Impurity removal device for coal mine

Abstract

The invention relates to the technical field of coal mine impurity removal equipment, in particular to a coal mine impurity removal device which comprises a vibrating screen, an impurity removal assembly, a visual assembly and a control system, the impurity removal assembly is arranged at a material outlet, a magnetic attraction part is arranged on the impurity removal assembly and can move relative to the vibrating screen, and the visual assembly is arranged on the vibrating screen. The magnetic attraction part is used for attracting magnetic sundries in materials, and the visual assembly is used for collecting information of the magnetic sundries on the flow channel; and the control system controls the magnetic attraction part to move to a material flowing path according to the information of the magnetic sundries collected by the visual assembly. The coal mine impurity removal device provided by the embodiment of the invention has the advantages of convenience in impurity removal, high impurity removal efficiency, high safety performance and the like.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine impurity removal equipment, and in particular to a coal mine impurity removal device. Background Art

[0002] During the mining and production process of coal mines, there will be problems with the mixing of metal debris, which not only affects the quality of coal, but may also cause damage to production equipment and even cause safety accidents. Common metal debris includes picks that fall off the tunnel boring machine, iron chains that fall off the conveyor belt system, steel bars and iron plates used for tunnel support, etc. Once these debris enter the subsequent processing process, such as crushing or screening, they may cause equipment failures, such as conveyor belt tearing, crusher blockage and burning of motors, and in serious cases, threaten the lives of workers. In order to solve this problem, the traditional approach is to remove these metal debris through manual picking. However, the manual picking method is not only inefficient, but also requires workers to work for a long time in a harsh working environment, and the safety of workers cannot be guaranteed. Summary of the invention

[0003] The invention provides a coal mine impurity removal device, which is used to solve the problem of metal impurities mixed in coal blocks in the prior art and realize efficient and safe removal of metal impurities in coal blocks.

[0004] A coal mine impurity removal device provided by an embodiment of the present invention comprises: A vibrating screen, wherein the vibrating screen has a flow channel and a material outlet, and the material outlet is arranged below the flow channel; An impurity removal component, the impurity removal component is arranged at the material outlet, the impurity removal component is provided with a magnetic attraction component, the magnetic attraction component can move relative to the vibrating screen, and the magnetic attraction component is used to absorb magnetic impurities in the material; A visual component, the visual component is used to collect information about magnetic debris on the flow channel; A control system, wherein the control system controls the magnetic attraction component to move to the flow path of the material according to the information of the magnetic debris collected by the visual component.

[0005] The coal mine impurity removal device of the embodiment of the present invention has the advantages of convenient impurity removal, high impurity removal efficiency and high safety performance.

[0006] In some embodiments, the magnetic attraction component has a magnetic attraction surface, and the magnetic attraction surface has a working position and an initial position. At the working position, the magnetic attraction surface is in contact with the material, and at the initial position, the magnetic attraction surface is separated from the material. The magnetic attraction component can rotate relative to the vibrating screen around the width direction of the vibrating screen so that the magnetic attraction surface switches between the working position and the initial position.

[0007] In some embodiments, the magnetic component is arranged below the vibrating screen, and the magnetic component is arranged on a side of the material flow path adjacent to the vibrating screen, in the working position at least part of the magnetic component is arranged on the material flow path, and in the initial position the magnetic component is arranged outside the material flow path.

[0008] In some embodiments, the magnetic attraction component includes a mounting frame and a plurality of magnets, each of the magnets is disposed in the mounting frame, and the plurality of magnets are connected to form the magnetic attraction surface.

[0009] In some embodiments, the impurity removal assembly includes a driving component, and the driving component is connected to the magnetic attraction component to drive the magnetic attraction component to rotate relative to the vibrating screen around the width direction of the vibrating screen.

[0010] In some embodiments, the magnetic attraction component includes a connecting end and a free end, the free end is arranged lower than the connecting end, and the connecting end is rotatably connected to the vibrating screen; The driving component comprises a rope, the rope is connected to the free end, and the driving component drives the free end to rotate by winding the rope.

[0011] In some embodiments, the driving component further includes a motor and a winding member, the output end of the motor is fixedly connected to the winding member and the rope, and the motor can drive the winding member to wind the rope when rotating.

[0012] In some embodiments, the impurity removal component further includes a lifting component, and the magnetic component is disposed on the lifting component, and the lifting component can drive the magnetic component to move along the height direction of the vibrating screen.

[0013] In some embodiments, the coal mine impurity removal device also includes a support, the support includes a vertical frame and a horizontal frame, the horizontal frame is arranged above the vibrating screen, the vertical frame is connected to the horizontal frame to support the horizontal frame, the driving component is arranged on the horizontal frame, and the lifting component is arranged on the vertical frame.

[0014] In some embodiments, the visual component includes a camera and an image processing system. The camera transmits the collected image information to the image processing system. The image processing system analyzes whether there are magnetic debris in the flow channel based on the received image information and can transmit the three-dimensional coordinates of the magnetic debris to the control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a coal mine impurity removal device provided in an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of a coal mine impurity removal device provided by an embodiment of the present invention, with the chassis and the shell forming a material outlet removed.

[0018] Figure 3 It is a schematic structural diagram of a vibrating screen and a magnetic attraction component of a coal mine impurity removal device provided in an embodiment of the present invention.

[0019] Figure 4 It is a structural schematic diagram of the impurity removal component of the coal mine impurity removal device provided by an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the driving components of the coal mine impurity removal device provided by an embodiment of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the magnetic attraction component of the coal mine impurity removal device provided by an embodiment of the present invention in an initial position.

[0022] Figure 7 It is a structural schematic diagram of the magnetic attraction component of the coal mine impurity removal device provided by an embodiment of the present invention in the working position.

[0023] Reference numerals: 1. Vibrating screen; 11. Flow channel; 12. Material outlet; 2. De-impurity assembly; 21. Magnetic attraction component; 210. Magnetic attraction surface; 211. Mounting frame; 212. Magnet; 213. Connecting end; 214. Free end; 22. Driving component; 221. Rope; 222. Motor; 223. Winding member; 23. Lifting component; 3. Visual component; 31. Camera; 4. Bracket; 41. Vertical frame; 42. Horizontal frame; 5. Chassis; 6. First area. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] According to the following Figures 1 to 7 A coal mine impurity removal device according to an embodiment of the present invention is introduced.

[0026] The coal mine impurity removal device of the embodiment of the present invention comprises a vibrating screen 1, an impurity removal component 2, a visual component 3 and a control system. The vibrating screen 1 has a flow channel 11 and a material outlet 12, and the material outlet 12 is arranged below the flow channel 11.

[0027] The impurity removal component 2 is arranged at the material outlet 12. A magnetic attraction component 21 is provided on the impurity removal component 2. The magnetic attraction component 21 can move relative to the vibrating screen 1. The magnetic attraction component 21 is used to absorb magnetic impurities in the material.

[0028] The visual component 3 is used to collect information about magnetic debris on the flow channel 11 .

[0029] The control system controls the magnetic attraction component 21 to move to the flow path of the material according to the information of the magnetic debris collected by the visual component 3.

[0030] For example, Figures 1 to 7 As shown, the coal or gangue blocks are vibrated on the vibrating screen 1, spread evenly and thinly, and then the metal impurities inside are exposed. A shell is provided at the outlet of the flow channel 11, and the bottom of the shell is opened to form a material outlet 12.

[0031] The flow channel 11 is inclined, and materials such as coal blocks, gangue or metal debris flow together in the flow channel 11 to the material outlet 12. The material outlet 12 is arranged below the flow channel 11. The material falls from the flow channel 11 to the material outlet 12 at a preset speed, and its movement trajectory is a parabola.

[0032] The magnetic component 21 is arranged on the flow path of the material, for example, the magnetic component 21 is arranged at the tail of the flow channel 11 or below the flow channel 11. When the material passes through the magnetic component 21, it rubs against the surface of the magnetic component 21, and the magnetic debris is adsorbed on the magnetic component 21 and remains motionless. Since non-metallic materials such as coal blocks or gangue do not have magnetism, they will not be affected by the magnetic component 21, and will continue to flow along the original path and finally pass through the material outlet 12. Therefore, by setting the magnetic component 21, the magnetic debris can be effectively separated from the coal blocks or other non-metallic materials, ensuring the safety and efficiency of the subsequent processing process.

[0033] The position of the magnetic component 21 is set according to actual conditions. For example, the magnetic component 21 is set at the tail of the flow channel 11. Alternatively, the area formed by the material falling path is the first area 6, one side of the first area 6 is adjacent to the vibrating screen 1, and the other side of the first area 6 is away from the vibrating screen 1. The magnetic component 21 is set on the side of the first area 6 adjacent to the vibrating screen 1. Alternatively, the magnetic component 21 is set on the side of the first area 6 away from the vibrating screen 1.

[0034] The magnetic component 21 can move relative to the vibrating screen 1, which means that the magnetic component 21 can move or rotate relative to the vibrating screen 1. For example, when the magnetic component 21 is not working, it is located outside the flow path of the material, and the magnetic component 21 does not contact the material. When magnetic debris appears, the magnetic component 21 can move horizontally or rise vertically to the flow path of the material, or the magnetic component 21 rotates a preset angle to the flow path of the material.

[0035] The visual component 3 can collect material information on the vibrating screen 1, and then transmit the collected image information to the control system. The control system analyzes whether there is metal debris on the image information. When the control system determines that there are magnetic debris on the vibrating screen 1, it controls the magnetic attraction component 21 to move to the flow path of the material.

[0036] In the related art, a picking assembly is arranged above the vibrating screen 1 to pick up metal debris. The picking assembly is generally provided with a mechanical arm, a magnetic suction piece, a clamping claw, etc., and has a complex structure, requires regular inspection and maintenance, and has a high cost. Moreover, since the mechanical arm needs to move to the position of each debris one by one and pick it up through the clamping claw or the magnetic suction piece, the entire picking process is relatively time-consuming, and the grabbing efficiency is low. Moreover, when the debris is in the lower layer of the material, the debris is covered with coal blocks, and it is not easy for the picking assembly to remove the debris.

[0037] The coal mine impurity removal device of the embodiment of the present invention sets the magnetic attraction component 21 below the vibrating screen 1. When the material containing magnetic impurities falls from the flow channel 11, the magnetic attraction component 21 can automatically absorb the magnetic impurities therein, thereby effectively separating the magnetic impurities from coal blocks or other non-magnetic materials. The coal mine impurity removal device of the embodiment of the present invention does not require workers to pick up the impurities, and the picking efficiency of the automated equipment is high, and the personal safety of the workers is guaranteed.

[0038] Compared with the traditional picking assembly with a complex structure such as a mechanical arm, a magnetic suction part and a clamping claw set above the vibrating screen 1, the advantages of the embodiment of the present invention are significant. First of all, the mechanical arm of the traditional picking assembly needs to move to each detected metal debris position one by one, and pick it up through the clamping claw or the magnetic suction part. This process is not only time-consuming, but also leads to low overall impurity removal efficiency. In the coal mine impurity removal device of the embodiment of the present invention, the magnetic suction part 21 is fixed and only needs to generate enough magnetic force to absorb magnetic impurities when the material passes over it, so the whole impurity removal process becomes simpler and more efficient. Moreover, when the magnetic impurities are in the lower layer of the material, the magnetic suction part 21 can still absorb the magnetic impurities, and the impurity removal effect is good.

[0039] Secondly, since the coal mine impurity removal device of the embodiment of the present invention does not require a complex mechanical arm and a clamping claw system, the complexity of the equipment is reduced. This not only reduces the initial investment cost of the equipment, but also reduces the workload and maintenance cost of daily maintenance. In addition, the fixed magnetic suction component 21 can work continuously and will not be limited by the response speed of the mechanical arm, so it can maintain a stable impurity removal efficiency when processing a large amount of materials.

[0040] Therefore, the coal mine impurity removal device according to the embodiment of the present invention has the advantages of convenient impurity removal and high impurity removal efficiency.

[0041] In some embodiments, Figure 2 and Figure 4 As shown, the magnetic component 21 has a magnetic surface 210, and the magnetic surface 210 has a working position and an initial position. In the working position, the magnetic surface 210 contacts the material, and in the initial position, the magnetic surface 210 is separated from the material. The magnetic component 21 can rotate relative to the vibrating screen 1 around the width direction of the vibrating screen 1 so that the magnetic surface 210 switches between the working position and the initial position.

[0042] For example, the width direction of the vibrating screen 1 is Figure 2 In the left and right directions shown in the figure, in the initial position, the magnetic surface 210 is not in contact with the material, and in the working position, the magnetic surface 210 is in contact with the material, and the magnetic surface 210 can effectively absorb the magnetic debris passing over it. In the case of a large material flow or a lot of debris, the magnetic surface 210 can be frequently turned back to the working position to enhance the adsorption capacity, thereby facilitating the removal of debris.

[0043] It is understandable that, when in the working position, the angle of the magnetic surface 210 can be fine-tuned by rotating the magnetic component 21, so as to achieve the best adsorption effect.

[0044] The coal mine impurity removal device of the embodiment of the present invention enhances the flexibility and practicality of the device through the rotatable design. In different application scenarios, not only can the position of the magnetic surface 210 be adjusted according to actual needs, but also the angle between the magnetic surface 210 and the flow channel 11 can be adjusted by rotation to achieve the best adsorption effect.

[0045] In some embodiments, the magnetic component 21 is arranged below the vibrating screen 1, and the magnetic component 21 is arranged on a side of the material flow path adjacent to the vibrating screen 1. In the working position, at least part of the magnetic component 21 is arranged on the material flow path, and in the initial position, the magnetic component 21 is arranged outside the material flow path.

[0046] For example, since the operating parameters of the vibrating screen 1 are generally fixed, the initial velocity of the material falling from the flow channel 11 is also fixed. The flow path of most materials is usually within a specific area, namely the first area 6 (e.g. Figure 6 and Figure 7 The magnetic attraction component 21 is arranged on a side of the first area 6 adjacent to the vibrating screen 1 .

[0047] In the working position, a part of the magnetic component 21 extends into the first area 6, or the magnetic component 21 extends into the first area 6 in its entirety, that is, in the working position, part of the magnetic surface 210 contacts the material or the entire magnetic surface 210 contacts the material, the material slides over the surface of the magnetic surface 210, the magnetic debris is adsorbed on the magnetic surface 210, and the material changes its original falling trajectory after passing through the magnetic surface 210, and falls into the material outlet 12 according to the new falling trajectory. In the initial position, the magnetic surface 210 does not contact the material, the magnetic surface 210 is away from the first area 6, and the material falls along the original trajectory.

[0048] The coal mine impurity removal device of the embodiment of the present invention switches the magnetic attraction component 21 between the working position and the initial position, so as to facilitate the adsorption of magnetic debris in the flow channel 11, and in the initial position, the magnetic attraction surface 210 is not in contact with the material, thereby avoiding the magnetic attraction surface 210 being hit by the material for a long time, thereby extending the service life of the magnetic attraction component 21 and reducing maintenance costs.

[0049] In some embodiments, the magnetic attraction component 21 includes a mounting frame 211 and a plurality of magnets 212 , each magnet 212 is disposed in the mounting frame 211 , and the plurality of magnets 212 are connected to form a magnetic attraction surface 210 .

[0050] like Figure 4As shown, there is a slot on the mounting frame 211, and the magnet 212 is fixed in the slot, and the surfaces of multiple magnets 212 are connected to form a magnetic attraction surface 210. By adjusting the number and arrangement of the magnets 212 in the mounting frame 211, different material processing requirements can be flexibly adapted. For example, when there are many magnetic impurities in the material, the number of magnets 212 can be increased to enhance the adsorption capacity; conversely, the number of magnets 212 can be reduced. In addition, if one of the magnets 212 is damaged or fails, only the single magnet 212 needs to be replaced without replacing the entire magnetic attraction component 21. This not only reduces maintenance costs, but also reduces repair time and downtime, and improves equipment availability and production efficiency.

[0051] Optionally, the number of magnets 212 is 3-10, for example, 3, 7 or 10.

[0052] In some embodiments, Figures 1 to 5 As shown, the impurity removal component 2 includes a driving component 22, and the driving component 22 is connected to the magnetic attraction component 21 to drive the magnetic attraction component 21 to rotate relative to the vibrating screen 1 around the width direction of the vibrating screen 1.

[0053] There are many ways to set the driving component 22, as long as it can realize the switching between the working position and the initial position of the magnetic attraction component 21. For example, the driving component 22 is set at both ends of the magnetic attraction component 21, and a rotating shaft is provided on the magnetic attraction component 21. The driving component 22 controls the rotation angle of the rotating shaft to control the rotation of the magnetic attraction component 21.

[0054] Alternatively, the driving component 22 is disposed on the top of the magnetic component 21, the driving component 22 is connected to the bottom of the magnetic component 21, and the top of the magnetic component 21 is rotatably connected to the vibrating screen 1 or a frame near the vibrating screen 1. The driving component 22 causes the bottom of the magnetic component 21 to rotate relative to the top thereof, thereby controlling the magnetic component 21 to switch between the working position and the initial position.

[0055] There are many driving modes for the driving component 22, for example, motor 222 driving, hydraulic driving, pneumatic driving, etc.

[0056] In some embodiments, Figures 1 to 5 As shown, the magnetic attraction component 21 includes a connecting end 213 and a free end 214 . The free end 214 is arranged lower than the connecting end 213 , and the connecting end 213 is rotatably connected to the vibrating screen 1 .

[0057] The driving component 22 includes a rope 221 . The rope 221 is connected to the free end 214 . The driving component 22 drives the free end 214 to rotate by winding the rope 221 .

[0058] For example, the upper end of the magnetic component 21 is a connection end 213, the lower end of the magnetic component 21 is a free end 214, the connection end 213 is provided with a hinge shaft, and the connection end 213 is connected to the frame of the vibrating screen 1 through the hinge shaft, so that the magnetic component 21 can rotate relative to the vibrating screen 1. The rope 221 is tied to both sides of the free end 214 to avoid the flow channel 11, thereby avoiding affecting the flow of materials.

[0059] When the magnetic component 21 is in the initial position, the magnetic surface 210 remains vertical under the action of gravity, and the free end 214 is directly below the connecting end 213. At this time, the rope 221 is not arranged vertically, but is set at a preset angle to the vertical direction. When the magnetic component 21 needs to be moved to the working position, the driving component 22 retracts the rope 221 upward. Since the rope 221 is set at a preset angle to the vertical direction, the rope 221 can drive the free end 214 to rotate relative to the connecting end 213 while moving upward until it reaches the working position. When the magnetic component 21 switches from the working position to the initial position, the driving component 22 releases the rope 221, and the free end 214 moves downward under the action of gravity until it returns to the initial position.

[0060] The coal mine impurity removal device of the embodiment of the present invention utilizes the rope 221 to drive the magnetic attraction component 21 to rotate. The driving structure of the rope 221 is relatively simple, the maintenance cost is low, and it is not easy to fail.

[0061] Optionally, two driving components 22 are provided, and the two driving components 22 are respectively connected to two sides of the free end 214 .

[0062] In some embodiments, the driving component 22 further includes a motor 222 and a winding member 223 , the output end of the motor 222 is fixedly connected to the winding member 223 and the rope 221 , and the motor 222 can drive the winding member 223 to wind the rope 221 when rotating.

[0063] For example, Figure 4 and Figure 5 As shown, one end of the rope 221 is tied to the output end of the motor 222 and then wound around the winding member 223. When the motor 222 rotates, the winding member 223 rotates accordingly, thereby controlling the winding and releasing of the rope 221.

[0064] Optionally, the winding member 223 is a disk, and a storage groove is provided on the outer circumference of the disk to wind the rope 221. Alternatively, as long as the length of the rope 221 wound and released by the winding member 223 during rotation can enable the magnetic attraction component 21 to switch between the working position and the initial position, the winding member 223 can also be set to be fan-shaped or semicircular.

[0065] In other embodiments, a guide member is further provided near the winding member 223 to assist the rope 221 in moving up and down, so as to prevent the rope 221 from shaking too much and affecting the winding of the rope 221 by the winding member 223 .

[0066] In some embodiments, the impurity removal component 2 further includes a lifting component 23 , and the magnetic component 21 is disposed on the lifting component 23 . The lifting component 23 can drive the magnetic component 21 to move along the height direction of the vibrating screen 1 .

[0067] For example, Figure 4 and Figure 5 As shown, the height direction of the vibrating screen 1 is the up-down direction shown in the figure, and the magnetic attraction component 21 is detachably arranged on the lifting component 23. The lifting component 23 is a slider and a slide rail, the slider can move up and down along the slide rail, and the magnetic attraction component 21 is arranged on the slider. The slider and the slide rail are common mechanical components, and the specific structure is not repeated here.

[0068] When the magnetic component 21 is in working state, its magnetic surface 210 is located below the material flow channel 11, effectively absorbing the passing magnetic debris. When cleaning is required, the lifting component 23 is started to drive the magnetic component 21 to move upward until it reaches a safe position away from the material flow channel 11. The staff can perform cleaning work in a safer environment, reducing the risk of accidental contact with the material flow, and will not delay the continuous operation of the vibrating screen 1, thereby improving production efficiency.

[0069] In addition, the vibrating screen 1 can be shut down during the cleaning process, thereby further ensuring the safety of the staff.

[0070] In some embodiments, the coal mine impurity removal device also includes a support 4, which includes a vertical frame 41 and a horizontal frame 42. The horizontal frame 42 is arranged above the vibrating screen 1. The vertical frame 41 is connected to the horizontal frame 42 to support the horizontal frame 42. The driving component 22 is arranged on the horizontal frame 42, and the lifting component 23 is arranged on the vertical frame 41.

[0071] For example, Figure 1 and Figure 2 As shown, a vertical frame 41 is provided on both sides of the vibrating screen 1, a horizontal frame 42 is provided above the vertical frame 41, and the horizontal frame 42 is located above the vibrating screen 1, the motor 222 and the winding member 223 are both provided on the horizontal frame 42, and the rope 221 passes through the gap on the horizontal frame 42 and is connected to the magnetic attraction component 21 provided on the lifting component 23.

[0072] In some embodiments, the visual component 3 includes a camera 31 and an image processing system. The camera 31 transmits the collected image information to the image processing system. The image processing system analyzes whether there is debris in the flow channel 11 according to the received image information, and can transmit the three-dimensional coordinates of the debris to the control system.

[0073] For example, Figure 1 and Figure 2 As shown, the visual component 3 also includes a light source, and the camera 31 and the light source are both mounted on a horizontal frame 42 .

[0074] When the coal mine debris removal device of the embodiment of the present invention is working, when the image processing system determines that there are debris in the flow channel 11, the three-dimensional coordinates of the debris are transmitted to the control system.

[0075] The control system controls the driving component 22 to start according to the received information. At this time, the motor 222 drives the magnetic component 21 from the initial position to the working position through the rope 221. After the magnetic debris is adsorbed by the magnetic component 21, the magnetic component 21 returns to the initial position.

[0076] It is understandable that the running speed of the magnetic component 21 is related to the coordinates of the debris, the distance between the debris and the material outlet 12 is divided into a plurality of preset distances, and these preset distances are matched one by one with the plurality of rotation speeds of the motor 222, and the control system can automatically adjust the running speed of the magnetic component 21 according to the position of the debris. In this way, the magnetic component 21 adopts different running speeds according to the position of the debris, thereby achieving more accurate and smooth operation. This setting can improve the flexibility of the magnetic component 21, thereby improving the debris removal effect.

[0077] Optionally, the coal mine impurity removal device further comprises a chassis 5, in which circuit elements required for the operation of the coal mine impurity removal device are arranged.

[0078] Optionally, the control system includes a local controller and a remote controller, the local controller and the remote controller are connected via a network, both the local controller and the remote controller are provided with a human-computer interaction interface, and the operation of the coal mine impurity removal device can be controlled locally and remotely.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coal mine impurity removal device, characterized in that: include: A vibrating screen, wherein the vibrating screen has a flow channel and a material outlet, and the material outlet is arranged below the flow channel; An impurity removal component, the impurity removal component is arranged at the material outlet, the impurity removal component is provided with a magnetic attraction component, the magnetic attraction component can move relative to the vibrating screen, and the magnetic attraction component is used to absorb magnetic impurities in the material; A visual component, the visual component is used to collect information about magnetic debris on the flow channel; A control system, wherein the control system controls the magnetic attraction component to move to the flow path of the material according to the information of the magnetic debris collected by the visual component.

2. The coal mine impurity removal device according to claim 1, characterized in that: The magnetic attraction component has a magnetic attraction surface, and the magnetic attraction surface has a working position and an initial position. At the working position, the magnetic attraction surface is in contact with the material, and at the initial position, the magnetic attraction surface is separated from the material. The magnetic attraction component can rotate relative to the vibrating screen around the width direction of the vibrating screen so that the magnetic attraction surface switches between the working position and the initial position.

3. The coal mine impurity removal device according to claim 2, characterized in that: The magnetic attraction component is arranged below the vibrating screen, and is arranged on a side of the material flow path adjacent to the vibrating screen. In the working position, at least part of the magnetic attraction component is arranged on the material flow path, and in the initial position, the magnetic attraction component is arranged outside the material flow path.

4. The coal mine impurity removal device according to claim 3, characterized in that: The magnetic attraction component includes a mounting frame and a plurality of magnets, each of the magnets is arranged in the mounting frame, and the plurality of magnets are connected to form the magnetic attraction surface.

5. The coal mine impurity removal device according to any one of claims 1 to 4, characterized in that: The impurity removal component includes a driving component, and the driving component is connected to the magnetic attraction component to drive the magnetic attraction component to rotate relative to the vibrating screen around the width direction of the vibrating screen.

6. The coal mine impurity removal device according to claim 5, characterized in that: The magnetic attraction component includes a connecting end and a free end, wherein the free end is arranged lower than the connecting end, and the connecting end is rotationally connected to the vibrating screen; The driving component comprises a rope, the rope is connected to the free end, and the driving component drives the free end to rotate by winding the rope.

7. The coal mine impurity removal device according to claim 6, characterized in that: The driving component also includes a motor and a winding member. The output end of the motor is fixedly connected to the winding member and the rope. When the motor rotates, it can drive the winding member to wind the rope.

8. The coal mine impurity removal device according to claim 6 or 7, characterized in that: The impurity removal component also includes a lifting component, and the magnetic attraction component is arranged on the lifting component. The lifting component can drive the magnetic attraction component to move along the height direction of the vibrating screen.

9. The coal mine impurity removal device according to claim 8, characterized in that: It also includes a bracket, which includes a vertical frame and a horizontal frame. The horizontal frame is arranged above the vibrating screen, the vertical frame is connected to the horizontal frame to support the horizontal frame, the driving component is arranged on the horizontal frame, and the lifting component is arranged on the vertical frame.

10. The coal mine impurity removal device according to claim 1, characterized in that: The visual component includes a camera and an image processing system. The camera transmits the collected image information to the image processing system. The image processing system analyzes whether there are magnetic debris in the flow channel based on the received image information and can transmit the three-dimensional coordinates of the magnetic debris to the control system.

Images