Double-roller magnetic separator
By using the synergistic action of the active and driven magnetic rollers of the double-roll magnetic separator, combined with the guide trough and scraper structure, secondary magnetic separation of materials is achieved, which solves the problems of low separation efficiency and high magnetic mineral residue in existing magnetic separators, and improves separation accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGFANG CHENGXIN GEOLOGY SERVICE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
Existing magnetic separators suffer from problems such as low separation efficiency, high levels of magnetic mineral residue, complex equipment structure and inconvenient adjustment, and insufficient secondary magnetic separation.
The double-roll magnetic separator adopts a structure that achieves secondary magnetic separation of materials through the synergistic effect of the active and driven magnetic rollers, combined with the guide trough and scraper structure. The guide plate guides the material to fall precisely, and the scraper scrapes the magnetic ore onto the driven magnetic roller for secondary magnetic separation.
It significantly improves sorting accuracy, reduces magnetic mineral residue, enables convenient flow rate adjustment and multi-stage magnetic separation, and enhances sorting efficiency.
Smart Images

Figure CN224237080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic separation equipment technology, and in particular to a double-roller magnetic separator. Background Technology
[0002] Existing magnetic separators mostly employ a single-roller magnetic separation structure, which suffers from low separation efficiency, high levels of magnetic mineral residue, and complex equipment structure. While some devices improve separation efficiency by adding auxiliary devices, they suffer from drawbacks such as inconvenient adjustment and insufficient secondary magnetic separation. Therefore, there is an urgent need for a magnetic separator with a compact structure, high separation efficiency, and the ability to perform multi-stage magnetic separation. Utility Model Content
[0003] The purpose of this invention is to provide a double-roller magnetic separator that achieves secondary magnetic separation of materials through the synergistic effect of the active and driven magnetic rollers, combined with the guide trough and scraper structure, significantly improving the separation accuracy and solving the problems of low magnetic separation efficiency and incomplete separation in the prior art.
[0004] To achieve the above objectives, this utility model provides a double-roller magnetic separator, including a frame, a feeding unit, a material separation component, and a drive motor. The feeding unit is fixedly installed on the top of the frame. Inside the frame, a guide plate and a double-roller transmission mechanism are arranged sequentially from top to bottom. The guide plate is located between the feeding unit and the double-roller transmission mechanism. The double-roller transmission mechanism is connected to the frame via a first bracket. The material separation component is located below the frame. The drive motor is located on the side of the frame and is connected to the double-roller transmission mechanism via a first belt.
[0005] Preferably, the feeding unit includes a feed inlet and a push-pull plate, the push-pull plate being disposed at the lower end of the feed inlet, and the material flow rate of the feed inlet being adjusted by pushing and pulling the push-pull plate.
[0006] Preferably, the dual-roller transmission mechanism includes a driving magnetic roller and a driven magnetic roller arranged in parallel. The driving magnetic roller is connected to the power output end of the drive motor via a first belt, and the driving magnetic roller and the driven magnetic roller are connected via a second belt. The driving magnetic roller and the driven magnetic roller rotate in the same direction.
[0007] Preferably, the first support includes a main roller support and a driven roller support. Both ends of the main roller support and the driven roller support are fixedly connected to the frame. Both ends of the driving magnetic roller are rotatably connected to the main roller support through bearings. Both ends of the driven magnetic roller are rotatably connected to the driven roller support through bearings.
[0008] Preferably, the guide plate is inclinedly disposed below the feed inlet via a guide bracket, and the end of the guide plate extends above the active magnetic roller.
[0009] Preferably, a guide groove is inclinedly provided between the active magnetic roller and the driven magnetic roller. The guide groove is connected to the main roller support through a third bracket. One end of the guide groove is located below the active magnetic roller and is used to collect geological samples that have not been magnetically separated by the active magnetic roller. The other end of the guide groove is located above the driven magnetic roller and is used for secondary magnetic separation of geological samples.
[0010] Preferably, the material separation component includes a tailings collection box and a magnetic ore collection box, the tailings collection box and the magnetic ore collection box are arranged side by side, the tailings collection box is located to the lower left of the driven magnetic roller, and the magnetic ore collection box is located to the lower right of the driven magnetic roller.
[0011] Preferably, a scraper is inclinedly arranged below the active magnetic roller and the driven magnetic roller. The scraper is connected to the driven roller support through a fourth bracket. The two ends of the scraper are in contact with the active magnetic roller and the driven magnetic roller, respectively, to scrape off the magnetic ore adsorbed on the active magnetic roller and then adsorb it onto the driven magnetic roller for secondary magnetic separation. The magnetic ore on the driven magnetic roller that has undergone secondary magnetic separation is then collected into the magnetic ore collection box by the scraper.
[0012] The beneficial effects of this utility model are as follows:
[0013] (1) Dual-roller synergistic magnetic separation: By cooperating with the active magnetic roller and the driven magnetic roller, the material is magnetically separated twice, reducing the residue of magnetic minerals;
[0014] (2) Optimization of flow guiding structure: The flow guide plate and flow guide channel guide the material to fall accurately, avoiding splashing and mixing;
[0015] (3) Convenient adjustment: The feed unit push-pull plate can adjust the flow rate in real time to adapt to different material processing needs.
[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a double-roller magnetic separator according to the present invention. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the structure of a double-roller magnetic separator according to the present invention. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the structure of a double-roller magnetic separator according to the present invention. Figure 3 ;
[0020] Figure 4 This is a cross-sectional view of a double-roller magnetic separator according to the present invention. Figure 1 ;
[0021] Figure 5 This is a cross-sectional view of a double-roller magnetic separator according to the present invention. Figure 2 .
[0022] The components include: 1. Feeding unit; 101. Push-pull plate; 102. Feed inlet; 2. Frame; 3. Material separation assembly; 301. Tailings collection box; 302. Magnetic ore collection box; 4. Drive motor; 5. First belt; 6. Second belt; 7. First support; 701. Main roller support; 702. Driven roller support; 8. Fourth support; 9. Scraper; 10. Guide trough; 11. Third support; 12. Guide plate; 13. Double roller transmission mechanism; 1301. Driven magnetic roller; 1302. Active magnetic roller. Detailed Implementation
[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] Example
[0026] like Figure 1-5 As shown, a double-roller magnetic separator includes a frame 2, a feeding unit 1, a material separation component 3, and a drive motor 4. The feeding unit 1 is fixedly installed on the top of the frame 2. Inside the frame 2, a guide plate 12 and a double-roller transmission mechanism 13 are arranged sequentially from top to bottom. The guide plate 12 is located between the feeding unit 1 and the double-roller transmission mechanism 13. The double-roller transmission mechanism 13 is connected to the frame 2 through a first bracket 7. The material separation component 3 is located below the frame 2. The drive motor 4 is located on the side of the frame 2 and is connected to the double-roller transmission mechanism 13 through a first belt 5.
[0027] The feeding unit 1 includes a feed inlet 102 and a push-pull plate 101. The push-pull plate 101 is located at the lower end of the feed inlet 102, and the material flow rate of the feed inlet 102 is adjusted by pushing and pulling the push-pull plate 101.
[0028] The dual-roller transmission mechanism 13 includes a driving magnetic roller 1302 and a driven magnetic roller 1301 arranged in parallel. The driving magnetic roller 1302 is connected to the power output end of the drive motor 4 through a first belt 5. The driving magnetic roller 1302 and the driven magnetic roller 1301 are connected through a second belt 6. The driving magnetic roller 1302 and the driven magnetic roller 1301 rotate in the same direction, both rotating counterclockwise.
[0029] The first support 7 includes a main roller support 701 and a driven roller support 702. Both ends of the main roller support 701 and the driven roller support 702 are fixedly connected to the frame 2. Both ends of the driving magnetic roller 1302 are rotatably connected to the main roller support 701 via bearings, and both ends of the driven magnetic roller 1301 are rotatably connected to the driven roller support 702 via bearings. The guide plate 12 is inclinedly disposed below the feed inlet 102 via the guide plate support, and the end of the guide plate 12 extends above the driving magnetic roller 1302.
[0030] A guide trough 10 is inclinedly arranged between the active magnetic roller 1302 and the driven magnetic roller 1301. The guide trough 10 is connected to the main roller support 701 through the third support 11. One end of the guide trough 10 is located below the active magnetic roller 1302 and is used to collect geological samples that have not been magnetically separated by the active magnetic roller 1302. The other end of the guide trough 10 is located above the driven magnetic roller 1301 and is used for secondary magnetic separation of geological samples.
[0031] The material separation component 3 includes a tailings collection box 301 and a magnetic ore collection box 302. The tailings collection box 301 and the magnetic ore collection box 302 are arranged side by side. The tailings collection box 301 is located to the lower left of the driven magnetic roller 1301, and the magnetic ore collection box 302 is located to the lower right of the driven magnetic roller 1301.
[0032] A scraper 9 is inclinedly arranged below the active magnetic roller 1302 and the driven magnetic roller 1301. The scraper 9 is connected to the driven roller support 702 through the fourth support 8. The two ends of the scraper 9 are in contact with the active magnetic roller 1302 and the driven magnetic roller 1301 respectively. It is used to scrape the magnetic ore adsorbed on the active magnetic roller 1302 and then adsorb it onto the driven magnetic roller 1301 for secondary magnetic separation. The magnetic ore on the driven magnetic roller 1301 that has undergone secondary magnetic separation is then collected into the magnetic ore collection box 302 by the scraper 9.
[0033] Working principle:
[0034] The drive motor 4 drives the active magnetic roller 1302 to rotate via the first belt 5, and drives the driven magnetic roller 1301 to rotate in the same direction via the second belt 6. The material enters through the feed inlet 102, and after the flow rate is adjusted by the push-pull plate 101, it falls evenly onto the surface of the active magnetic roller 1302 via the guide plate 12. Magnetic minerals are adsorbed by the active magnetic roller 1302, and non-magnetic minerals slide onto the surface of the driven magnetic roller 1301 via the guide groove 10 for secondary separation. The scraper 9 scrapes the magnetic minerals on the active magnetic roller 1302 to the angle formed between the scraper 9 and the driven magnetic roller 1301, where they undergo secondary magnetic separation. Finally, the scraper 9 scrapes the magnetic minerals that have undergone two magnetic separations from the driven magnetic roller 1301 into the magnetic ore collection box 302, and the tailings fall into the tailings collection box 301.
[0035] Therefore, the present invention provides a double-roller magnetic separator with the above-mentioned structure. Through the synergistic effect of the active and driven magnetic rollers, combined with the guide trough and scraper structure, it realizes secondary magnetic separation of materials, significantly improves the separation accuracy, and solves the problems of low magnetic separation efficiency and incomplete separation in the prior art.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A double-roller magnetic separator, characterized in that: The device includes a frame, a feeding unit, a material separation component, and a drive motor. The feeding unit is fixedly installed on the top of the frame. Inside the frame, from top to bottom, there are a guide plate and a double roller transmission mechanism. The guide plate is located between the feeding unit and the double roller transmission mechanism. The double roller transmission mechanism is connected to the frame via a first bracket. The material separation component is located below the frame. The drive motor is located on the side of the frame and is connected to the double roller transmission mechanism via a first belt.
2. The double-roll magnetic separator according to claim 1, characterized in that: The feeding unit includes a feed inlet and a push-pull plate. The push-pull plate is located at the lower end of the feed inlet, and the material flow rate of the feed inlet is adjusted by pushing and pulling the push-pull plate.
3. A double-roller magnetic separator according to claim 2, characterized in that: The dual-roller transmission mechanism includes a driving magnetic roller and a driven magnetic roller arranged in parallel. The driving magnetic roller is connected to the power output end of the drive motor via a first belt. The driving magnetic roller and the driven magnetic roller are connected via a second belt, and the driving magnetic roller and the driven magnetic roller rotate in the same direction.
4. A double-roll magnetic separator according to claim 3, characterized in that: The first support includes a main roller support and a driven roller support. Both ends of the main roller support and the driven roller support are fixedly connected to the frame. Both ends of the driving magnetic roller are rotatably connected to the main roller support through bearings. Both ends of the driven magnetic roller are rotatably connected to the driven roller support through bearings.
5. A double-roll magnetic separator according to claim 4, characterized in that: The guide plate is inclinedly disposed below the feed inlet via a guide bracket, and the end of the guide plate extends above the active magnetic roller.
6. A double-roll magnetic separator according to claim 5, characterized in that: A guide trough is inclinedly arranged between the active magnetic roller and the driven magnetic roller. The guide trough is connected to the main roller support through a third bracket. One end of the guide trough is located below the active magnetic roller and is used to collect geological samples that have not been magnetically separated by the active magnetic roller. The other end of the guide trough is located above the driven magnetic roller and is used for secondary magnetic separation of geological samples.
7. A double-roller magnetic separator according to claim 6, characterized in that: The material separation assembly includes a tailings collection box and a magnetic ore collection box. The tailings collection box and the magnetic ore collection box are arranged side by side. The tailings collection box is located to the lower left of the driven magnetic roller, and the magnetic ore collection box is located to the lower right of the driven magnetic roller.
8. A double-roll magnetic separator according to claim 7, characterized in that: Scrapers are inclinedly arranged below the active magnetic roller and the driven magnetic roller. The scrapers are connected to the driven roller support through a fourth bracket. The two ends of the scrapers are in contact with the active magnetic roller and the driven magnetic roller, respectively, and are used to scrape off the magnetic ore adsorbed on the active magnetic roller and then adsorb it onto the driven magnetic roller for secondary magnetic separation. The magnetic ore on the driven magnetic roller that has undergone secondary magnetic separation is then collected into the magnetic ore collection box by the scrapers.