Medium box for fine fraction separation of vertical ring high gradient magnetic separator

Abstract

The utility model discloses a medium box for fine fraction separation of a vertical ring high-gradient magnetic separator, which belongs to the technical field of magnetic mineral separation equipment and comprises two fixing plates. At least one supporting plate is located between the two fixing plates. The two ends of the multiple reinforcing medium rods are connected with the fixing plate and penetrate through the supporting plate. The multiple reinforcing medium rods are distributed along the edge and form a medium containing cavity with the fixing plate. A plurality of spaced medium rods are positioned in the medium accommodating chamber, and two ends of the spaced medium rods are connected with the fixing plate and penetrate through the supporting plate; the diameter of the spacing medium rod is not greater than that of the reinforcing medium rod; the magnetic medium is embedded in a gap between the adjacent interval medium rods; the reinforcing medium rods and the spacing medium rods penetrate through the supporting plate and are fixedly connected with the fixing plate, so that the structural strength can be improved; the reinforcing medium rods, the spacing medium rods and the magnetic medium are arranged in order, so that a compact mineral separation medium can be formed, and the recovery rate of fine-fraction minerals is increased; and the magnetic medium can be conveniently pulled out and cleaned, so that the cleaning difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral magnetic separation equipment, and particularly relates to a medium box for fine particle fractionation of a vertical ring high-gradient magnetic separator. Background Art

[0002] A vertical ring high-gradient magnetic separator is an important device for separating weakly magnetic metal ores (such as hematite, limonite, etc.) and removing iron from non-metallic ores (such as quartz, feldspar, etc.) by using magnetic force. The vertical ring high-gradient magnetic separator is provided with exciting coils capable of generating a magnetic field, and a continuously rotating sorting ring is installed on the upper part. Medium boxes capable of adsorbing weakly magnetic substances are fixedly installed on the circumference of the sorting ring. The lower part of the rotating ring is located in the magnetic induction area of the exciting coils and the magnetic poles and is immersed in the pulp. The pulp passes through the feeding box from top to bottom, enters the internal flow channel of the magnetic poles and passes through the medium box to the lower discharging box. During the continuous rotation of the sorting ring, the medium box immersed in the pulp adsorbs magnetic substances and is then rotated to the upper non-magnetic area. High-pressure water arranged above the medium box flushes the medium box to wash the magnetic substances into the collecting hopper for collection and discharge.

[0003] At present, the magnetic medium inside the medium box installed on the sorting ring is usually a magnetic stainless steel rod. The magnetic stainless steel rod and a non-magnetic stainless steel plate are welded into a box-shaped structure. This kind of medium box has the following deficiencies: First, the diameter of the medium rod is relatively thick, and the magnetic field gradient is relatively small. It is mainly suitable for separating some weakly magnetic minerals with coarser particle sizes. For medium and fine particle fractions of weakly magnetic materials with a particle size of more than 0.063 mm and some coarse particle fractions, the sorting effect is better; for fine particle materials with a particle size of ≤0.063 mm, due to the relatively increased magnetization difficulty of fine particle materials, the recovery rate of magnetic substances decreases, and it is easy to run ore. Second, in order to ensure the structural strength, the diameter of the medium rod is generally 1.6 - 6 mm. The two ends of the medium rod are welded to the end faces of the side plates of the medium box. When the medium rod is thinner, the welding area is smaller, and the firmness is limited to a certain extent. If a medium rod with a smaller diameter is used, under the alternating stress state of a strong magnetic field, the medium rod is prone to breakage and has a short service life; at the same time, when the medium rod falls off and mixes into the pulp, it is easy to cause damage to subsequent equipment. Third, some medium boxes also fill multiple layers of steel wire meshes inside. Since the mesh holes of the multiple layers of steel wire meshes overlap and stagger after being stacked solidly, the medium filling density is relatively large, the flow of ore particles is tortuous, and blind channels or dead corners are likely to occur in some areas, resulting in the obstruction of the flow of ore particles and extremely easy to cause blockage of the medium box. Due to the structural limitations of the vertical ring high-gradient magnetic separator, the unloading of the medium box can only adopt open flushing for unloading. Although using multiple layers of steel wire meshes can improve the sorting effect of fine particle materials, as the residual unloading of the medium box increases, it will be blocked and unable to be used, making it difficult to promote and apply.

[0004] Therefore, it is an urgent problem to be solved at present to research and develop a medium box for fine particle fractionation of a vertical ring high-gradient magnetic separator that can improve the recovery rate of fine particle minerals, reduce the cleaning difficulty of the medium box, and improve the service life of the medium box. Content of the Utility Model

[0005] Regarding the problems existing in the prior art, the present utility model provides a medium box for fine particle separation of a vertical ring high-gradient magnetic separator. Both ends of the reinforcement medium rods and the spacer medium rods pass through the support plate and are fixedly connected to two fixing plates, which can effectively improve the structural strength of the medium rods. At the same time, the reinforcement medium rods, the spacer medium rods and the magnetic medium are arranged in an orderly manner, which can form a dense mineral separation medium, effectively improve the recovery rate of fine-grained minerals. And when blockage occurs, the magnetic medium can be conveniently pulled out from the gaps between the spacer medium rods for cleaning, reducing the cleaning difficulty of the medium box and improving the service life of the medium box.

[0006] In order to achieve the above object, the technical solution adopted by the present utility model is as follows:

[0007] The present utility model provides a medium box for fine particle separation of a vertical ring high-gradient magnetic separator, including:

[0008] Two fixing plates arranged in parallel;

[0009] At least one support plate, the support plate is located between the two fixing plates and is arranged parallel to the fixing plates;

[0010] A plurality of reinforcement medium rods, the reinforcement medium rods are located between the two fixing plates and pass through the support plate, and both ends of the reinforcement medium rods are fixedly connected to the two fixing plates respectively; a plurality of the reinforcement medium rods are distributed along the edges of the fixing plates, and a plurality of the reinforcement medium rods and the two fixing plates form a medium accommodating chamber;

[0011] A plurality of spacer medium rods, the spacer medium rods are located in the medium accommodating chamber, the spacer medium rods pass through the support plate, and both ends of the spacer medium rods are fixedly connected to the two fixing plates respectively; the diameter of the spacer medium rods is not greater than the diameter of the reinforcement medium rods;

[0012] Magnetic medium, the magnetic medium is embedded in the gaps between adjacent spacer medium rods.

[0013] As a preferred technical solution, the magnetic medium includes a first magnetic medium and a second magnetic medium, the first magnetic medium is a medium net, and the second magnetic medium is a medium rod assembly.

[0014] As a preferred technical solution, the first magnetic medium and the second magnetic medium are arranged alternately;

[0015] And / or, the surfaces of the medium net and the medium rod assembly are both coated with wear-resistant coatings.

[0016] As a preferred technical solution, the mesh holes of the medium net are diamond-shaped;

[0017] And / or, one or more layers of the dielectric mesh are provided between adjacent ones of the spaced dielectric rods.

[0018] As a preferred technical solution, the dielectric rod assembly is in a grate shape and is formed by splicing a plurality of dielectric rods, and the cross section of the dielectric rod is set to be rectangular, triangular or elliptical;

[0019] And / or, one or more layers of the dielectric rod assemblies are provided between adjacent ones of the spaced dielectric rods.

[0020] As a preferred technical solution, the diameter of the reinforcing dielectric rod is set to be 1.8 - 6 mm;

[0021] And / or, the diameter of the spaced dielectric rod is set to be 0.5 - 1.5 mm.

[0022] As a preferred technical solution, the materials of the fixing plate and the supporting plate are both set to be stainless steel;

[0023] And / or, the materials of the reinforcing dielectric rod and the spaced dielectric rod are both set to be magnetically conductive stainless steel.

[0024] As a preferred technical solution, the supporting plate is provided with matching through holes corresponding to the positions of the reinforcing dielectric rod and the spaced dielectric rod respectively.

[0025] As a preferred technical solution, both the reinforcing dielectric rod and the spaced dielectric rod are perpendicular to the fixing plate;

[0026] And / or, both ends of the reinforcing dielectric rod and the spaced dielectric rod are welded to the fixing plate.

[0027] As a preferred technical solution, both the fixing plate and the supporting plate are rectangular and have the same size;

[0028] And / or, the projections of the supporting plate and the fixing plate in the direction perpendicular to the fixing plate coincide with each other.

[0029] The beneficial effects of the present utility model are shown in:

[0030] Both ends of the reinforcing dielectric rod and the spaced dielectric rod of the present utility model pass through the supporting plate and are fixedly connected to two fixing plates, the structure is more reasonable, and the structural strength of the dielectric rod can be effectively improved. At the same time, the reinforcing dielectric rod, the spaced dielectric rod and the magnetic medium are arranged in an orderly manner, and a dense mineral separation medium can be formed, the scope of use and applicability are improved, the recovery rate of fine-grained minerals is effectively increased, and when blockage occurs, the magnetic medium can be conveniently pulled out from the gap between the spaced dielectric rods for cleaning, the cleaning difficulty of the dielectric box is reduced, and the service life of the dielectric box is increased. Description of the Drawings

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a medium box for fine particle fraction selection of a vertical ring high-gradient magnetic separator of the present utility model;

[0032] Figure 2 is Figure 1 an enlarged view of area A in;

[0033] Figure 3 is Figure 1 a schematic diagram of the structure of the medium net in;

[0034] Figure 4 is Figure 1 a schematic diagram of the structure of the medium rod assembly in.

[0035] In the figure: 1 - fixing plate, 2 - support plate, 3 - reinforcing medium rod, 4 - spacer medium rod, 5 - medium net, 6 - medium rod assembly, 61 - medium rod. Specific embodiments

[0036] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0037] Please refer to Figures 1-4 , which is an embodiment of a medium box for fine particle fraction selection of a vertical ring high-gradient magnetic separator provided by the present utility model, including two fixing plates 1 arranged in parallel; a support plate 2 parallel to the two fixing plates 1 is arranged between the two fixing plates 1; a plurality of reinforcing medium rods 3 and a plurality of spacer medium rods 4 both pass through the support plate 2. While being able to fix the support plate 2, the support plate 2 can improve the structural strength of the reinforcing medium rods 3 and the spacer medium rods 4, and can avoid the spacer medium rods 4 from breaking, improving their service life; both ends of the reinforcing medium rods 3 and the spacer medium rods 4 are fixedly connected to the two fixing plates 1 respectively, and moreover, the diameter of the spacer medium rods 4 is not greater than the diameter of the reinforcing medium rods 3, which can form a medium box while ensuring the structural strength; wherein, a plurality of reinforcing medium rods 3 are distributed along the edge of the fixing plate 1, and the plurality of reinforcing medium rods 3 and the two fixing plates 1 form a medium accommodation chamber. The spacer medium rods 4 are located in the medium accommodation chamber. At the same time, the magnetic medium is embedded in the gaps between adjacent spacer medium rods 4 to form a push-pull filling structure. Under the limitation of the fixing plate 1 and the support plate 2, the gap width is small. Correspondingly, the width of the magnetic medium is small, which is convenient for embedding and taking out, and can effectively separate and recover minerals; and, the spacer medium rods 4 with a smaller diameter can increase the gap, which is convenient for assembling the magnetic medium and does not hinder the flow of ore particles.

[0038] In other embodiments, the number of the support plates 2 can also be set to two or more, based on being able to ensure the structural strength of the reinforcing medium rods 3 and the spacer medium rods 4 and being convenient for embedding the magnetic medium.

[0039] Specifically, the reinforcing dielectric rods 3 are preferably distributed at the entrance and exit of the mineral, and the diameter of the reinforcing dielectric rods 3 is preferably set to 1.8-6 mm, which can ensure the structural strength; the spacing dielectric rods 4 are preferably distributed between the entrance and exit of the mineral, and the diameter of the spacing dielectric rods 4 is preferably set to 0.5-1.5 mm, which can improve the sorting effect of fine-grained materials while avoiding blockage as much as possible; in order to ensure the sorting effect, the material of the fixed plate 1 and the support plate 2 is preferably set to stainless steel, and the material of the reinforcing dielectric rods 3 and the spacing dielectric rods 4 is preferably set to magnetic stainless steel.

[0040] Furthermore, in order to facilitate the reinforcing dielectric rods 3 and the spacing dielectric rods 4 to pass through the support plate 2 and position the support plate 2, the support plate 2 is provided with matching through holes corresponding to the reinforcing dielectric rods 3 and the spacing dielectric rods 4 respectively.

[0041] In this embodiment, please refer to Figures 1-4 The magnetic medium preferably includes a first magnetic medium and a second magnetic medium. The first magnetic medium is set as a medium network 5, and the second magnetic medium is set as a medium rod assembly 6. In actual use, a single magnetic medium or a mixture of two magnetic media can be selected according to the particle size of the mineral.

[0042] For further information, please refer to Figure 1 and Figure 2 The first magnetic medium and the second magnetic medium are alternately arranged in the medium containing chamber, which can achieve the best mineral separation effect.

[0043] It should be noted that the surfaces of the medium net 5 and the medium rod assembly 6 are preferably coated with a wear-resistant coating to prevent the medium net 5 and the medium rod assembly 6 from being excessively eroded by the mineral flow without affecting the sorting effect.

[0044] In this embodiment, please refer to Figure 3 The mesh of the medium net 5 is set to be diamond-shaped, which can effectively separate minerals and facilitate production and processing; in other embodiments, the mesh of the medium net 5 can also be set to be square, which is based on the ability to effectively separate minerals.

[0045] It should be noted that in order to ensure that the dielectric net 5 can be stably embedded and fixed in the gaps between the dielectric rods 4 and improve the sorting effect, one or more layers of dielectric net 5 are provided between adjacent dielectric rods 4 according to the gap width.

[0046] In this embodiment, please refer to Figure 4, the dielectric rod assembly 6 is in the shape of a grate and is formed by splicing and fixing a number of longitudinal and transverse dielectric rods 61 by welding. The cross-section of the dielectric rod 61 is set as an ellipse; in other embodiments, the cross-section of the dielectric rod 61 can also be circular, rectangular or triangular, as long as it can ensure the structural strength and separation effect of the dielectric rod assembly 6;

[0047] Similarly, in order to ensure that the dielectric rod assembly 6 can be stably embedded and fixed in the gap between the spaced dielectric rods 4 and improve the separation effect, one or more layers of dielectric rod assemblies 6 are provided between adjacent spaced dielectric rods 4.

[0048] In this embodiment, please refer to Figure 1 and Figure 2 , in order to ensure the structural strength of the dielectric box and facilitate processing and production, the reinforcing dielectric rod 3 and the spaced dielectric rod 4 are both preferably perpendicular to the fixing plate 1; in other embodiments, the angles between the reinforcing dielectric rod 3 and the spaced dielectric rod 4 and the fixing plate 1 are non-right angles, as long as it can ensure the structural strength and facilitate the embedding of the magnetic medium.

[0049] It should be noted that both ends of the reinforcing dielectric rod 3 and the spaced dielectric rod 4 are preferably fixedly connected to the fixing plate 1 by welding.

[0050] Specifically, please refer to Figure 1 , the fixing plate 1 and the support plate 2 are both preferably rectangular and of the same size, and the projections of the support plate 2 and the fixing plate 1 in the direction perpendicular to the fixing plate 1 coincide with each other, so that the dielectric box is in the shape of a cuboid, which is convenient for production, installation and use; in other embodiments, the fixing plate 1 and the support plate 2 can also be of other shapes, and the support plate 2 can also be slightly smaller than the fixing plate 1, as long as it can ensure the structural strength, the mineral separation effect and facilitate production and processing.

[0051] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The medium box for fine particle fraction selection of a vertical ring high-gradient magnetic separator is characterized in that, Including: Two parallel fixed plates (1); At least one support plate (2), the support plate (2) is located between the two fixed plates (1) and is arranged parallel to the fixed plates (1); A number of reinforcing medium rods (3), the reinforcing medium rods (3) are located between the two fixed plates (1) and pass through the support plate (2), and both ends of the reinforcing medium rods (3) are fixedly connected to the two fixed plates (1) respectively; a number of the reinforcing medium rods (3) are distributed along the edge of the fixed plate (1), and a number of the reinforcing medium rods (3) and the two fixed plates (1) form a medium accommodating chamber; A number of spacer medium rods (4), the spacer medium rods (4) are located in the medium accommodating chamber, the spacer medium rods (4) pass through the support plate (2), and both ends of the spacer medium rods (4) are fixedly connected to the two fixed plates (1) respectively; the diameter of the spacer medium rods (4) is not greater than the diameter of the reinforcing medium rods (3); Magnetic medium, the magnetic medium is embedded in the gap between adjacent spacer medium rods (4).

2. The fine particle fraction selection medium box of the vertical ring high-gradient magnetic separator according to claim 1, characterized in that, The magnetic medium includes a first magnetic medium and a second magnetic medium, the first magnetic medium is set as a medium mesh (5), and the second magnetic medium is set as a medium rod assembly (6).

3. The medium box for fine particle fraction selection of the vertical ring high-gradient magnetic separator according to claim 2, characterized in that, The first magnetic medium and the second magnetic medium are arranged alternately; And / or, the surfaces of the medium mesh (5) and the medium rod assembly (6) are both coated with wear-resistant coatings.

4. The fine particle fraction selection medium box of the vertical ring high-gradient magnetic separator according to claim 2, characterized in that, The mesh holes of the medium mesh (5) are set as rhombus; And / or, one layer or multiple layers of the medium mesh (5) are arranged between adjacent spacer medium rods (4).

5. The medium box for fine particle fraction selection of the vertical ring high-gradient magnetic separator according to claim 2, characterized in that, The medium rod assembly (6) is in a grate shape and is formed by splicing a number of medium rods (61), and the cross section of the medium rods (61) is set as a rectangle, a triangle or an ellipse; And / or, one layer or multiple layers of the medium rod assembly (6) are arranged between adjacent spacer medium rods (4).

6. The medium box for fine particle fraction selection of the vertical ring high-gradient magnetic separator according to claim 1, characterized in that The diameter of the reinforcing medium rods (3) is set as 1.8 - 6 mm; And / or, the diameter of the spacer medium rods (4) is set as 0.5 - 1.5 mm.

7. The medium box for fine particle fraction selection of the vertical ring high-gradient magnetic separator according to claim 1, characterized in that, The materials of the fixed plate (1) and the support plate (2) are both set as stainless steel; And / or, the materials of the reinforcing medium rods (3) and the spacer medium rods (4) are both set as magnetically conductive stainless steel.

8. The fine particle fraction selection medium box of the vertical ring high-gradient magnetic separator according to claim 1, characterized in that, The support plate (2) is respectively provided with matching through holes at positions corresponding to the reinforcing medium rods (3) and the spacer medium rods (4).

9. The fine particle fraction selection medium box of the vertical ring high-gradient magnetic separator according to claim 1 or 8, characterized in that The reinforcing medium rods (3) and the spacer medium rods (4) are both perpendicular to the fixed plate (1); And / or, both ends of the reinforcing medium rods (3) and the spacer medium rods (4) are welded to the fixed plate (1).

10. The medium box for fine particle fraction selection of the vertical ring high-gradient magnetic separator according to claim 1, characterized in that, The fixed plate (1) and the support plate (2) are both rectangular and of the same size; And / or, the projections of the support plate (2) and the fixed plate (1) in the direction perpendicular to the fixed plate (1) coincide with each other.

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