Vortex mineralization-static separation flotation device, and flotation method

Abstract

A vortex mineralization-static separation flotation device, comprising: a static separator having a separation cavity (20) and a vortex mineralization device having a mineralization cylinder (30), wherein a raw-ore treatment line and a middlings treatment line are arranged in the separation cavity (20); a vortex mineralization line is arranged in the mineralization cylinder; an outlet (A2) of the raw-ore treatment line is connected to an inlet (B1) of the vortex mineralization line; an outlet (B2) of the vortex mineralization line is connected to an inlet (C1) of the middlings treatment line; raw-ore pulp enters the separation cavity (20) to obtain middlings ore pulp; the middlings ore pulp enters the vortex mineralization line for enhanced mineralization and then enters the middlings treatment line for separation; and finally, ore concentrates are collected at the top of the separation cavity (20). Minerals are sequentially subjected to countercurrent mineralization, cyclone mineralization and vortex mineralization in a flow direction, such that a corresponding turbulent dissipation cascade is enhanced and a turbulent vortex scale cascade is reduced, thus adapting to the mineralization and flotation of mineral particles of different particle sizes and achieving efficient flotation recovery. Also provided is a flotation method for the vortex mineralization-static separation flotation device.

Description

Eddy current mineralization-static separation flotation device and flotation method

[0001] This application claims priority to “A Vortex Mineralization-Static Separation Flotation Device and Flotation Method” with application number 202311403204.5 filed on October 26, 2023, and the original accepting agency is China. Technical Field

[0002] The invention belongs to the technical field of mineral flotation, and in particular relates to an eddy current mineralization-static separation flotation device and a flotation method. Background Art

[0003] The difficulty in effectively recovering fine-grained minerals is the main obstacle to improving the recovery rate of low-quality mineral resources. Flotation is currently the main method for processing fine-grained minerals. It uses bubbles as a carrier and, based on the differences in hydrophobicity on the surface of mineral particles, separates useful minerals from gangue minerals in a complex gas-liquid-solid three-phase system. During the flotation process, mineral particles and bubbles are fully dispersed and collide with each other under the action of the fluid. Hydrophobic particles adhere to the surface of the bubbles, forming a foam layer as the bubbles float up and are collected to obtain concentrate. Hydrophilic particles, however, are difficult to adhere to the surface of the bubbles and remain in the flotation tank as tailings.

[0004] During the mineral flotation mineralization process, the mineral physical properties and floatability characteristics show a nonlinear relationship, that is, fine particles and coarse particles are difficult to float, while medium-sized particles are easy to float; weakly hydrophobic particles are difficult to float, while strongly hydrophobic particles are easy to float. The scientific reason is that fine particles are easily affected by fluid streamlines during the collision process, lacking sufficient gravity and inertia, and it is difficult for them to break through the fluid streamlines and collide with bubbles; coarse particles, due to their large mass and kinetic energy, slide quickly on the bubble surface, with a short contact time, making it difficult for them to adhere and easily desorbed by external forces; weakly hydrophobic particles, due to their weak hydrophobic force, find it difficult to break through the liquid film between bubbles and particles to adhere, and their adhesion is weak, making them easily desorbed under the influence of the fluid.

[0005] A large number of studies have shown that there is a fluid scale effect in the flotation mineralization process, that is, within a certain range, the stronger the turbulence, the stronger the turbulent dissipation, and the smaller the turbulent vortex scale, the more conducive it is to forcing fine particles to break through the fluid streamline restrictions and collide with bubbles, and the higher the probability of fine particle mineralization; but if the turbulence is too strong, the probability of coarse particle adhesion is greatly reduced, and the probability of desorption is greatly increased, resulting in a lower probability of mineralization. For weakly hydrophobic particles, a relatively gentle flow field environment is more conducive to strengthening their mineralization process. In addition, the fluid scale also has a significant impact on the separation process. A gentle fluid environment produces large-scale vortices, which is conducive to the stable floating recovery of mineralized bubbles. Due to the different turbulence requirements of particles with different physical properties for the flotation process, and the different turbulent field characteristics that need to be adapted to the mineralization process and the separation process, it is currently difficult to achieve efficient mineralization-separation and recovery of mineral particles of all physical properties in the same flotation process.

[0006] Therefore, it is very necessary to provide a flotation device that can separate the mineralization process from the traditional flotation process to further strengthen it, and has a reasonable fluid scale distribution, so as to achieve a reasonable distribution of turbulent energy in the flotation process to enhance the flotation separation and recovery of particles with different physical properties. Summary of the Invention

[0007] In order to solve the above technical problems, one of the objectives of the present invention is to provide an eddy current mineralization-static separation flotation device.

[0008] The present invention adopts the following technical solutions:

[0009] A vortex mineralization-static separation flotation device, comprising a static separator provided with a separation chamber and a vortex mineralizer provided with a mineralization cylinder, wherein the separation chamber is provided with a top-down raw ore processing pipeline and a bottom-up intermediate ore processing pipeline, which are intertwined with each other, and the mineralization cylinder is provided with a bottom-up vortex mineralization pipeline;

[0010] The outlet of the raw ore processing pipeline is connected to the inlet of the eddy current mineralization pipeline, and the outlet of the eddy current mineralization pipeline is connected to the inlet of the middling ore processing pipeline; the raw ore slurry enters the separation chamber from the inlet of the raw ore processing pipeline and moves downward along the raw ore processing pipeline. The obtained middling ore slurry enters the eddy current mineralization pipeline for enhanced mineralization treatment. The middling ore slurry after enhanced mineralization treatment enters the middling ore processing pipeline from the inlet of the middling ore processing pipeline for flotation separation. Finally, the concentrate is collected at the top of the separation chamber, and the flotation tailings are discharged from the tailings discharge pipe arranged at the bottom of the separation chamber.

[0011] Preferably, in the vortex mineralizer, the inlet of the vortex mineralization pipeline is connected to an air conduit, and the air conduit is used to inject air into the medium ore slurry entering the mineralization cylinder, and the air is dispersed into bubbles and mineralized with the medium ore particles.

[0012] Preferably, the inlet of the eddy current mineralization pipeline is arranged on the bottom side wall of the mineralization cylinder, and at least two inlet pipelines are arranged opposite to each other so that the middling ore enters the mineralization cylinder in the form of impinging flow.

[0013] Preferably, the inlet of the vortex mineralization pipeline includes a slurry distribution trough arranged around the top side wall of the mineralization cylinder, the slurry distribution trough is connected to the vertically arranged slurry distribution pipe, the number of slurry distribution pipes matches the number of the inlet pipelines, and the intermediate ore is transported to the inlet of the vortex mineralization pipeline through the slurry distribution pipe to enhance the collision.

[0014] Preferably, a lined jet pipe is provided at the connection end between the slurry distribution pipe and the slurry distribution trough, and the slurry distribution trough feeds the slurry into the slurry distribution pipe through the lined jet pipe. The air duct is connected to the side of the slurry distribution pipe close to the lined jet pipe, and the lined jet pipe is used to convert the air from the air duct into bubbles and mix with the slurry.

[0015] Preferably, a stirring device is further provided inside the mineralization cylinder, and the stirring device includes a mineralization impeller for generating a vortex, and the mineralization impeller is provided above the inlet of the vortex mineralization pipeline.

[0016] Preferably, the inlet of the raw ore processing pipeline is arranged above the separation chamber, and the inlet is connected to the feed pipe, the discharge end of the feed pipe extends into the interior of the separation chamber and bends toward the bottom of the separation chamber; the discharge end of the feed pipe is closed, and a through hole is opened on the pipe wall for the slurry to flow out.

[0017] Preferably, the inlet of the middling ore processing pipeline is arranged on the bottom side wall of the separation chamber, and a swirl cone is arranged inside the separation chamber. The swirl cone has a slope arranged opposite to the inlet of the middling ore processing pipeline. The middling ore slurry flows into the separation chamber from the inlet of the middling ore processing pipeline, impacts the slope of the swirl cone to form a swirl.

[0018] Preferably, a cyclone tube is provided at the inlet of the middling processing pipeline, and the cyclone tube is arranged at a certain deflection angle toward the cyclone cone to strengthen the cyclone.

[0019] Preferably, the inlet of the middling ore processing pipeline is also connected to a middling ore circulation feed trough arranged around the separation chamber, and the middling ore circulation feed trough is arranged close to and below the inlet of the raw ore processing pipeline. The middling ore circulation feed trough is connected to several middling ore distribution pipes, and the middling ore slurry is transported to the inlet of the middling ore processing pipeline through the middling ore distribution pipes, forming the starting point of the middling ore processing pipeline.

[0020] Preferably, the outlet of each of the middling ore distribution pipes is connected to the swirl pipe, and a plurality of swirl pipes are arranged at the same deflection angle toward the swirl cone to strengthen the swirl.

[0021] Preferably, a horizontally arranged sieve plate is provided inside the separation chamber, the size of the sieve plate is adapted to the inner diameter of the separation chamber, and through circular holes for the slurry to flow are evenly provided on the sieve plate.

[0022] Preferably, at least three sieve plates divide the separation chamber into mutually interconnected partitions, wherein the first sieve plate is arranged above the inlet of the raw ore processing pipeline, the second sieve plate is arranged below the inlet of the raw ore processing pipeline, and the third sieve plate is arranged above the inlet of the intermediate ore processing pipeline; the main static separation area of ​​the separation chamber is formed between the second sieve plate and the third sieve plate.

[0023] Preferably, the cyclone cone is a conical cylinder that passes through from top to bottom. The size of the bottom of the cyclone cone is adapted to the inner diameter of the separation chamber. The outlets of the tailings discharge pipe and the raw ore processing pipeline are both arranged below the bottom of the cyclone cone. After flotation, the tailings pass through the conical cylinder into the tailings discharge pipe, and the middlings pass through the conical cylinder into the outlet of the raw ore processing pipeline.

[0024] Preferably, the bottom of the separation chamber is sloped and inclined toward the tailings discharge pipe.

[0025] Preferably, a middling inverted cone is provided at the bottom of the separation chamber, and the middling inverted cone is a cone with its opening facing the bottom of the conical cylinder. The outlet of the raw ore processing pipeline, i.e., the feed end of the middling discharge pipe, is provided on the side wall of the middling inverted cone. The middling obtained by the raw ore processing pipeline enters the middling inverted cone from the conical cylinder, and is then output to the inlet of the eddy current mineralization pipeline by the middling discharge pipe.

[0026] Preferably, a blocking cover is provided at the opening of the mid-ore inverted cone, and the blocking cover is gap-connected with the upper edge of the mid-ore inverted cone, so that the mid-ore can enter the interior of the mid-ore inverted cone.

[0027] Preferably, two horizontal annular plates are provided inside the mineralizer, the edges of the annular plates are tightly connected to the inner wall of the mineralization cylinder, and the center hole of the annular plates is used for the flow of slurry; the first annular plate is provided between the inlet of the vortex mineralization pipeline and the mineralization impeller, and forms a collision flow mineralization chamber for the middle ore with the bottom of the mineralization cylinder; the second annular plate is provided below the outlet of the vortex mineralization pipeline, and forms a discharge chamber for the middle ore slurry with the top of the mineralization cylinder.

[0028] Preferably, the stirring device also includes a dispersion circulation impeller, which is arranged below the second circular plate. A central circular plate is also arranged between the dispersion circulation impeller and the mineralization impeller. A dispersion circulation mineralization chamber is formed between the central circular plate and the second circular plate, and a vortex forced mineralization chamber is formed between the central circular plate and the first circular plate.

[0029] Preferably, the mineralization impeller is a semi-open impeller, and the dispersion circulation impeller is an open impeller; the blades of the semi-open impeller are arranged vertically, so that the fluid moves in a horizontal plane after being stirred, and the open impeller is an axial downward pressure flow impeller, that is, the blades are arranged at an angle, and stirring provides axial kinetic energy for the fluid.

[0030] Preferably, the center hole diameter of the first annular plate is smaller than or equal to the inlet diameter of the mineralizing impeller, and the center hole diameters of the central annular plate and the second annular plate are larger than the blade diameters of the mineralizing impeller and the dispersion circulation impeller.

[0031] Preferably, baffles are provided on the top surface of the first circular plate and the bottom surface of the second circular plate, and several of the baffles are radially arranged around the central hole of the circular plate, with one long side of the baffle fitting against the inner wall of the mineralization cylinder, and the width of the baffle is shorter than the ring width of the circular plate.

[0032] Preferably, the baffle provided on the top surface of the first annular plate extends upward to exceed the top surface of the mineralization impeller, and the baffle provided on the bottom surface of the second annular plate extends downward to exceed the bottom surface of the dispersion circulation impeller.

[0033] Preferably, lining plates are provided on the bottom and top surfaces of the central annular plate, and the lining plates are arranged radially around the central hole of the central annular plate. The long side of one side of the lining plate fits the inner wall of the mineralization cylinder, and the width of the lining plate is shorter than the ring width of the central annular plate.

[0034] Preferably, the top of the mineralization cylinder is sealed by a sealing cover plate, and a ore drawing pipe is provided at the bottom of the mineralization cylinder for discharging residual ore pulp.

[0035] Preferably, the eddy current mineralizer is further connected to a power device, and the power device is electrically connected to the stirring device.

[0036] Preferably, the power device is a drive motor, and the drive motor is arranged on the sealing cover plate at the top of the mineralization cylinder.

[0037] Preferably, the top of the separation chamber is open and is set as a foam concentrate overflow port, and the overflowing concentrate is collected by a concentrate collecting device; the concentrate collecting device includes a collecting trough body with an inner diameter larger than the outer diameter of the overflow port, and a hole matching the size of the overflow port is provided on the bottom plate of the collecting trough body, so that the concentrate collecting device is sleeved and fixed on the outside of the overflow port; a concentrate discharge port for discharging the concentrate is also provided on the bottom plate.

[0038] Preferably, the bottom plate is tilted toward the concentrate discharge port.

[0039] Preferably, the concentrate collection device also includes a flushing system, which includes a flushing water ring and a water inlet pipe connected to the flushing water ring, and a water valve arranged on the flushing water ring; the flushing water ring is arranged in a circle along the inner wall of the column, and a flushing water outlet is opened on the flushing water ring, and several flushing water outlets are facing the bottom plate, and the output water is used to flush the flotation concentrate to promote drainage.

[0040] Preferably, a circulation pump is provided between the outlet of the raw ore processing pipeline and the inlet of the vortex mineralization pipeline to help the middling ore enter the vortex mineralization pipeline.

[0041] A second object of the present invention is to provide a flotation method of the above-mentioned eddy current mineralization-static separation flotation device, the method comprising the following steps:

[0042] S1. The tailings discharge pipe at the bottom of the separation chamber is closed, and the raw ore slurry enters the separation chamber. The raw ore slurry in the separation chamber is discharged through the outlet of the raw ore processing pipeline and fed into the mineralization cylinder from the inlet of the vortex mineralization pipeline. After the mineralization cylinder is filled with raw ore slurry, it is discharged from the outlet of the vortex mineralization pipeline and re-enters the separation chamber from the inlet of the middling processing pipeline;

[0043] S2. After the ore slurry in the separation chamber reaches the set liquid level, the air duct, stirring device, and tailings discharge pipe are opened. Air enters the mineralization cylinder and forms tiny bubbles that collide with mineral particles to form a gas-containing medium ore slurry;

[0044] S3. The gas-containing middling slurry enters the separation chamber through the inlet of the middling processing pipeline. The tiny bubbles are released and collide with the mineral particles in the separation chamber to form minerals. The low-density mineralized bubbles move toward the center of the separation chamber and float upward, while the high-density unmineralized particles move toward the inner wall of the separation chamber and descend. The floating mineralized bubbles collide with the raw ore slurry entering the separation chamber in a countercurrent flow to form minerals.

[0045] S4. The minerals not mineralized with the microbubbles descend, and the low-density unmineralized minerals in the middle region of the separation chamber are discharged as intermediate ore through the outlet of the raw ore processing pipeline. The high-density unmineralized minerals in the surrounding region of the separation chamber form tailings and are discharged through the tailings discharge pipe. S1-S3 are repeated, and the mineralized bubbles continue to form a stable foam layer at the top of the separation chamber, which overflows and is collected.

[0046] S5. After the flotation process is completed, stop feeding into the inlet of the raw ore processing pipeline, close the tailings discharge pipe, turn off the drive motor, open the discharge pipe to discharge the residual ore pulp in the separation chamber and the mineralization cylinder, and when the liquid level in the mineralization cylinder is lower than the air duct inlet, close the air duct. After the residual ore pulp in the separation chamber is completely discharged, turn off the circulation pump. After all the discharge is completed, close the discharge pipe.

[0047] Preferably, the inlet of the middling ore processing pipeline is arranged on the bottom side wall of the separation chamber, and a swirl cone is arranged inside the separation chamber. The swirl cone has a slope arranged opposite to the inlet of the middling ore processing pipeline. The middling ore slurry enters the separation chamber from the inlet of the middling ore processing pipeline and impacts the slope of the swirl cone to form a swirl. The swirl strengthens the collision between the mineral particles and the bubbles and promotes the low-density mineralized bubbles to have a floating tendency.

[0048] Preferably, the inlet of the eddy current mineralization pipeline is arranged on the bottom side wall of the mineralization cylinder, and at least two inlet pipelines are arranged relative to each other so that the intermediate ore enters the mineralization cylinder in the form of a collision flow, thereby strengthening the collision and adhesion of fine-grained minerals and bubbles through the collision flow, and avoiding the accumulation of minerals in the mineralization cylinder.

[0049] Preferably, the foam layer is collected by a concentrate collecting device arranged at the overflow port at the top of the separation chamber; the concentrate collecting device includes a bottom plate arranged on the outside of the overflow port at the top of the separation chamber, the bottom plate is arranged at an angle, and a concentrate discharge port for discharging mineralized foam is opened at the lowest end of the bottom plate; a water outlet is arranged above the bottom plate, and water discharged from the water outlet is used to flush the mineralized foam to promote discharge.

[0050] The beneficial effects of the present invention are:

[0051] 1) Flotation separation of minerals of varying particle sizes is achieved by interconnecting separate static separators and vortex mineralizers. After slurry adjustment, the flotation ore pulp fills the static separator and vortex mineralizer. It then flows countercurrently downward along the ore processing pipeline, passing through the static countercurrent mineralization zone formed by multiple sieve plates. Floating coarse particles undergo countercurrent mineralization with bubbles, forming mineralized bubbles that float up for recovery. Particles that have not collided with or adhered to the bubble surfaces continue to move downward with the fluid, passing through the vortex mineralization zone at the vortex cone. This increases the turbulence intensity and dissipation of the slurry, intensifying the collision and adhesion of medium-sized particles with bubbles. Fine particles that have not yet collided with or adhered to the bubble surfaces continue to move downward, passing through the medium ore discharge pipe and transported to the vortex mineralizer. Within the vortex mineralizer, intense turbulence is generated by the collision of the fluids and the strong stirring of the impeller. This further enhances turbulent dissipation and induces the formation of small-scale turbulent micro-vortices, forcing fine mineral particles to break through the fluid streamlines and collide and adhere with bubbles, achieving mineralization of the fine particles. In the present invention, mineral particles and bubbles undergo countercurrent mineralization, cyclonic mineralization and eddy mineralization in sequence along the flow direction in the static separator and eddy mineralizer device. The corresponding turbulent dissipation steps are enhanced and the turbulent eddy scale steps are reduced, thereby adapting to the mineralization flotation of mineral particles of different particle sizes. The efficient flotation recovery of mineral particles of various particle sizes is achieved through the step-by-step adaptation of turbulent energy.

[0052] 2) A swirl cone is installed within the separation chamber. This, on the one hand, encourages the circulating middlings to form a swirl centrifugal force field within the swirl cone region, creating a swirl mineralization zone with a turbulence intensity between the weakly turbulent countercurrent mineralization zone and the strongly turbulent vortex mineralization zone, thereby strengthening the collision and adhesion between medium-sized particles and bubbles. Furthermore, under the action of the swirl centrifugal force field, low-density mineralized bubbles move toward the center of the static separator, facilitating the separation of mineralized bubbles from unmineralized particles and enhancing the separation process. Furthermore, below the swirl cone, under the action of the swirl centrifugal force field, relatively low-density middling particles move toward the center of the static separator and sink to the middling inverted cone, where they are transported to the vortex mineralizer for forced mineralization and recovery. Meanwhile, relatively high-density tailings particles move toward the wall of the static separator and are collected by the tailings discharge pipe to form tailings, achieving a reasonable separation of middlings from tailings.

[0053] 3) Multiple layers of sieve plates are installed in the static separator to effectively isolate the influence of the slurry feeding and slurry swirl motion in the swirl area on the flow field of the countercurrent mineralization zone, creating a relatively static countercurrent mineralization zone. This not only provides a suitable flow field environment for the countercurrent mineralization of coarse particles and bubbles, but also facilitates the smooth floating and separation of mineralized bubbles.

[0054] 4) The mineralization cylinder is equipped with three layers of annular plates, divided into four chambers: from low to high, the impinging flow mineralization chamber, the vortex forced mineralization chamber, the dispersed circulation mineralization chamber, and the discharge chamber. The vortex forced mineralization chamber generates strong turbulence through the high-speed rotation of the mineralizing impeller, inducing small-scale turbulent micro-vortices. This not only enhances bubble dispersion and microbubble generation, but also helps force fine mineral particles to break through the fluid streamlines and enhance their mineralization with the bubbles. The dispersed circulation mineralization chamber, on the other hand, generates axial downward pressure through the dispersed circulation impeller installed in this chamber. This promotes the downward circulation of the slurry, increases the residence time of mineral particles in the cylinder, and increases the frequency of collisions between mineral particles and bubbles.

[0055] 5) In the vortex forced mineralization chamber, the inlet pipeline generates a collision flow at the bottom of the vortex mineralizer. On the one hand, it enhances turbulent dissipation, induces small-scale vortices, and strengthens the collision and adhesion of fine-grained minerals and bubbles; on the other hand, it prevents the accumulation of medium-sized ore slurry at the bottom of the vortex mineralizer, which affects the working effect.

[0056] 6) The vortex mineralizer is a confined space with a closed top. During operation, a high-pressure solution environment is formed inside the vortex mineralizer, which further strengthens energy concentration and enhances turbulent motion. In addition, the high-pressure solution environment enhances the solubility of air, which is conducive to the generation of micro-nano bubbles, strengthens air dispersion and interface nano-bubble bridging, and provides suitable bubble carriers and interface mineralization conditions for the flotation of fine minerals. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic structural diagram of the device of the present invention;

[0058] Figure 2 is a schematic structural diagram of a mineralized impeller;

[0059] Figure 3 is a schematic structural diagram of a dispersion circulation impeller;

[0060] FIG4 is a schematic structural diagram of the sieve plate.

[0061] The meanings of the symbols in the figure are as follows:

[0062] 10-circulation pump 20-separation chamber 21-feeding pipe 211-through hole

[0063] 22-tailings discharge pipe 221-slant plate 23-swirl cone 231-swirl pipe

[0064] 24-sieve plate 241-through circular hole 24a-first sieve plate 24b-second sieve plate 24c-third sieve plate

[0065] 25-Middle Mine Inverted Cone 251-Block Cover

[0066] 30-mineralization cylinder 31-air duct 311-gas distribution pipe

[0067] 32-Stirring device 321-Mineralization impeller 322-Dispersion circulation impeller

[0068] 33-annular plate 331-center hole 33a-first annular plate 33b-second annular plate 33c-center annular plate

[0069] 341- baffle 342- liner 35- sealing cover 36- ore pipe 37- drive motor

[0070] 40- slurry distribution trough 41- slurry distribution pipe

[0071] 50-Mid-stage ore circulation feed trough 51-Mid-stage ore distribution pipe

[0072] 60- concentrate collection device 61- collection tank 62- bottom plate 621- concentrate discharge port

[0073] 70-Flushing system 71-Flushing water ring 72-Water inlet pipe

[0074] A1-Inlet of the raw ore processing pipeline A2-Outlet of the raw ore processing pipeline

[0075] B1-Inlet of eddy current mineralization pipeline B2-Outlet of eddy current mineralization pipeline

[0076] C1-Inlet of the mid-ore processing pipeline DETAILED DESCRIPTION

[0077] The technical solution of the present invention is described in more detail below with reference to the embodiments and drawings: Example

[0078] As shown in Figures 1-3, a vortex mineralization-static separation flotation device includes a static separator for flotation separation and a vortex mineralizer for mineralization. The static separator has a separation chamber 20, in which a top-down raw ore processing pipeline and a bottom-up intermediate ore processing pipeline are arranged. The vortex mineralizer includes a mineralization cylinder 30, and the mineralization cylinder 30 includes a bottom-up vortex mineralization pipeline.

[0079] The separation chamber 20 and the mineralization cylinder 30 are both cylindrical spaces. Based on the flow direction of each pipeline, the top of the separation chamber 20 is open and configured as a concentrate foam overflow port to facilitate concentrate collection. The bottom of the separation chamber 20 is equipped with a tailings discharge pipe 22 and an outlet A2 for the raw ore processing pipeline. The inlet A1 for the raw ore processing pipeline is located above the side wall of the separation chamber, and the inlet C1 for the intermediate ore processing pipeline is located below the side wall. The mineralization cylinder 30 is closed at both ends. The inlet B1 of the eddy current mineralization pipeline is located below the side wall of the mineralization cylinder 30, and the outlet B2 of the eddy current mineralization pipeline is located above the side wall of the mineralization cylinder 30. A ore discharge pipe 36 is also located at the bottom of the mineralization cylinder to discharge the residual slurry in the mineralization cylinder 30 after completion.

[0080] The outlet A2 of the raw ore processing pipeline is connected to the inlet B1 of the vortex mineralization pipeline through a circulation pump 10. The outlet B2 of the vortex mineralization pipeline is connected to the inlet C1 of the middling ore processing pipeline, so that the middling ore slurry can circulate in the static separator and the vortex mineralizer.

[0081] The raw ore slurry enters the raw ore processing pipeline from the inlet A1 of the raw ore processing pipeline, fills the separation chamber 20, and is discharged from the outlet A2 of the raw ore processing pipeline, and is transported by the circulating pump 10 to the inlet B1 of the vortex mineralization pipeline and enters the mineralization cylinder 30. The inlet B1 of the vortex mineralization pipeline is connected to the air duct 31 for inflating the ore slurry. The air is processed and fully dispersed in the vortex mineralization pipeline, forming tiny bubbles in the ore slurry and colliding with the mineral particles to mineralize. The ore slurry is aerated and mineralized to form a gas-containing medium ore slurry. The gas-containing medium ore slurry is discharged from the outlet B2 of the vortex mineralization pipeline to the inlet C1 of the medium ore processing pipeline, and enters the separation chamber 20 for separation. During a cyclic processing process, the raw ore slurry continuously enters the separation chamber 20 from the inlet A1 of the raw ore processing pipeline, collides with the tiny bubbles in the gas-containing middling slurry to be mineralized, and the low-density mineralized bubbles move toward the center of the separation chamber 20 and float to the top of the separation chamber 20 to form foam concentrate. The unmineralized particles descend in the separation chamber 20 to form middlings or tailings. The formed middling slurry is mineralized in the separation chamber 20 and the mineralization cylinder 30 for multiple cycles. The concentrate adheres to the bubbles and floats to form concentrate foam that stably appears at the top of the separation chamber 20. The concentrate foam is collected and the flotation tailings are discharged from the tailings discharge pipe 22.

[0082] During the above process, the circulating middling slurry undergoes forced mineralization within the mineralization cylinder 30. The inlet B1 of the vortex mineralization pipeline is connected to an air duct 31, which injects air into the slurry to form an aerated middling slurry. A stirring device 32 is also provided within the mineralization cylinder 30. This stirring device 32 includes a stirring impeller 321. This semi-open radial impeller, with vertically positioned blades, is positioned above the inlet of the vortex mineralization pipeline. This impeller 321 stirs the air entering the middling slurry, forming tiny bubbles. This induction of small-scale eddies enhances the mineralization of the middling particles and bubbles.

[0083] Furthermore, the inlet A1 of the raw ore processing pipeline is connected to the feed pipe 21, the discharge end of the feed pipe 21 extends into the interior of the separation chamber 20, and bends along the axis toward the bottom of the separation chamber 20 at the axis of the separation chamber 20; the discharge end of the feed pipe 21 is closed, and a through hole 211 is opened on the pipe wall for the slurry to flow out.

[0084] At least two inlet pipes B1 are provided on the bottom sidewall of the mineralization cylinder 30, with the inlet pipes facing each other and oriented toward the central axis of the mineralization cylinder 30. This allows the slurry to enter the mineralization cylinder 30 in the form of impinging flows. Impinging flows enhance turbulent dissipation, induce small-scale vortices, and strengthen the collision and adhesion of fine-particle minerals with bubbles. Furthermore, they prevent the accumulation of medium-sized slurry at the bottom of the vortex mineralizer, which could affect its performance.

[0085] After forced mineralization, the middling ore slurry enters the separation chamber 20. At the inlet C1 of the middling ore processing pipeline, a swirl cone 23 is set inside the separation chamber 20. The swirl cone 23 has a slope arranged opposite to the inlet C1 of the middling ore processing pipeline. The middling ore slurry enters the separation chamber 20 from the inlet C1 of the middling ore processing pipeline and impacts the slope of the swirl cone 23 to form a swirl.

[0086] To enhance the swirl, a swirl tube 231 is also installed at the inlet C1 of the middling processing line. This swirl tube 231 is positioned at a predetermined angle toward the swirl cone 23. At least two swirl tubes 231 are positioned opposite each other on the sidewalls of the separation chamber 20. Because these multiple swirl tubes 231 have the same deflection angle, their impact on the swirl cone 23 significantly enhances the swirl. During this process, the middling slurry forms a swirl centrifugal force field in the area of ​​the swirl cone 23, which strengthens the collision and adhesion of mineral particles and bubbles. Simultaneously, under the action of this swirl centrifugal force field, low-density mineralized bubbles move toward the center of the static separator, facilitating the separation of mineralized bubbles from unmineralized particles and enhancing the separation process.

[0087] In order to ensure the flow of slurry, the cyclone cone 23 is set as a conical cylinder that passes through from top to bottom. The size of the bottom of the cyclone cone 23 is adapted to the inner diameter of the separation chamber 20, so that the tailings after flotation pass through the conical cylinder into the tailings discharge pipe 22, and the middlings pass through the conical cylinder into the outlet A2 of the raw ore processing pipeline.

[0088] Furthermore, a middling inverted cone 25 is disposed below the swirl cone 23. The middling inverted cone 25 is generally conical in shape, with its opening facing the bottom of the conical cylinder. The feed end of the raw ore processing pipeline outlet A2 is disposed on the sidewall of the middling inverted cone 25. Under the action of the swirl centrifugal force field, relatively low-density middling particles move toward the center of the static separator and sink into the middling inverted cone 25. They are then transported through the raw ore processing pipeline outlet A2 to the eddy current mineralizer for forced recovery, while relatively high-density tailings particles move toward the walls of the static separator and are collected by the tailings discharge pipe 22 to form tailings, achieving a reasonable separation of middlings from tailings.

[0089] A blocking cover 251 may be further provided on the opening of the medium ore inverted cone 25 . The blocking cover 251 is gap-connected to the upper edge of the medium ore inverted cone 25 , so that medium ore particles can enter the interior of the medium ore inverted cone 25 .

[0090] In order to facilitate the discharge of tailings, the bottom end of the separation chamber 20 is inclined toward the tailings discharge pipe 22. In a specific scheme, the inclined part can be formed by an inclined plate 221 arranged at the bottom end of the separation chamber 20, and the base of the middle ore inverted cone 25 passes through the inclined plate 221 or forms a stable connection with the inclined plate 221.

[0091] The top of the mineralization cylinder 30 is sealed by a sealing cover plate 35. The eddy current mineralizer is also connected to a power device, which is electrically connected to the stirring device 32. The power device is a drive motor 37, which is arranged on the sealing cover plate 35 at the top of the mineralization cylinder 30.

[0092] In this embodiment, the stirring device 32 is a rod with a stirring shaft disposed along the axis of the mineralization cylinder 30. A mineralizing impeller 321 is disposed at one end of the stirring shaft, the other end of which is connected to a drive motor 37. Rotation of the stirring shaft drives the mineralizing impeller 321. Below the outlet B2 of the vortex mineralization pipeline, a dispersing circulation impeller 322 is also disposed on the stirring shaft of the stirring device 32. This dispersing circulation impeller 322 is an open axial downward pressure impeller, meaning its blades are tilted to provide axial kinetic energy to the fluid after stirring.

[0093] The concentrate overflowing from the overflow port at the top of the separation chamber 20 is collected by a concentrate collecting device 60, which includes a collecting trough body 61 whose inner diameter is larger than the outer diameter of the overflow port. A hole matching the size of the overflow port is provided on the bottom plate 62 of the collecting trough body 61, so that the concentrate collecting device 60 is sleeved and fixed on the outside of the overflow port; a concentrate discharge port 621 for discharging the concentrate is also provided on the bottom plate 62, and the bottom plate 62 is inclined toward the concentrate discharge port 621, and the overflowing foam concentrate flows into the collecting trough body 61 and flows along the inclined bottom plate 62 to the concentrate discharge slurry port 621.

[0094] The concentrate collection device 60 is also equipped with a flushing system 70, which includes a flushing water ring 71, a water inlet pipe 72 connected to the flushing water ring 71, and a water valve installed on the flushing water ring 71. The flushing water ring 71 is arranged in a circle along the inner wall of the column. The flushing water ring 71 has flushing water outlets, and several flushing water outlets face the bottom plate 62. The flushing water flow rate at the outlet is adjusted by the water valve. The water is used to flush the foam concentrate on the bottom plate 621 to promote drainage. Example

[0095] On the basis of Example 1, a horizontally arranged sieve plate 24 is further provided inside the separation chamber 20, as shown in FIG4 . The size of the sieve plate 24 is adapted to the inner diameter of the separation chamber 20, and the sieve plate 24 is evenly provided with through circular holes 241 for the flow of slurry.

[0096] In this embodiment, three sieve plates 24 are installed to divide separation chamber 20 into interconnected partitions. The first sieve plate 24a is located above inlet A1 of the raw ore processing pipeline, the second sieve plate 24b is located below inlet A1 of the raw ore processing pipeline, and the third sieve plate 24c is located above inlet C1 of the middling ore processing pipeline. The area between the second and third sieve plates 24b, 24c, forms the primary static separation zone of separation chamber 20. In this zone, countercurrent collisions between mineral particles in the raw ore pipeline and tiny bubbles in the middling ore pipeline lead to mineralization.

[0097] By setting up a sieve plate to isolate the influence of the slurry cyclonic motion in the area where the cyclone cone 23 in the separation chamber 20 is located on the flow field of the countercurrent mineralization zone, a relatively static countercurrent mineralization zone of the raw ore pipeline is created. On the one hand, it provides a suitable flow field environment for the countercurrent mineralization of coarse particles and bubbles, and on the other hand, it is conducive to the smooth floating and separation of mineralized bubbles.

[0098] Three horizontal annular plates 33 are provided inside the mineralizer. The edges of the annular plates 33 are tightly connected to the inner wall of the mineralization cylinder 30. The central hole 331 of the annular plates 33 is used for the flow of slurry.

[0099] The first annular plate 33a is arranged between the inlet B1 of the vortex mineralization pipeline and the mineralization impeller 321, and forms a collision flow mineralization chamber for the intermediate ore with the bottom of the mineralization cylinder 30; the second annular plate 33b is arranged below the outlet B2 of the vortex mineralization pipeline, and forms a discharge chamber for the intermediate ore slurry with the top of the mineralization cylinder 30; a central annular plate 33c is further arranged between the dispersion circulation impeller 322 and the mineralization impeller 321, and a dispersion circulation mineralization chamber is formed between the central annular plate 33c and the second annular plate 33b, and a vortex forced mineralization chamber is formed between the central annular plate 33c and the first annular plate 33a.

[0100] Through partitioning, the middling ore slurry and bubbles undergo collision flow mineralization, eddy mineralization and slurry circulation in the entire device along the direction of the eddy mineralization pipeline, adapting to the different stages of the mineralization process of mineral particles and bubbles, and realizing efficient mineralization recovery of mineral particles through reasonable adaptation of turbulent energy.

[0101] Specifically, in the impinging flow mineralization chamber, an inlet pipeline is set at the inlet B1 of the vortex mineralization pipeline to allow the medium ore slurry to enter the mineralization cylinder 30 in the form of impinging flow. On the one hand, the impinging flow enhances turbulent dissipation, induces small-scale vortices, and strengthens the collision and adhesion of fine-grained minerals and bubbles; on the other hand, it prevents the medium ore slurry from accumulating at the bottom of the vortex mineralizer, affecting the working effect.

[0102] Because the top of the mineralization cylinder 30 is a closed, confined space, a high-pressure solution environment is easily formed within the eddy current mineralizer during operation, enhancing energy concentration and turbulent motion. Furthermore, the solubility of air in this high-pressure solution environment is enhanced, which facilitates the generation of micro-nano bubbles, strengthens air dispersion and interfacial nanobubble bridging, and provides suitable bubble carriers and interfacial mineralization conditions for the flotation of fine minerals.

[0103] The mineralizing impeller 321 is located in the vortex forced mineralization chamber. It is a semi-open radial impeller. Its high-speed rotation can generate strong turbulence, inducing small-scale turbulent micro-vortices, which can enhance bubble dispersion and generate microbubbles. It also helps force fine mineral particles to break through the fluid streamlines and enhance their mineralization with the bubbles. The dispersion circulation impeller 322 is located in the dispersion circulation mineralization chamber. It is an open axial downward pressure impeller. Its high-speed rotation generates axial downward pressure flow, which can promote the downward circulation of the slurry, increase the residence time of mineral particles in the cylinder, and increase the frequency of collisions between mineral particles and bubbles.

[0104] In this embodiment, further, the diameter of the center hole 331 of the first annular plate 33a is less than or equal to the inlet diameter of the mineralizing impeller 321, and the diameters of the center holes 331 of the central annular plate 33c and the second annular plate 33b are both larger than the inlet diameter of the mineralizing impeller 321 and the blade diameter of the dispersion circulation impeller 322.

[0105] Baffles 341 are further provided on the top surface of the first annular plate 33a and the bottom surface of the second annular plate 33b. Several of the baffles 341 are radially arranged around the central hole 331 of the annular plates 33. One long side of the baffles 341 abuts against the inner wall of the mineralization cylinder 30, and the width of the baffles 341 is shorter than the ring width of the annular plates 33. Lining plates 342 are further provided on the bottom and top surfaces of the central annular plate 33c. Several of the lining plates 342 are radially arranged around the central hole 331 of the central annular plate 33c. One long side of the lining plates 342 abuts against the inner wall of the mineralization cylinder 30, and the width of the lining plates 342 is shorter than the ring width of the central annular plate 33c.

[0106] On the one hand, the baffle 341 and the lining plate 342 can support the annular plate 33, and can also prevent the slurry from forming a vortex that adheres to the inner wall of the mineralization cylinder 30, thereby improving the mineralization effect; in order to further prevent the formation of a vortex, the baffle 341 provided on the top surface of the first annular plate 33a extends upward to a position beyond the top surface of the mineralization impeller 321, and the baffle 341 provided on the bottom surface of the second annular plate 33b extends downward to a position beyond the bottom surface of the dispersion circulation impeller 322.

[0107] In the present invention, there are no specific requirements for the number and shape of the baffles 341 and the lining plates 342, as long as they meet the usage requirements. Example

[0108] On the basis of Example 1 or Example 2, the inlet B1 of the vortex mineralization pipeline and the inlet C1 of the intermediate ore processing pipeline are further pressurized to increase the intensity of the impinging flow and the swirling flow.

[0109] As shown in FIG1 , the inlet of the vortex mineralization pipeline includes a slurry distribution trough 40 arranged around the mineralization cylinder 30. The slurry distribution trough 40 is arranged above the mineralization cylinder 30 and is connected to a number of slurry distribution pipes 41 that matches the number of the inlet pipelines. The slurry distribution pipes 41 transport the intermediate ore to the inlet B1 of the vortex mineralization pipeline to enhance the collision.

[0110] Furthermore, a lined jet pipe is provided at the connection end between the slurry distribution pipe 41 and the slurry distribution tank 40. The slurry distribution tank 40 feeds the slurry into the slurry distribution pipe 41 through the lined jet pipe. The air duct 31 is connected to the side of the slurry distribution pipe 41 close to the lined jet pipe. The lined jet pipe is used to break the air from the air duct into bubbles and mix with the slurry.

[0111] The air conduit 31 further includes an air distribution pipe 311 , which is connected to an external air pump to obtain air and evenly distribute the air to each air conduit 31 connected to the slurry distribution pipe 311 .

[0112] Furthermore, a one-way valve is installed on the air pipe 31 along the direction of air movement to prevent the slurry from entering the air conduit 31 and the air distribution pipe 311.

[0113] The inlet C1 of the middling processing pipeline is connected to a middling circulation feed trough 50, which surrounds the separation chamber 20 and is located below the inlet A1 of the raw ore processing pipeline. This middling circulation feed trough 50 is connected to middling distribution pipes 51, the number of which matches the inlet C1 of the middling processing pipeline. The middling distribution pipes 51 transport the middling slurry to the inlet C1 of the middling processing pipeline, forming the starting point of the middling processing pipeline and cooperating with the swirl cone 23 to enhance the swirl.

[0114] The slurry distribution trough 40 and the slurry distribution pipe 41, and the intermediate ore circulation feeding trough 50 and the intermediate ore distribution pipe 51 can be connected by conventional means, such as connecting flanges, threads, etc. The slurry distribution pipe 41 and the intermediate ore distribution pipe 51 can be connected to the original pipeline inlet or replace the original pipeline inlet. The pipeline inlet can also extend a certain distance into the cylinder to enhance collision or vortex. Example

[0115] The flotation separation method of the eddy current mineralization-static separation flotation device provided by the present invention comprises the following steps:

[0116] S1. Close the tailings discharge pipe 22 at the bottom of the separation chamber 20. The adjusted raw ore slurry enters the separation chamber 20 through the raw ore processing pipeline inlet A1. The raw ore slurry in the separation chamber 20 is discharged through the raw ore processing pipeline outlet A2. The raw ore slurry is then fed into the mineralization cylinder 30 through the eddy current mineralization pipeline inlet B1 via the circulation pump 10. After the mineralization cylinder 30 is filled with raw ore slurry, it is discharged through the eddy current mineralization pipeline outlet B2 and re-enters the separation chamber 20 through the middling ore processing pipeline inlet C1.

[0117] S2. After the raw ore slurry in the separation chamber 20 reaches the set liquid level, the circulation pump 10, the air duct 31, the stirring device 32 and the tailings discharge pipe 22 are turned on. Air enters the mineralization cylinder 30 and forms tiny bubbles that collide with the mineral particles to form a gas-containing ore slurry;

[0118] S3. Gas-containing middling slurry enters the separation chamber 20 through the inlet C1 of the middling processing pipeline. The slurry is fed tangentially into the separation chamber 20 at the swirl cone 23, forming a swirl. Under the influence of the swirl, tiny bubbles are released. These bubbles collide with the mineral particles in the separation chamber 20, causing mineralization. Low-density mineralized bubbles move toward the center of the separation chamber 20 and float upward, while high-density unmineralized particles move toward the inner wall of the separation chamber 20 and descend. The rising mineralized bubbles collide with the raw ore slurry entering the separation chamber 20 in a countercurrent flow, causing mineralization.

[0119] S4. The minerals not mineralized with the microbubbles descend. The low-density unmineralized minerals in the middle region of the separation chamber 20 enter the intermediate ore inverted cone 25 and are discharged through outlet A2 of the raw ore processing pipeline. The high-density unmineralized minerals in the surrounding region of the separation chamber 20 form tailings and are discharged as intermediate ore through the tailings discharge pipe 22. Repeat S1-S3 until the mineralized bubbles continuously form a stable foam layer at the top of the separation chamber 20. The flushing system 70 is opened to collect the overflowing foam concentrate.

[0120] S5. After flotation is completed, stop feeding into the inlet A1 of the raw ore processing pipeline, close the tailings discharge pipe 22, turn off the drive motor 37, open the discharge pipe 36 to discharge the residual slurry in the separation chamber 20 and the mineralization cylinder 30, and when the liquid level in the mineralization cylinder 30 is lower than the inlet of the air duct 31, close the air duct 31. After the residual slurry in the separation chamber 20 is completely discharged, turn off the circulation pump 10. After all the discharge is completed, close the discharge pipe 36.

[0121] When a slurry distribution trough 40 is provided at the inlet of the eddy current mineralization pipeline and the inlet C1 of the intermediate ore processing pipeline is connected to the intermediate ore circulation feeding trough 50, the operation process remains unchanged. Only the circulation process of the slurry is increased by the distribution process of the slurry distribution trough 40 / intermediate ore circulation feeding trough 50, which will not be described in detail here.

[0122] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vortex mineralization-static separation flotation device, characterized in that: It comprises a static separator provided with a separation chamber (20) and an eddy current mineralizer provided with a mineralization cylinder (30), wherein the separation chamber (20) is provided with a top-down raw ore processing pipeline and a bottom-up intermediate ore processing pipeline which are intertwined with each other, and the mineralization cylinder (30) is provided with a bottom-up eddy current mineralization pipeline; The outlet (A2) of the raw ore processing pipeline is connected to the inlet (B1) of the vortex mineralization pipeline, and the outlet (B2) of the vortex mineralization pipeline is connected to the inlet (C1) of the medium ore processing pipeline; the raw ore slurry enters the separation chamber (20) from the inlet (A1) of the raw ore processing pipeline, moves downward along the raw ore processing pipeline, and the obtained medium ore slurry enters the vortex mineralization pipeline for enhanced mineralization treatment. The medium ore slurry after the enhanced mineralization treatment enters the medium ore processing pipeline from the inlet (C1) of the medium ore processing pipeline for flotation separation, and finally the concentrate is collected at the top of the separation chamber (20), and the flotation tailings are discharged from the tailings discharge pipe (22) arranged at the bottom of the separation chamber (20).

2. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: In the vortex mineralizer, the inlet (B1) of the vortex mineralization pipeline is connected to the air conduit (31), and the air conduit (31) is used to inject air into the medium ore slurry entering the mineralization cylinder (30), so as to achieve enhanced mineralization of the medium ore.

3. The eddy current mineralization-static separation flotation device according to claim 2, characterized in that: The inlet (B1) of the eddy current mineralization pipeline is arranged on the bottom side wall of the mineralization cylinder (30), and at least two inlet pipelines are arranged opposite to each other so that the intermediate ore enters the mineralization cylinder (30) in the form of a collision flow.

4. The eddy current mineralization-static separation flotation device according to claim 3, characterized in that: The inlet of the vortex mineralization pipeline comprises a slurry distribution trough (40) arranged around the top side wall of the mineralization cylinder (30), the slurry distribution trough (40) is connected to a vertically arranged slurry distribution pipe (41), the number of the slurry distribution pipes (41) matches the number of the inlet pipelines, and the medium ore is transported to the inlet (B1) of the vortex mineralization pipeline through the slurry distribution pipe (41) to enhance the collision.

5. The eddy current mineralization-static separation flotation device according to claim 4, characterized in that: An inner lining jet pipe is provided at the connection end between the slurry distribution pipe (41) and the slurry distribution trough (40), and the slurry distribution trough (40) feeds slurry into the slurry distribution pipe (41) through the inner lining jet pipe. The air conduit (31) is connected to the slurry distribution pipe on one side close to the inner lining jet pipe.

6. The eddy current mineralization-static separation flotation device according to claim 5, characterized in that: A stirring device (32) is also provided inside the mineralization cylinder (30), and the stirring device (32) comprises a mineralization impeller (321) for generating a vortex, and the mineralization impeller (321) is arranged above the inlet of the vortex mineralization pipeline.

7. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: The inlet (A1) of the raw ore processing pipeline is arranged above the separation chamber (20), and the inlet is connected to the feed pipe (21). The discharge end of the feed pipe (21) extends into the separation chamber (20) and bends toward the bottom of the separation chamber (20); the discharge end of the feed pipe (21) is closed, and a through hole (211) is provided on the pipe wall for the ore slurry to flow out.

8. The eddy current mineralization-static separation flotation device according to claim 7, characterized in that: The inlet (C1) of the medium ore processing pipeline is arranged on the bottom side wall of the separation chamber (20), and a swirl cone (23) is arranged inside the separation chamber (20). The swirl cone (23) has a slope surface arranged opposite to the inlet (C1) of the medium ore processing pipeline. The medium ore slurry flows into the separation chamber (20) from the inlet (C1) of the medium ore processing pipeline and impacts the slope surface of the swirl cone (23) to form a swirl.

9. The eddy current mineralization-static separation flotation device according to claim 8, characterized in that: A cyclone tube (231) is provided at the inlet (C1) of the middling processing pipeline, and the cyclone tube (231) is arranged at a certain deflection angle toward the cyclone cone (23) to strengthen the cyclone.

10. The eddy current mineralization-static separation flotation device according to claim 8, characterized in that: The inlet (C1) of the intermediate ore processing pipeline is also connected to a intermediate ore circulation feeding trough (50) arranged around the separation chamber (20). The intermediate ore circulation feeding trough (50) is arranged close to and below the inlet (A1) of the raw ore processing pipeline. The intermediate ore circulation feeding trough (50) is connected to a plurality of intermediate ore distribution pipes (51), and intermediate ore slurry is transported to the inlet (C1) of the intermediate ore processing pipeline through the intermediate ore distribution pipes (51), thereby forming the starting point of the intermediate ore processing pipeline.

11. The eddy current mineralization-static separation flotation device according to claim 9, characterized in that: The outlet of each of the intermediate ore distribution pipes (51) is connected to the cyclone pipe (231), and a plurality of cyclone pipes (231) are arranged at the same deflection angle toward the cyclone cone (23) to strengthen the cyclone.

12. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: A horizontally arranged sieve plate (24) is provided inside the separation chamber (20); the size of the sieve plate (24) is adapted to the inner diameter of the separation chamber (20); and through circular holes (241) for the flow of ore pulp are evenly provided on the sieve plate (24).

13. The eddy current mineralization-static separation flotation device according to claim 12, characterized in that: At least three sieve plates (24) divide the separation chamber (20) into mutually interpenetrating partitions, wherein the first sieve plate (24a) is arranged above the inlet (A1) of the raw ore processing pipeline, the second sieve plate (24b) is arranged below the inlet (A1) of the raw ore processing pipeline, and the third sieve plate (24c) is arranged above the inlet (C1) of the intermediate ore processing pipeline; and the main static separation area of ​​the separation chamber (20) is formed between the second sieve plate (24b) and the third sieve plate (24c).

14. The eddy current mineralization-static separation flotation device according to claim 8, characterized in that: The cyclone cone (23) is a conical cylinder that penetrates from top to bottom. The size of the bottom of the cyclone cone (23) is adapted to the inner diameter of the separation chamber (20). The tailings discharge pipe (22) and the outlet (A2) of the raw ore processing pipeline are both arranged below the bottom of the cyclone cone (23). After flotation, the tailings pass through the conical cylinder and enter the tailings discharge pipe (22), and the middlings pass through the conical cylinder and enter the outlet (A2) of the raw ore processing pipeline.

15. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: The bottom of the separation chamber (20) is in the shape of a slope that is inclined toward the tailings discharge pipe (22).

16. The eddy current mineralization-static separation flotation device according to claim 14, characterized in that: A middling inverted cone (25) is provided at the bottom of the separation chamber (20), and the middling inverted cone (25) is a cone with its opening facing the bottom of the conical cylinder. The outlet (A2) of the raw ore processing pipeline, i.e., the feed end of the middling discharge pipe, is provided on the side wall of the middling inverted cone (25). The middling obtained by the raw ore processing pipeline enters the middling inverted cone (25) from the conical cylinder, and is then output from the middling discharge pipe to the inlet (B1) of the eddy current mineralization pipeline.

17. The eddy current mineralization-static separation flotation device according to claim 16, characterized in that: The opening of the middle ore inverted cone (25) is provided with a blocking cover (251), and the blocking cover (251) is gap-connected to the upper edge of the middle ore inverted cone (25), so that the middle ore can enter the interior of the middle ore inverted cone (25).

18. The eddy current mineralization-static separation flotation device according to claim 6, characterized in that: Two horizontal annular plates (33) are arranged inside the mineralizer, the edges of the annular plates (33) are tightly connected to the inner wall of the mineralization cylinder (30), and the central hole (331) of the annular plates (33) is used for the flow of ore slurry; the first annular plate (33a) is arranged between the inlet (B1) of the vortex mineralization pipeline and the mineralization impeller (321), and forms a collision flow mineralization chamber for the middle ore with the bottom of the mineralization cylinder (30); the second annular plate (33b) is arranged below the outlet (B2) of the vortex mineralization pipeline, and forms a discharge chamber for the middle ore slurry with the top of the mineralization cylinder (30).

19. The eddy current mineralization-static separation flotation device according to claim 18, characterized in that: The stirring device (32) further comprises a dispersion circulation impeller (322), wherein the dispersion circulation impeller (322) is arranged below the second annular plate (33b), and a central annular plate (33c) is further arranged between the dispersion circulation impeller (322) and the mineralization impeller (321), wherein a dispersion circulation mineralization chamber is formed between the central annular plate (33c) and the second annular plate (33b), and a vortex forced mineralization chamber is formed between the central annular plate (33c) and the first annular plate (33a).

20. The eddy current mineralization-static separation flotation device according to claim 19, characterized in that: The mineralization impeller (321) is a semi-open impeller, and the dispersion circulation impeller (322) is an open impeller.

21. The eddy current mineralization-static separation flotation device according to claim 20, characterized in that: The diameter of the central hole (331) of the first annular plate (33a) is smaller than or equal to the inlet diameter of the mineralizing impeller (321), and the diameters of the central holes (331) of the central annular plate (33c) and the second annular plate (33b) are both larger than the blade diameters of the mineralizing impeller (321) and the blade diameters of the dispersion circulation impeller (322).

22. The eddy current mineralization-static separation flotation device according to claim 19, characterized in that: The top surface of the first annular plate (33a) and the bottom surface of the second annular plate (33b) are both provided with baffles (341), and a plurality of the baffles (341) are radially arranged around the central hole (331) of the annular plate (33), one long side of the baffle (341) is in contact with the inner wall of the mineralization cylinder (30), and the width of the baffle (341) is shorter than the ring width of the annular plate (33).

23. The eddy current mineralization-static separation flotation device according to claim 22, characterized in that: The baffle (341) disposed on the top surface of the first annular plate (33a) extends upward to a position beyond the top surface of the mineralizing impeller (321), and the baffle (341) disposed on the bottom surface of the second annular plate (33b) extends downward to a position beyond the bottom surface of the dispersion circulation impeller (322).

24. The eddy current mineralization-static separation flotation device according to claim 19, characterized in that: Lining plates (342) are provided on the bottom and top surfaces of the central annular plate (33c). The lining plates (342) are radially arranged around the central hole (331) of the central annular plate (33c). One long side of the lining plate (342) fits the inner wall of the mineralized cylinder (30). The width of the lining plate (342) is shorter than the ring width of the central annular plate (33c).

25. The eddy current mineralization-static separation flotation device according to claim 3, characterized in that: The top of the mineralization cylinder (30) is sealed by a sealing cover plate (35), and a ore discharge pipe (36) is provided at the bottom of the mineralization cylinder (30) for discharging residual ore slurry.

26. The eddy current mineralization-static separation flotation device according to claim 25, characterized in that: The eddy current mineralizer is also connected to a power device, and the power device is electrically connected to the stirring device (32).

27. The eddy current mineralization-static separation flotation device according to claim 26, characterized in that: The power device is a drive motor (37), and the drive motor (37) is arranged on a sealing cover plate (35) at the top end of the mineralization cylinder (30).

28. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: The top of the separation chamber (20) is open and is configured as a foam concentrate overflow port, and the overflowed concentrate is collected by a concentrate collecting device (60); the concentrate collecting device (60) comprises a collecting tank body (61) having an inner diameter larger than an outer diameter of the overflow port, and a hole matching the size of the overflow port is provided on a bottom plate (62) of the collecting tank body (61), so that the concentrate collecting device (60) is sleeved and fixed on the outside of the overflow port; the bottom plate (62) is also provided with a concentrate discharge port (621) for discharging the concentrate.

29. The eddy current mineralization-static separation flotation device according to claim 28, characterized in that: The bottom plate (62) is arranged to be inclined toward the concentrate discharge port (621).

30. The eddy current mineralization-static separation flotation device according to claim 28, characterized in that: The concentrate collecting device (60) further comprises a flushing system (70), the flushing system (70) comprising a flushing water ring (71), a water inlet pipe (72) connected to the flushing water ring (71), and a water valve arranged on the flushing water ring (71); the flushing water ring (71) is arranged in a circle along the inner wall of the column body, and flushing water outlets are provided on the flushing water ring (71), and a plurality of flushing water outlets are directly opposite to the bottom plate (62), and the output water is used to flush the flotation concentrate to promote drainage.

31. The eddy current mineralization-static separation flotation device according to claim 1, characterized in that: A circulation pump (10) is provided between the outlet (A2) of the raw ore processing pipeline and the inlet (B1) of the vortex mineralization pipeline to help the middling ore enter the vortex mineralization pipeline.

32. A flotation method of a vortex mineralization-static separation flotation device as claimed in claim 6, characterized in that: The following steps are involved: S1. The tailings discharge pipe (22) at the bottom of the separation chamber (20) is closed, and the raw ore slurry enters the separation chamber (20). The raw ore slurry in the separation chamber (20) is discharged through the outlet (A2) of the raw ore processing pipeline, and is fed into the mineralization cylinder (30) from the inlet (B1) of the vortex mineralization pipeline. After the mineralization cylinder (30) is filled with raw ore slurry, it is discharged from the outlet (B2) of the vortex mineralization pipeline, and enters the separation chamber (20) again from the inlet (C1) of the intermediate ore processing pipeline; S2. After the raw ore slurry in the separation chamber (20) reaches the set liquid level, the air conduit (31), the stirring device (32) and the tailings discharge pipe (22) are opened, and air enters the mineralization cylinder (30) and forms tiny bubbles that collide with the mineral particles to form gas-containing medium ore slurry; S3. The gas-containing medium ore pulp enters the separation chamber (20) through the inlet (C1) of the medium ore processing pipeline, the tiny bubbles are released and collide with the mineral particles in the separation chamber (20) to be mineralized, the low-density mineralized bubbles move toward the center of the separation chamber (20) and float upward, the high-density unmineralized particles move toward the inner wall of the separation chamber (20) and descend, and the floating mineralized bubbles collide with the raw ore pulp entering the separation chamber (20) in countercurrent to be mineralized; S4. The minerals that are not mineralized with the microbubbles descend, and the low-density unmineralized minerals in the middle area of ​​the separation chamber (20) are discharged as intermediate ore through the outlet (A2) of the raw ore processing pipeline, and the high-density unmineralized minerals in the surrounding area of ​​the separation chamber (20) form tailings and are discharged from the tailings discharge pipe (22). S1-S3 are repeated, and the mineralized bubbles continue to form a stable foam layer at the top of the separation chamber (20), and the foam layer overflows and is collected; S5. After the flotation process is completed, the feed of the inlet (A1) of the raw ore processing pipeline is stopped, the tailings discharge pipe (22) is closed, the drive motor (37) is turned off, and the discharge pipe (36) is opened to discharge the residual slurry in the separation chamber (20) and the mineralization cylinder (30). After the liquid level in the mineralization cylinder (30) is lower than the inlet of the air duct (31), the air duct (31) is closed. After the residual slurry in the separation chamber (20) is completely discharged, the circulation pump (10) is turned off. After all the discharge is completed, the discharge pipe (36) is closed.

33. A flotation method of an eddy current mineralization-static separation flotation device as claimed in claim 32, characterized in that: The inlet (C1) of the intermediate ore processing pipeline is arranged on the bottom side wall of the separation chamber (20), and a swirl cone (23) is arranged inside the separation chamber (20). The swirl cone (23) has a slope surface arranged opposite to the inlet (C1) of the intermediate ore processing pipeline. The intermediate ore slurry enters the separation chamber (20) from the inlet (C1) of the intermediate ore processing pipeline and impacts the slope surface of the swirl cone (23) to form a swirl flow. The swirl flow strengthens the collision between the mineral particles and the bubbles, and promotes the low-density mineralized bubbles to have a floating tendency.

34. A flotation method of an eddy current mineralization-static separation flotation device as claimed in claim 32, characterized in that: The inlet (B1) of the eddy current mineralization pipeline is arranged on the bottom side wall of the mineralization cylinder (30), and at least two inlet pipelines are arranged opposite to each other so that the medium ore enters the mineralization cylinder (30) in the form of a collision flow, thereby strengthening the collision and adhesion of fine-grained minerals and bubbles through the collision flow, and preventing the minerals from accumulating in the mineralization cylinder (30).

35. The flotation method of the eddy current mineralization-static separation flotation device as claimed in claim 32, characterized in that: The foam layer is collected by a concentrate collecting device (60) arranged at an overflow port at the top of the separation chamber (20); the concentrate collecting device (60) comprises a bottom plate (62) sleeved on the outside of the overflow port at the top of the separation chamber (20), the bottom plate (62) being arranged at an angle, and a concentrate discharge port (621) for discharging mineralized foam is provided at the lowest end of the bottom plate (62); a water outlet is arranged above the bottom plate (62), and water discharged from the water outlet is used to flush the mineralized foam to promote discharge.

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