Permanent magnet roller

Abstract

The utility model relates to the technical field of magnetic separation, in particular to a permanent magnetic drum which comprises a fixedly arranged inner drum body and an outer drum body rotationally arranged outside the inner drum body, a C-shaped magnet is installed on the inner drum body and composed of a plurality of electromagnets capable of working independently, the electromagnets are arranged in the length direction of the inner drum body, and the outer drum body is arranged in the length direction of the inner drum body. The area, covered by the C-shaped magnets, of the outer cylinder is a magnetic attraction area, the area, covered by the inner cylinder, of the outer cylinder is a discharging area, a material collecting assembly is arranged at the junction of the magnetic attraction area and the discharging area, the material collecting assembly is fixed to the inner cylinder through a support and comprises a material guiding plate and a material collecting box, one side of the material guiding plate is fixedly connected with the material collecting box, and the other side of the material guiding plate is fixedly connected with the material collecting box. The other side of the material collecting box inclines towards the junction of the magnetic attraction area and the material falling area, and the material collecting box is fixed to the inner barrel through a support. According to the permanent magnet roller, the magnet is arranged to be C-shaped so as to reduce cost, and the C-shaped magnet is divided into a plurality of magnetic blocks which can be independently electrified for magnetic conduction so as to reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation technology, and in particular to a permanent magnet drum. Background Technology

[0002] In industrial production, material screening and separation are crucial steps. Permanent magnet drums, widely used in mining, food processing, chemical industries, and many other fields, significantly impact the entire production process due to their performance and cost.

[0003] Traditional permanent magnet rollers typically have a magnetic attraction structure around the roller. During the roller's rotation, the magnetic attraction structure separates magnetic materials. However, since the magnetic material often travels less than one revolution around the outside of the roller, some of the magnetic attraction structure does not come into contact with the magnetic material during its movement. Removing this part of the magnetic attraction structure can effectively reduce costs. Utility Model Content

[0004] To address the issues of high cost and low utilization rate associated with the common use of annular magnets in existing permanent magnet rollers, this invention provides a permanent magnet roller in which the magnet is C-shaped and divided into several individually energized magnetic blocks. Compared to annular magnets, this design reduces costs and energy consumption.

[0005] This invention provides a permanent magnet roller, comprising a fixed inner cylinder and an outer cylinder rotatably disposed outside the inner cylinder. A C-shaped magnet is mounted on the inner cylinder, and the C-shaped magnet is composed of several independently operable electromagnets. By replacing the traditional annular magnet with a C-shaped magnet, the magnetic attraction area of ​​the C-shaped magnet is adapted to the material movement area, reducing the need for additional magnets and lowering costs.

[0006] Furthermore, several electromagnets are arranged along the length of the inner cylinder, with 5-8 electromagnets in total. The switching on and off of the electromagnets can be controlled according to the conveying width of the material.

[0007] Furthermore, the area of ​​the outer cylinder covered by the C-shaped magnet is the magnetic attraction zone, and the area of ​​the outer cylinder covered by the inner cylinder is the material discharge zone. A material collection assembly is provided at the boundary between the magnetic attraction zone and the material discharge zone, and the material collection assembly is fixed to the inner cylinder by a bracket. The separated magnetic material is collected by the material collection assembly located at the boundary.

[0008] Furthermore, the material collection assembly includes a guide plate and a collection box. One side of the guide plate is fixedly connected to the collection box, and the other side is inclined towards the boundary between the magnetic attraction area and the material drop area. The collection box is fixed to the inner cylinder by a bracket. Magnetic materials are guided into the collection box through the guide plate.

[0009] Furthermore, the support includes a main support and connecting arms, both of which are U-shaped. The two end plates of the main support are fixed to the two ends of the inner cylinder, and connecting arms extend from the two end plates of the main support, enclosing the aggregate assembly within the connecting arms. The connecting arms ensure that the aggregate assembly is stably mounted on the inner cylinder.

[0010] Furthermore, the collection box has a discharge port at one end, and the bottom of the collection box slopes downwards towards the discharge port. Magnetic materials entering the collection box fall freely along the sloped bottom, and a container can be placed below the discharge port to collect the materials.

[0011] Furthermore, the inner cylinder is also equipped with a drive assembly at its end for driving the outer cylinder to rotate, and the output end of the drive assembly is connected to the outer cylinder for transmission. The drive assembly drives the outer cylinder to rotate around the inner cylinder.

[0012] Furthermore, the drive assembly includes a drive motor and a gear fixedly mounted on the output shaft of the drive motor. A gear ring adapted to the gear is fixedly mounted on the inner side of the outer cylinder. The rotation of the outer cylinder is achieved through the cooperation of the gear and the gear ring.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model provides a permanent magnet roller, which improves the traditional ring magnet into a C-shape, so that the magnetic attraction area of ​​the C-shaped magnet is adapted to the moving area of ​​the magnetic material; and by setting several independently working electromagnets, it is easy to energize the electromagnets as needed according to the conveying width of the magnetic material, which can greatly reduce costs and energy consumption. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a diagram of the external structure of the permanent magnet drum;

[0017] Figure 2 This is a diagram of the internal structure of a permanent magnet drum;

[0018] Figure 3 This is a structural diagram of the driving component;

[0019] Figure 4 This is a structural diagram of the material collection assembly;

[0020] In the diagram: 1. Inner cylinder, 2. Outer cylinder, 21. Magnetic attraction area, 22. Material dropping area, 3. C-shaped magnet, 31. Electromagnet, 4. Guide plate, 5. Collection box, 51. Discharge port, 6. Main support, 7. Connecting arm, 8. Drive motor, 9. Gear, 10. Gear ring. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] To reduce investment costs, a permanent magnet roller is designed, such as... Figure 1 As shown, the device includes a fixed inner cylinder 1 and an outer cylinder 2 rotatably disposed outside the inner cylinder 1. When the material passes under the outer cylinder 2, the magnetic material in the material will be attracted to the outer surface of the outer cylinder 2 by the magnetic attraction of the inner cylinder 1, thus completing the screening of the magnetic material in the material. When the outer cylinder 2 rotates, it will drive the magnetic material on its outer side to move. When the magnetic material moves to a position where it is not covered by magnetism, the magnetic material is no longer subject to magnetic attraction and can automatically fall off the outer cylinder 2, thus completing the discharge of the magnetic material.

[0023] like Figure 2 As shown, the core of this technical solution lies in the fact that a C-shaped magnet 3 is installed on the inner cylinder 1, and the inner cylinder 1 and the C-shaped magnet 3 constitute a complete cylinder. The C-shaped magnet 3 is composed of several independently working electromagnets 31. The C-shaped magnet 3 is set according to the stroke of the magnetic material on the outside of the outer cylinder 2, which can reduce the setting of unnecessary and unused magnets and reduce costs.

[0024] Several electromagnets 31 are arranged along the length of the inner cylinder 1, with 5-8 electromagnets 31 in total. The opening state of the electromagnets 31 is controlled according to the conveying width of the material on the lower side of the outer cylinder 2. The electromagnet 31 opposite to the material is in the open state, while the rest of the electromagnets 31 are in the closed state. Compared with all the electromagnets 31 being open, the energy consumption of the electromagnets 31 can be effectively reduced.

[0025] like Figure 3 As shown, the inner cylinder 1 is also equipped with a drive assembly at its end for driving the outer cylinder 2 to rotate. The output end of the drive assembly is connected to the outer cylinder 2 for transmission. Specifically, the drive assembly includes a drive motor 8 and a gear 9 fixedly mounted on the output shaft of the drive motor 8. A gear ring 10 adapted to the gear 9 is fixedly mounted on the inner side of the outer cylinder 2. Starting the drive motor 8 will drive the gear 9 to rotate, causing the gear 9 to push the gear ring 10, thus causing the outer cylinder 2 to rotate outside the inner cylinder 1.

[0026] The area covered by the C-shaped magnet 3 in the outer cylinder 2 is the magnetic attraction area 21, and the area covered by the inner cylinder 1 in the outer cylinder 2 is the magnetic material discharge area 22. A material collection assembly is provided at the junction of the magnetic attraction area 21 and the magnetic material discharge area 22, and the material collection assembly is fixed to the inner cylinder 1 by a bracket. The material collection assembly is used to separate magnetic materials on the surface of the outer cylinder 2.

[0027] like Figure 4 As shown, the material collection assembly includes a guide plate 4 and a collection box 5. One side of the guide plate 4 is fixedly connected to the collection box 5, and the other side is inclined towards the junction of the magnetic attraction area 21 and the magnetic dropping area 22. The collection box 5 is fixed to the inner cylinder 1 by a bracket. The guide plate 4 can guide the magnetic material separated from the surface of the outer cylinder 2 into the collection box 5. To facilitate discharge, the end of the collection box 5 has a discharge port 51. The bottom of the collection box 5 is inclined downwards towards the discharge port 51. The magnetic material falling into the collection box 5 slides down the inclined bottom of the box. A collection box can be placed below the discharge port 51. In order not to affect the rotation of the outer cylinder 2, there is a gap between the end of the guide plate 4 and the outer cylinder 2. They do not contact each other, but under the inertia of the rotation of the outer cylinder 2, the magnetic material on the surface of the outer cylinder 2 can still fall smoothly onto the guide plate 4.

[0028] In order to stably install the aggregate assembly on the inner cylinder 1, the support includes a main support 6 and a connecting arm 7. Both the main support 6 and the connecting arm 7 are U-shaped. The two end plates of the main support 6 are fixed to the two ends of the inner cylinder 1. The connecting arm 7 extends from the two end plates of the main support 6 and surrounds the aggregate assembly inside the connecting arm 7.

[0029] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. A permanent-magnetic drum comprising an inner cylinder (1) fixedly arranged and an outer cylinder (2) rotatably arranged outside the inner cylinder (1), characterized in that: The inner cylinder (1) is provided with a C-shaped magnet (3) which is composed of several independently working electromagnets (31).

2. A permanent-magnetic cylinder according to claim 1, characterized in that The electromagnets (31) are arranged along the length direction of the inner cylinder (1) and are provided with 5-8 electromagnets.

3. A permanent-magnetic cylinder according to claim 1, characterized in that: The area of the outer cylinder (2) covered by the C-shaped magnet (3) is a magnetic attraction area (21), the area of the outer cylinder (2) covered by the inner cylinder (1) is a magnetic material falling area (22), the junction of the magnetic attraction area (21) and the magnetic material falling area (22) is provided with a material collecting assembly which is fixed to the inner cylinder (1) by a support.

4. A permanent-magnet cylinder according to claim 3, characterized in that: The material collecting assembly comprises a material guiding plate (4) and a material collecting box (5), one side of the material guiding plate (4) is fixedly connected with the material collecting box (5), the other side is inclined towards the junction of the magnetic attraction area (21) and the magnetic material falling area (22), and the material collecting box (5) is fixed to the inner cylinder (1) by a support.

5. A permanent-magnet cylinder according to claim 4, characterized in that: The support comprises a main support (6) and a connecting arm (7), the main support (6) and the connecting arm (7) are both in the shape of a "V", the two end plates of the main support (6) are fixed to the two ends of the inner cylinder (1), the connecting arm (7) is extended from the two end plates of the main support (6) and surrounds the material collecting assembly.

6. A permanent-magnet cylinder according to claim 5, characterized in that: The material collecting box (5) is provided with a discharging port (51) at one end, and the bottom of the material collecting box (5) is inclined downward towards the discharging port (51).

7. A permanent-magnet cylinder according to claim 5, characterized in that: The end of the inner cylinder (1) is further provided with a driving assembly for driving the rotation of the outer cylinder (2), and the output end of the driving assembly is in transmission connection with the outer cylinder (2).

8. A permanent-magnet cylinder according to claim 7, characterized in that: The driving assembly comprises a driving motor (8) and a mesh gear (9) fixedly arranged on the output shaft of the driving motor (8), and the inner side of the outer cylinder (2) is fixedly provided with a mesh gear ring (10) matched with the mesh gear (9).

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