Permanent-magnet dry-type cylindrical magnetic separator for ore concentration
By introducing a feeding device and an arc panel into a permanent magnet dry drum magnetic separator for ore beneficiation, and combining it with a servo motor to drive the material plate to rotate, the problem of uneven material distribution is solved, the magnetic separation effect is improved, and resource consumption is reduced.
Patent Information
- Application Number
- CN202520203728.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Traditional permanent magnet dry drum magnetic separators for ore beneficiation suffer from uneven material distribution during feeding, which weakens the magnetic separation effect and may also affect magnetic penetration due to material crowding, thus affecting the magnetic separation effect.
A permanent magnet dry cylindrical magnetic separator including a feeding device and an arc panel was designed. The feeding plate is driven to rotate by a servo motor to distribute the material evenly. The permanent magnets are set separately from the cylinder to achieve uniform feeding and convenient discharge of magnetic materials.
It achieves uniform material feeding and improved magnetic separation effect, saving resource consumption and reducing production costs.
Smart Images

Figure CN223959803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic separator technology, and more specifically, to a permanent magnet dry drum magnetic separator for ore beneficiation. Background Technology
[0002] The permanent magnet dry drum magnetic separator for ore beneficiation is a high-efficiency and energy-saving ore sorting equipment. The working principle of the permanent magnet dry drum magnetic separator is mainly based on the permanent magnet drum iron removal technology. Permanent magnet drum iron removal is a high-efficiency and energy-saving iron removal technology. It uses the strong magnetic field generated by permanent magnets to automatically separate and remove ferromagnetic impurities from materials.
[0003] Traditional permanent magnet dry drum magnetic separators for ore beneficiation have the following shortcomings: In operation, the length of the feed inlet is typically designed to match the length of the drum. This design aims to ensure that the material is evenly distributed on the drum surface, thereby maximizing the magnetic separation area. However, directly pouring material in can easily lead to excessive accumulation in the middle section, while the ends of the drum have relatively sparse material. This uneven distribution not only reduces the effective magnetic separation area at the ends of the drum but may also cause the thick layer of material in the middle to become overcrowded, hindering the effective penetration of magnetic force and thus affecting the magnetic separation effect. Therefore, improvements are needed. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a permanent magnet dry drum magnetic separator for ore beneficiation, which has the advantage of uniform feeding.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a permanent magnet dry drum magnetic separator for ore beneficiation, comprising a magnetic separator body, a support rod fixedly installed at the bottom of the magnetic separator body, a discharge port opened at the top of the magnetic separator body, a feeding device fixedly installed above the discharge port at the top of the magnetic separator body, a feeding port opened above the feeding device, a circular groove opened inside the feeding device at the bottom of the feeding port, a connecting shaft rotatably installed inside the circular groove, a feeding plate evenly fixedly installed on the outer side of the connecting shaft, an arc panel fixedly installed on the outer side of the feeding plate, the feeding plate corresponding to the inner wall of the circular groove, and the circular groove corresponding to the discharge port.
[0006] As a preferred technical solution of this utility model, a cylinder is rotatably installed inside the magnetic separator body. A slot is opened at the front end of the cylinder body. A fixing rod extending into the slot is fixedly installed on the inner side of the magnetic separator body. Fixing rings are uniformly fixedly sleeved on the outer side of the fixing rods. A connecting plate is uniformly fixedly installed on the outer side of the fixing rings. A permanent magnet is fixedly installed on the outer side of the connecting plate. The permanent magnet corresponds to the inner wall of the cylinder body.
[0007] As a preferred embodiment of this utility model, a platform is fixedly installed on the left side of the magnetic separator body, a servo motor is fixedly installed on the top of the platform, and a rotating shaft extending into the interior of the magnetic separator body is fixedly installed on the inner side of the servo motor. The rotating shaft is fixedly connected to the left end of the cylinder body.
[0008] As a preferred embodiment of the present invention, a second rotating shaft is rotatably mounted on the outer side of the feeding device. The second rotating shaft is fixedly connected to the left end of the connecting shaft, and the second rotating shaft is connected to the first rotating shaft via a belt drive.
[0009] As a preferred embodiment of this utility model, a fixing block is fixedly installed on the outer side of the second rotating shaft, and the fixing block is located on the outer side of the belt.
[0010] As a preferred embodiment of this utility model, an installation plate is fixedly installed on the inner side of the magnetic separator body, and a scraper is fixedly installed on the inner side of the installation plate, the scraper corresponding to the cylinder body.
[0011] As a preferred technical solution of this utility model, the bottom of the magnetic separator body is provided with a discharge port one and a discharge port two at its two ends respectively. A triangular plate located between the discharge port one and the discharge port two is fixedly installed on the inner side of the magnetic separator body. Inclined plates are fixedly installed at both ends of the discharge port one and the discharge port two.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model pours material into the inside of the feeding device from the inlet, placing the material between the inner sides of the feeding plates. The arc panel ensures that the material is evenly distributed between the inner sides of the feeding plates. The servo motor is started, causing the connecting shaft to drive the feeding plates to rotate. When the material moves to the top of the feeding port, it falls into the inside of the magnetic separator body due to gravity, thus achieving a uniform feeding effect. Compared with the traditional permanent magnet dry drum magnetic separator for ore beneficiation, this permanent magnet dry drum magnetic separator for ore beneficiation improves the magnetic separation effect by using the arc panel to ensure that the material falls evenly into the inside of the magnetic separator body.
[0014] 2. This utility model uses permanent magnets to attract materials to the outer surface of the drum. Since the fixing rod is fixed to the inside of the magnetic separator, the drum continues to drive the material to rotate. When the material rotates to the left half of the magnetic separator, the material loses its magnetic force and falls into the inside of the discharge port. Compared with the traditional permanent magnet dry drum magnetic separator for ore beneficiation, this permanent magnet dry drum magnetic separator for ore beneficiation separates the permanent magnets from the drum, making it easier to discharge magnetic materials. It eliminates the need for external water or wind power to remove magnetic materials, saving resources and reducing production costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a vertical cross-sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram of the internal structure of the feeding device of this utility model;
[0018] Figure 4 This is a schematic diagram of the exploded structure of the cylindrical body and permanent magnet of this utility model;
[0019] Figure 5 This is a schematic cross-sectional view of the present invention.
[0020] In the diagram: 1. Magnetic separator body; 2. Feeding device; 3. Support rod; 4. Platform; 5. Servo motor; 6. Rotating shaft one; 7. Cylinder; 8. Empty trough; 9. Fixing rod; 10. Fixing ring; 11. Connecting plate; 12. Permanent magnet; 13. Rotating shaft two; 14. Connecting shaft; 15. Discharge plate; 16. Arc panel; 17. Fixing block; 18. Belt; 19. Feed inlet; 20. Circular trough; 21. Discharge outlet; 22. Discharge outlet one; 23. Discharge outlet two; 24. Triangular plate; 25. Mounting plate; 26. Scraper; 27. Inclined plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1 to 5 As shown, this utility model provides a permanent magnet dry drum magnetic separator for ore beneficiation, including a magnetic separator body 1, a support rod 3 fixedly installed at the bottom of the magnetic separator body 1, a discharge port 21 opened at the top of the magnetic separator body 1, a feeding device 2 fixedly installed above the discharge port 21 at the top of the magnetic separator body 1, a feed inlet 19 opened above the feeding device 2, a circular groove 20 opened inside the feeding device 2 at the bottom of the feed inlet 19, a connecting shaft 14 rotatably installed inside the circular groove 20, a discharge plate 15 evenly fixedly installed on the outside of the connecting shaft 14, an arc panel 16 fixedly installed on the outside of the discharge plate 15, the discharge plate 15 corresponding to the inner wall of the circular groove 20, and the circular groove 20 corresponding to the discharge port 21.
[0023] In use, the material is poured into the feeding device 2 through the inlet 19, allowing it to fall into the circular trough 20 and be placed between the inner sides of the discharge plate 15. The servo motor 5 is started, causing the servo motor 5 to drive the rotating shaft 6 to rotate. The rotating shaft 6 drives the rotating shaft 13 to rotate via the belt 18. The rotating shaft 13 drives the connecting shaft 14 to rotate, causing the connecting shaft 14 to drive the discharge plate 15 to rotate. The material moves through the arc panel 16 to both ends of the discharge plate 15, so that it is evenly distributed between the inner sides of the discharge plate 15. When the material moves above the discharge port 21, it falls into the interior of the magnetic separator 1 due to gravity, thus achieving the effect of uniform feeding.
[0024] By pouring the material into the inside of the feeding device 2 through the inlet 19, the material is placed between the inner sides of the discharge plate 15. The arc panel 16 makes it evenly distributed between the inner sides of the discharge plate 15. The servo motor 5 is started, which makes the connecting shaft 14 drive the discharge plate 15 to rotate. When the material moves to the top of the discharge port 21, it falls into the inside of the magnetic separator body 1 due to gravity, thus achieving the effect of uniform feeding. Compared with the traditional permanent magnet dry drum magnetic separator for ore beneficiation, this permanent magnet dry drum magnetic separator for ore beneficiation improves the magnetic separation effect by making the material fall evenly into the inside of the magnetic separator body 1 through the arc panel 16.
[0025] The magnetic separator body 1 has a rotating cylinder 7 inside, and a slot 8 is opened at the front end of the cylinder 7. A fixing rod 9 extending into the slot 8 is fixedly installed on the inner side of the magnetic separator body 1. A fixing ring 10 is uniformly fixedly sleeved on the outer side of the fixing rod 9. A connecting plate 11 is uniformly fixedly installed on the outer side of the fixing ring 10. A permanent magnet 12 is fixedly installed on the outer side of the connecting plate 11. The permanent magnet 12 corresponds to the inner wall of the cylinder 7.
[0026] Start the servo motor 5, which drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the cylinder 7 to rotate. The material is attracted to the outer surface of the cylinder 7 by the permanent magnet 12. Since the fixing rod 9 is fixed inside the magnetic separator 1, the cylinder 7 continues to drive the material to rotate. When the material rotates to the left half of the magnetic separator 1, the material loses the magnetic force and falls into the discharge port 23, thus completing the magnetic separation operation.
[0027] The material is attracted to the outer surface of the cylinder 7 by the permanent magnet 12. Since the fixing rod 9 is fixed to the inside of the magnetic separator body 1, the cylinder 7 continues to drive the material to rotate. When the material rotates to the left half of the magnetic separator body 1, the material loses the magnetic force and falls into the inside of the discharge port 23. Compared with the traditional permanent magnet dry cylinder magnetic separator for ore beneficiation, this permanent magnet dry cylinder magnetic separator for ore beneficiation separates the permanent magnet 12 from the cylinder 7, making it more convenient to discharge magnetic materials. It eliminates the need for external water or wind power to remove magnetic materials, saves resources, and reduces production costs.
[0028] The magnetic separator body 1 has a platform 4 fixedly installed on its left side, a servo motor 5 fixedly installed on the top of the platform 4, and a rotating shaft 6 extending into the magnetic separator body 1 fixedly installed on the inner side of the servo motor 5. The rotating shaft 6 is fixedly connected to the left end of the cylinder 7.
[0029] Start the servo motor 5, which drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the cylinder 7 to rotate. The rotating shaft 6 drives the rotating shaft 13 to rotate via the belt 18. The rotating shaft 13 drives the connecting shaft 14 to rotate, which in turn drives the feeding plate 15 to rotate.
[0030] Among them, a rotating shaft 13 is rotatably installed on the outside of the feeding device 2. The rotating shaft 13 is fixedly connected to the left end of the connecting shaft 14. The rotating shaft 13 and the rotating shaft 6 are connected by a belt 18.
[0031] Start the servo motor 5, and the first rotating shaft 6 drives the second rotating shaft 13 to rotate via the belt 18. The second rotating shaft 13 drives the connecting shaft 14 to rotate, which in turn drives the unloading plate 15 to rotate.
[0032] Among them, a fixing block 17 is fixedly installed on the outer side of the rotating shaft 13, and the fixing block 17 is located on the outer side of the belt 18.
[0033] By installing a fixing block 17 on the outside of the rotating shaft 13, the fixing block 17 limits the belt 18 and prevents the belt 18 from coming off the rotating shaft 13.
[0034] The magnetic separator body 1 is fixedly installed with an installation plate 25, and a scraper 26 is fixedly installed on the inner side of the installation plate 25. The scraper 26 corresponds to the cylinder body 7.
[0035] When the cylinder 7 rotates, if material remains on the outer surface of the cylinder 7, the scraper 26 can clean the remaining material, making it easy to use.
[0036] The magnetic separator body 1 has discharge port 1 22 and discharge port 23 at its bottom ends respectively. A triangular plate 24 is fixedly installed on the inner side of the magnetic separator body 1 between discharge port 1 22 and discharge port 23. Inclined plates 27 are fixedly installed at both ends of discharge port 1 22 and discharge port 23.
[0037] The use of triangular plate 24 and inclined plate 27 allows the material to fall more effectively from discharge port 1 22 and discharge port 23, thereby improving the efficiency of magnetic separation.
[0038] Working principle and usage process of this utility model:
[0039] In use, the material is poured into the feeding device 2 through the inlet 19, allowing it to fall into the circular trough 20 and be placed between the inner sides of the discharge plate 15. The servo motor 5 is started, causing the servo motor 5 to drive the rotating shaft 6 to rotate. The rotating shaft 6 drives the rotating shaft 13 to rotate via the belt 18. The rotating shaft 13 drives the connecting shaft 14 to rotate, causing the connecting shaft 14 to drive the discharge plate 15 to rotate. The material moves through the arc panel 16 to both ends of the discharge plate 15, so that it is evenly distributed between the inner sides of the discharge plate 15. When the material moves above the discharge port 21, it falls into the interior of the magnetic separator 1 due to gravity, thus achieving the effect of uniform feeding.
[0040] Start the servo motor 5, which drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the cylinder 7 to rotate. The material is attracted to the outer surface of the cylinder 7 by the permanent magnet 12. Since the fixing rod 9 is fixed inside the magnetic separator 1, the cylinder 7 continues to drive the material to rotate. When the material rotates to the left half of the magnetic separator 1, the material loses the magnetic force and falls into the discharge port 23, thus completing the magnetic separation operation.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A permanent magnet dry drum magnetic separator for ore beneficiation, comprising a magnetic separator body (1), characterized in that: A support rod (3) is fixedly installed below the magnetic separator body (1). A discharge port (21) is opened above the magnetic separator body (1). A feeding device (2) located above the discharge port (21) is fixedly installed above the magnetic separator body (1). A feed inlet (19) is opened above the feeding device (2). A circular groove (20) located below the feed inlet (19) is opened inside the feeding device (2). A connecting shaft (14) is rotatably installed inside the circular groove (20). A discharge plate (15) is evenly fixedly installed on the outside of the connecting shaft (14). An arc panel (16) is fixedly installed on the outside of the discharge plate (15). The discharge plate (15) corresponds to the inner wall of the circular groove (20). The circular groove (20) corresponds to the discharge port (21).
2. The permanent magnet dry drum magnetic separator for ore beneficiation according to claim 1, characterized in that: The magnetic separator body (1) has a rotating cylinder (7) inside. The front end of the cylinder (7) has a slot (8). The inner side of the magnetic separator body (1) is fixedly installed with a fixed rod (9) extending into the slot (8). The outer side of the fixed rod (9) is uniformly fitted with a fixed ring (10). The outer side of the fixed ring (10) is uniformly fitted with a connecting plate (11). The outer side of the connecting plate (11) is fixedly fitted with a permanent magnet (12). The permanent magnet (12) corresponds to the inner wall of the cylinder (7).
3. The permanent magnet dry drum magnetic separator for ore beneficiation according to claim 1, characterized in that: A platform (4) is fixedly installed on the left side of the magnetic separator body (1). A servo motor (5) is fixedly installed on the top of the platform (4). A rotating shaft (6) extending into the magnetic separator body (1) is fixedly installed on the inner side of the servo motor (5). The rotating shaft (6) is fixedly connected to the left end of the cylinder (7).
4. A permanent magnet dry drum magnetic separator for ore beneficiation according to claim 3, characterized in that: The outer side of the feeding device (2) is rotatably mounted with a second rotating shaft (13), which is fixedly connected to the left end of the connecting shaft (14). The second rotating shaft (13) is connected to the first rotating shaft (6) by a belt (18).
5. A permanent magnet dry drum magnetic separator for ore beneficiation according to claim 4, characterized in that: A fixing block (17) is fixedly installed on the outer side of the second rotating shaft (13), and the fixing block (17) is located on the outer side of the belt (18).
6. A permanent magnet dry drum magnetic separator for ore beneficiation according to claim 2, characterized in that: An installation plate (25) is fixedly installed on the inner side of the magnetic separator body (1), and a scraper (26) is fixedly installed on the inner side of the installation plate (25), the scraper (26) corresponding to the cylinder body (7).
7. A permanent magnet dry drum magnetic separator for ore beneficiation according to claim 2, characterized in that: The bottom of the magnetic separator body (1) is provided with a discharge port one (22) and a discharge port two (23) respectively. A triangular plate (24) is fixedly installed on the inner side of the magnetic separator body (1) between the discharge port one (22) and the discharge port two (23). Inclined plates (27) are fixedly installed at both ends of the discharge port one (22) and the discharge port two (23).