CN1302853C - Double flow regime microbubble flotation unit and method - Google Patents
Double flow regime microbubble flotation unit and method Download PDFInfo
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- CN1302853C CN1302853C CNB2005100174907A CN200510017490A CN1302853C CN 1302853 C CN1302853 C CN 1302853C CN B2005100174907 A CNB2005100174907 A CN B2005100174907A CN 200510017490 A CN200510017490 A CN 200510017490A CN 1302853 C CN1302853 C CN 1302853C
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Abstract
The present invention aims to provide a device and a method for double flow-state microbubble flotation having the advantages of sufficient metallization, stable ore slurry motion state, high efficiency and high precision. The device mainly comprises a feed inlet, an ore slurry distributor, a wind chamber, a flotation barrel, an ore concentrate collecting tank and a tailing outlet, wherein the lower part of the ore slurry distributor is connected with at least one set of metallization unit; the metallization unit is composed of an upper slurry output pipe, a double-surface microvesicle metallization device and a lower slurry output pipe which are successively communicated; the upper part of the upper slurry output pipe is communicated with the ore slurry distributor; the double-surface microvesicle metallization device is connected with a ventilating chamber by a gas guiding pipe; the lower part of the lower slurry output pipe is arranged in an inner cavity of the flotation barrel. The device uses the method for double flow-state microbubble flotation, and thus, flotation ore slurry is sufficiently mineralized in the double-surface microvesicle metallization device and is sprayed into the flotation barrel to form a state opposite to laminar flow; then, separation is gradually realized. The present invention has the advantages of strong adaptability, high efficiency and high precision. Cleaned coal with low ash can be effectively separated from coal slurry which is difficult to separate and a lower limit can be up to 10 micrometers.
Description
Technical field
The present invention relates to a kind of flotation unit and method for floating thereof, specifically, related to a kind of double-current attitude microfoam flotation device and double-current attitude microfoam flotation method thereof.
Background technology
Along with the improvement of coal mining mode and the variation of ature of coal, slime content improves year by year, the selected amount of coal is also progressively improving, people are to the continuous growth of coal clean utilization demand in addition, the user is improving day by day to the requirement of quality of cleaned coal, especially more and more stricter to the requirement of ash content index, ash falls, upgrading is the key of the present economic synergy of coal separation industry.Coal in China particulate fixed ash height, difficult choosing, easy argillization, so require more and more higher to floatation equipment, at present, the traditional agitation impeller flotator of the most of employing of the floatation equipment that the coal separation industry is used, it is bigger that these equipment exist the generation bubble, and the fluidised form disorder, make separating effect degenerate along with diminishing of mineral particle diameter, thereby cause efficient to reduce, product quality is difficult to be effectively controlled, and have that floor space is big, the flotation precision is low, the shortcoming such as restricted of modernizing and expanding the existing factory; Along with the continuous development of technology, the flotation unit of microbubble mode occurs, but still existed ore pulp motion state instability, flotation effect is bad, and flotation efficiency is low, the problem that the flotation precision is not high enough.
Summary of the invention
The objective of the invention is to eliminate the deficiencies in the prior art, a kind of mineralising is abundant, the ore pulp motion state is stable, the flotation precision is high double-current attitude microfoam flotation device and double-current attitude microfoam flotation method are provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of double-current attitude microfoam flotation device, mainly comprise feeding mouth, pulp distributer, air compartment, the flotation bucket, concentrate feeder and mine tailing outlet, wherein, the feeding mouth bottom is communicated with pulp distributer, the flotation bucket is communicated with the concentrate feeder, flotation bucket bottom is provided with the mine tailing outlet, described pulp distributer bottom is connected with and is no less than one group of mineralization unit, described mineralization unit is by the upper slurry-conveying tube that is communicated with successively, two-sided microvesicle mineralization device and lower slurry-conveying tube are formed, wherein, the top of upper slurry-conveying tube is communicated with pulp distributer, two-sided microvesicle mineralization device is communicated with air compartment by wireway, the bottom of lower slurry-conveying tube is arranged in the flotation barrel cavity, described two-sided microvesicle mineralization device is by shell, upper end cover, bottom end cover, outer microporous pipe and wireway are formed, outer microporous pipe tube wall is densely covered with ventilative micropore, it is characterized in that: described two-sided microvesicle mineralization device also comprises interior microporous pipe, wherein, outer microporous pipe is arranged in the cavity of shell hollow, interior microporous pipe is arranged in the cavity of outer microporous pipe hollow, upper end cover, bottom end cover, the outer air cavity of the common formation in the inboard and outer microporous pipe tube wall of the shell outside, upper end cover, air cavity in the common formation of bottom end cover and interior microporous pipe, outer microporous pipe tube wall inboard and interior microporous pipe tube wall are surveyed the formation mineralizing cavity outward, wireway and outer air cavity, interior air cavity is communicated with, interior microporous pipe tube wall is densely covered with ventilative micropore, and described ventilative micro-pore diameter is 10 microns-500 microns.
A kind of double-current attitude microfoam flotation method, it is characterized in that: described method for floating may further comprise the steps:
(1), mineral matter, water and the formed slurry mixture of adjustable floating agent of institute's flotation enter from feeding mouth, enters the upper slurry-conveying tube of mineralization unit after pulp distributer distributes;
(2), slurry mixture enters two-sided microvesicle mineralization device through upper slurry-conveying tube, the inside and outside two-layer microporous pipe that the gases at high pressure that provided by air chamber enter two-sided microvesicle mineralization device, cause slurry mixture in the mineralizing cavity of flowing through violent collision to take place, obtain the height mineralising in the high turbulent disperse system environment that slurry mixture is formed in two-sided microvesicle mineralization device in the cutting of the fine air-flow of inside and outside two sides microporous pipe high pressure, under impacting;
(3), the ore pulp of height mineralising sprays into flotation bucket bottom through lower slurry-conveying tube;
(4), in the flotation bucket, form the weak jamming environment of opposite layer stream mode through the ore pulp of height mineralising, and in this weak jamming environment, the ore pulp that mineralising is crossed rises floating under the buoyancy of microvesicle stably, wherein, in rising floating process, hydrophily spoil particle sinks gradually, and is final, sinks to flotation bucket bottom, and discharge by the mine tailing outlet that flotation bucket bottom is provided with, and continuous liter of hydrophobicity cleaned coal particle floated, and be final, overflows to the concentrate feeder naturally.
The present invention has outstanding substantive distinguishing features and obvious improvement with respect to prior art, specifically, following advantage is arranged: (1), this device adopts two-sided microvesicle mineralising structure, when slurry mixture enters two-sided microvesicle mineralization device through upper slurry-conveying tube, the gases at high pressure that provide by air chamber enter two-sided microvesicle mineralization device in, outer two-layer microporous pipe, cause slurry mixture in the mineralizing cavity of flowing through interior, the cutting of the fine air-flow of outer two sides microporous pipe high pressure, impact down violent collision takes place, obtain the height mineralising in the high turbulent disperse system environment that slurry mixture is formed in two-sided microvesicle mineralization device; (2), adopt double-current attitude method for floating, the ore pulp of institute's flotation is forced in the disperse system environment of the inner high turbulent condition of two-sided microvesicle mineralization device, make adjustable medicament, microbubble, ore pulp abundant mineralising in violent collision, the ore pulp that abundant mineralising is crossed sprays in the flotation bucket, form the state of relative laminar flow, finally, the ore pulp that abundant mineralising is crossed is realized sorting gradually in this weak jamming environment, its effect shows that adaptability is strong, the efficient height, the precision height can effectively be selected low ash extract coal from difficult separation coal mud, its lower limit reaches 10 microns; (3), adopt the method for floating of double-current attitude, can be adapted to the high concentration flotation, coal separation circulation moisture total amount is reduced, and can save pipeline and select less pump for use and the adapted motor; (4), adopt double-current attitude floatation process, reduce power source, make power consumption significantly reduce, save power consumption; (5), adopt the method for floating of double-current attitude, make the ash content of cleaned coal reduce, treating capacity increases, flotation efficiency improves, the flotation cost reduces, and makes enterprise obtain bigger profit margin, improves core competence of enterprises.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a two-sided microvesicle mineralization device structural representation of the present invention.
The specific embodiment
For advantage of the present invention further being described, the existing the specific embodiment of the present invention that provides in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of double-current attitude microfoam flotation device, mainly comprise feeding mouth 1, pulp distributer 2, air compartment 6, flotation bucket 8, concentrate feeder 10, mine tailing outlet 9, wherein, feeding mouth 1 bottom is communicated with pulp distributer 2, flotation bucket 8 is communicated with concentrate feeder 10, flotation bucket 8 bottoms are provided with mine tailing outlet 9, described pulp distributer 2 bottoms are connected with and are no less than one group of mineralization unit, described mineralization unit is by the upper slurry-conveying tube 3 that is communicated with successively, two-sided microvesicle mineralization device 4 and lower slurry-conveying tube 5 are formed, wherein, the top of upper slurry-conveying tube 3 is communicated with pulp distributer 2, two-sided microvesicle mineralization device 4 is communicated with air compartment 6 by wireway 7, and the bottom of lower slurry-conveying tube 5 is arranged in flotation bucket 8 inner chambers; Described concentrate feeder 10 is arranged on flotation bucket 8 upper outside, and described concentrate feeder 10 is communicated with flotation bucket 8 tops, and the bottom of described concentrate feeder 10 is provided with concentrate outlet 11.
Described flotation bucket 8 intracavity sidewalls are provided with chats recycling bin 14, and described chats recycling bin 14 is arranged on the middle part of flotation bucket 8 inner chambers at the opening of flotation bucket 8 inner chambers, and the bottom arranged outside of described chats recycling bin 14 has chats outlet 15.
The lower end of described lower slurry-conveying tube 5 is connected with shower nozzle 12, and described shower nozzle 12 is cavitys, and shower nozzle 12 cavity walls are provided with the spout 13 under oblique.
As shown in Figure 2, described two-sided microvesicle mineralization device 4 is by shell 18, upper end cover 16, bottom end cover 17, outer microporous pipe 19, interior microporous pipe 20 and wireway 21 are formed, wherein, outer microporous pipe 19 is arranged in the cavity of shell 18 hollows, interior microporous pipe 20 is arranged in the cavity of outer microporous pipe 19 hollows, upper end cover 16, bottom end cover 17, the outer air cavity 24 of the shell 18 common formations in the inboard and outer microporous pipe 19 tube walls outside, upper end cover, air cavity 22 in the common formation of bottom end cover and interior microporous pipe, inboard and interior microporous pipe 20 tube walls of the outer microporous pipe 19 tube walls outside constitutes mineralizing cavity 23, wireway 21 and outer air cavity 24, interior air cavity 22 is communicated with, outer microporous pipe 19 tube walls and interior microporous pipe 20 tube walls are densely covered with ventilative micropore 25, and described ventilative micro-pore diameter is 10 microns-500 microns.
Described ventilative micro-pore diameter also can be 12 microns-400 microns.
Described ventilative micro-pore diameter also can be 16 microns-260 microns.
Described ventilative micro-pore diameter also can be 18 microns-200 microns.
Described ventilative micro-pore diameter also can be 25 microns-80 microns.
Preferred 10 microns, 12 microns, 14 microns, 16 microns, 18 microns, 20 microns, 25 microns, 30 microns, 40 microns, 50 microns or 80 microns, 100 microns, 130 microns, 160 microns, 200 microns, 240 microns, 280 microns, 300 microns, 340 microns, 360 microns, 380 microns, 400 microns, 420 microns, 450 microns, 480 microns, 500 microns of concrete diameter values.
A kind of double-current attitude microfoam flotation method, it is characterized in that: described method for floating may further comprise the steps:
(1), mineral matter, water and the formed slurry mixture of adjustable floating agent of institute's flotation enter from feeding mouth, enters the upper slurry-conveying tube of mineralization unit after pulp distributer distributes;
(2), slurry mixture enters two-sided microvesicle mineralization device through upper slurry-conveying tube, the inside and outside two-layer microporous pipe that the gases at high pressure that provided by air chamber enter two-sided microvesicle mineralization device, cause slurry mixture in the mineralizing cavity of flowing through violent collision to take place, obtain the height mineralising in the high turbulent disperse system environment that slurry mixture is formed in two-sided microvesicle mineralization device in the cutting of the fine air-flow of inside and outside two sides microporous pipe high pressure, under impacting;
(3), the ore pulp of height mineralising sprays into flotation bucket bottom through lower slurry-conveying tube;
(4), spray into the ore pulp of the height mineralising of flotation bucket bottom, pressure is die-offed, a large amount of bubbles are separated out, in the flotation bucket, form the weak jamming environment of opposite layer stream mode through the ore pulp of height mineralising, and in this weak jamming environment, the ore pulp that mineralising is crossed rises floating under the buoyancy of microbubble stably, wherein, in rising floating process, hydrophily spoil particle sinks gradually, and is final, sinks to flotation bucket bottom, and discharge by the mine tailing outlet that flotation bucket bottom is provided with, hydrophobicity cleaned coal particle constantly rises floating, and is final, overflows to the concentrate feeder naturally, and the neutrophil granule that is suspended in the middle part of the microvesicle overflows into the chats recycling bin gradually, and is discharged by the chats outlet of chats recycling bin.
Double fluid attitude flotation microfoam flotation principle: mainly be utilize coal and mineral surfaces physics, chemical property different, coal is separated with mineral matter.At first, medicament, water and coal and mineral matter are mixed fully, make coal and mineral matter at physics, chemically simply separate, then, utilize the gases at high pressure of plenum chamber, make it by the ventilative micropore on the microporous pipe tube wall, and produce a large amount of fine air-flows, make this fine air-flow cutting, impact slurry mixture, make slurry mixture that violent collision take place, and make it to produce a large amount of microbubbles, and under a large amount of microbubble effects, coal is separated with mineral matter, thus form the disperse system of high turbulent condition; Then, again the slurry mixture of height mineralising is sprayed into flotation bucket bottom, utilize reducing suddenly of pressure herein, have a large amount of bubbles and in ascension, separate out gradually, thereby produce the weak jamming environment of relative laminar flow, and in the ascension process of bubble, realize sorting gradually.
Claims (3)
1, a kind of double-current attitude microfoam flotation device, mainly comprise feeding mouth, pulp distributer, air compartment, the flotation bucket, concentrate feeder and mine tailing outlet, wherein, the feeding mouth bottom is communicated with pulp distributer, the flotation bucket is communicated with the concentrate feeder, flotation bucket bottom is provided with the mine tailing outlet, described pulp distributer bottom is connected with and is no less than one group of mineralization unit, described mineralization unit is by the upper slurry-conveying tube that is communicated with successively, two-sided microvesicle mineralization device and lower slurry-conveying tube are formed, wherein, the top of upper slurry-conveying tube is communicated with pulp distributer, two-sided microvesicle mineralization device is communicated with air compartment by wireway, the bottom of lower slurry-conveying tube is arranged in the flotation barrel cavity, described two-sided microvesicle mineralization device is by shell, upper end cover, bottom end cover, outer microporous pipe and wireway are formed, outer microporous pipe tube wall is densely covered with ventilative micropore, it is characterized in that: described two-sided microvesicle mineralization device also comprises interior microporous pipe, wherein, outer microporous pipe is arranged in the cavity of shell hollow, interior microporous pipe is arranged in the cavity of outer microporous pipe hollow, upper end cover, bottom end cover, the outer air cavity of the common formation in the inboard and outer microporous pipe tube wall of the shell outside, upper end cover, air cavity in the common formation of bottom end cover and interior microporous pipe, inboard and the interior microporous pipe tube wall of the outer microporous pipe tube wall outside constitutes mineralizing cavity, wireway and outer air cavity, interior air cavity is communicated with, interior microporous pipe tube wall is densely covered with ventilative micropore, and described ventilative micro-pore diameter is 10 microns-500 microns.
2, a kind of double-current attitude microfoam flotation method, it is characterized in that: described method for floating may further comprise the steps:
(1), mineral matter, water and the formed slurry mixture of adjustable floating agent of institute's flotation enter from feeding mouth, enters the upper slurry-conveying tube of mineralization unit after pulp distributer distributes;
(2), slurry mixture enters two-sided microvesicle mineralization device through upper slurry-conveying tube, the inside and outside two-layer microporous pipe that the gases at high pressure that provided by air chamber enter two-sided microvesicle mineralization device, cause slurry mixture in the mineralizing cavity of flowing through violent collision to take place, obtain the height mineralising in the high turbulent disperse system environment that slurry mixture is formed in two-sided microvesicle mineralization device in the cutting of the fine air-flow of inside and outside two sides microporous pipe high pressure, under impacting;
(3), the ore pulp of height mineralising sprays into flotation bucket bottom through lower slurry-conveying tube;
(4), in the flotation bucket, form the weak jamming environment of opposite layer stream mode through the ore pulp of height mineralising, and in this weak jamming environment, the ore pulp that mineralising is crossed rises floating under the buoyancy of microvesicle stably, wherein, in rising floating process, hydrophily spoil particle sinks gradually, and is final, sinks to flotation bucket bottom, and discharge by the mine tailing outlet that flotation bucket bottom is provided with, and continuous liter of hydrophobicity cleaned coal particle floated, and be final, overflows to the concentrate feeder naturally.
3, a kind of double-current attitude microfoam flotation method according to claim 2, it is characterized in that: enter the ore pulp flotation bucket, that mineralising is crossed and under the buoyancy of microvesicle, rise floating stably, wherein, rise in the floating process, the neutrophil granule that is suspended in the microvesicle middle part overflows into the chats recycling bin gradually, and is discharged by the chats outlet of chats recycling bin.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100174907A CN1302853C (en) | 2005-03-30 | 2005-03-30 | Double flow regime microbubble flotation unit and method |
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| CNB2005100174907A CN1302853C (en) | 2005-03-30 | 2005-03-30 | Double flow regime microbubble flotation unit and method |
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| CN1302853C true CN1302853C (en) | 2007-03-07 |
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| US20140202932A1 (en) * | 2011-06-10 | 2014-07-24 | Fujian Longyan Longneng Flyash Comprehensive Utilization Co., Ltd. | Flotation process and flotation apparatus for coal flyash |
| CN102247934B (en) * | 2011-07-04 | 2013-09-25 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Self-air-supply type coal ash flotation process |
| CN102357429B (en) * | 2011-09-30 | 2014-04-02 | 湖南长高矿山机电设备有限公司 | Flotation column and charging device for same |
| CN107377235A (en) * | 2017-08-11 | 2017-11-24 | 石磊 | Spraying cycle formula flotation column |
| CN108672103B (en) * | 2018-06-28 | 2020-05-19 | 中国铝业股份有限公司 | Bauxite settling type flotation equipment and sorting method |
| CN112916214A (en) * | 2020-12-25 | 2021-06-08 | 郴州天朗金石矿山设备有限公司 | Universal mineral processing equipment device and method for refitting non-ferrous metal ore and non-metallic ore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532032A (en) * | 1984-05-30 | 1985-07-30 | Dow Corning Corporation | Polyorganosiloxane collectors in the beneficiation of fine coal by froth flotation |
| CN2279215Y (en) * | 1996-10-16 | 1998-04-22 | 中国矿业大学 | Multi-stage microfoam column flotator |
| CN2304476Y (en) * | 1997-08-22 | 1999-01-20 | 中国矿业大学 | Dual vortex static micro-foam flotation column |
| CN2416960Y (en) * | 2000-03-27 | 2001-01-31 | 平顶山煤业(集团)田庄选煤厂 | Micro bubble type flotation machine |
| CN2421075Y (en) * | 2000-03-27 | 2001-02-28 | 平顶山煤业(集团)田庄选煤厂 | Mineralizing device for micro-froth flotation machine |
-
2005
- 2005-03-30 CN CNB2005100174907A patent/CN1302853C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532032A (en) * | 1984-05-30 | 1985-07-30 | Dow Corning Corporation | Polyorganosiloxane collectors in the beneficiation of fine coal by froth flotation |
| CN2279215Y (en) * | 1996-10-16 | 1998-04-22 | 中国矿业大学 | Multi-stage microfoam column flotator |
| CN2304476Y (en) * | 1997-08-22 | 1999-01-20 | 中国矿业大学 | Dual vortex static micro-foam flotation column |
| CN2416960Y (en) * | 2000-03-27 | 2001-01-31 | 平顶山煤业(集团)田庄选煤厂 | Micro bubble type flotation machine |
| CN2421075Y (en) * | 2000-03-27 | 2001-02-28 | 平顶山煤业(集团)田庄选煤厂 | Mineralizing device for micro-froth flotation machine |
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