An unattended mineral processing unit

Abstract

This utility model provides an unattended mineral separator, belonging to the field of mining technology. It includes a frame, a tank mounted on the frame, a magnetic separator mounted on the tank, and a drive device connected to the magnetic separator. One side of the magnetic separation zone within the tank has a first opening for discharging magnetic mineral particles, and the other side has a second opening for discharging non-magnetic mineral particles. The tank is equipped with a first baffle plate, a first driver, a second baffle plate, and a second driver. The first driver drives the first baffle plate to move closer to or away from the first opening to adjust the opening degree of the first opening, and the second driver drives the second baffle plate to move closer to or away from the second opening to adjust the opening degree of the second opening. The unattended mineral separator provided by this utility model improves magnetic separation efficiency, increases the purity of both magnetic and non-magnetic mineral particles, and improves the quality of magnetic separation.

Description

Technical Field

[0001] This utility model belongs to the field of mining technology, and more specifically, it relates to an unattended mineral processing device. Background Technology

[0002] In mineral processing, resource recycling, and solid waste treatment, magnetic separators are key equipment for separating materials using magnetic differences, and their technical performance directly affects separation efficiency and product quality. A typical magnetic separator mainly consists of a frame, a tank, a magnetic separator drum, and a drive unit. These four components work together to complete the separation process of magnetic and non-magnetic materials. During the separation operation, the material to be separated enters the tank and then enters the magnetic separation zone near the magnetic separator drum. Magnetic mineral particles, under the influence of the magnetic field force of the separator drum, move with the rotation of the drum to the opening at one end of the tank and are discharged by gravity or flushing water, forming a magnetic product. Non-magnetic mineral particles, unaffected by the magnetic field force, are discharged from the opening at the other end of the tank by their own gravity or water flow, becoming a non-magnetic product.

[0003] Currently, during the production process, due to the different characteristics of the materials, there are significant differences in their flow state within the tank and the separation speed between magnetic and non-magnetic mineral particles. When magnetic and non-magnetic mineral particles pass through the openings at both ends of the magnetic separation zone of the tank, the opening degree cannot match the material characteristics, resulting in a decrease in the magnetic separation efficiency of the magnetic separator and a decline in the magnetic separation quality. Utility Model Content

[0004] The purpose of this utility model is to provide an unattended mineral separator to solve the technical problem in the prior art where the inability to adjust the opening of the tank leads to a decrease in magnetic separation efficiency and a decline in magnetic separation quality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An unattended mineral processing device is provided, including a frame, a tank mounted on the frame, a magnetic separator mounted on the tank, and a driving device connected to the magnetic separator; one side of the magnetic separation zone within the tank has a first opening for discharging magnetic mineral particles, and the other side has a second opening for discharging non-magnetic mineral particles; the tank is provided with a first baffle plate, a first driver connected to the first baffle plate, a second baffle plate, and a second driver connected to the second baffle plate; the first driver drives the first baffle plate to move closer to or away from the first opening to adjust the opening degree of the first opening, and the second driver drives the second baffle plate to move closer to or away from the second opening to adjust the opening degree of the second opening.

[0006] In one possible implementation, the tank is provided with a receiving housing and an operating housing mounted on the receiving housing, and the receiving housing and the operating housing have a communicating transmission opening; the first driver is installed in the receiving housing, the operating housing has a sliding outlet on its outer wall near the first opening, and the first baffle plate is slidably connected in the operating housing; the free end of the first driver is located in the transmission opening and is drivingly connected to the first baffle plate.

[0007] In one possible implementation, the first barrier plate has a rack segment on the side near the transmission opening, and the first driver includes a drive motor and a gear assembly connected to the drive motor, the gear assembly meshing with the rack segment through the transmission opening.

[0008] In one possible implementation, a guide rail and a slider mounted on the guide rail are provided on the side of the operating housing away from the transmission opening, the first baffle plate is fixedly mounted on the slider, and the rack segment has a movable gap with the interior of the operating housing.

[0009] In one possible implementation, the first barrier plate is further provided with a smooth section on the side near the slide outlet, and the smooth section is slidably and sealingly connected to the slide outlet.

[0010] In one possible implementation, the tank is provided with two mounting seats arranged at intervals along the axial direction of the magnetic separator, and a rotating shaft is provided between the two mounting seats; one end of the second baffle plate is fixedly connected to the rotating shaft; and the second driver is connected to the rotating shaft.

[0011] In one possible implementation, the second barrier plate has an arcuate surface protruding toward the second opening on the side near the second opening.

[0012] In one possible implementation, the second barrier plate has a thickened portion on the side away from the pivot.

[0013] In one possible implementation, the end of the rotating shaft extends out of the groove and is located outside the groove, and a transmission rod is fixedly provided at the end of the rotating shaft, and the transmission rod is arranged perpendicular to the rotating shaft; a mounting plate is provided on the outer side of the groove, and the second driver is fixedly mounted on the mounting plate and connected to the end of the transmission rod away from the rotating shaft.

[0014] In one possible implementation, both the first barrier plate and the second barrier plate are provided with a wear-resistant layer.

[0015] The advantages of the unattended mineral separator provided by this utility model are as follows: Compared with the prior art, the unattended mineral separator of this utility model has a first baffle plate installed at the first opening (magnetic particle discharge outlet) of the magnetic separation zone of the tank. This first baffle plate is connected to a first driver. Through the power output of the first driver, the first baffle plate can be moved in a direction closer to or further away from the first opening, thereby precisely changing the flow cross-sectional area of ​​the first opening. Similarly, a second baffle plate and a second driver are installed at the second opening (non-magnetic particle discharge outlet). The second driver drives the second baffle plate to move, realizing flexible adjustment of the opening degree of the second opening. During operation, after the mineral separator is started, the drive device drives the magnetic separation drum to rotate normally, and the material to be separated enters the magnetic separation zone between the tank and the magnetic separation drum. Magnetic mineral particles move towards the first opening under the influence of a magnetic field, while non-magnetic mineral particles move towards the second opening under the influence of gravity or water flow. Based on the material characteristics, a control system (which can be integrated into the mineral separator for unattended automated control) sends commands to the first and second actuators, respectively controlling the movement of the first and second baffle plates relative to the first and second openings. This adjusts the opening size of the first and second openings to match their flow cross-sectional areas with the material characteristics, ensuring that different materials do not experience excessively high discharge speeds leading to incomplete separation or excessively slow discharge speeds leading to blockages. This significantly improves magnetic separation efficiency, increases the purity of both magnetic and non-magnetic mineral particles, and enhances the overall quality of magnetic separation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0017] Figure 1 A schematic diagram of the internal structure of the unattended mineral processing unit provided in this embodiment of the utility model; Figure 2 A schematic diagram of the structure of the first barrier plate and the first driver provided in an embodiment of this utility model; Figure 3 A schematic diagram of the structure of the second barrier plate and the second driver provided in the embodiments of this utility model; Figure 4 The front view of the unattended mineral processing unit provided in the embodiment of this utility model.

[0018] The following are the labeling elements in the figure: 10. Frame; 11. Tank; 12. Magnetic separator; 13. Drive unit; 14. First opening; 15. Second opening; 16. First baffle plate; 17. First driver; 18. Second baffle plate; 19. Second driver; 20. Housing; 21. Operating housing; 22. Transmission opening; 23. Slide outlet; 24. Rack section; 25. Drive motor; 26. Gear assembly; 27. Guide rail; 28. Slider; 29. ​​Movement distance; 30. Smooth section; 31. Sealing ring; 32. Mounting base; 33. Rotating shaft; 34. Arc-shaped surface; 35. Thickened part; 36. Transmission rod; 37. Mounting plate; 38. Connecting rod. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Please see Figures 1 to 4The unattended mineral processing device provided by this utility model will now be described. An unattended mineral processing device includes a frame 10, a tank 11 mounted on the frame 10, a magnetic separator 12 mounted on the tank 11, and a drive device 13 connected to the magnetic separator 12. The magnetic separation zone within the tank 11 has a first opening 14 on one side for discharging magnetic mineral particles, and a second opening 15 on the other side for discharging non-magnetic mineral particles. The tank 11 is provided with a first baffle plate 16, a first driver 17 connected to the first baffle plate 16, a second baffle plate 18, and a second driver 19 connected to the second baffle plate 18. The first driver 17 drives the first baffle plate 16 to move closer to or away from the first opening 14 to adjust the opening degree of the first opening 14, and the second driver 19 drives the second baffle plate 18 to move closer to or away from the second opening 15 to adjust the opening degree of the second opening 15.

[0024] Compared with the prior art, the unattended mineral separator provided by this utility model has a first baffle plate 16 installed at the first opening 14 (magnetic particle discharge port) of the magnetic separation zone of the tank 11. The first baffle plate 16 is connected to the first driver 17. Through the power output of the first driver 17, the first baffle plate 16 can be moved in a direction closer to or away from the first opening 14, thereby precisely changing the flow cross-sectional area of ​​the first opening 14. Similarly, a second baffle plate 18 and a second driver 19 are installed at the second opening 15 (non-magnetic particle discharge port). The second driver 19 drives the second baffle plate 18 to move, realizing flexible adjustment of the opening degree of the second opening 15. During operation, after the mineral separator is started, the drive device 13 drives the magnetic separation drum 12 to rotate normally, and the material to be separated enters the magnetic separation zone between the tank 11 and the magnetic separation drum 12. Magnetic mineral particles move towards the first opening 14 under the action of magnetic force, while non-magnetic mineral particles move towards the second opening 15 under the push of gravity or water flow. According to the material characteristics, the control system (which can be integrated into the mineral separator to achieve unattended automated control) sends commands to the first driver 17 and the second driver 19, respectively, to control the movement of the first baffle plate 16 and the second baffle plate 18 relative to the first opening 14 and the second opening 15. This achieves the purpose of adjusting the opening degree of the first opening 14 and the second opening 15, so that the flow cross-sectional area of ​​the first opening 14 and the second opening 15 matches the material characteristics. This ensures that when different materials pass through the mineral separator, there will be no situation where the discharge speed is too fast, resulting in incomplete separation, or the discharge speed is too slow, resulting in accumulation and blockage. This greatly improves the magnetic separation efficiency and also improves the purity of magnetic and non-magnetic mineral particles, thus improving the magnetic separation quality.

[0025] Specifically, if the magnetic mineral particles in the material are large and have poor flowability, the first actuator 17 drives the first baffle plate 16 to move away from the first opening 14, increasing the opening size to avoid clogging. If the magnetic mineral particles are fine and easily mixed with non-magnetic particles, the first baffle plate 16 is driven closer to the first opening 14, decreasing the opening size to enhance the screening effect and prevent non-magnetic particles from mixing in. For non-magnetic mineral particles, if they are highly viscous and easily accumulate, the second actuator 19 drives the second baffle plate 18 to increase the opening size of the second opening 15 to accelerate discharge. If a small amount of weakly magnetic particles may remain in the non-magnetic mineral particles, the opening size of the second opening 15 is reduced to prolong their residence time in the tank 11, allowing the weakly magnetic particles to have a greater chance of being adsorbed by the magnetic separator 12, reducing loss. This method achieves automated adjustment without manual adjustment, meeting the needs of unattended production, reducing manual intervention costs and operational errors, and adapting to continuous sorting operations of different batches and materials with different characteristics, enhancing the versatility and adaptability of the mineral concentrator.

[0026] With the help of this type of mineral concentrator, the process of screening magnetic mineral particles is automated, forming a complete, safe and reliable production control system and mineral concentrator index monitoring system; it realizes unmanned operation of key production positions in the mineral concentrator workshop, thereby improving the safety of production activities.

[0027] Please see Figure 1 and Figure 2 As a specific embodiment of the unattended mineral processing device provided by this utility model, the tank 11 is provided with a housing 20 and an operating housing 21 installed on the housing 20, and the housing 20 and the operating housing 21 have a transmission opening 22 that connects them; the first driver 17 is installed in the housing 20, and the operating housing 21 has a sliding outlet 23 on the outer wall near the first opening 14, and the first baffle plate 16 is slidably connected in the operating housing 21; the free end of the first driver 17 is located in the transmission opening 22 and is connected to the first baffle plate 16 in a transmission manner; by setting the housing 20 and the operating housing 21 and connecting them through the transmission opening 22, a clearly defined driving and operating space is formed. The first actuator 17 is installed inside the housing 20, preventing corrosion from material dust and moisture. The first baffle plate 16 slides within the operating housing 21, its movement achieved through transmission at the free end of the first actuator 17 at the transmission opening 22. The sliding outlet 23 of the operating housing 21 provides a stable path for adjusting the first baffle plate 16. This structure is compact and highly protective, ensuring stable and reliable transmission between the first actuator 17 and the first baffle plate 16. In this way, the housing 20 protects the first actuator 17 from harsh working conditions, extending its service life; the operating housing 21 provides guidance for the first baffle plate 16, ensuring precise adjustment of the opening degree; the partitioned design facilitates equipment maintenance and improves operational stability during unattended operation.

[0028] Please see Figure 1 and Figure 2 As a specific embodiment of the unattended mineral processing device provided by this utility model, the first baffle plate 16 has a rack segment 24 on the side near the transmission opening 22. The first driver 17 includes a drive motor 25 and a gear assembly 26 connected to the drive motor 25. The gear assembly 26 passes through the transmission opening 22 and meshes with the rack segment 24. A rack and pinion transmission structure is adopted, with the rack segment 24 provided on the side of the first baffle plate 16 near the transmission opening 22. The first driver 17 consists of the drive motor 25 and the gear assembly 26. The gear assembly 26 passes through the transmission opening 22 and meshes with the rack segment 24. The drive motor 25 drives the gear assembly 26 to rotate, causing the rack segment 24 and the first baffle plate 16 to move linearly to adjust the opening degree of the first opening 14. Its features include high transmission precision and rapid response. The meshing of gears and racks enables precise control of the displacement of the baffle plate, and the power transmission is stable. The mechanical efficiency of the gear and rack transmission is high, which can reduce energy loss during the adjustment process and can stably maintain the position of the first baffle plate 16, ensuring that the opening of the first opening 14 is constant. The combination of the drive motor 25 and the gear assembly 26 facilitates the realization of automated control, and with the help of sensors, it can quickly respond to changes in material characteristics.

[0029] Please see Figure 1 and Figure 2 As a specific embodiment of the unattended mineral processing device provided by this utility model, a guide rail 27 and a slider 28 mounted on the guide rail 27 are provided on the side of the operating housing 21 away from the transmission opening 22. A first baffle plate 16 is fixedly mounted on the slider 28, and the rack segment 24 has a moving distance 29 with the interior of the operating housing 21. By setting the guide rail 27 and slider 28 on the side of the operating housing 21 away from the transmission opening 22, the first baffle plate 16 is fixed on the slider 28, and the moving distance 29 between the rack segment 24 and the interior of the operating housing 21 is maintained, forming a stable guiding and anti-interference structure. The movement of the first baffle plate 16 relies on the guide rail 27 and slider 28 for guidance, ensuring linear motion accuracy and avoiding deviation and jamming; the moving distance 29 between the rack segment 24 and the inner wall of the housing prevents frictional interference during movement, ensuring smooth transmission. The guide rail 27 and slider 28 structure reduces the frictional resistance of the first baffle plate 16 movement, improving adjustment flexibility and response speed; precise guidance ensures small adjustment error of the opening 14, enhancing sorting accuracy.

[0030] Please see Figure 1 and Figure 2As a specific embodiment of the unattended mineral processing device provided by this utility model, the first baffle plate 16 is provided with a smooth section 30 on the side near the slide outlet 23, and the smooth section 30 is slidably and sealingly connected to the slide outlet 23; the smooth section 30 is provided on the side of the first baffle plate 16 near the slide outlet 23, and the smooth section 30 is slidably and sealingly connected to the slide outlet 23; the smooth surface of the smooth section 30 forms a tight fit with the slide outlet 23, ensuring smooth sliding and dynamic sealing when the first baffle plate 16 is moved and adjusted. The sliding seal can effectively prevent materials, moisture and dust in the tank 11 from overflowing from the slide outlet 23, avoiding environmental pollution and material loss; the smooth section 30 reduces the frictional resistance during movement, ensuring a smooth adjustment process; at the same time, it prevents external impurities from entering the operating housing 21, protecting the internal transmission components. The inner wall of the slide outlet 23 is provided with a sealing groove and a sealing ring 31 installed in the sealing groove.

[0031] Please see Figure 1 , Figure 3 and Figure 4 As a specific embodiment of the unattended mineral processing device provided by this utility model, the tank body 11 is provided with two mounting seats 32 arranged axially along the magnetic separator 12, and a rotating shaft 33 is provided between the two mounting seats 32; one end of the second baffle plate 18 is fixedly connected to the rotating shaft 33; the second driver 19 is connected to the rotating shaft 33; by providing two mounting seats 32 axially spaced along the magnetic separator 12 on the tank body 11, the rotating shaft 33 is directly mounted on the mounting seats 32, and one end of the second baffle plate 18 is fixed to the rotating shaft 33 and driven by the second driver 19 connected to the rotating shaft 33. Its feature is that the second baffle plate 18 is oscillating by rotating the rotating shaft 33, thereby realizing the adjustment of the opening degree of the second opening 15. The structure is simple and the adjustment range is flexible. In this way, the cooperation between the rotating shaft 33 and the mounting seat 32 ensures the stable rotation of the baffle plate and high adjustment accuracy; the oscillating adjustment can quickly adapt to different material flow rates and avoid the accumulation or excessive discharge of non-magnetic mineral particles; the second driver 19 drives the rotating shaft 33 to rotate, which is efficient in transmission and has a rapid response.

[0032] Please see Figure 1 , Figure 3 and Figure 4As a specific embodiment of the unattended mineral separator provided by this utility model, the second baffle plate 18 has an arc-shaped surface 34 protruding towards the second opening 15 on the side near the second opening 15. The arc-shaped surface guides the flow of non-magnetic mineral particles, which is more in line with the natural flow trajectory of materials compared to a planar structure. The arc-shaped surface 34 can reduce the accumulation and retention of materials on the surface of the second baffle plate 18, reduce flow resistance, and avoid the decrease in sorting efficiency caused by non-magnetic mineral particles getting stuck. At the same time, the arc-shaped surface 34 can disperse the impact force of materials, reduce wear on the second baffle plate 18, and extend the service life of the components. In addition, the arc design makes the edge of the second opening 15 smooth, which can reduce the probability of magnetic particles mixed in with non-magnetic mineral particles and improve the sorting quality.

[0033] Please see Figure 1 , Figure 3 and Figure 4 As a specific embodiment of the unattended mineral processing device provided by this utility model, the second baffle plate 18 has a thickened portion 35 on the side away from the rotating shaft 33. Through the local thickening design, the structural strength and rigidity of the free end of the second baffle plate 18 are enhanced. The thickened portion 35 can improve the impact resistance of the second baffle plate 18 when blocking or guiding non-magnetic mineral particles, and reduce deformation or damage during long-term use; at the same time, the increased weight can make the second baffle plate 18 more stable when swinging and adjusting, avoid positional displacement caused by material impact, and ensure that the opening of the second opening 15 is precise and controllable.

[0034] Please see Figure 1 , Figure 3 and Figure 4In one specific embodiment of the unattended mineral processing device provided by this utility model, the end of the rotating shaft 33 extends out of the tank 11 and is located outside the tank 11. A transmission rod 36 is fixedly installed at the end of the rotating shaft 33, and the transmission rod 36 is arranged perpendicular to the rotating shaft 33. A mounting plate 37 is provided on the outer side of the tank 11, and the second driver 19 is fixedly installed on the mounting plate 37 and connected to the end of the transmission rod 36 away from the rotating shaft 33. The end of the rotating shaft 33 extends out of the tank 11 and the transmission rod 36 perpendicular to the rotating shaft 33 is fixedly installed. At the same time, the mounting plate 37 is provided on the outer side of the tank 11 to fix the second driver 19. The second driver 19 is connected to the end of the transmission rod 36 away from the rotating shaft 33. The linear driving force of the second driver 19 is converted into the rotational force of the rotating shaft 33 through the transmission rod 36, forming a lever-type transmission structure. In terms of layout, the driving component is placed outside the tank 11 and isolated from the internal material. The lever effect of the transmission rod 36 amplifies the driving force, enabling the second actuator 19 to achieve flexible swinging of the baffle plate with a smaller output. The external placement of the second actuator 19 avoids contact with materials and moisture inside the tank 11, reducing the risk of corrosion damage and extending its service life. The mounting plate 37 provides stable support for the actuator, ensuring transmission accuracy. The external drive assembly of the tank 11 facilitates inspection and maintenance, allowing operation without disassembling the tank 11. The second actuator 19 employs a cylinder and a connecting rod 38. One end of the connecting rod 38 is hinged to the cylinder rod, and the other end is hinged to the end of the transmission rod 36 away from the rotating shaft 33. The cylinder rod, connecting rod 38, and transmission rod 36 form a crank-rocker mechanism.

[0035] Please see Figures 1 to 4 As a specific embodiment of the unattended mineral processing device provided by this utility model, both the first baffle plate 16 and the second baffle plate 18 are provided with wear-resistant layers. By adding a wear-resistant material layer (such as wear-resistant alloy, ceramic coating, etc.) to the surfaces of the first baffle plate 16 and the second baffle plate 18 that are in direct contact with the material, the wear resistance of the first baffle plate 16 and the second baffle plate 18 is enhanced. During the mineral processing process, the flow of mineral particles will continuously scour the first baffle plate 16 and the second baffle plate 18. The wear-resistant layers can significantly reduce the wear rate, extend the service life of the first baffle plate 16 and the second baffle plate 18, and reduce the replacement frequency when unattended.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An unattended mineral processing unit, comprising a frame, a tank mounted on the frame, a magnetic separator mounted on the tank, and a drive device connected to the magnetic separator; wherein the magnetic separation zone within the tank has a first opening on one side for discharging magnetic mineral particles, and a second opening on the other side for discharging non-magnetic mineral particles; characterized in that, The groove is provided with a first baffle plate, a first driver connected to the first baffle plate, a second baffle plate, and a second driver connected to the second baffle plate; the first driver drives the first baffle plate to move closer to or away from the first opening to adjust the opening of the first opening, and the second driver drives the second baffle plate to move closer to or away from the second opening to adjust the opening of the second opening.

2. The unattended mineral processing unit as described in claim 1, characterized in that, The trough is provided with a housing and an operating housing installed on the housing, and the housing and the operating housing have a transmission opening that communicates with each other; the first driver is installed in the housing, and the operating housing has a sliding outlet on its outer wall near the first opening, and the first baffle plate is slidably connected in the operating housing; The free end of the first driver is located in the transmission opening and is connected to the first barrier plate in a transmission manner.

3. The unattended mineral processing unit as described in claim 2, characterized in that, The first barrier plate has a rack segment on the side near the transmission opening, and the first driver includes a drive motor and a gear assembly connected to the drive motor. The gear assembly passes through the transmission opening and meshes with the rack segment.

4. The unattended mineral processing unit as described in claim 3, characterized in that, The operating housing has a guide rail and a slider mounted on the guide rail on the side away from the transmission opening. The first baffle plate is fixedly mounted on the slider. The rack segment has a movable gap with the interior of the operating housing.

5. The unattended mineral processing unit as described in claim 3, characterized in that, The first barrier plate is also provided with a smooth section on the side near the slide outlet, and the smooth section is slidably and sealingly connected to the slide outlet.

6. The unattended mineral processing unit as described in claim 1, characterized in that, The tank is provided with two mounting seats arranged at intervals along the axial direction of the magnetic separator, and a rotating shaft is provided between the two mounting seats; one end of the second barrier plate is fixedly connected to the rotating shaft; the second driver is connected to the rotating shaft.

7. The unattended mineral processing unit as described in claim 6, characterized in that, The second barrier plate has an arcuate surface protruding toward the second opening on the side near the second opening.

8. The unattended mineral processing unit as described in claim 7, characterized in that, The second barrier plate has a thickened portion on the side away from the rotating shaft.

9. The unattended mineral processing unit as described in claim 7, characterized in that, The end of the rotating shaft extends out of the groove and is located outside the groove, and a transmission rod is fixedly provided at the end of the rotating shaft, and the transmission rod is arranged perpendicular to the rotating shaft; a mounting plate is provided on the outer side of the groove, and the second driver is fixedly mounted on the mounting plate and connected to the end of the transmission rod away from the rotating shaft.

10. The unattended mineral processing unit as described in claim 1, characterized in that, Both the first barrier plate and the second barrier plate are provided with a wear-resistant layer.

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