CN103041931A - Particle size differentiation flotation column type sorting device and method - Google Patents
Particle size differentiation flotation column type sorting device and method Download PDFInfo
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- CN103041931A CN103041931A CN201210555785XA CN201210555785A CN103041931A CN 103041931 A CN103041931 A CN 103041931A CN 201210555785X A CN201210555785X A CN 201210555785XA CN 201210555785 A CN201210555785 A CN 201210555785A CN 103041931 A CN103041931 A CN 103041931A
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Abstract
The invention discloses a particle size differentiation flotation column type sorting device which comprises a flotation column cylinder, a bubble generation device and a tailing collection device and is characterized in that an ore feeding separator is installed at the top end of the flotation column cylinder, the ore feeding separator comprises an ore feeding inlet, a fine particle size mineral outlet, a coarse particle size mineral outlet and a mineral baffle plate with holes and a reflecting disc, the fine particle size mineral outlet is connected with an ore feeding disperser, the coarse particle size mineral outlet is positioned below the ore feeding separator, and the mineral baffle plate is arranged below the coarse particle size mineral outlet. The separation method adopts two ore feeding modes of an ore feeding separator and an upper ore feeding mode and a lower ore feeding mode of the foam layer, coarse particles with high concentration are fed into the upper part of the foam layer, and fine particles with conventional concentration are fed into the lower part of the foam layer. The invention can improve the recovery of coarse fraction minerals on the premise of ensuring the sorting effect of fine fraction minerals.
Description
Technical field
The present invention relates to ore dressing field, relate in particular to a kind of grade differentiation flotation pillar sorting unit and method.
Background technology
The pillar sorting technology is the efficient flotation separation separation method that last century, the fifties grew up, and generally is used for the sorting of the mineral such as non-ferrous metal, ferrous metal and nonmetallic ore.Traditional pillar sorting technology to the ore deposit generally from the middle and upper part of equipment to the ore deposit, bubble is generally produced from the bottom of equipment by bubble generator and feeds, purpose mineral grain and bubble are in the zone line generation adverse current collision mineralising of equipment, mineral laden bubble rises to mineral syrup liquid and forms froth bed, finish floatation process, the concentrate foam overflows the inflow foam tank to be collected from the top of equipment.This post flotation technology has all simply adopted the mineralising mode of adverse current collision to feeding all mineral grades, can not adapt to the ore dressing requirement of different each grade of physicochemical properties.The technology that the Jamson flotation column that occurs subsequently adopts the pillar sorting technologies such as turbulent mineralising, rotational flow microbubble flotation column to adopt turbulent mineralising and adverse current collision mineralising to have concurrently, this dual mode has all been strengthened the recovery of fine fraction mineral.The coarse granule mineral need very little turbulence intensity and very short traffic zone height just can obtain higher recovering effect, and existing post flotation technology are to recovery or a challenge of coarse fraction mineral because granularity is larger, and own wt is larger.
Summary of the invention
Purpose of the present invention is exactly the problem that exists for prior art, and a kind of grade differentiation flotation pillar sorting unit and method are provided.Adopt to the ore deposit separator to the ore deposit and to carry out classification, the coarse fraction mineral feed flotation column froth bed top, adopt froth flotation mineralising mode; The fine fraction mineral feed the froth bed below, adopt adverse current mineralising mode.The present invention has realized the synergy of froth flotation mineralising technology and adverse current collision mineralising technology, has taken into account efficient comprehensive recovery of coarse fraction mineral and fine fraction mineral.
Above-mentioned purpose realizes by following proposal:
A kind of grade differentiation flotation pillar sorting unit, it comprises to ore deposit separator, flotation column cylinder, bubble generator, it is characterized in that, be equipped with to the ore deposit separator on the top of described flotation column cylinder, should comprise mineral baffling disperse baffle plate to the outlet of ore deposit import, fine fraction mineral, the outlet of coarse fraction mineral and with holes and reflecting disc to the ore deposit separator, described fine fraction mineral outlet is connected with giving the ore deposit disperser, described coarse fraction mineral outlet is positioned at described below to the ore deposit separator, and described mineral baffle plate is located at the below of described coarse fraction mineral outlet.
According to above-mentioned sorting unit, it is characterized in that, described is cylindrical tube to ore deposit separator upper end, cylindrical tube lower set unification section back taper cylindrical shell, back taper cylindrical shell bottom is designed with the outlet of enlarging type coarse fraction mineral, the outlet bottom is equipped with the mineral baffle plate, is designed with the aperture and the reflecting disc that disperse for ore pulp on the mineral baffle plate, and aperture adopts short taper profile deflecting plate structure.The device outside is designed with the fine fraction mineral and collects cylinder, and the fine fraction mineral outlet on the cylinder links to each other to the ore deposit house steward with the flotation column middle and upper part by a bend pipe.
According to above-mentioned sorting unit, it is characterized in that, described comprise for the ore deposit disperser to pass in the described flotation column cylinder to the ore deposit house steward, and be installed in being in charge of to the ore deposit on the described house steward.
According to above-mentioned sorting unit, it is characterized in that described bubble generator comprises blast main and the bubble generator that is communicated with this blast main.
A kind of method for separating that uses above-mentioned sorting unit, it is characterized in that, described method for separating may further comprise the steps: there have the ore pulp of pressure to feed with tangential direction to be described to the ore deposit separator, by the eddy flow field of force, the fine grained of high concentration coarse granule and normal concentration is carried out classification, the high concentration coarse granule feeds the froth bed top by described mineral baffle plate, the fine fraction mineral of normal concentration feed the described to ore deposit disperser entrance of flotation column top for ore deposit separator upper end overflow from described, evenly feed the flotation column cross section.
Beneficial effect of the present invention: the present invention adopt to ore deposit separator and froth bed up and down two kinds to the ore deposit mode, the coarse granule of high concentration feeds froth bed top, the fine fraction of normal concentration feeds the froth bed bottom.Under the prerequisite of the mineral sorting result that guarantees microfine, improve the recovery of coarse fraction mineral.
Description of drawings
Fig. 1 is the schematic diagram of the adverse current mineralising pillar method for separating of prior art;
Fig. 2 is the schematic diagram of employing adverse current collision mineralising and the mineralising method that turbulent mineralising has both of prior art;
Fig. 3 is the structural representation of pillar coarse granule flotation column of the present invention;
Fig. 4 is the structural front view to the ore deposit separator that flotation column of the present invention adopts;
Fig. 5 is the structure top view to the ore deposit separator that flotation column of the present invention adopts;
Fig. 6 is that the A-A of Fig. 4 is to view;
Fig. 7 is the partial enlarged drawing of Fig. 4.
The specific embodiment
Referring to Fig. 1, grade differentiation flotation pillar sorting unit of the present invention comprises flotation column cylinder 1, bubble generator 2, mine tailing gathering-device 3, and bubble generator 2 comprises blast main 12 and the bubble generator 13 that is communicated with this blast main 12.Be equipped with to ore deposit separator 4 on the top of flotation column cylinder 1, comprise mineral baffle plate 8 to ore deposit import 5, fine fraction mineral outlet 6, the outlet 7 of coarse fraction mineral and with holes and reflecting disc for ore deposit separator 4, fine fraction mineral outlet 6 is connected with giving ore deposit disperser 9, coarse fraction mineral outlet 7 belows that are positioned to ore deposit separator 9, and mineral baffle plate 8 is located at the below of coarse fraction mineral outlet 7.Comprise for ore deposit disperser 9 to pass in the flotation column cylinder 1 to ore deposit house steward 10, and be installed in and be in charge of 11 to the ore deposit on the house steward 10.In the present embodiment, coarse fraction refers to particle diameter greater than 0.15mm, and fine fraction refers to that particle diameter is less than or equal to 0.15mm.
The taper tangent line of using for reference cyclone for ore deposit separator 4 feeds structure, the upper end is cylindrical tube, cylindrical tube lower set unification section back taper cylindrical shell, back taper cylindrical shell bottom is designed with enlarging type coarse fraction mineral outlet 7, export 7 bottoms mineral baffle plate 8 is installed, be designed with the aperture and the reflecting disc that disperse for ore pulp on the mineral baffle plate 8, aperture adopts short taper profile deflecting plate structure.The device outside is designed with the fine fraction mineral and collects cylinder, and the fine fraction mineral outlet 6 on the cylinder links to each other to ore deposit house steward 10 with the flotation column middle and upper part by a bend pipe.The purpose of this device is to make coarse fraction mineral and fine fraction mineral separately; The coarse fraction mineral are ore pulp end speed convergence zero when feeding froth bed, has greatly reduced the adverse effect that the ore pulp disturbance produces froth bed.Specifically see Fig. 3, Fig. 4, Fig. 5 and Fig. 6, Fig. 7.
Feed to ore deposit separator 4 for the ore deposit with certain speed, the coarse granule that makes high concentration (mass percent concentration 65～75%) from the bottom of giving ore deposit separator 4 with low dirty end speed with no pressure feed the flotation froth layer above, adopt the froth separation technology, make that the purpose mineral are directly entered foam collecting tank by the froth bed collecting in the coarse granule, non-purpose mineral are worn many froth beds and are entered next operation from the flotation column bottom.The fine fraction mineral of normal concentration (mass percent concentration 20～30%) from give the 4 upper end overflows of ore deposit separator feed the flotation column top to ore deposit disperser 9 entrances, evenly feeding the flotation column cross section moves down, with upstream bubble hit, thereby occuring, the mineralising mineralising guaranteed the fine particles flotation performance.The flotation column bubble generator is installed in the flotation column bottom.Mine tailing is high-order discharges, and reduces flow rate of pulp and is easy to control liquid level.The shape of the flotation column that adopts can be square or cylindrical, 8～12 meters of height, and the diameter of flotation column is not limit.
Claims (5)
1. grade differentiation flotation pillar sorting unit, it comprises flotation column cylinder, bubble generator, mine tailing gathering-device, it is characterized in that, be equipped with to the ore deposit separator on the top of described flotation column cylinder, should comprise mineral baffle plate to the outlet of ore deposit import, fine fraction mineral, the outlet of coarse fraction mineral and with holes and reflecting disc to the ore deposit separator, described fine fraction mineral outlet is connected with giving the ore deposit disperser, described coarse fraction mineral outlet is positioned at described below to the ore deposit separator, and described mineral baffle plate is located at the below of described coarse fraction mineral outlet.
2. sorting unit according to claim 1, it is characterized in that, described is cylindrical tube to ore deposit separator upper end, cylindrical tube lower set unification section back taper cylindrical shell, back taper cylindrical shell bottom is designed with the outlet of enlarging type coarse fraction mineral, the outlet bottom is equipped with the mineral baffle plate, is designed with the aperture and the reflecting disc that disperse for ore pulp on the mineral baffle plate, and aperture adopts short taper profile deflecting plate structure; The device outside is designed with the fine fraction mineral and collects cylinder, and the fine fraction mineral outlet on the cylinder links to each other to the ore deposit house steward with the flotation column middle and upper part by a bend pipe.
3. sorting unit according to claim 1 is characterized in that, described comprise for the ore deposit disperser to pass in the described flotation column cylinder to the ore deposit house steward, and be installed in being in charge of to the ore deposit on the described house steward.
4. sorting unit according to claim 1 is characterized in that, described bubble generator comprises blast main and the bubble generator that is communicated with this blast main.
5. a right to use requires the method for separating of one of 1-5 described sorting unit, it is characterized in that, described method for separating may further comprise the steps: there have the ore pulp of pressure to feed with tangential direction to be described to the ore deposit separator, by the eddy flow field of force, the fine grained of high concentration coarse granule and normal concentration is carried out classification, the high concentration coarse granule feeds the froth bed top by described mineral baffle plate, the fine fraction mineral of normal concentration feed the described to ore deposit disperser entrance of flotation column top for ore deposit separator upper end overflow from described, evenly feed the flotation column cross section.
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| CN201210555785XA CN103041931A (en) | 2012-12-20 | 2012-12-20 | Particle size differentiation flotation column type sorting device and method |
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| CN201210555785XA CN103041931A (en) | 2012-12-20 | 2012-12-20 | Particle size differentiation flotation column type sorting device and method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583086A (en) * | 2015-12-21 | 2016-05-18 | 北京矿冶研究总院 | Flotation column flotation method for flake graphite |
| CN108554646A (en) * | 2018-06-07 | 2018-09-21 | 北矿机电科技有限责任公司 | A kind of differentiation configuration system of flotation device |
| CN110882829A (en) * | 2019-12-11 | 2020-03-17 | 郑州大学 | Coarse particle tailing discarding sorting system based on hydraulic flotation technology |
| CN112808466A (en) * | 2021-02-24 | 2021-05-18 | 北矿机电科技有限责任公司 | Coarse particle high-concentration flotation column |
| WO2022003244A1 (en) * | 2020-06-30 | 2022-01-06 | Metso Outotec Finland Oy | Flotation arrangement and method related thereto |
| WO2022003239A1 (en) * | 2020-06-30 | 2022-01-06 | Metso Outotec Finland Oy | Froth-interaction flotation unit, mineral processing apparatus, and method |
| EP4171829A4 (en) * | 2020-06-30 | 2024-08-14 | Metso Finland Oy | Fluidized-bed flotation unit, mineral processing apparatus, and fluidized-bed flotation method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583086A (en) * | 2015-12-21 | 2016-05-18 | 北京矿冶研究总院 | Flotation column flotation method for flake graphite |
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| CN110882829A (en) * | 2019-12-11 | 2020-03-17 | 郑州大学 | Coarse particle tailing discarding sorting system based on hydraulic flotation technology |
| WO2022003244A1 (en) * | 2020-06-30 | 2022-01-06 | Metso Outotec Finland Oy | Flotation arrangement and method related thereto |
| WO2022003239A1 (en) * | 2020-06-30 | 2022-01-06 | Metso Outotec Finland Oy | Froth-interaction flotation unit, mineral processing apparatus, and method |
| EP4171828A4 (en) * | 2020-06-30 | 2024-08-07 | Metso Finland Oy | Froth-interaction flotation unit, mineral processing apparatus, and method |
| EP4171829A4 (en) * | 2020-06-30 | 2024-08-14 | Metso Finland Oy | Fluidized-bed flotation unit, mineral processing apparatus, and fluidized-bed flotation method |
| CN112808466A (en) * | 2021-02-24 | 2021-05-18 | 北矿机电科技有限责任公司 | Coarse particle high-concentration flotation column |
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Application publication date: 20130417 |