Permanent-magnet drum separator

Abstract

The utility model discloses a kind of permanent-magnetic drum-type magnetic separators, specifically related to coal mine material magnetic separation technical field, including rack, wherein, the inside rotation of rack is equipped with magnetic separation drum, and one end of magnetic separation drum is provided with driving motor, and the bottom of rack is provided with first discharge port, and the side of first discharge port is provided with second discharge port, and the side of the top of rack is provided with feed inlet, and the inside of feed inlet is provided with material equalizing structure, and material equalizing structure includes material equalizing cylinder, material equalizing cylinder is located at the top of feed inlet, and the connecting portion of material equalizing cylinder and feed inlet is fixedly installed with several supports.The utility model can effectively avoid material accumulation in feed inlet during the process of magnetic separation of coal mine material, ensure that material continuously and evenly enters rack and fully contacts with rotating magnetic separation drum, greatly improve the uniformity of magnetic separation operation, reduce the problem of incomplete magnetic separation caused by local accumulation of material, and guarantee the quality and efficiency of magnetic separation.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separation technology for coal mine materials, and more specifically, to a permanent magnet drum magnetic separator. Background Technology

[0002] In the process of coal mining and processing, permanent magnet drum magnetic separators are key equipment for separating magnetic impurities from effective components in coal materials. Through the magnetic adsorption of the magnetic separator drum, it separates magnetic and non-magnetic substances in the material to meet the purity requirements of subsequent processing.

[0003] A search revealed that Chinese patent CN220610804U discloses a permanent magnet drum-type magnetic separator. This structure, through a frame, filter screen, second rotating shaft, mounting sleeve, rubber connecting rod, and rubber striking balls, can vibrate and discharge fine minerals stuck on the top of the filter screen when the magnetic separator drum rotates to adsorb and screen the minerals. This effectively prevents the filter screen from clogging and greatly improves the efficiency of mineral recovery. The cooperation between the first positioning plate, bearing, second positioning plate, and shaft seat allows the second rotating shaft to rotate stably below the filter screen, reducing friction during rotation and enabling faster and more stable vibration and striking of the filter screen.

[0004] However, in actual use, when the material is poured into the frame through the feeding port, it is easy for the material to accumulate and be unevenly distributed when it enters, resulting in insufficient contact with the magnetic separator drum. This not only reduces the uniformity of magnetic separation, but also makes it easy for the magnetic separation to be incomplete due to excessive local material thickness, thus affecting the final magnetic separation quality and operating efficiency. In view of this, this utility model proposes a permanent magnet drum magnetic separator. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a permanent magnet drum magnetic separator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a permanent magnet drum magnetic separator, comprising a frame, a magnetic separator drum rotatably mounted inside the frame, a drive motor being provided at one end of the magnetic separator drum, the drive motor being fixedly mounted on the outer wall of the frame, and the output end of the drive motor being fixedly connected to the magnetic separator drum, a first discharge port being provided at the bottom of the frame, a second discharge port being provided on one side of the first discharge port, and a feed port being provided on one side of the top of the frame.

[0007] It can be seen that this structure, by setting up a magnetic separation drum inside the frame that is driven by a motor on the outer wall, and setting a feed port on one side of the top of the frame, a first discharge port at the bottom, and a second discharge port on one side of the first discharge port, constructs a basic framework for material input, separation of magnetic and non-magnetic materials, and separate discharge, providing core structural support for magnetic separation of coal mine materials.

[0008] Preferably, the feed inlet is provided with a material equalization structure, which includes a material equalization cylinder located at the top of the feed inlet. Several supports are fixedly installed at the connection between the material equalization cylinder and the feed inlet. The top of the material equalization cylinder is connected to a feeding port, and the bottom of the material equalization cylinder is connected to several material equalization pipes. A spiral conveying blade is rotatably installed inside the material equalization cylinder. A servo motor is provided at one end of the spiral conveying blade. The servo motor is fixed to the outer wall of the material equalization cylinder, and the output end of the servo motor is fixedly connected to the spiral conveying blade. Several material equalization pipes extend into the interior of the feed inlet.

[0009] This structure is designed to ensure that the coal material to be magnetically separated is evenly distributed into the feed inlet of the frame, avoiding material accumulation.

[0010] Preferably, the material equalization structure further includes a material equalization plate rotatably mounted inside the feed inlet via a pivot pin. An adjusting plate is fixedly mounted at the pivot pin at one end of the material equalization plate. A support strip is fixedly mounted on the outer wall of the feed inlet, near the adjusting plate. Several baffle grooves are provided on the support strip. The material equalization plate is located at the bottom of several material equalization tubes, and the length and width of the material equalization plate are adapted to the length and width of the feed inlet. One end of the adjusting plate rests on the baffle groove of the support strip. The outer wall of the baffle groove is inclined, and one end of the adjusting plate can be arbitrarily adjusted at several baffle grooves.

[0011] This structure is designed to precisely control the feeding speed of coal materials entering the feed inlet through the equalization pipe, ensuring that the materials continuously and evenly enter the machine frame to guarantee the subsequent magnetic separation effect.

[0012] Preferably, a scraper is provided inside the frame and on the outer wall of the magnetic separator drum. A plurality of sliding columns are fixedly installed at one end of the scraper. The sliding columns are slidably connected to the frame, and springs are installed on the outside of the sliding columns.

[0013] This structure is designed to allow the scraper to stabilize and scrape off the magnetic material adsorbed on the outer wall of the magnetic separator.

[0014] The technical effects and advantages of this utility model are as follows: 1. By setting up a material equalization structure, the internal spiral conveyor blades are driven to rotate by a servo motor on the outer wall of the equalization cylinder to uniformly convey the input coal materials. The materials are then distributed to the feed inlet through several equalization pipes at the bottom of the equalization cylinder. At the same time, the tilt angle of the equalization plate in the feed inlet can be changed by rotating the adjustment plate, thereby precisely adjusting the feeding speed. This effectively avoids material accumulation at the feed inlet, ensuring that the material continuously and evenly enters the frame and fully contacts the rotating magnetic separation drum. This greatly improves the uniformity of magnetic separation, reduces the problem of incomplete magnetic separation caused by local material accumulation, and ensures the quality and efficiency of magnetic separation. 2. By attaching the scraper to the outer wall of the magnetic separator drum to scrape off the magnetic material adsorbed on its surface, and by using the sliding column that is slidably connected to the frame at one end of the scraper and the spring outside the sliding column, the spring force provides a continuous adhesion force to the scraper, ensuring that the scraper is always in close contact with the outer wall of the drum, thus improving the scraping effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the surface structure of the material distribution cylinder of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the servo motor and the spiral conveyor blade of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection structure of the adjusting plate, the uniform material plate and the support strip of this utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure between the sliding column and the scraper of this utility model.

[0020] The attached diagram is labeled as follows: 1. Frame; 2. Magnetic separator drum; 3. Drive motor; 4. First discharge port; 5. Second discharge port; 6. Feed inlet; 7. Material distribution cylinder; 8. Support; 9. Feeding port; 10. Material distribution pipe; 11. Spiral conveyor blade; 12. Servo motor; 13. Shaft pin; 14. Material distribution plate; 15. Adjusting plate; 16. Support bar; 17. Baffle groove; 18. Scraper; 19. Sliding column; 20. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As attached Figure 1-3The permanent magnet drum separator shown includes a frame 1, a magnetic separation drum 2 rotatably mounted inside the frame 1, a drive motor 3 is provided at one end of the magnetic separation drum 2, the drive motor 3 is fixedly mounted on the outer wall of the frame 1, and the output end of the drive motor 3 is fixedly connected to the magnetic separation drum 2, a first discharge port 4 is provided at the bottom of the frame 1, a second discharge port 5 is provided on one side of the first discharge port 4, and a feed port 6 is provided on one side of the top of the frame 1.

[0023] Specifically, in this structure, the feed inlet 6 is used to transport the coal material that needs to be magnetically separated into the inside of the frame 1. During the conveying process inside the frame 1, the drive motor 3 can drive the magnetic separation drum 2 to rotate, so that the magnetic material is adsorbed on the outer wall of the magnetic separation drum 2, while the non-magnetic material is directly discharged through the first discharge port 4, thus achieving the purpose of magnetic separation. After the magnetic material is adsorbed, magnetically separated and conveyed by the magnetic separation drum 2, it is finally scraped off and discharged through the second discharge port 5. The operator can collect the magnetic material and the non-magnetic material separately. It is worth noting that the undisclosed parts inside rack 1 are existing technologies and will not be described in detail here.

[0024] In this embodiment, as shown in the appendix Figure 1 , 2 As shown in Figures 3 and 4, the feed inlet 6 is equipped with a material equalization structure, which includes a material equalization cylinder 7. The material equalization cylinder 7 is located at the top of the feed inlet 6, and several brackets 8 are fixedly installed at the connection between the material equalization cylinder 7 and the feed inlet 6. The top of the material equalization cylinder 7 is connected to a feeding port 9, and the bottom of the material equalization cylinder 7 is connected to several material equalization pipes 10. A spiral conveying blade 11 is rotatably installed inside the material equalization cylinder 7. A servo motor 12 is provided at one end of the spiral conveying blade 11. The servo motor 12 is fixed to the outer wall of the material equalization cylinder 7, and the output end of the servo motor 12 is fixedly connected to the spiral conveying blade 11. Several material equalization pipes 10 extend into the interior of the feed inlet 6.

[0025] Specifically, in this structure, coal materials can be poured into the inside of the equalization cylinder 7 through the feeding port 9. At this time, the servo motor 12 drives the spiral conveyor blade 11 to rotate inside the equalization cylinder 7 to transport the coal materials inside the equalization cylinder 7. During the process of transporting the coal materials inside the equalization cylinder 7, the coal materials will be evenly distributed and transported to the inside of the feeding port 6 through several equalization pipes 10 to avoid the accumulation of coal materials.

[0026] The material equalization structure also includes a material equalization plate 14 rotatably installed inside the feed inlet 6 via a shaft pin 13. An adjusting plate 15 is fixedly installed at the shaft pin 13 at one end of the material equalization plate 14. A support bar 16 is fixedly installed on the outer wall of the feed inlet 6 and on the side close to the adjusting plate 15. Several baffle grooves 17 are provided on the support bar 16. The material equalization plate 14 is located at the bottom of several material equalization tubes 10, and the length and width of the material equalization plate 14 are adapted to the length and width of the feed inlet 6. One end of the adjusting plate 15 rests on the baffle groove 17 to which the support bar 16 belongs. The outer wall of the baffle groove 17 is inclined, and one end of the adjusting plate 15 can be arbitrarily adjusted at several baffle grooves 17.

[0027] Specifically, in this structure, after several material distribution pipes 10 uniformly transport coal materials into the feed inlet 6, they will fall evenly onto the material distribution plate 14. The operator can rotate the adjusting plate 15 according to the actual situation, so that the shaft pin 13 drives the material distribution plate 14 to rotate inside the feed inlet 6. The inclination of the material distribution plate 14 inside the feed inlet 6 can determine the size of the feed inlet 6, thereby controlling the feeding speed of the coal materials. After adjustment, the adjusting plate 15 can be placed inside any baffle 17 to limit the position of the adjusted material distribution plate 14.

[0028] In summary, this material distribution structure, by conveying the coal material inside the material distribution cylinder 7 and discharging it through several material distribution pipes 10, enables the coal material entering the feed inlet 6 to be evenly distributed and fall onto the material distribution plate 14. By adjusting the tilt of the material distribution plate 14, the feed amount of the material can be controlled, thereby achieving uniform magnetic separation of the material and improving the magnetic separation effect.

[0029] In this embodiment, as shown in the appendix Figure 1 , 5 As shown, a scraper 18 is provided inside the frame 1 and on the outer wall of the magnetic separator 2. Several sliding columns 19 are fixedly installed at one end of the scraper 18. The sliding columns 19 are slidably connected to the frame 1, and springs 20 are installed on the outside of the sliding columns 19.

[0030] Specifically, in this structure, the scraper 18 is attached to the outer wall of the magnetic separator 2, which can scrape off the material after magnetic separation, while the slide column 19 slides with the frame 1 and cooperates with the external spring 20, which can make the scraper 18 always attached to the outer wall of the magnetic separator 2.

[0031] Working principle of this utility model: This application provides a permanent magnet drum magnetic separator. In specific use, the coal material to be magnetically separated is first poured into the material distribution drum 7 through the feeding port 9. The servo motor 12 is started to drive the spiral conveying blade 11 inside the material distribution drum 7 to rotate, so as to uniformly convey the coal material inside the material distribution drum 7. During the conveying process, the material is distributed and conveyed to the feed port 6 at the top of the frame 1 through several material distribution pipes 10 connected to the bottom of the material distribution drum 7, which effectively avoids the material from accumulating at the feed port 6, laying the foundation for subsequent uniform magnetic separation. After the material enters the feed inlet 6, it will be distributed and fall onto the uniform material plate 14 inside the feed inlet 6. The operator can rotate the adjusting plate 15 on the shaft pin 13 at one end of the uniform material plate 14 according to the actual magnetic separation requirements. The adjusting plate 15 is placed in different grooves 17 of the support bar 16. The adjusting plate 15 drives the uniform material plate 14 to rotate around the shaft pin 13, changing the tilt angle of the uniform material plate 14, thereby determining the actual material flow size of the feed inlet 6, realizing precise control of the coal mine material feeding speed, and ensuring that the material continuously and evenly enters the machine frame 1. Start the drive motor 3 on the outer wall of the frame 1. The drive motor 3 drives the magnetic separation drum 2 inside the frame 1 to rotate. When the coal material that has entered the frame 1 evenly comes into contact with the rotating magnetic separation drum 2, the magnetic components in the material will be adsorbed on the outer wall of the magnetic separation drum 2 and rotate with the magnetic separation drum 2. The impurities that do not have magnetic properties will fall directly under the action of gravity and be discharged through the first discharge port 4 at the bottom of the frame 1, thus completing the initial magnetic separation operation. During the rotation of the magnetic separator drum 2, the scraper 18 adheres to the outer wall of the magnetic separator drum 2, scraping off the magnetic material adsorbed on the drum. The scraped magnetic material is then discharged through the second discharge port 5. The operator collects the non-magnetic impurities from the first discharge port 4 and the magnetic material from the second discharge port 5, thus completing the entire magnetic separation operation of the coal mine materials.

[0032] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. A permanent magnet drum-type magnetic separator, comprising a frame (1), characterized in that: A magnetic separator (2) is rotatably mounted inside the frame (1). A drive motor (3) is provided at one end of the magnetic separator (2). A first discharge port (4) is provided at the bottom of the frame (1). A second discharge port (5) is provided on one side of the first discharge port (4). A feed port (6) is provided on one side of the top of the frame (1). A material equalization structure is provided inside the feed port (6). The material equalization structure includes a material equalization cylinder (7), which is located at the top of the feed inlet (6). Several brackets (8) are fixedly installed at the connection between the material equalization cylinder (7) and the feed inlet (6). The top of the material equalization cylinder (7) is connected to a feeding port (9), and the bottom of the material equalization cylinder (7) is connected to several material equalization pipes (10). A spiral conveying blade (11) is rotatably installed inside the material equalization cylinder (7), and a servo motor (12) is provided at one end of the spiral conveying blade (11). The material equalization structure also includes a material equalization plate (14) rotatably installed inside the feed inlet (6) via a shaft pin (13). An adjustment plate (15) is fixedly installed at the shaft pin (13) at one end of the material equalization plate (14). A support strip (16) is fixedly installed on the outer wall of the feed inlet (6) and on the side close to the adjustment plate (15). Several baffles (17) are provided on the support strip (16).

2. The permanent magnet drum magnetic separator according to claim 1, characterized in that: The drive motor (3) is fixedly installed on the outer wall of the frame (1), and the output end of the drive motor (3) is fixedly connected to the magnetic separator (2).

3. The permanent magnet drum magnetic separator according to claim 1, characterized in that: A scraper (18) is provided inside the frame (1) and on the outer wall of the magnetic separator (2). A plurality of sliding columns (19) are fixedly installed at one end of the scraper (18). The sliding columns (19) are slidably connected to the frame (1). A spring (20) is installed on the outside of the sliding columns (19).

4. The permanent magnet drum magnetic separator according to claim 1, characterized in that: The servo motor (12) is fixed on the outer wall of the material distribution cylinder (7), and the output end of the servo motor (12) is fixedly connected to the spiral conveyor blade (11). Several material distribution pipes (10) extend into the interior of the feed inlet (6).

5. The permanent magnet drum magnetic separator according to claim 1, characterized in that: The material distribution plate (14) is located at the bottom of several material distribution tubes (10), and the length and width of the material distribution plate (14) are adapted to the length and width of the feed inlet (6).

6. The permanent magnet drum magnetic separator according to claim 1, characterized in that: One end of the adjustment plate (15) is placed at the groove (17) to which the support bar (16) belongs. The outer wall of the groove (17) is inclined. One end of the adjustment plate (15) can be adjusted arbitrarily at several grooves (17).

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