A vertical ring high gradient magnetic separator and its separation ring device

Abstract

The present invention relates to a vertical ring high gradient magnetic separator and a sorting ring device thereof, wherein the sorting ring device comprises a sorting ring body, a plurality of medium boxes are arranged on the sorting ring body, a medium box partition is arranged between adjacent medium boxes, the circumferential side plates of the medium box partition are wedge-shaped side surfaces for contacting and cooperating with the opposite side surfaces of two adjacent medium boxes, the sorting ring device also comprises a medium box reinforcement structure, the medium box reinforcement structure comprises an expansion strip, the expansion strip has an expansion portion extending from the inside to the outside between the inner ends of two adjacent medium boxes, the outer end of the expansion strip is arranged at intervals with the inner end of the corresponding medium box partition, the expansion strip is provided with an expansion strip bolt through hole, the medium box partition is provided with a partition bolt through hole corresponding to the expansion strip bolt through hole, and a tension bolt mechanism is installed between the expansion strip bolt through hole and the partition bolt through hole. The present invention solves the technical problem in the prior art that the single-end cantilever of the medium box is not firmly fixed and is prone to shaking, which causes the magnetic material to fall.

Description

Technical Field

[0001] The invention relates to a supporting equipment in the field of ore pulp magnetic material separation, in particular to a vertical ring high gradient magnetic separator and a separation ring device thereof. Background Art

[0002] The most commonly used method for separating weakly magnetic minerals at home and abroad is wet high-intensity magnetic separation, and the conventional equipment for wet high-intensity magnetic separation is a magnetic field vertical ring high-gradient magnetic separator, which has a wide range of magnetic field strengths and a high maximum field strength. It is suitable for separating a wide variety of minerals and has many excellent properties.

[0003] Vertical ring high gradient magnetic separator has the advantages of large enrichment ratio, high dressing efficiency, low dressing cost, wide adaptability, high equipment operation rate, long service life, easy installation and small maintenance workload. It is widely used in the dressing of weak magnetic ores such as iron oxide ore, ilmenite, manganese ore, chromite, tungsten ore, and purification of non-metallic minerals such as quartz, feldspar, kaolin, and its application in wastewater and solid waste treatment and comprehensive utilization is becoming more and more extensive.

[0004] The existing vertical ring high-gradient magnetic separator includes an upper magnetic pole, a lower magnetic pole and a sorting ring device. An arc-shaped sorting space with an axis extending in the front-to-back direction is formed between the upper magnetic pole and the lower magnetic pole. The sorting ring device includes a sorting ring with an axis extending in the front-to-back direction and a lower end located in the sorting space. The sorting ring is driven by a power mechanism, which is generally a motor power mechanism. The sorting ring includes a plurality of medium boxes arranged in sequence along the circumferential direction. A medium box partition is provided between adjacent medium boxes, and one end of the medium box is fixed to the medium box partition.

[0005] When in use, the upper magnetic pole and the lower magnetic pole generate a magnetic field in the sorting space. When the sorting ring rotates through the magnetic field, the medium box is magnetized when entering the magnetic field and absorbs the magnetic material. After the sorting ring rotates out of the sorting space, the ore is unloaded by flushing water or a combination of water and steam to finally obtain the target mineral.

[0006] The existing problems of this type of sorting ring device are as follows: the medium box is fixed in a cantilevered manner, that is, only one end of the medium box is connected to the medium box partition, and there is a gap between the medium box and the medium box partition, and the size of the gap is difficult to control and is random; due to the existence of the gap, the medium box will swing when entering and exiting the magnetic field, that is, after entering the magnetic field, the medium box is magnetic and will be adsorbed and moved closer to the medium box partition. After the medium box leaves the magnetic field, the medium box and the medium box partition change from an adsorbed state to a separated (recovered) state; and due to the swing of the medium box, the vertical ring height ladder is caused. The magnetic separator repeatedly undergoes an adsorption-separation cycle during operation, and the medium box continuously impacts the medium box partition. Under this impact, the connection between the medium box and the medium box partition becomes looser, and the gap between the medium box and the medium box partition becomes larger, causing a vicious cycle. In addition, since the medium box will experience adsorption-separation posture changes, which is somewhat similar to the momentary posture of pause and jitter, the magnetic material adsorbed on the magnetic medium box will fall off, and the detached magnetic material will enter the tailings, resulting in a problem of reduced recovery rate of the target mineral and high grade of the box tailings. Summary of the invention

[0007] The object of the present invention is to provide a sorting ring device to solve the technical problem in the prior art that the single-end cantilever of the medium box is not firmly fixed and is prone to shaking, resulting in the falling of magnetic materials.

[0008] In order to solve the above technical problems, the technical solution of the sorting ring device in the present invention is as follows:

[0009] A sorting ring device of a vertical ring high-gradient magnetic separator comprises a sorting ring body whose axis extends along the front-to-back direction and is driven by a power mechanism, a plurality of medium boxes arranged in sequence along the circumferential direction are arranged on the sorting ring body, a medium box partition is arranged between adjacent medium boxes, the end of the medium box away from the axis of the sorting ring body is the outer end, the outer end of the medium box is connected to the corresponding medium box partition, the circumferential side plate surfaces of the medium box partition are wedge-shaped side surfaces for contacting and cooperating with the opposite side surfaces of two adjacent medium boxes, the sorting ring device also comprises a medium box reinforcement structure, the medium box reinforcement structure comprises a tensioning strip whose length extends along the front-to-back direction, the tensioning strip has a tensioning portion extending from the inside to the outside between the inner ends of two adjacent medium boxes, the outer end of the tensioning strip is spaced apart from the inner end of the corresponding medium box partition, at least two tensioning strip bolt through holes spaced apart along the front-to-back direction are provided on the tensioning strip, the medium box partition is provided with a partition bolt through hole corresponding to the tensioning strip bolt through hole, and a tensioning bolt mechanism is installed between the tensioning strip bolt through hole and the partition bolt through hole.

[0010] Furthermore, the tension bolt mechanism includes a screw rod, the screw rod includes a screw rod head pressed against the inner side of the expansion strip, the screw rod has a threaded section located outside the medium box partition, and the tension bolt mechanism also includes a locking nut threadedly connected to the threaded section.

[0011] Furthermore, the expansion strip includes an expansion strip body, and the expansion strip body includes a left side plate and a right side plate of the body connected at the inner ends, the spacing between the left side plate and the right side plate of the body gradually increases from the outer end to the inner end, the inner end of the left side plate of the body is provided with a left side plate flange, and the inner end of the right side plate of the body is provided with a right side plate flange, the expansion part is composed of the left side plate surface of the left side plate of the body and the right side plate surface of the right side plate of the body, and the circumferential sides of the screw head have wedge-shaped surfaces of the screw head that are pressed against the opposite sides of the left side plate and the right side plate of the body.

[0012] Furthermore, the expansion strip also includes a reinforcement strip fixed to the outer end of the expansion strip body, and the expansion strip bolts are through-holes that penetrate the reinforcement strip and the expansion strip body.

[0013] Furthermore, a connecting ear plate is fixed at the outer end of the medium box, and ear plate bolt holes are arranged on the connecting ear plate. The connecting ear plate and the locking nut are staggered, and a connecting nut corresponding to the ear plate bolt holes is fixed on the medium box partition.

[0014] The technical solution of the neutral ring high gradient magnetic separator of the present invention is:

[0015] A vertical ring high gradient magnetic separator comprises an upper magnetic pole, a lower magnetic pole and a sorting ring device, wherein the sorting ring device comprises a sorting ring body whose axis is extended in the front-rear direction and is driven by a power mechanism, wherein a plurality of medium boxes arranged in sequence along the circumferential direction are arranged on the sorting ring body, and a medium box partition is arranged between adjacent medium boxes, wherein one end of the medium box away from the axis of the sorting ring body is an outer end, and the outer end of the medium box is connected to the corresponding medium box partition, and the circumferential side plate surfaces of the medium box partition are wedge-shaped side surfaces for contacting and cooperating with the opposite side surfaces of two adjacent medium boxes, The sorting ring device also includes a medium box reinforcement structure, which includes a tensioning strip whose length extends in the front-to-back direction. The tensioning strip has an tensioning portion extending from the inside to the outside between the inner ends of two adjacent medium boxes. The outer end of the tensioning strip is spaced apart from the inner end of the corresponding medium box partition. The tensioning strip is provided with at least two tensioning strip bolt through holes spaced apart along the front-to-back direction. The medium box partition is provided with partition bolt through holes corresponding to the tensioning strip bolt through holes. A tensioning bolt mechanism is installed between the tensioning strip bolt through holes and the partition bolt through holes.

[0016] Furthermore, the tension bolt mechanism includes a screw rod, the screw rod includes a screw rod head pressed against the inner side of the expansion strip, the screw rod has a threaded section located outside the medium box partition, and the tension bolt mechanism also includes a locking nut threadedly connected to the threaded section.

[0017] Furthermore, the expansion strip includes an expansion strip body, and the expansion strip body includes a left side plate and a right side plate of the body connected at the inner ends, the spacing between the left side plate and the right side plate of the body gradually increases from the outer end to the inner end, the inner end of the left side plate of the body is provided with a left side plate flange, and the inner end of the right side plate of the body is provided with a right side plate flange, the expansion part is composed of the left side plate surface of the left side plate of the body and the right side plate surface of the right side plate of the body, and the circumferential sides of the screw head have wedge-shaped surfaces of the screw head that are pressed against the opposite sides of the left side plate and the right side plate of the body.

[0018] Furthermore, the expansion strip also includes a reinforcement strip fixed to the outer end of the expansion strip body, and the expansion strip bolts are through-holes that penetrate the reinforcement strip and the expansion strip body.

[0019] Furthermore, a connecting ear plate is fixed at the outer end of the medium box, and ear plate bolt holes are arranged on the connecting ear plate. The connecting ear plate and the locking nut are staggered, and a connecting nut corresponding to the ear plate bolt holes is fixed on the medium box partition.

[0020] The beneficial effects of the present invention are as follows: in the present invention, the outer end of the medium box is connected to the outer end of the medium box partition, and at the same time, a tightening bolt mechanism is installed in the bolt through-holes of the expansion strip and the bolt through-holes of the partition, and the inner end of the medium box is tightened by the tightening action of the tightening bolt mechanism, thereby fixing the two ends of the medium box. At the same time, under the action of the tightening bolt mechanism, the wedge-shaped side surfaces on both sides of the medium box partition are in contact with the relative side surfaces of the two adjacent medium boxes to ensure that there is no gap between the medium box and the medium box partition, and the medium box is firmly fixed. In the process of entering and exiting the magnetic field, the medium box will not sway or shake, which not only ensures the connection between the medium box and the medium box partition, but also prevents the magnetic material from falling into the tailings due to the swaying of the medium box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1 It is a structural schematic diagram of an embodiment of a sorting ring device in the present invention;

[0023] Figure 2 yes Figure 1 AA section view in;

[0024] Figure 3 yes Figure 2 The enlarged view of point B in the figure;

[0025] Figure 4 yes Figure 1The enlarged view of point C in the figure;

[0026] Figure 5 yes Figure 3 Schematic diagram of the structure of the middle screw;

[0027] Figure 6 yes Figure 5 A top view of the middle screw;

[0028] Figure 7 yes Figure 5 A three-dimensional view of the middle screw;

[0029] Figure 8 yes Figure 3 Schematic diagram of the structure of the middle expansion strip;

[0030] Fig. 9 yes Figure 8 Side view of

[0031] Fig.10 yes Fig. 9 A top view of

[0032] Fig.11 yes Fig. 9 Bottom view of

[0033] Fig.12 yes Fig. 9 Stereoscopic image of

[0034] Fig.13 yes Figure 3 A schematic diagram of the structure of the medium box partition;

[0035] Fig.14 yes Fig.13 Side view of

[0036] Fig.15 yes Fig.13 A top view of

[0037] Fig.16 yes Fig.13 Bottom view of

[0038] Fig.17 yes Fig.13 Stereoscopic image of

[0039] Explanation of the reference numerals: 1. screw; 2. expansion strip; 3. locking nut; 3-1. fastening nut; 3-2. anti-loosening nut; 4. dielectric box partition; 5. dielectric box; 6. upper magnetic pole; 7. screw head; 8. connecting ear plate; 9. threaded section; 10. wedge-shaped surface of screw head; 11. expansion strip body; 12. reinforcement strip; 13. left side plate of body; 14. right side plate of body; 15. left side plate fold edge; 16. right side plate fold edge; 17. through hole for expansion strip bolt; 18. wedge-shaped side surface; 19. connecting nut. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0041] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] An embodiment of a vertical ring high gradient magnetic separator of the present invention is as follows: Figures 1 to 17 As shown: it includes an upper magnetic pole 6, a lower magnetic pole (not shown in the figure) and a sorting ring device, there is an arc-shaped sorting space between the upper magnetic pole and the lower magnetic pole, the axis of the sorting space extends along the front-to-back direction, and material channels are arranged in the upper magnetic pole and the lower magnetic pole.

[0043] The sorting ring device includes a sorting ring body whose axis is extended in the front-to-back direction and is driven by a power mechanism, and the lower end of the sorting ring body is located in the sorting space. A plurality of medium boxes 5 arranged in circumferential order are arranged on the sorting ring body, and a medium box partition 4 is arranged between adjacent medium boxes 5. The end of the medium box away from the axis of the sorting ring body is defined as the outer end, and the end close to the axis of the sorting ring body is defined as the inner end. The outer end of the medium box is connected to the corresponding medium box partition, and the above belongs to the prior art. When in use, the sorting ring body rotates under the drive of the power mechanism, and the medium box located in the sorting space has adsorption capacity after magnetization, thereby adsorbing and taking away the magnetic substances in the slurry, and the remaining slurry is the target mineral flowing into the tailings.

[0044] In the present invention, the circumferential side plate surfaces of the medium box partition are wedge-shaped side surfaces 18 for contacting and cooperating with the opposite side surfaces of the two adjacent medium boxes. The sorting ring device also includes a medium box fixing structure. The medium box fixing structure includes a tensioning strip 2 whose length extends along the front-to-back direction. The tensioning strip 2 has an tensioning portion extending from the inside to the outside between the inner ends of the two adjacent medium boxes. The outer end of the tensioning strip is spaced apart from the inner end of the corresponding medium box partition 4. The tensioning strip is provided with two tensioning strip bolt through holes 17 spaced apart along the front-to-back direction. The medium box partition is provided with a partition bolt through hole 17 corresponding to the tensioning strip bolt through hole. A tensioning bolt mechanism is installed between the tensioning strip bolt through hole 17 and the partition bolt through hole.

[0045] The expansion strip includes an expansion strip body 11 which is formed by bending a metal plate. The expansion strip also includes a reinforcing strip 12 welded and fixed to the outer end of the expansion strip body 11. The length of the reinforcing strip 12 is less than that of the expansion strip. The expansion strip bolt perforation 17 penetrates through the reinforcing strip 12 and the expansion strip body 11.

[0046] The expansion strip body includes a left body plate 13 and a right body plate 14 with their inner ends connected. The distance between the left body plate 13 and the right body plate 14 gradually increases from the outer end to the inner end. The inner end of the left body plate 13 is provided with a left plate flange 15, and the inner end of the right body plate 14 is provided with a right plate flange 16. The outer ends of the left body plate and the right body plate are connected by a connecting plate, and the entire expansion strip body forms a shape similar to the Chinese character "ji". The tensioning bolt mechanism includes a screw rod. The screw rod 1 includes a screw head 7 that abuts against the inner side of the expansion strip. The screw rod has a threaded section 9 located outside the partition of the medium box. The tensioning bolt mechanism also includes a locking nut 3 threadedly connected to the threaded section 9.

[0047] In this embodiment, the locking nut 3 includes a fastening nut 3-1 that contacts the outside of the partition of the medium box. The locking nut also includes a locknut 3-2 located outside the fastening nut. The expansion part is composed of the left side surface of the left body plate and the right side surface of the right body plate. The left body plate and the left plate flange, as well as the right body plate and the right plate flange, respectively form a bent corner structure to prevent the expansion strip 2 from moving outwards excessively under the tensioning action of the screw rod.

[0048] A connecting ear plate 8 is fixed to the outer end of the medium box. The connecting ear plate 8 is provided with an ear plate bolt perforation. The connecting ear plate and the locking nut are arranged staggeredly. A connecting nut 19 corresponding to the ear plate bolt perforation is fixed to the outer end of the partition of the medium box. During use, the outer end of the medium box can be fixed to the partition of the medium box by inserting a connecting bolt through the ear plate bolt perforation and the connecting nut.

[0049] Take the roughing of magnetic separation of a certain hematite as an example: a vertical magnetic system high gradient magnetic separator with a vertical ring diameter of 2500mm is used for separation. In order to avoid the problems described in this patent, the tension bolt mechanism in this patent is used to reinforce the medium box. The expansion strip body adopts a stainless steel plate with a thickness of 2mm, the width of the connecting plate of the expansion strip body is 5mm, the thickness and width of the reinforcement strip are 5mm, and the two expansion strip bolt holes on the expansion strip are symmetrically distributed, with a hole diameter of 4.5mm. The narrowest part of the screw head is 5mm wide, which can be embedded in the inner groove of the expansion strip to support both sides. The screw is a cylinder passing through the 5mm diameter partition bolt hole, and the screw is locked with a tightening nut and a locking nut on the wide plane of the outer end of the medium box partition until the medium box is locked and cannot move. The same device is used to reinforce all the medium boxes in the entire sorting ring until no medium box can move. When selecting hematite under a field strength of 7000Oe, after one year of operation, there was no swinging of the medium box in and out of the magnetic field, impact on the partition, shaking, or partition falling off. Compared with the selection effect of a conventional high-gradient magnetic separator of the same model for selecting the same hematite, the comprehensive recovery rate of the concentrate was increased by 5.6%.

[0050] Take the roughing of a certain black and white tungsten ore as an example: the magnetic separation adopts a vertical magnetic system high gradient magnetic separator with a vertical ring diameter of 1750mm for separation. In order to avoid the problems described in this patent, the tension bolt mechanism in this patent reinforces the medium box. The expansion strip body adopts a stainless steel plate with a thickness of 2mm, the width of the connecting plate of the expansion strip body is 4.5mm, the thickness and width of the reinforcement strip are 4.5mm, and the two expansion strip bolt holes on the expansion strip are symmetrically distributed, with a hole diameter of 4.0mm. The narrowest part of the screw head is 4.5mm wide and can be embedded in the inner groove of the expansion strip to support both sides. The screw is a cylinder that passes through the 4.5mm diameter partition bolt hole. The screw is locked with a tightening nut and an anti-loosening nut on the outer end plane of the medium box until the medium box is locked and cannot move. The same device is used to reinforce all the medium boxes in the entire sorting ring until no medium box can move. When selecting black and white tungsten ore under a field strength of 8000Oe, there was no phenomenon of medium box swinging in and out of the magnetic field, impacting the partition, shaking, and partition falling off after half a year of operation. Compared with the selection effect of the same model of conventional high-gradient magnetic separator for selecting the same black and white tungsten ore, the comprehensive recovery rate of the concentrate was increased by 5.0%.

[0051] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0052] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0053] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A separation ring device of a vertical ring high gradient magnetic separator, comprising a separation ring body driven by a power mechanism and having an axis extending in a front-to-rear direction, a plurality of medium boxes arranged in a circumferential order are arranged on the separation ring body, a medium box partition is arranged between adjacent medium boxes, an end of the medium box away from the axis of the separation ring body is an outer end, and the outer end of the medium box is connected to the corresponding medium box partition, characterized in that: The circumferential side plate surfaces of the medium box partition are wedge-shaped side surfaces for contacting and cooperating with the opposite side surfaces of two adjacent medium boxes. The sorting ring device also includes a medium box reinforcement structure. The medium box reinforcement structure includes a tensioning strip whose length extends along the front-to-back direction. The tensioning strip has an tensioning portion that extends from the inside to the outside and extends between the inner ends of the two adjacent medium boxes. The outer end of the tensioning strip is spaced apart from the corresponding inner end of the medium box partition. The tensioning strip is provided with at least two tensioning strip bolt through holes spaced apart along the front-to-back direction. The medium box partition is provided with a partition bolt through hole corresponding to the tensioning strip bolt through hole. A tensioning bolt mechanism is installed between the tensioning strip bolt through hole and the partition bolt through hole.

2. The sorting ring device according to claim 1, characterized in that: The tension bolt mechanism comprises a screw rod, the screw rod comprises a screw rod head which is pressed against the inner side of the expansion strip, the screw rod has a threaded section which is located outside the medium box partition, and the tension bolt mechanism also comprises a locking nut which is threadedly connected to the threaded section.

3. The sorting ring device according to claim 2, characterized in that: The expansion strip includes an expansion strip body, which includes a left side plate and a right side plate of the body connected at the inner ends. The spacing between the left side plate and the right side plate of the body gradually increases from the outer end to the inner end. The inner end of the left side plate of the body is provided with a left side plate flange, and the inner end of the right side plate of the body is provided with a right side plate flange. The expansion portion is composed of the left side plate surface of the left side plate of the body and the right side plate surface of the right side plate of the body. The circumferential sides of the screw head have wedge-shaped surfaces of the screw head that are pressed against the opposite sides of the left side plate and the right side plate of the body.

4. The sorting ring device according to claim 3 is characterized in that: The expansion strip also includes a reinforcement strip fixed to the outer end of the expansion strip body, and the expansion strip bolts are bored through the reinforcement strip and the expansion strip body.

5. The sorting ring device according to any one of claims 2 to 4, characterized in that: A connecting ear plate is fixed at the outer end of the medium box, and ear plate bolt holes are arranged on the connecting ear plate. The connecting ear plate and the locking nut are staggered, and a connecting nut corresponding to the ear plate bolt holes is fixed on the medium box partition.

6. A vertical ring high gradient magnetic separator, comprising an upper magnetic pole, a lower magnetic pole and a sorting ring device, the sorting ring device comprising a sorting ring body driven by a power mechanism and having an axis extending in the front-rear direction, a plurality of medium boxes arranged in sequence along the circumferential direction are arranged on the sorting ring body, a medium box partition is arranged between adjacent medium boxes, an end of the medium box away from the axis of the sorting ring body is an outer end, and the outer end of the medium box is connected to the corresponding medium box partition, characterized in that: The circumferential side plate surfaces of the medium box partition are wedge-shaped side surfaces for contacting and cooperating with the opposite side surfaces of two adjacent medium boxes. The sorting ring device also includes a medium box reinforcement structure. The medium box reinforcement structure includes a tensioning strip whose length extends along the front-to-back direction. The tensioning strip has an tensioning portion that extends from the inside to the outside and extends between the inner ends of the two adjacent medium boxes. The outer end of the tensioning strip is spaced apart from the corresponding inner end of the medium box partition. The tensioning strip is provided with at least two tensioning strip bolt through holes spaced apart along the front-to-back direction. The medium box partition is provided with a partition bolt through hole corresponding to the tensioning strip bolt through hole. A tensioning bolt mechanism is installed between the tensioning strip bolt through hole and the partition bolt through hole.

7. The vertical ring high gradient magnetic separator according to claim 6, characterized in that: The tension bolt mechanism comprises a screw rod, the screw rod comprises a screw rod head which is pressed against the inner side of the expansion strip, the screw rod has a threaded section which is located outside the medium box partition, and the tension bolt mechanism also comprises a locking nut which is threadedly connected to the threaded section.

8. The vertical ring high gradient magnetic separator according to claim 7, characterized in that: The expansion strip includes an expansion strip body, which includes a left side plate and a right side plate of the body connected at the inner ends. The spacing between the left side plate and the right side plate of the body gradually increases from the outer end to the inner end. The inner end of the left side plate of the body is provided with a left side plate flange, and the inner end of the right side plate of the body is provided with a right side plate flange. The expansion portion is composed of the left side plate surface of the left side plate of the body and the right side plate surface of the right side plate of the body. The circumferential sides of the screw head have wedge-shaped surfaces of the screw head that are pressed against the opposite sides of the left side plate and the right side plate of the body.

9. The vertical ring high gradient magnetic separator according to claim 8, characterized in that: The expansion strip also includes a reinforcement strip fixed to the outer end of the expansion strip body, and the expansion strip bolts are bored through the reinforcement strip and the expansion strip body.

10. The vertical ring high gradient magnetic separator according to any one of claims 6 to 9, characterized in that: A connecting ear plate is fixed at the outer end of the medium box, and ear plate bolt holes are arranged on the connecting ear plate. The connecting ear plate and the locking nut are staggered, and a connecting nut corresponding to the ear plate bolt holes is fixed on the medium box partition.

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