CN111570098B - Medicament centrifugal atomization device and flotation complete equipment based on shearing atomization - Google Patents

Medicament centrifugal atomization device and flotation complete equipment based on shearing atomization Download PDF

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Publication number
CN111570098B
CN111570098B CN202010409242.1A CN202010409242A CN111570098B CN 111570098 B CN111570098 B CN 111570098B CN 202010409242 A CN202010409242 A CN 202010409242A CN 111570098 B CN111570098 B CN 111570098B
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atomization
atomizing
ore pulp
inlet
rotating shaft
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CN111570098A (en
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朱金波
王超
周伟
朱宏政
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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    • 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
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/41—Emulsifying
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B01F29/86—Mixers with rotating receptacles rotating about a substantially vertical axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • 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
    • 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
    • B03D1/145—Feed mechanisms for reagents
    • 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
    • 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
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell

Abstract

The invention discloses a medicament centrifugal atomization device and flotation complete equipment based on shearing atomization, which comprises a medicament centrifugal atomization device, a double-wheel jet stirring device and a high-speed shearing emulsification device; the upper part of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating feeding port, an emulsifier inlet and an atomization inlet, the lower end of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating discharging port, and the atomization inlet is communicated with an atomization outlet or a sudden-expansion atomization cavity through an atomized medicament adding pipe; the emulsifier inlet is communicated with the emulsifier discharge port through a collector adding pipe; the ore pulp circulating feed inlet is communicated with the ore pulp circulating discharge outlet through an ore pulp circulating feed pipe; the invention realizes effective utilization of energy, reduces energy consumption, enables the collecting agent to react with ore pulp in advance, maintains the stability of a microbubble system, and simultaneously performs shearing and turbulent mixing for many times, so that the microbubble system is more balanced, provides sufficient contact opportunity for efficient mineralization of bubbles, greatly improves mineralization efficiency and improves flotation effect.

Description

Medicament centrifugal atomization device and flotation complete equipment based on shearing atomization
Technical Field
The invention relates to the technical field of mining machinery manufacturing, in particular to complete flotation equipment for separating ore particles, and more particularly relates to a centrifugal reagent atomizing device and complete flotation equipment based on shearing atomization.
Background
In the process of mineral separation, for example, the separation of fine coal is the first choice of flotation, and the current mainstream flotation devices mainly include a mechanical stirring type flotation machine, a jet type flotation machine, a flotation column and the like, and before the separation of flotation feed materials, an ore pulp pre-processor, a flotation reagent adding device, a reagent emulsifying device and other auxiliary pretreatment devices are usually matched and are important for the efficient flotation of ore pulp.
For the current flotation device and the auxiliary pretreatment device, separation is usually performed in the practical application process, and the transportation of the ore pulp is usually pumping, so that huge energy loss is accompanied in the flotation device and the auxiliary device after each stage of pumping, for example, after the ore pulp is sent to the pretreatment device, the energy carried by the ore pulp is attenuated to zero, and the like. And the ore pulp pretreatment equipment, the agent adding equipment and the like run by themselves and pump the materials to the flotation machine, so that a large amount of energy is consumed, the equipment occupies a large area of a factory building, and the equipment and the infrastructure cost are high.
For improving the flotation efficiency, the adding mode of the agent greatly influences a bubble mineralization system and further influences the flotation efficiency, the currently commonly used flotation agents mainly comprise a foaming agent and a collecting agent, for the foaming agent, the surface tension of a gas-liquid interface is mainly changed, the existing addition of the bubble agent is mainly added in the flotation process of a flotation machine, and the existing addition of the bubble agent cannot be uniformly added and cannot effectively act on the gas-liquid interface, so that a large amount of waste of the agent is caused, the flotation efficiency cannot be quantitatively controlled and influenced, and the phenomenon of 'fine grain leakage' occurs; for the collecting agent, the hydrophobicity of the surface of the mineral is mainly changed, so that floating mineral particles are effectively adhered to bubbles, the existing collecting agent is usually added directly in the adding process or added after certain emulsification, and compared with the existing collecting agent which is added directly, the effect is obvious in reducing the medicine consumption and improving the flotation efficiency, but the phenomena of large energy loss, complex structure, occupation of plant area and the like can be caused.
Meanwhile, in the flotation stage, as a stirring device is not arranged in a common jet flotation machine, when the concentration of ore pulp is higher, enough power cannot be provided to realize the sufficient mixing and dispersion of the ore pulp, bubbles and flotation reagents; and the energy consumption that mechanical agitation formula flotation device's agitating unit's high rotational speed needs is higher, and the rotational speed is low can not form good flow field and inspiratory capacity again, to novel injection agitation formula flotation device, rotational speed unstability will appear usually in the drive impeller rotation in-process, phenomenon such as ore pulp preliminary treatment effect is not good, how consequently can utilize good pumping energy to carry out the foaming agent, the effective interpolation of medicaments such as collecting agent, reduce energy consumption and medicament loss, and reduce equipment area, it needs the problem that the solution is pressed to the needs to the skilled person to keep equipment operation stable.
Disclosure of Invention
In view of the above, the invention provides the chemical centrifugal atomizing device and the flotation complete equipment based on shear atomization, which have the advantages of high power utilization rate, good atomizing effect, good stirring effect, low energy consumption and good flotation effect.
In order to achieve the purpose, the invention adopts the following technical scheme: a centrifugal medicament atomization device comprises a driving part, an atomization barrel, a material distribution barrel, a rotating shaft, a supporting chassis and a multi-layer flow guide atomization disk, wherein the material distribution barrel is positioned in the atomization barrel;
the atomizing cylinder is fixed through a support, a feeding port is formed in the top end of the atomizing cylinder, and an annular injection outlet is formed in the lower portion of the atomizing cylinder; the supporting chassis is fixed at the lower part of the rotating shaft; the material distributing cylinder is sleeved outside the rotating shaft, the lower end of the material distributing cylinder is fixed on the supporting chassis and forms a material distributing channel with the rotating shaft, and the upper end of the material distributing channel is communicated with the feeding port; the rotating shaft is installed at the lower part of the material distributing cylinder through a bearing, and the lower end of the rotating shaft extends out of the material distributing cylinder;
the material distributing barrel is provided with a plurality of groups of material distributing holes along the axial direction; the multiple layers of the guide atomizing disks are fixed on the outer side of the material distribution barrel, an atomizing layer is formed between every two layers of the guide atomizing disks, and the atomizing layer is provided with an atomizing inlet a and an atomizing outlet; the atomization inlet a corresponds to the material distribution hole; an atomization outlet channel is arranged between the atomization outlet and the inner wall of the atomization cylinder; the atomization outlet channel is communicated with the annular injection outlet; and the driving end of the driving part is in driving connection with the lower end of the rotating shaft.
The invention provides a medicament centrifugal atomization device, wherein a foaming agent is conveyed into an atomization layer enclosed by a flow guide atomization disc through a material inlet by a medicament pump, the flow guide atomization disc is driven by a driving part to rotate at a high speed, the foaming agent is subjected to high-speed shearing atomization under the high-speed rotation centrifugal action and then passes through an atomization cylinder, air and the atomized foaming agent are intensively mixed in the process, the air is fully cut into micro bubbles, and a uniform and stable micro bubble group is formed under the full contact and action of the foaming agent and the air, so that the flotation is facilitated.
The device further comprises a medicament feeding bin, wherein the medicament feeding bin is arranged on an installation hole in the top end of the atomizing cylinder; the medicament feeding bin is provided with a feeding opening, and the lower end of the medicament feeding bin is provided with an annular feeding opening; the annular feed inlet is correspondingly positioned at the upper end of the material distribution channel and communicated with the material distribution channel.
By adopting the technical scheme, the annular feeding hole is formed in the lower end of the medicament feeding bin, so that the medicament in the medicament pump can be effectively dispersed into the flow guide atomizing disc, and the medicament can be dispersed and atomized efficiently and quickly.
Preferably, the flow-guiding atomizing disc has a predetermined thickness and is arranged in a manner of reducing the outer diameter from the position close to the two ends to the end part; a flow guide long hole is formed in the flow guide atomizing disc along the radial direction; a plurality of flow guide short holes are obliquely formed in the positions from the upper surface and the lower surface of the flow guide atomizing disc to the flow guide long holes, and inlets of the flow guide short holes are inclined towards the atomizing inlet a side.
Further, still include the atomizing sieve, the atomizing sieve is the cylindric, the atomizing sieve cover is established in the multilayer water conservancy diversion atomizing disk outside end, its upper end is fixed with atomizing bobbin top inner wall, sieve mesh on it with the atomizing outlet position corresponds.
Further, still include that secondary atomizing shears the structure and includes loudspeaker dish and reposition of redundant personnel shearing flow channel b loudspeaker dish is equipped with the passageway along radial direction, the entry intercommunication of passageway the atomizing export, be equipped with reposition of redundant personnel shearing flow channel b in the passageway, the export of passageway has suddenly to expand the atomizing chamber.
By adopting the technical scheme, the invention can form uniform and stable micro-bubble groups through secondary shearing and cutting of the flow dividing and shearing channel and the sudden expansion atomizing cavity and secondary shearing and cutting of larger-granularity bubbles and negative pressure crushing, and finally under the full contact and action of the foaming agent and air, thereby being beneficial to flotation.
A flotation complete set of equipment based on shearing atomization comprises the medicament centrifugal atomization device, a double-wheel jet stirring device and a high-speed shearing emulsification device;
the upper part of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating feeding port, an emulsifier inlet and an atomization inlet, the lower end of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating discharging port, and the atomization inlet is communicated with an atomization outlet or the sudden-expansion atomization cavity through an atomized medicament adding pipe; the emulsifier inlet is communicated with the high-speed shearing emulsifying device through a collector adding pipe; the ore pulp circulation feed inlet is communicated with the ore pulp circulation discharge outlet through a circulation pump through an ore pulp circulation feed pipe.
Furthermore, the double-wheel jet stirring device comprises a flotation tank, a support frame, a pretreatment bin, a rotating connecting rod, a driving impeller, a stirring impeller and a guide cylinder;
the support frame is arranged at an opening at the upper end of the flotation tank; the lower end of the pretreatment bin is fixed with the support frame, an annular jet nozzle is connected to the side wall of the pretreatment bin, a discharge hole is formed in the lower end of the pretreatment bin, and the discharge hole is fixed with the upper end of the guide cylinder; the upper end of the rotary connecting rod is rotatably connected with the top end of the pretreatment bin through a bearing, and the lower end of the rotary connecting rod penetrates through the discharge port and extends to the lower part of the guide cylinder; the driving impeller is fixed on the rotating connecting rod in the pretreatment bin and corresponds to the annular jet nozzle in position; the stirring impeller is fixed at the lower end of the rotating connecting rod, and the ore pulp circulating discharge hole is formed in the bottom of the flotation tank; the annular jet flow nozzle comprises an outer nozzle and an inner nozzle embedded in the outer nozzle, and the inner nozzle is communicated with the pulp circulating feeding pipe; the atomized medicament adding pipe is communicated with the outer nozzle; the collecting agent adding pipe is used as an injected pipe and is communicated with the ore pulp circulating feeding pipe, and the outlet end of the circulating pump is connected and communicated with the ore pulp circulating feeding pipe.
By adopting the technical scheme, the invention adopts a double-impeller stirring mode, the circulating pump circulates ore pulp through the pump, the circulating ore pulp is ejected from the annular jet nozzle to provide a power source for driving the impeller, the driving impeller is used as a stirring mechanism for primary mixing and stirring in the pretreatment bin, and liquid ejected from the annular jet nozzle can be used for driving the rotating connecting rod and the stirring impeller to rotate; stirring impeller can form the secondary and stir the mixture, and the power of circulating pump that has utilized that can be abundant has avoided the energy waste that the flooding of jet flotation machine sprayed and lead to, further effectively utilizes the energy and adopt the design of bilobed wheel stirring more even, and the flotation effect is better.
Further, double-wheel jet stirring device still includes scraper blade mechanism, scraper blade mechanism includes including pivot support, scraper blade pivot and scraper blade, the pivot support sets up flotation tank upper end, the scraper blade pivot sets up on the pivot support, just the driving motor output fixed connection of scraper blade pivot one end and outside setting, equipartition fixed mounting is a plurality of in the scraper blade pivot the scraper blade, the scraper blade is located the top in concentrate enrichment district.
The ore pulp enters the flotation tank through the ore pulp inlet through the pump body and is discharged through the ore pulp outlet, the ore pulp pumped from the ore pulp circulating discharge port is pumped into the ore pulp circulating feeding pipe by the circulating pump, the emulsified collecting agent in the collecting agent adding pipe is simultaneously injected, so that the ore pulp and the collecting agent are fully mixed and act firstly to change the surface hydrophobicity of minerals, the mineral is sprayed out through the inner nozzle, then the atomized foaming agent in the atomized agent adding pipe is sucked in under the injection action, the atomized foaming agent is fully mixed with the modified ore pulp in the outer nozzle and then is sprayed out of the annular jet nozzle at a high speed, the impeller is driven to rotate by impact, so that the rotating connecting rod is driven to rotate, the ore pulp thrown out by driving the impeller to rotate is subjected to secondary pulp mixing under the rotating and stirring action of the centrifugal stirring sieve, so that gas-liquid-solid three phases are fully mixed and dispersed and are discharged into the guide, then the mixture is stirred by a stirring impeller, and finally the stirred flotation mineralization foam is thrown out from the edge of the stirring impeller and floats upwards to the liquid level above the flotation zone, is fully accumulated at the upper end of a diversion clapboard, is scraped out of a flotation tank by a scraper blade, and the mineralization foam which is not scraped is deposited downwards to a concentrate enrichment zone and sinks to the lower part of the diversion clapboard, passes over the diversion clapboard, returns to the flotation mineralization zone again and participates in the flotation again; and the circulating ore pulp is pumped into the ore pulp circulating feeding pipe again by the circulating pump through the ore pulp circulating discharge hole, so that the circulating flotation is realized.
Further, the high-speed shearing emulsifying device comprises an emulsifying tank, a medicament spray head, a fixed gear disc, a rotary gear disc and a transmission belt;
the bottom of the emulsifying tank is provided with an emulsifying agent outlet; the emulsifier inlet is communicated with the emulsifier outlet;
the chemical sprayer is installed at the top end of the emulsifying tank, a water flow injection pipe is connected to a sprayer inlet close to the chemical sprayer, and a sprayer outlet of the chemical sprayer is located in the emulsifying tank and used for spraying a mixed liquid of a collecting agent and water into the emulsifying tank;
the fixed gear disc is arranged in the emulsifying tank, and the top end of the fixed gear disc is provided with a mixed liquid inlet which is fixed and communicated with the spray head outlet;
the rotating fluted disc is arranged in the emulsifying tank, the rotating fluted disc and the fixed fluted disc are oppositely arranged, a shearing flow channel which is communicated with the nozzle outlet and the emulsifying tank and has a sawtooth-shaped longitudinal section is formed between the rotating fluted disc and the fixed fluted disc;
drive belt one end with the drive division is connected the other end and is connected the transmission pivot, the transmission pivot is installed through the bearing the tank bottom of emulsion groove and with rotatory fluted disc bottom end fixed connection.
By adopting the technical scheme, the collecting agent is conveyed into the emulsifying tank at high speed by the agent nozzle under the action of the agent pump, water is sucked by the water flow injection pipe under the injection action of high-speed collecting agent liquid, the water suction quantity can be adjusted according to the feeding quantity of the collecting agent, the mixed liquid is uniformly distributed to the shearing flow channels, the rotary fluted disc rotates at high speed under the driving of the driving part, the mixed liquid in the shearing flow channels is fully mixed and emulsified under the high-speed shearing action, the emulsifying effect is good, and the emulsified collecting agent is injected and added into the ore pulp circulating feeding pipe through the collecting agent adding pipe to fully react with the ore pulp.
Further, the driving part comprises the permanent magnet eddy current flexible transmission speed regulating device and a speed compensation motor;
the driving rotor of the permanent magnet eddy current flexible transmission speed regulation device is fixedly connected with the rotating connecting rod, a rotating shaft at the upper end of the speed compensation motor is in transmission connection with the rotating shaft through a first gearbox, a rotating shaft at the lower part of the speed compensation motor is fixedly connected with a driven rotor of the permanent magnet eddy current flexible transmission speed regulation device, a second gearbox is arranged at the lower end of the transmission rotating shaft and is connected with the output end of the second gearbox, a belt pulley is arranged at the input end of the second gearbox, and the belt pulley is in transmission connection with the speed compensation motor through a transmission belt.
By adopting the technical scheme, compared with the prior art that the final energy of the chemical and pulp delivery in the flotation process is completely converted into the internal energy to be consumed in the size mixing equipment and the flotation tank, the invention fully utilizes the jet energy of the annular jet nozzle for jetting the ore pulp by the circulating pump, drives the jetting and atomizing device to be used for driving the pretreatment stirring mechanism to carry out size mixing pretreatment, realizes the effective utilization of energy, reduces energy consumption, fully considers the pretreatment effect of the collecting agent and the ore pulp and the effect of the atomizing foaming agent on the generation of bubbles in the structural design and the working process, pre-reacts the collecting agent and the ore pulp, changes the hydrophobicity of the surface of the mineral, and provides a good adsorption interface for efficiently mineralizing the mineral with the bubbles; meanwhile, the foaming agent is atomized in advance and then contacts with the air, so that the broken bubbles are in the inhibiting and merging atmosphere, the stability of the micro-bubble system is kept, and meanwhile, the micro-bubble system is more balanced by multiple times of shearing and turbulent mixing, sufficient contact opportunities are provided for efficient mineralization of the bubbles, the mineralization efficiency is greatly improved, and the flotation effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a flotation plant based on shear atomization according to the invention;
FIG. 2 is a schematic diagram of a centrifugal atomization device for a pharmaceutical agent in a flotation plant based on shear atomization according to the present invention;
FIG. 3 is a top view of a guiding atomizing disk of a centrifugal atomizing device for pharmaceutical in a flotation plant based on shear atomization according to the present invention;
FIG. 4 is a sectional view of a guiding atomizing disk of a centrifugal atomizing device for pharmaceutical in a flotation plant based on shear atomization according to the present invention;
FIG. 5 is a schematic diagram of a high-speed shearing emulsifying device in a flotation plant based on shearing atomization according to the present invention;
FIG. 6 is a schematic structural diagram of a double-wheel jet stirring device in a flotation complete plant based on shear atomization;
FIG. 7 is a schematic structural diagram of a scraper mechanism on the double-wheel jet stirring mechanism of the invention;
in the figure: 101 is a medicament feeding bin, 1011 is an annular feeding hole, 102 is a material separating cylinder, 103 is a flow guide atomizing disc, 1030 is a flow guide long hole, 1032 is a flow guide short hole, 1031 is an atomizing layer, 1031a is an atomizing inlet, 1031b is an atomizing outlet, 104 is an atomizing screen, 106 is a rotating shaft, 107 is a first gearbox, 21-position second gearbox, 108 is a supporting chassis, 109 is an atomizing cylinder, 51 is a flotation tank, 5311 is a pretreatment bin, 5342 is a rotating connecting rod, 5341 is a driving impeller, 5343 is a stirring impeller, 532 is a flow guide cylinder, 5317 is a pulp feeding pipe, 5314 is a collecting agent adding pipe, 5315 is an atomizing medicament adding pipe, 5312 is an annular jet nozzle, 5312a is an outer nozzle, 5312b is an inner nozzle, 5344 is a centrifugal stirring screen, 5331 is a sealing cover, 516 is a flow guide partition plate, and 517 is a concentrate enrichment area; 511 is a pulp inlet, 512 is a pulp outlet, 518 is a false bottom, 52 is a rotary bracket, 513 is a scraper, 514 is a scraper rotating shaft, 515 is a driving motor output end, 13 is an atomizing cylinder, 1 is a sealing cover, 11 is a sealing cover, 12 is a bearing sleeve, 121a is a top ring, 13 is an atomizing barrel, 131 is an injection shunt pipe, 133 is a conical guide cover, 141 is a rotating shaft, 141a is a convex ring, 142 is a laminar flow guide disc, 144 is a shearing driving layer, 145 is a discharge hole, 163 is a horn disc, 161 is a shunting shearing flow channel b, a flow hole 162 is a sudden expansion atomizing cavity, 17 is a pressurization mixing conveying mechanism, 171 is a mixing cavity, 172 is an axial flow mixing acceleration impeller, 172a axial flow blade, 172b is a central shaft, 173 is a first-stage air suction pipe, 174 is a conveying pipe, 175 is a second-stage air suction pipe, 176 is a sudden expansion mixing cavity, 177 is a distribution cavity, 178 is a branch outlet, 22 is an emulsifying groove, 23, 25 is a fixed gear disc, 26 is a rotary gear disc, 27 is a transmission rotating shaft, 262 is a shearing flow channel, 31 is a speed compensation motor, 32 is a permanent magnet eddy current flexible transmission speed regulation device, 33 is a belt pulley, and 34 is a transmission belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by persons skilled in the art based on the embodiments in the present embodiment without any creative efforts belong to the protection scope of the present embodiment.
Referring to fig. 1-7, a medicament centrifugal atomization device comprises a driving part, an atomization cylinder 109, a material distribution cylinder 102 positioned in the atomization cylinder 109, a rotating shaft 106, a support chassis 108 and a multi-layer flow-guiding atomization disc 103;
the atomizing cylinder 109 is fixed by a bracket, the top end of the atomizing cylinder is provided with a feeding port, and the lower part of the atomizing cylinder is provided with an annular injection outlet; the supporting chassis 108 is fixed at the lower part of the rotating shaft 106; the material distribution barrel 102 is sleeved outside the rotating shaft 106, the lower end of the material distribution barrel 102 is fixed on the supporting chassis 108 and forms a material distribution channel with the rotating shaft 106, and the upper end of the material distribution channel is communicated with the feeding port; the rotating shaft 106 is mounted at the lower part of the material separating barrel 102 through a bearing, and the lower end of the rotating shaft extends out of the material separating barrel 102;
a plurality of groups of material distributing holes are formed in the material distributing barrel 102 along the axial direction; the multi-layer flow guiding atomizing disks 103 are fixed on the outer side of the material distribution barrel 102, an atomizing layer 1031 is formed between each layer of flow guiding atomizing disk 103, and the atomizing layer 1031 is provided with an atomizing inlet 1031a and an atomizing outlet 1031 b; the atomization inlet 1031a corresponds to the distributing hole; an atomization outlet passage is arranged between the atomization outlet 1031b and the inner wall of the atomization cylinder 109; the atomization outlet channel is communicated with the annular injection outlet; the driving end of the driving part is in driving connection with the lower end of the rotating shaft 106.
The invention provides a medicament centrifugal atomization device, wherein a foaming agent is conveyed into an atomization layer 1031 enclosed by a flow guide atomization disc 103 through a material inlet by a medicament pump, the flow guide atomization disc 103 is driven by a driving part to rotate at a high speed, the foaming agent is subjected to high-speed shearing atomization under the high-speed rotation centrifugal action and then passes through an atomization cylinder 109, air and the atomized foaming agent are intensively mixed in the process, the air is fully cut into micro bubbles, and uniform and stable micro bubble groups are formed under the full contact and action of the foaming agent and the air, so that the flotation is facilitated.
In this embodiment, the device further comprises a medicament feeding bin 101, wherein the medicament feeding bin 101 is installed on an installation hole at the top end of the atomizing cylinder 109; the medicament feeding bin 101 is provided with a feeding port, and the lower end of the medicament feeding bin 101 is provided with an annular feeding port 1011; the annular feed inlet 1011 is correspondingly positioned at the upper end of the material distribution channel and is communicated with the material distribution channel.
By adopting the technical scheme, the annular feed inlet 1011 arranged at the lower end of the medicament feed bin 101 can effectively disperse the medicament in the medicament pump into the flow guide atomizing disc 103, and can efficiently and quickly disperse and atomize the medicament.
Preferably, the flow-guiding atomizing disk 103 has a predetermined thickness and is arranged in a manner of gradually reducing the outer diameter from the position close to the two ends to the end part; a flow guide long hole 1030 is formed in the flow guide atomizing disc 103 along the radial direction; a plurality of short diversion holes 1032 are obliquely formed from the upper surface and the lower surface of the diversion atomizing disk 103 to the diversion long holes 1030, and inlets of the short diversion holes 1032 are inclined towards the atomizing inlet 1031a side.
In this embodiment, the atomizing device further includes an atomizing screen 104, the atomizing screen 104 is cylindrical, the atomizing screen 104 is sleeved at the outer end of the multi-layer flow-guiding atomizing disk 103, and the upper end of the atomizing screen corresponds to the position of the atomizing outlet 1031b and the screen hole fixed on the inner wall of the top of the atomizing cylinder 109.
Atomizing sieve 104 can be further fully cut into miniature bubble with the medicament, can disperse the atomizing to the medicament high-efficiently fast.
In this embodiment, the secondary atomization shearing structure further includes a horn disk 163 and a split shearing flow channel b161, the horn disk 163 is provided with a channel along the radial direction, an inlet of the channel is communicated with the atomization outlet 1031b, the split shearing flow channel b161 is provided in the channel, and an outlet of the channel is provided with a sudden expansion atomization cavity 162.
By adopting the technical scheme, the invention further shears and cuts and crushes bubbles with larger granularity under negative pressure through the flow dividing and shearing channel b161 and the sudden expansion atomizing cavity 162, and finally forms uniform and stable micro-bubble groups under the full contact and action of the foaming agent and air, thereby being beneficial to flotation.
A flotation complete set of equipment based on shearing atomization comprises the medicament centrifugal atomization device, a double-wheel jet stirring device and a high-speed shearing emulsification device;
the upper part of the double-wheel jet stirring mechanism is provided with an ore pulp circulating feeding port, an emulsifier inlet and an atomization inlet, the lower end of the double-wheel jet stirring mechanism is provided with an ore pulp circulating discharging port 519, and the atomization inlet is communicated with an atomization outlet 1031b or a sudden expansion atomization cavity 162 through an atomized medicament adding pipe 5315; the emulsifier inlet is communicated with the high-speed shearing emulsifying device through a collector adding pipe 5314; the ore pulp circulating feed inlet is communicated with the ore pulp circulating discharge outlet 519 through a circulating pump 520 through an ore pulp circulating feed pipe 5317.
Further, the double-wheel jet stirring device comprises a flotation tank 51, a support frame, a pretreatment bin 5311, a rotating connecting rod 5342, a driving impeller 5341, a stirring impeller 5343 and a guide cylinder 532;
the supporting frame is arranged at an opening at the upper end of the flotation tank 51; the lower end of the pretreatment bin 5311 is fixed with the support frame, the side wall of the pretreatment bin 5311 is connected with an annular jet nozzle 5312, the lower end of the pretreatment bin 5311 is provided with a discharge port, and the discharge port is fixed with the upper end of the guide cylinder 532; the upper end of the rotary connecting rod 5342 is rotatably connected with the top end of the pretreatment bin 5311 through a bearing, and the lower end thereof passes through the discharge port and extends to the lower part of the guide cylinder 532; the driving impeller 5341 is fixed on a rotary connecting rod 5342 in the pretreatment bin 5311 and corresponds to the annular jet nozzle 5312 in position; the stirring impeller 5343 is fixed at the lower end of the rotary connecting rod 5342, and the ore pulp circulating discharge port 519 is arranged at the bottom of the flotation tank 51; the annular jet nozzle 5312 comprises an outer nozzle 5312a and an inner nozzle 5312b nested inside the outer nozzle 5312a, and the inner nozzle 5312b is communicated with a pulp circulating feeding pipe 5317; the atomized medicament adding pipe 5315 is communicated with the outer nozzle 5312 a; the collector adding pipe 5314 serves as an injected pipe and is communicated with the ore pulp circulating feeding pipe 5317, and the outlet end of the circulating pump 520 is connected and communicated with the ore pulp circulating feeding pipe 5317.
The invention adopts a double-impeller stirring mode, the circulating pump 520 circulates ore pulp through the pump, the circulating ore pulp is ejected from the annular jet nozzle 5312 to provide a power source for driving the impeller 5341, the driving impeller 5341 serves as a stirring mechanism for primary mixing and stirring in the pretreatment bin 5311, and liquid ejected from the annular jet nozzle 5312 can be used for driving the rotary connecting rod 5342 and the stirring impeller 5343 to rotate; the stirring impeller 5343 can form secondary stirring and mixing, the power of the circulating pump 520 can be fully utilized, the energy waste caused by submerged injection of the jet type flotation machine is avoided, the energy is further effectively utilized, the double-impeller design is adopted, the stirring is more uniform, and the flotation effect is better.
In this embodiment, double round of spraying agitating unit still includes scraper blade mechanism, and scraper blade mechanism includes pivot support 52, scraper blade pivot 514 and scraper blade 513, pivot support 52 sets up flotation cell 51 upper end, scraper blade pivot 514 sets up on the pivot support 52, just the driving motor output 515 fixed connection of scraper blade pivot 514 one end and outside setting, equipartition fixed mounting is a plurality of on the scraper blade pivot 514 scraper blade 513, scraper blade 513 is located the top in concentrate enrichment district.
The ore pulp enters the flotation tank 51 through the ore pulp inlet 511 by the pump body and is discharged through the ore pulp outlet 512, the ore pulp pumped from the ore pulp circulation discharge port 519 is pumped into the ore pulp circulation feeding pipe 5317 by the circulation pump, the emulsified collector in the collector adding pipe 5314 is injected at the same time, so that the ore pulp and the collector are fully mixed and act firstly, the hydrophobicity of the surface of the mineral is changed, the mineral is sprayed out through the inner nozzle 5312b, then the atomized foaming agent in the atomized medicament adding pipe 5315 is sucked in under the injection action, the inside of the outer nozzle 5312a is fully mixed with the modified ore pulp, then the high-speed annular space jet nozzle 5312 is sprayed out by impact to drive the impeller 5314 to rotate, so as to drive the rotating connecting rod 5342 to rotate, the ore pulp thrown out by the impeller 5314 to carry out secondary pulp mixing under the rotating and stirring action of the centrifugal stirring sieve 5344, so that the three phases of gas, liquid and solid are fully mixed and dispersed, and, the concentrated high-ash fine mud and the concentrate which is not scraped out and desorbed from the bubbles are downwards deposited to a concentrate enrichment area 517 and sink to the lower part of the diversion baffle 516, pass through the diversion baffle 516 and return to the mineralization flotation area again to participate in flotation again; and the circulating ore pulp is pumped into the ore pulp circulating feeding pipe 5317 again by the circulating pump 520 through the ore pulp circulating discharging hole 519 to realize circulating flotation.
The high-speed shearing emulsifying device in the embodiment comprises an emulsifying tank 22, a medicament spray head 23, a fixed gear 25, a rotary gear 26 and a transmission belt 34;
the bottom of the emulsifying tank 22 is provided with an emulsifying agent outlet; the emulsifier inlet is communicated with the emulsifier outlet;
the reagent sprayer 23 is arranged at the top end of the emulsifying tank 22, a sprayer inlet close to the reagent sprayer 23 is connected with a water flow injection pipe 24, and a sprayer outlet of the reagent sprayer 23 is positioned in the emulsifying tank 22 and is used for spraying a mixed liquid of a collecting agent and water into the emulsifying tank 22;
the fixed gear disk 25 is arranged in the emulsifying tank 22, and the top end of the fixed gear disk is provided with a mixed liquid inlet which is fixed and communicated with the spray head outlet;
the rotary fluted disc 26 is arranged in the emulsifying tank 22, the rotary fluted disc 26 and the fixed fluted disc 25 are oppositely arranged, and a shearing flow channel 262 which is communicated with the nozzle outlet and the emulsifying tank 22 and has a sawtooth-shaped longitudinal section is formed between the rotary fluted disc 26 and the fixed fluted disc 25;
one end of the transmission belt 34 is connected with the driving portion, and the other end is connected with the transmission rotating shaft 27, and the transmission rotating shaft 27 is installed at the bottom of the emulsifying tank 22 through a bearing and is fixedly connected with the bottom end of the rotating fluted disc 26.
According to the invention, the collecting agent is conveyed into the emulsifying tank 22 at a high speed by the reagent spray head 23 under the action of the reagent pump, water is sucked by the water flow injection pipe 24 under the injection action of high-speed collecting agent liquid, the suction amount of the water can be adjusted according to the feeding amount of the collecting agent, the mixed liquid is uniformly distributed to the shearing flow channel 262, the rotary fluted disc 26 rotates at a high speed under the drive of the drive part, the mixed liquid in the shearing flow channel is fully mixed and emulsified under the high-speed shearing action, the emulsifying effect is good, and the emulsified collecting agent is injected and added into the ore pulp circulating feeding pipe 5317 through the collecting agent adding pipe 5314 to fully react with the ore pulp.
Further, the driving part comprises a permanent magnet eddy current flexible transmission speed regulating device 32 and a speed compensation motor 31;
the driving rotor of the permanent magnet eddy current flexible transmission speed regulating device 32 is fixedly connected with the rotating connecting rod 5342, the rotating shaft at the upper end of the speed compensation motor 31 is in transmission connection with the rotating shaft 106, the rotating shaft at the lower part of the speed compensation motor 31 is fixedly connected with the driven rotor of the permanent magnet eddy current flexible transmission speed regulating device 32, the rotating shaft at the upper part of the speed compensation motor 31 is provided with a belt pulley 33, and the belt pulley 33 is in transmission connection with the transmission rotating shaft 27 through a transmission belt.
The invention has the following beneficial effects:
1. the method integrates foaming agent atomization, collecting agent emulsification, pre-slurry mixing and flotation, and greatly reduces equipment volume and floor area.
2. The invention is provided with the speed compensation motor 31, and the energy consumption of jet flow is greatly reduced on the basis of meeting the requirements of flotation size mixing by controlling reasonable jet driving rotating speed and dynamic speed compensation of the speed compensation motor.
3. According to the invention, the action mode of the collecting agent and the ore pulp is fully considered, the collecting agent is emulsified by designing the high-speed shearing emulsifying device, and meanwhile, the collecting agent is pre-reacted with the ore pulp through the injection effect, so that the hydrophobicity of the surface of the mineral is changed, and a good adsorption interface is provided for efficient mineralization with bubbles.
4. In consideration of the action mode of the atomized foaming agent on the generation of bubbles, the invention designs the medicament centrifugal atomization device to enable the foaming agent to be atomized in advance and then to be contacted with air, so that the broken bubbles can be in a restraining and merging atmosphere, the stability of a micro-bubble system is kept, and meanwhile, the micro-bubble system is more balanced through multi-stage shearing and turbulent mixing, sufficient contact opportunity is provided for efficient mineralization of the bubbles, the mineralization efficiency is greatly improved, and the flotation effect is improved.
5. The annular jet nozzle 5312 performs multi-stage injection; the emulsification collector and the ore pulp are firstly acted through the injection action of the inner nozzle 5312b, the hydrophobicity is changed, a good adsorption interface is provided, then the micro-bubble group and the modified ore pulp are uniformly mixed through the injection action of the outer nozzle 5312a, and efficient pre-pulp mixing of bubbles and the ore pulp is realized. Meanwhile, the energy of the annular jet nozzle 5312 is used for driving the impeller 5341 to rotate, so that energy waste caused by submerged injection of the jet flotation machine is avoided, and the energy is further effectively utilized.
6. The high-speed shearing emulsifying device is provided with the shearing flow channel consisting of the circular shearing teeth and the rotary fluted disc capable of rotating at high speed, so that the high-efficiency emulsification of the medicament and water is realized in the circumferential direction, and meanwhile, the smooth discharge in the radial direction can be realized.
7. The medicament centrifugal atomization device provided by the invention realizes high-speed rotation of the rotating shaft by utilizing the action of high-speed centrifugation, so that efficient atomization of a foaming agent in the atomization rotating disc is realized, and meanwhile, the secondary atomization shearing mechanism is arranged, and multistage atomization of the medicament is realized by utilizing shearing force and negative pressure vortex action.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The medicament centrifugal atomization device is characterized by comprising a driving part, an atomization barrel (109), a material distribution barrel (102) positioned in the atomization barrel (109), a rotating shaft (106), a support chassis (108) and a multilayer flow guide atomization disc (103);
the atomizing cylinder (109) is fixed through a support, the top end of the atomizing cylinder is provided with a feeding port, and the lower part of the atomizing cylinder is provided with an annular injection outlet; the supporting chassis (108) is fixed at the lower part of the rotating shaft (106); the material distribution barrel (102) is sleeved on the outer side of the rotating shaft (106), the lower end of the material distribution barrel (102) is fixed on the supporting chassis (108) and forms a material distribution channel with the rotating shaft (106), and the upper end of the material distribution channel is communicated with the feeding port; the rotating shaft (106) is mounted at the lower part of the material separating barrel (102) through a bearing, and the lower end of the rotating shaft extends out of the material separating barrel (102);
the material distribution barrel (102) is provided with a plurality of groups of material distribution holes along the axial direction; a plurality of layers of the flow-guiding atomizing disks (103) are fixed on the outer side of the material distribution barrel (102), an atomizing layer (1031) is formed between each layer of the flow-guiding atomizing disks (103), and the atomizing layer (1031) is provided with an atomizing inlet (1031a) and an atomizing outlet (1031 b); the atomization inlet (1031a) corresponds to the material distribution hole; an atomization outlet channel is arranged between the atomization outlet (1031b) and the inner wall of the atomization barrel (109); the atomization outlet channel is communicated with the annular injection outlet; the driving end of the driving part is in driving connection with the lower end of the rotating shaft (106).
2. The centrifugal atomization device for the medicament is characterized by further comprising a medicament feeding bin (101), wherein the medicament feeding bin (101) is mounted on a mounting hole at the top end of the atomization cylinder (109); the medicament feeding bin (101) is provided with a feeding port, and the lower end of the medicament feeding bin (101) is provided with an annular feeding port (1011); the annular feed inlet (1011) is correspondingly positioned at the upper end of the material distribution channel and is communicated with the material distribution channel.
3. The centrifugal atomization device for the medicament according to claim 1, characterized by further comprising an atomization screen (104), wherein the atomization screen (104) is cylindrical, the atomization screen (104) is sleeved at the outer side end of the multi-layer flow guide atomization disc (103), the upper end of the atomization screen is fixed with the inner wall of the top of the atomization cylinder (109), and the screen holes on the atomization screen correspond to the positions of the atomization outlets (1031 b).
4. A centrifugal atomizer according to any one of claims 1-3, wherein said flow-guiding atomizer disk (103) has a predetermined thickness and is arranged with a gradually decreasing outer diameter from the end to the end near the two ends; a flow guide long hole (1030) is formed in the flow guide atomizing disc (103) along the radial direction; a plurality of short flow guide holes (1032) are obliquely formed from the upper surface and the lower surface of the flow guide atomizing disc (103) to the position of the long flow guide hole (1030), and the inlet of each short flow guide hole (1032) inclines towards the atomizing inlet (1031 a).
5. The centrifugal atomizing device for the medicine according to claim 4, characterized in that the secondary atomizing shearing structure comprises a horn disc (163) and a split shearing flow passage b (161), the horn disc (163) is provided with a channel along a radial direction, an inlet of the channel is communicated with the atomizing outlet (1031b), the split shearing flow passage b (161) is arranged in the channel, and an outlet of the channel is provided with a sudden-expansion atomizing cavity (162).
6. A flotation plant based on shear atomization, characterized by comprising a centrifugal atomization device of the agent, a double-wheel jet stirring device and a high-speed shear emulsification device according to claim 5;
the upper part of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating feeding port, an emulsifier inlet and an atomization inlet, the lower end of the double-wheel spraying and stirring mechanism is provided with an ore pulp circulating discharging port (519), and the atomization inlet is communicated with an atomization outlet (1031b) or the sudden expansion atomization cavity (162) through an atomized medicament adding pipe (5315); the emulsifier inlet is communicated with the high-speed shearing emulsifying device through a collector adding pipe (5314); the ore pulp circulating feed inlet is communicated with the ore pulp circulating discharge outlet (519) through a circulating pump (520) through an ore pulp circulating feed pipe (5317).
7. The flotation plant based on shear atomization according to claim 6, characterized in that the double-wheel jet stirring device comprises a flotation tank (51), a support frame, a pretreatment bin (5311), a rotating connecting rod (5342), a driving impeller (5341), a stirring impeller (5343) and a guide cylinder (532);
the support frame is arranged at an opening at the upper end of the flotation tank (51); the lower end of the pretreatment bin (5311) is fixed with the support frame, an annular jet nozzle (5312) is connected to the side wall of the pretreatment bin, a discharge opening is formed in the lower end of the pretreatment bin (5311), and the discharge opening is fixed with the upper end of the guide cylinder (532); the upper end of the rotary connecting rod (5342) is rotatably connected with the top end of the pretreatment bin (5311) through a bearing, and the lower end of the rotary connecting rod passes through the discharge port and extends to the lower part of the guide cylinder (532); the driving impeller (5341) is fixed on the rotating connecting rod (5342) in the pretreatment bin (5311) and corresponds to the annular jet nozzle (5312) in position; the stirring impeller (5343) is fixed at the lower end of the rotating connecting rod (5342), and the ore pulp circulating discharge hole (519) is arranged at the bottom of the flotation tank (51); the annular jet nozzle (5312) comprises an outer nozzle (5312a) and an inner nozzle (5312b) nested inside the outer nozzle (5312a), and the inner nozzle (5312b) is communicated with the pulp circulation feeding pipe (5317); the atomized medicament adding pipe (5315) is communicated with the outer nozzle (5312 a); the collector adding pipe (5314) is used as an injected pipe and communicated with the ore pulp circulating feeding pipe (5317), and the outlet end of the circulating pump (520) is connected and communicated with the ore pulp circulating feeding pipe (5317).
8. The flotation plant based on shear atomization of claim 7, characterized in that the double-wheel jet stirring device further comprises a scraper mechanism, the scraper mechanism comprises a rotating shaft support (52), a scraper rotating shaft (514) and a scraper (513), the rotating shaft support (52) is arranged at the upper end of the flotation tank (51), the scraper rotating shaft (514) is arranged on the rotating shaft support (52), one end of the scraper rotating shaft (514) is fixedly connected with an external driving motor output end (515), the scraper rotating shaft (514) is uniformly and fixedly provided with a plurality of scrapers (513), and the scrapers (513) are located above the concentrate enrichment area.
9. A flotation plant based on shear atomization according to claim 7, characterized in that the high-speed shear emulsification device comprises an emulsification tank (22), a reagent spray head (23), a fixed toothed disc (25), a rotating toothed disc (26) and a transmission belt (34);
the bottom of the emulsifying tank (22) is provided with an emulsifier outlet; the emulsifier inlet is communicated with the emulsifier outlet;
the chemical sprayer (23) is installed at the top end of the emulsifying tank (22), a sprayer inlet close to the chemical sprayer (23) is connected with a water flow injection pipe (24), and a sprayer outlet of the chemical sprayer (23) is located in the emulsifying tank (22) and used for spraying a mixed liquid of a collecting agent and water into the emulsifying tank (22);
the fixed gear disc (25) is arranged in the emulsifying tank (22), and the top end of the fixed gear disc is provided with a mixed liquid inlet which is fixed and communicated with the spray head outlet;
the rotating fluted disc (26) is arranged in the emulsifying tank (22), the rotating fluted disc (26) and the fixed fluted disc (25) are oppositely arranged, and a shearing flow channel (262) which is communicated with the nozzle outlet and the emulsifying tank (22) and has a sawtooth-shaped longitudinal section is formed between the rotating fluted disc (26) and the fixed fluted disc (25);
drive belt (34) one end with the drive division is connected, and transmission pivot (27) are connected to the other end, install through the bearing in transmission pivot (27) the tank bottom of emulsion groove (22) and with rotatory fluted disc (26) bottom fixed connection.
10. A shear atomization based flotation plant according to claim 9, the drive section comprising a permanent magnet eddy current flexible transmission governor device (32) and a speed compensation motor (31);
the driving rotor of the permanent magnet eddy current flexible transmission speed regulation device (32) and the rotating connecting rod (5342) are fixedly connected, the upper end rotating shaft of the speed compensation motor (31) is in transmission connection with the rotating shaft (106) through a first gearbox (107), the lower portion rotating shaft of the speed compensation motor (31) is in fixed connection with the driven rotor of the permanent magnet eddy current flexible transmission speed regulation device (32), the lower end of the transmission rotating shaft (27) is provided with a second gearbox (21) and is connected with the output end of the second gearbox (21), the input end of the second gearbox (21) is provided with a belt pulley (33), the belt pulley (33) is passed through the transmission belt (34) and the speed compensation motor (31) are in transmission connection.
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CN112691793B (en) * 2021-01-25 2023-05-16 江苏恒旺数字科技有限责任公司 Intelligent flotation machine and use method
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CN114768656A (en) * 2022-06-02 2022-07-22 河北万岁药业有限公司 External application medicament mixing apparatus for orthopedics
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