CN101293227B - Ring shaped air flotation machine - Google Patents
Ring shaped air flotation machine Download PDFInfo
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- CN101293227B CN101293227B CN2008100585560A CN200810058556A CN101293227B CN 101293227 B CN101293227 B CN 101293227B CN 2008100585560 A CN2008100585560 A CN 2008100585560A CN 200810058556 A CN200810058556 A CN 200810058556A CN 101293227 B CN101293227 B CN 101293227B
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- ore
- concentrate
- flotation machine
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- 238000005188 flotation Methods 0.000 title claims abstract description 69
- 239000012141 concentrate Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000004576 sand Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 11
- 239000011707 mineral Substances 0.000 abstract description 11
- 230000002209 hydrophobic effect Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000002000 scavenging effect Effects 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 17
- 238000011084 recovery Methods 0.000 description 9
- 238000013019 agitation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005273 aeration Methods 0.000 description 6
- 238000007667 floating Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000009291 froth flotation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a mineral flotation device which can generate bubbles by pressing air in and is provided with a ring-shaped combined structure, namely, a ring-shaped pneumatic flotation machine. The pneumatic flotation machine consists of sorting columns, an air pressing type bubble generator, a ring-shaped froth paddle mechanism and a process ore pulp lifting pipe; a plurality of sorting columns are combined to form a ring shape. Ore pulp is fed into a feed port of one sorting column, ore grains subside downwards, while bubbles raise upwards; in this way, the ore grains with hydrophobic property is prepared into rough concentrate through flotation, and then the rough concentrate is sent into fine selection sorting columns for a plurality of times of fine selection to obtain ore concentrate finally. The ore grains with hydrophilicity flow downwards with the ore pulp, pass through the process ore pulp lifting pipe and enter scavenging sorting columns for a plurality of times of scavenging to obtain mine tailing finally. The ring-shaped pneumatic flotation machine of the invention has the advantages of low energy consumption and abrasion, large inflating volume, high probability of collision and attachment between ore grains and bubbles, flexible adjustment of the times and period of fine selection and scavenging and large range of sorting granularity, so as to be an excellent device for mineral flotation, separation and upgrading.
Description
Technical field
The present invention relates to the Mineral Processing Engineering technical field, specifically a kind of employing is pressed into air and produces bubble, mineral floating equipment--the ring shaped air flotation machine with annular combining structure.
Background technology
Flotation device is to realize mineral floating enrichment and the visual plant that separates.The quality of flotation technology economic indicator, closely related with used floatation equipment.Known floatation equipment kind is a lot, mainly is divided into agitation impeller flotator, inflation agitation type flotation machine, pneumatic flotation cell.For agitation impeller flotator, the introducing of air is rotated the generation negative pressure at a high speed by agitator arm and is realized, when stirring intensity hangs down, the vacuum that produces is low, the air capacity deficiency of introducing, and flotation recovery rate is not high, when stirring intensity was high, mechanical wear was serious, the energy consumption height.For the inflation agitation type flotation machine,, remedied mechanical agitation flotation device aeration quantity defect of insufficient, but the high problem of energy consumption still there is not fine solution owing on the basis of mechanical agitation flotation device, additionally added air.For pneumatic flotation cell, there has not been agitating device, energy consumption descends, and air capacity is adjustable, but mineral grain is not having the kinetic energy that has under the stirring condition little, and contact the probability that adheres to bubble not high, so the rate of recovery is still not high.Jameson cell is the Australian southern Wales department of chemistry engineering professor of University of Newcastle upon Tyne pneumatic flotation cell that the Jameson developed, in order to increase the chance that mineral grain and bubble hit adhere to, employing adds pump and quickens ore pulp, improve particle kinetic energy, obtain better technical effect, but brought the wearing and tearing of equipment and the problem that energy consumption increases.Flotation column is to grow up on the basis of pneumatic flotation cell, contact with bubble and adhere to the low shortcoming of probability in order to overcome the pneumatic flotation cell mineral grain, flotation device sorting groove is deepened, mineral grain adheres to the bubble adverse current collision generation of rising in infall process, formed simple in structurely, floor space is little, and energy consumption is low, concentration ratio is high, has the flotation column of development prospect.Research for flotation column, carried out decades, mainly concentrated on the bubble generator, that purpose is to produce is tiny, disperse, abundant foam, such research has obtained very big success, among multiple bubble generator has been widely used in producing.But flotation column realizes increasing the purpose that particle and bubble hit adhere to chance by the degree of depth that increases the sorting groove, and the shortcoming of bringing is that device height is big, generally requires nearly ten meters, and this is to the lifting of ore pulp, and the air introducing has produced higher energy consumption again.So, carried out number of research projects again in order to reduce the post height.
Short column microvesicle air suction type flotation device is made up of ore pulp bucket, slag stock pump, sorting groove body, inner barrel, pulp distributer, mineralizer, mineralising pipe, perflectometer, concentrate feeder, mine tailing regulating box, by-pass valve control etc., ore pulp is extracted out into pulp distributer from the ore pulp bucket by the slag stock pump, uniform distribution is to the mineralization unit of each group mineralizer then, via mineralizer, mineralising pipe, the nozzle from perflectometer sprays at last.When ore pulp from distributor when mineralizer enters the mineralising pipe, because the special construction of mineralizer, ore pulp becomes spurting to inject the mineralising pipe, thereby formation negative pressure, air is inhaled into mineralising Guan Bingyu ore pulp and fully contacts, shears, collides, and makes the abundant mineralising of ore pulp, and ore pulp arrives the bottom and sprays through the perflectometer nozzle, fully the ore particle of mineralising floats to flotation bucket surface with a large amount of microvesicles in the ore pulp, overflows along periphery to enter the concentrate feeder; Mine tailing then enters the mine tailing case from the bottom by the U-shaped pipe and discharges, and the mine tailing case plays a part to regulate liquid level with the U-shaped pipe, with the control flotation effect.But liquid level is wayward, the separating effect instability.
The characteristics of full froth flotation post are: a) adopt the outside foam maker of gas/water, air/water/foaming agent feeds at the bottom of the post in the inflatable region together, and whole cylinder is entirely for bubble is full of, and pan feeding feeds the foam from the post middle and upper part, utilizes the foam enrichment to carry out sorting fully.B) height of column only about 1m, the ore pulp time of staying is short, and flotation speed is fast.Test shows that under less inflation flow rate can obtain very high concentrate grade, the separating effect of one section full froth flotation post is equivalent to four sections agitation impeller flotators.But the ore pulp time of staying is too short, and mineralising is insufficient, causes the rate of recovery not high.
Eddy flow pneumo type flotation post.Being that the Miller of Univ Utah USA professor invents, is the product that the gravity treatment hydrocyclone is combined with flotation.Its main feature is: a) air is pressed into by the wall porous material, and the ore pulp tangential pressure feeds, thereby will cut into bubble by the air that the porous post jamb is pressed into.Bubble bumps with particle to the moving process of post center from post jamb and adheres to, the mineralization velocity height, thereby flotation speed is fast, its disposal ability is equivalent to 50 times of co-content flotation device.B) sand setting annular ore discharge, ore pulp belongs to " plug flow " substantially.C) equipment volume is little, and the porous media eyelet is difficult for stopping up.This floatation equipment shortcoming is that the wall wearing and tearing are very fast, and parameter changes sensitiveness and causes the flotation effect instability more greatly.
The filling medium flotation column is filling porous, a net in flotation column, it is mobile that its purpose is to allow ore pulp pass through crooked duct, adhere to bubble hit, reach the probability that raising ore particle and bubble hit adhere to, thereby reduced the height of flotation column, but porous, netted medium are easy to generate obstruction, and flow rate of pulp slack-off after, the device processes ability drop.
Therefore, still there is the cylinder height in present widely used flotation column, energy consumption is big to be waited not enoughly, and if can research and design a kind of both to have had the flotation device device height little but energy consumption is low, and it is little to wear and tear, it is lower to have the flotation column energy consumption, the concentration ratio height, but highly little, it is little to wear and tear, the floatation equipment that the rate of recovery is high will significantly improve the efficient of mineral floating separation and concentration.
Summary of the invention
It is low to the purpose of this invention is to provide a kind of energy consumption, and aeration quantity is big, and mineral grain and bubble hit adhere to the probability height, adopts to be pressed into air generation bubble, the floatation equipment with annular combining structure--ring shaped air flotation machine.
Technical scheme of the present invention is:
Ring shaped air flotation machine is made up of sorting post (1), bubble generator (2), annular froth paddle mechanism (3), process ore pulp riser (4); Sorting post (1) is made of cylinder (5), froth concentrate feed port (6), chats feed port (7), mine tailing mouth (8), concentrate annular groove (9); Annular froth paddle mechanism (3) is made up of motor (10), decelerator (11), blade holder (12), bracing frame (13), scraper plate (14); Be combined into annular by n sorting post (1), the concentrate pipe of the cylinder top concentrate annular groove (9) of sorting post is connected to the froth concentrate feed port (6) that adjoins cylinder, cylinder bottom mine tailing mouth is connected with process ore pulp riser (4), process ore pulp riser (4) other end links to each other with the chats feed port (7) that another adjoins cylinder, bubble generator (2) is fixedly mounted in the cylinder of each sorting post bottom, the motor (10) of annular froth paddle mechanism (3), decelerator (11) links to each other with blade holder (12), and bracing frame 13 connections are supported on the cylinder top that is combined into annular.
Wherein:
N=n1+n2+1, in the formula: n1 is the selected number of times of the definite ore needs of beneficiation test, n2 is the number of times of scanning of the definite ore needs of beneficiation test.
The section configuration of sorting post 1 is a kind of in round, square type or the isosceles trapezoid.
Bubble generator (2) is pressed into the air type bubble generator for conventional porous media.
Sand pump (15) is installed at process ore pulp riser (4) middle part or pressure air enters pipe (16) as chats lifting power.
The basal area equivalent diameter of sorting post cylinder (1) is D/L=0.25～0.83 with the ratio of height.
Operation principle:
Requirement according to different ore floatation technologies, contain foaming agent, the ore pulp of floating agents such as collecting agent feeds in the feed port of any sorting post of this ring shaped air flotation machine, ore pulp enters the sorting post from top to down toward current downflow, air is pressed in the bubble generator simultaneously, form bubble by porous media in the bottom of sorting post, the downward sedimentation of ore particle in the ore pulp, the bubble buoyance lift that makes progress, ore particle and the collision of bubble adverse current, have hydrophobic ore particle and be attached to bubble, come-up by the bubble band, when the bubble band ore particle and floated to liquid level, form froth bed, ore particle wherein becomes froth concentrate, by motor, the scraper plate that the decelerator band the annular froth paddle mechanism that rotates scrapes the froth bed that forms, and froth concentrate is entered in the concentrate annular groove, and by the concentrate pipe enter carry out in the selected sorting post selected.The ore particle of possess hydrophilic property can not continue to flow downward with ore pulp attached on the bubble, discharges from the mine tailing mouth at last.The ore pulp of discharging from the mine tailing mouth enters process ore pulp riser, is promoted by sand pump or the air stream that is pressed in process ore pulp riser, enters to scan in the sorting post and scans.
Froth concentrate is selected through n1 time, and the final concentrate of acquisition is discharged from the concentrate annular groove of last selected sorting post.Chats is scanned through n2 time, and the true tailings of acquisition is discharged from the mine tailing mouth of scanning the sorting post for the last time.Scan the froth concentrate of acquisition at every turn, from the froth concentrate feed port of last sorting post return carry out selected.The mine tailing of each selected acquisition, mine mouth enters and scans from a back sorting post.
This has the good effect that compared with prior art has as follows:
1) energy consumption is low and wear and tear little
Ring shaped air flotation machine of the present invention belongs to pneumatic flotation cell, there is not mechanical agitation, so significantly reduced the energy consumption of equipment and stirred the equipment attrition that produces, simultaneously because sorting post height is about 1/4th of a conventional flotation column, produce the needed air pressure of bubble and greatly reduce, the inflation energy consumption is low.
2) the probability height that adheres to of big, ore particle of aeration quantity and bubble hit
Ring shaped air flotation machine of the present invention adopts the series connection of multistage sorting post to form the annular combination, each section sorting post is provided with bubble generator, compare with the flotation column of routine, inflation times increases, aeration quantity exceeds several times, so the probability height that ore particle and bubble hit adhere to has overcome the not high defective of the rate of recovery that conventional flotation column causes because of the aeration quantity deficiency.
3) selected and scan the time and the number of times adjustment is flexible
Conventional flotation column is in case highly definite, under the mine-supplying quantity of determining, the time of sorting is just definite, adjust difficulty, and ring shaped air flotation machine of the present invention adopts multistage sorting column combination, each section sorting post has identical structure, and this can adjust number of times and sorting time selected, that scan as required, thus the grade and the rate of recovery of control concentrate.
4) scope of increase sorting granularity
Conventional flotation column is bad for handling the coarse grain effect, and reason is that cylinder is too high, and coarse grain easily comes off from bubble, is difficult to be taken in the froth bed more than the liquid level by bubble.And the sorting post cylinder that the present invention adopts is lower, and coarse grain entered the chance of froth bed before coming off from bubble more more, and aeration quantity is big, repeatedly produces bubble, the probability height that ore particle and bubble hit adhere to, and the problem that coarse grain is difficult for floating improves.
Description of drawings
Fig. 1 is a ring shaped air flotation machine front view of the present invention.
Fig. 2 is the I-I view among Fig. 1.
Fig. 3 is ring shaped air flotation machine sorting rod structure figure of the present invention.
Fig. 4 is Fig. 3's (sorting post) vertical view.
Fig. 5 is the structure chart of single sorting post of ring shaped air flotation machine of the present invention.
Fig. 6 is a ring shaped air flotation machine annular froth paddle mechanism map of the present invention.
Fig. 7 is a ring shaped air flotation machine process ore pulp riser schematic diagram of the present invention.
Among the figure, 1-sorting post; 2-is pressed into the air type bubble generator; 3-annular froth paddle mechanism; 4-process ore pulp riser; The 5-cylinder; 6-froth concentrate feed port; 7-chats feed port; 8-mine tailing mouth; 9-concentrate annular groove; The 10-motor; The 11-decelerator; The 12-blade holder; The 13-bracing frame; The 14-scraper plate, the 15-sand pump; The 16-pressure air enters pipe; 7-sand pump or compressed air.
The specific embodiment
Embodiment 1:
1, the formation of ring shaped air flotation machine: as shown in Figure 1, by sorting post 1, be pressed into air type bubble generator 2, annular froth paddle mechanism 3, process ore pulp riser 4 and form; Sorting post 1 is made of cylinder 5, froth concentrate feed port 6, chats feed port 7, mine tailing mouth 8, concentrate annular groove 9, that the section configuration of sorting post 1 can be is round, a kind of in square type or the isosceles trapezoid, and the basal area equivalent diameter is D/L=0.25～0.83 with the ratio of height; Annular froth paddle mechanism 3 is made up of motor 10, decelerator 11, blade holder 12, bracing frame 13, scraper plate 14; Be combined into annular (n=n1+n2+1 by n sorting post 1, in the formula: n1 is the selected number of times that the definite ore of beneficiation test needs, n2 is the number of times of scanning of the definite ore needs of beneficiation test), the concentrate pipe of the cylinder top concentrate annular groove 9 of sorting post is connected to the froth concentrate feed port 6 that adjoins cylinder, cylinder bottom mine tailing mouth is connected with process ore pulp riser 4, sand pump 15 is installed at process ore pulp riser 4 middle parts or pressure air enters pipe 16, promote power as chats; Process ore pulp riser 4 other ends link to each other with the chats feed port 7 that another adjoins cylinder, be pressed into air type bubble generator 2 and be the bubble generator of conventional porous media, be fixedly mounted in the cylinder of each sorting post bottom, motor 10, the decelerator 11 of annular froth paddle mechanism 3 link to each other with blade holder 12, and bracing frame 13 connections are supported on the cylinder top that is combined into annular.
2, handle ore: head grade is about 16% low grade pyrite, grinding particle size :-200 orders account for about 80%;
3, the ring shaped air flotation machine structural parameters are:
1) section configuration of sorting post is circular, and cross section diameter is 2500mm, highly be 3000mm, cylinder basal area equivalent diameter and ratio D/L=0.83 highly, sorting post quantity n=n1+n2+1=8, n1=5 wherein, n2=2;
2) process ore pulp riser middle part is introduced pressure air and is promoted power as chats.
4, the technical indicator of Huo Deing:
Sulphur concentrate sulfur-bearing grade 〉=50%, the rate of recovery of sulphur 〉=92%
Embodiment 2:
1, the formation of ring shaped air flotation machine is identical with embodiment 1.
2, handle ore: head grade is 1.2% copper sulfide ore, grinding particle size :-200 orders account for about 85%.
3, the ring shaped air flotation machine structural parameters are:
1) section configuration of sorting post is an isosceles trapezoid, the upper base 1000mm of isosceles trapezoid, 500mm goes to the bottom, high 1000mm, the basal area equivalent diameter is 489mm, highly is 1950mm, cylinder basal area equivalent diameter and ratio D/L=0.25 highly, sorting post quantity n=n1+n2+1=12, n1=5 wherein, n2=6;
2) process ore pulp riser middle part is introduced pressure air and is promoted power as chats.
4, the technical indicator of Huo Deing:
Copper concentrate contains copper grade 〉=25%, the rate of recovery of copper 〉=94%.
Embodiment 3:
1, the formation of ring shaped air flotation machine is identical with embodiment 1.
2, handle ore: head grade is 4% zinc sulphide ore, and grinding particle size :-200 orders account for about 75%.
3, the ring shaped air flotation machine structural parameters are:
1) section configuration of sorting post is a rectangle, the long 1000mm of rectangle, wide 1200mm, the basal area equivalent diameter is 618mm, highly is 1800mm, cylinder basal area equivalent diameter and ratio D/L=0.343 highly, sorting post quantity n=n1+n2+1=7, n1=3 wherein, n2=3;
2) process ore pulp riser middle part is installed sand pump and is promoted power as chats.
4, the technical indicator of Huo Deing:
Zinc concentrate contains zinc grade 〉=50%, the rate of recovery of zinc 〉=84%.
Claims (5)
1. a ring shaped air flotation machine is characterized in that, is made up of sorting post (1), bubble generator (2), annular froth paddle mechanism (3), process ore pulp riser (4); Sorting post (1) is made of cylinder (5), froth concentrate feed port (6), chats feed port (7), mine tailing mouth (8), concentrate annular groove (9); Annular froth paddle mechanism (3) is made up of motor (10), decelerator (11), blade holder (12), bracing frame (13), scraper plate (14); Be combined into annular by n sorting post (1), n=n1+n2+1, in the formula: n1 is the selected number of times of the definite ore needs of beneficiation test, n2 is the number of times of scanning of the definite ore needs of beneficiation test; The concentrate pipe of the concentrate annular groove (9) on the cylinder top of sorting post is connected to the froth concentrate feed port (6) that adjoins the sorting post, the mine tailing mouth of cylinder bottom is connected with process ore pulp riser (4), process ore pulp riser (4) other end links to each other with the chats feed port (7) that another adjoins the sorting post, bubble generator (2) is fixedly mounted in the cylinder of each sorting post bottom, motor (10), the decelerator (11) of annular froth paddle mechanism (3) link to each other with blade holder (12), and bracing frame (13) connection is supported on the cylinder top that is combined into annular.
2. ring shaped air flotation machine according to claim 1 is characterized in that: a kind of in circular, rectangle or the isosceles trapezoid of the section configuration of sorting post (1).
3. ring shaped air flotation machine according to claim 1 is characterized in that: bubble generator (2) is pressed into the air type bubble generator for conventional porous media.
4. ring shaped air flotation machine according to claim 1 is characterized in that: sand pump (15) is installed at process ore pulp riser (4) middle part or pressure air enters pipe (16) as chats lifting power.
5. ring shaped air flotation machine according to claim 1 is characterized in that: the basal area equivalent diameter of sorting post cylinder (5) is D/L=0.25～0.83 with the ratio of height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100585560A CN101293227B (en) | 2008-06-18 | 2008-06-18 | Ring shaped air flotation machine |
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| CN2008100585560A CN101293227B (en) | 2008-06-18 | 2008-06-18 | Ring shaped air flotation machine |
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| CN101293227A CN101293227A (en) | 2008-10-29 |
| CN101293227B true CN101293227B (en) | 2010-10-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170340B (en) * | 2015-10-12 | 2017-12-15 | 湖南有色金属研究院 | A kind of gas-charging compound cylinders combination type floating optional equipment |
| CN107362912B (en) * | 2017-09-05 | 2023-10-31 | 北矿机电科技有限责任公司 | Centrifugal bubble scraping device of flotation column |
| CN110947525B (en) * | 2019-12-16 | 2020-10-16 | 李宾 | Nanobubble flotation column |
| CN115634780A (en) * | 2022-11-11 | 2023-01-24 | 昆明理工大学 | Laboratory closed type inflatable flotation equipment and flotation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871448A (en) * | 1988-06-14 | 1989-10-03 | Gosudarstvenny Proektno-Konstruktorsky I Experimentalny Institut Po Obogatitelnomu Oborudovaniju | Mechanical flotation machine |
| CN2431047Y (en) * | 2000-07-07 | 2001-05-23 | 中国矿业大学（北京校区） | Bidirectionally inflating jet flotation column |
| CN2586537Y (en) * | 2002-10-16 | 2003-11-19 | 王怀法 | Two-stage inflatable micro-foam flotation column apparatus |
| CN2845915Y (en) * | 2005-10-06 | 2006-12-13 | 黄罕 | Improved spiral static micro bubble floatation column |
| CN101125313A (en) * | 2007-09-21 | 2008-02-20 | 刘巽珑 | Precision sorting flotation machine |
-
2008
- 2008-06-18 CN CN2008100585560A patent/CN101293227B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871448A (en) * | 1988-06-14 | 1989-10-03 | Gosudarstvenny Proektno-Konstruktorsky I Experimentalny Institut Po Obogatitelnomu Oborudovaniju | Mechanical flotation machine |
| CN2431047Y (en) * | 2000-07-07 | 2001-05-23 | 中国矿业大学（北京校区） | Bidirectionally inflating jet flotation column |
| CN2586537Y (en) * | 2002-10-16 | 2003-11-19 | 王怀法 | Two-stage inflatable micro-foam flotation column apparatus |
| CN2845915Y (en) * | 2005-10-06 | 2006-12-13 | 黄罕 | Improved spiral static micro bubble floatation column |
| CN101125313A (en) * | 2007-09-21 | 2008-02-20 | 刘巽珑 | Precision sorting flotation machine |
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| CN101293227A (en) | 2008-10-29 |
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