AU2019443100A1 - Fluid-based enhanced mix and separation system and method - Google Patents

Fluid-based enhanced mix and separation system and method Download PDF

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Publication number
AU2019443100A1
AU2019443100A1 AU2019443100A AU2019443100A AU2019443100A1 AU 2019443100 A1 AU2019443100 A1 AU 2019443100A1 AU 2019443100 A AU2019443100 A AU 2019443100A AU 2019443100 A AU2019443100 A AU 2019443100A AU 2019443100 A1 AU2019443100 A1 AU 2019443100A1
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ore pulp
centrifugal
mineralization
circumfluence
disposed
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AU2019443100B2 (en
Inventor
Danlong LI
Xiaobing Li
Xin Li
Jiongtian Liu
Qingxia Liu
Lijun Wang
Xiaokang YAN
Haijun Zhang
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1418—Flotation machines using centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1456—Feed mechanisms for the slurry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1468—Discharge mechanisms for the sediments

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Cyclones (AREA)

Abstract

A fluid-based enhanced mix and separation system and method, suitable for mineral separation, and including a forced mixing and tempering system, a turbulence mineralization reaction system, a circumfluence flotation separation system and a centrifugal flotation separation system, wherein the forced mixing and tempering system and a forced mixer-temperer are connected to the turbulence mineralization reaction system via a pipe; the turbulence mineralization reaction system is connected to the circumfluence flotation separation system via a pipe; the bottom of the circumfluence flotation separation system is connected to the forced mixer-temperer; the circumfluence flotation separation system is connected to the centrifugal flotation separation system via a pipe; and the centrifugal flotation separation system is connected to the circumfluence flotation separation system via a pipe. The steps thereof are simple; the use effect is good; and with reasonable designs of a mix and separation apparatus structure and a fluid flow mix and separation process and reasonable designs of a local ore pulp circulation and a systematic ore pulp circulation, the efficiency and capability for mixing and separating difficult-to-float mineral particles are improved.

Description

FLUID-BASED ENHANCED MIX AND SEPARATION SYSTEM AND METHOD TECHNICAL FIELD
The present invention relates to a fluid-based enhanced mix and separation system and
method, and more particularly to a fluid-based enhanced mix and separation system and method
suitable for separating mineral particles or coal slurry during coal mine production.
BACKGROUND
Mineral flotation process is a typical process technology, and relates to the processes such as
adsorption of particles and reagent, mineralization of particles and bubbles, separation of
mineralized bubbles and the like. The mineral flotation process is essentially a mix and separation
process, and fluid plays an important role in the whole process. With the dilution of ore and the
refinement of separation dimensions, apart from the process and reagent, the influence of an ore
separation process (or a hydrodynamics process) becomes increasingly apparent. Flotation needs
to add reagent, and also needs to input energy. The more difficult to separate the ore is, the
smaller the particle size is, the greater the required energy is. Therefore, energy infusion is
required to be constantly enhanced with the persistence of a separation process. However, no
research on systematically enhancing the ore mix and separation process from the fluid flow
perspective is provided in the related art at present, such as the response mechanism of particles, a
reagent and bubbles to a fluid environment, the interactions between particles, bubbles and the
reagent in different fluid environments and the like. The ore mix and separation process
specifically relates to the conventional pulp mixing process before flotation, a flotation
mineralization process, a flotation separation process and the like. Therefore, it is urgent to
systematically construct a fluid-based adapted mix and separation process from the perspective of
fluid flow, so as to enhance the separation efficiency and capability of mineral particles (or coal
slurry).
SUMMARY OF THE INVENTION
Technical problem: in order to solve the above technical problem, the present invention
provides a fluid-based enhanced mix and separation system and method, the system having a simple structure and a good separation effect.
Technical solution: to achieve the above object, the fluid-based enhanced mix and separation
system includes a forced mixing and tempering system, a turbulence mineralization reaction
system, the circumfluence flotation separation system, and a centrifugal flotation separation
system, wherein the forced mixing and tempering system includes a forced mixer-temperer and a
circulation pump; the forced mixer-temperer has a cylindrical structure; a plurality of spray impact
pipes and a plurality of spray cross-flow pipes are disposed on the periphery of the cylinder; a
circulating ore pulp outlet at the upper part of the cylinder is connected to a distribution groove
inlet via a circulation pump pipe; a distribution groove is connected to the spray impact pipes and
the spray cross-flow pipes via pipes; a tempered ore pulp outlet at the upper part of the cylinder is
connected to a turbulence mineralization reactor via a pipe; the turbulence mineralization reaction
system includes a cylindrical turbulence mineralization reactor; a plurality of cross-flow
pre-mineralization pipes, a plurality of impact-flow pre-mineralization pipes, and a plurality of
first micro-bubble generators are disposed on the periphery of the cylinder; a vortex generator is
disposed in the cylinder; the turbulence mineralization reactor is connected to a circumfluence
flotation separator via a pipe; the circumfluence flotation separation system includes a cylindrical
circumfluence flotation separator, and is provided with a spray flow divider, a feeder, a ore pulp
distributor, and a circumfluence generator, wherein a middling outlet of the circumfluence
flotation separator is connected to a feed port of the forced mixer-temperer; a foam groove outlet
of the circumfluence flotation separator is connected to a centrifugal flotation separator via a pipe;
the centrifugal flotation separation system includes a cylindrical centrifugal flotation separator,
and is provided with a stirring transmission mechanism, a forced circulation and centrifugal
mineralization generator, and a gas dispersion box, wherein the gas dispersion box is provided
thereon with a second micro-bubble generator; and a foam outlet of the centrifugal flotation
separator is connected to the feeder of the circumfluence flotation separator via a pipe.
The fluid-based enhanced mix and separation system of the present invention includes a
forced mixing and tempering system, a turbulence mineralization reaction system, a circumfluence
flotation separation system and a centrifugal flotation separation system which are connected via
pipes, wherein a circulating ore pulp outlet of the forced mixing and tempering system is
connected to a distribution groove inlet of the forced mixer-temperer via a circulation pump; a
tempered ore pulp outlet is connected to a feed port of the turbulence mineralization reactor of the turbulence mineralization reaction system via a pipe; a discharge port of the turbulence mineralization reactor of the turbulence mineralization reaction system is connected to a feed port of the spray flow divider of the circumfluence flotation separation system via a pipe; an middling outlet at the bottom of the circumfluence flotation separation system is connected to a feed port of the forced mixer-temperer via a pipe; a tailing outlet of the circumfluence flotation separator of the circumfluence flotation separation system is connected to a feed port of the centrifugal flotation separator of the centrifugal flotation separation system via a pipe; and a foam outlet of the centrifugal flotation separator of the centrifugal flotation separation system is connected to a feed port of the turbulence mineralization reactor of the circumfluence flotation separation system via a pipe;
The forced mixing and tempering system includes a cylindrical forced mixer-temperer; the
tempered ore pulp outlet and the circulating ore pulp outlet are respectively disposed at the top of
the forced mixer-temperer; an ore pulp disperser is disposed on the outer side of the forced
mixer-temperer; the ore pulp disperser is provided thereon with a plurality of dispersion pipes
surrounding the forced mixer-temperer; a plurality of spray pipes are disposed between the
dispersion pipes and the forced mixer-temperer; and the spray pipes are used to spray ore pulp to
the forced mixer-temperer, and enable the ore pulp to generate a shear force in the forced
mixer-temperer, so as to enhance the mineralization effect of the ore pulp;
The turbulence mineralization reaction system includes a cylindrical turbulence
mineralization reactor; the discharge port of the turbulence mineralization reactor is disposed at
the top of the turbulence mineralization reactor; an ore pulp disperser is disposed at the bottom of
the turbulence mineralization reactor; the ore pulp disperser is provided thereon with a plurality of
dispersion pipes surrounding the turbulence mineralization reactor; and a plurality of
mineralization pipes are disposed between the dispersion pipes and the turbulence mineralization
reactor;
The circumfluence flotation separation system includes a circumfluence flotation separator; a
circumfluence flotation separator foam groove is disposed at the top of the circumfluence flotation
separator; a foam groove outlet of the circumfluence flotation separator is disposed at a lowest
position of the circumfluence flotation separator foam groove; a feeder is disposed at a circular
outlet at the top of the circumfluence flotation separator foam groove; the feed port of the
turbulence mineralization reactor is disposed on the feeder; an annular circumfluence generator is
'I disposed at the bottom of the circumfluence flotation separator; a middling and tailing separator is disposed in the circumfluence generator (8); the middling outlet and the tailing outlet of the circumfluence flotation separator are disposed on the middling and tailing separator; a spray flow divider is disposed above the circumfluence flotation separator; the feed port of the spray flow divider is disposed on the spray flow divider; the spray flow divider and the circumfluence generator are mutually connected via a plurality of pipes; and a plurality of circumfluence spray holes are disposed on the circumfluence generator; The centrifugal flotation separation system includes a centrifugal flotation separator; a centrifugal flotation separator foam groove is disposed at the top of the centrifugal flotation separator; the foam outlet of the centrifugal flotation separator is disposed at the lowest position of the centrifugal flotation separator foam groove; a stirring transmission mechanism is disposed at the top of the centrifugal flotation separator foam groove; the feed port of the centrifugal flotation separator is disposed on one side of the centrifugal flotation separator, and extends into the centrifugal flotation separator via a pipe; a gas dispersion box is disposed at the bottom of the centrifugal flotation separator; a tailing outlet of the centrifugal flotation separator and a second micro-bubble generator are disposed on the gas dispersion box; the centrifugal flotation separator is internally provided with a forced circulation and centrifugal mineralization generator adjacent to the bottom; the forced circulation and centrifugal mineralization generator includes an upper flow guide cylinder, a propulsion wheel, a dispersion stator, a centrifugal mineralization wheel, and a lower flow guide apparatus disposed under the centrifugal mineralization wheel and fixed at the bottom of a groove body; and the lower flow guide apparatus includes a flow guide back taper, a discharge bottom plate, and a lower flow guide cylinder disposed in the middle of the discharge bottom plate; The dispersion stator includes a mineralized cover plate and an ore pulp dispersion plate; the ore pulp dispersion plate has a rectangular structure, and is disposed under the mineralized cover plate; Specifically, the discharge bottom plate is disposed in the centrifugal flotation separator adjacent to the bottom; the lower flow guide cylinder is disposed in a hole in the center of the discharge bottom plate; the discharge bottom plate is provided with a plurality of through holes surrounding the center; a gap is reserved between the discharge bottom plate and an outer wall of the centrifugal flotation separator; the flow guide back taper is disposed on the discharge bottom plate; the flow guide back taper is internally provided with a plurality of ore pulp dispersion plates having a rectangular structure, pointing to the center of circle, and arranged
A vertically; the mineralized cover plate is disposed above the plurality of ore pulp dispersion plates; the upper flow guide cylinder is disposed in the center of the mineralized cover plate; the propulsion wheel is disposed in the upper flow guide cylinder, wherein the stirring transmission mechanism passes through the upper flow guide cylinder and the center of the mineralized cover plate via a transmission shaft, and then extends into a space between the mineralized cover plate and the discharge bottom plate; an end head of the transmission shaft is provided with the centrifugal mineralization wheel in the space between the mineralized cover plate and the discharge bottom plate; and discharge holes are disposed on the mineralized cover plate and the discharge bottom plate.
The plurality of spray pipes disposed between the forced mixer-temperer and the forced
mixer-temperer are respectively the spray impact pipes and the spray cross-flow pipes which are
alternately arranged.
The plurality of mineralization pipes disposed between the dispersion pipes and the
turbulence mineralization reactor include cross-flow pre-mineralization pipes and impact-flow
pre-mineralization pipes which are alternately arranged; the cross-flow pre-mineralization pipe
and the impact-flow pre-mineralization pipe are both provided thereon with a first micro-bubble
generator; and a plurality of vortex generators having a protruding structure are disposed on an
inner wall of the turbulence mineralization reactor.
An annular plate is disposed on the outer side of the circumfluence generator; a gap is
reserved between the annular plate and an outer wall and on a bottom plate; the circumfluence
generator is provided thereon with a plurality of circumfluence spray chambers, and generates a
circumfluence via spray holes on the circumfluence spray chambers; an outer cylinder wall is
disposed between an inner ring of the circumfluence generator and the middling and tailing
separator; the outlet direction of the spray chambers is along an inner wall of the annular plate; a
feed hole is disposed above the circumfluence spray chamber, and is connected to an outlet pipe of
the spray flow divider; an ore pulp distributor is disposed in the middle of the bottom plate; the
ore pulp distributor has a cylindrical structure; and the outer cylinder wall is 0.5-1.0m higher than
the bottom plate.
A fluid-based enhanced mix and separation method, including the following steps:
a, first, ore pulp and a reagent are fed to a forced mixer-temperer via a pipe from a feed port
of the forced mixer-temperer, then flow out from a circulating ore pulp outlet, and are fed via a
1Z circulation pump from a distribution groove inlet of the forced mixer-temperer; a solid-liquid two-phase system consisting of the ore pulp and the reagent is sprayed to the forced mixer-temperer at a high speed via spray impact pipes and spray cross-flow pipes; during spray, under the action of a high speed impact flow and a forcibly shearing cross flow, the enhancement reagent is adsorbed on the surfaces of the ore pulp and mineral particles, and the circulating ore pulp realizes multiple times of circulating, mixing and tempering in the system via the circulation pump; and the tempered ore pulp is discharged out from a tempered ore pulp outlet, and is fed to a turbulence mineralization reactor via a pipe; b, the tempered ore pulp enters an ore pulp disperser from a feed port of the turbulence mineralization reactor, and is fed to the turbulence mineralization reactor via cross-flow pre-mineralization pipes and impact-flow pre-mineralization pipes which are alternately arranged; while the ore pulp is fed to the turbulence mineralization reactor, air is fed and mixed with the ore pulp via a first micro-bubble generator; in the turbulence mineralization reactor, a three-phase system consisting of the air, the ore pulp, and coal particles in the ore pulp realizes efficient micro-particles and bubble impact in a forced turbulence environment formed mainly by the high speed impact flow and the forcibly shearing flow; after the flotation mineralization reaction efficiency and capability are enhanced, the three-phase system is discharged out from a discharge port of the turbulence mineralization reactor, and is fed to a feed port of the spray flow divider via a pipe; c, the ore pulp is fed to a spray flow divider via the feed port of the spray flow divider, and is fed to a circumfluence generator from a plurality of pipes via the spray flow divider; the ore pulp is sprayed out from a circumfluence spray chamber of the circumfluence generator, and forms a circumfluence between an outer cylinder wall and an annular plate, so as to further enhance the flotation recovery effect of difficult-to-float particles; an underflow product separated by a centrifugal flotation separator, as a final tailing, is discharged out from a tailing outlet of the centrifugal flotation separator; the separated middling is discharged out from a middling outlet, and is fed to the feed port of the forced mixer-temperer via a pipe; the discharged tailing ore pulp is fed to a feed port of the centrifugal flotation separator via a pipe; and a circumfluence flotation separator foam groove at the top of a centrifugal flotation separator collects overflowing foams, and discharges out the overflowing foams as a concentrate product from a centrifugal flotation separator foam groove outlet; d, the tailing ore pulp is fed to the centrifugal flotation separator from the feed port of the centrifugal flotation separator, enters an upper flow guide cylinder, and pushes a propulsion wheel to enter a space between a mineralized cover plate and a discharge bottom plate; a centrifugal mineralization wheel in the space rotates under the driving of a stirring transmission mechanism via a transmission shaft; the tailing ore pulp, under the action of the centrifugal mineralization wheel, constantly generates an uprising buoyant force in the tailing ore pulp along a rectangular ore pulp dispersion plate and a flow guide back taper; a foam layer is generated at the top of the uprising tailing ore pulp; the generated foam is finally discharged out from a foam outlet of the centrifugal flotation separator of a centrifugal flotation separator foam groove, and is fed to a feed port of the feeder of the centrifugal flotation separator for repeated separation; the tailing ore pulp adjacent to the discharge bottom plate of the centrifugal flotation separator is difficult-to-float particles, and flows out from a discharge hole on the discharge bottom plate; a part of the difficult-to-float particles are discharged out from a tailing outlet of the centrifugal flotation separator of a gas dispersion box, and the other part of the difficult-to-float particles, under the action of a centrifugal force of the centrifugal mineralization wheel, pass through a lower flow guide cylinder in the middle of the discharge bottom plate, and are sucked into a space of the centrifugal mineralization wheel; under the centrifugal force generated by the centrifugal mineralization wheel during rotation, a buoyant force is continuously generated for the tailing ore pulp, and the difficult-to-float particles are dispersed in the ore pulp for continuous circulation.
Beneficial effects:
The present invention takes an enhanced mix and separation process in multiple turbulence
fields as a breakthrough point. With reasonable designs of a mix and separation apparatus
structure and a mix and separation process and reasonable designs of a local ore pulp circulation
and a systematic ore pulp circulation, the efficiency and capability for mixing and separating
difficult-to-float mineral particles are improved. The present invention provides a systematically
enhanced mineral mix and separation technology from a fluid flow perspective. Under the action
of the high speed impact flow and the forcibly shearing cross flow in the forced mixer-temperer,
the solid-liquid two-phase system enhances the adsorption of the reagent on the surfaces of
mineral particles, and realizes multiple times of circulating, mixing and tempering in the temperer,
thereby further improving the surface hydrophobicity of the particles; the tempered
gas-liquid-solid three-phase system realizes efficient micro-particles and bubble impact in the forced turbulence environment formed mainly by the high speed impact flow and the forcibly shearing flow in the turbulence mineralization reactor, thereby improving mineralization effect; The efficiently mineralized three-phase system is separated sequentially by the circumfluence flotation separator and the centrifugal flotation separator; the middling product in the circumfluence flotation separator is returned to the forced mixer-temperer to repeat the mix and separation process; the forced circulation system of the centrifugal flotation separator further enhances the flotation recovery of the difficult-to-float particles; and the foam product separated by the centrifugal flotation separator is returned to the circumfluence flotation separator to repeat the separation. With reasonable designs of a mix and separation apparatus structure and a fluid flow mix and separation process and reasonable designs of a local ore pulp circulation and a systematic ore pulp circulation, the efficiency and capability for mixing and separating difficult-to-float mineral particles are improved.
BRIEF DESCRIPTION OF THE DRAWINGS Fig 1 is a schematic view of the fluid-based enhanced mix and separation system according to the present invention; Fig. 2 is a structural schematic view of the forced mixer-temperer according to the present invention; Fig. 3 is a structural schematic view of the turbulence mineralization reactor according to the present invention; Fig. 4 is a structural schematic view of the circumfluence generator according to the present invention; and Fig. 5 is a structural schematic view of the forced circulation and centrifugal mineralization generator according to the present invention. In the figures: 1, forced mixing and tempering system; 2, turbulence mineralization reaction system; 3, circumfluence flotation separation system; 4, centrifugal flotation separation system; 5, forced mixer-temperer; 6, circulation pump; 7, turbulence mineralization reactor; 8, spray flow divider; 9, feeder; 10, circumfluence flotation separator; 11, ore pulp distributor; 12, circumfluence generator; 13, centrifugal flotation separator; 14, forced circulation and centrifugal mineralization generator; 15, second micro-bubble generator; 16, stirring transmission mechanism; 17, gas dispersion box; 18, spray impact pipe; 19, spray cross-flow pipe; 20, cross-flow
Q 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, annular plate; 27,
circumfluence spray chamber; 28, flow guide back taper; 29, lower flow guide cylinder; 30,
propulsion wheel; 31, ore pulp dispersion plate; 32, upper flow guide cylinder; 33, mineralized
cover plate; 34, centrifugal mineralization wheel; 35, discharge bottom plate; A, feed port of the
forced mixer-temperer; B, tempered ore pulp outlet; C, circulating ore pulp outlet; D, distribution
groove inlet of the forced mixer-temperer; E, feed port of the turbulence mineralization reactor; F,
discharge port of the turbulence mineralization reactor; G, feed port of the spray flow divider; H,
feed port of the feeder; I, foam groove outlet of the circumfluence flotation separator; J, middling
outlet; K, tailing outlet of the circumfluence flotation separator; L, foam outlet of the centrifugal
flotation separator; M, feed port of the centrifugal flotation separator; N, tailing outlet of the
centrifugal flotation separator.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The preferred embodiments of the present invention will be further described in detail
hereafter in combination with the drawings.
As shown in Fig. 1, the fluid-based enhanced mix and separation system of the present
invention includes a forced mixing and tempering system 1, a turbulence mineralization reaction
system 2, a circumfluence flotation separation system 3 and a centrifugal flotation separation
system 4 which are connected via pipes, wherein a circulating ore pulp outlet C of the forced
mixing and tempering system 1 is connected to a distribution groove inlet D of the forced
mixer-temperer via a circulation pump 6; a tempered ore pulp outlet B is connected to a feed port
of the turbulence mineralization reactor E of the turbulence mineralization reaction system 2 via a
pipe; a discharge port of the turbulence mineralization reactor F of the turbulence mineralization
reaction system 2 is connected to a feed port of the spray flow divider G of the circumfluence
flotation separation system 3 via a pipe; an middling outlet J at the bottom of the circumfluence
flotation separation system 3 is connected to a feed port of the forced mixer-temperer A via a pipe;
a tailing outlet of the circumfluence flotation separator K of the circumfluence flotation separation
system 3 is connected to a feed port of the centrifugal flotation separator M of the centrifugal
flotation separation system 4 via a pipe; and a foam outlet of the centrifugal flotation separator L of the centrifugal flotation separation system 4 is connected to a feed port of the turbulence mineralization reactor H of the circumfluence flotation separation system 3 via a pipe;
The forced mixing and tempering system 1 includes a cylindrical forced mixer-temperer 5;
the tempered ore pulp outlet B and the circulating ore pulp outlet C are respectively disposed at
the top of the forced mixer-temperer 5; an ore pulp disperser is disposed on the outer side of the
forced mixer-temperer 5; the ore pulp disperser is provided thereon with a plurality of dispersion
pipes surrounding the forced mixer-temperer 5; a plurality of spray pipes are disposed between the
dispersion pipes and the forced mixer-temperer 5; and the spray pipes are used to spray ore pulp to
the forced mixer-temperer 5, and enable the ore pulp to generate a shear force in the forced
mixer-temperer 5, so as to enhance the mineralization effect of the ore pulp; As shown in Fig. 2,
the plurality of spray pipes disposed between the forced mixer-temperer 5 and the plurality of
dispersion pipes are respectively the spray impact pipes 18 and the spray cross-flow pipes 19
which are alternately arranged.
The turbulence mineralization reaction system 2 includes a cylindrical turbulence
mineralization reactor 7; the discharge port of the turbulence mineralization reactor F is disposed
at the top of the turbulence mineralization reactor 7; an ore pulp disperser is disposed at the
bottom of the turbulence mineralization reactor 7; the ore pulp disperser is provided thereon with
a plurality of dispersion pipes surrounding the turbulence mineralization reactor 7; and a plurality
of mineralization pipes are disposed between the dispersion pipes and the turbulence
mineralization reactor 7. As shown in Fig. 3, the plurality of mineralization pipes include
cross-flow pre-mineralization pipes 20 and impact-flow pre-mineralization pipes 21 which are
alternately arranged; the cross-flow pre-mineralization pipe 20 and the impact-flow
pre-mineralization pipe 21 are both provided thereon with a first micro-bubble generator 22; and a
plurality of vortex generators 23 having a protruding structure are disposed on an inner wall of the
turbulence mineralization reactor 7.
The circumfluence flotation separation system 3 includes a circumfluence flotation separator
; a circumfluence flotation separator foam groove is disposed at the top of the circumfluence
flotation separator 10; a foam groove outlet of the circumfluence flotation separator I is disposed
at a lowest position of the circumfluence flotation separator foam groove; a feeder 9 is disposed at
a circular outlet at the top of the circumfluence flotation separator foam groove; the feed port of
the turbulence mineralization reactor H is disposed on the feeder 9; an annular circumfluence
In generator 12 is disposed at the bottom of the circumfluence flotation separator 10; a middling and tailing separator is disposed in the circumfluence generator 12; the middling outlet J and the tailing outlet of the circumfluence flotation separator K are disposed on the middling and tailing separator; a spray flow divider 8 is disposed above the circumfluence flotation separator 10; the feed port of the spray flow divider G is disposed on the spray flow divider 8; the spray flow divider 8 and the circumfluence generator 12 are mutually connected via a plurality of pipes; and a plurality of circumfluence spray holes are disposed on the circumfluence generator 12; As shown in Fig. 4, an annular plate 26 is disposed on the outer side of the circumfluence generator 12; a gap is reserved between the annular plate 26 and an outer wall and on a bottom plate 24; the circumfluence generator 12 is provided thereon with a plurality of circumfluence spray chambers 27, and generates a circumfluence via spray holes on the circumfluence spray chambers 27; an outer cylinder wall 25 is disposed between an inner ring of the circumfluence generator 12 and the middling and tailing separator; the outlet direction of the spray chambers is along an inner wall of the annular plate 26; a feed hole is disposed above the circumfluence spray chamber 27, and is connected to an outlet pipe of the spray flow divider 8; an ore pulp distributor 11 is disposed in the middle of the bottom plate 24; the ore pulp distributor 11 has a cylindrical structure; and the outer cylinder wall 25 is 0.5-1.0m higher than the bottom plate 24. As shown in Fig. 5, the centrifugal flotation separation system 4 includes a centrifugal flotation separator 13; a centrifugal flotation separator foam groove is disposed at the top of the centrifugal flotation separator 13; the foam outlet of the centrifugal flotation separator L is disposed at the lowest position of the centrifugal flotation separator foam groove; a stirring transmission mechanism 16 is disposed at the top of the centrifugal flotation separator foam groove; the feed port of the centrifugal flotation separator M is disposed on one side of the centrifugal flotation separator 13, and extends into the centrifugal flotation separator 13 via a pipe; a gas dispersion box 17 is disposed at the bottom of the centrifugal flotation separator 13; a tailing outlet of the centrifugal flotation separator N and a second micro-bubble generator 15 are disposed on the gas dispersion box 17; the centrifugal flotation separator 13 is internally provided with a forced circulation and centrifugal mineralization generator 14 adjacent to the bottom; the forced circulation and centrifugal mineralization generator 14 includes an upper flow guide cylinder 32, a propulsion wheel 30, a dispersion stator, a centrifugal mineralization wheel 34, and a lower flow guide apparatus disposed under the centrifugal mineralization wheel and fixed at the bottom of a groove body; and the lower flow guide apparatus includes a flow guide back taper 28, a discharge bottom plate 35, and a lower flow guide cylinder 29 disposed in the middle of the discharge bottom plate 35; The dispersion stator includes a mineralized cover plate 33 and an ore pulp dispersion plate 31; the ore pulp dispersion plate 31 has a rectangular structure, and is disposed under the mineralized cover plate 33; Specifically, the discharge bottom plate 35 is disposed in the centrifugal flotation separator 13 adjacent to the bottom; the lower flow guide cylinder 29 is disposed in a hole in the center of the discharge bottom plate 35; the discharge bottom plate 35 is provided with a plurality of through holes surrounding the center; a gap is reserved between the discharge bottom plate 35 and an outer wall of the centrifugal flotation separator 13; the flow guide back taper 28 is disposed on the discharge bottom plate 35; the flow guide back taper 28 is internally provided with a plurality of ore pulp dispersion plates 31 having a rectangular structure, pointing to the center of circle, and arranged vertically; the mineralized cover plate 33 is disposed above the plurality of ore pulp dispersion plates 31; the upper flow guide cylinder 32 is disposed in the center of the mineralized cover plate 33; the propulsion wheel 30 is disposed in the upper flow guide cylinder 32, wherein the stirring transmission mechanism 16 passes through the upper flow guide cylinder 32 and the center of the mineralized cover plate 33 via a transmission shaft, and then extends into a space between the mineralized cover plate 33 and the discharge bottom plate 35; an end head of the transmission shaft is provided with the centrifugal mineralization wheel in the space between the mineralized cover plate 33 and the discharge bottom plate 35; and discharge holes are disposed on the mineralized cover plate 33 and the discharge bottom plate 35.
A fluid-based enhanced mix and separation method, including the following steps:
a, first, ore pulp and a reagent are fed to a forced mixer-temperer 5 via a pipe from a feed
port of the forced mixer-temperer A, then flow out from a circulating ore pulp outlet C, and are
fed via a circulation pump 6 from a distribution groove inlet of the forced mixer-temperer D; a
solid-liquid two-phase system consisting of the ore pulp and the reagent is sprayed to the forced
mixer-temperer 5 at a high speed via spray impact pipes 18 and spray cross-flow pipes 19; during
spray, under the action of a high speed impact flow and a forcibly shearing cross flow, the
enhancement reagent is adsorbed on the surfaces of the ore pulp and mineral particles, and the
circulating ore pulp realizes multiple times of circulating, mixing and tempering in the system via
the circulation pump 6; and the tempered ore pulp is discharged out from a tempered ore pulp
outlet B, and is fed to a turbulence mineralization reactor 7 via a pipe;
11) b, the tempered ore pulp enters an ore pulp disperser from a feed port of the turbulence mineralization reactor E, and is fed to the turbulence mineralization reactor 7 via cross-flow pre-mineralization pipes 20 and impact-flow pre-mineralization pipes 21 which are alternately arranged; while the ore pulp is fed to the turbulence mineralization reactor 7, air is fed and mixed with the ore pulp via a first micro-bubble generator 22; in the turbulence mineralization reactor 7, a three-phase system consisting of the air, the ore pulp, and coal particles in the ore pulp realizes efficient micro-particles and bubble impact in a forced turbulence environment formed mainly by the high speed impact flow and the forcibly shearing flow; after the flotation mineralization reaction efficiency and capability are enhanced, the three-phase system is discharged out from a discharge port of the turbulence mineralization reactor F, and is fed to a feed port of the spray flow divider G via a pipe; c, the ore pulp is fed to a spray flow divider 8 via the feed port of the spray flow divider G, and is fed to a circumfluence generator 12 from a plurality of pipes via the spray flow divider 8; the ore pulp is sprayed out from a circumfluence spray chamber 27 of the circumfluence generator
12, and forms a circumfluence between an outer cylinder wall 25 and an annular plate 26, so as to
further enhance the flotation recovery effect of difficult-to-float particles; an underflow product
separated by a centrifugal flotation separator 13, as a final tailing, is discharged out from a tailing
outlet of the centrifugal flotation separator K; the separated middling is discharged out from a
middling outlet J, and is fed to the feed port of the forced mixer-temperer A via a pipe; the
discharged tailing ore pulp is fed to a feed port of the centrifugal flotation separator M via a pipe;
and a circumfluence flotation separator foam groove at the top of a centrifugal flotation separator
collects overflowing foams, and discharges out the overflowing foams as a concentrate product
from a centrifugal flotation separator foam groove outlet I;
d, the tailing ore pulp is fed to the centrifugal flotation separator 13 from the feed port of the
centrifugal flotation separator M, enters an upper flow guide cylinder 32, and pushes a propulsion
wheel 30 to enter a space between a mineralized cover plate 33 and a discharge bottom plate 35; a
centrifugal mineralization wheel 34 in the space rotates under the driving of a stirring transmission
mechanism 16 via a transmission shaft; the tailing ore pulp, under the action of the centrifugal
mineralization wheel 34, constantly generates an uprising buoyant force in the tailing ore pulp
along a rectangular ore pulp dispersion plate 31 and a flow guide back taper 28; a foam layer is
generated at the top of the uprising tailing ore pulp; the generated foam is finally discharged out
1'l from a foam outlet of the centrifugal flotation separator L of a centrifugal flotation separator foam groove, and is fed to a feed port of the feeder H of the centrifugal flotation separator for repeated separation; the tailing ore pulp adjacent to the discharge bottom plate 35 of the centrifugal flotation separator 13 is difficult-to-float particles, and flows out from a discharge hole on the discharge bottom plate 35; a part of the difficult-to-float particles are discharged out from a tailing outlet of the centrifugal flotation separator N of a gas dispersion box 17, and the other part of the difficult-to-float particles, under the action of a centrifugal force of the centrifugal mineralization wheel 34, pass through a lower flow guide cylinder in the middle of the discharge bottom plate 35, and are sucked into a space of the centrifugal mineralization wheel 34; under the centrifugal force generated by the centrifugal mineralization wheel 34 during rotation, a buoyant force is continuously generated for the tailing ore pulp, and the difficult-to-float particles are dispersed in the ore pulp for continuous circulation.
1 /
CLAIMES:
1. A fluid-based enhanced mix and separation system, comprising a forced mixing and tempering system (1), a turbulence mineralization reaction system (2), a circumfluence flotation separation system (3) and a centrifugal flotation separation system (4) which are connected via pipes, wherein a circulating ore pulp outlet (C) of the forced mixing and tempering system (1) is connected to a distribution groove inlet (D) of the forced mixer-temperer via a circulation pump (6); a tempered ore pulp outlet (B) is connected to a feed port of the turbulence mineralization reactor (E) of the turbulence mineralization reaction system (2) via a pipe; a discharge port of the turbulence mineralization reactor (F) of the turbulence mineralization reaction system (2) is connected to a feed port of the spray flow divider (G) of the circumfluence flotation separation system (3) via a pipe; an middling outlet (J) at the bottom of the circumfluence flotation separation system (3) is connected to a feed port of the forced mixer-temperer (A) via a pipe; a tailing outlet of the circumfluence flotation separator (K) of the circumfluence flotation separation system (3) is connected to a feed port of the centrifugal flotation separator (M) of the centrifugal flotation separation system (4) via a pipe; and a foam outlet of the centrifugal flotation separator (L) of the centrifugal flotation separation system (4) is connected to a feed port of the turbulence mineralization reactor (H) of the circumfluence flotation separation system (3) via a pipe; The forced mixing and tempering system (1) comprises a cylindrical forced mixer-temperer (5); the tempered ore pulp outlet (B) and the circulating ore pulp outlet (C) are respectively disposed at the top of the forced mixer-temperer (5); an ore pulp disperser is disposed on the outer side of the forced mixer-temperer (5); the ore pulp disperser is provided thereon with a plurality of dispersion pipes surrounding the forced mixer-temperer (5); a plurality of spray pipes are disposed between the dispersion pipes and the forced mixer-temperer (5); and the spray pipes are used to spray ore pulp into the forced mixer-temperer (5), and enable the ore pulp to generate a shear force in the forced mixer-temperer (5), so as to enhance the mineralization effect of the ore pulp; The turbulence mineralization reaction system (2) comprises a cylindrical turbulence mineralization reactor (7); the discharge port of the turbulence mineralization reactor (F) is disposed at the top of the turbulence mineralization reactor (7); an ore pulp disperser is disposed at the bottom of the turbulence mineralization reactor (7); the ore pulp disperser is provided thereon with a plurality of dispersion pipes surrounding the turbulence mineralization reactor (7); and a
1C plurality of mineralization pipes are disposed between the dispersion pipes and the turbulence mineralization reactor (7);
The circumfluence flotation separation system (3) comprises a circumfluence flotation
separator (10); a circumfluence flotation separator foam groove is disposed at the top of the
circumfluence flotation separator (10); a foam groove outlet of the circumfluence flotation
separator (I) is disposed at a lowest position of the circumfluence flotation separator foam groove;
a feeder (9) is disposed at a circular outlet at the top of the circumfluence flotation separator foam
groove; the feed port of the turbulence mineralization reactor (H) is disposed on the feeder (9); an
annular circumfluence generator (12) is disposed at the bottom of the circumfluence flotation
separator (10); a middling and tailing separator is disposed in the circumfluence generator (12);
the middling outlet (J) and the tailing outlet of the circumfluence flotation separator (K) are
disposed on the middling and tailing separator; a spray flow divider (8) is disposed above the
circumfluence flotation separator (10); the feed port of the spray flow divider (G) is disposed on
the spray flow divider (8); the spray flow divider (8) and the circumfluence generator (12) are
mutually connected via a plurality of pipes; and a plurality of circumfluence spray holes are
disposed on the circumfluence generator (12);
The centrifugal flotation separation system (4) comprises a centrifugal flotation separator
(13); a centrifugal flotation separator foam groove is disposed at the top of the centrifugal
flotation separator (13); the foam outlet of the centrifugal flotation separator (L) is disposed at the
lowest position of the centrifugal flotation separator foam groove; a stirring transmission
mechanism (16) is disposed at the top of the centrifugal flotation separator foam groove; the feed
port of the centrifugal flotation separator (M) is disposed on one side of the centrifugal flotation
separator (13), and extends into the centrifugal flotation separator (13) via a pipe; a gas dispersion
box (17) is disposed at the bottom of the centrifugal flotation separator (13); a tailing outlet of the
centrifugal flotation separator (N) and a second micro-bubble generator (15) are disposed on the
gas dispersion box (17); the centrifugal flotation separator (13) is internally provided with a forced
circulation and centrifugal mineralization generator (14) adjacent to the bottom; the forced
circulation and centrifugal mineralization generator (14) comprises an upper flow guide cylinder
(32), a propulsion wheel (30), a dispersion stator, a centrifugal mineralization wheel (34), and a
lower flow guide apparatus disposed under the centrifugal mineralization wheel and fixed at the
bottom of a groove body; and the lower flow guide apparatus comprises a flow guide back taper
1K

Claims (5)

  1. (28), a discharge bottom plate (35), and a lower flow guide cylinder (29) disposed in the middle of the discharge bottom plate (35); The dispersion stator comprises a mineralized cover plate (33) and an ore pulp dispersion plate (31); the ore pulp dispersion plate (31) has a rectangular structure, and is disposed under the mineralized cover plate (33); Specifically, the discharge bottom plate (35) is disposed in the centrifugal flotation separator (13) adjacent to the bottom; the lower flow guide cylinder (29) is disposed in a hole in the center of the discharge bottom plate (35); the discharge bottom plate (35) is provided with a plurality of through holes surrounding the center; a gap is reserved between the discharge bottom plate (35) and an outer wall of the centrifugal flotation separator (13); the flow guide back taper (28) is disposed on the discharge bottom plate (35); the flow guide back taper (28) is internally provided with a plurality of ore pulp dispersion plates (31) having a rectangular structure, pointing to the center of circle, and arranged vertically; the mineralized cover plate (33) is disposed above the plurality of ore pulp dispersion plates (31); the upper flow guide cylinder (32) is disposed in the center of the mineralized cover plate (33); the propulsion wheel (30) is disposed in the upper flow guide cylinder (32), wherein the stirring transmission mechanism (16) passes through the upper flow guide cylinder (32) and the center of the mineralized cover plate (33) via a transmission shaft, and then extends into a space between the mineralized cover plate (33) and the discharge bottom plate (35); an end head of the transmission shaft is provided with the centrifugal mineralization wheel in the space between the mineralized cover plate (33) and the discharge bottom plate (35); and discharge holes are disposed on the mineralized cover plate (33) and the discharge bottom plate (35).
  2. 2. The fluid-based enhanced mix and separation system according to claim 1, wherein the plurality of spray pipes disposed between the forced mixer-temperer (5) and the plurality of dispersion pipes are respectively spray impact pipes (18) and spray cross-flow pipes (19) which are alternately arranged.
  3. 3. The fluid-based enhanced mix and separation system according to claim 1, wherein the plurality of mineralization pipes disposed between the dispersion pipes and the turbulence mineralization reactor (7) comprise cross-flow pre-mineralization pipes (20) and impact-flow pre-mineralization pipes (21) which are alternately arranged; the cross-flow pre-mineralization pipe (20) and the impact-flow pre-mineralization pipe (21) are both provided thereon with a first
    1-7 micro-bubble generator (22); and a plurality of vortex generators (23) having a protruding structure are disposed on an inner wall of the turbulence mineralization reactor (7).
  4. 4. The fluid-based enhanced mix and separation system according to claim 1, wherein an
    annular plate (26) is disposed on the outer side of the circumfluence generator (12); a gap is
    reserved between the annular plate (26) and an outer wall and on a bottom plate (24); the
    circumfluence generator (12) is provided thereon with a plurality of circumfluence spray
    chambers (27), and generates a circumfluence via spray holes on the circumfluence spray
    chambers (27); an outer cylinder wall (25) is disposed between an inner ring of the circumfluence
    generator (12) and the middling and tailing separator; the outlet direction of the spray chambers is
    along an inner wall of the annular plate; a feed hole is disposed above the circumfluence spray
    chamber (27), and is connected to an outlet pipe of the spray flow divider (8); an ore pulp
    distributor (11) is disposed in the middle of the bottom plate (24); the ore pulp distributor (11) has
    a cylindrical structure; and the outer cylinder wall (25) is 0.5-1.0m higher than the bottom plate
    (24).
  5. 5. A separation method using the fluid-based enhanced mix and separation system of claim 1,
    comprising the following steps:
    a, first, ore pulp and a reagent are fed to a forced mixer-temperer (5) via a pipe from a feed
    port of the forced mixer-temperer (A), then flow out from a circulating ore pulp outlet (C), and are
    fed via a circulation pump (6) from a distribution groove inlet of the forced mixer-temperer (D); a
    solid-liquid two-phase system consisting of the ore pulp and the reagent is sprayed to the forced
    mixer-temperer (5) at a high speed via spray impact pipes (18) and spray cross-flow pipes (19);
    during spray, under the action of a high speed impact flow and a forcibly shearing cross flow, the
    enhancement reagent is adsorbed on the surfaces of the ore pulp and mineral particles, and the
    circulating ore pulp realizes multiple times of circulating, mixing and tempering in the system via
    the circulation pump (6); and the tempered ore pulp is discharged out from a tempered ore pulp
    outlet (B), and is fed to a turbulence mineralization reactor (7) via a pipe;
    b, the tempered ore pulp enters an ore pulp disperser from a feed port of the turbulence
    mineralization reactor (E), and is fed to the turbulence mineralization reactor (7) via cross-flow
    pre-mineralization pipes (20) and impact-flow pre-mineralization pipes (21) which are alternately
    1Q arranged; while the ore pulp is fed to the turbulence mineralization reactor (7), air is fed and mixed with the ore pulp via a first micro-bubble generator (22); in the turbulence mineralization reactor (7), a three-phase system consisting of the air, the ore pulp, and coal particles in the ore pulp realizes efficient micro-particles and bubble impact in a forced turbulence environment formed mainly by the high speed impact flow and the forcibly shearing flow; after the flotation mineralization reaction efficiency and capability are enhanced, the three-phase system is discharged out from a discharge port of the turbulence mineralization reactor (F), and is fed to a feed port of the spray flow divider (G) via a pipe; c, the ore pulp is fed to a spray flow divider (8) via the feed port of the spray flow divider (G), and is fed to a circumfluence generator (12) from a plurality of pipes via the spray flow divider (8); the ore pulp is sprayed out from a circumfluence spray chamber (27) of the circumfluence generator (12), and forms a circumfluence between an outer cylinder wall (25) and an annular plate (26), so as to further enhance the flotation recovery effect of difficult-to-float particles; an underflow product separated by a centrifugal flotation separator (13), as a final tailing, is discharged out from a tailing outlet of the centrifugal flotation separator (K); the separated middling is discharged out from a middling outlet (J), and is fed to the feed port of the forced mixer-temperer (A) via a pipe; the discharged tailing ore pulp is fed to a feed port of the centrifugal flotation separator (M) via a pipe; and a circumfluence flotation separator foam groove at the top of a centrifugal flotation separator (10) collects overflowing foams, and discharges out the overflowing foams as a concentrate product from a centrifugal flotation separator foam groove outlet (I); d, the tailing ore pulp is fed to the centrifugal flotation separator (13) from the feed port of the centrifugal flotation separator (M), enters an upper flow guide cylinder (32), and pushes a propulsion wheel (30) to enter a space between a mineralized cover plate (33) and a discharge bottom plate (35); a centrifugal mineralization wheel (34) in the space rotates under the driving of a stirring transmission mechanism (16) via a transmission shaft; the tailing ore pulp, under the action of the centrifugal mineralization wheel (34), constantly generates an uprising buoyant force in the tailing ore pulp along a rectangular ore pulp dispersion plate (31) and a flow guide back taper (28); a foam layer is generated at the top of the uprising tailing ore pulp; the generated foam is finally discharged out from a foam outlet of the centrifugal flotation separator (L) of a centrifugal flotation separator foam groove, and is fed to a feed port of the feeder (H) of the centrifugal flotation separator for repeated separation; the tailing ore pulp adjacent to the discharge bottom plate (35) of the centrifugal flotation separator (13) is difficult-to-float particles, and flows out from a discharge hole on the discharge bottom plate (35); a part of the difficult-to-float particles are discharged out from a tailing outlet of the centrifugal flotation separator (N) of a gas dispersion box (17), and the other part of the difficult-to-float particles, under the action of a centrifugal force of the centrifugal mineralization wheel (34), pass through a lower flow guide cylinder in the middle of the discharge bottom plate (35), and are sucked into a space of the centrifugal mineralization wheel (34); under the centrifugal force generated by the centrifugal mineralization wheel (34) during rotation, a buoyant force is continuously generated for the tailing ore pulp, and the difficult-to-float particles are dispersed in the ore pulp for continuous circulation.
    Forced mixing and Turbulence Circumfluence Centrifugal tempering system mineralization flotation separation flotation reaction system system separation system
    Compresse d air
    1/3 FIG. 1 Compressed air
    reagent Ore pulp Concentrate Tailings
    Compressed air
    FIG. 2 FIG. 3
    FIG. 4
    2/3
    Compressed air
    FIG. 5
    3/3
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