WO2020220584A1

WO2020220584A1 - Flow synergy-enhanced flotation separation apparatus and method

Info

Publication number: WO2020220584A1
Application number: PCT/CN2019/109882
Authority: WO
Inventors: 张海军; 刘炯天; 闫小康; 王利军; 刘清侠; 王永田; 李丹龙; 李鑫
Original assignee: 中国矿业大学
Priority date: 2019-04-29
Filing date: 2019-10-08
Publication date: 2020-11-05
Also published as: CA3100767C; CA3100767A1; CN109939839B; CN109939839A

Abstract

A flow synergy-enhanced flotation separation apparatus and a method, suitable for use in flotation of microscopic mineral particles or coal particles. The apparatus comprises a circulation pump (1), a mineralization turbulent flow generator (2), and a flotation separation releaser (5). A pulp is fed into the flotation separation releaser (5), and more-buoyant particles rapidly rise and are expelled by means of a concentrate pipe (16) on a froth trough (3) above the flotation separation releaser (5). Moderately-buoyant particles are separated by means of the flotation separation releaser (5), and then a portion float to the froth trough (3) above the flotation separation releaser (5) and are expelled via the concentrate pipe (16) on the froth trough (3). Less-buoyant particles that have been separated by the flotation separation releaser (5) enter a middling/tailing separator via a pulp flow channel between a conical flow director and a cylindrical wall of the flotation separation releaser (5), and are divided into two portions. One portion serves as tailings and is expelled from the flotation separation releaser (5), and a portion is fed into the mineralization turbulent flow generator (2) by means of the circulation pump (1), and after undergoing high-efficiency mineralization, is sprayed back into the flotation separation releaser (5), thus achieving circulating separation. The invention features a simple structure and an excellent flotation result.

Description

Fluid synergistic enhanced flotation separation device and method

Technical field

The invention relates to a fluid cooperative enhanced flotation separation device and method, and is particularly suitable for a fluid cooperative enhanced flotation separation device and method used for the flotation of fine mineral particles or coal particles.

Background technique

Flotation is a method of sorting according to the difference of mineral particle surface physical and chemical properties and the difference of mineral floatability. Among them, the mineralization process is the most critical, involving the three main processes of collision, adhesion and desorption. Among them, collision is the basic premise of flotation mineralization, mainly controlled by fluid dynamics. For fine particles, in order to break through the streamlines and collide with bubbles efficiently, it is necessary to construct a reasonable fluid environment, such as increasing the collision probability of fine particles and bubbles with the help of highly turbulent impinging flow and cross flow, thereby enhancing the mineralization of fine particles effect. In addition, for the flotation of fine mineral particles, gangue minerals are more likely to enter the flotation foam due to entrainment, thereby affecting the quality of the concentrate product. Although the foam clean water has a certain cleaning effect, the effect is not ideal, and it is difficult to design a reasonable foam cleaning water flushing structure, and the cleaning process is also difficult to optimize and control.

Summary of the invention

Technical problem: In view of the above technical problems, a fluid synergistic enhanced flotation separation device and method with simple structure, good use effect, and effective mineralization of fine-grained minerals are provided.

Technical solution: In order to achieve the above technical objectives, the fluid synergistic enhanced flotation separation device of the present invention includes a circulating pump, a turbulent mineralization generator and a flotation separation releaser, and the turbulent mineralization generator is arranged above the flotation separation releaser. Ring pumps respectively connect the outlet of the flotation separation releaser with the turbulent mineralization generator;

The turbulent mineralization generator includes a cylinder, a truncated cone with a funnel structure is arranged under the cylinder, a slurry distribution pipe is arranged side by side around the cylinder, and a plurality of impinging stream mineralization is arranged transversely between the slurry distribution pipe and the cylinder. Tube and multiple cross-flow mineralization tubes, cross-flow mineralization tube and cylinder are connected in tangential direction, impinging flow mineralization tube and cylinder are connected in radial direction, cross-flow mineralization tube and impinging flow mineralization tube are both installed There is a micro-bubble generator, and there is a slurry injection pipe under the truncated cone;

The flotation separation releaser has a cylindrical structure, the bottom of the flotation separation releaser is narrowed to form an inverted terrace structure, the bottom center is provided with a tailings tube, one side of the tailings tube is provided with a medium ore tube, and the upper part of the cylindrical structure is provided There is a foam tank, the bottom of the foam tank is equipped with a concentrate tube, the cylindrical structure is provided with a vertical rectangular structure ultrasonic vibration plate under the foam tank, and a ring-shaped feed distributor is provided under the ultrasonic vibration plate. The material distributor is provided with multiple nozzles, the cylindrical structure is provided with a sieve plate under the annular feeder distributor, and the inverted terrace structure at the bottom of the cylindrical structure is equipped with a conical deflector. The conical deflector includes Counterattack plate, there is a gap between the bottom of the counterattack plate and the bottom of the inverted terrace structure. The inverted terrace structure is provided with an inverted cone whose contour matches the inverted terrace structure, and there is a slurry flow channel between the inverted terrace structure. , The inverted cone is provided with a plurality of inverted trapezoidal structure guide vertical plates, and the slurry jet pipe extends from the foam tank on the top of the flotation separation releaser into the cylindrical structure, passes through the ultrasonic vibration plate, the feed distributor, Between the sieve plate and several vertical guide plates, the end of the slurry injection pipe is a horn structure;

The middle ore pipe is connected with the inlet of the circulating pump, and the outlet of the circulating pump is connected with the slurry distribution pipe.

Both the impinging stream mineralization tube and the cross-flow mineralization tube are in the form of venturi tube; the impinging stream mineralization tube and the cross-flow mineralization tube are alternately arranged at intervals; the adjacent cross-flow mineralization tubes are connected to the cylinder in opposite directions ; The inner wall of the slurry jet pipe is provided with a prismatic turbulence strengthening generator.

A method for fluid synergistic enhanced flotation separation includes the following steps:

a. First, close the tailings pipe, and feed the initial slurry after mixing into the feed distributor from the inlet of the feed distributor, and spray it into the flotation separation releaser through the nozzle of the feed distributor. The initial slurry is under gravity. After being diffused by the sieve plate, it is fed into the conical deflector, and flows into the middle ore pipe through the slurry flow channel between the conical deflector and the flotation separation releaser barrel wall, and is fed into the slurry distribution pipe through the circulating pump;

b. The slurry in the slurry distribution is fed into the cylinder through the impinging stream mineralization tube and the cross-flow mineralization tube, and a swirling flow of square and different directions is generated in the cylinder, and the compressed air is mixed into the slurry through the microbubble generator to be in the turbulent mine The forced mixed mineralization of particles and microbubbles is realized in the chemical generator, and the forced mixed mineralized slurry is fed to the conical deflector in the flotation separation releaser through the slurry spray pipe at the bottom of the turbulent mineralization generator;

Part of the slurry carrying difficult-to-float particles enters the slurry flow channel between the cone-shaped deflector and the wall of the flotation separator release from the gap of the cone-shaped deflector, and finally enters the tailings separator of China Mines, opens the tailings pipe, and enters Part of the slurry of the tailings separator of Zhongkuang is used as tailings to be discharged from the tailings tube outlet of the tailings tube to the flotation separation releaser; the other part is used as the medium to be fed to the circulating pump through the medium ore tube to continue to circulate, so as to realize circulating separation. At the same time strengthen the suspension of coarse particles and increase the floatation bubble load;

Part of the ore slurry carrying easy-floating particles is adhered to by the air bubbles, and then under the action of the counter-attack plate and the vertical guide plate in the conical deflector, the lifting speed of the mineralized bubbles is increased. The easy-floating particles float together with the air bubbles and pass through the sieve. After filtering out, the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate, and then discharged from the concentrate tube outlet of the concentrate tube on the foam tank above the flotation separator releaser, and the remaining particles remain in the flotation together with the slurry Inside the release release;

c. The easy-floating particles in the slurry rise and float rapidly, and the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate, and then discharged from the concentrate pipe outlet of the concentrate pipe on the foam tank above the flotation separation releaser;

d. The medium floatable particles in the slurry are rectified by the sieve plate in the flotation separation releaser to avoid the violent slurry disturbance in the flotation separation releaser causing the mineralized particles to fall off the bubbles, and then vibrate by the rectangular ultrasonic vibration plate After cleaning the entrained impurity mineral particles, it is discharged from the concentrate pipe on the foam tank above the flotation separation releaser.

The compressed air is sent into the impinging stream mineralization tube and the cross-flow mineralization tube through the microbubble generator, and the forced mixing and mineralization of particles and microbubbles are realized in the turbulent mineralization generator, which provides guarantee for subsequent flotation separation.

Beneficial effects: The fluid synergistic enhanced flotation separation device and method integrate high-speed impinging flow, cross-flow, counter-current and ultrasonic oscillating flow. The impinging flow and cross-flow generated by the turbulent mineralization generator improve the mineralization effect of difficult-to-float particles ; The countercurrent generated by the flotation separation releaser plays a synergistic effect of secondary separation, enhanced particle suspension and increased flotation bubble load; the oscillating flow generated by the rectangular ultrasonic vibration plate set in the upper foam layer of the flotation separator further strengthens The cleaning effect of the impurity mineral particles entrained in the foam improves the grade of the concentrate.

In view of the above-mentioned problems, the present invention proposes a method for enhancing mineral flotation separation efficiency and improving concentrate grade by integrating high-speed impinging flow, cross-flow, counter-current and ultrasonic oscillation flow. The impinging flow and cross-flow produced by a turbulent mineralization reactor are improved. The collision probability of fine and difficult-to-float particles and bubbles strengthens the effect of mixing and mineralization of fine particles; the countercurrent generated by the countercurrent flotation device strengthens the secondary separation of mineral particles, and at the same time strengthens the synergistic effect of the suspension of coarse particles and the increase of the flotation bubble load ; The oscillating flow generated by the rectangular ultrasonic vibration plate in the upper foam layer of the flotation separator further strengthens the cleaning effect of the impurity mineral particles entrained in the foam and improves the concentrate grade. Through the implementation of the above device and method, the mineral flotation separation process is strengthened, and the recovery rate of target minerals and the product quality are improved.

Description of the drawings

Fig. 1 is a schematic diagram of the structure of a flotation separation device with enhanced fluid synergy of the present invention.

In the picture: 1-circulating pump, 2-turbulent mineralization generator, 3-foam tank, 4-feed distributor, 5-flotation separation releaser, 6-slurry jet pipe, 7-ultrasonic vibration plate, 8- Sieve plate, 9- diversion vertical plate, 10-medium mine pipe, 11-slurry distribution pipe, 12-microbubble generator, 13-impinging stream mineralization pipe, 14-cross flow mineralization pipe, 15-turbulence intensification generation Device, 16-concentrate pipe, 17-inverted cone, 18-counterattack plate, 19-tailings pipe, A-feed distributor inlet, B-tailings pipe outlet, C-concentrate pipe outlet.

Detailed ways

The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings:

As shown in Figure 1, the fluid synergistic enhanced flotation separation device is characterized in that it includes a circulating pump 1, a turbulent mineralization generator 2 and a flotation separation releaser 5. The turbulent mineralization generator 2 is set in the flotation separation release Above the device 5, the ring pump 1 respectively connects the outlet of the flotation separation release device 5 with the turbulent mineralization generator 2;

The turbulent mineralization generator 2 includes a cylinder, a truncated cone with a funnel structure is arranged below the cylinder, a slurry distribution pipe 11 is arranged side by side around the cylinder, and a plurality of collisions are arranged laterally between the slurry distribution pipe 11 and the cylinder. The flow mineralization tube 13 and a plurality of cross flow mineralization tubes 14, the cross flow mineralization tube 14 is connected with the cylinder along the tangential direction, the impinging flow mineralization tube 13 is connected with the cylinder along the radial direction, the cross flow mineralization tube 14 and The impinging stream mineralization tube 13 is equipped with a microbubble generator 12, and there is a slurry jet pipe 6 below the truncated cone; the impinging stream mineralization tube 13 and the cross-flow mineralization tube 14 are both in the form of a venturi tube; The chemical tube 13 and the cross-flow mineralization tube 14 are arranged alternately at intervals; the adjacent cross-flow mineralization tubes 14 are connected to the cylinder in the opposite direction; the inner wall of the slurry injection tube 15 is provided with a prismatic turbulence intensifying generator 15;

The flotation separation releaser 5 has a cylindrical structure. The bottom of the flotation separation releaser 5 is narrowed to form an inverted terrace structure. The bottom center is provided with a tailing pipe 19, and one side of the tailing pipe 19 is provided with a medium ore pipe 10. The upper part of the cylindrical structure is provided with a foam tank 3, and the bottom of the foam tank 3 is provided with a concentrate tube 16. The cylindrical structure is provided with a rectangular ultrasonic vibration plate 7 placed vertically below the foam tank 3 and below the ultrasonic vibration plate 7. A feed distributor 4 with a ring structure is provided. The feed distributor 4 is provided with multiple nozzles. A screen 8 is provided under the ring feed distributor 4 in the cylindrical structure. An inverted ladder structure at the bottom of the cylindrical structure There is a cone-shaped deflector. The cone-shaped deflector includes a counterattack plate 18. There is a gap between the bottom of the counterattack plate 18 and the bottom of the inverted terrace structure. The inverted terrace structure has a contour that matches the inverted terrace structure. , And leave the inverted cone 17 of the slurry flow channel between the inverted terrace structure, and the inverted cone 17 is provided with a plurality of inverted trapezoidal structure guide vertical plates 9, the slurry injection pipe 6 is separated from the flotation releaser 5 The foam tank 3 on the top extends into the inside of the cylindrical structure, passes through the ultrasonic vibration plate 7, the feed distributor 4, the sieve plate 8 and reaches between the multiple guide vertical plates 9, and the end of the slurry injection pipe 6 is a horn structure;

The middle mine pipe 10 is connected with the inlet of the circulating pump 1, and the outlet of the circulating pump 1 is connected with the slurry distribution pipe 11.

a. First, close the tailings pipe 19, and feed the initial slurry after mixing into the feed distributor 4 from the feed distributor inlet A, and spray it into the flotation release releaser 5 through the nozzle of the feed distributor 4, The initial slurry is diffused by the sieve plate 8 under the action of gravity, and then fed into the cone deflector, and flows into the middle ore pipe 10 through the slurry flow channel between the cone deflector and the flotation separation releaser 5 barrel wall, and passes through the circulation Pump 1 feeds into the slurry distribution pipe 11;

b. The slurry in the slurry distribution 11 is fed into the cylinder through the impinging stream mineralization tube 13 and the cross-flow mineralization tube 14 and generates a swirling flow in different directions in the cylinder, and the compressed air is mixed into the slurry through the microbubble generator 12 In this way, the forced mixed mineralization of particles and microbubbles is realized in the turbulent mineralization generator 2, and the forced mixed mineralized slurry is fed into the flotation separation releaser 5 through the slurry injection pipe 15 at the bottom of the turbulent mineralization generator 2. Conical deflector; compressed air is sent into the impinging stream mineralization tube 13 and the cross-flow mineralization tube 14 through the microbubble generator 12, and the forced mixing and mineralization of particles and microbubbles is realized in the turbulent mineralization generator 2. Provide guarantee for subsequent flotation separation;

Part of the slurry carrying difficult-to-float particles enters the slurry flow channel between the cone-shaped deflector and the flotation separation releaser 5 from the gap of the cone-shaped deflector, and finally enters the tailings separator of China Mine, and the tailings pipe is opened 19 , Part of the slurry that enters the tailings separator of Zhongkuang is used as tailings and is discharged from the tailings tube outlet B of the tailings pipe 19 to the flotation separation releaser 5; the other part is fed into the circulating pump 1 through the Zhongmine pipe 10 as the medium and continues to circulate , So as to realize cyclic separation, at the same time strengthen the suspension of coarse particles and increase the load of flotation bubbles;

Part of the ore slurry carrying easy-floating particles is adhered to by the air bubbles, and then under the action of the counter-attack plate 18 and the vertical guide plate 9 in the cone deflector, the lifting speed of the mineralized air bubbles is increased. The easy-floating particles float together with the air bubbles and pass through the screen. The plate 8 is filtered out, and the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate 7, and then discharged from the concentrate pipe outlet C of the concentrate pipe 16 on the foam tank 3 above the flotation separation releaser 5, and the remaining particles Continue to stay in the flotation separation releaser 5 together with the pulp;

c. The easy-floating particles in the slurry rise and float rapidly. After the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate 7, the concentrate tube 16 on the foam tank 3 above the flotation separator 5 is separated. Exit C discharge;

d. The medium floatable particles in the slurry are rectified by the sieve plate 8 in the flotation separation releaser 5 to avoid the violent slurry disturbance in the flotation separation releaser 5 causing the mineralized particles to fall off the bubbles, and then pass the rectangular ultrasonic wave After the oscillating flow of the vibrating plate 7 washes away the entrained impurity mineral particles, it is discharged from the concentrate pipe 16 on the foam tank 3 above the flotation separation releaser 5.

The specific working process: a. First, the initial slurry after mixing is fed into the flotation separation releaser 5 from the inlet A of the feed distributor 4, and the easily floating particles rise and float quickly, and the entrainment is cleaned by the rectangular ultrasonic vibration plate 7 oscillating flow After the impurity mineral particles are discharged from the outlet C of the concentrate pipe 16 on the foam tank 3 above the flotation separation releaser 5, they become a concentrate product;

b. After the medium floatable particles are sorted by the flotation separation releaser 5, a part of the flotation separation releaser 5 is rectified by the sieve plate 8 and floated, and then the entrained impurity mineral particles are cleaned by the rectangular ultrasonic vibration plate 7 oscillating flow , Discharged from the concentrate pipe 16 on the foam tank 3 above the flotation separation releaser 5;

c. The difficult-to-float particles separated by the flotation separation releaser 5 enter the middle mine tailings separator through the slurry flow channel between the cone deflector and the flotation separation releaser 5, and are divided into two parts One part is used as tailings and discharged from the flotation separation releaser 5 through tailings pipe 19 outlet B to become tailings products; the other part is used as a medium mine to be given to circulation pump 1 through medium mine pipe 10, and then to turbulent mine by circulation pump 1 The slurry distribution pipe 11 of the chemical generator 2 is efficiently mineralized by the turbulent mineralization generator 2 and then injected into the flotation separation releaser 5 to achieve cyclic separation, while strengthening the suspension of coarse particles and increasing the load of flotation bubbles;

d. Compressed air is sent into the impinging stream mineralization tube 13 and the cross-flow mineralization tube 14 respectively through the microbubble generator 12, and the forced mixing and mineralization of particles and microbubbles is realized in the turbulent mineralization generator 2, which is a subsequent flotation Separation provides protection.

Claims

A fluid cooperative enhanced flotation separation device, which is characterized in that it includes a circulating pump (1), a turbulent mineralization generator (2), and a flotation separation releaser (5). The turbulent mineralization generator (2) is set in Above the flotation separation releaser (5), the ring pump (1) respectively connects the outlet of the flotation separation releaser (5) with the turbulent mineralization generator (2);

The turbulent mineralization generator (2) includes a cylinder, a truncated cone with a funnel structure is arranged under the cylinder, and a slurry distribution pipe (11) is arranged side by side around the cylinder. The slurry distribution pipe (11) and the cylinder are A plurality of impinging stream mineralization tubes (13) and a plurality of cross-flow mineralization tubes (14) are arranged transversely. The cross-flow mineralization tubes (14) and the cylinder are connected in a tangential direction, and the impinging stream mineralization tubes (13) are connected with The cylinders are connected in the radial direction, the cross-flow mineralization tube (14) and the impinging stream mineralization tube (13) are both provided with a microbubble generator (12), and a slurry injection tube (6) is provided under the truncated cone;

The flotation separation releaser (5) has a cylindrical structure, the bottom of the flotation separation releaser (5) is narrowed to form an inverted terrace structure, and the bottom center is provided with a tailing pipe (19) and a tailing pipe (19). There is a medium ore pipe (10) on the side, a foam tank (3) is provided on the upper part of the cylindrical structure, a concentrate pipe (16) is provided at the bottom of the foam tank (3), and the cylindrical structure is provided inside the lower part of the foam tank (3). There is an ultrasonic vibration plate (7) with a rectangular structure vertically placed. A feed distributor (4) with a ring structure is arranged under the ultrasonic vibration plate (7). The feed distributor (4) is provided with multiple nozzles. A sieve plate (8) is provided under the annular feed distributor (4) in the cylinder structure, and a conical deflector is provided at the inverted terrace structure at the bottom of the cylindrical structure. The conical deflector includes a counterattack plate (18) There is a gap between the bottom of the counterattack plate (18) and the bottom of the inverted terrace structure. The inverted terrace structure is provided with a contour that matches the inverted terrace structure, and there is a slurry flow channel between the inverted terrace structure. Cone (17), inverted cone (17) is provided with a plurality of inverted trapezoidal structure guide vertical plates (9), the slurry injection pipe (6) from the foam tank (3) on the top of the flotation separation release device (5) ) Extends into the inside of the cylindrical structure, passes through the ultrasonic vibration plate (7), feed distributor (4), sieve plate (8) and reaches between the multiple deflector vertical plates (9), and the slurry injection pipe (6) The end is a horn structure;

The middle mine pipe (10) is connected with the inlet of the circulating pump (1), and the outlet of the circulating pump (1) is connected with the slurry distribution pipe (11).
The fluid synergistic enhanced flotation separation device according to claim 1, characterized in that: the impinging stream mineralization tube (13) and the cross-flow mineralization tube (14) are both in the form of a venturi tube; the impinging stream mineralization tube ( 13) and the cross-flow mineralization tube (14) are arranged alternately; the adjacent cross-flow mineralization tubes (14) are connected to the cylinder in the opposite direction; the inner wall of the slurry injection tube (15) is provided with a prismatic turbulence intensifying generator (15).
A method for fluid cooperative enhanced flotation separation using the fluid cooperative enhanced flotation separation device according to claim 1, characterized in that it comprises the following steps:

a. First, close the tailings pipe (19), and feed the initial slurry after mixing into the feed distributor (4) from the feed distributor inlet (A), and spray it through the nozzle of the feed distributor (4). In the flotation separation releaser (5), the initial slurry is diffused by the sieve plate (8) under the action of gravity and then fed into the conical deflector, and then passes through the conical deflector and the flotation release releaser (5) barrel The slurry flow channel between the walls flows into the middle ore pipe (10), and is fed into the slurry distribution pipe (11) through the circulating pump (1);

b. The slurry in the slurry distribution (11) is fed into the cylinder through the impinging stream mineralization tube (13) and the cross-flow mineralization tube (14) and generates a swirling flow in different directions in the cylinder, and passes through the microbubble generator (12) The compressed air is mixed into the slurry to realize the forced mixing and mineralization of particles and microbubbles in the turbulent mineralization generator (2), and the mixed and mineralized slurry is forced to pass through the slurry jet at the bottom of the turbulent mineralization generator (2) The tube (15) feeds into the conical deflector in the flotation separation releaser (5);

Part of the slurry carrying difficult-to-float particles enters the slurry flow channel between the cone-shaped deflector and the flotation separator release (5) from the gap of the cone-shaped deflector, and finally enters the Zhongmine tailings separator to open the tailings. Pipe (19), part of the slurry that enters the tailings separator of Zhongkuang Mine is used as tailings and is discharged from the flotation separation releaser (5) through the tailings tube outlet (B) of the tailings pipe (19); The ore pipe (10) is fed into the circulating pump (1) to continue to circulate, so as to realize circulating separation, and at the same time strengthen the suspension of coarse particles and increase the load of flotation bubbles;

Part of the ore slurry carrying easy-floating particles is adhered to by the air bubbles, and then under the action of the counterattack plate (18) and the vertical guide plate (9) in the cone deflector, the lifting speed of the mineralized air bubbles is increased, and the easy-floating particles are accompanied by the air bubbles. Float and filter out when passing through the sieve plate (8). After the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate (7), the concentrate on the foam tank (3) above the flotation separator (5) The concentrate pipe outlet (C) of the pipe (16) is discharged, and the remaining particles remain in the flotation separation releaser (5) together with the slurry;

c. The easy-floating particles in the slurry rise and float rapidly. After the entrained impurity mineral particles are cleaned by the rectangular ultrasonic vibration plate (7), the concentrate on the foam tank (3) above the flotation releaser (5) is separated Concentrate pipe outlet (C) of pipe (16) is discharged;

d. The medium floatable particles in the slurry are rectified by the sieve plate (8) in the flotation separation releaser (5) to avoid the violent slurry disturbance in the flotation separation releaser (5) causing the mineralized particles to fall from the bubbles. After falling off, the entrained impurity mineral particles are cleaned by the oscillating flow of the rectangular ultrasonic vibration plate (7), and then discharged from the concentrate pipe (16) on the foam tank (3) above the flotation separation release device (5).
The fluid synergistic enhanced flotation separation method according to claim 1, wherein the compressed air is sent into the impinging stream mineralization tube (13) and the cross-flow mineralization tube (14) through the microbubble generator (12), The forced mixing and mineralization of particles and microbubbles is realized in the turbulent mineralization generator (2), which provides guarantee for subsequent flotation separation.