A circular disc type ore dressing machine and an ore dressing method

Abstract

The present invention discloses an annular disc type ore dressing machine and an ore dressing method, which relate to the technical field of ore dressing and include: an annular disc type ore dressing unit and a three-dimensional support unit installed outside the annular disc type ore dressing unit; the annular disc type ore dressing unit includes an annular sorting disc, a rotating device for driving the annular sorting disc to rotate, and an ore receiving tray for receiving materials arranged below the annular sorting disc; a feed pipe, a water supply pipe and a concentrate flushing pipe are installed on the three-dimensional support unit, and a reduction motor connected to the rotating device is also installed.

Description

Technical Field

[0001] The present invention relates to the technical field of ore dressing, and in particular to an annular disc type ore dressing machine and an ore dressing method. Background Art

[0002] The existing gravity ore dressing equipment for separating fine-grained minerals by film separation is mainly various belt launders. Generally, the launder ore dressing equipment has a relatively simple structure and low production cost, and is one of the important ore dressing equipment. At present, the height difference of the existing launder ore dressing machine is large, the utilization rate of the actual separation surface is low, and the separation accuracy is low. Although the centrifugal ore dressing machine has a large processing capacity, its enrichment ratio is very low, and it consumes water and electricity, and the control system is complex.

[0003] The patent "New Non-hanging Disc Ore Dressing Machine" with the application number 201010151008 provides an ore dressing machine with a disc separation surface for rough separation, and other equipment is needed for re-election. The existing gravity ore dressing equipment generally has a low metal recovery rate, especially for fine-grained minerals smaller than 0.04 mm, resulting in a huge waste of resources. Moreover, the unit processing capacity is small. For example, the recovery rate of traditional various shaking tables is extremely low and the processing capacity is small. Summary of the Invention

[0004] The object of the present invention is to provide an annular disc type ore dressing machine and an ore dressing method, which have a simple structure, are convenient to install, have a high enrichment ratio, and can select high-grade concentrate.

[0005] To solve the above problems, one aspect of the present invention provides an annular disc type ore dressing machine, including: an annular disc type ore dressing unit and a three-dimensional support unit; the annular disc type ore dressing unit includes an annular separation disc, a rotating device for driving the annular separation disc to rotate, and a mineral material receiving disc arranged below the annular separation disc for receiving materials; a feed pipe, a water supply pipe and a concentrate flushing pipe are installed on the three-dimensional support unit, and a reduction motor connected to the rotating device is also installed. When in use, the water supply pipe drops water onto the separation disc, and the separation disc rotates under the action of the rotating device and forms a layer of flow film on its surface under the action of the water supply pipe. The feed pipe on the support injects a pulp with a concentration of 30-50% onto the rotating separation disc. When the pulp enters the flow film and rotates with the separation disc. According to the Bagnold theory: when a fluid is subjected to a shear force, the solid particles in it are subjected to a dispersion pressure perpendicular to the direction of the shear force in addition to the shear force in the same direction, so that the material is stratified or suspended. The densities of mineral particles and gangue are different, and finally they are separated under the action of centrifugal force and enter the mineral material receiving disc. The mineral material receiving disc can be divided into different areas to respectively receive concentrate, middlings and tailings, or more levels of classification can be carried out on the separated mineral particles. The rotating device can be a combination of a sprocket and a motor, and preferably a rotation scheme that can accurately control the rotation speed.

[0006] A further technical solution is that snap devices are provided both above and below the three-dimensional support unit, enabling 3 to 5 three-dimensional support units to be stacked. The water supply pipe is an annular pipe provided with a number of evenly distributed drip holes. If it is necessary to improve the processing capacity of the annular disc type ore dressing machine in the present invention, it is necessary to make the sorting disc larger, which will result in a larger floor area. Therefore, the annular disc type ore dressing machine is manufactured modularly. Snap devices are provided both above and below the three-dimensional support unit. During installation, a crane is directly used to stack the annular disc type ore dressing unit and the three-dimensional support unit. When a failure occurs in one of the units, it can be removed, making maintenance more convenient. After installation, the inlet of the ore feeding pipe and the inlet of the water supply pipe are connected. In this way, multiple annular disc type ore dressing units can share a set of water treatment systems, saving costs. The ore receiving trays of each annular disc type ore dressing unit can summarize different receiving intervals.

[0007] A further technical solution is that the annular sorting disc is an inwardly concave conical surface ring with a diameter of 2 to 6 meters and a central opening. The diameter of the central opening in the inwardly concave conical surface ring is 0.6 to 3 meters. The diameter of the annular sorting disc can be 2, 3, 4, 5, or 6 meters, preferably 2 to 4 meters, including but not limited to the above examples. When the diameter of the annular sorting disc is too small, the pulp cannot be fully separated. When the diameter of the annular sorting disc is too large, the manufacturing process requirements are too high and uneconomical. The annular sorting disc is an inwardly concave conical surface ring with a central opening. After the pulp falls onto the sorting disc, it is affected by centrifugal force and gravity and can be sorted on the sorting disc for a longer time, and finally falls into the central opening of the sorting disc. At this time, the ore receiving tray is arranged below the opening. The diameter of the central opening can be 0.6 to 3 meters, specifically depending on the diameter of the sorting disc. When the diameter of the central opening is too small, the sorted pulp cannot be separated through the ore receiving tray, and the concentrate, middlings, and tailings are likely to accumulate together.

[0008] A further technical solution is that the 1 / 2 cone angle of the sorting disc is 172 to 179.9 degrees; the ore receiving tray is arranged below the middle hole of the sorting disc, and a number of partitions are arranged in the ore receiving tray to divide the ore receiving tray into several areas for receiving the concentrate, tailings, and middlings obtained after sorting by the sorting disc. The 1 / 2 cone angle of the sorting disc can be 172, 173, 174, 175, 176, 177, 178, or 179.9 degrees, including but not limited to the above examples. If the cone angle of the sorting disc is too large or too small, it will have an adverse effect on sorting. When the cone angle is too large, the sorting surface of the sorting disc approaches a plane, and the sorting performance drops sharply or even the sorting cannot be completed. When the cone angle is too small, the inclination angle of the sorting surface is too large, and the sorting time of the pulp on the sorting disc is not sufficient.

[0009] A further technical solution is that the water supply pipe is arranged along the circumference of the sorting disk, and water droplets are dripped onto the sorting disk through the water dripping holes. The distance between the water dripping holes on the water supply pipe is less than or equal to 1.5 cm, which can be adjusted according to the actual situation. It is necessary to make the flowing film formed by the water droplets dripping onto the sorting disk cover the used part of the entire sorting disk, which is the basis for sorting the pulp.

[0010] A further technical solution is that an arc-shaped magnetic field is detachably installed below the sorting disk. Using a magnetic field when sorting strongly magnetic minerals can improve the sorting efficiency. Installing a detachable arc-shaped magnetic field below the sorting disk allows the same equipment to be used to separate different types of minerals, saving costs. The annular magnetic field can be composed of several square magnet blocks. It can be arranged with the same radian as the edge of the sorting disk, or with a radian slightly smaller than the edge of the sorting disk, and the circle of the arc-shaped magnetic field is offset from the circle of the sorting disk. The arc-shaped magnetic field can be installed on the three-dimensional support unit. When sorting non-magnetic or weakly magnetic ore materials, the arc-shaped magnetic field can be not used, and it can be disassembled and stored at this time. After installing the arc-shaped magnetic field, the water supply to the sorting disk by the water supply pipe needs to be increased to prevent mineral particles from accumulating on the sorting disk due to the magnetic field.

[0011] A further technical solution is that the feeding port of the feeding pipe is set at point P above the sorting disk. Point P is set at a position close to the edge of the sorting disk. The concentrate flushing pipe is set behind point P along the rotation direction of the sorting disk, close to the middle hole position, and the direction is towards the center of the sorting disk. The position of the feeding port of the feeding pipe can be set at any point above the sorting disk, preferably at point P close to the edge of the sorting disk. At this position, the particulate matter in the pulp has a longer time to stratify before finally falling into the middle opening of the sorting disk. The position of the concentrate flushing pipe is when the angular displacement of the concentrate on the sorting disk is the largest after the pulp is sorted. Installing the concentrate flushing pipe at this place can flush the concentrate onto the ore receiving tray.

[0012] A further technical solution is that the arc magnetic field includes a strong magnetic segment and a weak magnetic segment, the strong magnetic segment is set below point P, and the weak magnetic segment is set below the strong magnetic segment along the rotation direction of the sorting disk. For the separation of both strong magnetic minerals and weak magnetic minerals, the magnetic field is suitable for arranging a weak magnetic field, and the magnetic field is arranged alternately by N, S, N, S... The alternating magnetic pole changes can make the strong magnetic mineral particles produce magnetic system tumbling, which is conducive to the separation of gangue particles and fine mud mixed in the strong magnetic mineral particle group. The length of the magnetic field is suitable for arranging half of the length of the entire process of the annular sorting area of ​​the sorting disk. Compared with the 4 to 5 magnetic pole heads of ordinary magnetic separators, the annular sorting surface of the arc magnetic field can have as many as more than 30 magnetic pole heads. The slurry will undergo dozens of magnetic system tumbling operations when passing through the arc magnetic field, which is conducive to the selection of high-quality concentrates. The size of this weak magnetic field is only enough to make the strong magnetic mineral particle group produce magnetic induction, and be attracted by the magnetic field and greatly slow down the movement speed. Only when the magnetic field disappears will it be carried away by the water flow. The strength of this weak magnetic field is not enough to affect the weak magnetic mineral particle group, and the movement speed of the weak magnetic mineral particles will not be affected. Therefore, the weak magnetic minerals are first subjected to gravity sorting, and the weak magnetic field allows the strong magnetic minerals and weak magnetic minerals to be effectively separated. If you do not consider recovering strong and weak magnetic minerals at the same time, you can use a weak magnetic magnetic field with a short arc. The magnetic field range can be slightly larger than the width of the feed pipe discharge port. The purpose is to allow the strong magnetic minerals to be induced by the magnetic field to form magnetic chains and magnetic beams. After leaving the magnetic field, the magnetic chains and magnetic beams can be quickly carried away by the water flow because of the increase in volume and the decrease in density. Only weak magnetic minerals are left on the sorting surface of the sorting disc for gravity sorting, so that better weak magnetic concentrates can be obtained. If the minerals that need to be separated contain non-magnetic heavy minerals, strong magnetic minerals and weak magnetic minerals, a changing magnetic field from a strong magnetic field to a weak magnetic field can be arranged. A strong magnetic field can be arranged below the feed port of the feed pipe. The magnetic field strength can reach more than 12,000 Gauss. The magnetic minerals can be retained at the edge of the separation ring in the strong magnetic field area and only move with the separation ring, so that the non-magnetic minerals can be separated from the magnetic minerals. The non-magnetic minerals are separated by gravity due to the density difference. The magnetic minerals leave the strong magnetic field range and enter the weak magnetic field arrangement area as the separation disc rotates. The weak magnetic minerals are separated when moving in the weak magnetic field. Finally, the weak magnetic minerals are effectively separated under the action of gravity. After leaving the weak magnetic field, the strong magnetic minerals can also be taken away by the fast water flow.

[0013] A further technical solution is to further include a spray device, which is arranged above the sorting disk and sprays water mist toward the surface of the sorting disk. The spray device sprays atomized water droplets on the sorting surface, and the atomized water droplets gently fall on the flow film of the sorting disk, which has a certain stirring effect on the flow film, and can accelerate the separation of mineral particles in the flow film without destroying the normal movement of the flow film.

[0014] Another aspect of the present invention provides a beneficiation method for an annular disk beneficiator, comprising the following steps:

[0015] S1: Start the reduction motor to rotate the sorting disk at a speed of 0.5 - 1.5 r / min;

[0016] S2: Start the water supply pipe to sprinkle spray water droplets onto the surface of the sorting disk;

[0017] S3: Configure the ore material into a pulp with a concentration of 30 - 50%, and then inject the pulp into point P on the sorting disk through the feed pipe at a predetermined flow rate;

[0018] S4: Collect the sorted ore material through the ore receiving tray.

[0019] If the rotation speed of the sorting disk is too fast or too slow, the pulp cannot be well sorted. The specific speed can be controlled by adjusting the motor speed. When the dissociation degree of the ore material to be sorted is high, the beneficiator provided by the present invention can well sort the ore material, and the grade and recovery rate of the obtained concentrate are both high.

[0020] A further technical solution is that it further includes step SS: Sprinkle water mist on the sorting disk. Spraying atomized water droplets on the sorting surface, the atomized water droplets gently fall on the flow film of the sorting disk, playing a certain stirring role on the flow film, and can accelerate the separation of mineral particles in the flow film without destroying the normal movement of the flow film.

[0021] Principle explanation of the present invention: First, water droplets are dripped onto the surface of the sorting disk through the drip holes on the water supply pipe to form a flow film. When the pulp flows into the sorting disk through the discharge port of the feed pipe, under the action of gravity, the mineral particles tend to move from the edge of the sorting disk to the center. Also, because the sorting disk is rotating, the flow film is subjected to shear force, and layering occurs in the pulp particles in the flow film. Mineral particles with a larger density are in the lower layer, and those with a smaller density are in the upper layer. The particles in the lower layer have a certain frictional force with the sorting disk. Due to the hydraulic suspension effect, the frictional force of the small-density minerals in the upper layer is much smaller than that of the large-density minerals in the lower layer. Therefore, the relative displacement with the sorting disk is smaller than that of the upper-layer particles. Finally, separation is formed between different mineral particles. When the mineral particles move to the circular hole in the center of the sorting disk, they will fall into the ore receiving tray from different arc segments of the circular hole, and finally separation is achieved through the partition in the ore receiving tray.

[0022] The above technical solution of the present invention has the following beneficial technical effects: The annular disc type ore dressing provided by the present invention can effectively separate various minerals with obvious density differences, and can also effectively separate minerals with different magnetic magnitudes. It is suitable for efficiently separating fine-grained and micro-fine-grained minerals. The dry ore processing capacity of a single annular disc type ore dressing unit can reach 400-600 KG per hour, and the fresh water consumption is as low as 0.05 tons per ton of raw ore. The one-time operation recovery rate is greater than or equal to 80%, and the final concentrate can be obtained in one-time operation. The combination of five annular disc type ore dressing units can achieve a processing capacity of 40-60 tons per day. It can select high-quality concentrates, save manufacturing costs, have few moving parts, save electric energy, have high reliability in continuous operation, and is convenient for maintenance. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a ore dressing machine according to Embodiment 1 of the present invention;

[0024] Figure 2 is a top view according to Embodiment 1 of the present invention;

[0025] Figure 3 is a cross-sectional view of an annular disc type ore dressing unit according to Embodiment 1 of the present invention;

[0026] Figure 4 is a cross-sectional view of a ore dressing machine according to Embodiment 1 of the present invention;

[0027] Figure 5 is a schematic diagram of the combination of ore dressing units according to Embodiment 1 of the present invention;

[0028] Figure 6 is a schematic working diagram of a ore dressing machine according to Embodiment 1 of the present invention.

[0029] Reference Numerals: 1: Annular disc type ore dressing unit; 2: Three-dimensional support unit; 3: Rotating device; 4: Ore receiving tray; 5: Feed pipe; 6: Water supply pipe; 7: Concentrate flushing pipe; 8: Arc-shaped magnetic field; 11: Annular sorting disc; 21: Buckle device; 31: Reducing motor; 41: Partition; 42: Concentrate area; 43: Tailings area; 44: Middle area. Detailed Embodiments

[0030] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0031] Embodiment 1

[0032] AsFigures 1 to 4 As shown in the figure, an annular disk type ore dressing machine includes an annular disk type ore dressing unit 1 and a three-dimensional support unit 2. The annular disk type ore dressing unit 1 includes a disk sorting plate with an inner concave conical surface and a diameter of 3 meters with a central opening, where the diameter of the central opening is 0.8 meters, and the 1 / 2 conical surface angle of the sorting plate is 173 degrees. A cylindrical support member is installed below the sorting plate, and a gear is arranged on the cylindrical support member and connected to a speed reducer and a motor through a chain to form a rotating device 3 for driving the sorting plate to rotate. Below the central opening of the sorting plate, there is a mineral receiving plate 4 for receiving materials. Three partitions 41 are arranged in the mineral receiving plate 4 to divide the mineral receiving plate 4 into three areas, namely the concentrate area 42, the tailing area 43, and the middling area 44, for receiving the concentrate, tailings, and middlings obtained after sorting by the sorting plate.

[0033] A feed pipe 5, a water supply pipe 6, a concentrate flushing pipe 7, and a spraying device are installed on the three-dimensional support unit 2, and a speed reduction motor 31 connected to the rotating device 3 is also installed. As Figure 5 shown in the figure, three three-dimensional support units 2 are connected into the three-dimensional structure shown in the figure through a buckle structure; the feed pipe 5 and the water supply pipe 6 on each layer of the three-dimensional support unit 2 are uniformly fed and uniformly supplied with water through a branched interface. The feeding port of the feed pipe 5 is set at point P above the sorting plate, and point P is set at a position close to the edge of the sorting plate. Each layer of the water supply pipe 6 is arranged along the circumference of the sorting plate, and water droplets are dripped onto the sorting plate through water dripping holes. A speed reduction motor 31 is installed on the three-dimensional support unit 2, and the speed reduction motor 31 is connected to the cylindrical support member installed below the sorting plate through a speed reducer and a chain. The concentrate flushing pipe 7 is set at a position behind point P along the rotation direction of the sorting plate and close to the central hole, and the direction is towards the center of the sorting plate. When the pulp is sorted, the angular displacement of the concentrate on the sorting plate is the largest. Setting the concentrate flushing pipe 7 at this place can flush the concentrate onto the mineral receiving plate 4. Each partition of the mineral receiving plate 4 is vertically corresponding, and the sorted concentrate can fall into the concentrate area 42 of the mineral receiving plate 4 of the annular disk type ore dressing unit 1 on the lowest layer, and then be collected, while the tailings and middlings are also collected and processed in the same way.

[0034] A spraying device is also installed on the support of each placement bin above the sorting plate to spray water mist onto the surface of the sorting plate. An arc-shaped magnetic field 8 is detachably installed at a position below the sorting plate on the support of each placement bin. The arc-shaped magnetic field 8 is composed of several magnets, including a strong magnetic section and a weak magnetic section. The strong magnetic section is set below point P, and the weak magnetic section is set below the strong magnetic section along the rotation direction of the sorting plate.

[0035] The equipment realizes modular production and modular combination, and has realized a single-group configuration water treatment system. The whole process realizes stable production, no reagent is added in the whole process, it is clean and pollution-free. And it improves the working environment of workers.

[0036] Use the annular disk type ore separator provided in Example 1 to separate a certain vanadium-titanium magnetite ore in the southwest. The steps are as follows:

[0037] S1: Start the reduction motor 31 to rotate the separation disk at a speed of 1 r / min.

[0038] S2: Start the water supply pipe 6 to sprinkle spray washing water droplets onto the surface of the separation disk, with a water flow rate of 18 - 30 liters per minute.

[0039] S3: Configure the ore material into ore pulp with a particle size of 60 - 0 mesh for feeding and a feeding concentration of 40%, and then inject the ore pulp through the feeding pipe 5 into point P on the separation disk at a flow rate of 400 - 600 KG per hour.

[0040] S4: Collect the separated ore material through the ore material receiving tray 4.

[0041] After the reduction motor 31 is started, spray water mist onto the circular ring-shaped disk type separation surface of the separation disk.

[0042] As Figure 6 shown is the distribution diagram of mineral particles on the separation disk when the annular disk type ore separator provided in Example 1 is used for mineral separation again. As shown in the figure, the ore pulp falls onto the surface of the separation disk at point P. After the separation of the ore pulp by the separation disk, the mineral particles form a spiral distribution as shown. The friction between the heavier concentrate in the ore pulp and the separation disk and the acting force with the magnetic field below will cause the concentrate to take longer to fall into the ore material receiving tray 4, while the tailings are lighter and can quickly fall into the ore material receiving tray 4 under the action of the spray washing water dripped from the water supply pipe 6. The time for the middlings to fall into the ore material receiving tray 4 is between that of the concentrate and the tailings. Therefore, the positions where the concentrate, middlings, and tailings fall into the ore material receiving tray 4 are also different. By setting the partition 41 in the ore material receiving tray 4, the ore material receiving tray 4 can be divided into a concentrate area 42, a tailing area 43, and a middling area 44, and then the ore materials in different areas are respectively introduced into different pipelines for collection.

[0043] Through multiple flotation processes on a certain vanadium-titanium magnetite ore in the southwest, the actual ore dressing recovery rate of titanium dioxide obtained by separation is less than 57%, and the concentrate grade is about 47%. Conducting ore dressing through the flotation process will cause environmental pollution and also bring high costs.

[0044] However, the actual separation results of using the annular disk type ore separator and the ore separation method provided by the present invention for ilmenite are as follows: the concentrate grade is greater than 47%, and the actual ore dressing recovery rate of titanium dioxide in one-time operation reaches 80%. The separation operation will not cause environmental pollution, and the ore dressing cost is greatly reduced.

[0045] It should be understood that the above specific embodiments of the present invention are only for illustrative explanation or interpretation of the principles of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A circular disk type ore dressing machine, characterized in that Comprising: An annular disk beneficiation unit (1) and a three-dimensional support unit (2) installed outside the annular disk beneficiation unit (1); The annular disk beneficiation unit (1) includes an annular separation disk (11), a rotating device (3) for driving the annular separation disk (11) to rotate, and a mineral material receiving disk (4) arranged below the annular separation disk (11) for receiving materials; A feed pipe (5), a water supply pipe (6), and a concentrate flushing pipe (7) are installed on the three-dimensional support unit (2), and a reduction motor (31) connected to the rotating device (3) is also installed; The annular separation disk is an inner concave conical surface ring with a hole in the middle; the water supply pipe (6) is an annular pipe provided with a number of uniformly distributed dripping holes; the water supply pipe is arranged along the circumference of the separation disk; the mineral material receiving disk (4) is arranged below the middle hole of the separation disk, and a number of partitions (41) are arranged in the mineral material receiving disk (4) to divide the mineral material receiving disk (4) into several regions for receiving the concentrate, tailings, and middlings obtained after the separation of the separation disk; An arc-shaped magnetic field is detachably installed below the separation disk; The arc-shaped magnetic field is composed of a number of square magnet blocks, arranged with the same radian as the edge of the separation disk; or arranged with a radian smaller than the radian of the edge of the separation disk, and the circle of the arc-shaped magnetic field is offset from the circle of the separation disk; The feeding port of the feed pipe (5) is set at point P above the separation disk, and point P is set at a position close to the edge of the separation disk; the concentrate flushing pipe (7) is arranged behind point P along the rotation direction of the separation disk, close to the middle hole position, and the direction is towards the center of the separation disk.

2. The annular disk type ore dressing machine according to claim 1, wherein, Snap devices (21) are provided both above and below the three-dimensional support unit (2), and 3 to 5 of the three-dimensional support units (2) can be stacked.

3. The annular disk type ore dressing machine according to claim 1, characterized in that, The annular separation disk (11) is an inner concave conical surface ring with a diameter of 2 to 6 meters and a hole in the middle, and the diameter of the middle hole of the inner concave conical surface ring is 0.6 to 3 meters.

4. The annular disk type ore dressing machine according to claim 3, characterized in that, The 1 / 2 conical angle of the separation disk is 172 to 179.9 degrees.

5. The annular disk type ore dressing machine according to claim 4, characterized in that The water supply pipe (6) is arranged along the circumference of the separation disk, and water droplets are dripped onto the annular separation surface of the separation disk through the dripping holes.

6. The annular disk type ore dressing machine according to claim 1, wherein, The arc-shaped magnetic field (8) includes a strong magnetic section and a weak magnetic section, the strong magnetic section is arranged below point P, and the weak magnetic section is arranged below the strong magnetic section along the rotation direction of the separation disk.

7. The annular disk type ore dressing machine according to claim 1, characterized in that, A spray device is further included, and the spray device is arranged above the separation disk to spray water mist onto the surface of the separation disk.

8. A beneficiation method for the annular disk type ore dressing machine according to any one of claims 1-7, characterized in that, Including the following steps: S1: Start the reduction motor (31) to make the separation disk rotate at a speed of 0.5 to 1.5 r / min; S2: Start the water supply pipe (6) to drip washing water droplets onto the surface of the separation disk; S3: Configure the mineral material into a pulp with a concentration of 30 to 50%, and then feed the pulp into point P on the separation disk through the feed pipe (5) at a predetermined flow rate; S4: Collect the sorted mineral materials through the mineral material receiving disk (4).

9. The ore dressing method according to claim 8, wherein Including the following steps: SS: Spray water mist on the separation disk.

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