Switcher for dry magnetic separator

Abstract

The utility model belongs to the technical field of magnetic separators, and particularly relates to a switcher for a dry magnetic separator, which comprises a magnetic roller group, the magnetic roller group sequentially comprises an upper roller, a middle roller and a lower roller from top to bottom, a first receiving hopper is arranged below the upper roller, a first adjusting plate is arranged on one side of a blanking channel below the first receiving hopper, and a second adjusting plate is arranged on one side of the blanking channel below the middle roller. A material flow channel is arranged between the first adjusting plate and the discharging channel, the first adjusting plate rotates to enable the material flow channel to have an open state and a closed state, a drainage plate and a second adjusting plate are arranged between the middle roller and the lower roller, and a second receiving hopper and a third receiving hopper are arranged below the drainage plate and the second adjusting plate respectively. The non-magnetic materials enter the second material receiving hopper through the surface of the drainage plate, the second adjusting plate enables the weak magnetic materials to enter the third material receiving hopper or fall to the surface of the lower roller through rotation, workers can select different discharging paths, and therefore the material sorting effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separators, and specifically relates to a switch for a dry magnetic separator. Background Art

[0002] Magnetic separators are one of the most widely used and highly versatile machine types in the industrial field. Magnetic separators are widely used in industries such as mining, timber, ceramics, chemistry, and food. In the case of the mining industry, magnetic separators are applicable to the wet or dry magnetic separation of materials such as manganese ore, magnetite, pyrrhotite, roasted ore, ilmenite, and hematite with a particle size below 50 mm, and are also used for the iron removal operation of materials such as coal, non-metallic minerals, and building materials. In the early days, the average magnetic induction intensity on the surface of the magnetic drum of the magnetic separator was 80 - 400 mT. With the continuous development of technology, after the magnetic separator can be made into a roll shape, the magnetic field intensity has also been increased to 1650 mT, which is currently the highest measured magnetic field intensity.

[0003] A dry magnetic separator is a device that uses the difference in magnetic force to separate magnetic minerals and non-magnetic minerals in ore sand. In traditional dry magnetic separators, the ore sand feeding often adopts a single path, which limits the applicability and flexibility of the equipment in ore dressing when dealing with ore sand of different magnetic intensities, thus affecting the separation effect. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a switch for a dry magnetic separator.

[0005] A switch for a dry magnetic separator includes a magnetic roll group. The magnetic roll group includes an upper roll, a middle roll, and a lower roll from top to bottom in sequence. A first receiving hopper is provided below the upper roll. An inclined feeding channel is provided below the first receiving hopper. A first adjusting plate is provided on one side of the feeding channel. A material flow channel is provided between the first adjusting plate and the feeding channel. The first adjusting plate rotates to make the material flow channel have two states: open and closed. A diversion plate and a second adjusting plate are provided between the middle roll and the lower roll. A second receiving hopper and a third receiving hopper are respectively provided below the diversion plate and the second adjusting plate. Non-magnetic substances enter the second receiving hopper through the surface of the diversion plate. The second adjusting plate rotates to make magnetic substances enter the third receiving hopper or fall onto the surface of the lower roll.

[0006] Further, a first guiding plate is provided between the upper roll and the middle roll. A second guiding plate is provided between the middle roll and the lower roll. The second guiding plate is connected end to end with the second adjusting plate. A third guiding plate for guiding the material to the material flow channel is provided below the first receiving hopper.

[0007] Further, both the first adjusting plate and the second adjusting plate are controlled to rotate by a pneumatic valve actuator.

[0008] Further, the magnetic field intensities of the upper roller, the middle roller and the lower roller increase from small to large.

[0009] Further, the rotation directions of the upper roller and the middle roller are the same, and the rotation direction of the lower roller is opposite to those of the upper roller and the middle roller.

[0010] Due to the adoption of the above technical solutions, the beneficial technical effects of the present utility model are as follows: In the present utility model, the staff can select different blanking paths according to different magnetic substances contained in the materials, thereby improving the sorting effect of the device on the materials, increasing the adaptability of the device, and adjusting conveniently by setting a wind valve actuator to change the sorting path of the materials. Description of the Drawings

[0011] Figure 1 is a working schematic diagram of a switch for a dry magnetic separator of the present utility model Figure 1 ;

[0012] Figure 2 is a working schematic diagram of a switch for a dry magnetic separator of the present utility model Figure 2 .

[0013] In the figure, 1 is the upper roller, 2 is the middle roller, 3 is the lower roller, 4 is the first receiving hopper, 5 is the blanking channel, 6 is the first adjusting plate, 7 is the material flow channel, 8 is the diversion plate, 9 is the second adjusting plate, 10 is the second receiving hopper, 11 is the third receiving hopper, 12 is the first guiding plate, 13 is the second guiding plate, 14 is the wind valve controller, and 15 is the third guiding plate. Detailed Embodiments

[0014] In order to more clearly illustrate the technical solutions of the present utility model, the present utility model will be further described below with reference to the drawings. Obviously, the drawings described below are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments obtained based on this drawing and embodiment all fall within the protection scope of the present utility model.

[0015] According to Figure 1-2As shown in the figure, a switch for a dry magnetic separator includes a magnetic roller group. The magnetic roller group includes an upper roller 1, a middle roller 2, and a lower roller 3 from top to bottom. A first receiving hopper 4 is provided below the upper roller 1. An inclined feeding channel 5 is provided below the first receiving hopper 4. A first adjusting plate 6 is provided on one side of the feeding channel 5. A material flow channel 7 is provided between the first adjusting plate 6 and the feeding channel 5. The first adjusting plate 6 can be rotated to make the material flow channel 7 have two states: open and closed. A diversion plate 8 and a second adjusting plate 9 are provided between the middle roller 2 and the lower roller 3. A second receiving hopper 10 and a third receiving hopper 11 are respectively provided below the diversion plate 8 and the second adjusting plate 9. Non-magnetic substances enter the second receiving hopper 10 through the surface of the diversion plate 8. The second adjusting plate 9 can be rotated to make the weakly magnetic substances enter the third receiving hopper 11 or fall onto the surface of the lower roller 3.

[0016] In the above specific technical solution, the staff can select different feeding paths according to the different magnetic substances contained in the material, thereby improving the sorting effect of the device on the material and increasing the adaptability of the device. Specifically, the first sorting path of the material is as follows: The material is sorted by the upper roller 1, and the strongly magnetic material falls into the first receiving hopper 4, then falls onto the lower roller 3 through the material flow channel 7, and the lower roller 3 further sorts the strongly magnetic material. The remaining material falls from the upper roller 1 to the middle roller 2. After being sorted by the middle roller 2, the non-magnetic material drops into the second receiving hopper 10, and the weakly magnetic material drops into the third receiving hopper 11; by rotating the first adjusting plate 6 and the second adjusting plate 9, the material is sorted under different paths. Specifically, the second sorting path of the material is as follows: The material is sorted by the upper roller 1, and the strongly magnetic material falls into the first receiving hopper 4 and is discharged through the feeding channel 5. The remaining material falls from the upper roller 1 to the middle roller 2. After being sorted by the middle roller 2, the non-magnetic material drops into the second receiving hopper 10, and the weakly magnetic material drops onto the lower roller 3 through the second adjusting plate 9 for further sorting of the weakly magnetic material.

[0017] A first guide plate 12 is provided between the upper roller 1 and the middle roller 2, a second guide plate 13 is provided between the middle roller 2 and the lower roller 3, the second guide plate 13 is connected end to end with the second adjusting plate 9, and a third guide plate 15 for guiding materials to the material flow channel 7 is provided below the first hopper 4. The first guide plate 12 is provided to facilitate the unadsorbed materials on the upper roller 1 to fall onto the middle roller 2. After the materials adsorbed on the middle roller 2 rotate to the non-magnetic field area, they fall under the action of gravity. Through the guiding action of the second adjusting plate 9 and the second guide plate 13, they fall onto the lower roller 3. The third guide plate 15 is provided. When the material flow channel 7 is closed, the materials are discharged along the blanking channel 5. When the material flow channel 7 is open, the materials fall onto the lower roller 3 through the material flow channel 7. It should be noted that the staff installs the first guide plate 12, the second guide plate 13 and the third guide plate 15 according to needs, so that the materials can be sorted through two paths.

[0018] Both the first adjusting plate 6 and the second adjusting plate 9 are controlled to rotate by a pneumatic valve actuator. Preferably, the pneumatic valve actuator can be controlled by a handwheel or can be automatically controlled. By setting the pneumatic valve actuator, the sorting path of the materials can be changed, which is convenient for adjustment.

[0019] The magnetic field intensities of the upper roller 1, the middle roller 2 and the lower roller 3 increase from small to large, which is convenient for sorting materials with different magnetic properties.

[0020] The rotation directions of the upper roller 1 and the middle roller 2 are the same, and the rotation direction of the lower roller 3 is opposite to that of the upper roller 1 and the middle roller 2, effectively reducing the spatial structure of the magnetic separator and making its structure more compact.

[0021] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A switch for a dry magnetic separator, comprising a magnetic stick group, characterized in that: The magnetic roller group comprises, from top to bottom, an upper roller (1), a middle roller (2) and a lower roller (3); a first material receiving hopper (4) is provided below the upper roller (1); an inclined material discharge channel (5) is provided below the first material receiving hopper (4); a first adjustment plate (6) is provided on one side of the material discharge channel (5); a material flow channel (7) is provided between the first adjustment plate (6) and the material discharge channel (5); the first adjustment plate (6) is rotated to allow the material flow channel (7) to have an opening and closed states, a guide plate (8) and a second adjustment plate (9) are provided between the middle roller (2) and the lower roller (3), a second material receiving hopper (10) and a third material receiving hopper (11) are provided below the guide plate (8) and the second adjustment plate (9), respectively, non-magnetic material enters the second material receiving hopper (10) through the surface of the guide plate (8), and the second adjustment plate (9) rotates to allow weak magnetic material to enter the third material receiving hopper (11) or fall onto the surface of the lower roller (3).

2. A switcher for a dry magnetic separator according to claim 1, characterized in that: A first guide plate (12) is provided between the upper roller (1) and the middle roller (2), a second guide plate (13) is provided between the middle roller (2) and the lower roller (3), the second guide plate (13) is connected end to end with the second adjustment plate (9), and a third guide plate (15) for guiding materials to the material flow channel (7) is provided below the first receiving hopper (4).

3. A switcher for a dry magnetic separator according to claim 2, characterized in that: The rotation of the first adjustment plate (6) and the second adjustment plate (9) are both controlled by the air valve actuator.

4. A switcher for a dry magnetic separator according to claim 3, characterized in that: The magnetic field strength of the upper roller (1), the middle roller (2) and the lower roller (3) increases from small to large.

5. A switcher for a dry magnetic separator according to claim 4, characterized in that: The upper roller (1) and the middle roller (2) rotate in the same direction, and the lower roller (3) rotates in the opposite direction to the upper roller (1) and the middle roller (2).

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