Magnetic separator cylinder surface scraping mechanism
By designing a scraping mechanism on the surface of the magnetic separator cylinder and utilizing reverse transmission and elastic telescopic plate assembly, the problem of iron powder being difficult to detach from the top of the magnetic roller was solved, achieving rapid separation of iron powder and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAZHONG MINING CO LTD INNER MONGOLIA
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-14
AI Technical Summary
In existing magnetic separators, iron powder is difficult to detach quickly from the top of the magnetic roller, leading to accumulation and affecting screening efficiency.
A scraping mechanism for the surface of a magnetic separator drum is designed, including a scraper, a rotating rod, and an elastic telescopic plate assembly. The rotating rod rotates in the opposite direction to the magnetic roller through a reverse transmission component, and the elastic telescopic plate assembly is used to remove iron powder from the top of the scraper. The iron powder and water are then separated by a collection cylinder and a filter plate.
It enables rapid detachment and separation of iron powder, improves screening efficiency, prevents iron powder accumulation, and enhances the working performance of the magnetic separator.
Smart Images

Figure CN224114199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral processing equipment technology, specifically to a scraping mechanism for the surface of a magnetic separator cylinder. Background Technology
[0002] Magnetic separators are screening devices suitable for removing iron powder and other pollutants from powdered materials. After the slurry flows into the tank through the feed box, the mineral particles enter the feed area of the tank in a loose state under the action of water flow from the feed spray pipe. Under the influence of the magnetic field, the magnetic mineral particles magnetically aggregate to form "magnetic clusters" or "magnetic chains." These clusters or chains are then attracted to the magnetic poles by the magnetic force in the slurry and are adsorbed onto the cylinder.
[0003] In the prior art, scrapers are mainly used to block iron powder, while magnetic rollers have an attraction to iron powder, causing the iron powder to be stuck on the top of the scraper and unable to quickly detach from the magnetic roller. In order to enable the iron powder to quickly detach from the magnetic roller, this utility model provides a scraping mechanism on the surface of the magnetic separator cylinder. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a scraping mechanism for the surface of a magnetic separator cylinder.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a scraping mechanism for the surface of a magnetic separator cylinder, comprising a magnetic roller and a scraper disposed on the outside of the magnetic roller. The end of the scraper is tightly attached to the outer surface of the magnetic roller. A rotating rod is rotatably mounted above the scraper. Multiple elastic telescopic plate groups are mounted on the outer surface of the rotating rod. The multiple elastic telescopic plate groups are evenly distributed in the circumferential direction of the rotating rod. A reverse transmission assembly is provided between the rotating rod and the magnetic roller, which makes the rotation direction of the rotating rod opposite to that of the magnetic roller.
[0006] Preferably, the elastic telescopic plate assembly includes a sleeve plate, an inner plate, and a spring; the inner plate and the sleeve plate are slidably connected, and the spring is fixedly installed between the inner plate and the sleeve plate.
[0007] Preferably, the reverse transmission assembly includes a transmission belt, a first gear, and a second gear; the second gear is fixedly mounted on one end of the rotating rod, the first gear is rotatably mounted on the magnetic separator frame, the first gear and the second gear are in a meshing state, one end of the transmission belt is sleeved on one end of the magnetic roller, and the other end of the transmission belt is sleeved on the first gear.
[0008] Preferably, a collection cylinder is provided below the scraper, and a filter plate is fixedly installed inside the collection cylinder.
[0009] Preferably, the filter plate divides the interior of the collection cylinder into two independent cavities. A push plate is slidably disposed in the cavity located directly below the bottom end of the scraper. Rotating plates are rotatably installed at both ends of the collection cylinder along its length, and blocking bolts are threadedly installed at both ends of the collection cylinder along its length.
[0010] Beneficial effects
[0011] Compared with the prior art, the present invention provides a scraping mechanism for the surface of a magnetic separator cylinder, which has the following advantages:
[0012] On the outside of the magnetic roller, a scraper is mounted on a rotating rod. Multiple elastic telescopic plate groups are mounted on the outer surface of the rotating rod. These elastic telescopic plate groups are evenly distributed on the circumference of the rotating rod. A reverse transmission component is provided between the rotating rod and the magnetic roller. The elastic telescopic plate groups can disengage iron powder from the top of the scraper, preventing iron powder from accumulating at the top of the scraper.
[0013] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the magnetic roller, scraper, and elastic telescopic plate assembly in this utility model;
[0017] Figure 3 This is a schematic diagram of the disassembled structure of the elastic telescopic plate assembly in this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the collecting cylinder, filter plate, push plate and rotating plate in this utility model.
[0019] In the diagram: 1. Magnetic roller; 2. Frame; 3. Scraper; 4. Sleeve plate; 5. Inner plate; 6. Rotating rod; 7. Slide cavity; 8. Spring; 9. Guide rod; 10. Transmission belt; 11. First gear; 12. Second gear; 13. Collection cylinder; 14. Filter plate; 15. Push plate; 16. Rotating plate; 17. Blocking bolt; 18. Slide rod. Detailed Implementation
[0020] The following combination Figures 1 to 4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] Please combine Figures 1 to 4 As shown, this utility model provides a scraping mechanism for the surface of a magnetic separator drum. A magnetic roller 1 is rotatably mounted on a drum frame 2, driven by a motor. A scraper 3 is fixedly mounted on the drum frame 2, with its top end tightly fitted to the outer surface of the magnetic roller 1. A rotating rod 6 is rotatably mounted on the drum frame 2 above the scraper 3. Multiple elastic telescopic plate groups are mounted on the outer surface of the rotating rod 6, evenly spaced along its circumference. A reverse transmission assembly is provided between the rotating rod 6 and the magnetic roller 1, causing the rotating rod 6 to rotate in the opposite direction to the magnetic roller 1. During the clockwise rotation of the magnetic roller 1, the scraper 3 scrapes away iron powder from the outer surface of the magnetic roller 1. Due to the magnetic force of the magnetic roller 1, the iron powder mainly concentrates at the top end of the scraper 3. The rotating rod 6 follows the magnetic roller 1 in rotation, and their rotation directions are opposite. The multiple elastic telescopic plate groups allow the iron powder to detach from the top end of the scraper 3.
[0024] Below the scraper 3, there is a collection cylinder 13. Inside the collection cylinder 13, a filter plate 14 is fixedly installed. The filter plate 14 divides the inside of the collection cylinder 13 into two independent cavities. One of the cavities is located directly below the bottom of the scraper 3. Multiple elastic telescopic plates allow iron powder to fall quickly into this cavity. The water contained in the iron powder in this cavity is filtered by the filter plate 14. A drain outlet is fixedly installed on the collection cylinder 13 and is connected to the other cavity. The water contained in the iron powder is discharged through the drain outlet.
[0025] A push plate 15 is slidably disposed in the cavity directly below the bottom end of the scraper 3. A slide rod 18 is fixedly installed inside the collection cylinder 13. The slide rod 18 passes through the interior of the push plate 15 and is slidably connected to the push plate 15. A rotating plate 16 is rotatably installed at both ends of the collection cylinder 13 along its length. A blocking bolt 17 is threadedly installed at both ends of the collection cylinder 13 along its length. The blocking bolt 17 can keep the rotating plate 16 in a vertical state. When it is necessary to remove the iron powder, the rotating plate 16 is rotated to make it horizontal. A channel is opened at the end of the collection cylinder 13, and the push plate 15 can be pushed to push out all the iron powder in the collection cylinder 13.
[0026] The elastic telescopic plate assembly includes a sleeve plate 4, an inner plate 5, and a spring 8. The sleeve plate 4 has a sliding cavity 7 for the inner plate 5 to slide. Multiple guide rods 9 are fixedly installed inside the sleeve plate 4. One end of the guide rod 9 is inserted into the inner plate 5 and slidably connected to the inner plate 5. The spring 8 is fixedly installed between the inner plate 5 and the sleeve plate 4. After the inner plate 5 contacts the outer surface of the magnetic roller 1, it can retract, thus removing iron powder over a large area.
[0027] The reverse transmission assembly includes a transmission belt 10, a first gear 11, and a second gear 12. The second gear 12 is fixedly installed on one end of the rotating rod 6, and the first gear 11 is rotatably installed on the cylinder frame 2. The first gear 11 and the second gear 12 are in a meshing state. One end of the transmission belt 10 is sleeved on one end of the magnetic roller 1, and the other end of the transmission belt 10 is sleeved on the first gear 11.
[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A scraping mechanism for the surface of a magnetic separator drum, comprising a magnetic roller (1) and a scraper (3) disposed on the outer side of the magnetic roller (1), wherein the end of the scraper (3) is tightly fitted against the outer surface of the magnetic roller (1), characterized in that, A rotating rod (6) is rotatably mounted above the scraper (3). Multiple elastic telescopic plate groups are mounted on the outer surface of the rotating rod (6). The multiple elastic telescopic plate groups are evenly distributed in the circumferential direction of the rotating rod (6). A reverse transmission component is provided between the rotating rod (6) and the magnetic roller (1). The reverse transmission component makes the rotation direction of the rotating rod (6) opposite to that of the magnetic roller (1).
2. The scraping mechanism for the surface of a magnetic separator cylinder according to claim 1, characterized in that: The elastic telescopic plate assembly includes a sleeve plate (4), an inner plate (5), and a spring (8); the inner plate (5) is slidably connected to the sleeve plate (4), and the spring (8) is fixedly installed between the inner plate (5) and the sleeve plate (4).
3. The scraping mechanism for the surface of a magnetic separator cylinder according to claim 1, characterized in that: The reverse transmission assembly includes a transmission belt (10), a first gear (11), and a second gear (12); the second gear (12) is fixedly mounted on one end of the rotating rod (6), the first gear (11) is rotatably mounted on the magnetic separator frame, the first gear (11) and the second gear (12) are meshed, one end of the transmission belt (10) is sleeved on one end of the magnetic roller (1), and the other end of the transmission belt (10) is sleeved on the first gear (11).
4. The scraping mechanism for the surface of a magnetic separator cylinder according to claim 1, characterized in that: A collection cylinder (13) is provided below the scraper (3), and a filter plate (14) is fixedly installed inside the collection cylinder (13).
5. The scraping mechanism for the surface of a magnetic separator cylinder according to claim 4, characterized in that: The filter plate (14) divides the interior of the collection cylinder (13) into two independent cavities. A push plate (15) is slidably arranged in the cavity directly below the bottom of the scraper (3). A rotating plate (16) is rotatably installed at both ends of the collection cylinder (13) along its length. A blocking bolt (17) is threadedly installed at both ends of the collection cylinder (13) along its length.