Dust collecting device of dry magnetic separator

By using a dust collection device in a dry magnetic separator, dust is extracted through an air pump and the negative pressure zone of the suction plate, combined with cleaning by a brush roller. This solves the problem of dust adhesion affecting the magnetic separation effect and improves the screening efficiency of the magnetic separator.

CN224195490UActive Publication Date: 2026-05-05SHANDONG ANHE MAGNETOELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ANHE MAGNETOELECTRONIC TECH CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing dry magnetic separators, dust and impurities adhere to the permanent magnet drum during use, causing a decrease in magnetic force and affecting the screening effect.

Method used

Design a dust collection device for a dry magnetic separator. A negative pressure zone is formed by an air pump and an air suction plate to extract dust from the surface of the permanent magnet drum. At the same time, a brush roller is used to clean the dust. A partition and a magnetic structure are combined to prevent dust from falling.

Benefits of technology

It effectively reduces dust adhesion to the surface of the permanent magnet drum, maintains the screening effect of magnetic materials, and improves the working efficiency of the magnetic separator.

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Abstract

The utility model belongs to the technical field of ore processing, and particularly relates to a dust collecting device of a dry magnetic separator, which comprises supporting legs, a pair of supporting legs is fixedly connected with a motor, the end part of the motor is fixedly connected with a rotating shaft, a connecting plate is fixedly connected between the pair of supporting legs, the connecting plate is fixedly connected with an air extracting pump, and the air extracting pump is fixedly connected with the rotating shaft. A connecting pipe is communicated to the air extracting pump, a collecting box is communicated to the end of the connecting pipe, an air extracting pipe is communicated to the air extracting pump, the air extracting pipe and the connecting plate are arranged in a penetrating mode, an air suction plate is communicated to the air extracting pipe, and the air extracting pump is communicated with the air extracting pipe which is communicated with the air suction plate. When the permanent magnet roller rotates, the air pump is started to form a negative pressure area at the air suction plate, so that dust carried by the permanent magnet roller during working and dust which is attached to the surface of the permanent magnet roller and is easy to fall off can be extracted and collected; the situation that the adsorption capacity of the permanent magnet roller to magnetic substances is reduced due to the fact that dust is attached to the surface of the permanent magnet roller in the using process is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of ore processing technology, specifically a dust collection device for a dry magnetic separator. Background Technology

[0002] Dry magnetic separators are mainly used for separating dry magnetic minerals. They require the minerals to be separated to be in a dry state, and the particles to be able to move freely and be in an independent state. Otherwise, the magnetic separation effect may be affected. Dry magnetic separators are widely used in mining, metallurgy, chemical industry, building materials and other fields. They are mainly used for ore separation, tailings reprocessing, scrap metal recycling, and iron removal from building materials.

[0003] The working principle of a dry magnetic separator is mainly based on the combined action of magnetic and mechanical forces. When the ore being processed passes through the magnetic field of the separator, under the influence of magnetic and mechanical forces, ore particles with different magnetic properties will move along different paths, thereby achieving the purpose of separating magnetic and non-magnetic substances in the ore.

[0004] Existing dry magnetic separators typically classify and screen materials by changing magnetic force. During the screening of raw materials, a large amount of dust and impurities are present. These impurities adhere to the permanent magnet drum. Through long-term use and observation, it has been found that when a large amount of dust adheres to the permanent magnet drum, the magnetic force of the permanent magnet drum decreases, making it difficult to screen the raw materials. Therefore, a dust collection device for dry magnetic separators is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a dust collection device for dry magnetic separators.

[0006] The technical solution adopted by this utility model to solve its technical problem is a dry magnetic separator dust collection device, including support legs, a motor fixedly connected to a pair of support legs, a rotating shaft fixedly connected to the end of the motor, the rotating shaft and the support legs being through-connected and rotatably connected, a permanent magnet roller fixedly connected between the pair of rotating shafts, a feed hopper fixedly connected between the pair of support legs, a storage hopper directly fixedly connected to the pair of support legs, the feed hopper and the storage hopper being connected, a coarse material hopper and a fine material hopper being opened on the storage hopper, support columns fixedly connected to the support legs, and a connecting plate fixedly connected between the pair of support columns. An air pump is fixedly connected to the connecting plate, and a connecting pipe is connected to the air pump. A collection box is connected to the end of the connecting pipe, and an air extraction pipe is connected to the air pump. The air extraction pipe and the connecting plate are connected through each other, and an air suction plate is connected to the air extraction pipe. By connecting the air pump to the air extraction pipe and the air suction plate to the air extraction pipe, when the permanent magnet drum rotates, the air pump is turned on to form a negative pressure zone at the air suction plate. This can extract and collect the dust brought up by the permanent magnet drum during operation and the easily detachable dust adhering to the surface of the permanent magnet drum, reducing the situation where dust adheres to the surface of the permanent magnet drum during use, thus reducing the permanent magnet drum's ability to attract magnetic materials.

[0007] Preferably, a fixing block is fixedly connected to the support column, a first pulley is rotatably connected between a pair of fixing blocks, a second pulley is fixedly connected to a pair of rotating shafts, a connecting belt is provided between the first pulley and the second pulley, and a brush roller is fixedly connected between a pair of first pulleys. By fixing the brush roller between a pair of first pulleys, the first pulley rotates when the rotating shaft rotates, and the first pulley rotates, driving the brush roller to rotate. The rotating brush roller contacts the permanent magnet drum to clean the dust and impurities attached to the surface of the permanent magnet drum, which can further reduce the situation where dust and impurities attached to the surface of the permanent magnet drum affect the permanent magnet drum's screening of magnetic materials.

[0008] Preferably, a cleaning plate is fixed between a pair of support columns, and the cleaning plate and the brush roller are correspondingly arranged. By fixing the cleaning plate between a pair of support columns, when the brush roller rotates, the brush roller and the surface of the cleaning plate come into contact, which can thoroughly clean the surface of the brush roller and reduce the situation where dust adheres to the surface of the brush roller during long-term use, causing the brush roller's ability to clean dust from the surface of the permanent magnet roller to decrease.

[0009] Preferably, a partition is hinged to the inner wall of the suction plate. The partition is located between the permanent magnet drum and the suction plate. By hinged to the partition on the inner wall of the suction plate, the suction plate can be sealed when the suction pump stops working, reducing the possibility of dust inside the suction pipe falling back onto the surface of the permanent magnet drum due to the reduced suction force when the suction pump stops working during use.

[0010] Preferably, multiple elastic ropes are fixedly connected to the partition, and the other end of each elastic rope is fixedly connected to the air intake plate. By fixing multiple elastic ropes to the partition, the partition can be quickly reset during use, thereby achieving rapid sealing of the air intake plate and reducing the occurrence of dust falling from the air intake plate.

[0011] Preferably, a first magnet is fixedly connected to the partition, and a second magnet is fixedly connected to the suction plate. The first magnet and the second magnet are arranged correspondingly. By fixing the first magnet to the partition and the second magnet to the suction plate, the partition is fixed when the first magnet and the second magnet are in contact, which can reduce the situation where the partition shakes during use, causing dust to fall from the suction plate.

[0012] The advantages of this utility model are:

[0013] This utility model provides a dust collection device for a dry magnetic separator. By connecting an air extraction pipe to an air extraction pump and an air suction plate to the air extraction pipe, when the permanent magnet drum rotates, the air extraction pump is turned on to form a negative pressure zone at the air suction plate. This can extract and collect the dust brought up by the permanent magnet drum during operation and the easily detachable dust adhering to the surface of the permanent magnet drum, reducing the situation where dust adheres to the surface of the permanent magnet drum during use, thus reducing the permanent magnet drum's ability to adsorb magnetic materials.

[0014] This utility model provides a dust collection device for a dry magnetic separator. A brush roller is fixed between a pair of first pulleys. When the shaft rotates, the first pulleys rotate, which in turn drives the brush roller to rotate. The rotating brush roller contacts the permanent magnet drum to clean the dust and impurities attached to the surface of the permanent magnet drum. This can further reduce the impact of dust and impurities on the permanent magnet drum surface on the screening of magnetic materials. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only 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 schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the air intake plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first pulley in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the brush roller in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the partition plate of this utility model.

[0021] In the diagram: 1. Support leg; 11. Motor; 12. Rotating shaft; 13. Permanent magnet roller; 14. Feed hopper; 15. Storage hopper; 16. Coarse material hopper; 17. Fine material hopper; 18. Support column; 19. Connecting plate; 110. Air pump; 111. Connecting pipe; 112. Collection box; 113. Air extraction pipe; 114. Suction plate; 2. Fixing block; 21. First pulley; 22. Second pulley; 23. Connecting belt; 24. Brush roller; 3. Cleaning plate; 4. Partition plate; 5. Elastic rope; 6. First magnet; 61. Second magnet. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] Please see Figures 1-5As shown, a dry magnetic separator dust collection device includes support legs 1, a motor 11 fixedly connected to a pair of support legs 1, a rotating shaft 12 fixedly connected to the end of the motor 11, the rotating shaft 12 and the support legs 1 being through-connected and rotatably connected, a permanent magnet drum 13 fixedly connected between the pair of rotating shafts 12, a feed hopper 14 fixedly connected between the pair of support legs 1, a storage hopper 15 directly fixedly connected to the pair of support legs 1, the feed hopper 14 and the storage hopper 15 being connected, a coarse material hopper 16 and a fine material hopper 17 opened on the storage hopper 15, support columns 18 fixedly connected to the support legs 1, and a connecting plate 1 fixedly connected between the pair of support columns 18. 9. A vacuum pump 110 is fixedly connected to the connecting plate 19. A connecting pipe 111 is connected to the vacuum pump 110. A collection box 112 is connected to the end of the connecting pipe 111. A vacuum pipe 113 is connected to the vacuum pump 110. The vacuum pipe 113 and the connecting plate 19 are connected through each other. A suction plate 114 is connected to the suction pipe 113. When it is necessary to screen the raw materials, the raw materials are put into the feed hopper 14 and fall into the storage hopper 15. Then, the permanent magnet roller 13 is turned on. When the permanent magnet roller 13 is turned on, it generates magnetic force to attract the raw materials. At this time, a pair of motors 11 are turned on. When the motors 11 are turned on, they drive the rotor fixedly connected to their output end. When shaft 12 rotates, it drives permanent magnet drum 13 to rotate. When permanent magnet drum 13 rotates to a designated position, its magnetic force decreases. At this time, magnetic material detaches from the surface of permanent magnet drum 13 and falls into the fine hopper 17 on the storage hopper 15. Non-magnetic material falls into the coarse hopper 16 on the storage hopper 15, thus achieving the screening of materials. When magnetic material detaches from the surface of permanent magnet drum 13, dust and impurities will adhere to the surface of permanent magnet drum 13. At this time, the air pump 110 is turned on. When the air pump 110 is turned on, the air in the air extraction pipe 113 is drawn into the collection box 112 through the air pump 110. At this time, a negative pressure zone is formed at the suction plate 114. When the permanent magnet roller 13 rotates to the designated position, the dust and impurities attached to the permanent magnet roller 13 are extracted by the suction plate 114. The air mixed with the dust and impurities after extraction enters the collection box 112 and is collected. The suction pipe 113 is connected to the suction pump 110, and the suction plate 114 is connected to the suction pipe 113. When the permanent magnet roller 13 rotates, the suction pump 110 is turned on to form a negative pressure zone at the suction plate 114. This can extract and collect the dust brought up by the permanent magnet roller 13 during operation and the easily detachable dust attached to the surface of the permanent magnet roller 13, reducing the situation where dust adheres to the surface of the permanent magnet roller 13 during use, which reduces the adsorption capacity of the permanent magnet roller 13 for magnetic materials.

[0024] Please see Figure 2As shown, a fixing block 2 is fixedly connected to the support column 18. A first pulley 21 is rotatably connected between a pair of fixing blocks 2. A second pulley 22 is fixedly connected to a pair of rotating shafts 12. A connecting belt 23 is provided between the first pulley 21 and the second pulley 22. A brush roller 24 is fixedly connected between a pair of first pulleys 21. When the motor 11 is turned on, it drives the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, it drives the second pulley 22 fixedly connected to the rotating shaft 12 to rotate. When the second pulley 22 rotates, it drives the first pulley 21 to rotate through the connecting belt 23. When the first pulley 21 rotates, it drives the brush roller 24 to rotate. When rotating, the brush roller 24 contacts the surface of the permanent magnet drum 13. At this time, the brush roller 24 cleans the dust that is difficult to remove from the permanent magnet drum 13. The cleaned dust and impurities are adsorbed and cleaned by the suction plate 114. The brush roller 24 is fixed between a pair of first pulleys 21. When the rotating shaft 12 rotates, it drives the first pulleys 21 to rotate. When the first pulleys 21 rotate, they drive the brush roller 24 to rotate. The rotating brush roller 24 contacts the permanent magnet drum 13 to clean the dust and impurities attached to the surface of the permanent magnet drum 13. This can further reduce the situation where the dust and impurities attached to the surface of the permanent magnet drum 13 affect the permanent magnet drum 13's screening of magnetic materials.

[0025] Please see Figure 3 As shown, a cleaning plate 3 is fixed between a pair of support columns 18. The cleaning plate 3 and the brush roller 24 are correspondingly arranged. When the brush roller 24 rotates, it cleans the dust and impurities attached to the surface of the permanent magnet roller 13. When the dust and impurities fall off the surface of the permanent magnet roller 13, some of the dust and impurities will adhere to the surface of the brush roller 24. When the brush roller 24 rotates, the brush roller 24 and the cleaning plate 3 come into contact. At this time, the cleaning plate 3 cleans the dust attached to the surface of the brush roller 24. By fixing the cleaning plate 3 between a pair of support columns 18, the brush roller 24 and the surface of the cleaning plate 3 come into contact when the brush roller 24 rotates, the surface of the brush roller 24 can be cleaned thoroughly, reducing the situation where dust adheres to the surface of the brush roller 24 during long-term use, which leads to a decrease in the ability of the brush roller 24 to clean the dust on the surface of the permanent magnet roller 13.

[0026] Please see Figure 4As shown, a partition 4 is hinged to the inner wall of the suction plate 114. The partition 4 is located between the permanent magnet roller 13 and the suction plate 114. When the suction pump 110 is turned on, a negative pressure zone is formed at the suction plate 114. At this time, the partition 4 moves closer to the side wall of the suction plate 114. When the partition 4 moves closer to the side wall of the suction plate 114, the suction plate 114 is opened. At this time, the suction plate 114 adsorbs dust and impurities on the permanent magnet roller 13. When the suction pump 110 is turned off, due to... When the suction force at the suction plate 114 weakens, the partition 4 falls towards the permanent magnet drum 13. When the partition 4 falls to the designated position, it seals the suction plate 114. By hinged to the inner wall of the suction plate 114, the suction plate 114 can be sealed when the air pump 110 stops working, reducing the chance that dust inside the suction pipe 113 will fall back onto the surface of the permanent magnet drum 13 when the air pump 110 stops working during use due to the reduced suction force.

[0027] Please see Figure 5 As shown, multiple elastic ropes 5 are fixedly connected to the partition 4. The other end of each elastic rope 5 is fixedly connected to the suction plate 114. When the partition 4 is opened, the elastic ropes 5 are stretched. When the suction pump 110 stops working, the elastic ropes 5 pull the partition 4 back to its original position under their own elastic force. By fixing multiple elastic ropes 5 to the partition 4, the partition 4 can be quickly reset during use, thereby achieving rapid sealing of the suction plate 114 and reducing the occurrence of dust falling from the suction plate 114.

[0028] Please see Figure 5 As shown, a first magnet 6 is fixedly connected to the partition 4, and a second magnet 61 is fixedly connected to the suction plate 114. The first magnet 6 and the second magnet 61 are arranged correspondingly. When the partition 4 closes the suction plate 114, the first magnet 6 moves towards the second magnet 61. When the first magnet 6 moves to a designated position, the first magnet 6 and the second magnet 61 attract each other under their own magnetic force, thereby fixing the partition 4. By fixing the first magnet 6 to the partition 4 and the second magnet 61 to the suction plate 114, the partition 4 is fixed when the first magnet 6 and the second magnet 61 come into contact, which can reduce the shaking of the partition 4 during use and prevent dust from falling from the suction plate 114.

[0029] Working principle: When raw materials need to be screened, they are fed into the feed hopper 14 and fall into the storage hopper 15. Then, the permanent magnet drum 13 is activated. When the permanent magnet drum 13 is activated, it generates magnetic force to attract the raw materials. At this time, a pair of motors 11 are activated, driving the rotating shaft 12 fixed to its output end to rotate. When the rotating shaft 12 rotates, it drives the permanent magnet drum 13 to rotate. When the permanent magnet drum 13 rotates to a designated position, its magnetic force decreases. At this time, magnetic materials fall off the surface of the permanent magnet drum 13 and fall into the fine hopper 17 on the storage hopper 15, while non-magnetic materials fall into the coarse hopper 16 on the storage hopper 15, thus achieving the screening of materials. When the volatile substance detaches from the surface of the permanent magnet roller 13, dust and impurities adhere to its surface. At this time, the suction pump 110 is activated. When the suction pump 110 is activated, air from the suction pipe 113 is drawn into the collection box 112. A negative pressure zone is formed at the suction plate 114. When the permanent magnet roller 13 rotates to the designated position, the dust and impurities adhering to it are drawn off by the suction plate 114. The air mixed with the dust and impurities is then collected in the collection box 112. When the motor 11 is activated, it drives the rotating shaft 12 to rotate. The rotation of the rotating shaft 12 drives the second pulley 22 fixed to it to rotate. The rotation of the second pulley 22, through the connecting belt 23, drives the first pulley 21 to rotate. When the first pulley 21 rotates, it drives the brush roller 24 to rotate. When the brush roller 24 rotates, it contacts the surface of the permanent magnet roller 13. At this time, the brush roller 24 cleans the dust that is difficult to remove from the permanent magnet roller 13. The cleaned dust and impurities are then adsorbed and cleaned by the suction plate 114. When the brush roller 24 rotates, it cleans the dust and impurities attached to the surface of the permanent magnet roller 13. When the dust and impurities fall off the surface of the permanent magnet roller 13, some of the dust and impurities will adhere to the surface of the brush roller 24. When the brush roller 24 rotates, it contacts the cleaning plate 3. At this time, the cleaning plate 3 cleans the dust attached to the surface of the brush roller 24. When the air pump 110 is turned on, a negative pressure zone is formed at the suction plate 114. At this time, the partition 4 moves towards the suction plate 114. When the partition 4 approaches the side wall of the suction plate 114, the suction plate 114 is opened. At this time, the suction plate 114 adsorbs the dust and impurities on the permanent magnet roller 13. When the suction pump 110 is turned off, the suction force at the suction plate 114 weakens, and the partition 4 falls towards the permanent magnet roller 13. When the partition 4 falls to the designated position, it closes the suction plate 114. When the suction pump 110 stops working, the elastic rope 5 pulls the partition 4 back to its original position under its own elastic force. When the partition 4 closes the suction plate 114, the first magnet 6 moves towards the second magnet 61. When the first magnet 6 moves to the designated position, the first magnet 6 and the second magnet 61 attract each other under their own magnetic force, thereby fixing the partition 4.

[0030] 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.

[0031] 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 dust collection device for a dry magnetic separator, characterized in that: Includes support legs (1), a motor (11) fixedly connected to a pair of support legs (1), a rotating shaft (12) fixedly connected to the end of the motor (11), the rotating shaft (12) and the support legs (1) are through-connected and rotatably connected, a permanent magnet roller (13) fixedly connected between the pair of rotating shafts (12), a feed hopper (14) fixedly connected between the pair of support legs (1), a storage hopper (15) directly fixedly connected to the pair of support legs (1), the feed hopper (14) and the storage hopper (15) are connected, a coarse material hopper (16) is opened on the storage hopper (15), the storage hopper ( 15) A fine hopper (17) is provided on the upper part. A support column (18) is fixedly connected to the support leg (1). A connecting plate (19) is fixedly connected between a pair of support columns (18). A vacuum pump (110) is fixedly connected to the connecting plate (19). A connecting pipe (111) is connected to the vacuum pump (110). A collection box (112) is connected to the end of the connecting pipe (111). A suction pipe (113) is connected to the vacuum pump (110). The suction pipe (113) and the connecting plate (19) are connected through each other. A suction plate (114) is connected to the suction pipe (113).

2. The dust collection device for a dry magnetic separator according to claim 1, characterized in that: A fixing block (2) is fixedly connected to the support column (18), a first pulley (21) is rotatably connected between a pair of fixing blocks (2), a second pulley (22) is fixedly connected to a pair of rotating shafts (12), a connecting belt (23) is provided between the first pulley (21) and the second pulley (22), and a brush roller (24) is fixedly connected between a pair of first pulleys (21).

3. The dust collection device for a dry magnetic separator according to claim 1, characterized in that: A cleaning plate (3) is fixed between a pair of support columns (18), and the cleaning plate (3) and the brush roller (24) are respectively arranged.

4. The dust collection device for a dry magnetic separator according to claim 1, characterized in that: The inner wall of the suction plate (114) is hinged with a partition (4), which is located between the permanent magnet drum (13) and the suction plate (114).

5. A dust collection device for a dry magnetic separator according to claim 4, characterized in that: Multiple elastic ropes (5) are fixedly connected to the partition (4), and the other end of the elastic rope (5) is fixedly connected to the air intake plate (114).

6. A dust collection device for a dry magnetic separator according to claim 4, characterized in that: The partition (4) is fixedly connected to a first magnet (6), and the air intake plate (114) is fixedly connected to a second magnet (61). The first magnet (6) and the second magnet (61) are arranged correspondingly.