Classification magnetic separation device and method for leucite type minerals

Abstract

The invention discloses a grading magnetic separation device and method for leucite type minerals, and relates to the technical field of mineral magnetic separation.The device comprises a driving structure and at least two magnetic separation assemblies arranged from top to bottom, each magnetic separation assembly comprises a magnetic separation shell, a magnetic separation roller and a scraping plate, and a discharging opening is formed in each magnetic separation shell; the magnetic separation shells of the adjacent magnetic separation assemblies communicate with each other, the magnetic separation shells are arranged on the outer sides of the magnetic separation rollers in a sleeving mode, the driving structure is used for driving the magnetic separation rollers to rotate, and magnetic blocks are arranged on the magnetic separation rollers and used for adsorbing materials. The strength of the magnetic blocks of the magnetic separation roller at the upper stage is smaller than that of the magnetic blocks of the magnetic separation roller at the lower stage, the material scraping plate is used for scraping materials adsorbed by the magnetic blocks, and the materials scraped by the material scraping plate are discharged from the material discharging opening. According to the grading magnetic separation device and method for the leucite type minerals, grading treatment can be achieved through the same device.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral magnetic separation, in particular to a device and method for classifying magnetic separation of eclogite-type minerals. Background Art

[0002] Due to their unique composition and structural properties, eclogite-type minerals have long been a focus of research in the mineral processing field. The magnetic components in these minerals are finely embedded and closely coexist with non-magnetic minerals, making efficient separation difficult with conventional magnetic separation equipment. Furthermore, existing magnetic separation equipment often operates on a single magnetic field strength, making it incapable of classifying minerals of varying magnetic strengths. This classification can only be achieved through the use of multiple magnetic separators. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for the classification magnetic separation of eclogite-type minerals, which can achieve classification processing through the same device.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a grading magnetic separation device for eclogite-type minerals, comprising: a driving structure and at least two magnetic separation components arranged from top to bottom, the magnetic separation components comprising a magnetic separation shell, a magnetic separation roller and a scraper plate, the magnetic separation shell being provided with a discharge port, the magnetic separation shells of adjacent magnetic separation components being connected, the magnetic separation shells being sleeved on the outer side of the magnetic separation roller, the driving structure being used to drive the magnetic separation roller to rotate, the magnetic separation roller being provided with a magnetic block, the magnetic block being used to adsorb material, the strength of the magnetic block of the magnetic separation roller of the upper level being less than the strength of the magnetic block of the magnetic separation roller of the lower level, the scraper plate being used to scrape off material adsorbed by the magnetic block, and the material scraped off by the scraper plate being discharged from the discharge port.

[0006] In some specific solutions, a flushing structure is further included, wherein the water outlet of the flushing structure is arranged toward the scraper plate, and the flushing structure is used to flush the material on the scraper plate into the discharge port.

[0007] In some specific schemes, the feed hopper, the middling hopper and the tailings hopper, the feed hopper is located above the uppermost magnetic separation component, the feed port of the magnetic separation shell of the uppermost magnetic separation component is connected to the discharge port of the feed hopper, the discharge port of the magnetic separation shell of the lowermost magnetic separation component is connected to the tailings hopper, and the discharge port of the magnetic separation shell is connected to the middling hopper.

[0008] In some specific solutions, the tailings bucket is connected to a vibration structure, and the tailings bucket is provided with a drain pipe and an overflow pipe.

[0009] In some specific solutions, a flushing structure is provided at the feed hopper, and the flushing structure is used to flush the material.

[0010] In some specific schemes, several magnetic block groups are arranged on the magnetic separation roller along the axial direction of the magnetic separation roller, each of the magnetic block groups includes several magnetic blocks arranged along the circumference of the magnetic separation roller, and a medium box is arranged between adjacent magnetic blocks of the same magnetic block group, and the medium box is detachably connected to the magnetic separation roller.

[0011] In some specific embodiments, the media box is a wedge-shaped structure, the inner end of the media box is smaller than the outer end of the media box, the inner end of the media box is arranged close to the magnetic separation roller, and the outer end of the media box is arranged away from the magnetic separation roller.

[0012] In some specific solutions, a plurality of partitions are provided on the magnetic separation roller along the axial direction of the magnetic separation roller, and the magnetic block groups are provided between adjacent partitions.

[0013] The present invention also provides a magnetic separation method using the eclogite-type mineral classification magnetic separation device, comprising:

[0014] Crushing the material to form a suspension;

[0015] The suspension is placed in the magnetic separation shell of the uppermost magnetic separation component. The magnetic separation roller rotates, and the magnet on the magnetic separation roller of the uppermost magnetic separation component adsorbs the material. The material adsorbed on the magnetic separation roller is scraped off by the scraper and discharged from the discharge port. The material not adsorbed enters the magnetic separation shell of the next magnetic separation component.

[0016] After the material is adsorbed in each magnetic separation component from top to bottom, the unadsorbed material is discharged from the magnetic separation shell of the last magnetic separation component;

[0017] The unadsorbed materials are crushed again to form a suspension for the next round of magnetic separation until the magnetic separation is completed.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The present invention includes at least two magnetic separation components arranged from top to bottom. The magnetic separation components are integrated together to achieve at least two levels of magnetic separation. The magnetic separation rollers rotate simultaneously, and the materials adsorbed on the magnetic separation rollers can be scraped off by scraper plates. By setting the strength of the magnetic block of the upper-level magnetic separation roller to be smaller than the strength of the magnetic block of the lower-level magnetic separation roller, the magnetic strength of the material adsorbed by the upper-level magnetic separation roller is greater than the magnetic strength of the material adsorbed by the lower-level magnetic separation roller, thereby achieving graded magnetic separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A front view of a device for magnetic separation of eclogite-type minerals in some embodiments of the present invention;

[0022] Figure 2 A side view of a device for magnetic separation of eclogite-type minerals in some embodiments of the present invention;

[0023] Figure 3 A front view of a tailings bucket in some embodiments of the present invention;

[0024] Figure 4 is a cross-sectional view of a tailings bucket in some embodiments of the present invention;

[0025] Figure 5 A bottom view of a tailings bucket in some embodiments of the present invention;

[0026] Figure 6 Schematic diagram of a magnetic separation roller in some embodiments of the present invention;

[0027] Figure 7 is a flow chart of a magnetic separation method in some embodiments of the present invention;

[0028] In the figure: 1. Flushing structure; 2. Weak magnetic field magnetic separation roller; 21. Medium box frame; 22. Partition; 23. Medium box; 3. Motor; 4. Strong magnetic field magnetic separation roller; 5. Tailings bucket; 51. Drain pipe; 52. Connecting flange; 53. Overflow pipe; 6. Magnetic separation shell; 7. Main body bracket; 8. Transmission structure; 9. Shaft; 10. Punching structure; 11. Scraper; 12. Middling ore bucket; 13. Collection pipe; 14. Vibration structure. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a device and method for the classification magnetic separation of eclogite-type minerals, which can achieve classification processing through the same device.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1 to 6 As shown, this embodiment provides a grading magnetic separation device for eclogite-type minerals, including: a main support 7 and a driving structure arranged on the main support 7 and at least two magnetic separation components arranged from top to bottom, the magnetic separation component including a magnetic separation shell 6, a magnetic separation roller and a scraper plate 11, the magnetic separation shell 6 is provided with a discharge port, the magnetic separation shells 6 of adjacent magnetic separation components are connected, the magnetic separation shell 6 is sleeved on the outside of the magnetic separation roller, the magnetic separation roller is rotatably connected to the magnetic separation shell 6, the driving structure is used to drive the magnetic separation roller to rotate, the magnetic separation roller is provided with a magnetic block, the magnetic block is used to adsorb materials, the strength of the magnetic block of the magnetic separation roller of the upper level is less than the strength of the magnetic block of the magnetic separation roller of the lower level, the scraper plate 11 is used to scrape off the material adsorbed by the magnetic block, and the material scraped off by the scraper plate 11 is discharged from the discharge port. This embodiment includes at least two magnetic separation components arranged from top to bottom. The magnetic separation components are integrated together to achieve at least two levels of magnetic separation. The magnetic separation rollers rotate simultaneously, and the materials adsorbed on the magnetic separation rollers can be scraped off by the scraper plates 11. By setting the strength of the magnetic block of the upper-level magnetic separation roller to be smaller than the strength of the magnetic block of the lower-level magnetic separation roller, the magnetic strength of the material adsorbed by the upper-level magnetic separation roller is greater than the magnetic strength of the material adsorbed by the lower-level magnetic separation roller, thereby achieving graded magnetic separation.

[0034] In some embodiments, the drive structure includes a motor 3 and a reducer. The power output of the motor 3 is connected to the power input of the reducer. The power output of the reducer is connected to a magnetic separation roller through a shaft 9. The magnetic separation rollers are connected by a transmission structure 8. The transmission structure 8 includes gears and chains. Each magnetic separation roller is provided with a gear. Each gear is connected by a chain transmission to achieve synchronous rotation of each magnetic separation roller. The module of the gear is 4-6, and the pitch of the chain is 15.875mm. When there are two magnetic separation components, the magnetic separation roller with weaker magnetism is the weak magnetic field magnetic separation roller 2, and the magnetic separation roller with stronger magnetism is the strong magnetic field magnetic separation roller 4. The speed ratio of the weak magnetic field magnetic separation roller 2 to the strong magnetic field magnetic separation roller 4 is 1:1.2-1.5. During the installation process, the gears and chain need to be lubricated, and special gear oil and chain lubricant must be used to ensure smooth transmission.

[0035] In the specific implementation of some embodiments, the scraper plate 11 is arranged on the outside of the magnetic separation roller. The scraper plate 11 is made of rubber. The contact pressure between the scraper plate 11 and the magnetic separation roller is 0.1-0.3MPa, and the installation angle of the scraper plate 11 and the tangent direction of the magnetic separation roller surface is 60-75°.

[0036] In some specific implementations of the embodiments, when there are two magnetic separation assemblies, the magnetic field strength corresponding to the magnetic separation roller with weaker magnetism is 80-150 mT, and the magnetic field strength corresponding to the magnetic separation roller with stronger magnetism is 300-500 mT.

[0037] In some embodiments, two flushing structures 10 are further included. The water outlets of the two flushing structures 10 are arranged toward the scraper plate 11. The flushing structures 10 are used to flush the material on the scraper plate 11 into the discharge port.

[0038] In the specific implementation manner of some embodiments, the feed hopper, the middling hopper 12 and the tailings hopper 5, the feed hopper is located above the uppermost magnetic separation component, the feed port of the magnetic separation shell 6 of the uppermost magnetic separation component is connected to the discharge port of the feed hopper, the discharge port of the magnetic separation shell 6 of the lowermost magnetic separation component is connected to the tailings hopper 5, and the discharge port of the magnetic separation shell 6 is connected to the middling hopper 12, and the middling hoppers 12 are connected through a collecting pipe 13.

[0039] In some embodiments, the tailings hopper 5 is provided with a drain pipe 51, an overflow pipe 53, and a connecting flange 52. The drain pipe 51 is located at the bottom of the tailings hopper 5, and the overflow pipe 53 is located higher than the drain pipe 51. The tailings hopper 5 is connected to the vibration structure 14 via the connecting flange 52. The vibration structure 14 is used to drive the tailings hopper 5 to vibrate. The vibration structure 14 is a vibrating cylinder, and other structures capable of achieving vibration may also be used. The vibration frequency of the vibration structure 14 is 20-50 Hz, the amplitude is 2-5 mm, and the vibration time interval is 30-60 seconds.

[0040] In some embodiments, a flushing structure 1 is provided at the feed hopper, located above the feed hopper, for flushing the material. The flushing structure 1 includes a plurality of flushing nozzles distributed in an array, each with a diameter of 2-5 mm.

[0041] In specific implementations of some embodiments, the magnetic separation roller includes a medium box frame 21, and a plurality of magnetic block groups are arranged on the medium box frame 21 along the axial direction of the magnetic separation roller. Each magnetic block group includes a plurality of magnetic blocks arranged along the circumference of the magnetic separation roller. A medium box 23 is arranged between adjacent magnetic blocks of the same magnetic block group, and the medium box 23 is detachably connected to the medium box frame 21 by bolts.

[0042] In the specific implementation of some embodiments, the medium box 23 is a wedge-shaped structure, the size of the inner end of the medium box 23 is smaller than the size of the outer end of the medium box 23, the inner end of the medium box 23 is arranged close to the magnetic separation roller, and the outer end of the medium box 23 is arranged away from the magnetic separation roller. A space with a certain taper is formed between adjacent medium boxes 23, so that the medium box 23 can limit the magnetic block.

[0043] In some embodiments, a plurality of partitions 22 are provided along the axial direction of the magnetic separation roller, and the magnetic blocks are arranged between adjacent partitions 22. When installing the magnetic blocks, the magnetic blocks are placed between adjacent media boxes 23. Then, the bolts are rotated, which push the media boxes 23 toward the magnetic separation roller, thereby limiting the position of the magnetic blocks and ensuring their alignment.

[0044] During installation, hoist the topmost magnetic separation roller to the preset installation position on the upper end of the main support 7 and secure it with bolts to ensure a secure installation. Connect the reducer and motor 3 and adjust the position of motor 3 to ensure that the concentricity error between the reducer and the magnetic separation roller does not exceed ±0.5mm to ensure smooth transmission and reduce equipment wear.

[0045] Install the feed hopper and flushing structure 1 above the topmost magnetic separation assembly. The feed hopper and flushing structure 1 are detachably connected to facilitate maintenance and replacement. Connect the flushing structure 1 to the high-pressure water line, ensuring the flushing pressure reaches 0.5-1.2 MPa. Adjust the angle of the flushing nozzle so that its tangential direction at the contact point with the magnetic separation roller is 30-45 degrees.

[0046] A scraper 11 is installed on the side of the magnetic separation roller. It is bolted to the main bracket 7 and extends into the magnetic separation housing 6. The contact pressure between the scraper 11 and the surface of the magnetic separation roller is adjusted to 0.1-0.3 MPa, and the installation angle is 60-75° relative to the tangent direction of the magnetic separation roller surface. Two flushing structures 10 are installed on the side of the scraper 11 and connected to the flushing water pipeline to ensure that any residual magnetic minerals on the surface of the scraper 11 can be effectively sprayed and flushed.

[0047] The tailings hopper 5 is installed at the bottom of the lowest magnetic separation shell 6. The bottom of the tailings hopper 5 is connected to the drain pipe 51, the side wall is connected to the overflow pipe 53, and the front is connected to the vibration structure 14 through the connecting flange 52. The middle ore hopper 12 is located below the scraper 11 of each magnetic separation roller and is connected to the adjacent middle ore hopper 12 through the collection pipe 13.

[0048] After the equipment is installed, conduct a comprehensive commissioning operation. First, start the motor 3 without load and check the rotation of each magnetic separation roller to ensure smooth rotation without abnormal noise or vibration. Then, gradually increase the load and observe the stability of the equipment during operation and the working condition of each component. Adjust parameters such as the flushing water pressure and the vibration frequency and amplitude of the vibrating structure 14 to meet the design requirements. Check the equipment's electrical control system to ensure that all sensors and controllers are functioning properly and can achieve real-time monitoring and control of the equipment's operating status.

[0049] In this embodiment, at least two magnetic separation rollers are arranged on the same magnetic separator, and the classification processing of minerals with different magnetic strengths is realized by at least two magnetic separation rollers. The magnetic separation roller at the top performs preliminary screening of the minerals to separate the minerals with stronger magnetism, and then performs secondary magnetic separation. The number of magnetic separations is the same as the number of magnetic separation rollers, thereby improving the recovery rate and concentrate grade. When there are multiple magnetic separation rollers, the magnetism of the minerals screened by each magnetic separation roller decreases from top to bottom. Adjacent magnetic block groups are separated by partitions 22, and adjacent magnetic blocks in each magnetic block group are separated by a medium box 23. The wedge-shaped medium box 23 facilitates the installation of the magnetic blocks. The tailings bucket 5 is prevented from clogging by a vibration structure 14, and is suitable for the efficient separation of eclogite-type minerals.

[0050] Example 2

[0051] like Figure 7 As shown, this embodiment provides a magnetic separation method for eclogite-type mineral classification magnetic separation device using the first embodiment, comprising:

[0052] Install and debug the classification magnetic separation device for eclogite-type minerals;

[0053] After debugging is completed, the material (eclogite-type mineral raw material) is crushed to a particle size of 0.1-5mm. During crushing, the appropriate crusher type and crushing parameters, such as jaw crusher, cone crusher, etc., are selected according to the hardness and particle size requirements of the material; the crushed mineral raw material is sent to a ball mill or other wet grinding equipment. During the wet grinding process, the mass ratio of grinding medium to material is 3:1-5:1, and the grinding medium is steel balls, ceramic balls, etc. The grinding time is 15-30 minutes. During the grinding process, an appropriate amount of water is added to form a suspension with a particle size of 0.01-0.3mm. In order to improve the grinding efficiency and dispersion effect, a dispersant with a mass fraction of 0.5-1% can be added during the grinding process;

[0054] The suspension is fed into the feed hopper, and the magnetic separation roller (weak magnetic field magnetic separation roller 2) is flushed through the flushing structure 1 to avoid the occurrence of magnetic clusters or magnetic chains. The flushing water pressure is 0.5-1.2 MPa, and the flushing angle is 30-45° to the tangential direction of the magnetic separation roller. The suspension enters the magnetic separation shell 6 of the uppermost magnetic separation component, and the magnetic separation roller rotates. The magnet on the magnetic separation roller of the uppermost magnetic separation component adsorbs the material. The material (magnetic material) adsorbed on the magnetic separation roller is scraped off by the scraper 11 and discharged from the discharge port into the middle ore bucket 12. At the same time, the scraper 11 is flushed by the flushing structure 10 so that the material on the scraper 11 can enter the middle ore bucket 12 to avoid material residue on the scraper 11. The unadsorbed material (non-magnetic material and some unseparated minerals) enters the magnetic separation shell 6 of the next level of magnetic separation component for the next level of magnetic separation;

[0055] After the material is adsorbed in each magnetic separation component from top to bottom, the unadsorbed material is discharged from the magnetic separation shell 6 of the last magnetic separation component into the tailings bucket 5, which is the tailings. The tailings bucket 5 is vibrated by the vibration structure 14 with a vibration frequency of 20-50Hz, an amplitude of 2-5mm, and a vibration time interval of 30-60s to prevent tailings accumulation and blockage;

[0056] Part of the tailings is transported to the grinding mill through a pipeline for crushing, and the return ratio is 10%-30% of the total tailings for re-grinding and forming a suspension for the next round of magnetic separation. The remaining liquid is discharged through the drain pipe 51 and overflow pipe 53 of the tailings hopper 5 for centralized treatment, such as storage, landfill or comprehensive utilization. During the re-grinding process, the grinding fineness of the grinding mill is controlled to be 200 mesh, accounting for 80-90%, and an appropriate amount of dispersant is added to improve the grinding effect and magnetic separation efficiency.

[0057] Repeat the above process until the magnetic separation is completed.

[0058] When two magnetic separation assemblies are used, the upper magnetic separation assembly separates the magnetic minerals into concentrate, while the lower magnetic separation assembly separates the magnetic minerals into middlings. The purity of the magnetic minerals after the concentrate and middlings are combined is no less than 95%. The collected concentrate and middlings undergo subsequent treatments such as dehydration and drying to obtain finished minerals.

[0059] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0060] In the description of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; they may refer to mechanical or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application.

[0061] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integrated molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0062] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes include states or shapes that are approximate, similar, or close thereto.

[0063] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0064] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0065] It should also be noted that in the embodiments of the present application, the same figure mark represents the same component or the same part.

[0066] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0067] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A magnetic separation device for eclogite-type minerals, characterized in that: include: A driving structure and at least two magnetic separation components arranged from top to bottom, the magnetic separation component includes a magnetic separation shell, a magnetic separation roller and a scraper, the magnetic separation shell is provided with a discharge port, the magnetic separation shells of adjacent magnetic separation components are connected, the magnetic separation shell is sleeved on the outside of the magnetic separation roller, the driving structure is used to drive the magnetic separation roller to rotate, the magnetic separation roller is provided with a magnetic block, the magnetic block is used to adsorb materials, the strength of the magnetic block of the magnetic separation roller of the upper level is less than the strength of the magnetic block of the magnetic separation roller of the lower level, the scraper is used to scrape off the material adsorbed by the magnetic block, and the material scraped off by the scraper is discharged from the discharge port.

2. The eclogite-type mineral classification magnetic separation device according to claim 1, characterized in that: It also includes a flushing structure, the water outlet of which is arranged toward the scraper plate, and the flushing structure is used to flush the material on the scraper plate into the discharge port.

3. The eclogite-type mineral classification magnetic separation device according to claim 1, characterized in that: A feed hopper, a middling hopper and a tailings hopper, wherein the feed hopper is located above the uppermost magnetic separation component, the feed port of the magnetic separation shell of the uppermost magnetic separation component is connected to the discharge port of the feed hopper, the discharge port of the magnetic separation shell of the lowermost magnetic separation component is connected to the tailings hopper, and the discharge port of the magnetic separation shell is connected to the middling hopper.

4. The eclogite-type mineral classification magnetic separation device according to claim 3, characterized in that: The tailings bucket is connected to the vibration structure and is provided with a drain pipe and an overflow pipe.

5. The eclogite-type mineral classification magnetic separation device according to claim 3, characterized in that: The feed hopper is provided with a flushing structure, which is used to flush the material.

6. The eclogite-type mineral classification magnetic separation device according to claim 1, characterized in that: Several magnetic block groups are arranged on the magnetic separation roller along the axial direction of the magnetic separation roller, and each magnetic block group includes several magnetic blocks arranged along the circumference of the magnetic separation roller. A medium box is arranged between adjacent magnetic blocks in the same magnetic block group, and the medium box is detachably connected to the magnetic separation roller.

7. The eclogite-type mineral classification magnetic separation device according to claim 6, characterized in that: The media box is a wedge-shaped structure. The size of the inner end of the media box is smaller than the size of the outer end of the media box. The inner end of the media box is arranged close to the magnetic separation roller, and the outer end of the media box is arranged away from the magnetic separation roller.

8. The eclogite-type mineral classification magnetic separation device according to claim 6, characterized in that: A plurality of partitions are arranged on the magnetic separation roller along the axial direction of the magnetic separation roller, and the magnetic block groups are arranged between adjacent partitions.

9. A magnetic separation method for eclogite-type minerals using the grading magnetic separation device according to any one of claims 1 to 8, characterized in that: include Crushing the material to form a suspension; The suspension is placed in the magnetic separation shell of the uppermost magnetic separation component. The magnetic separation roller rotates, and the magnet on the magnetic separation roller of the uppermost magnetic separation component adsorbs the material. The material adsorbed on the magnetic separation roller is scraped off by the scraper and discharged from the discharge port. The material not adsorbed enters the magnetic separation shell of the next magnetic separation component. After the material is adsorbed in each magnetic separation component from top to bottom, the unadsorbed material is discharged from the magnetic separation shell of the last magnetic separation component; The unadsorbed materials are crushed again to form a suspension for the next round of magnetic separation until the magnetic separation is completed.

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