a second motor is fixedly installed on the top of the second placement frame. The other end of the rotating column passes through the cylinder and is fixedly installed with the output shaft of the second motor. An opening is provided on the outer wall of the cylinder. In dry magnetic separation, the material has poor flowability and is prone to accumulation. The left-hand and right-hand rotating blades can effectively disperse the material, prevent blockage, improve the reliability and continuous operation capability of the equipment, and allow the material to flow down evenly through the opening and form a line. This helps the material to maintain a uniform distribution when entering the magnetic separator, avoids material accumulation or concentration, and ensures that the load of each part is uniform during the magnetic separation process. This reduces local overload or no-load phenomena and ensures that the flow state of the material is relatively consistent when entering the magnetic separation zone. This allows each particle to fully contact the magnetic field, improves the separation effect between magnetic and non-magnetic materials, and solves the feeding problem of fine dry materials being concentrated and not dispersed, and clumping due to vibration.
[0013] Preferably, the cylinder is located above the barrel, so that the discharged material falls onto the barrel for magnetic separation.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This dry magnetic separator with spiral feeding function utilizes a combination of a cylinder, rotating column, motor, and left-hand and right-hand blades. In dry magnetic separation, where material flow is poor and accumulation is prone to occur, the left-hand and right-hand blades effectively disperse the material, prevent clogging, and improve the reliability and continuous operation capability of the equipment. The material flows down evenly through the opening and forms a line, which helps maintain a uniform distribution of material when entering the magnetic separator, avoiding material accumulation or concentration. This ensures uniform load on all parts during the magnetic separation process, reduces local overload or idling, and ensures a relatively consistent flow pattern of material when entering the magnetic separation zone. This allows each particle to fully contact the magnetic field, improving the separation effect between magnetic and non-magnetic materials and solving the feeding problems of concentrated and non-dispersed fine dry materials and agglomeration due to vibration. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a three-dimensional sectional view of the present invention;
[0019] Figure 3 This is a three-dimensional view of the cylindrical part of this utility model.
[0020] Reference numerals in the attached diagram: 1. Frame; 2. Motor 1; 3. Cylinder; 4. Sector-shaped mounting cylinder; 5. Magnetic system; 6. Fixing plate; 7. Diverter plate; 8. Through hole; 9. Guide plate; 10. Cylinder; 11. Rotating column; 12. Motor 2; 13. Left-handed blade; 14. Right-handed blade. Detailed Implementation
[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Please see Figure 1-3 This utility model provides a technical solution: a dry magnetic separator with a spiral feeding function, including a frame 1 and a feeding assembly. The feeding assembly is set on the frame 1 and includes a cylinder 10, a rotating column 11, a left-handed blade 13 and a right-handed blade 14. The rotating column 11 is rotatably mounted on one side of the cylinder 10. The left-handed blade 13 and the right-handed blade 14 are fixedly mounted on the outer wall of the rotating column 11. The spiral directions of the left-handed blade 13 and the right-handed blade 14 are arranged in opposite directions.
[0023] Furthermore, a placement frame is fixedly installed on one side of the frame 1, and a motor 2 is fixedly installed on the top of the placement frame. A cylinder 3 is provided inside the frame 1, and the output shaft of the motor 2 is fixedly installed on one side of the cylinder 3 to drive the cylinder 3 to rotate.
[0024] Furthermore, a fan-shaped mounting cylinder 4 is provided inside the cylinder 3, and a magnetic system 5 is fixedly installed on the outer wall of the fan-shaped mounting cylinder 4. A fixing plate 6 is fixedly installed on the top of the frame 1. One end of the fan-shaped mounting cylinder 4 passes through the cylinder 3 and is fixedly installed on one side of the fixing plate 6. The cylinder 3 and the fan-shaped mounting cylinder 4 are rotatably installed, and the rotation of the cylinder 3 drives the material to be separated.
[0025] Furthermore, a flow divider 7 is fixedly installed on the inner bottom of the frame 1. The flow divider 7 divides the frame 1 into a non-magnetic material cavity and a magnetic material cavity, which facilitates the diversion of materials.
[0026] Furthermore, through holes 8 are provided on both the front and rear sides of the frame 1, and guide plates 9 are fixedly installed on both the front and rear sides of the frame 1 to serve as guides.
[0027] Secondly, the feeding assembly also includes a second motor 12. A cylinder 10 is fixedly installed on the top of the frame 1. A second placement rack is fixedly installed on the top of the frame 1, and the second motor 12 is fixedly installed on the top of the placement rack. The other end of the rotating column 11 passes through the cylinder 10 and is fixedly installed to the output shaft of the second motor 12. An opening is provided on the outer wall of the cylinder 10. A belt conveyor transports the material to the center of the rotating column 11. The second motor 12 drives the left-hand and right-hand blades 13 and 14 on the rotating column 11 to rotate, conveying the material to both sides. When the material detaches from the cylinder 10 from the front, without the support of the cylinder 10, the material flows down naturally, forming a uniform feeding line. The material falls into the cylinder. In dry magnetic separation, the material has poor flowability and is prone to accumulation. The left-handed blade 13 and the right-handed blade 14 effectively disperse the material, prevent blockage, and improve the reliability and continuous operation capability of the equipment. The material flows down evenly through the opening and forms a line, which helps the material to maintain a uniform distribution when entering the magnetic separator, avoiding material accumulation or concentration. This ensures that the load of each part is uniform during the magnetic separation process, reduces local overload or no-load phenomena, and ensures that the flow state of the material is relatively consistent when entering the magnetic separation zone. This allows each particle to fully contact the magnetic field, improves the separation effect between magnetic and non-magnetic materials, and solves the feeding problem of fine dry material being concentrated and not dispersed, and clumping due to vibration.
[0028] Secondly, the cylinder 10 is located above the cylinder 3, so that the discharged material falls onto the cylinder 3 for magnetic separation.
[0029] Working principle: During use, start motor 2 and left-hand vane 13. The material is conveyed to the center of rotating column 11 by belt conveyor. Motor 2 drives left-hand vane 13 and right-hand vane 14 on rotating column 11 to rotate. The left-hand vane 13 and right-hand vane 14 convey the material to both sides. When the material leaves the cylinder 10 from the front, it flows down naturally in a line due to the lack of support from the cylinder 10. The material falls onto the cylinder 3 and is separated under the action of magnetic force. Magnetic materials are attracted to the surface of cylinder 3 due to the strong magnetic force, while non-magnetic materials fall into the non-magnetic material cavity and are conveyed to the guide plate 9 for discharge through the diversion plate 7. As the cylinder 3 rotates, the cylinder 3 and the fan-shaped mounting cylinder 4 rotate in opposite directions, causing magnetic materials to fall away from the magnetic system 5 into the magnetic material cavity and then be discharged into the guide plate 9 through the diversion plate 7, thereby achieving the purpose of magnetic separation.
[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A dry magnetic separator with screw feeding function, characterized in that, include: Rack (1); The feeding assembly is mounted on the frame (1). The feeding assembly includes a cylinder (10), a rotating column (11), a left-handed blade (13), and a right-handed blade (14). The rotating column (11) is rotatably mounted on one side of the cylinder (10). The left-handed blade (13) and the right-handed blade (14) are fixedly mounted on the outer wall of the rotating column (11). The left-handed blade (13) and the right-handed blade (14) are arranged in opposite spiral directions. The feeding assembly also includes a second motor (12). The cylinder (10) is fixedly mounted on the top of the frame (1). The second placement frame is fixedly mounted on the top of the frame (1). The second motor (12) is fixedly mounted on the top of the second placement frame. The other end of the rotating column (11) passes through the cylinder (10) and is fixedly mounted to the output shaft of the second motor (12). An opening is provided on the outer wall of the cylinder (10).
2. A dry magnetic separator with screw feeding function according to claim 1, characterized in that: A placement rack is fixedly installed on one side of the frame (1), and a motor (2) is fixedly installed on the top of the placement rack. A cylinder (3) is provided inside the frame (1), and the output shaft of the motor (2) is fixedly installed on one side of the cylinder (3).
3. A dry magnetic separator with screw feeding function according to claim 2, characterized in that: The inside of the cylinder (3) is provided with a fan-shaped mounting cylinder (4), and a magnetic system (5) is fixedly installed on the outer wall of the fan-shaped mounting cylinder (4). A fixing plate (6) is fixedly installed on the top of the frame (1). One end of the fan-shaped mounting cylinder (4) passes through the cylinder (3) and is fixedly installed on one side of the fixing plate (6).
4. A dry magnetic separator with screw feeding function according to claim 3, characterized in that: A flow divider plate (7) is fixedly installed on the inner bottom of the frame (1), which divides the frame (1) into a non-magnetic material cavity and a magnetic material cavity.
5. A dry magnetic separator with screw feeding function according to claim 4, characterized in that: The frame (1) has through holes (8) on both the front and rear sides, and guide plates (9) are fixedly installed on both the front and rear sides of the frame (1).
6. A dry magnetic separator with screw feeding function according to claim 5, characterized in that: The cylinder (10) is located above the cylinder body (3).