Vertical ring type high-gradient strong magnetic separator
By adjusting the positions of the excitation coil and yoke, as well as the orientation of the magnetic medium rod in a vertical ring high gradient magnetic magnetizer, the problem of concentrate loss in the vertical ring high gradient magnetic magnetizer was solved, the recovery rate was improved, and the adsorption effect of magnetic minerals was enhanced.
Patent Information
- Application Number
- CN202423141945.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing vertical ring high gradient strong magnetizers cause concentrate to fall off into middlings or tailings in areas where the field strength and magnetic force decrease before unloading, resulting in low recovery rates.
The excitation coil and yoke are located at the bottom of the vertical ring. The yoke extends to the bottom of the receiving hopper. The magnetic medium rod is parallel to the rotation center line of the vertical ring. The receiving hopper has a wedge-shaped structure with the discharge port in the middle. The yoke is spaced 5-10 mm from the bottom of the receiving hopper to increase the excitation range and the area covered by the yoke.
It increases the concentrate recovery rate by 3 to 15 percentage points and ensures that the unloading product is firmly adsorbed by weakly magnetic minerals in a high magnetic field, preventing them from falling off.
Smart Images
Figure CN223832510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a vertical ring high gradient strong magnetizer, belonging to the technical field of magnetic separation equipment. Background Technology
[0002] Currently, vertical ring high-gradient magnetometers are commonly used in the field of high-gradient magnetic fields for vanadium-titanium magnetite and ilmenite, due to their superior anti-clogging effect. However, in current vertical ring high-gradient magnetometers, the excitation coil and yoke are located in the lower half of the vertical ring. Furthermore, due to installation limitations, to ensure maximum collection of concentrate falling off the vertical ring, two receiving hoppers are actually installed, one above the other, with the lower hopper spaced apart from the intermediate ore hopper. Additionally, the centerline of the magnetic medium rod is perpendicular to the rotation centerline of the vertical ring. This structural configuration of existing vertical ring high-gradient magnetometers leads to the concentrate falling off as intermediate ore or tailings in areas of reduced field strength and magnetic force before unloading, resulting in a low concentrate recovery rate. Utility Model Content
[0003] The technical problem to be solved by this invention is that the concentrate of existing strong magnetic machines falls off into middlings or tailings in areas where the field strength and magnetic force are reduced before unloading, resulting in low recovery rate.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a vertical ring high gradient strong magnetizer, including a receiving hopper, a vertical ring, an excitation coil and an iron yoke. The excitation coil and the iron yoke are arranged in the lower part of the vertical ring, and the iron yoke extends to the lower end of the receiving hopper located on the initial unloading side of the vertical ring.
[0005] In the above structure, the ore receiving hopper is a wedge-shaped structure with one end larger than the other, and the smaller end of the ore receiving hopper is located near the extension end of the iron yoke.
[0006] Furthermore, the ore receiving hopper in the above structure has a right-angled trapezoidal cross section, and the upper bottom end is located near the extension end of the iron yoke.
[0007] The structure also includes a magnetic medium rod, which is arranged parallel to the rotation center line of the vertical ring.
[0008] In the above structure, the iron yoke extension end is spaced apart from the lower end of the ore receiving hopper.
[0009] Furthermore, the distance between the extended end of the iron yoke and the lower end of the receiving hopper in the above structure is 5 to 10 millimeters.
[0010] In the above structure, the discharge port of the receiving hopper is located away from the extension end of the iron yoke.
[0011] In the above structure, the discharge port of the receiving hopper is located in the middle position.
[0012] The beneficial effects of this invention are as follows: This structure increases the range of the excitation coil and the iron yoke, and removes the original lower magnetic product receiving hopper. The excitation coil and iron yoke of this structure enclose the main area of the vertical ring before unloading, specifically, the excitation coil and iron yoke enclose the vertical ring up to the edge of the remaining magnetic product receiving hopper after removal. Simultaneously, the direction of the magnetic medium rod is changed; instead of its centerline being perpendicular to the rotation centerline of the vertical ring, the new design places the centerline of the magnetic medium rod parallel to the rotation centerline of the vertical ring. This ensures that the magnetic medium is always in a high-intensity magnetic field before unloading the magnetic product, and that the magnetic medium rod is always perpendicular to the magnetic field lines before unloading. Weakly magnetic minerals such as ilmenite are always firmly adsorbed onto the magnetic medium rod by magnetic force. Through experiments, this structure, under the same conditions, increases the recovery rate by 3–15 percentage points. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the AA cross-sectional structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the original equipment of this utility model.
[0016] The markings in the diagram are: 1 is the vertical ring, 2 is the magnetic medium rod, 3 is the ore receiving hopper, 4 is the flushing device, 5 is the excitation coil, 6 is the iron yoke, and 7 is the ore feeding hopper. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] like Figures 1 to 3 The present invention relates to a vertical ring-type high-gradient strong magnetic generator, comprising a receiving hopper 3, a vertical ring 1, an excitation coil 5, and an iron yoke 6. The excitation coil 5 and the iron yoke 6 are disposed at the lower part of the vertical ring 1, and the iron yoke 6 extends to the lower end of the receiving hopper 3 located on the initial unloading side of the vertical ring 1. Those skilled in the art will understand that by extending the iron yoke 6 to the lower end of the receiving hopper 3 located on the initial unloading side of the vertical ring 1, the iron yoke 6 wraps around the vertical ring 1 up to the edge of the remaining magnetic product receiving hopper 3 after dismantling. The excitation coil 5 and the iron yoke 6 enclose the main area of the vertical ring 1 before unloading, allowing the vertical ring 1 to adsorb the magnetic medium (i.e., concentrate) from the feeding hopper 7, ensuring that the magnetic medium is always in a high-intensity magnetic field before unloading the magnetic product, preventing it from falling off. In effect, the flushing device 4 ensures that the concentrate falls into the receiving hopper 3, thereby improving the concentrate recovery rate.
[0019] Preferably, the ore receiving hopper 3 in the above structure is a wedge-shaped structure with one end larger than the other, and the smaller end of the ore receiving hopper 3 is positioned near the extended end of the yoke 6. Those skilled in the art will understand that, to avoid affecting ore unloading, the yoke 6 does not actually extend to the bottom of the ore receiving hopper 3. Specifically, to facilitate ore unloading of the magnetic product after increasing the coverage area of the coil and the yoke 6, it is preferable that the ore receiving hopper 3 is a wedge-shaped structure with one end larger than the other, and further, the smaller end of the ore receiving hopper 3 is positioned near the extended end of the yoke 6 for convenient ore unloading.
[0020] Preferably, the cross-section of the ore receiving hopper 3 in the above structure is a right-angled trapezoid, and the upper bottom end is located near the extension end of the yoke 6. Those skilled in the art will understand that the structure of the ore receiving hopper 3 is further preferred; specifically, the cross-section of the ore receiving hopper 3 is preferably a right-angled trapezoid, and the upper bottom end is located near the extension end of the yoke 6.
[0021] Preferably, the above structure further includes a magnetic medium rod 2, which is arranged parallel to the rotation center line of the vertical ring 1. Those skilled in the art will understand that the parallelism of the magnetic medium rod 2 to the rotation center line of the vertical ring 1 ensures that the magnetic medium is always in a high-intensity magnetic field before unloading the magnetic product, and that the magnetic medium rod 2 is always perpendicular to the magnetic field lines before unloading the magnetic product, thus ensuring that weakly magnetic minerals such as ilmenite are firmly adsorbed onto the magnetic medium rod 2 by magnetic force.
[0022] Preferably, in the above structure, the extended end of the yoke 6 is spaced apart from the lower end of the ore receiving hopper 3. Those skilled in the art will understand that, for ease of ore unloading, it is actually preferred that the extended end of the yoke 6 be spaced apart from the lower end of the ore receiving hopper 3.
[0023] Preferably, the distance between the extended end of the yoke 6 and the lower end of the ore receiving hopper 3 in the above structure is 5-10 mm. Those skilled in the art will understand that, for ease of ore unloading, this structure preferably has the extended end of the yoke 6 and the lower end of the ore receiving hopper 3 spaced apart. Furthermore, this structure further preferably has a distance of 5-10 mm between the extended end of the yoke 6 and the lower end of the ore receiving hopper 3.
[0024] Preferably, in the above structure, the discharge port of the receiving hopper 3 is located away from the extension end of the yoke 6. Those skilled in the art will understand that, to avoid affecting ore unloading, the yoke 6 does not actually extend to the bottom of the receiving hopper 3. To facilitate unloading of the magnetic product after increasing the coverage area of the coil and yoke 6, this structure preferably places the discharge port of the receiving hopper 3 away from the extension end of the yoke 6.
[0025] Preferably, the discharge port of the receiving hopper 3 in the above structure is located in the middle position. Those skilled in the art will understand that, to avoid affecting ore unloading, the actual iron yoke 6 does not extend to the bottom of the receiving hopper 3. To facilitate ore unloading of the magnetic product after the subsequent enclosing area of the coil and iron yoke 6 is increased, this structure preferably moves the discharge port of the receiving hopper 3 to the middle position of the receiving hopper 3.
Claims
1. A vertical ring high gradient strong magnetizer, comprising a ore receiving hopper (3), a vertical ring (1), an excitation coil (5), and an iron yoke (6), wherein the excitation coil (5) and the iron yoke (6) are disposed at the lower part of the vertical ring (1), characterized in that: The iron yoke (6) extends to the lower end of the receiving hopper (3) located on the initial unloading side of the vertical ring (1).
2. The vertical ring-type high gradient magnetizer according to claim 1, characterized in that: The receiving hopper (3) is a wedge-shaped structure with one end larger than the other, and the smaller end of the receiving hopper (3) is located near the extension end of the iron yoke (6).
3. The vertical ring-type high gradient magnetizer according to claim 2, characterized in that: The ore receiving bucket (3) has a right-angled trapezoidal cross section, and the upper bottom end is located near the extension end of the iron yoke (6).
4. The vertical ring-type high gradient magnetizer according to claim 1, characterized in that: It also includes a magnetic medium rod (2), which is arranged parallel to the rotation center line of the vertical ring (1).
5. The vertical ring-type high gradient magnetizer according to claim 1, characterized in that: The extension end of the iron yoke (6) is spaced apart from the lower end of the ore receiving hopper (3).
6. The vertical ring-type high gradient magnetizer according to claim 5, characterized in that: The distance between the extended end of the iron yoke (6) and the lower end of the ore receiving bucket (3) is 5 to 10 mm.
7. The vertical ring-type high gradient magnetizer according to claim 1, characterized in that: The discharge port of the receiving hopper (3) is located at the extension end away from the iron yoke (6).
8. The vertical ring-type high gradient magnetizer according to claim 1, characterized in that: The discharge port of the receiving hopper (3) is located in the middle position.