Mineral powder and iron powder separating device

Abstract

The invention discloses a mineral powder and iron powder separation device, and relates to the technical field of mineral powder and iron powder separation, the mineral powder and iron powder separation device comprises a supporting frame, a conveying frame is fixedly mounted at the top of the supporting frame, a first rotating drum is rotatably mounted in the conveying frame, and a second rotating drum is rotatably connected to the inner side of the conveying frame on the right side of the first rotating drum; the peripheries of the first rotary drum and the second rotary drum are sleeved with a belt, and a third motor is fixedly installed on the front side of the conveying frame. The magnetic separator and the magnetic suction plate are separated through the metal partition plate and are arranged in a staggered mode, it can be guaranteed that respective adsorption work is not affected, then the magnetic separator can be used for adsorbing iron powder close to the top of the belt, and the magnetic suction plate and the second rotary drum are used for adsorbing and fixing the remaining iron powder to the surface of the belt; and therefore, the separation operation of the mineral powder and the iron powder is improved, and the problem that the separation effect is affected due to the fact that the mineral powder attached to the mixture is accumulated on the top of the belt to be too thick on a conveying frame is solved.

Description

Technical Field

[0001] The present invention relates to the field of ore powder and iron powder separation, and in particular to an ore powder and iron powder separation device. Background Art

[0002] Mineral powder is the product of ore processing through crushing, grinding, beneficiation and other processes. Iron powder is an aggregate of iron particles with a particle size of less than 1mm. In the mineral processing process, the separation of iron powder from mineral powder is an important link.

[0003] Traditional magnetic separation technology mainly uses magnetic separators to adsorb and separate mineral powders, and is widely used in various mineral processing production lines. With the expansion of the scale of mineral processing, the amount of mineral powder processed continues to increase, and magnetic separation efficiency has become a key factor restricting production efficiency and resource recovery rate. At present, the industry generally adopts a single-sided magnetic separation method. However, when the mineral powder is stacked thickly, the magnetic separator can only adsorb the iron powder on the surface, and the iron powder in the lower layer is difficult to be fully adsorbed, which leads to a large amount of iron powder not being effectively recovered. This not only wastes resources, but also increases the difficulty and cost of subsequent processing. Therefore, it is necessary to propose a mineral powder and iron powder separation device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for separating ore powder and iron powder to solve the problem that the existing technology proposed in the background technology adopts a single-sided magnetic separation method. When the ore powder is stacked thickly, the magnetic separator can only adsorb the iron powder on the surface, and the iron powder in the lower layer is difficult to be fully adsorbed, which leads to a large amount of iron powder not being effectively recovered, which not only causes waste of resources, but also increases the difficulty and cost of subsequent processing.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A device for separating mineral powder and iron powder comprises a support frame, a conveying frame is fixedly installed on the top of the support frame, a first rotating drum is rotatably installed inside the conveying frame, a second rotating drum is rotatably connected to the inner side of the conveying frame on the right side of the first rotating drum, a belt is sleeved on the periphery of the first rotating drum and a third motor is fixedly installed on the front side of the conveying frame, the output shaft of the third motor is fixedly connected to the front side of the first rotating drum, a magnetic separator is fixedly installed on the top of the conveying frame, and a control panel is fixedly connected to the front side of the magnetic separator; a magnetic plate is fixedly installed inside the conveying frame on the right side of the first rotating drum, the top and bottom of the magnetic plate are in contact with the inner surface of the belt, and there is a certain gap between the right side of the magnetic plate and the second rotating drum, a magnetic film is attached to the outer surface of the second rotating drum, a metal partition is fixedly installed on the left side of the magnetic plate, an iron powder collection box is placed inside the support frame, and an mineral powder collection box is placed inside the support frame on the right side of the iron powder collection box.

[0006] The above-mentioned technical solution is adopted. In this solution, by staggering the magnetic separator and the magnetic plate and separating the magnetic separator and the magnetic plate with a metal partition, it can be ensured that their respective adsorption work is not affected. The magnetic separator can be used to adsorb the iron powder near the top of the belt first, and then the magnetic plate and the second rotating drum can be used to adsorb the remaining iron powder, so that they are adsorbed and fixed on the belt surface, and the mineral powder falls into the interior of the mineral powder collection box as the end conveyor rack moves to the right side of the belt, and the remaining iron powder on the conveyor rack follows the belt to its lower surface. When the iron powder leaves the bottom of the magnetic plate, it can automatically fall into the interior of the iron powder collection box, thereby improving the separation operation of the mineral powder and iron powder, and solving the problem that the mineral powder attached mixture accumulates too thickly on the conveyor rack on the top of the belt and affects the separation effect, reducing resource waste, and reducing the difficulty and cost of subsequent processing.

[0007] A further improvement of the technical solution of the present invention is that: a fixed frame is fixedly installed on the top of the conveying frame on the left side of the magnetic separator, a movable frame is movably arranged inside the fixed frame, an electric push rod is fixedly installed on the top of the fixed frame, the movable rod of the electric push rod extends to the interior of the fixed frame and is fixedly connected to the movable frame, a second roller is rotatably installed inside the movable frame through a second bearing, a second motor is fixedly installed on the rear side of the movable frame, the output shaft of the second motor is fixedly connected to the rear side of the second roller, and protective plates are fixedly installed on both the left and right sides of the fixed frame.

[0008] The above-mentioned technical solution is adopted. In this solution, through the mutual cooperation between the fixed frame and its internal structure, the second roller is installed and the second motor is controlled to drive the second roller to rotate counterclockwise, so as to limit the thickness of the iron powder and ore powder mixture on the top of the belt. In addition, the electric push rod is installed to drive the movable frame to move up and down, so that the height of the second roller can be adjusted to meet different production needs, thereby improving flexibility and preliminarily solving the problem of the ore powder attached mixture being too thickly accumulated on the top of the belt and affecting the separation effect.

[0009] A further improvement of the technical solution of the present invention is that: a plurality of second micropores are opened on the surface of the second roller, a first through hole is opened inside the second bearing, the first through hole is communicated with the interior of the second roller, a second air intake pipe is fixedly installed on the front side of the movable frame, the second air intake pipe is communicated with the front side of the second bearing, and the top of the second air intake pipe extends out of the interior of the fixed frame.

[0010] The above-mentioned technical solution is adopted. In this solution, a second micropore is opened, wherein the aperture of the second micropore is much smaller than that of the iron powder and the mineral powder, and a second air inlet pipe is installed to provide gas to the interior of the second roller, and then the air flow is ejected through the second micropore to blow away the mineral powder and the iron powder, thereby solving the problem that the second roller exerts downward pressure on the mineral powder and the iron powder, which in turn causes the mineral powder and the iron powder to be pressed together. The effect of separating the mineral powder and the iron powder is improved to a certain extent, and at the same time, the possibility of the mineral powder and the iron powder adhering to the outer surface of the second roller is reduced, thereby reducing waste.

[0011] A further improvement of the technical solution of the present invention is that a connecting frame is fixedly installed on the right side of the movable frame, a side brush is fixedly installed on the left side of the connecting frame, and the left side of the side brush is in contact with the surface of the second roller.

[0012] The above-mentioned technical solution is adopted. In this solution, by installing a connecting frame and a side brush, during the rotation of the second roller, the side brush can be used to clean along the outer surface of the second roller, thereby sweeping away a small amount of iron powder and mineral powder adhering to the surface of the second roller, further reducing waste.

[0013] A further improvement of the technical solution of the present invention is that the shape of the second microhole is a cone shape with a radius that continuously decreases from the inside to the outside of the second roller.

[0014] By adopting the above technical solution, in this solution, by setting the second micropores into a conical shape, the ejection speed of the airflow can be increased compared with the cylindrical straight holes, thereby further improving the effect of separating the mineral powder and the iron powder.

[0015] A further improvement of the technical solution of the present invention is that a first roller is rotatably installed inside the iron powder collection box at the bottom of the metal partition through a first bearing, a first motor is fixedly installed on the rear side of the iron powder collection box, the output shaft of the first motor is fixedly connected to the rear surface of the first roller, and a brush group is fixedly installed on the outer surface of the first roller.

[0016] The above-mentioned technical solution is adopted. In this solution, a first roller and a structure cooperating with it are set, wherein the first motor is controlled to drive the first roller to rotate clockwise, which can drive the brush group to rotate, so that each brush contacts the belt surface in turn, cleans the belt surface, and sweeps away a small amount of iron powder attached to the belt surface to ensure that they fall into the interior of the iron powder collection box, further reducing waste.

[0017] A further improvement of the technical solution of the present invention is that: a plurality of first micropores are opened on the surface of the first roller, a second through hole is opened inside the first bearing, the second through hole is interconnected with the interior of the first roller, and a first air intake pipe is fixedly installed on the front side of the iron powder collection box, and the first air intake pipe is interconnected with the front side of the first bearing.

[0018] The above-mentioned technical solution is adopted. In this solution, a first micropore is opened, wherein the aperture of the first micropore is much smaller than that of iron powder and mineral powder, and a first air inlet pipe is installed to provide gas to the interior of the first roller, and then the air flow is ejected through the first micropore, thereby reducing the possibility of iron powder adhering to the outer surface of the first micropore, further reducing waste.

[0019] A further improvement of the technical solution of the present invention is that the shape of the first microhole is a cone shape with a radius that continuously decreases from the inside to the outside of the first rotating roller.

[0020] By adopting the above technical solution, in this solution, by setting the first micropore into a conical shape, the ejection speed of the airflow can be increased compared to the cylindrical straight hole, thereby further reducing the possibility of iron powder adhering to the outer surface of the first micropore and reducing waste.

[0021] In summary, due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art: 1. The present invention provides a device for separating ore powder and iron powder, which alternately arranges a magnetic separator and a magnetic plate and separates them with a metal partition to ensure that the adsorption work of the magnetic separator and the magnetic plate is not affected, so that the magnetic separator is first used to adsorb the iron powder near the top of the belt, and then the magnetic plate and the second rotating drum are used to adsorb and fix the remaining iron powder on the belt surface to ensure that the iron powder falls into the interior of the iron powder collection box, thereby improving the separation operation of ore powder and iron powder, solving the problem that the ore powder attached mixture accumulates too thickly on the conveyor frame at the top of the belt and affects the separation effect, reducing resource waste, and reducing the difficulty and cost of subsequent processing.

[0022] 2. The present invention provides a mineral powder and iron powder separation device, which is provided with a fixed frame and its internal structure, wherein the second motor is controlled to drive the second roller to rotate counterclockwise, thereby limiting the thickness of the iron powder and mineral powder mixture on the top of the belt, preliminarily solving the problem that the mineral powder attached to the mixture is too thick and accumulates on the top of the belt, thereby affecting the separation effect. In addition, by opening a second microhole with a special shape, an air flow is ejected from the inside of the second roller, which can blow away the mineral powder and iron powder, thereby solving the problem that the second roller forms a downward pressure on the mineral powder and iron powder, which easily causes the mineral powder and iron powder to be pressed together. The effect of separating the mineral powder and iron powder is improved to a certain extent, and at the same time, the possibility of the mineral powder and iron powder adhering to the outer surface of the second roller can be reduced, thereby reducing waste.

[0023] 3. The present invention provides a mineral powder and iron powder separation device, which is provided with a first roller and a structure matched therewith, wherein the first motor is controlled to drive the first roller to rotate clockwise, which can drive the brush group to clean the belt surface, sweep away a small amount of iron powder adhering to the belt surface and drop it into the interior of the iron powder collection box, and by opening a first micropore of a special shape and ejecting air flow from the interior of the first roller, the possibility of iron powder adhering to the outer surface of the first micropore can be reduced, thereby further reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the present invention; Figure 2 It is a schematic diagram of a partial cross-sectional structure of a support frame of the present invention; Figure 3 This is a schematic diagram of a partial cross-sectional structure of an iron powder collecting box of the present invention; Figure 4 This is a schematic diagram of a partial cross-sectional structure of the first rotating roller of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional structure of a fixing frame of the present invention; Figure 6 It is a schematic diagram of the partial cross-sectional structure of the second roller of the present invention.

[0025] Description of reference numerals: 1. Support frame; 2. Conveyor frame; 3. Iron powder collection box; 4. Control panel; 5. Mineral powder collection box; 6. First air inlet pipe; 7. Fixed frame; 8. Electric push rod; 9. Protective plate; 10. Second air inlet pipe; 11. First roller; 12. First motor; 13. First bearing; 14. First micropore; 15. Movable frame; 16. Second roller; 17. Second micropore; 18. Connecting frame; 19. Side brush; 20. Second motor; 21. Second bearing; 22. Third motor; 23. Belt; 24. First drum; 25. Second drum; 26. Magnetic plate; 27. Metal partition; 28. Brush group; 29. ​​Magnetic separator. DETAILED DESCRIPTION

[0026] The present invention is described in further detail below in conjunction with the embodiments: Example 1 like Figure 1 、 Figure 2 and Figure 3As shown, the present invention provides a mineral powder and iron powder separation device, including a support frame 1, a conveyor frame 2 is fixedly installed on the top of the support frame 1, a first rotating drum 24 is rotatably installed inside the conveyor frame 2, a second rotating drum 25 is rotatably connected to the inner side of the conveyor frame 2 on the right side of the first rotating drum 24, a belt 23 is sleeved on the periphery of the first rotating drum 24 and the second rotating drum 25, a third motor 22 is fixedly installed on the front side of the conveyor frame 2, the output shaft of the third motor 22 is fixedly connected to the front side of the first rotating drum 24, and a magnetic separator 2 is fixedly installed on the top of the conveyor frame 2. 9. A control panel 4 is fixedly connected to the front side of the magnetic separator 29; a magnetic plate 26 is fixedly installed inside the conveyor frame 2 on the right side of the first rotating drum 24, and the top and bottom of the magnetic plate 26 are in contact with the inner surface of the belt 23, and there is a certain gap between the right side of the magnetic plate 26 and the second rotating drum 25. A magnetic film is attached to the outer surface of the second rotating drum 25, and a metal partition 27 is fixedly installed on the left side of the magnetic plate 26. An iron powder collecting box 3 is placed inside the support frame 1, and a mineral powder collecting box 5 is placed inside the support frame 1 on the right side of the iron powder collecting box 3.

[0027] In this embodiment, by staggering the magnetic separator 29 and the magnetic plate 26 and separating the magnetic separator 29 from the magnetic plate 26 by using a metal partition 27, it can be ensured that their respective adsorption work is not affected, and the magnetic separator 29 can be used to adsorb the iron powder near the top of the belt 23 first, and then the magnetic plate 26 and the second rotating drum 25 can be used to adsorb the remaining iron powder, so that they are adsorbed and fixed on the surface of the belt 23, and the mineral powder falls into the interior of the mineral powder collection box 5 as it moves to the end conveyor rack 2 on the right side of the belt 23, and the remaining iron powder on the conveyor rack 2 follows the belt 23 to its lower surface. When the iron powder breaks away from the bottom of the magnetic plate 26, it can automatically fall into the interior of the iron powder collection box 3, thereby improving the separation operation of the mineral powder and iron powder, and solving the problem that the mineral powder attached mixture accumulates too thickly on the conveyor rack 2 on the top of the belt 23 and affects the separation effect, reducing resource waste, and reducing the difficulty and cost of subsequent processing.

[0028] Example 2 like Figure 1 、 Figure 5 and Figure 6As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a fixed frame 7 is fixedly installed on the top of the conveying frame 2 on the left side of the magnetic separator 29, a movable frame 15 is movably provided inside the fixed frame 7, an electric push rod 8 is fixedly installed on the top of the fixed frame 7, the movable rod of the electric push rod 8 extends to the inside of the fixed frame 7 and is fixedly connected to the movable frame 15, a second roller 16 is rotatably installed inside the movable frame 15 through a second bearing 21, a second motor 20 is fixedly installed on the rear side of the movable frame 15, and the output shaft of the second motor 20 is fixedly connected to the rear side of the second roller 16, and protective plates 9 are fixedly installed on both the left and right sides of the fixed frame 7. A plurality of second micropores 17 are provided on the surface of the rotating roller 16, and a first through hole is provided inside the second bearing 21. The first through hole is communicated with the interior of the second rotating roller 16. A second air intake pipe 10 is fixedly installed on the front side of the movable frame 15. The second air intake pipe 10 is communicated with the front side of the second bearing 21, and the top of the second air intake pipe 10 extends out of the interior of the fixed frame 7. A connecting frame 18 is fixedly installed on the right side of the movable frame 15, and a side brush 19 is fixedly installed on the left side of the connecting frame 18. The left side of the side brush 19 is in contact with the surface of the second rotating roller 16. The shape of the second micropores 17 is that the second rotating roller 16 is a cone with a radius that continuously decreases from the inside to the outside.

[0029] In this embodiment, through the mutual cooperation between the fixed frame 7 and its internal structure, the second roller 16 is installed, and the second motor 20 is controlled to drive the second roller 16 to rotate counterclockwise, so that the thickness of the iron powder and ore powder mixture on the top of the belt 23 can be limited, and the electric push rod 8 is installed to drive the movable frame 15 to move up and down, so that the height of the second roller 16 can be adjusted to meet different production needs, thereby improving flexibility and preliminarily solving the problem that the ore powder and ore powder mixture accumulates too thickly on the top of the belt 23 and affects the separation effect; by opening the second micropore 17, wherein the aperture of the second micropore 17 is much smaller than that of the iron powder and ore powder, and by installing the second air inlet pipe 10, gas can be provided to the inside of the second roller 16, and then sprayed through the second micropore 17. The outgoing airflow can blow away the mineral powder and iron powder, solving the problem that the second roller 16 forms a downward pressure on the mineral powder and iron powder, which causes the mineral powder and iron powder to be pressed together, and improves the effect of separating the mineral powder and iron powder to a certain extent. At the same time, it can reduce the possibility of mineral powder and iron powder adhering to the outer surface of the second roller 16, reducing waste; by installing the connecting frame 18 and the side brush 19, during the rotation of the second roller 16, the side brush 19 can be used to clean along the outer surface of the second roller 16, and then a small amount of iron powder and mineral powder adhering to the surface of the second roller 16 can be swept away, further reducing waste; by setting the second micropore 17 to a conical shape, the ejection speed of the airflow can be increased relative to the cylindrical straight hole, thereby further improving the effect of separating the mineral powder and iron powder.

[0030] Example 3 like Figure 2 、 Figure 3 and Figure 4 As shown, on the basis of Example 2, the present invention provides a technical solution: preferably, a first roller 11 is rotatably installed inside the iron powder collecting box 3 at the bottom of the metal partition 27 through a first bearing 13, a first motor 12 is fixedly installed on the rear side of the iron powder collecting box 3, and the output shaft of the first motor 12 is fixedly connected to the rear surface of the first roller 11, a brush group 28 is fixedly installed on the outer surface of the first roller 11, a plurality of first micropores 14 are provided on the surface of the first roller 11, a second through hole is provided inside the first bearing 13, and the second through hole is interconnected with the interior of the first roller 11, a first air inlet pipe 6 is fixedly installed on the front side of the iron powder collecting box 3, and the first air inlet pipe 6 is interconnected with the front side of the first bearing 13, and the shape of the first micropore 14 is a cone with a radius that continuously decreases from the inside to the outside of the first roller 11.

[0031] In this embodiment, by setting the first roller 11 and the structure cooperating therewith, wherein the first motor 12 is controlled to drive the first roller 11 to rotate clockwise, the brush group 28 can be driven to rotate, so that each brush contacts the surface of the belt 23 in turn, cleans the surface of the belt 23, and sweeps away a small amount of iron powder adhering to the surface of the belt 23 to ensure that they fall into the interior of the iron powder collection box 3, thereby further reducing waste; by opening the first micropore 14, wherein the aperture of the first micropore 14 is much smaller than that of the iron powder and the mineral powder, and by installing the first air inlet pipe 6, gas can be provided to the interior of the first roller 11, and then the air flow is ejected through the first micropore 14, thereby reducing the possibility of iron powder adhering to the outer surface of the first micropore 14, thereby further reducing waste; by setting the first micropore 14 to a conical shape, the ejection speed of the air flow can be increased relative to the cylindrical straight hole, thereby further reducing the possibility of iron powder adhering to the outer surface of the first micropore 14, thereby reducing waste.

[0032] The working principle of the ore powder and iron powder separation device is described in detail below.

[0033] like Figures 1-6As shown, according to different actual usage requirements, the operator can control the electric push rod 8 to drive the movable frame 15 to move up and down, and adjust the distance between the second roller 16 and the belt 23. After the adjustment is completed, the operator can connect the second air inlet pipe 10 and the first air inlet pipe 6 to the external air supply equipment respectively, and control the second motor 20 to drive the second roller 16 to rotate counterclockwise, and then pour the mineral powder and iron powder into the left side of the top of the belt 23. When the mineral powder and iron powder move to the bottom of the second roller 16, the second roller 16 can limit the thickness of the iron powder and mineral powder mixture at the top of the belt 23, and the gas can enter the interior of the second roller 16 through the second air inlet pipe 10, and then eject the air flow through the second micropores 17 to blow away the mineral powder and iron powder, and then use the magnetic separator 29 to adsorb the iron powder to separate the mineral powder and iron powder, and then The remaining iron powder and mineral powder continue to follow the belt 23 to move to the right. When the iron powder moves to the top of the magnetic plate 26, the magnetic plate 26 and the second rotating drum 25 can adsorb the iron powder, so that the iron powder adheres to the surface of the belt 23, while the mineral powder moves to the bottom of the right side to the inside of the mineral powder collection box 5. The iron powder follows the belt 23 to move to its lower surface, and after it breaks away from the bottom of the magnetic plate 26, most of the iron powder can automatically fall into the inside of the iron powder collection box 3. At this time, the first motor 12 can be controlled to drive the first roller 11 to rotate, so that the brush group 28 rotates, and the small amount of iron powder on the lower surface of the belt 23 is cleaned and guided into the iron powder collection box 3. At the same time, the gas enters the interior of the first roller 11 through the first air inlet pipe 6, and then ejects the air flow through the first micropore 14 to prevent the iron powder from adhering to the surface of the first roller 11.

[0034] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made based on the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A device for separating ore powder and iron powder, comprising a support frame (1), characterized in that: A conveying frame (2) is fixedly mounted on the top of the support frame (1), a first rotating drum (24) is rotatably mounted inside the conveying frame (2), a second rotating drum (25) is rotatably connected to the inner side of the conveying frame (2) on the right side of the first rotating drum (24), a belt (23) is sleeved on the periphery of the first rotating drum (24) and the second rotating drum (25), a third motor (22) is fixedly mounted on the front side of the conveying frame (2), an output shaft of the third motor (22) is fixedly connected to the front side of the first rotating drum (24), a magnetic separator (29) is fixedly mounted on the top of the conveying frame (2), and a control panel (4) is fixedly connected to the front side of the magnetic separator (29); A magnetic plate (26) is fixedly installed inside the conveying frame (2) on the right side of the first rotating drum (24), the top and bottom of the magnetic plate (26) are in contact with the inner surface of the belt (23), and there is a certain gap between the right side of the magnetic plate (26) and the second rotating drum (25), the outer surface of the second rotating drum (25) is attached with a magnetic film, and a metal partition (27) is fixedly installed on the left side of the magnetic plate (26), an iron powder collection box (3) is placed inside the support frame (1), and a mineral powder collection box (5) is placed inside the support frame (1) on the right side of the iron powder collection box (3).

2. The ore powder and iron powder separation device according to claim 1, characterized in that: A fixed frame (7) is fixedly installed on the top of the conveying frame (2) on the left side of the magnetic separator (29), a movable frame (15) is movably provided inside the fixed frame (7), an electric push rod (8) is fixedly installed on the top of the fixed frame (7), the movable rod of the electric push rod (8) extends into the interior of the fixed frame (7) and is fixedly connected to the movable frame (15), a second roller (16) is rotatably installed inside the movable frame (15) through a second bearing (21), a second motor (20) is fixedly installed on the rear side of the movable frame (15), an output shaft of the second motor (20) is fixedly connected to the rear side of the second roller (16), and protective plates (9) are fixedly installed on both the left and right sides of the fixed frame (7).

3. The ore powder and iron powder separation device according to claim 2, characterized in that: A plurality of second micropores (17) are provided on the surface of the second roller (16), a first through hole is provided inside the second bearing (21), the first through hole is communicated with the inside of the second roller (16), a second air intake pipe (10) is fixedly mounted on the front side of the movable frame (15), the second air intake pipe (10) is communicated with the front side of the second bearing (21), and the top of the second air intake pipe (10) extends out of the interior of the fixed frame (7).

4. The ore powder and iron powder separation device according to claim 3, characterized in that: A connecting frame (18) is fixedly mounted on the right side of the movable frame (15), and a side brush (19) is fixedly mounted on the left side of the connecting frame (18), wherein the left side of the side brush (19) is in contact with the surface of the second rotating roller (16).

5. The ore powder and iron powder separation device according to claim 4, characterized in that: The shape of the second micropore (17) is a conical shape with a radius that continuously decreases from the inside to the outside of the second rotating roller (16).

6. The ore powder and iron powder separation device according to claim 1, characterized in that: A first roller (11) is rotatably mounted inside the iron powder collecting box (3) at the bottom of the metal partition (27) via a first bearing (13), a first motor (12) is fixedly mounted on the rear side of the iron powder collecting box (3), an output shaft of the first motor (12) is fixedly connected to the rear side surface of the first roller (11), and a brush group (28) is fixedly mounted on the outer surface of the first roller (11).

7. The ore powder and iron powder separation device according to claim 6, characterized in that: A plurality of first micropores (14) are provided on the surface of the first rotating roller (11), a second through hole is provided inside the first bearing (13), and the second through hole is communicated with the inside of the first rotating roller (11), and a first air inlet pipe (6) is fixedly installed on the front side of the iron powder collecting box (3), and the first air inlet pipe (6) is communicated with the front side of the first bearing (13).

8. The ore powder and iron powder separation device according to claim 7, characterized in that: The shape of the first micropore (14) is a cone shape with a radius that decreases from the inside to the outside of the first rotating roller (11).

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