Multistage tungsten ore sorting device

Abstract

The utility model relates to a multistage tungsten ore sorting device in the technical field of ore sorting equipment, which comprises a support, and a plurality of sorting boxes are sequentially arranged on the support. Screens are arranged in the sorting boxes respectively, filtering holes of the multiple screens are sequentially decreased, and a discharging opening of each sorting box communicates with a feeding opening of the adjacent sorting box. Wherein a magnetic separation assembly is arranged at the feeding port of one separation box and comprises a rotating shaft and a stepping motor, the two ends of the rotating shaft are rotationally connected with the inner walls of the separation boxes through bearings correspondingly, one end of the rotating shaft penetrates through the separation boxes and then is connected with the stepping motor, and a plurality of magnetic separation pieces are evenly fixed to the rotating shaft in the circumferential direction. The tungsten ore multi-stage separation device is reasonable in structure, easy to use, capable of conducting multi-stage separation on tungsten ore and removing magnetic impurities, capable of improving the separation effect, high in separation efficiency and good in separation effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of mineral processing equipment, specifically relating to a multi-stage tungsten ore sorting device. Background Technology

[0002] After tungsten ore is mined, it often requires multiple processing steps to extract tungsten. Due to the low tungsten content in tungsten ore, sorting is frequently necessary during actual processing. Patent CN208321305U discloses a high-efficiency tungsten ore sorting device, including a base. A first side plate and a second side plate are fixedly connected to the upper surface of the base. The first side plate has a resonance groove inside, and a first spring is fixedly connected to the inner side of the resonance groove. A resonance rod is fixedly connected to the other end of the first spring, and a frame is fixedly connected to the other end of the resonance rod. A mesh plate is fixedly embedded inside the frame, and a telescopic rod is fixedly connected to the other end of the frame. This high-efficiency tungsten ore sorting device can effectively vibrate batches of tungsten ore during sorting. Through mutual contact and friction, surface debris or mud can be vibrated off and screened out. However, it cannot perform multi-stage sorting of tungsten ore or remove magnetic impurities. Therefore, a multi-stage tungsten ore sorting device is needed to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in existing technologies, this utility model provides a multi-stage tungsten ore sorting device, comprising a support frame on which multiple sorting boxes are sequentially arranged. Each sorting box contains a screen with progressively smaller pore sizes. The outlet of one sorting box is connected to the inlet of an adjacent sorting box. A magnetic separation component is located at the inlet of one of the sorting boxes. This component includes a rotating shaft and a stepper motor. Both ends of the rotating shaft are rotatably connected to the inner wall of the sorting box via bearings. One end of the shaft passes through the sorting box and connects to the stepper motor. Multiple magnetic separator plates are uniformly fixed circumferentially on the rotating shaft. The multiple screens enable multi-stage sorting of the tungsten ore. During the sorting process, the magnetic separation component adsorbs magnetic substances in the tungsten ore, improving the sorting effect.

[0004] Preferably, a magnetic separation layer is fixed on the rotating shaft, and both the magnetic separation plate and the magnetic separation layer are electromagnets. When the electromagnet is energized, it generates magnetism, which can adsorb magnetic impurities in the tungsten ore. When the energizer is stopped, the magnetism disappears, facilitating the removal of the adsorbed impurities.

[0005] Preferably, a conductive slip ring is connected to one end of the rotating shaft, and the electromagnet is connected to the power supply through the conductive slip ring. This arrangement ensures that the electromagnet is switched on and off while the rotating shaft is rotating.

[0006] Preferably, the top of the sorting box is connected to an exhaust pipe via a conduit, and the exhaust pipe is connected to a dust collector. This prevents dust generated during the sorting process from polluting the air.

[0007] Preferably, the magnetic separation component is equipped with a scraping component, which includes a scraper. The scraper has a shaped hole that matches the rotating shaft and the magnetic separator. The scraper has two symmetrical threaded holes, and a screw is threaded into each of the two threaded holes. The two screws are parallel to the rotating shaft. The two ends of the screws are rotatably connected to the inner wall of the corresponding sorting box through bearings. The screws are connected to a drive. The sorting box corresponding to the scraping component has an openable slag discharge port. A slag receiving frame is provided at the slag discharge port. The slag receiving frame is connected to the sorting box through a horizontal telescopic rod. This setup allows the slag discharge port to be opened after magnetic separation. Under the action of the horizontal telescopic rod, the slag receiving box enters the sorting box and is positioned below the magnetic separation assembly. The forward and reverse motors start, and the two screws rotate synchronously, driving the scraper to move. At this time, the die hole aligns with the rotating shaft and magnetic separator. The rotating shaft and magnetic separator pass through the die hole, and the scraper scrapes the outer surface of the rotating shaft and magnetic separator. The scraped impurities fall into the slag receiving frame. After the scraping operation is completed, the forward and reverse motors reverse, the scraper resets, and the horizontal telescopic rod drives the slag receiving frame out of the sorting box for further processing.

[0008] Preferably, the horizontal telescopic rod is an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

[0009] Preferably, the drive includes a forward and reverse motor, wherein two screws are located on the same side and are connected to pulleys after passing through the sorting box. One screw is connected to the forward and reverse motor, and the two pulleys are connected by a belt, which is fitted with a tensioner.

[0010] This utility model also includes other components that enable the normal operation of a multi-stage tungsten ore sorting device, such as control components for stepper motors, control components for forward and reverse motors, control components for electric push rods, control components for hydraulic cylinders, control components for pneumatic cylinders, and control components for conveyors, etc., all of which are conventional technical means in the art. Furthermore, devices or components not limited in this utility model, such as stepper motors, electric push rods, hydraulic cylinders, pneumatic cylinders, dust collectors, etc., all employ conventional technical means and conventional equipment in the art.

[0011] Working principle: During operation, the material enters through the feed inlet of the first sorting box, is sorted, and then enters the second sorting box for further sorting. The tungsten ore is sorted in multiple stages through the screens in each sorting box. During the sorting process, the magnetic separation components adsorb magnetic substances in the tungsten ore. Specifically, the tungsten ore enters the sorting box and falls onto the magnetic separation components. The stepper motor drives the rotating shaft to rotate continuously. Non-magnetic ore falls onto the screens in the sorting box and is further sorted, while magnetic impurities stick to the magnetic separation components and are finally processed, thereby improving the sorting effect.

[0012] After the sorting is completed or after a period of time, the feeding is stopped, the slag discharge port is opened, and the slag receiving box enters the sorting box and is located below the magnetic separation component under the action of the horizontal telescopic rod. The forward and reverse motors are started, and the two screws rotate synchronously, driving the scraper to move. At this time, the die hole corresponds to the rotating shaft and magnetic separation plate. The rotating shaft and magnetic separation plate pass through the die hole, and the scraper performs a scraping operation on the outer surface of the rotating shaft and magnetic separation plate. The scraped impurities fall into the slag receiving frame. After the scraping operation is completed, the forward and reverse motors reverse, the scraper is reset, and the horizontal telescopic rod drives the slag receiving frame to exit from the sorting box for separate processing.

[0013] The beneficial effects of this utility model are: reasonable structure, simple to use, can perform multi-stage sorting of tungsten ore and remove magnetic impurities, improve the sorting effect, and have high sorting efficiency and good sorting effect. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of a multi-stage tungsten ore sorting device according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A sectional view;

[0017] Figure 3 for Figure 1 Top view.

[0018] In the diagram: 1. Conveyor; 2. First sorting box; 3. Second sorting box; 4. Third sorting box; 5. Discharge pipe; 6. Exhaust pipe; 7. Stepper motor; 8. Forward and reverse motor; 9. Tensioner wheel; 10. Belt; 11. Feed inlet; 12. Screen 1; 13. Screen 2; 14. Screen 3; 15. Screw; 16. Scraper; 17. Rotary shaft; 18. Slag receiving frame; 19. Magnetic separator; 20. Horizontal telescopic rod. Detailed Implementation

[0019] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0020] Example

[0021] like Figure 1-3As shown, this utility model provides a multi-stage tungsten ore sorting device, including a support frame. A first sorting box 2, a second sorting box 3, and a third sorting box 4 are sequentially arranged on the support frame. The first sorting box 2, the second sorting box 3, and the third sorting box 4 are respectively provided with a screen 12, a screen 23, and a screen 34, with the filter holes of the multiple screens decreasing in size sequentially. The discharge port of the first sorting box 2 is connected to the inlet 11 of the second sorting box 3, and the discharge port of the second sorting box 3 is connected to the inlet 11 of the third sorting box 4. A magnetic separation component is provided at the inlet 11 of the third sorting box 4. The magnetic separation component includes a rotating shaft 17 and a stepper motor 7. The two ends of the rotating shaft 17 are rotatably connected to the inner wall of the third sorting box 4 through bearings. One end of the rotating shaft 17 passes through the third sorting box 4 and is connected to the stepper motor 7. Multiple magnetic separation plates 19 are uniformly fixed along the circumference of the rotating shaft 17. The belt conveyor 10 feeds the tungsten ore into the first sorting box 2, where it is sequentially sorted through screen 12, screen 23, and other screens. During the sorting process, the magnetic separation component adsorbs the magnetic substances in the tungsten ore. The sorted tungsten ore is discharged from the discharge pipe 5 at the discharge port of the third sorting box 4, thus improving the sorting effect.

[0022] A magnetic separation layer is fixed on the rotating shaft 17, and both the magnetic separation plate 19 and the magnetic separation layer are electromagnets. When the electromagnet is energized, it generates magnetism, which can adsorb magnetic impurities in the tungsten ore. When the energizer is stopped, the magnetism disappears, making it easy to clean the adsorbed impurities.

[0023] One end of the rotating shaft 17 is connected to a conductive slip ring, and the electromagnet is connected to the power supply through the conductive slip ring. This arrangement allows the electromagnet to be switched on and off while the rotating shaft 17 is rotating.

[0024] The tops of the first sorting box 2, the second sorting box 3, and the third sorting box 4 are each connected to an exhaust pipe 6 via a conduit, and the exhaust pipe 6 is connected to a dust collector. This prevents dust generated during the sorting process from polluting the air.

[0025] The magnetic separation assembly is equipped with a scraping assembly, which includes a scraper 16. The scraper 16 has a shaped hole that matches the rotating shaft 17 and the magnetic separator 19. The scraper 16 has two symmetrical threaded holes, and screws 15 are threaded into the two threaded holes respectively. The two screws 15 are parallel to the rotating shaft 17. The two ends of the screws 15 are rotatably connected to the inner wall of the corresponding third sorting box 4 through bearings. The screws 15 are connected to a drive. The third sorting box 4 corresponding to the scraping assembly is equipped with an openable slag discharge port. A slag receiving frame 18 is provided at the slag discharge port. The slag receiving frame 18 is connected to the third sorting box 4 through a horizontal telescopic rod 20. This setup allows the slag discharge port to be opened after magnetic separation. Under the action of the horizontal telescopic rod 20, the slag receiving box enters the third sorting box 4 and is located below the magnetic separation assembly. The forward and reverse motor 8 starts, and the two screws 15 rotate synchronously, driving the scraper 16 to move. At this time, the shaped hole corresponds to the rotating shaft 17 and the magnetic separator 19. The rotating shaft 17 and the magnetic separator 19 pass through the shaped hole, and the scraper 16 scrapes the outer surface of the rotating shaft 17 and the magnetic separator 19. The scraped impurities fall into the slag receiving frame 18. After the scraping operation is completed, the forward and reverse motor 8 reverses, the scraper 16 resets, and the horizontal telescopic rod 20 drives the slag receiving frame 18 to exit from the third sorting box 4 for further processing.

[0026] The horizontal telescopic rod 20 is an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

[0027] The drive includes a forward and reverse motor 8, wherein two screws 15 are located on the same side and one end of each screw passes through the third sorting box 4 and is connected to a belt pulley 10. One of the screws 15 is connected to the forward and reverse motor 8, and the two belt pulleys 10 are connected by a belt 10. The belt 10 is equipped with a tensioning pulley 9.

[0028] During operation, the material is fed into the first sorting box via a conveyor (belt conveyor). After being sorted by the screen, it enters the second sorting box for further sorting. The tungsten ore is sorted in multiple stages by the screens in each sorting box. During the sorting process, the magnetic separation components adsorb magnetic substances in the tungsten ore. Specifically, the tungsten ore enters the sorting box and falls onto the magnetic separation components. The stepper motor drives the rotating shaft to rotate continuously. Non-magnetic ore falls onto the screens in the sorting box and is further sorted, while magnetic impurities stick to the magnetic separation components and are finally processed, thereby improving the sorting effect.

[0029] After the sorting is completed or after a period of time, the feeding is stopped, the slag discharge port is opened, and the slag receiving box enters the sorting box and is located below the magnetic separation component under the action of the horizontal telescopic rod. The forward and reverse motors are started, and the two screws rotate synchronously, driving the scraper to move. At this time, the die hole corresponds to the rotating shaft and magnetic separation plate. The rotating shaft and magnetic separation plate pass through the die hole, and the scraper performs a scraping operation on the outer surface of the rotating shaft and magnetic separation plate. The scraped impurities fall into the slag receiving frame. After the scraping operation is completed, the forward and reverse motors reverse, the scraper is reset, and the horizontal telescopic rod drives the slag receiving frame to exit from the sorting box for separate processing.

[0030] The screens 1, 2, and 3 in the above embodiments can be inclined vibrating screens. The structure and working principle of the vibrating screen are existing technologies and will not be described in detail here.

[0031] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage tungsten ore sorting device, comprising a support frame, on which a plurality of sorting boxes are sequentially arranged; each sorting box is provided with a screen, the filter holes of the plurality of screens decreasing in size sequentially, and the outlet of the sorting box is connected to the inlet of the adjacent sorting box; characterized in that: One of the sorting boxes has a magnetic separation assembly at its feed inlet. The magnetic separation assembly includes a rotating shaft and a stepper motor. The two ends of the rotating shaft are rotatably connected to the inner wall of the sorting box through bearings. One end of the rotating shaft passes through the sorting box and is connected to the stepper motor. Multiple magnetic separators are evenly fixed on the rotating shaft along the circumference.

2. The tungsten ore multi-stage sorting device according to claim 1, characterized in that: A magnetic separation layer is fixed on the rotating shaft, and both the magnetic separation plate and the magnetic separation layer are electromagnets.

3. The tungsten ore multi-stage sorting device according to claim 2, characterized in that: One end of the rotating shaft is connected to a conductive slip ring, and the electromagnet is connected to the power supply through the conductive slip ring.

4. The tungsten ore multi-stage sorting device according to claim 1, characterized in that: The top of the sorting box is connected to an exhaust pipe via a conduit.

5. The tungsten ore multi-stage sorting device according to claim 1, characterized in that: The magnetic separation component is equipped with a scraping component, which includes a scraper. The scraper has a shaped hole that matches the rotating shaft and the magnetic separator. The scraper has two symmetrical threaded holes, and a screw is threaded into each of the two threaded holes. The two screws are parallel to the rotating shaft. The two ends of the screws are rotatably connected to the inner wall of the corresponding sorting box through bearings. The screws are connected to a drive. The sorting box corresponding to the scraping component has an openable slag discharge port. A slag receiving frame is provided at the slag discharge port. The slag receiving frame is connected to the sorting box through a horizontal telescopic rod.

6. A multi-stage tungsten ore sorting device according to claim 5, characterized in that: The horizontal telescopic rod is an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

7. A multi-stage tungsten ore sorting device according to claim 5, characterized in that: The drive includes a forward and reverse motor, wherein two screws are located on the same side and are connected to pulleys after passing through the sorting box. One of the screws is connected to the forward and reverse motor, and the two pulleys are connected by a belt, which is fitted with a tensioner.

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