CN210146238U - Mixed separation system based on fluid intensification - Google Patents
Mixed separation system based on fluid intensification Download PDFInfo
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- CN210146238U CN210146238U CN201920605937.XU CN201920605937U CN210146238U CN 210146238 U CN210146238 U CN 210146238U CN 201920605937 U CN201920605937 U CN 201920605937U CN 210146238 U CN210146238 U CN 210146238U
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Abstract
A mixing and separating system based on fluid enhancement is suitable for mineral separation. The system comprises a forced mixing tempering system, a turbulent mineralization reaction system, a circular flow flotation separation system and a centrifugal flotation separation system; the forced mixing and tempering system is connected with the forced mixing and tempering device and is also connected with the turbulent mineralization reaction system through a pipeline, the turbulent mineralization reaction system is connected with the circular flow flotation separation system through a pipeline, the bottom of the circular flow flotation separation system is connected with the forced mixing and tempering device through a pipeline, the circular flow flotation separation system is connected with the centrifugal flotation separation system through a pipeline, and the centrifugal flotation separation system is connected with the circular flow flotation separation system through a pipeline. The method has simple steps and good use effect, and improves the mixing and separating efficiency and capacity of the difficult-to-float mineral particles through the reasonable design of the mixing and separating device structure and the flow process of the mixing and separating fluid and the reasonable design of the local ore pulp circulation and the system ore pulp circulation.
Description
Technical Field
The utility model relates to a mixed piece-rate system based on fluid is reinforceed, the mixed piece-rate system based on fluid is reinforceed that is particularly useful for among the coal mine processing to mineral particle or coal slime separation use.
Background
The mineral flotation process is a typical flow process, and relates to the processes of adsorption of particles and medicaments, mineralization of the particles and bubbles, separation of mineralized bubbles and the like, and the essence of the process is a mixing separation process, and the action of fluid is always carried out throughout the process. As ore is depleted and its separation size is refined, the impact of the beneficiation process (or hydrodynamic process) in addition to the process and chemicals becomes increasingly apparent. The flotation needs to be added with chemicals, and simultaneously needs energy input. The more difficult the ore is to be sorted, the finer the particle size is, the more energy is required, which requires that the energy injection is continuously enhanced along with the continuous sorting process, but currently, there is no research and related technology for systematically enhancing the mineral mixing and separating process from the fluid flow perspective, such as the response mechanism of particles, medicaments, bubbles to the fluid environment, the interaction between particles, bubbles and medicaments in different fluid environments, and the like, and particularly relates to the traditional pulp conditioning process before flotation, the flotation mineralization process, the flotation separation process, and the like. Therefore, there is a need for a system to construct a fluid-adaptive based hybrid separation process from a fluid flow perspective to enhance the efficiency and capacity of mineral particle (or coal slurry) separation.
Disclosure of Invention
The technical problem is as follows: aiming at the technical problem, the mixing and separating system based on fluid reinforcement is simple in structure and good in separating effect.
The technical scheme is as follows: in order to achieve the technical purpose, the utility model discloses a mix separation system based on fluid intensification, including forced mix quenching and tempering system, torrent mineralization reaction system, circulation flotation separation system and centrifugal flotation separation system, forced mix quenching and tempering system includes forced mix quenching and tempering ware and circulating pump, and forced mix quenching and tempering ware is the tubular structure, and the barrel periphery is provided with a plurality of injection striking pipes and a plurality of injection cross flow pipe, and barrel upper portion circulation ore pulp export is through the pipeline access distributing groove entry for the circulating pump, and the distributing groove is connected with the pipeline between injection striking pipe and the injection cross flow pipe, and barrel upper portion quenching and tempering ore pulp export is through pipeline access torrent mineralization reactor; the turbulent mineralization reaction system comprises a turbulent mineralization reaction system device with a cylindrical structure, wherein a plurality of cross-flow pre-mineralization pipes, a plurality of impinging flow pre-mineralization pipes and a plurality of first micro-bubble generators are arranged at the periphery of the cylinder, vortex generators are arranged in the cylinder, and the turbulent mineralization reactor is connected with the circular flow flotation separator through a pipeline; the circulation flotation separation system comprises a circulation flotation separator with a cylindrical structure, and is provided with a jet flow divider, a feeder, an ore pulp distributor and a circulation generator, wherein a middling outlet of the circulation flotation separator is connected with a feed inlet of the forced mixing conditioner through a pipeline, and a foam tank outlet of the circulation flotation separator is connected with a centrifugal flotation separator through a pipeline; the centrifugal flotation separation system comprises a centrifugal flotation separator with a cylindrical structure, and is provided with a stirring transmission mechanism, a forced circulation centrifugal mineralization generator and a gas dispersion box, wherein a second microbubble generator is arranged on the gas dispersion box, and a foam outlet of the centrifugal flotation separator is connected with a feeder of the circular flow flotation separator through a pipeline.
The utility model discloses mix piece-rate system based on fluid is reinforceed, its characterized in that: the system comprises a forced mixing and tempering system, a turbulent current mineralization reaction system, a circular current flotation separation system and a centrifugal flotation separation system, wherein the forced mixing and tempering system is provided with a circular ore pulp outlet which is connected with an inlet of a distribution groove of the forced mixing and tempering device through a circulating pump, the tempered ore pulp outlet is connected with a feed inlet of a turbulent current mineralization reactor arranged in the turbulent current mineralization reaction system through a pipeline, a discharge port of the turbulent current mineralization reactor arranged in the turbulent current mineralization reaction system is connected with a feed inlet of a jet flow divider arranged in the circular current flotation separation system through a pipeline, a middling outlet arranged at the bottom of the circular current flotation separation system is connected with a feed inlet of the forced mixing and tempering device through a pipeline, a tailing outlet of the circular current flotation separation system is connected with a feed inlet of a centrifugal flotation separator arranged in the centrifugal flotation separation system through a, a foam outlet of a centrifugal flotation separator arranged in the centrifugal flotation separation system is connected with a feed inlet of a feeder arranged in the circulation flotation separation system through a pipeline;
the forced mixing and tempering system comprises a cylindrical forced mixing and tempering device, a tempered ore pulp outlet and a circulating ore pulp outlet are respectively arranged at the top of the forced mixing and tempering device, the forced mixing and tempering device is provided with an ore pulp disperser at the outer side, the ore pulp disperser is provided with a plurality of dispersing pipelines around the forced mixing and tempering device, a plurality of injection pipes are arranged between the dispersing pipelines and the forced mixing and tempering device for injecting ore pulp into the forced mixing and tempering device, and the ore pulp generates shearing force in the forced mixing and tempering device so as to enhance the mineralization effect of the ore pulp;
the turbulent mineralization reaction system comprises a cylindrical turbulent mineralization reactor, a discharge port of the turbulent mineralization reactor is arranged at the top of the turbulent mineralization reactor, the bottom of the turbulent mineralization reactor is provided with an ore pulp disperser, the ore pulp disperser is provided with a plurality of dispersing pipelines surrounding the turbulent mineralization reactor, and a plurality of mineralization pipes are respectively arranged between the dispersing pipelines and the turbulent mineralization reactor;
the circulation flotation separation system comprises a circulation flotation separator, the circulation flotation separator is provided with a circulation flotation separator foam groove arranged at the top, the circulation flotation separator foam groove is arranged at the lowest part of the circulation flotation separator foam groove, a feeder is arranged at the circular outlet at the top of the circulation flotation separator foam groove, a feeder inlet is arranged on the feeder, the circulation flotation separator is provided with an annular ring flow generator jet splitter arranged at the bottom, a middling tailing separator is arranged in the ring flow generator jet splitter (8), a middling outlet and a circulation flotation separator tailing outlet are arranged on the middling tailing separator, a jet splitter is arranged above the circulation flotation separator, the jet splitter inlet is arranged on the jet splitter, and the jet splitter is mutually connected with the ring flow generator jet splitter through a plurality of pipelines, the jet splitter of the ring flow generator is provided with a plurality of ring jet holes;
the centrifugal flotation separation system comprises a centrifugal flotation separator, a centrifugal flotation separator foam tank is arranged at the top of the centrifugal flotation separator, a centrifugal flotation separator foam outlet is arranged at the lowest position of the centrifugal flotation separator foam tank, a stirring transmission mechanism is arranged at the top of the centrifugal flotation separator foam tank, a centrifugal flotation separator feed inlet is arranged at one side of the centrifugal flotation separator and extends into the centrifugal flotation separator through a pipeline, a gas dispersion box is arranged at the bottom of the centrifugal flotation separator, a centrifugal flotation separator tailing outlet and a second micro-bubble generator are arranged on the gas dispersion box, a forced circulation centrifugal mineralization generator is arranged in the centrifugal flotation separator and close to the bottom, and comprises an upper guide cylinder, a propelling wheel, a dispersion stator, a centrifugal mineralization wheel and a lower guide device which is arranged below the centrifugal mineralization wheel and fixed at the bottom of the tank body, the lower guide device comprises a guide inverted cone, a discharge bottom plate and a lower guide cylinder arranged in the middle of the discharge bottom plate; the dispersing stator comprises a mineralizing cover plate and an ore pulp dispersing plate, and the ore pulp dispersing plate is of a rectangular structure and is arranged below the mineralizing cover plate; the specific discharging bottom plate is arranged in the centrifugal flotation separator and close to the bottom, a lower guide cylinder is arranged at an opening in the center of the discharging bottom plate, a plurality of through holes are formed in the discharging bottom plate around the center, a gap is reserved between the discharging bottom plate and the outer wall of the centrifugal flotation separator, a guide back cone is arranged on the discharging bottom plate, a plurality of ore pulp dispersion plates which are vertically arranged in a direction of the center of a rectangular structure are arranged in the guide back cone, a mineralization cover plate is arranged on each ore pulp dispersion plate and returns to the country, an upper guide cylinder is arranged at the center of the mineralization cover plate, a propulsion wheel is arranged in the upper guide cylinder, a stirring transmission mechanism extends into a space between the mineralization cover plate and the discharging bottom plate through the center of the upper guide cylinder and the mineralization cover plate through a transmission shaft, a centrifugal mineralization wheel is arranged in the space between the mineralization cover plate and the.
The forced mixing conditioner is provided with a plurality of alternately arranged jet impact pipes and jet cross flow pipes between the forced mixing conditioner and the jet impact pipes.
The multiple mineralization pipes arranged between the dispersion pipeline and the turbulent mineralization reactor comprise cross-flow pre-mineralization pipes and impact-flow pre-mineralization pipes which are alternately arranged, wherein the cross-flow pre-mineralization pipes and the impact-flow pre-mineralization pipes are both provided with first micro-bubble generators, and the turbulent mineralization reactor is provided with vortex generators with a plurality of convex structures on the inner wall.
The outer side of the jet flow divider of the ring flow generator is provided with a ring plate, a gap is reserved between the ring plate and the outer wall on the bottom plate, a plurality of ring flow jet cavities are arranged on the jet flow divider (8) of the ring flow generator, a ring flow is generated through jet holes on the ring flow jet cavities, an outer cylinder wall is arranged between the inner ring of the jet flow divider of the ring flow generator and the middling tailings separator, and the outlet direction of the jet cavities is along the inner wall of the ring plate; a feeding hole is arranged above the circulation jet cavity and is connected with an outlet pipe of the jet splitter; the middle of the bottom plate is provided with an ore pulp distributor injection splitter which is of a cylindrical structure, and the wall of the outer cylinder is 0.5-1.0m higher than the bottom plate.
Has the advantages that:
the utility model discloses use multiple turbulent flow field to strengthen mixing separation process as the access point, through mixing separator structure and mixing separation process's rational design to and local ore pulp circulation and the endless rational design of system ore pulp, improve the mixed separation efficiency and the ability to difficult mineral granule that floats, provide one kind from the technique that the fluid flow angle system strengthens mineral mixed separation. The solid-liquid two-phase system strengthens the adsorption of the medicament on the surfaces of mineral particles under the action of high-speed impact flow and forced shearing cross flow in the forced mixing conditioner, and further improves the hydrophobicity of the surfaces of the particles through multiple times of circular mixing conditioning of ore pulp in the conditioner; the gas-liquid-solid three-phase system after tempering realizes the efficient collision of fine particles and bubbles in a forced turbulent environment mainly comprising high-speed impinging stream and forced shear stream in a turbulent mineralization reactor, and improves the mineralization effect; the high-efficiency mineralized three-phase system is sequentially separated by a circulation flotation separator and a centrifugal flotation separator, the middling product in the circulation flotation separator returns to a forced mixing conditioner, the mixing and separation process is repeated, a forced circulation system of the centrifugal flotation separator further strengthens the flotation and recovery of the particles difficult to float, and the foam product separated by the centrifugal flotation separator returns to the circulation flotation separator for repeated separation. Through the reasonable design of the structure of the mixing and separating device and the flowing process of the mixing and separating fluid and the reasonable design of the local ore pulp circulation and the system ore pulp circulation, the mixing and separating efficiency and the mixing and separating capacity of the difficult-to-float mineral particles are improved.
Drawings
Fig. 1 is a schematic view of the mixing and separating system based on fluid intensification of the present invention.
FIG. 2 is a schematic structural view of the forced mixing conditioner of the present invention.
Fig. 3 is a schematic structural diagram of the turbulent mineralization reactor of the present invention.
Fig. 4 is a schematic structural diagram of the ring flow generator of the present invention.
Fig. 5 is a schematic structural view of the forced circulation centrifugal mineralization generator of the present invention.
In the figure: 1-forced mixing and tempering system, 2-turbulent mineralization reaction system, 3-circular flow flotation separation system, 4-centrifugal flotation separation system, 5-forced mixing and tempering device, 6-circulating pump, 7-turbulent mineralization reactor, 8-jet flow divider, 9-feeder, 10-circular flow flotation separator, 11-pulp distributor, 12-circular flow generator, 13-centrifugal flotation separator, 14-forced circulation centrifugal mineralization generator, 15-second micro bubble generator, 16-stirring transmission mechanism, 17-gas dispersion box, 18-jet impact pipe, 19-jet cross flow pipe, 20-cross flow pre-mineralization pipe, 21-impact flow pre-mineralization pipe, 22-first micro bubble generator, 23-vortex generator, 24-bottom plate, 25-outer cylinder wall, 26-circular flow plate, 27-circular flow jet cavity, 28-guide inverted cone, 29-lower guide cylinder, 30-propulsion wheel, 31-pulp dispersing plate, 32-upper guide cylinder, 33-mineralizing cover plate, 34-centrifugal mineralizing wheel, 35-discharging bottom plate, A-forced mixing conditioner feeding port, B-conditioned pulp outlet, C-circulating pulp outlet, D-forced mixing conditioner distributing groove inlet, E-turbulent mineralizing reactor feeding port, F-turbulent mineralizing reactor discharging port, G-jet splitter feeding port, H-feeder feeding port, I-circular flow flotation separator foam groove outlet, J-middling outlet, K-circular flow flotation separator tailing outlet, L-centrifugal flotation separator foam outlet, M-centrifugal flotation separator feeding port and N-centrifugal flotation separator tailing outlet.
Detailed Description
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
as shown in figure 1, the utility model discloses a mixed separation system based on fluid intensification, include the forced mixed quenching and tempering system 1 through the tube coupling, torrent mineralization reaction system 2, circulation flotation separation system 3 and centrifugal flotation separation system 4, wherein circulation ore pulp export C of forced mixed quenching and tempering system 1 is connected with forced mixed quenching and tempering ware distributing groove entry D tube coupling through circulating pump 6, tempered ore pulp export B is connected with torrent mineralization reactor feed inlet E of torrent mineralization reaction system 2 through the pipeline, torrent mineralization reactor discharge gate F of torrent mineralization reaction system 2 is connected with jet flow divider feed inlet G of circulation flotation separation system 3 through the pipeline, middlings export J of circulation flotation separation system 3 bottom is connected with forced mixed quenching and tempering ware feed inlet A through the pipeline, circulation flotation separator tailing export K of circulation flotation separation system 3 is connected with centrifugal flotation separator feed inlet G of centrifugal flotation separation system 4 through the pipeline M, a foam outlet L of a centrifugal flotation separator of the centrifugal flotation separation system 4 is connected with a feeder feed inlet H of the circulation flotation separation system 3 through a pipeline;
the forced mixing and tempering system 1 comprises a cylindrical forced mixing and tempering device 5, a tempered ore pulp outlet B and a circulating ore pulp outlet C are respectively arranged at the top of the forced mixing and tempering device 5, an ore pulp disperser is arranged outside the forced mixing and tempering device 5, a plurality of dispersing pipelines are arranged on the ore pulp disperser around the forced mixing and tempering device 5, a plurality of spraying pipes are arranged between the dispersing pipelines and the forced mixing and tempering device 5 and used for spraying ore pulp into the forced mixing and tempering device 5, and the ore pulp generates shearing force in the forced mixing and tempering device 5 so as to enhance the mineralization effect of the ore pulp; as shown in fig. 2, the plurality of injection pipes arranged between the forced mixing conditioner 5 and the plurality of dispersion pipes are respectively an injection impact pipe 18 and an injection cross flow pipe 19 which are alternately arranged;
the turbulent mineralization reaction system 2 comprises a cylindrical turbulent mineralization reactor 7, a discharge port F of the turbulent mineralization reactor is arranged at the top of the turbulent mineralization reactor 7, an ore pulp disperser is arranged at the bottom of the turbulent mineralization reactor 7, a plurality of dispersing pipelines are arranged on the ore pulp disperser and surround the turbulent mineralization reactor 7, and a plurality of mineralization pipes are respectively arranged between the dispersing pipelines and the turbulent mineralization reactor 7, as shown in fig. 3, the mineralization pipes comprise cross-flow pre-mineralization pipes 20 and impact-flow pre-mineralization pipes 21 which are alternately arranged, wherein the cross-flow pre-mineralization pipes 20 and the impact-flow pre-mineralization pipes 21 are both provided with first microbubble generators 22, and the inner wall of the turbulent mineralization reactor 7 is provided with a plurality of vortex generators 23 with convex structures;
the circulation flotation separation system 3 comprises a circulation flotation separator 10, a circulation flotation separator foam groove is arranged at the top of the circulation flotation separator 10, a circulation flotation separator foam groove I is arranged at the lowest position of the circulation flotation separator foam groove, a feeder 9 is arranged at the circular outlet of the top of the circulation flotation separator foam groove, a feeder inlet H is arranged on the feeder 9, an annular circulation generator 12 is arranged at the bottom of the circulation flotation separator 10, a middling tailing separator is arranged in the annular circulation generator 12, a middling outlet J and a circulation flotation separator tailing outlet K are arranged on the middling tailing separator, a jet flow divider 8 is arranged above the circulation flotation separator 10, a jet flow divider inlet G is arranged on the jet flow divider 8, the jet flow divider 8 is mutually connected with the circulation flow generator 12 through a plurality of branch pipelines, and a plurality of circulation jet holes are arranged on the annular circulation flotation separator 12; as shown in fig. 4, a ring plate 26 is arranged outside the ring flow generator 12, a gap is left between the ring plate 26 and the outer wall on the bottom plate 24, a plurality of ring flow spraying cavities 27 are arranged on the ring flow generator 12, a ring flow is generated through spray holes on the ring flow spraying cavities 27, an outer cylinder wall 25 is arranged between the inner ring of the ring flow generator 12 and the middling tailings classifier, and the outlet direction of the spraying cavities is along the inner wall of the ring plate; a feeding hole is arranged above the circular flow injection cavity 27 and is connected with an outlet pipe of the injection splitter 8; the middle of the bottom plate 24 is provided with an ore pulp distributor 11, the ore pulp distributor 11 is of a cylindrical structure, and the outer cylinder wall 25 is 240.5-1.0m higher than the bottom plate;
as shown in FIG. 5, the centrifugal flotation separation system 4 includes a centrifugal flotation separator 13, a froth tank of the centrifugal flotation separator is disposed on the top of the centrifugal flotation separator 13, a froth outlet L of the centrifugal flotation separator is disposed at the lowest position of the froth tank of the centrifugal flotation separator, a stirring transmission mechanism 16 is disposed on the top of the froth tank of the centrifugal flotation separator, a feed inlet M of the centrifugal flotation separator is disposed on one side of the centrifugal flotation separator 13 and extends into the centrifugal flotation separator 13 through a pipeline, a gas dispersion tank 17 is disposed at the bottom of the centrifugal flotation separator 13, a tailings outlet N of the centrifugal flotation separator and a second microbubble generator 15 are disposed on the gas dispersion tank 17, a forced circulation centrifugal mineralization generator 14 is disposed near the bottom of the centrifugal flotation separator 13, and the forced circulation centrifugal mineralization generator 14 includes an upper guide cylinder 32, a propulsion wheel 30, a dispersion stator, The centrifugal mineralization wheel 34 and a lower flow guide device which is arranged below the centrifugal mineralization wheel 34 and fixed at the bottom of the tank body, wherein the lower flow guide device comprises a flow guide inverted cone 28, a discharge bottom plate 35 and a lower flow guide cylinder 29 arranged in the middle of the discharge bottom plate 35; the dispersing stator comprises a mineralizing cover plate 33 and an ore pulp dispersing plate 31, and the ore pulp dispersing plate 31 is of a rectangular structure and is arranged below the mineralizing cover plate 33; the specific discharge bottom plate 35 is arranged in the centrifugal flotation separator 13 and close to the bottom, a lower guide cylinder 29 is arranged at an opening at the center of the discharge bottom plate 35, a plurality of through holes are formed around the center of the discharge bottom plate 35, a gap is reserved between the discharge bottom plate 35 and the outer wall of the centrifugal flotation separator 13, a guide inverted cone 28 is arranged on the discharge bottom plate 35, a plurality of ore pulp dispersion plates 31 which are vertically arranged with rectangular structures pointing to the center of a circle are arranged in the guide inverted cone 28, a mineralization cover plate 33 is arranged in the world where the ore pulp dispersion plates 31 return, an upper guide cylinder 32 is arranged at the center of the mineralization cover plate 33, a propulsion wheel 30 is arranged in the upper guide cylinder 32, wherein a stirring transmission mechanism 16 extends into a space between the mineralization cover plate 33 and the discharge bottom plate 35 through the centers of the upper guide cylinder 32 and the mineralization cover plate 33 through a transmission shaft, and a centrifugal wheel 34 is arranged in the space, discharge holes are arranged on the mineralizing cover plate 33 and the discharge bottom plate 35.
A mixing and separating method based on fluid enhancement comprises the following steps:
a. firstly, ore pulp and medicament are fed into a forced mixing conditioner 5 through a feeding port A of the forced mixing conditioner by a pipeline, then flow out of a circulating ore pulp outlet C and are fed into a distribution groove inlet D of the forced mixing conditioner by a circulating pump 6, an ore pulp and medicament solid-liquid two-phase system is injected into the forced mixing conditioner 5 at a high speed through injection impact 18 and injection cross flow 19, the adsorption of the medicament on the surfaces of mineral particles of the ore pulp is enhanced under the action of high-speed impact flow and forced shearing cross flow in the injection process of the ore pulp and the medicament, the circulating ore pulp realizes multiple circulating mixing conditioning inside the system through the circulating pump 6, and the conditioned ore pulp is discharged through a conditioning ore pulp outlet B and is fed into a turbulence mineralization reactor 7 through a pipeline;
b. the tempered ore pulp enters an ore pulp disperser from a feed inlet E of a turbulent mineralization reactor, the turbulent mineralization reaction 7 is fed through a cross flow pre-mineralization pipe 20 and an impinging flow pre-mineralization pipe 21 which are alternately arranged on a dispersion pipeline, air is mixed into the ore pulp through a first micro-bubble generator 22 while the turbulent mineralization reaction 7 is fed, and the air, the ore pulp and coal particles in the ore pulp in the turbulent mineralization reactor 7 are subjected to high-efficiency collision with bubbles in a forced turbulent environment mainly based on high-speed impinging flow and forced shear flow, so that the fine particles are discharged from a discharge outlet F of the turbulent mineralization reactor after the efficiency and the capability of the flotation mineralization reaction are enhanced and are fed into a feed inlet G of a jet flow divider through a pipeline;
c. ore pulp is fed into the jet flow divider 8 through a feed inlet G of the jet flow divider, and is fed into the annular flow generator 12 from a plurality of pipelines through the jet flow divider 8, the ore pulp is sprayed out from an annular flow spraying cavity 27 of the annular flow generator 12 to form an annular flow between an outer cylinder wall 25 and an annular plate 26, so that the flotation recovery effect on the hard-to-float particles is further enhanced, a bottom flow product separated by the centrifugal flotation separator 13 is discharged from a tailing outlet K of the annular flow flotation separator as final tailings, separated middlings are discharged from a middlings outlet J and are fed into a feed inlet A of the forced mixer conditioner through a pipeline, the discharged tailing ore pulp is fed into a feed inlet M of the centrifugal flotation separator through a pipeline, and overflowing foam is collected by a foam tank of the annular flow flotation separator at the top of the annular flow flotation separator 10 and is discharged as a concentrate product from a foam tank outlet I;
d. the tailing pulp is fed into the centrifugal flotation separator 13 from the feed inlet M of the centrifugal flotation separator, enters the upper guide cylinder 32, and pushes the propelling wheel 30 to enter the space between the mineralizing cover plate 33 and the discharge bottom plate 35, at the moment, the centrifugal mineralizing wheel 34 in the space is driven to rotate by the stirring transmission mechanism 16 through the transmission shaft, so that the tailing pulp continuously generates ascending buoyancy in the tailing pulp along the rectangular pulp dispersion plate 31 and the guide inverted cone 28 under the action of the centrifugal mineralizing wheel 34, a foam layer is generated at the top of the ascending tailing pulp, the ascending tailing pulp is finally discharged from the foam outlet L of the centrifugal flotation separator of the foam tank of the centrifugal flotation separator, and is fed into the feed inlet H of the circulating flotation separator through a pipeline for repeated separation, the tailing pulp of the centrifugal flotation separator 13 near the discharge bottom plate 35 is difficult-to-select particles, the tailing pulp flows out through the discharge hole on the discharge bottom plate 35, and a part of the difficult-to-select particles is discharged from the, the other part of the refractory particles are sucked into the space of the centrifugal mineralization wheel 35 through the lower guide cylinder 29 in the middle of the discharge bottom plate 35 under the action of the centrifugal azole absorption force of the centrifugal mineralization wheel 34, and the centrifugal force generated when the centrifugal mineralization wheel 19 rotates continuously generates buoyancy for the tailing pulp, and the refractory particles are dispersed in the pulp to be continuously circulated.
Claims (4)
1. A mixing and separating system based on fluid intensification, characterized in that: the system comprises a forced mixing and tempering system (1), a turbulence mineralization reaction system (2), a circulation flotation separation system (3) and a centrifugal flotation separation system (4) which are connected through pipelines, wherein a circulation ore pulp outlet (C) of the forced mixing and tempering system (1) is connected with an inlet (D) of a distribution tank of the forced mixing and tempering device through a circulation pump (6) through a pipeline, a tempering ore pulp outlet (B) is connected with a feeding port (E) of a turbulence mineralization reactor of the turbulence mineralization reaction system (2) through a pipeline, a discharge port (F) of the turbulence mineralization reactor of the turbulence mineralization reaction system (2) is connected with a feeding port (G) of a jet flow divider of the circulation flotation separation system (3) through a pipeline, a middling outlet (J) at the bottom of the circulation flotation separation system (3) is connected with a feeding port (A) of the forced mixing and tempering device through a pipeline, and a tailings outlet (K) of the circulation flotation separator of the circulation flotation separation system (3) A centrifugal flotation separator feed inlet (M) of the separation system (4) is connected, and a centrifugal flotation separator foam outlet (L) of the centrifugal flotation separation system (4) is connected with a feeder feed inlet (H) of the circulation flotation separation system (3) through a pipeline;
the forced mixing and tempering system (1) comprises a cylindrical forced mixing and tempering device (5), a tempered ore pulp outlet (B) and a circulating ore pulp outlet (C) are respectively arranged at the top of the forced mixing and tempering device (5), an ore pulp disperser is arranged on the outer side of the forced mixing and tempering device (5), a plurality of dispersing pipelines are arranged on the ore pulp disperser around the forced mixing and tempering device (5), a plurality of injection pipes are arranged between the dispersing pipelines and the forced mixing and tempering device (5) and used for injecting ore pulp into the forced mixing and tempering device (5), and the ore pulp generates shearing force in the forced mixing and tempering device (5) so as to enhance the mineralization effect of the ore pulp;
the turbulent mineralization reaction system (2) comprises a cylindrical turbulent mineralization reactor (7), a discharge port (F) of the turbulent mineralization reactor is arranged at the top of the turbulent mineralization reactor (7), an ore pulp disperser is arranged at the bottom of the turbulent mineralization reactor (7), a plurality of dispersion pipelines are arranged on the ore pulp disperser and surround the turbulent mineralization reactor (7), and a plurality of mineralization pipes are respectively arranged between the dispersion pipelines and the turbulent mineralization reactor (7);
the circulation flotation separation system (3) comprises a circulation flotation separator (10), a circulation flotation separator foam groove is arranged at the top of the circulation flotation separator (10), a circulation flotation separator foam groove (I) is arranged at the lowest position of the circulation flotation separator foam groove, a feeder (9) is arranged at the circular position of the top of the circulation flotation separator foam groove, a feeder feed inlet (H) is arranged on the feeder (9), an annular circulation generator (12) is arranged at the bottom of the circulation flotation separator (10), a middling tailing separator is arranged in the annular generator (12), a middling outlet (J) and a circulation flotation separator tailing outlet (K) are arranged on the middling tailing separator, a jet flow divider (8) is arranged above the circulation flotation separator (10), a jet flow divider feed inlet (G) is arranged on the jet flow divider (8), and the jet flow divider (8) is connected with the annular generator (12) through a plurality of pipelines, the annular flow generator (12) is provided with a plurality of annular flow jet holes;
the centrifugal flotation separation system (4) comprises a centrifugal flotation separator (13), a centrifugal flotation separator foam tank is arranged at the top of the centrifugal flotation separator (13), a centrifugal flotation separator foam outlet (L) is arranged at the lowest position of the centrifugal flotation separator foam tank, a stirring transmission mechanism (16) is arranged at the top of the centrifugal flotation separator foam tank, a centrifugal flotation separator feed inlet (M) is arranged on one side of the centrifugal flotation separator (13) and extends into the centrifugal flotation separator (13) through a pipeline, a gas dispersion box (17) is arranged at the bottom of the centrifugal flotation separator (13), a centrifugal flotation separator tailings outlet (N) and a second microbubble generator (15) are arranged on the gas dispersion box (17), a forced circulation centrifugal mineralization generator (14) is arranged near the bottom in the centrifugal flotation separator (13), and the forced circulation centrifugal mineralization centrifugal generator (14) comprises an upper guide flow cylinder (32), The device comprises a propelling wheel (30), a dispersing stator, a centrifugal mineralization wheel (34) and a lower flow guide device which is arranged below the centrifugal mineralization wheel (34) and fixed at the bottom of a tank body, wherein the lower flow guide device comprises a flow guide inverted cone (28), a discharge bottom plate (35) and a lower flow guide cylinder (29) arranged in the middle of the discharge bottom plate (35); the dispersing stator comprises a mineralizing cover plate (33) and an ore pulp dispersing plate (31), wherein the ore pulp dispersing plate (31) is of a rectangular structure and is arranged below the mineralizing cover plate (33); the specific discharge bottom plate (35) is arranged in a centrifugal flotation separator (13) and close to the bottom, a lower guide cylinder (29) is arranged at an opening at the center of the discharge bottom plate (35), a plurality of through holes are formed around the center of the discharge bottom plate (35), a gap is reserved between the discharge bottom plate (35) and the outer wall of the centrifugal flotation separator (13), a guide inverted cone (28) is arranged on the discharge bottom plate (35), a plurality of ore pulp dispersion plates (31) which are vertically arranged in a rectangular structure and point to the center of a circle are arranged in the guide inverted cone (28), a mineralization cover plate (33) is arranged in the vertical position of each ore pulp dispersion plate (31), an upper guide cylinder (32) is arranged at the center of the mineralization cover plate (33), a propulsion wheel (30) is arranged in the upper guide cylinder (32), and a mineralization transmission mechanism (16) extends into a space between the mineralization cover plate (33) and the discharge bottom plate (35) through transmission shafts of the upper guide cylinder (32) and the mineralization, the end of the transmission shaft is provided with a centrifugal mineralization wheel (34) in the space between the mineralization cover plate (33) and the discharge bottom plate (35), and the mineralization cover plate (33) and the discharge bottom plate (35) are provided with discharge holes.
2. The fluid enhancement based mixing separation system according to claim 1, wherein: the multiple injection pipes arranged between the forced mixing conditioner (5) and the multiple dispersion pipelines are respectively an injection impact pipe (18) and an injection cross flow pipe (19) which are alternately arranged.
3. The fluid enhancement based mixing separation system according to claim 1, wherein: the multiple mineralization pipes arranged between the dispersion pipeline and the turbulent mineralization reactor (7) comprise cross-flow pre-mineralization pipes (20) and impact-flow pre-mineralization pipes (21) which are alternately arranged, wherein the cross-flow pre-mineralization pipes (20) and the impact-flow pre-mineralization pipes (21) are both provided with first micro-bubble generators (22), and the inner wall of the turbulent mineralization reactor (7) is provided with a plurality of vortex generators (23) with convex structures.
4. The fluid enhancement based mixing separation system according to claim 1, wherein: the outer side of the ring flow generator (12) is provided with a ring plate (26), a gap is reserved between the ring plate (26) and the outer wall on the bottom plate (24), the ring flow generator (12) is provided with a plurality of ring flow spraying cavities (27), ring flow is generated through spray holes in the ring flow spraying cavities (27), an outer cylinder wall (25) is arranged between the inner ring of the ring flow generator (12) and the middling tailing classifier, and the outlet direction of the spraying cavities is along the inner wall of the ring plate; a feed hole is arranged above the circular flow injection cavity (27) and is connected with an outlet pipe of the injection splitter (8); the middle of the bottom plate (24) is provided with an ore pulp distributor (11), the ore pulp distributor (11) is of a cylindrical structure, and the outer cylinder wall (25) is 0.5-1.0m higher than the bottom plate (24).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109967264A (en) * | 2019-04-29 | 2019-07-05 | 中国矿业大学 | A kind of hybrid separation system and method based on hydroenhancement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109967264A (en) * | 2019-04-29 | 2019-07-05 | 中国矿业大学 | A kind of hybrid separation system and method based on hydroenhancement |
| CN109967264B (en) * | 2019-04-29 | 2023-10-13 | 中国矿业大学 | Mixed separation system and method based on fluid strengthening |
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