CN102151617B - Pneumatic flotation machine with mechanical stirring - Google Patents
Pneumatic flotation machine with mechanical stirring Download PDFInfo
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- CN102151617B CN102151617B CN 201010609197 CN201010609197A CN102151617B CN 102151617 B CN102151617 B CN 102151617B CN 201010609197 CN201010609197 CN 201010609197 CN 201010609197 A CN201010609197 A CN 201010609197A CN 102151617 B CN102151617 B CN 102151617B
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Abstract
The invention discloses a pneumatic flotation machine with mechanical stirring, which comprises a cylindrical tank body flotation chamber, wherein a foam product collecting chute is closely fastened on the outer side of the upper end of the flotation chamber, and the outer side of the foam product collecting chute is connected with a concentrate pipe; a hollow shaft connected with a driving device is arranged in the flotation chamber, and the hollow shaft is fixed on the support through a bearing and bearing blocks, a bearing housing is arranged between the bearing blocks, an air inlet formed on the bearing housing is connected with an air inlet pipe, and an air inlet is formed on a hollow shaft corresponding to the bearing housing; the lower end of the hollow shaft is connected with a rotor which has an air outlet, and a stator is arranged on the outer side of the rotor; a feed tank is hoisted on the upper part of the flotation chamber, the feed tank is a tank body with an annular cavity, the annular tank body surrounds the outside of the hollow shaft, a feed inlet is formed on the upper part of the feed tank, and discharging nozzles are uniformly arranged on the lower part of the feed tank; and a tailing chamber is formed at the bottom part of the flotation chamber, and the tailing chamber is communicated with a tailing tank through a pipe. The machine is efficient, energy-saving and very adaptable and is long in service life and low in production cost.
Description
Technical field
The invention belongs to the cleaning unit technical field, particularly a kind of air pressing type mechanical agitation flotation device.
Background technology
Along with the change of coal mining mode, the slime content proportion increases greatly.Country discharges from the control index the discharging of black water for the consideration to environmental protection, has developed into and has forbidden to discharge, and forces coal preparation plant's slime water system to reach coupling and perfect, realizes wash water closed circuit (zero-emission).For realizing this goal, the coal preparation plant that the seventies in 20th century and the eighties build up constantly transforms, brings in constant renewal in floatation equipment.Simultaneously, the develop rapidly of coal in China dressing of coal by washing engineering, the amount of washing is gone in coal separation constantly to be increased, and factory's type scale, is progressively developed more than hour going into to wash the ability kiloton from hour going into to wash tens tons of abilities or hundred tons progressively to super-huge development by small-sized, middle-size and small-size, large-scale.Because factory's type scale to super-huge development, also forces coal washing equipment to large scale development.
For obtaining large-scale floatation equipment efficiently, current trend has two kinds: first kind is the large-scale flotation sophisticated equipment of high, precision and frontier by introduction, digestion, reference and improved principle research and development independent intellectual property right; Second kind is to introduce external advanced floatation equipment, but expensive, maintenance difficult causes the production use cost too high.
At present, common floatation equipment has square groove body multicell group mechanical agitation to suck three kinds of air type flotation device, air jet flotation machine and flotation columns.
The defective that traditional square groove body multicell group mechanical agitation sucks the existence of air type flotation device is: cause negative pressure to realize owing to suck air by impeller stirring ore pulp, cell body is crossed and is taken an advanced study into the negative pressure value increasing, stirring intensity improves, strengthening stirring intensity will expanded motor power, the equipment infusion of financial resources is more, and power consumption is big.Therefore, the cell body height of such flotation device is severely limited, and so just makes that mineralising district and sorting regional boundary limit is not clear, makes that the branch constituency is interfered.Finally, hindered side's cell body multicell group mechanical agitation sucks the air type flotation device to large scale development more.
Air jet flotation machine is to suck on the air type flotation device basis in square groove body multicell group mechanical agitation, utilize pump that ore pulp is sprayed by injector head, ore pulp is sent to the cell body bottom by hollow pipe and reaches mineralising by the umbrella shape disperser, air sprays by injector head and forms the negative pressure suction, and enter cell body simultaneously with ore pulp, injector head also makes medicament obtain emulsification in course of injection.The mineralization process of this machine is to finish in the cell body bottom, rises to the branch constituency then and reaches static sorting, has the defective that flotation time is long, the efficiency of separation is low, effective depth is little and the cell body volume is little.
Flotation column is the monomer cylinder, no rabbling mechanism, and by the pump circulation, its operation principle and air jet flotation machine are similar a bit, namely rely on to spray to form negative pressure, suck air, and through cutting apart the formation micro-bubble, coal slurry arrives the constituency, top through mineralising and carries out sorting.The shortcoming of flotation column is: cylinder is tall and big, and poor to 0.5 ~ 0.125mm stage material sorting function, disposal ability is poor, adaptability a little less than.
In sum, the floatation equipment of domestic use exists that disposal ability is low, adaptability is weak, amount of consumption of drugs is big, bulky, take that the factory building space is big, power consumption big, serious wear, service life is short, auxiliary equipment is many, maintenance capacity is big, production cost is high and automaticity is low shortcoming.
Summary of the invention
The purpose of this invention is to provide that a kind of energy-efficient, adaptability is strong, long service life and the low air pressing type mechanical agitation flotation device of production cost.
For achieving the above object, technical scheme of the present invention is: a kind of air pressing type mechanical agitation flotation device, comprise cylindrical groove flotation body chamber, the airtight spiral-lock in the outside, flotation cell upper end has foam product to concentrate chute, foam product concentrates chute to have ring cavity, and foam product concentrates the chute outside to link to each other with the cleaned coal pipeline; Be provided with the hollow shaft that links to each other with drive unit in the flotation cell, hollow shaft top is fixed on the bearing above the concentrated chute of foam product by bearing and bearing block, be provided with bearing outside between the bearing block, the air inlet of offering on the bearing outside links to each other with air inlet pipe, offers air admission hole on the hollow shaft corresponding with bearing outside; The hollow shaft lower end is connected with rotor, and rotor is provided with venthole, and the rotor outside is provided with stator; Flotation cell top is lifted with feed box, and feed box is the casing with ring cavity, and ring-shaped box is looped around the hollow shaft outside, and feed box top is provided with charging aperture, bottom and at least evenly is laid with two discharging mouths; The flotation cell bottom is provided with the mine tailing chamber, and the mine tailing chamber is connected with the mine tailing case by connecting pipe.
Described flotation cell upper end offers the foam product of concentrating the cavity of chute to link to each other with foam product and collects chute.
It is the inclined-plane that described foam product is concentrated the chute bottom surface, and the bottom surface lowest part is connected with the cleaned coal pipeline.
Described stator comprises ring-shaped base, and base is provided with the guide vane of circle distribution; Rotor comprises cylindrical pedestal, is evenly equipped with " L " shape impeller on the pedestal outer circumference surface, and every impeller is corresponding with the venthole on the pedestal periphery.
Described drive unit comprises motor, small pulley and big belt wheel and driving-belt thereof, and motor is fixed on the spandrel girder above the concentrated chute of foam product, and big belt wheel links to each other with the hollow shaft upper end.
Described mine tailing box top is provided with tank level control system and servomotor, inside are provided with the mushroom control valve, the bottom is provided with the mine tailing outlet, and mine tailing outlet top is provided with side opening; Mine tailing lower box part inboard is provided with corrosion protective covering.
Described flotation cell bottom is provided with support, is provided with cast stone or rubber lining between support and the flotation cell bottom.
Be provided with the froth bed detector in the described flotation cell.
Described drive unit outside is provided with protective cover.
Microvesicle is the most basic theory of floatation process, the more little surface strength of microvesicle is more big, and the short time can not break, and the cleaned coal particle that a plurality of microvesicles are carried the agent mineralising that is captured secretly floats to the ore pulp surface and overflows, and spill in (perhaps scraping) concentrate hopper, realize high-quality, high efficiency flotation.
Floatation process of the present invention is: in charging aperture entered into feed box, coal slurry was by six discharging mouths feed in the flotation cell from preprocessor or distributor for the coal slurry for the treatment of flotation; Coal grain in the coal slurry under the gravity effect, slowly downwards sedimentation, drive unit drives hollow shaft and rotor rotation; Meanwhile, compressed air is in the cavity of hollow shaft enters into the cylindrical pedestal of rotor and ejection, compressed air and the coal slurry of ejection contacts mixing in the annular space of the guide vane formation of the impeller of rotor and stator, formation flows to the powerful radial flow of flotation cell inwall, and produce the brute force flow to below the impeller and reflux, avoid the coal grain to deposit in the bottom, in addition, impeller makes the coal slurry recirculation flow that flows to its top, is distributed to the various piece of flotation cell after the stator rectification; The bubble stream that rises in flotation cell and the coal slurry stream that descends are done relative motion, bubble will pass coal slurry stream could arrive the coal slurry surface, do in the reverse movement process at coal slurry and bubble, coal grain and bubble are in contact with one another and collide, with high probability generation combination; In coal grain and bubble cohesive process, the continuous mineralising of bubble, the bubble of mineralising steadily is raised to the coal slurry surface, form stable froth bed, when froth bed reaches certain thickness, the foam product overflow enters the concentrated chute of foam product and discharges through the cleaned coal pipeline, and flotation tailing is discharged by mine tailing chamber to mine tailing case, finishes the coal slurry flotation.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention includes flotation cell, drive unit, agitating device, feed box and mine tailing case, contact mixing in the compressed air that sprays in the cylindrical pedestal of rotor and the annular space of coal slurry between rotor and stator, formation flows to the powerful radial flow of flotation cell inwall, and produce the brute force flow to below the impeller and reflux, avoid the coal grain to deposit in the bottom, in addition, impeller makes the coal slurry recirculation flow that flows to its top, after the stator rectification, be distributed to the various piece of flotation cell, do not have mineralising, flotation blind area; The bubble stream that rises in flotation cell and the coal slurry stream that descends are done relative motion, bubble will pass coal slurry stream could arrive the coal slurry surface, do in the reverse movement process at coal slurry and bubble, coal grain and bubble are in contact with one another and collide, its probability that combination takes place is high, flotation capacity is strong, the production efficiency height; In coal grain and bubble cohesive process, the continuous mineralising of bubble, the bubble of mineralising steadily is raised to the coal slurry surface, form stable froth bed, when froth bed reached certain thickness, the foam product overflow entered the concentrated chute of foam product and discharges through the cleaned coal pipeline, flotation tailing is discharged by mine tailing chamber to mine tailing case, finish the coal slurry flotation, above-mentioned floatation process can demonstrate fully this machine disposal ability greatly to be strengthened, and has improved adaptability; Mixing in floatation process, combination have fully reduced amount of consumption of drugs; This machine compact conformation, the cell body volume is big, auxiliary equipment is few, maintenance capacity is little, and equipment is simplified greatly, under the same volume situation, can save plant area 35～60%, and weight saving 15～35% has reduced power consumption, and production cost is low; Simultaneously, owing to taked certain safeguard procedures, reduce wearing and tearing, prolonged service life greatly.
2, flotation cell is cylindrical cell body, makes the coal slurry in the flotation cell any dead angle or blind area can not occur, is in optimum fluid dynamics all the time, can obtain higher bubble mineralization speed, improves flotation effect; The flotation cell groove depth is generally 3800mm, because groove depth strengthens, has increased single groove volume, and treating capacity increases, and flotation device list groove volume is maximized can be accomplished; In addition, because groove depth is bigger, contact very strongly with bubble at the floor coal grain of groove, bubble and coal grain constantly collide, air pocket is sheared into minute bubbles, coal grain and bubble hit probability height, mineralized froth holdup time in flotation cell is long, has lengthened the bubble floating distance, make the flotation mineralization process more abundant, bigger mineralising district is arranged, and make the mineralising district of flotation cell bottom and the flotation area of middle and upper part that certain distance be arranged, make the fierce mineralising district of formation and stable froth zone become possibility.
3, because this flotation device has adopted multiple anticorrosion, wear-resisting measure, parts are effectively protected, wear extent is little, long service life, and maintenance capacity is little, and the life-span of critical piece can extend to more than 3 years.
4, because the flotation bubble mineralization velocity is fast, flotation effect is good, make the present invention can adapt to different coals and wideer particle size range (＜0.5mm), be conducive to the sorting of particulate and superfine granularity, for the high and difficult coal that selects of fine slime content, also can obtain satisfied result, less for different pan feeding concentration affects, adaptability is strong, stable performance, and running is not subject to the influence of operation factors.
5, automaticity height of the present invention can be carried out control automatically and metering to liquid level, air quantity, feeding, concentration and the flotation dosage of coal slurry, makes floatation process more reliable and more stable.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of feed box among Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the structural representation of Fig. 1 middle (center) bearing overcoat and hollow shaft;
Fig. 6 is the structural representation of stator among Fig. 1;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 is the structural representation of Fig. 1 rotor;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the structural representation of mine tailing case among Fig. 1;
Figure 11 is the right view of Figure 10;
Figure 12 is the vertical view of Figure 10.
The specific embodiment
Air pressing type mechanical agitation flotation device as shown in Figure 1, it comprises cylindrical groove flotation body chamber 1, airtight spiral-lock has foam product to concentrate chute 2 in the outside, upper end of flotation cell 1, foam product concentrates chute 2 to have ring cavity, and flotation cell 1 upper end offers the foam product of concentrating the cavity of chute 2 to link to each other with foam product and collects chute 3; It is the inclined-plane that foam product is concentrated the bottom surface of chute 2, is convenient to concentrating of foam product, and the lowest part of its bottom surface is connected with cleaned coal pipeline (not shown), is used for outwards carrying cleaned coal.In flotation cell 1, be provided with the hollow shaft 6 that links to each other with drive unit 5, the top of hollow shaft 6 is fixed on foam product by two cover bearings 7 and bearing blocks 8 and concentrates on the bearing 9 above the chute 2, and bearing 9 is erected at foam product and concentrates between the spandrel girder 10 above the chute 2.As shown in Figure 5, sealing is provided with bearing outside 11 between diaxon bearing 8, and the air inlet of offering on the bearing outside 11 12 links to each other with air inlet pipe 13, is used for carrying compressed air in hollow shaft 6.Offer air admission hole 14 at the hollow shaft 6 corresponding with bearing outside 11, air admission hole 14 evenly is interspersed on hollow shaft 6 peripheries.
Shown in Fig. 1 and Fig. 2,3,4, be lifted with feed box 23 by mast-up 26 at backbar 27 on flotation cell 1 top, be used for temporary transient splendid attire coal slurry.Feed box 23 is for having the casing of ring cavity, and ring-shaped box is looped around hollow shaft 6 outsides, and namely hollow shaft 6 is located in feed box 23 middle parts.Be provided with charging aperture 24, bottom on feed box 23 tops and evenly be laid with six discharging mouths 25, be used in flotation cell 1, spraying and send into coal slurry.In the floatation process, should guarantee discharging mouth 25 in the bottom of flotation cell 1 inner foam layer, to guarantee flotation effect.
As Fig. 1 and Fig. 6, shown in Figure 7, be provided with stator 19 in rotor 15 outsides, stator 19 comprises ring-shaped base 20, and base 20 is provided with the guide vane 21 of circle distribution, and stator 19 is fixedly installed on the stator basis 22 of flotation cell 1 bottom.
As Fig. 1 and Fig. 8, shown in Figure 9, the bottom of flotation cell 1 is stretched in hollow shaft 6 lower ends, lower end at hollow shaft 6 is connected with rotor 15 by flange and bolt, rotor 15 comprises cylindrical pedestal 16, and the periphery of pedestal 16 is provided with a plurality of ventholes 18, uniform a plurality of " L " shape impeller 17 that is connected with on pedestal 16 outer circumference surfaces, form the rotor structure of similar star, every impeller 17 is corresponding with venthole 18, sprays to the impeller 17 change flow directions so that discharge the compressed air of hollow shaft 6, realizes fully mixing.The impeller 17 and the guide vane 21 that rotate are cut apart compressed air, disperse, and play the microfoam flotation effect.
Rotor 15 and stator 19 are made by high-abrasive material.
Shown in Fig. 1 and Figure 10,11,12, be provided with mine tailing chamber 28 in flotation cell 1 bottom, mine tailing chamber 28 is connected with mine tailing case 30 by connecting pipe 29, the liquid level that mine tailing case 30 is used for discharging mine tailing and regulates coal slurry in the flotation cell 1.Be provided with tank level control system 31 and servomotor 32, inside at mine tailing case 30 tops and be provided with two mushroom control valves 33, bottoms and be provided with mine tailing import 34 and mine tailing outlet 35, mushroom control valve 33 is by 32 controls of pneumatic servo motor.Mine tailing exports 35 tops and is provided with side opening 36, is convenient to install and maintenance mine tailing case 30.Mine tailing case 30 is conducive to improve mine tailing and discharges height, is convenient to mine tailing from flowing to the tail coal thickener, has simplified mode of operation.Lower inside at mine tailing case 30 is provided with corrosion protective covering 37, to improve its decay resistance, increases the service life.Simultaneously, in the bottom of mine tailing case 30 and the bottom of drain chamber wear-resisting lining 42 is housed, improves anti-wear performance, increase the service life.
As shown in Figure 1, the drive unit 5 of hollow shaft 6 comprises motor 51, small pulley 52 and big belt wheel 53 and driving-belt 54 thereof, motor 51 is fixed on the spandrel girder 10, big belt wheel 53 links to each other with hollow shaft 6 upper ends, to realize that motor 51 drives the purpose that hollow shaft 6 rotates, simultaneously, hollow shaft 6 drives rotor 15 rotations.Be provided with protective cover 38 in drive unit 5 outsides, be used for the protection purpose, prevent from causing accidental injury.Exterior bottom at flotation cell 1 is provided with support 39, is provided with cast stone or rubber lining 40 between support 39 and flotation cell 1 bottom, to reduce the wearing and tearing of flotation cell 1, increases the service life.In flotation cell 1, be provided with froth bed detector 41, for detection of thickness and the quality thereof of foam product.
In the present embodiment, the parts that are immersed in coal slurry are equipped with protective layer, as: be equipped with protective layer on stator 19 and stator basis 22, rotor 15, feed box 23 and the discharging mouth 25 thereof; Protected by polythene material in hollow shaft 6 outsides.Flotation cell 1 is made by abrasion-resistant stee, to improve its anti-wear performance, to increase the service life; Hollow shaft 6, stator 19, rotor 15, feed box 23 and mine tailing chamber 28 and flotation cell 1 coaxial setting.
Floatation process of the present invention is: in charging aperture 24 entered into feed box 23, coal slurry was by six discharging mouths 25 feed in the flotation cell 1 from preprocessor or distributor for the coal slurry for the treatment of flotation; Coal grain in the coal slurry under the gravity effect, slowly downwards sedimentation, drive unit 5 drives hollow shafts 6 and rotor 15 rotations; Meanwhile, compressed air is in the cavity of hollow shaft 6 enters into the cylindrical pedestal 16 of rotor 15 and ejection, compressed air and the coal slurry of ejection contacts mixing in the annular space of guide vane 21 formations of the impeller 17 of rotor 15 and stator 19, formation flows to the powerful radial flow of flotation cell 1 inwall, and produce the brute forces flow to below the impeller 17 and reflux, avoid the coal grain to deposit in the bottom, in addition, impeller 17 makes the coal slurry recirculation flow that flows to its top, is distributed to the various piece of flotation cell 1 after stator 19 rectifications; The bubble stream that rises in flotation cell 1 and the coal slurry stream that descends are done relative motion, bubble will pass coal slurry stream could arrive the coal slurry surface, do in the reverse movement process at coal slurry and bubble, coal grain and bubble are in contact with one another and collide, with high probability generation combination; In coal grain and bubble cohesive process, the continuous mineralising of bubble, the bubble of mineralising steadily is raised to the coal slurry surface, form stable froth bed, when froth bed reaches certain thickness, the foam product overflow enters the concentrated chute 2 of foam product and discharges through the cleaned coal pipeline, and flotation tailing is discharged by mine tailing chamber 28 to mine tailing case 30, finishes the coal slurry flotation.
The present invention can also set up automatic control system, it is made up of air inflow automatic control system, mineral pulp level automatic control system, can increase pan feeding inductive flowmeter, medicament automatic metering system, ore pulp pan feeding concentration as required and measure automatically and the mine tailing ash measurer.Wherein, the air inflow automatic control system is by flowmeter, Pressure gauge with have feedback pneumatic servo motor-driven pressure-reducing valve and form; The mineral pulp level automatic control system is measured the liquid level of ore pulp and is formed with the work package that has the feedback pneumatic servo system that is connected control valve by ultrasonic wave module.Above-mentioned automatic control system can link to each other with control panel, regulates liquid level and air capacity by control panel.
Be not limited to above-mentioned embodiment: drive unit 5 of the present invention and bearing 7, bearing block 8 and bearing outside 11 also can be located at the below, bottom of flotation cell 1, at this moment, only need imitate the structure of feed box 23, mine tailing chamber 28 is designed to ring-type, allows hollow shaft 6 by getting final product.Like this, not only can shorten the length of hollow shaft 6, guarantee compressed-air actuated pressure, save raw material, and can effectively reduce the complete machine height, compact conformation reduces maintenance difficulty, easy access and maintenance.
Claims (9)
1. air pressing type mechanical agitation flotation device, it is characterized in that: comprise cylindrical groove flotation body chamber, the airtight spiral-lock in the outside, flotation cell upper end has foam product to concentrate chute, and foam product concentrates chute to have ring cavity, and foam product concentrates the chute outside to link to each other with the cleaned coal pipeline; Be provided with the hollow shaft that links to each other with drive unit in the flotation cell, hollow shaft top is fixed on the bearing above the concentrated chute of foam product by bearing and bearing block, be provided with bearing outside between the bearing block, the air inlet of offering on the bearing outside links to each other with air inlet pipe, offers air admission hole on the hollow shaft corresponding with bearing outside; The hollow shaft lower end is connected with rotor, and rotor is provided with venthole, and the rotor outside is provided with stator; Flotation cell top is lifted with feed box, and feed box is the casing with ring cavity, and ring-shaped box is looped around the hollow shaft outside, and feed box top is provided with charging aperture, bottom and at least evenly is laid with two discharging mouths; The flotation cell bottom is provided with the mine tailing chamber, and the mine tailing chamber is connected with the mine tailing case by connecting pipe.
2. air pressing type mechanical agitation flotation device as claimed in claim 1 is characterized in that: described flotation cell upper end offers the foam product collection chute of concentrating the cavity of chute to link to each other with foam product.
3. air pressing type mechanical agitation flotation device as claimed in claim 2 is characterized in that: it is the inclined-plane that described foam product is concentrated the chute bottom surface, and the bottom surface lowest part is connected with the cleaned coal pipeline.
4. as claim 1,2 or 3 described air pressing type mechanical agitation flotation devices, it is characterized in that: described stator comprises ring-shaped base, and base is provided with the guide vane of circle distribution; Rotor comprises cylindrical pedestal, is evenly equipped with " L " shape impeller on the pedestal outer circumference surface, and every impeller is corresponding with the venthole on the pedestal periphery.
5. air pressing type mechanical agitation flotation device as claimed in claim 4, it is characterized in that: described drive unit comprises motor, small pulley and big belt wheel and driving-belt thereof, motor is fixed on the spandrel girder above the concentrated chute of foam product, and big belt wheel links to each other with the hollow shaft upper end.
6. air pressing type mechanical agitation flotation device as claimed in claim 5 is characterized in that: described mine tailing box top is provided with tank level control system and servomotor, inside are provided with the mushroom control valve, the bottom is provided with the mine tailing outlet, and mine tailing outlet top is provided with side opening; Mine tailing lower box part inboard is provided with corrosion protective covering.
7. air pressing type mechanical agitation flotation device as claimed in claim 6 is characterized in that: be provided with support bottom the described flotation cell, be provided with cast stone or rubber lining between support and the flotation cell bottom.
8. air pressing type mechanical agitation flotation device as claimed in claim 7 is characterized in that: be provided with the froth bed detector in the described flotation cell.
9. air pressing type mechanical agitation flotation device as claimed in claim 8, it is characterized in that: described drive unit outside is provided with protective cover.
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| CN 201010609197 CN102151617B (en) | 2010-12-28 | 2010-12-28 | Pneumatic flotation machine with mechanical stirring |
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| CN 201010609197 CN102151617B (en) | 2010-12-28 | 2010-12-28 | Pneumatic flotation machine with mechanical stirring |
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| CN102151617A CN102151617A (en) | 2011-08-17 |
| CN102151617B true CN102151617B (en) | 2013-08-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106493000B (en) * | 2016-10-28 | 2018-06-19 | 河南理工大学 | A kind of bottom driving type lab flotation cell |
| CN110575903A (en) * | 2019-08-27 | 2019-12-17 | 西安中原机械有限公司 | Process for extracting clean coal from middlings |
| CN113926595A (en) * | 2021-09-24 | 2022-01-14 | 楚雄滇中有色金属有限责任公司 | Flotation machine for ore dressing |
| CN116532246B (en) * | 2023-06-26 | 2023-11-14 | 内蒙古恒河科技有限公司 | Coal briquette circulation flotation equipment with froth flow guiding and separating function |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI67185C (en) * | 1983-11-18 | 1985-02-11 | Outokumpu Oy | FLOTATIONSMASKIN |
| CN2038026U (en) * | 1988-10-07 | 1989-05-24 | 陈石 | Rotar aeration floatation equipment |
| US5591327A (en) * | 1993-12-09 | 1997-01-07 | Walters; Jeremy P. A. | Flotation equipment |
| FI115612B (en) * | 1999-12-30 | 2005-06-15 | Outokumpu Oy | Device for flotation machine |
| CN2873313Y (en) * | 2006-01-17 | 2007-02-28 | 中国地质科学院郑州矿产综合利用研究所 | Flotation machine |
| CN201493173U (en) * | 2009-08-07 | 2010-06-02 | 洛阳昶威机械制造安装有限公司 | Twin-turbofan direct pneumatic flotation machine |
| CN201997386U (en) * | 2010-12-28 | 2011-10-05 | 中平能化集团天工机械制造有限公司 | Compressed-air type mechanical stirring flotation machine |
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