A magnetic separation device

Abstract

This utility model relates to the technical field of material sorting equipment, specifically disclosing a screening magnetic separation device, including a support frame; symmetrical support plates are arranged on the support frame; multiple positioning shafts are inserted between the support plates; by continuously pouring the mixture to be magnetically screened onto one end of a conveyor belt via a pipe or assembly line, and then driving two symmetrical sets of drive rollers and the conveyor belt to rotate in opposite directions under the drive of a drive motor, the mixture is attracted by the magnetic strips and moves upward along the left and right sides of the conveyor belt, and then falls onto the support frame for temporary collection. Non-magnetic particles move slowly downward between the two conveyor belts due to gravity, and are then discharged in a concentrated manner. Through the large area of ​​the magnetic strips combined with the large area of ​​the conveyor belt, a large number of metal particles can be magnetically screened at the same time, resulting in high magnetic screening efficiency, thus solving the problem of low efficiency caused by the small magnetic screening area of ​​existing magnetic separators.

Description

Technical Field

[0001] This utility model relates to the field of material sorting equipment technology, specifically a screening magnetic separation device. Background Technology

[0002] A magnetic separator is a mineral processing device that uses differences in magnetic force to separate magnetic and non-magnetic substances in particulate materials. It is widely used in mining, timber, kiln, chemical, food and other industries. Its main function is to remove unwanted ferromagnetic impurities from raw materials or separate valuable magnetic minerals.

[0003] Chinese utility model patent CN209753113U, published on December 10, 2019, discloses a magnetic separator, including a belt drive assembly, a vibration assembly, and a magnetic system. The belt drive assembly includes a first belt roller, a second belt roller, and a transmission belt. Both the first and second belt rollers are rotatably mounted on the vibration assembly, which drives the transmission belt to vibrate. The transmission belt includes an upper belt body and a lower belt body. The magnetic system is located below the upper belt body and is used to generate a magnetic field passing through the upper belt body. The upper belt body is inclined relative to the horizontal plane, and the transmission belt moves from the lower end to the higher end of the upper belt body. This magnetic separator can separate magnetic minerals from non-magnetic minerals. The vibration of the transmission belt can fully loosen the minerals, reducing inclusions. Under the combined action of vibration, magnetic force, and gravity, the separation effect is better, and the magnetic separation efficiency is higher.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: existing magnetic separators, in conjunction with vibrating conveyor belts, achieve continuous magnetic screening and recovery of magnetic particles from mineral particles. However, in this way, the mixture accumulated on the conveyor belt needs to be thin to achieve effective screening, which results in insufficient overall magnetic screening efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that existing magnetic separators, in conjunction with vibrating conveyor belts, achieve continuous magnetic screening and recovery of magnetic particles from mineral particles. However, in this method, the mixture piled on the conveyor belt needs to be thin to achieve effective screening, resulting in insufficient overall magnetic screening efficiency. The invention provides a screening magnetic separation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention discloses a screening and magnetic separation device, comprising a support frame; symmetrically arranged support plates on the support frame; multiple positioning shafts inserted between the support plates; symmetrically sleeved protective plates on the positioning shafts; an inner support cover and a drive roller sleeved on the positioning shafts; a drive motor fixedly connected to the end of the positioning shafts; multiple magnetic strips fixedly connected to the inner surface of the inner support cover through slots; a vibration motor fixedly connected to the inner surface of the inner support cover; and a conveyor belt sleeved between the inner support cover and the drive roller.

[0008] Furthermore, an output cover is fixedly attached to the support plate by a slot.

[0009] Furthermore, the output cover has slots on which insert plates can be slidably inserted.

[0010] Furthermore, the output cover is threadedly connected to the corresponding insertion hole of the insert plate with fasteners.

[0011] Furthermore, a first shaft is inserted between the support plates; a collection box is sleeved on the first shaft.

[0012] Furthermore, a pull plate is sleeved on the first shaft.

[0013] The screening and magnetic separation device provided by this utility model has the following beneficial effects:

[0014] 1. This utility model involves continuously pouring the mixture to be magnetically screened onto one end of a conveyor belt via a pipe or assembly line. Driven by a drive motor, two symmetrical sets of drive rollers and the conveyor belt rotate in opposite directions. This causes the mixture to be attracted by the magnetic strips and move upward along the left and right sides of the conveyor belt, then fall onto a support frame for temporary collection. Non-magnetic particles move slowly downward between the two conveyor belts due to gravity and are then discharged. By using a large-area magnetic strip in conjunction with a large-area conveyor belt, a large number of particles can be contacted simultaneously, resulting in a large number of metal particles that can be magnetically screened at the same time. This leads to high efficiency in magnetic screening and solves the problem of low efficiency caused by the small magnetic screening area in existing magnetic separators.

[0015] 2. This utility model, by positioning the collection box along the downward tangent of the conveyor belt, can collect particles that have lost their magnetic attraction and are fixed along the conveyor belt. This allows for the initial collection of large, heavy particles, enabling preliminary grading and screening of particles of different weights and sizes. This solves the problem that existing magnetic separators cannot further screen the magnetic particles after preliminary screening. Attached Figure Description

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0017] Figure 1This is a schematic diagram of the first isometric structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the inclined half-section structure of this utility model.

[0020] The following are the labels in the diagram: 1. Support frame; 2. Support plate; 3. Positioning shaft; 4. Protective plate; 5. Drive motor; 6. Inner support cover; 7. Drive roller; 8. Magnetic strip; 9. Vibration motor; 10. First shaft; 11. Collection box; 12. Pull plate; 13. Second shaft; 14. Collection plate; 15. Third shaft; 16. Conveyor belt; 17. Output cover; 18. Insert plate; 19. Fastener. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0024] Please see Figure 1-3As shown, a magnetic separation screening device includes a support frame 1; support plates 2 are symmetrically arranged on the support frame 1; multiple positioning shafts 3 are inserted between the support plates 2; protective plates 4 are symmetrically sleeved on the positioning shafts 3; an inner support cover 6 and a drive roller 7 are sleeved on the positioning shafts 3; a drive motor 5 is fixedly connected to the end of the positioning shafts 3; multiple magnetic strips 8 are fixedly connected to the inner surface of the inner support cover 6; a vibration motor 9 is fixedly connected to the inner surface of the inner support cover 6; the inner support cover 6 and the drive roller 7 are connected to a conveyor belt 16; during operation, the mixture to be magnetically screened is continuously poured onto one end of the conveyor belt 16 using a pipe or assembly line. Then, driven by the drive motor 5, the two sets of symmetrical drive rollers 7 and conveyor belts 16 rotate in opposite directions, so that the mixture is attracted by the magnetic strips 8 and moves upward along the conveyor belts 16, and then falls onto the support frame 1 for temporary collection. Non-magnetic particles move slowly downward between the two conveyor belts 16 under the influence of gravity, and are then discharged. Through the large area of ​​the magnetic strips 8 and the large area of ​​the conveyor belts 16, a large amount of mixture can be contacted at the same time, so that more metal particles can be magnetically screened at the same time, resulting in high magnetic screening efficiency. This solves the problem of low efficiency caused by small magnetic screening area in existing magnetic separators.

[0025] The support plate 2 has a slotted and fixed output cover 17; during operation, the remaining non-target magnetic particles can be collected through the external pipe of the output cover 17.

[0026] The output cover 17 has slots on which insert plates 18 can be slidably inserted. During operation, by adjusting the height of the insert plates 18 inside the output cover 17, the area of ​​the slots on the output cover 17 and the support plate 2 can be controlled, thereby controlling the discharge speed of the remaining non-magnetic particles and further improving the degree of magnetic screening.

[0027] The output cover 17 has a corresponding hole for the insert plate 18 with a threaded fastener 19. During operation, by rotating the fastener 19 to contact the insert plate 18, the position of the insert plate 18 inside the output cover 17 can be fixed. This allows for arbitrary adjustment of the position of the insert plate 18 inside the output cover 17, controlling the discharge speed of the remaining non-magnetic particles, thereby further improving the degree of magnetic screening.

[0028] A first shaft 10 is inserted between the support plates 2; a collection box 11 is sleeved on the first shaft 10; during operation, the collection box 11 is located in the downward tangential direction of the conveyor belt 16, so that particles that have lost the magnetic attraction and fixation of the magnetic strip 8 along the conveyor belt 16 can be collected, thereby achieving the initial collection of large, heavy particles, which can achieve preliminary grading and screening of particles of different weights and sizes, and solves the problem that existing magnetic separators cannot further screen the magnetic particles after preliminary screening.

[0029] A pull plate 12 is sleeved on the first shaft 10; a second shaft 13 is inserted into the lower end of the pull plate 12; a collecting plate 14 is sleeved on the second shaft 13; a third shaft 15 is inserted into the other end of the collecting plate 14; the third shaft 15 is inserted between the support plates 2; during operation, the pull plate 12, the second shaft 13, the collecting plate 14 and the third shaft 15 are connected between the support plates 2, so that the collecting plate 14 is suspended and fixed, thereby collecting the magnetic particles that vibrate and fall from the conveyor belt 16, which is convenient for quantitative collection.

[0030] Using the above scheme, in use, the mixture to be magnetically screened is continuously poured onto one end of the conveyor belt 16 via a pipe or assembly line. Driven by the drive motor 5, the two symmetrical sets of drive rollers 7 and the conveyor belt 16 rotate in opposite directions. This causes the mixture to be magnetically attracted by the magnetic strips 8 and move upwards along the conveyor belt 16, then fall onto the support frame 1 for temporary collection. Non-magnetic particles are slowly moved downwards by gravity between the two conveyor belts 16 and are then discharged. The large area of ​​the magnetic strips 8, combined with the large area of ​​the conveyor belt 16, allows for simultaneous contact with a large quantity of the mixture, resulting in a large number of metal particles that can be magnetically screened simultaneously, leading to high magnetic screening efficiency. This solves the problem of low efficiency caused by the small magnetic screening area in existing magnetic separators. The remaining non-magnetic particles can be collected by connecting a pipe to the output cover 17. The height of the insert plate 18 within the output cover 17 is adjusted to control the slots on the output cover 17 and the support plate 2. The area is controlled to regulate the discharge speed of the remaining non-magnetic particles, thereby further improving the degree of magnetic screening. By rotating the fastener 19 to abut against the insert plate 18, the position of the insert plate 18 inside the output cover 17 can be fixed, allowing the position of the insert plate 18 inside the output cover 17 to be adjusted arbitrarily, controlling the discharge speed of the remaining non-magnetic particles, thereby further improving the degree of magnetic screening. The collection box 11 is located in the downward tangential direction of the conveyor belt 16, allowing the collection of particles that have lost the magnetic attraction and fixation of the magnetic strip 8 along the conveyor belt 16, thereby achieving the initial collection of large, heavy particles, enabling preliminary grading and screening of particles of different weights and sizes, solving the problem that existing magnetic separators cannot further screen the magnetic particles after preliminary screening. The pull plate 12, the second shaft 13, the collection plate 14, and the third shaft 15 are connected between the support plate 2, so that the collection plate 14 is suspended and fixed, thereby collecting the magnetic particles that vibrate and fall from the conveyor belt 16, facilitating quantitative collection.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A magnetic separation device for screening, characterized in that; It includes a support frame (1); the support frame (1) is symmetrically provided with support plates (2); multiple positioning shafts (3) are inserted between the support plates (2); protective plates (4) are symmetrically sleeved on the positioning shafts (3); an inner support cover (6) and a drive roller (7) are sleeved on the positioning shafts (3); a drive motor (5) is fixed to the end of the positioning shaft (3); multiple magnetic strips (8) are slotted and fixed to the inner surface of the inner support cover (6); a vibration motor (9) is fixed to the inner surface of the inner support cover (6); the inner support cover (6) and the drive roller (7) are fed to a conveyor belt (16) sleeved on.

2. The screening and magnetic separation device according to claim 1, characterized in that: The support plate (2) has a slotted and fixed output cover (17).

3. The screening and magnetic separation device according to claim 2, characterized in that: The output cover (17) has a slotted opening on which a plug plate (18) is slidably inserted.

4. The screening and magnetic separation device according to claim 3, characterized in that: The output cover (17) has a corresponding hole in the insert plate (18) with a fastener (19) threaded in.

5. The screening and magnetic separation device according to claim 4, characterized in that: A first shaft (10) is inserted between the support plates (2); a collection box (11) is sleeved on the first shaft (10).

6. The screening and magnetic separation device according to claim 5, characterized in that: A pull plate (12) is sleeved on the first shaft (10).

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