Ilmenite tailings magnetic separator

Abstract

This application relates to the field of mineral processing technology, specifically disclosing a magnetic separator for ilmenite tailings. The separator includes a frame, a feed hopper, a waste hopper, a concentrate hopper, a strong magnetic roller, a driven roller, a transmission belt, and a first rotating motor. The strong magnetic roller and the driven roller are both laterally rotatably connected to the frame. The transmission belt is wound around the strong magnetic roller and the driven roller. The rotating shaft of the first rotating motor is connected to the strong magnetic roller. The feed hopper is located on the frame above the transmission belt, and a leveling mechanism for leveling the tailings is provided at the bottom of the feed hopper. The concentrate hopper is located on the frame below the strong magnetic roller, and the waste hopper is located on the frame to one side of the strong magnetic roller, with the height of the waste hopper lower than the height of the strong magnetic roller's axis. This application addresses the problem that the magnetic roller does not directly contact the minerals in the ore bin, relying solely on the magnetic force of the magnetic roller itself to adsorb magnetic minerals, resulting in an unsatisfactory separation effect. Furthermore, the accumulation of minerals in the ore bin further reduces the separation effect, leading to limited practicality.

Description

Technical Field

[0001] This application relates to the field of mineral processing technology, and in particular to a magnetic separator for ilmenite tailings. Background Technology

[0002] Titanium is an important metallic resource, characterized by its light weight, high strength, acid and alkali resistance, and corrosion resistance. It is widely used in high-speed rail, aerospace, marine, and coating industries. Ilmenite is an oxide mineral of iron and titanium and is the main ore for titanium extraction. The beneficiation process of ilmenite produces ilmenite tailings, which contain a certain amount of ilmenite, resulting in a relatively low utilization rate of titanium resources.

[0003] A magnetic separation device is proposed in the related technology, including a magnetic drum, a ore box, a scraper, and a discharge hopper. The magnetic drum is rotatably connected to one side of the ore box, the scraper is inclined on the side of the ore box close to the magnetic drum, and the discharge hopper is located on the side of the scraper away from the magnetic drum. During the rotation of the magnetic drum, the magnetic minerals in the ore box are adsorbed onto its outer circumference. The magnetic minerals adsorbed on the magnetic drum are scraped off by the scraping action of the scraper and discharged into the discharge hopper, thereby achieving effective separation of magnetic minerals.

[0004] Regarding the aforementioned technologies, the magnetic roller does not directly contact the minerals in the ore bin; it relies solely on the magnetic force of the roller itself to attract the magnetic minerals. As a result, the separation effect of the magnetic minerals is not ideal, and the accumulation of minerals in the ore bin further reduces the separation effect of the magnetic minerals, making it impractical. Utility Model Content

[0005] To address the issues that the magnetic drum does not directly contact the minerals in the ore bin, relying solely on the magnetic force of the drum itself to adsorb the magnetic minerals, resulting in an unsatisfactory separation effect and further reducing the separation effect due to mineral accumulation in the ore bin, this application provides a magnetic separator for ilmenite tailings.

[0006] The magnetic separator for ilmenite tailings provided in this application adopts the following technical solution:

[0007] A magnetic separator for ilmenite tailings includes a frame, a hopper, a magnetic separation mechanism, a waste hopper, and a concentrate hopper. The magnetic separation mechanism includes a strong magnetic roller, a driven roller, a transmission belt, and a first rotating motor. The strong magnetic roller and the driven roller are both rotatably connected to the frame. The transmission belt is wound around the strong magnetic roller and the driven roller. The first rotating motor is mounted on the frame, and its rotating shaft is connected to the strong magnetic roller. The hopper is mounted on the frame above the transmission belt, and its bottom is equipped with a leveling mechanism for leveling the tailings. The concentrate hopper is mounted on the frame below the strong magnetic roller, and the waste hopper is mounted on the frame to one side of the strong magnetic roller. The height of the waste hopper is lower than the height of the axis of the strong magnetic roller.

[0008] By adopting the above technical solution, the first rotating motor drives the strong magnetic roller to rotate, thereby causing the transmission belt wound around the strong magnetic roller and the driven roller to circulate. The tailings in the hopper fall down, are flattened by the flattening mechanism at the bottom of the hopper, and then fall onto the transmission belt. As the transmission belt moves to the strong magnetic roller, the magnetic minerals are attracted to the transmission belt. As the transmission belt rotates, the tailings fall into the concentrate hopper below the strong magnetic roller. The non-magnetic minerals fall directly into the waste hopper, which is lower than the height of the axis of the strong magnetic roller, due to gravity. This achieves the separation of magnetic ilmenite and non-magnetic minerals in the tailings. The flattening mechanism allows the tailings to be flattened. The magnetic rollers are evenly distributed on the drive belt, which enhances the adsorption of magnetic ilmenite in the tailings by the strong magnetic rollers, thus improving the separation effect. As the magnetic ilmenite moves away from the strong magnetic rollers with the operation of the drive belt, the magnetic force weakens and it can automatically fall into the concentrate hopper. The separation process has a high degree of automation, simple structure and convenient use. It improves the problem that the magnetic rollers do not directly contact the minerals in the ore bin, and rely solely on the magnetic force of the magnetic rollers to adsorb magnetic minerals. The separation effect of magnetic minerals is not ideal, and the accumulation of minerals in the ore bins further reduces the separation effect of magnetic minerals, which makes it less practical.

[0009] Optionally, the flattening mechanism includes a dropping frame, a sliding baffle, and a reciprocating drive assembly. The dropping frame is inclinedly disposed at the bottom of the hopper, and the sliding baffle is slidably connected to the dropping frame along the extending direction of the dropping frame. The sliding baffle has multiple material discharge through holes. The reciprocating drive assembly is disposed on the dropping frame and is used to drive the sliding baffle to move back and forth.

[0010] By adopting the above technical solution, during the feeding process, the reciprocating drive component drives the sliding baffle to reciprocate within the falling frame along the extension direction of the falling frame. The tailings in the feeding hopper fall through the feeding through hole on the sliding baffle. During this process, the reciprocating movement of the sliding baffle can make the tailings shake continuously, so that they fall evenly and flatten, thereby improving the efficiency of subsequent magnetic separation.

[0011] Optionally, the reciprocating drive assembly includes a second rotary motor, a first connecting rod, and a second connecting rod. A groove is provided on the top of the falling frame along its own extension direction. A fixed rod is provided on the sliding baffle and passes through the groove. The second rotary motor is located on the falling frame. The first connecting rod is connected to the rotating shaft of the second rotary motor. One end of the second connecting rod is rotatably connected to the end of the first connecting rod, and the other end of the second connecting rod is rotatably connected to the fixed rod.

[0012] By adopting the above technical solution, the second rotating motor rotates and drives the first connecting rod to rotate. The first connecting rod drives the fixed rod to reciprocate linearly in the slide groove at the top of the falling frame through the second connecting rod, thereby driving the sliding baffle to reciprocate within the falling frame, realizing the flattening of the falling tailings, so that the tailings can fall more evenly onto the transmission belt for magnetic separation.

[0013] Optionally, the sliding baffle is V-shaped overall, and the height of the middle part of the sliding baffle is higher than the height of the two ends.

[0014] By adopting the above technical solution, using a V-shaped sliding baffle that is high in the middle and low at both ends, the tailings can slide to both sides, further making the tailings spread evenly and improving the magnetic separation effect.

[0015] Optionally, a second baffle is movably inserted into the sliding baffle along a direction perpendicular to the sliding plane of the sliding baffle, and a locking bolt is threadedly connected to the sliding baffle along the sliding direction of the sliding baffle, with the threaded end of the locking bolt abutting against the side wall of the second baffle.

[0016] By adopting the above technical solution, a second baffle is movably inserted into the sliding baffle and abutted by locking bolts, which can adjust the amount of tailings falling and better control the feeding of tailings during magnetic separation. Furthermore, by adjusting the size of the material discharge through-hole on the sliding baffle, the amount of material passing through the material discharge through-hole in the middle of the sliding baffle can be adjusted, thereby enabling the material to be evenly distributed and fall onto the transmission belt, thus improving the magnetic separation effect.

[0017] Optionally, a return cylinder is vertically arranged inside the waste hopper, and a return cylinder is rotatably connected inside the return cylinder. A spiral blade is provided on the return cylinder shaft, and a third rotating motor is provided at the top of the return cylinder. The rotating shaft of the third rotating motor is connected to the return cylinder shaft. A rotating cylinder is connected to the top of the return cylinder, and the other end of the rotating cylinder is connected to the top of the discharge hopper. The top of the return cylinder is higher than the top of the discharge hopper.

[0018] By adopting the above technical solution, a vertical return cylinder is installed in the waste hopper of the ilmenite tailings magnetic separator. In conjunction with the return cylinder's spiral blade-equipped rotating shaft and the third rotating motor at the top, the motor drives the rotating shaft to rotate the spiral blades, transporting the waste in the waste hopper to the top of the return cylinder. The rotating cylinder connects the top of the return cylinder and the top of the discharge hopper, and the top of the return cylinder is higher than the top of the discharge hopper. This allows the waste transported to the top of the return cylinder to flow back to the discharge hopper through the rotating cylinder, achieving re-screening of the waste and improving resource utilization.

[0019] Optionally, the transmission belt is provided with limiting strips at intervals along its own extension direction.

[0020] By adopting the above technical solution, the setting of the limiting strip can restrict the position of the material during the transportation on the transmission belt. When the magnetic ore rotates to the transmission belt below the strong magnetic roller and gradually moves away from the strong magnetic roller, it will not roll and gather at the strong magnetic roller. This avoids the magnetic ore being unable to fall due to the attraction of the strong magnetic roller, thus improving the efficiency of the automatic falling of the magnetic ore.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By using a strong magnetic roller and a transmission belt in combination, effective magnetic separation of ilmenite tailings can be achieved, separating magnetic minerals and improving resource utilization. The flattening mechanism at the bottom of the hopper can flatten the tailings, making them evenly distributed on the transmission belt, which enhances the adsorption effect of the strong magnetic roller on magnetic minerals, avoids resource waste, improves magnetic separation efficiency and final concentrate quality, and improves the existing technology where the magnetic roller does not directly contact the minerals in the ore box, and only relies on the magnetic force of the magnetic roller itself to adsorb magnetic minerals, resulting in an unsatisfactory separation effect of magnetic minerals. Furthermore, the accumulation of minerals in the ore box further reduces the separation effect of magnetic minerals, making it impractical.

[0023] 2. The coordinated arrangement of the dropping frame, V-shaped sliding baffle and reciprocating drive component allows the tailings in the hopper to fall through the dropping holes on the sliding baffle. The reciprocating drive component drives the sliding baffle to move back and forth, which can make the tailings shake continuously, so that they fall evenly and flatten, thereby improving the efficiency of subsequent magnetic separation.

[0024] 3. The matching configuration of the return cylinder, the return shaft with spiral blades, the third rotating motor, and the rotating cylinder enables the waste in the waste hopper to be transferred to the discharge hopper, realizing the re-screening of waste and improving resource utilization. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 yes Figure 1 Enlarged view of part A in the middle

[0028] Figure 3 This is a cross-sectional structural diagram of an embodiment of this application.

[0029] Reference numerals in the attached drawings: 1. Frame; 2. Feed hopper; 3. Magnetic separation mechanism; 31. Strong magnetic roller; 32. Driven roller; 33. Transmission belt; 34. First rotating motor; 35. Limiting bar; 4. Waste hopper; 5. Finished material hopper; 6. Flattening mechanism; 61. Drop frame; 611. Slide chute; 62. Sliding baffle; 621. Feeding through hole; 622. Fixing rod; 63. Second baffle; 64. Locking bolt; 65. Second rotating motor; 66. First connecting rod; 67. Second connecting rod; 7. Return cylinder; 71. Return shaft; 72. Spiral blade; 73. Third rotating motor; 74. Rotating cylinder. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a magnetic separator for ilmenite tailings. (Refer to...) Figure 1 The ilmenite tailings magnetic separator includes a frame 1, a feeding hopper 2, a magnetic separation mechanism 3, a waste hopper 4, and a concentrate hopper 5. The feeding hopper 2, magnetic separation mechanism 3, waste hopper 4, and concentrate hopper 5 are all mounted on the frame 1. Through the coordinated operation of these components, effective magnetic separation of ilmenite tailings can be achieved, separating magnetic and non-magnetic minerals and improving magnetic separation efficiency and concentrate quality.

[0032] Specifically, the magnetic separation mechanism 3 includes a strong magnetic roller 31, a driven roller 32, a transmission belt 33, and a first rotating motor 34. Both the strong magnetic roller 31 and the driven roller 32 are rotatably connected to the frame 1. The transmission belt 33 is wound around the strong magnetic roller 31 and the driven roller 32, and is provided with limiting strips 35 spaced apart along its extension direction. The first rotating motor 34 is mounted on the frame 1, and its rotating shaft is connected to the strong magnetic roller 31. The first rotating motor 34 provides power for the rotation of the strong magnetic roller 31. When the first rotating motor 34 is started to drive the strong magnetic roller 31 to rotate, the driven roller 32 can be driven to rotate together via the transmission belt 33. The first rotating motor 34 can be a three-phase asynchronous motor with stable power output. Alternatively, a servo motor can be used, which can more precisely control the speed. The strong magnetic roller 31 and the driven roller 32 are connected to the frame 1 by bearings to ensure smooth rotation. This structure allows the transmission belt 33 to operate continuously, providing the necessary motion conditions for the magnetic separation process.

[0033] The feeding hopper 2 is fixedly installed on the frame 1 above the transmission belt 33. The feeding hopper 2 has a feed inlet at the top and a discharge outlet at the bottom. The bottom of the feeding hopper 2 is equipped with a flattening mechanism 6 for flattening tailings. The concentrate hopper 5 is installed on the frame 1 below the strong magnetic roller 31, and the waste hopper 4 is installed on the frame 1 on one side of the strong magnetic roller 31, with the height of the waste hopper 4 lower than the height of the axis of the strong magnetic roller 31.

[0034] In use, the material is discharged from the outlet at the bottom of the hopper 2. The flattening mechanism 6 flattens and evenly distributes the tailings on the transmission belt 33. As the first rotating motor 34 starts, it drives the strong magnetic roller 31 and the transmission belt 33 to rotate. When the tailings run onto the strong magnetic roller 31, the magnetic minerals are magnetically attracted to the transmission belt 33 at the strong magnetic roller 31. The non-magnetic minerals are not attracted by the strong magnetic roller 31 and fall in a parabolic manner with the movement of the transmission belt 33 and eventually fall into the waste hopper 4. As the transmission belt 33 moves, the magnetically attracted minerals are pushed away from the strong magnetic roller 31 by the upper limit bar 35 of the transmission belt 33, and the magnetism weakens. As a result, the magnetic minerals that were originally attracted to the transmission belt 33 fall into the concentrate hopper 5, thereby achieving effective separation of magnetic ilmenite and non-magnetic minerals in the tailings. The flattening mechanism 6 allows the tailings to be distributed flat on the transmission belt 33, thereby improving the adsorption of magnetic ilmenite contained in the tailings by the strong magnetic roller 31 and improving the sorting effect. As the transmission belt 33 moves away from the strong magnetic roller 31, the magnetic force weakens and the magnetic ilmenite can automatically fall into the concentrate hopper 5. The sorting process has a high degree of automation, simple structure and convenient use. It improves the problem in the existing technology that the magnetic roller does not directly contact the minerals in the ore box, and only relies on the magnetic force of the magnetic roller itself to adsorb magnetic minerals. The separation effect of magnetic minerals is not ideal, and the accumulation of minerals in the ore box further reduces the separation effect of magnetic minerals, which is not practical.

[0035] For example, refer to Figure 1-2 The flattening mechanism 6 includes a dropping frame 61, a sliding baffle 62, and a reciprocating drive assembly. The dropping frame 61 is hollow and is installed at an angle at the bottom of the hopper 2. The sliding baffle 62 is V-shaped and slides along the extension direction of the dropping frame 61. The middle of the sliding baffle 62 is higher than the two ends. Multiple discharge through holes 621 are provided on the sliding baffle 62. The sliding baffle 62 can be made of wear-resistant plastic or metal. The multiple discharge through holes 621 are evenly distributed on the sliding baffle 62, and the through holes are square in shape. The reciprocating drive assembly is located on the dropping frame 61 and is used to drive the sliding baffle 62 to move back and forth. The hopper 2 is generally made of stainless steel, which has good wear resistance and corrosion resistance. The dropping frame 61 is generally welded from steel plates, and its inclined design facilitates the natural sliding of tailings.

[0036] In use, after the material is discharged from the discharge port at the bottom of the hopper 2, it first enters the drop frame 61. After contacting the V-shaped sliding baffle 62, the material disperses to both sides and falls onto the transmission belt 33 through the discharge through hole 621 on the sliding baffle 62, making the tailings spread evenly. At the same time, the reciprocating drive component drives the sliding baffle 62 to move back and forth along the extension direction of the drop frame 61. The relative position between the discharge through hole 621 and the discharge port of the drop frame 61 changes continuously, causing the tailings to shake continuously, thereby falling evenly and spreading out, improving the efficiency of subsequent magnetic separation.

[0037] Furthermore, a second baffle 63 is movably inserted into the sliding baffle 62 along a direction perpendicular to the sliding plane of the sliding baffle 62. A locking bolt 64 is threadedly connected to the sliding baffle 62 along the sliding direction of the sliding baffle 62. The threaded end of the locking bolt 64 abuts against the side wall of the second baffle 63. By rotating the locking bolt 64, the position of the second baffle 63 can be fixed. The second baffle 63 can adjust the effective area of ​​the material discharge hole 621, thereby controlling the amount and thickness of the tailings falling.

[0038] For example, the reciprocating drive assembly includes a second rotary motor 65, a first connecting rod 66, and a second connecting rod 67. A groove 611 is formed on the top wall of the drop frame 61 along its extension direction. A fixed rod 622, passing through the groove 611, is provided on the sliding baffle 62. The second rotary motor 65 is fixedly connected to the top of the drop frame 61. The first connecting rod 66 is connected to the rotating shaft of the second rotary motor 65. One end of the second connecting rod 67 is rotatably connected to the end of the first connecting rod 66, and the other end of the second connecting rod 67 is rotatably connected to the fixed rod 622. The second rotary motor 65 can be a small DC motor, which is low in cost and easy to control. When the second rotary motor 65 rotates, it drives the first connecting rod 66 to rotate. The first connecting rod 66, through the second connecting rod 67, drives the fixed rod 622 to reciprocate within the groove 611, thereby causing the sliding baffle 62 to reciprocate within the drop frame 61. The structure is relatively simple, and the reciprocating drive of the sliding baffle 62 is stable and reliable.

[0039] In addition, refer to Figure 1 and Figure 3A return cylinder 7 is vertically fixed inside the waste hopper 4. The bottom of the return cylinder 7 has an opening communicating with the inner cavity of the waste hopper 4. A return shaft 71 is rotatably connected inside the return cylinder 7, and a spiral blade 72 is mounted on the return shaft 71. A third rotating motor 73 is mounted at the top of the return cylinder 7, and the rotating shaft of the third rotating motor 73 is connected to the return shaft 71. A rotating cylinder 74 is connected to the top side wall of the return cylinder 7, and the other end of the rotating cylinder 74 is connected to the top of the discharge hopper 2. The top of the return cylinder 7 is higher than the top of the discharge hopper 2. When the third rotating motor 73 starts, it drives the return shaft 71 to rotate, which in turn drives the spiral blade 72 to rotate, thus conveying the waste in the waste hopper 4 to the top of the return cylinder 7. The waste then falls into the discharge hopper 2 through the rotating cylinder 74, achieving a second screening of the waste and improving resource utilization.

[0040] The implementation principle of this embodiment is as follows: The first rotating motor 34 is started, driving the strong magnetic roller 31 to rotate, which in turn drives the driven roller 32 to rotate via the transmission belt 33. Ilmenite tailings are placed into the feeding hopper 2. Through the rotation of the second rotating motor 65 in the flattening mechanism 6, the circular motion of the rotating shaft of the second rotating motor 65 is converted into the reciprocating linear motion of the sliding baffle 62 via the transmission of the first connecting rod 66 and the second connecting rod 67. The reciprocating movement of the sliding baffle 62 causes the relative position of the discharge hole 621 and the discharge port of the lower frame 61 to continuously change. Simultaneously, the V-shaped sliding baffle 62 disperses the tailings to both sides, and the amount of tailings falling can be adjusted by the second baffle 63, thus ensuring that the tailings fall evenly from the discharge hole 621 and are distributed on the transmission belt 33. As the drive belt 33 rotates, the tailings pass through the strong magnetic roller 31. Magnetic minerals are attracted by the strong magnetic roller 31 and fall into the concentrate hopper 5 after reaching a certain position as the strong magnetic roller 31 rotates. Non-magnetic minerals continue to move with the drive belt 33 and eventually fall into the waste hopper 4 in a parabolic trajectory. For waste that is not completely separated by the first magnetic separation, the third rotating motor 73 drives the return shaft 71 to rotate, and the spiral blades 72 rotate accordingly, lifting the waste in the waste hopper 4 to the top of the return cylinder 7, and then returning to the discharge hopper 2 through the rotating cylinder 74 for secondary magnetic separation. Compared with traditional magnetic separators, this magnetic separator uses a flattening mechanism 6 to evenly distribute the tailings, and the cooperation between the strong magnetic roller 31 and the drive belt 33 ensures automatic and accurate magnetic separation of the tailings. The return mechanism performs secondary magnetic separation, which greatly improves the adsorption effect of the strong magnetic roller 31 on magnetic minerals, reduces resource waste, and improves magnetic separation efficiency and the quality of the final concentrate.

[0041] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ilmenite tailings magnetic separator characterised in that: The device includes a frame, a feeding hopper, a magnetic separation mechanism, a waste hopper, and a concentrate hopper. The magnetic separation mechanism includes a strong magnetic roller, a driven roller, a transmission belt, and a first rotating motor. The strong magnetic roller and the driven roller are both rotatably connected to the frame. The transmission belt is wound around the strong magnetic roller and the driven roller. The first rotating motor is mounted on the frame, and its rotating shaft is connected to the strong magnetic roller. The feeding hopper is located on the frame above the transmission belt, and its bottom is equipped with a leveling mechanism for leveling tailings. The concentrate hopper is located on the frame below the strong magnetic roller, and the waste hopper is located on the frame to one side of the strong magnetic roller. The height of the waste hopper is lower than the height of the axis of the strong magnetic roller.

2. A rutile tailings magnetic separator according to claim 1, characterised in that: The flattening mechanism includes a dropping frame, a sliding baffle, and a reciprocating drive assembly. The dropping frame is inclinedly disposed at the bottom of the hopper. The sliding baffle is slidably connected to the dropping frame along the extension direction of the dropping frame. The sliding baffle has multiple material discharge through holes. The reciprocating drive assembly is disposed on the dropping frame and is used to drive the sliding baffle to move back and forth.

3. A rutile tailings magnetic separator according to claim 2, characterised in that: The reciprocating drive assembly includes a second rotary motor, a first connecting rod, and a second connecting rod. A groove is provided on the top of the falling frame along its own extension direction. A fixed rod is provided on the sliding baffle and passes through the groove. The second rotary motor is located on the falling frame. The first connecting rod is connected to the rotating shaft of the second rotary motor. One end of the second connecting rod is rotatably connected to the end of the first connecting rod, and the other end of the second connecting rod is rotatably connected to the fixed rod.

4. A rutile tailings magnetic separator according to claim 2, characterised in that: The sliding baffle is V-shaped, with the height of the middle part being higher than the height of the two ends.

5. A rutile tailings magnetic separator according to claim 2 characterised in that: A second baffle is movably inserted into the sliding baffle along a direction perpendicular to the sliding plane of the sliding baffle. A locking bolt is threadedly connected to the sliding baffle along the sliding direction of the sliding baffle, and the threaded end of the locking bolt abuts against the side wall of the second baffle.

6. Ilmenite tailings magnetic separator according to claim 1, characterized in that: The waste hopper is vertically equipped with a return cylinder, and a return shaft is rotatably connected inside the return cylinder. The return shaft is equipped with spiral blades. A third rotating motor is provided at the top of the return cylinder. The rotating shaft of the third rotating motor is connected to the return shaft. A rotating cylinder is connected to the top of the return cylinder. The other end of the rotating cylinder is connected to the top of the discharge hopper. The top of the return cylinder is higher than the top of the discharge hopper.

7. A ilmenite tailings magnetic separator according to claim 1, characterised in that: The transmission belt is provided with limiting strips at intervals along its own extension direction.

Images