A separating device for geological experimental testing
By setting up a control plate and opening/closing mechanism in the magnetic separator and adjusting the magnetic separation gap, the problem of the inability to adjust the contact time between the material and the magnetic roller is solved, thus improving the separation efficiency of weakly magnetic minerals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 梁杨
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
AI Technical Summary
In existing dry magnetic separators, the contact time between the material and the magnetic roller cannot be adjusted when separating weakly magnetic minerals, resulting in the ineffective extraction of weakly magnetic minerals and affecting the separation efficiency.
A control plate and a control mechanism are installed in the magnetic separator. By adjusting the magnetic separation gap between the control plate and the magnetic separator drum, the residence time of the material on the magnetic separator drum can be changed, thereby extending or shortening the magnetic separation time.
It enables flexible adjustment of magnetic separation time based on material conditions, improving the separation efficiency and success rate of weakly magnetic minerals.
Smart Images

Figure CN224486265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a separation device, specifically a separation device for geological experimental testing, and belongs to the technical field of mineral sorting equipment. Background Technology
[0002] In geological experiments, separation devices are mainly used for sample pretreatment, mineral or element separation, and enrichment of target components. Magnetic separation equipment is the most common type of mineral separation device, which can be classified according to the magnetic properties of the minerals, such as strongly magnetic minerals, weakly magnetic minerals, and non-magnetic minerals. When separating weakly magnetic minerals (such as hematite and ilmenite), these iron filings are located deep within the slurry. Due to their weak magnetism, a sustained magnetic field is required to draw them out. However, in some dry magnetic separators, especially magnetic roller separators, the feed and discharge speeds of the slurry or other materials are not adjustable. The speed at which the material passes through the magnetic roller is relatively fast, resulting in insufficient time to draw out the large amount of weakly magnetic minerals deep within the slurry. Although Chinese patent document CN219043391 U discloses a magnetic separator that controls the material feed speed, the contact time between the material and the magnetic roller remains constant regardless of the amount of material, failing to overcome the aforementioned problem. Therefore, further improvements are needed. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a separation device for geological experimental testing. The contact time with the magnetic roller is adjustable, and the magnetic separation time can be reasonably changed according to the material conditions to improve the magnetic separation success rate.
[0004] The technical solution adopted by this utility model is as follows: a separation device for geological experimental testing, including a hopper inside a frame; a guide trough is provided below the hopper, and a conveyor belt is provided inside the guide trough; a discharge port is opened below the guide trough; a control opening and closing plate is provided on the lower outer side of the discharge port; the control opening and closing plate is connected to an opening and closing mechanism; a drive end is provided on the outer side of the guide trough; the drive end is connected to the opening and closing mechanism; a magnetic separation roller is also provided below the discharge port; a magnetic separation gap is formed between the control opening and closing plate and the magnetic separation roller.
[0005] Furthermore, the control opening and closing plate includes a first rotating plate; the first rotating plate is hinged to the bottom of the guide trough.
[0006] Furthermore, the control opening and closing plate also includes a second rotating plate; the second rotating plate is inclined to the first rotating plate; the control opening and closing plate also includes baffles disposed on both sides of the first rotating plate and the second rotating plate.
[0007] Furthermore, the opening and closing mechanism includes cylinders disposed on the outside of both sides of the guide trough; and a hinge joint is disposed on the outside of the first rotating plate.
[0008] Furthermore, the opening and closing mechanism also includes a connecting rod; one end of the connecting rod is connected to a hinge joint, and the other end is hinged to the piston end of the cylinder.
[0009] Furthermore, a scraper is provided on the other side of the magnetic separator drum opposite to the control opening and closing plate; the scraper and the magnetic separator drum are both mounted on the machine base.
[0010] Furthermore, the scraper is parallel to the tangential direction of the magnetic separator drum; a scraper storage groove is provided on the rear side of the scraper.
[0011] This invention offers the following advantages: By setting a control opening and closing plate at the bottom of the feed chute and adjusting its angle through the opening and closing mechanism, the size of the magnetic separation gap between the control opening and closing plate and the magnetic separator drum can be changed. When the material is fed through the hopper and feed chute and arrives at the surface of the magnetic separator drum, it accumulates on its surface as the drum rotates clockwise and gradually falls downwards through the magnetic separation gap. Therefore, different sizes of the magnetic separation gap can alter the residence time of the material on the magnetic separator drum, thereby extending or shortening the adsorption time for impurities inside. After magnetic separation, the material falls downwards through the magnetic separation gap, and the impurities are adsorbed onto the surface of the magnetic separator drum. As the drum rotates, these impurities are separated by the scraper and enter the scrap storage tank. Attached Figure Description
[0012] Figure 1 This is a partial structural schematic diagram of the present invention.
[0013] Figure 2 This is a side view of the present invention.
[0014] Figure 3 A schematic diagram of the structure for controlling the opening and closing plate and the opening and closing mechanism.
[0015] Wherein: 1 is hopper, 2 is guide chute, 3 is discharge port, 4 is control opening and closing plate, 4-1 is first rotating plate, 4-2 is second rotating plate, 5 is magnetic separation drum, 6 is magnetic separation gap, 7 is baffle, 8 is cylinder, 9 is hinge joint, 10 is connecting rod, 11 is scraper plate, and 12 is iron filings storage tank. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] See Figures 1-3 This application discloses a separation device for geological experimental testing, including a hopper 1 inside a frame; a guide trough 2 is provided below the hopper 1, and a conveyor belt is provided inside the guide trough 2; a discharge port 3 is provided below the guide trough 2; a control opening and closing plate 4 is provided on the lower outer side of the discharge port 3; the control opening and closing plate 4 is connected to an opening and closing mechanism; a drive end is provided on the outer side of the guide trough 2; the drive end is connected to the opening and closing mechanism; a magnetic separation roller 5 is also provided below the discharge port 3; a magnetic separation gap 6 is formed between the control opening and closing plate 4 and the magnetic separation roller 5.
[0018] Furthermore, the control opening and closing plate 4 includes a first rotating plate 4-1; the first rotating plate 4-1 is hinged to the bottom of the guide trough 2.
[0019] Furthermore, the control opening and closing plate 4 also includes a second rotating plate 4-2; the second rotating plate 4-2 is inclined to the first rotating plate 4-1; the control opening and closing plate 4 also includes baffles 7 disposed on both sides of the first rotating plate 4-1 and the second rotating plate 4-2.
[0020] Furthermore, the opening and closing mechanism includes cylinders 8 disposed on the outside of both sides of the guide trough 2; and a hinge joint 9 is disposed on the outside of the second rotating plate 4-2.
[0021] Furthermore, the opening and closing mechanism also includes a connecting rod 10; one end of the connecting rod 10 is connected to the hinge joint 9, and the other end is hinged to the piston end of the cylinder 8.
[0022] Furthermore, a scraper 11 is provided on the other side of the magnetic separation drum 5 opposite to the control opening and closing plate 4; the scraper 11 and the magnetic separation drum 5 are both mounted on the machine base.
[0023] Furthermore, the scraper 11 is parallel to the tangential direction of the magnetic separator 5; and an iron filings storage groove 12 is provided on the rear side of the scraper 11.
[0024] Working principle: The material flows downward from hopper 1 into guide trough 2, and then is driven downward by the conveyor belt in guide trough 2, and flows out downward through discharge port 3. To extend the magnetic separation time, the material needs to remain on the magnetic separator drum 5 for a longer period of time. Therefore, it is only necessary to control the piston of cylinder 8 to extend downward, which causes connecting rod 10 to move downward. Connecting rod 10 can drive the first rotating plate 4-1 and the second rotating plate 4-2 to rotate, approaching the magnetic separator drum 5 and reducing the magnetic separation gap 6. As the magnetic separation gap 6 becomes smaller, the time for the material to slide down on the magnetic separator drum 5 will increase, thereby extending the magnetic separation time for the material. At the same time, since ordinary minerals do not have the ability to adhere, they will not adhere to the magnetic separator drum 5 and rotate clockwise. Only the iron filings contained in the minerals can be adsorbed onto the surface of the magnetic separator drum 5 and rotate with it; while the minerals will quickly accumulate above the magnetic separation gap 6.
[0025] Similarly, to reduce the residence time of the material on the magnetic separator drum 5, the piston of the cylinder 8 is controlled to rise upward, causing the first rotating plate 4-1 and the second rotating plate 4-2 to rotate upward, thus widening the magnetic separation gap.
[0026] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A separation device for geological experimental testing, comprising a hopper (1) within a frame; a guide trough (2) is provided below the hopper (1), characterized in that: The material guide trough (2) is equipped with a conveyor belt; a discharge port (3) is provided at the bottom of the material guide trough (2); a control opening and closing plate (4) is provided on the lower outer side of the discharge port (3); the control opening and closing plate (4) is connected to the opening and closing mechanism; a drive end is provided on the outer side of the material guide trough (2); the drive end is connected to the opening and closing mechanism; a magnetic separation roller (5) is also provided below the discharge port (3); a magnetic separation gap (6) is formed between the control opening and closing plate (4) and the magnetic separation roller (5).
2. The separation device for geological experimental testing according to claim 1, characterized in that: The control opening and closing plate (4) includes a first rotating plate (4-1); the first rotating plate (4-1) is hinged to the bottom of the guide trough (2).
3. The separation device for geological experimental testing according to claim 2, characterized in that: The control opening and closing plate (4) further includes a second rotating plate (4-2); the second rotating plate (4-2) is inclined to the first rotating plate (4-1); the control opening and closing plate (4) further includes baffles (7) disposed on both sides of the first rotating plate (4-1) and the second rotating plate (4-2).
4. The separation device for geological experimental testing according to claim 3, characterized in that: The opening and closing mechanism includes cylinders (8) disposed on the outside of both sides of the guide trough (2); and a hinge joint (9) is disposed on the outside of the first rotating plate (4-1).
5. The separation device for geological experimental testing according to claim 4, characterized in that: The opening and closing mechanism also includes a connecting rod (10); one end of the connecting rod (10) is connected to the hinge joint (9), and the other end is hinged to the piston end of the cylinder (8).
6. The separation device for geological experimental testing according to claim 5, characterized in that: The magnetic separator (5) is provided with a scraper (11) on the other side of the control opening and closing plate (4); the scraper (11) and the magnetic separator (5) are both arranged on the machine base.
7. The separation device for geological experimental testing according to claim 6, characterized in that: The scraper (11) is parallel to the tangential direction of the magnetic separator (5); a scrap storage groove (12) is provided on the rear side of the scraper (11).