Flotation method and device for synchronously intensifying mineralization and separation in single separation chamber

Abstract

The invention relates to the field of mineral processing, and discloses a flotation method and device for synchronously intensifying mineralization and separation in a single separation chamber, the flotation device comprises a flotation column unit, a pulse airflow generation subsystem is arranged outside the flotation column unit, and the pulse airflow generation subsystem is combined with a control system and used for controlling the flotation column unit according to the real-time requirement of mineral separation. The pulse frequency is changed in real time by adjusting control parameters; the flotation column unit comprises a cylindrical separation cavity, a microporous titanium aeration disc is arranged at the bottom of the cylindrical separation cavity, and a connecting pipeline is fixedly connected to the middle of the microporous titanium aeration disc. The micro-porous titanium aeration disc is arranged at the bottom of the single cylindrical separation chamber, an external pulse airflow generation subsystem is coupled, space integration of mineralization and separation functions is achieved, and pulse airflow generated by the rotary valve is used for directly driving strong turbulent flow mineralization at the bottom of the chamber and steady flow separation at the upper portion of the chamber.

Description

Technical Field

[0001] This invention relates to the field of mineral processing, specifically to a flotation method and apparatus for simultaneously enhancing mineralization and separation within a single sorting chamber. Background Technology

[0002] Foam flotation is a core technology for mineral separation that utilizes the differences in the physicochemical properties of mineral surfaces. The efficiency of the flotation process depends on the collision, adhesion, and desorption efficiencies between particles and bubbles, and these microscopic processes are directly constrained by the internal fluid dynamics of the flotation equipment and the properties of the bubble medium. In flotation engineering practice, there is a core contradiction: the mineralization process requires high-intensity energy input to overcome the hydration film energy barrier between particles and bubbles and increase the collision probability, while the separation process requires a low-shear, stable flow field to prevent the desorption of attached particles and reduce gangue entrainment.

[0003] To address the energy conflict between mineralization and separation, existing technologies, such as reactive flotation machines, employ a spatial partitioning strategy. This involves setting up independent high-energy reactors for forced mineralization, followed by series-connected low-turbulence separation tanks for separation. However, this split structure increases system complexity. Independent reactors and separators not only incur high infrastructure and maintenance costs but also increase energy consumption for fluid transport. Furthermore, the energy input in the high-energy reactor is rapidly dissipated after the slurry enters the separation zone, failing to provide sustained optimization of the subsequent separation flow field, resulting in relatively low overall system energy efficiency.

[0004] Regarding bubble generation, traditional porous media aeration or mechanical stirring methods produce relatively large bubbles. When gas passes through micropores, a channel effect easily occurs, requiring bubbles to grow until buoyancy is sufficient to overcome surface tension and wall adhesion before they can detach, resulting in large initial bubble sizes. Furthermore, due to the randomness of the pore opening state and the subsequent coalescence of bubbles, the bubble swarms exhibit a wide particle size distribution. Large and widely distributed bubbles reduce the bubble surface flux, limiting the collisional collection efficiency of fine-grained minerals.

[0005] The physical properties of the bubble medium further deteriorate the macroscopic flow field characteristics within the flotation equipment. Bubbles with a wide particle size distribution exhibit varying terminal rise velocities. The entrainment effect of the rapid rise of large-diameter bubbles, combined with the retention effect of small-diameter bubbles, induces intense internal liquid-phase circulation and axial backmixing within the separation chamber. This non-ideal flow state leads to a wider distribution of pulp residence time, resulting in reduced recovery rates for some target minerals due to short-circuiting loss, while some gangue particles are retained or entrained in the froth layer, lowering the concentrate grade. Traditional equipment struggles to construct a stable flow field within a single chamber that suppresses backmixing and approximates an ideal piston flow, thus limiting further improvements in separation accuracy and processing capacity. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a flotation method and apparatus for simultaneously enhancing mineralization and separation within a single sorting chamber. This solves the problems of existing flotation technologies that rely on complex independent multi-chamber structures to coordinate the contradiction between high-energy mineralization and steady-flow separation, the wide particle size distribution of bubbles generated by conventional aeration leading to low microscopic collection efficiency, and the severe axial backmixing inside the equipment induced by differences in bubble rising speed, which limits sorting accuracy and recovery rate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a flotation method and apparatus for simultaneous enhanced mineralization and separation within a single sorting chamber, comprising a flotation column unit, wherein a pulse airflow generation subsystem is provided outside the flotation column unit, and the pulse airflow generation subsystem, in conjunction with a control system, is used to change the pulse frequency in real time by adjusting control parameters according to the real-time requirements of mineral sorting. The flotation column unit includes a cylindrical separation chamber. A microporous titanium aeration disc is provided at the bottom of the cylindrical separation chamber. A connecting pipe is fixedly connected to the middle of the microporous titanium aeration disc. One end of the connecting pipe away from the cylindrical separation chamber is located in the middle of the pulse airflow generation subsystem. A tailings discharge valve is provided at the bottom of the cylindrical separation chamber.

[0008] Preferably, the pulse airflow generation subsystem includes a rotary valve, which is disposed outside the flotation column unit. The bottom of the rotary valve has a pulse airflow output port. A servo motor drive unit is disposed outside the rotary valve. The output end of the servo motor drive unit is provided with a synchronous belt drive mechanism. A connecting pipe is fixedly connected to the middle of the rotary valve. The connecting pipe is connected to the microporous titanium aeration disc.

[0009] Preferably, the rotary valve has a main air inlet at the top, a stator and a rotor in the middle, and an exhaust port in the middle.

[0010] Preferably, a concentrate foam overflow trough is fixedly connected to the outside of the cylindrical sorting chamber, and a slurry inlet is fixedly connected to the upper part of the cylindrical sorting chamber.

[0011] Preferably, the pulse airflow generation subsystem further includes an air compressor and an air pretreatment unit; the outlet of the air compressor is connected to the air pretreatment unit, and the outlet of the air pretreatment unit is connected to the inlet of the rotary valve.

[0012] Preferably, the control system includes a programmable logic controller (PLC), which is electrically connected to the pulse airflow generation subsystem. The PLC is externally electrically connected to a servo driver, and the PLC sends speed commands to the servo driver to control the frequency of the pulse airflow by adjusting the rotation speed of the servo motor drive unit.

[0013] Preferably, the air pretreatment unit includes a filter, which is fixedly connected to the outside of the air compressor. An air storage tank is disposed outside the filter. A pressure reducing valve is disposed between the filter and the air storage tank. A pressure gauge is disposed in the middle of the pressure reducing valve.

[0014] Preferably, the rotary valve has an arc-shaped through groove in the middle for periodically connecting the main air inlet on the stator with the pulse airflow outlet.

[0015] Preferably, the rotary valve has a circular vent hole in the middle, which overlaps with the vent on the stator to facilitate rapid pressure relief.

[0016] A flotation method for simultaneous enhanced mineralization and separation within a single separation chamber includes the following steps: S1: Start the air source in the pulse airflow generation subsystem and set the rotation speed of the rotary valve through the control system; S2: The control system drives the rotary valve to rotate, converting continuous air intake into pulsed airflow, which is then delivered to the microporous titanium aeration disc at the bottom of the flotation column unit through the connecting pipeline. S3: Feed the slurry into the flotation column unit, and in the area above the microporous titanium aeration disc, use the bubbles generated by the pulsed airflow to collide with the mineral particles for mineralization. After mineralization, the bubbles carry mineral particles to the upper part of the cylindrical sorting chamber for separation, forming concentrate foam which is discharged from the concentrate foam overflow trough, and tailings are discharged from the tailings discharge valve.

[0017] This invention provides a flotation method and apparatus for simultaneous enhanced mineralization and separation within a single separation chamber. It offers the following advantages: 1. This invention achieves spatial integration of mineralization and separation functions by setting a microporous titanium aeration disc at the bottom of a single cylindrical sorting chamber and coupling it with an external pulsed airflow generation subsystem. This device eliminates the need for a separate reactor required by traditional reaction-separation flotation machines, utilizing pulsed airflow generated by a rotary valve to directly drive the intense turbulent mineralization at the bottom of the chamber and the steady-flow separation at the top. This structure simplifies the equipment system, reduces floor space and infrastructure costs, and also lowers fluid transport energy consumption and equipment maintenance complexity.

[0018] 2. This invention utilizes the arc-shaped through-slot and circular exhaust port of a rotary valve to periodically open and close the air intake, forming intermittent airflow pulses with high shear force at the microporous titanium aeration disc. This mechanism physically limits the growth time of bubbles at the orifice, overcoming the defect of bubble merging and growth due to the channel effect in conventional continuous aeration, thereby generating a group of small and uniformly distributed monodisperse bubbles. The highly uniform bubbles not only increase the gas-liquid contact surface area but also enhance the collision and collection probability of bubbles with hydrophobic mineral particles.

[0019] 3. This invention eliminates the difference in rising velocity and wake entrainment effect caused by the difference in bubble size by generating monodisperse microbubble clusters, effectively suppressing axial backmixing inside the sorting chamber. After the bubbles complete particle capture at the bottom of the chamber using initial high kinetic energy, a stable upward flow field close to an ideal piston flow is formed in the main sorting zone. This hydrodynamic state narrows the pulp residence time distribution, ensuring the recovery rate of the target mineral while reducing the mechanical entrainment of gangue particles, thus improving the sorting accuracy and processing efficiency of the flotation process. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the air compressor structure of the present invention; Figure 3 This is a schematic diagram of the filter structure of the present invention; Figure 4 This is a schematic diagram of the flotation column unit structure of the present invention; Figure 5 This is a schematic diagram of the microporous titanium aeration disc structure of the present invention; Figure 6 This is a schematic diagram of the programmable logic controller structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the rotary valve of the present invention; Figure 8 for Figure 1 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the flow field zoning control and enhanced separation mechanism within a single sorting chamber according to the present invention; Figure 10 This is a schematic diagram illustrating the kinetic process of bubble generation on the microporous surface driven by pulsed airflow according to the present invention.

[0021] Among them, 100 is the flotation column unit; 110 is the cylindrical separation chamber; 120 is the concentrate foam overflow trough; 130 is the tailings discharge valve; 140 is the slurry feed inlet; 150 is the microporous titanium aeration disc; 200 is the pulse airflow generation subsystem; 210 is the air compressor; 220 is the air pretreatment unit; 221 is the filter; 222 is the pressure reducing valve; 223 is the pressure gauge; 224 is the air storage tank; 230 is the rotary valve; 231 is the main air inlet; 232 is the pulse airflow output port; 233 is the exhaust port; 234 is the servo motor drive unit; 235 is the synchronous belt drive mechanism; 2310 is the stator; 2320 is the rotor; 2330 is the arc-shaped through slot; 2340 is the circular exhaust hole; 300 is the connecting pipeline; 400 is the control system; 410 is the servo driver; and 420 is the programmable logic controller. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 4 Appendix Figure 5 , Figure 9 and Figure 10 The present invention provides a flotation method and apparatus for simultaneous enhanced mineralization and separation in a single sorting chamber, including a flotation column unit 100, and a pulse airflow generation subsystem 200 disposed outside the flotation column unit 100. The pulse airflow generation subsystem 200 is combined with a control system 400 to change the pulse frequency in real time by adjusting control parameters according to the real-time requirements of mineral sorting. The flotation column unit 100 includes a cylindrical separation chamber 110. A microporous titanium aeration disc 150 is installed at the bottom of the cylindrical separation chamber 110. A connecting pipe 300 is fixedly connected to the middle of the microporous titanium aeration disc 150. The end of the connecting pipe 300 away from the cylindrical separation chamber 110 is located in the middle of the pulse airflow generation subsystem 200. A tailings discharge valve 130 is installed at the bottom of the cylindrical separation chamber 110. A concentrate foam overflow trough 120 is fixedly connected to the outside of the cylindrical separation chamber 110, and a slurry inlet 140 is fixedly connected to the top of the cylindrical separation chamber 110.

[0024] The flotation unit for simultaneous enhanced mineralization and separation within a single separation chamber mainly consists of a flotation column unit 100, a pulsed gas flow generation subsystem 200, connecting pipelines 300, and a control system 400. The flotation column unit 100, serving as the core separation area, employs a single cylindrical separation chamber 110 structure. A slurry inlet 140 is located in the upper part of the chamber sidewall for feeding, a concentrate foam overflow trough 120 at the top to collect the rising mineralized foam, and a tailings discharge valve 130 at the bottom to discharge the separated tailings. To create a differentiated hydrodynamic environment within the single chamber, a microporous titanium aeration disc 150 is installed at the bottom center of the cylindrical separation chamber 110. The microporous titanium aeration disc 150 is connected to an external pulsed airflow generation subsystem 200 via a connecting pipe 300. The pulsed airflow generates a high-intensity turbulent environment in the bottom region of the chamber to enhance the collision and capture of mineral particles, while maintaining a stable laminar flow in the upper part of the chamber to facilitate bubble separation, thereby suppressing axial backmixing.

[0025] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 6 Appendix Figure 7 and attached Figure 8 The pulse airflow generation subsystem 200 includes a rotary valve 230, which is located outside the flotation column unit 100. A pulse airflow output port 232 is located at the bottom of the rotary valve 230. A servo motor drive unit 234 is located outside the rotary valve 230, and a synchronous belt drive mechanism 235 is located at the output end of the servo motor drive unit 234. A connecting pipe 300 is fixedly connected to the middle of the rotary valve 230, and the connecting pipe 300 is connected to the microporous titanium aeration disc 150. A main air inlet 231 is located at the top of the rotary valve 230, and a stator 2310 and a rotor 2320 are located in the middle of the rotary valve 230. An exhaust port 233 is also located in the middle of the rotary valve 230. The pulse airflow generation subsystem 200 also includes an air compressor 210 and an air pretreatment unit 220; the outlet of the air compressor 210 is connected to the air pretreatment unit 220, and the outlet of the air pretreatment unit 220 is connected to the inlet of the rotary valve 230. The air pretreatment unit 220 includes a filter 221, which is fixedly connected to the outside of the air compressor 210. An air receiver 224 is located outside the filter 221. A pressure reducing valve 222 is located between the filter 221 and the air receiver 224, and a pressure gauge 223 is located in the middle of the pressure reducing valve 222. An arc-shaped through-slot 2330 is formed in the middle of the rotary valve 230, used to periodically connect the main air inlet 231 on the stator 2310 with the pulse airflow outlet 232. A circular exhaust port 2340 is formed in the middle of the rotary valve 230, used to overlap and connect with the exhaust port 233 on the stator 2310 for rapid pressure relief.

[0026] The pulse airflow generation subsystem 200 is responsible for providing a pulse air source with controllable frequency and waveform. The pulse airflow generation subsystem 200 includes an air compressor 210 and an air pretreatment unit 220, which work together to provide clean and pressure-stable compressed air to the system. The air compressor 210, as the air source generator, is responsible for providing compressed air at a certain pressure. The outlet of the air compressor 210 is connected to the air pretreatment unit 220. The function of the air pretreatment unit 220 is to purify the air source and stabilize the pressure, ensuring that the gas entering the rotary valve 230 meets the precision control requirements. Specifically, the air pretreatment unit 220 includes a filter 221, a pressure reducing valve 222, and an air storage tank 224 connected in sequence. The filter 221 is fixedly connected to the external pipeline of the air compressor 210 and is filled with a filter element to filter out oil, moisture, and solid particulate impurities in the compressed air, preventing impurities from entering the rotary valve 230 and causing wear or blockage of the microporous titanium aeration disc 150. The air tank 224 is located between the filter 221 and the rotary valve 230 as a volume buffer container to eliminate pressure fluctuations generated during the working cycle of the air compressor 210 and ensure a stable airflow for continuous output.

[0027] The pressure reducing valve 222 is located in the middle of the pipeline between the filter 221 and the gas storage tank 224 (or at the outlet of the gas storage tank 224), and a pressure gauge 223 is installed in the middle of the pressure reducing valve 222. The pressure reducing valve 222 is used to adjust the high-pressure gas source to the set pressure value required by the process, and the pressure gauge 223 is used to display the pipeline pressure after pressure adjustment in real time, which is convenient for operators to monitor.

[0028] The pretreated gas enters the rotary valve 230, which is located outside the flotation column unit 100. The rotary valve 230 contains a stationary stator 2310 and a high-speed rotating rotor 2320. The stator 2310 has a main air inlet 231, a pulse airflow outlet 232, and an exhaust outlet 233. The rotor 2320 is connected to a servo motor drive unit 234 via a synchronous belt drive mechanism 235, and rotates at high speed under this drive.

[0029] A servo motor drive unit 234 is externally mounted on the rotary valve 230 as the rotation drive source. The servo motor drive unit 234 uses a high-response, high-precision servo motor. A synchronous belt drive mechanism 235 (including a driving pulley, a driven pulley, and a synchronous belt) is mounted on the output shaft of the servo motor drive unit 234. The other end of the synchronous belt drive mechanism 235 is connected to the rotor 2320 of the rotary valve 230. Using a synchronous belt drive ensures a strict proportional relationship between the motor speed and the rotor speed 2320, eliminates slippage, and ensures the control accuracy of the pulse frequency.

[0030] An arc-shaped slot 2330 is provided in the middle of the rotor 2320. The arc-shaped slot 2330 occupies a certain arc range in the circumferential direction of the rotor 2320. When the rotor 2320 rotates, the arc-shaped slot 2330 periodically passes over the air inlet and outlet channels on the stator 2310. When the arc-shaped slot 2330 is simultaneously connected to the main air inlet 231 and the pulse airflow outlet 232, the air path is open, and compressed air enters the connecting pipe 300 through the rotary valve 230, forming the conduction period of the pulse airflow. The arc length design of the arc-shaped slot 2330 determines the duration of the conduction period and the pulse duty cycle, thus realizing the conduction of airflow. A circular exhaust port 2340 is also provided in the middle of the rotor 2320. The position of the circular exhaust port 2340 and the arc-shaped through slot 2330 are phased in the circumferential direction. When the rotor 2320 continues to rotate, the arc-shaped through slot 2330 moves away, causing the air intake passage to close, and the circular exhaust port 2340 rotates to a position that overlaps with the exhaust port 233 on the stator 2310. At this time, the residual high-pressure gas in the connecting pipe 300 and the aeration disc cavity is rapidly depressurized to the atmosphere through the circular exhaust port 2340 and the exhaust port 233, forming a cutoff period for the pulse airflow. This achieves the cutoff and depressurization of the airflow. The on / off mechanism physically limits the growth time of bubbles on the surface of the microporous titanium aeration disc 150, generating uniformly sized monodisperse microbubbles.

[0031] The circular exhaust port 2340 and the arc-shaped through-slot 2330 create extremely steep rising and falling edges in the output airflow, enabling rapid cut-off and release of the airflow and providing a physical basis for generating high-shear-force pulsed airflow. This also provides the microporous titanium aeration disc 150 with clearly defined pulsed airflow boundaries. This mechanical forced cut-off overcomes the surface tension constraint and channel effect during the natural growth of bubbles on the microporous surface. Compared to continuous aeration, pulsed aeration physically limits the bubble growth time, forcing bubbles to detach at a tiny size, thus generating microbubbles with smaller particle size and larger specific surface area. More importantly, due to the highly consistent airflow parameters in each pulse cycle, the generated bubble swarm exhibits extremely high monodispersity (uniform size), significantly improving the overall quality of the bubble swarm and increasing its collision and contact opportunities with mineral particles.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 8 The control system 400 includes a programmable logic controller 420, which is electrically connected to the pulse airflow generation subsystem 200. The programmable logic controller 420 is externally electrically connected to a servo driver 410. The programmable logic controller 420 sends speed commands to the servo driver 410 and controls the servo motor drive unit 234 to control the frequency of the pulse airflow by adjusting the rotation speed.

[0033] The control system 400 acts as the central hub, sending precise speed commands to the servo driver 410 via the programmable logic controller 420 to control the rotational speed of the servo motor drive unit 234. The programmable logic controller 420 calculates the corresponding motor speed based on the set target pulse frequency value and sends speed commands (such as pulse sequences or analog voltages) to the servo driver 410. The servo driver 410 controls the servo motor drive unit 234 to operate at a constant or varying speed according to the commands, which in turn drives the rotor 2320 of the rotary valve 230 to rotate via the synchronous belt drive mechanism 235. By adjusting the servo motor speed, the frequency of the pulsed airflow can be continuously and precisely changed. The frequency of the pulsed airflow can be directly changed, thereby dynamically controlling the bubble size to adapt to the real-time requirements of the flow field environment for different mineral sorting processes.

[0034] To address particle size fluctuations across different mineral types or even the same mineral in different batches, operators do not need to replace hardware (such as aerators). They only need to adjust the servo motor speed via the control system 400 to change the pulse frequency. Changes in pulse frequency directly affect the gas volume per pulse and the shear frequency of bubble formation, thus enabling continuous, online fine-tuning of bubble size. This flexible control method ensures the device remains in optimal mineralization kinetics, meeting the complex and ever-changing demands of industrial production.

[0035] A flotation method for simultaneous enhanced mineralization and separation within a single separation chamber includes the following steps: S1: Start the air source in the pulse airflow generation subsystem 200 and set the rotation speed of the rotary valve 230 through the control system 400; S2: The control system 400 drives the rotary valve 230 to rotate, converting the continuous air intake into a pulsed airflow, which is then delivered to the microporous titanium aeration disc 150 at the bottom of the flotation column unit 100 through the connecting pipe 300. S3: Feed the slurry into the flotation column unit 100, and in the area above the microporous titanium aeration disc 150, use the bubbles generated by the pulsed airflow to collide with the mineral particles for mineralization. After mineralization, the bubbles carry mineral particles to the upper part of the cylindrical sorting chamber 110 for separation, forming concentrate foam which is discharged from the concentrate foam overflow trough 120, and tailings are discharged from the tailings discharge valve 130.

Claims

1. A flotation device for simultaneous enhanced mineralization and separation within a single separation chamber, characterized in that, include: A flotation column unit (100) is provided with a pulse airflow generation subsystem (200) outside the flotation column unit (100). The pulse airflow generation subsystem (200) is combined with the control system (400) to change the pulse frequency in real time by adjusting the control parameters according to the real-time requirements of mineral separation. The flotation column unit (100) includes a cylindrical separation chamber (110). A microporous titanium aeration disc (150) is provided at the bottom of the cylindrical separation chamber (110). A connecting pipe (300) is fixedly connected to the middle of the microporous titanium aeration disc (150). One end of the connecting pipe (300) away from the cylindrical separation chamber (110) is located in the middle of the pulse airflow generation subsystem (200). A tailings discharge valve (130) is provided at the bottom of the cylindrical separation chamber (110).

2. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 1, characterized in that, The pulse airflow generation subsystem (200) includes a rotary valve (230), which is located outside the flotation column unit (100). The bottom of the rotary valve (230) is provided with a pulse airflow output port (232). A servo motor drive unit (234) is provided outside the rotary valve (230). A synchronous belt drive mechanism (235) is provided at the output end of the servo motor drive unit (234). A connecting pipe (300) is fixedly connected to the middle of the rotary valve (230). The connecting pipe (300) is connected to the microporous titanium aeration disc (150).

3. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 2, characterized in that, The rotary valve (230) has a main air inlet (231) at the top, a stator (2310) and a rotor (2320) in the middle, and an exhaust port (233) in the middle.

4. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 1, characterized in that, The cylindrical sorting chamber (110) is fixedly connected to the outside of a concentrate foam overflow trough (120), and the upper part of the cylindrical sorting chamber (110) is fixedly connected to a slurry inlet (140).

5. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 2, characterized in that, The pulse airflow generation subsystem (200) further includes an air compressor (210) and an air pretreatment unit (220); the outlet of the air compressor (210) is connected to the air pretreatment unit (220), and the outlet of the air pretreatment unit (220) is connected to the inlet of the rotary valve (230).

6. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 2, characterized in that, The control system (400) includes a programmable logic controller (420), which is electrically connected to the pulse airflow generation subsystem (200). The programmable logic controller (420) is externally electrically connected to a servo driver (410). The programmable logic controller (420) sends speed commands to the servo driver (410) to control the servo motor drive unit (234) to control the frequency of the pulse airflow by adjusting the rotation speed.

7. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 5, characterized in that, The air pretreatment unit (220) includes a filter (221), which is fixedly connected to the outside of the air compressor (210). An air tank (224) is provided outside the filter (221). A pressure reducing valve (222) is provided in the middle of the filter (221) and the air tank (224). A pressure gauge (223) is provided in the middle of the pressure reducing valve (222).

8. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 2, characterized in that, The rotary valve (230) has an arc-shaped through groove (2330) in the middle, which is used to periodically connect the main air inlet (231) on the stator with the pulse airflow outlet (232).

9. The flotation device for simultaneous enhanced mineralization and separation within a single separation chamber according to claim 2, characterized in that, The rotary valve (230) has a circular vent hole (2340) in the middle, which is used to overlap with the vent port (233) on the stator to conduct and quickly release pressure.

10. A flotation method for simultaneous enhanced mineralization and separation within a single separation chamber, characterized in that, A flotation apparatus for simultaneous enhanced mineralization and separation within a single separation chamber as described in any one of claims 1-9, comprising the following steps: S1: Start the air source in the pulse airflow generation subsystem (200) and set the rotation speed of the rotary valve (230) through the control system (400); S2: The control system (400) drives the rotary valve (230) to rotate, converting continuous air intake into pulse airflow, which is then delivered to the microporous titanium aeration disc (150) at the bottom of the flotation column unit (100) through the connecting pipeline (300). S3: Feed slurry into the flotation column unit (100), and in the area above the microporous titanium aeration disc (150), use the bubbles generated by the pulsed airflow to collide with the mineral particles for mineralization; After mineralization, the bubbles carry mineral particles to the upper part of the cylindrical sorting chamber (110) for separation, forming concentrate foam which is discharged from the concentrate foam overflow trough (120), and the tailings are discharged from the tailings discharge valve (130).

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