Multistage buffer current equalization wet magnetic separator feeding device
The wet magnetic separator feeding device with a multi-stage buffer structure solves the problem of poor buffering effect of traditional devices, realizes stable and uniform distribution of slurry and improves the wear resistance of the equipment, thereby improving separation efficiency and extending service life.
Patent Information
- Application Number
- CN202522064673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-25
AI Technical Summary
Traditional magnetic separator feeding devices have poor buffering effect on slurry, resulting in problems such as slurry turbulence, splashing, uneven ore separation, metal loss, and high tailings grade, which reduces separation efficiency and accelerates equipment wear.
Design a multi-stage buffered uniform flow wet magnetic separator feeding device, including a feed box, a distribution box and a guide trough. It adopts a three-stage buffer structure. Through the combination of partition plates, pressure stabilizing ports and guide troughs, it can achieve stable and uniform distribution of slurry and buffer sedimentation, thereby enhancing wear resistance.
It improves the separation efficiency and service life of magnetic separators, reduces production costs and labor intensity, and optimizes production indicators.
Smart Images
Figure CN224672860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a feeding device for a multi-stage buffered uniform flow wet magnetic separator, belonging to the field of mineral processing equipment. Background Technology
[0002] In mineral processing, magnetic separation is widely used, employing a staged grinding-stage magnetic separation process. The magnetic separator feed unit, as a key component in the magnetite beneficiation process, is primarily used for feeding wet magnetic separators.
[0003] Due to the high flow rate and impact force of the slurry, traditional magnetic separator slurry feeding devices have poor buffering effects, easily causing slurry turbulence, splashing, uneven ore separation, metal loss, and high tailings grade, all of which worsen production indicators and significantly reduce the separation efficiency of the magnetic separator. At the same time, traditional magnetic separator feeding devices have poor wear resistance; the rapidly flowing slurry causes severe impact and wear on various parts of the feed box and magnetic separator drums, reducing the service life of the feeding device and other equipment, further increasing production costs and labor intensity for employees. Utility Model Content
[0004] The technical problem to be solved by this utility model is that traditional feeding devices have poor buffering effect on slurry, which can easily cause slurry turbulence, slurry splashing, uneven ore separation, metal loss, and high tailings grade, thus deteriorating production indicators and greatly reducing the separation efficiency of magnetic separators.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a multi-stage buffer flow equalization wet magnetic separator feeding device, including a feeding box, a ore distribution box is provided on both sides of the feeding box, and the lower part of the feeding box is connected to the ore distribution box; a flow guide trough is provided on the outer side of the ore distribution box, and the lower part of the ore distribution box is connected to the flow guide trough; a strip-shaped flow equalization port is provided on the outer side of the flow guide trough along the length direction.
[0006] In the aforementioned device, a partition plate is provided in the middle of the inner side of the ore feed box.
[0007] Furthermore, the height of the partition plate in the above-mentioned device is lower than the height of the feed box.
[0008] In the aforementioned device, a pressure stabilizing port A is provided on the lower part of the connecting side wall between the ore feed box and the ore distribution box, and the pressure stabilizing port A is located above the bottom surface of the ore feed box.
[0009] Furthermore, in the above-mentioned device, a pressure stabilizing port B is provided on the lower part of the connecting side wall of the ore distribution box and the guide channel, and the pressure stabilizing port B6 is located above the bottom surface of the ore distribution box.
[0010] Furthermore, the pressure stabilizing port A and pressure stabilizing port B in the above-mentioned device are strip-shaped and arranged along the length of the ore distribution box.
[0011] In the above-mentioned device, the angle between the bottom surface of the guide channel and the axis of the flow equalization port is an obtuse angle.
[0012] Furthermore, in the above-mentioned device, a rectangular cross-section guide pipe is provided on the lower part of the outer wall of the guide channel. The guide pipe is inclined and its inclined upper end is connected to the outer wall of the guide channel. The flow outlet is located at the outer outlet of the guide pipe.
[0013] Furthermore, the flow channel in the above-mentioned device is provided with a slag-separating grate, and the slag-separating grate is positioned directly opposite the pressure stabilizing port B.
[0014] Furthermore, cast stone bricks are provided on the inner walls of the feed box, partition plate, ore distribution box and guide channel in the above-mentioned device.
[0015] The beneficial effects of this utility model are as follows: The feeding device of this structure reduces the impact of high-velocity slurry flow through a three-stage buffer structure, achieving stable and uniform slurry distribution, improving the wear resistance of the device, and thus greatly extending the service life of the feeding device, magnetic separator, and other equipment and facilities, further reducing the production costs of enterprises and the labor intensity of employees. Furthermore, this device provides uniform ore distribution, extends service life, is easy to maintain, and can effectively optimize the separation indicators of the magnetic separator, improving the separation efficiency of the magnetic separator and optimizing production indicators, while further reducing the production costs of enterprises and the labor intensity of employees. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0018] Figure 3 The diagram shows the structure of this utility model after installation.
[0019] Attached reference numerals: 1 is feed box, 2 is distribution box, 21 is splicing plate, 3 is pressure stabilizing port A, 4 is partition plate, 5 is guide channel, 51 is guide pipe, 6 is pressure stabilizing port B, 7 is slag grating, 8 is flow equalization port, and 9 is magnetic separator. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings.
[0021] like Figures 1 to 3As shown, the present invention discloses a multi-stage buffer flow equalization wet magnetic separator feeding device, comprising a feed box 1, wherein a distribution box 2 is provided on both side walls of the feed box 1, and the lower part of the feed box 1 is connected to the distribution box 2; a guide channel 5 is provided on the outer side wall of the distribution box 2, and the lower part of the distribution box 2 is connected to the guide channel 5; a strip-shaped flow equalization port 8 is provided along the length direction on the outer side wall of the guide channel 5. Those skilled in the art will understand that the device, with the distribution box 2 connected to both side walls of the feed box 1 and the guide channel 5 connected to the outer side wall of the distribution box 2, adopts a symmetrical "butterfly" structure, with an inlet at the top, a multi-channel outlet at the bottom, and a buffer flow equalization chamber in the middle. The working process of this device is as follows: Coarse-grained slurry, after being separated by a hydrocyclone or high-frequency fine-grained slurry, or after being regrinded by a two- or three-stage mill, enters the feed box 1 directly from the top of the distribution box 2 via a chute. After buffering and settling in the feed box 1, the slurry overflows through a connecting point to the symmetrical "butterfly-shaped" distribution boxes 2 on both sides. The overflow from these two distribution boxes 2, after further buffering and settling, flows evenly by gravity through the guide channel 5 to the bottom box of the magnetic separator 9 for separation. This structural design ensures that the slurry undergoes three buffering stages before flowing into the magnetic separator 9 for magnetic separation. Specifically, the first-stage buffering occurs in the cavity at the bottom of the feed box 1, which buffers and stabilizes the pressure, reducing the initial flow velocity of the slurry; the second-stage buffering occurs in the cavity at the bottom of the symmetrical "butterfly-shaped" distribution boxes 2, which again buffers and stabilizes the pressure, reducing the impact force of the slurry dispersion; and the third-stage buffering occurs in the slurry flowing by gravity through the guide channel 5 and the equalization port 8 to the bottom box of the magnetic separator 9, further reducing the impact force of the slurry. To increase the length of the ore distribution box 2, Y-shaped splicing plates 21 can be used to connect the two ore distribution boxes 2 to the feed box 1 at both ends. Specifically, the vertical ends of the splicing plates 21 are welded and fixed to the middle of the outer walls at both ends of the feed box 1, and the two inclined sides of the splicing plates 21 serve as the end side walls of the ore distribution boxes 2. This results in a V-shaped structure at the connection between the two ends of the ore distribution boxes 2 and the feed box 1.
[0022] Preferably, a partition plate 4 is provided in the middle of the inner side of the feed box 1 in the above-mentioned device. It will be understood by those skilled in the art that in order to achieve uniform feeding of the feed boxes 2 on both sides of the feed box 1, the device preferably provides a partition plate 4 in the middle of the inner side of the feed box 1. The lower end and both sides of the partition plate 4 are welded and fixed to the corresponding inner wall of the feed box 1, which ensures that the internal space of the feed box 1 is divided into two, and ensures that the slurry in the cavities on both sides is uniform.
[0023] Preferably, the height of the partition plate 4 in the above-described device is lower than the height of the feed box 1. Those skilled in the art will understand that, in order to achieve feed buffering, it is preferable that the height of the partition plate 4 is lower than the height of the feed box 1; in practice, the height of the partition plate 4 can preferably be 0.7 to 0.9 times the height of the feed box 1.
[0024] Preferably, in the above-mentioned device, a pressure stabilizing port A3 is provided at the lower part of the connecting side wall between the feed box 1 and the distribution box 2, and the pressure stabilizing port A3 is located above the inner bottom surface of the feed box 1. Those skilled in the art will understand that, since the feed box 1 and the distribution box 2 are connected, this device is simply a further preferred embodiment of providing a pressure stabilizing port A3 at the lower part of the connecting side wall between the feed box 1 and the distribution box 2. The connection between the feed box 1 and the distribution box 2 is actually achieved through the pressure stabilizing port A3. Simultaneously, to achieve a primary buffer in the lower cavity of the feed box 1, it is actually preferred that the buffer pressure stabilizing port A3 be located above the inner bottom surface of the feed box 1.
[0025] Preferably, a pressure stabilizing port B6 is provided at the lower part of the connecting side wall of the ore distribution box 2 and the guide channel 5 in the above-mentioned device, and the pressure stabilizing port B6 is located above the inner bottom surface of the ore distribution box 2. Those skilled in the art will understand that, since the ore distribution box 2 and the guide channel 5 are connected, this device is simply a further preferred embodiment of providing a pressure stabilizing port B6 at the lower part of the connecting side wall of the ore distribution box 2 and the guide channel 5. The connection between the ore distribution box 2 and the guide channel 5 is actually achieved through the pressure stabilizing port B6. Furthermore, to achieve a two-stage buffer in the lower cavity of the ore distribution box 2, it is actually preferred that the buffer pressure stabilizing port B6 be located above the inner bottom surface of the ore distribution box 2.
[0026] Preferably, the pressure stabilizing ports A3 and B6 in the above-mentioned device are strip-shaped and arranged along the length of the ore distribution box 2. Those skilled in the art will understand that, in order to achieve continuous feeding, the pressure stabilizing ports A3 and B6 are preferably strip-shaped and arranged along the length of the ore distribution box 2, so that the slurry can be buffered by the lower cavity of the feed box 1 and the lower cavity of the ore distribution box 2 before flowing out evenly through the pressure stabilizing ports A3 and B6, reducing impact during the flow process.
[0027] Preferably, the angle between the bottom surface of the guide channel 5 and the axis of the equalization port 8 in the above-mentioned device is an obtuse angle. Those skilled in the art will understand that, since the slurry has already been buffered twice by the ore box 1 and the distribution box 2, this device, in order to further achieve three-stage buffering of the slurry, preferably uses an obtuse angle between the bottom surface of the guide channel 5 and the axis of the equalization port 8. The slurry flows through the pressure stabilizing port B6, through the guide channel 5, and out through the equalization port 8 to the bottom box of the magnetic separator 9, further reducing the impact force of the slurry.
[0028] Preferably, in the above-mentioned device, a rectangular cross-section guide pipe 51 is provided on the lower part of the outer wall of the guide trough 5. The guide pipe 51 is inclined and its inclined upper end is connected to the outer wall of the guide trough 5. The flow equalization port 8 is located at the outer outlet of the guide pipe 51. Those skilled in the art will understand that, in order to achieve three-stage buffering and uniform feeding, this device preferably provides a rectangular cross-section guide pipe 51 on the lower part of the outer wall of the guide trough 5. The guide pipe 51 is inclined and its inclined upper end is connected to the outer wall of the guide trough 5. The guide trough 5 should be connected to the guide pipe 51. The flow equalization port 8 is located at the outer outlet of the guide pipe 51. This structural arrangement allows the slurry to overflow through the lower side wall of the guide pipe 51 and enter the bottom box of the magnetic separator 9 in a water curtain shape.
[0029] Preferably, the flow channel 5 in the above-mentioned device is provided with a slag-separating grate 7, and the slag-separating grate 7 is positioned directly opposite the pressure stabilizing port B6. Those skilled in the art will understand that, in order to achieve slurry filtration and buffer slurry impact, this device provides a slag-separating grate 7 in the flow channel 5, and the slag-separating grate 7 is positioned directly opposite the pressure stabilizing port B6. The slag-separating grate 7 is installed between the pressure stabilizing port B6 and the flow equalization port 8, and can be connected to the flow channel 5 in a fixed or detachable manner.
[0030] Preferably, cast stone bricks are provided on the inner walls of the feed box 1, partition plate 4, ore distribution box 2, and guide channel 5 in the above-mentioned device. Those skilled in the art will understand that this device is all made of welded steel plates and installed at the feed end of the magnetic separator 9. Cast stone bricks of a certain height are laid on the bottom and perimeter of each part. Specifically, cast stone bricks are provided on the inner walls of the feed box 1, partition plate 4, ore distribution box 2, guide channel 5, and components in contact with the slurry, thereby improving the wear resistance, impact resistance, service life, and maintenance cost of the feeding device.
Claims
1. A feeding device for a multi-stage buffered flow equalization wet magnetic separator, comprising a feed box (1), characterized in that: The feed box (1) is provided with a ore distribution box (2) on both sides, and the lower part of the feed box (1) is connected to the ore distribution box (2); the ore distribution box (2) is provided with a flow guide trough (5) on the outer side wall, and the lower part of the ore distribution box (2) is connected to the flow guide trough (5); the flow guide trough (5) is provided with a strip-shaped flow equalization port (8) along the length direction on the outer side wall of the flow guide trough (5).
2. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 1, characterized in that: A partition plate (4) is provided in the middle of the inner side of the feed box (1).
3. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 2, characterized in that: The height of the partition plate (4) is lower than the height of the feed box (1).
4. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 1, characterized in that: A pressure stabilizing port A (3) is provided on the lower part of the connecting side wall of the feed box (1) and the distribution box (2), and the pressure stabilizing port A (3) is located above the bottom surface of the feed box (1).
5. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 4, characterized in that: A pressure stabilizing port B (6) is provided on the lower part of the connecting side wall of the ore distribution box (2) and the guide channel (5), and the pressure stabilizing port B (6) is located above the bottom surface of the ore distribution box (2).
6. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 5, characterized in that: The pressure stabilizing ports A (3) and B (6) are strip-shaped and arranged along the length of the ore distribution box (2).
7. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 1, characterized in that: The angle between the inner bottom surface of the guide channel (5) and the axis of the flow equalization port (8) is an obtuse angle.
8. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 7, characterized in that: The lower part of the outer wall of the guide channel (5) is provided with a guide pipe (51) with a rectangular cross section. The guide pipe (51) is inclined and its upper inclined end is connected to the outer wall of the guide channel (5). The flow outlet (8) is located at the outer outlet of the guide pipe (51).
9. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 6, characterized in that: The guide channel (5) is provided with a slag-separating grate (7), and the slag-separating grate (7) is positioned directly opposite the pressure stabilizing port B (6).
10. The feeding device for a multi-stage buffered flow equalization wet magnetic separator according to claim 2, characterized in that: Cast stone bricks are provided on the inner walls of the feed box (1), the partition plate (4), the ore distribution box (2) and the guide channel (5).