CN100562370C - The flotation column that is used for sorting mineral - Google Patents
The flotation column that is used for sorting mineral Download PDFInfo
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- CN100562370C CN100562370C CNB2008101430764A CN200810143076A CN100562370C CN 100562370 C CN100562370 C CN 100562370C CN B2008101430764 A CNB2008101430764 A CN B2008101430764A CN 200810143076 A CN200810143076 A CN 200810143076A CN 100562370 C CN100562370 C CN 100562370C
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Abstract
A kind of flotation column that is used for sorting mineral, it is characterized in that: it comprises cylinder, be divided into the concentrate feeder in the described cylinder from top to bottom successively, sorting bucket and tailings discharging case, offer more than one concentrate floss hole on the described concentrate feeder, concentrate floss hole place is provided with and can carries out the concentrate discharge electric solenoid valve that liquid level is regulated, described sorting bucket comprises that the middle part state micro-bubble divides selections and bottom rotational flow sorting section, the sorting bucket links to each other with external inflator pump, be equiped with cyclone in the post in the sorting bucket, tailings discharging mouth place, described tailings discharging case bottom is provided with the automatic discharge valve with the interlock of concentrate discharge electric solenoid valve.The present invention be a kind of simple and compact for structure, with low cost, energy-efficient, floor space is few, long service life, flotation speed is fast, disposal ability the is big flotation column that is used for sorting mineral.
Description
Technical field
The present invention is mainly concerned with the sorting mineral apparatus field, refer in particular to a kind of flotation column that is used for sorting mineral, not only can be used for diameter and be the coal slime flotation in-0.5MM granularity and following (fine) flyash, the coal slime that also can be widely used in large, medium and small type coal preparation plant reclaims and industry such as graphite chemical industry, also can be applicable to other metal and nonmetallic flotation.
Background technology
Along with development and national economy, the extensive development of resources pattern of " high exploitation, low utilization, maximum discharge " has progressively restricted resource recovery and resource circulation utilization rate.In the long term, this must cause natural resources scarcity, energy shortage and environmental pollution, and the exploitation of mineral resources faces huge challenge.Flotation column has demonstrated great vitality because of its sorting advantage to the superfine material high selectivity in the flotation technology field, more and more is subjected to the attention of ore dressing circle, and many countries have carried out a large amount of research work.Under this background, a collection of flotation column new technology, new equipment, new technology are arisen at the historic moment.The post flotation is to the history innovation of post sorting technology, the successful development of large-scale efficient mining post screening installation and the Application and Development of high-efficiency column sorting process etc., for the pillar sorting mineral has been showed good prospect.
Existing flotation column main body is a pole structure, comprises post flotation, rotational flow separation, pipe stream mineralising three parts.The post flotation is positioned at cylinder top, is used for the pre-sorting of raw material, and obtains the high-quality foam by its selectivity advantage; Rotational flow sorting is positioned at post flotation bottom, is used for the further sorting of post flotation, and obtains qualified underflow product by height recovery ability; Pipe stream mineralising is to introduce gas and forming on the basis of microvesicle, and it is used for the further sorting of rotational flow sorting and tangentially links to each other with rotational flow sorting forming circulation.The defective of existing structure just is: the cleaned coal that (1) floatingly selects by any to same direction by the electrodynamic pump discharge, be not easy to grasp and control the degree of balance of post top cleaned coal groove; (2) mine tailing is collected and the discharging automatic overflow, but can not control discharge capacity automatically, makes charging and the discharging can not balance, will the whole balance of influence; Even also the plugging situation can take place, influence flotation efficiency; (3) the mixing coal slime slurry at sorting bucket middle part is designed to single circulating pump extraction and enters the mineralizer multiple spot circulation of flotation column top, and it is slow that it repeats separation velocity, is not easy to regulate, and efficient is not high; (4) external aerating device only in the coupled columns jet Cheng Pao and pipe stream mineralising implement to play inflation ftercompction effect, and to cleaned coal discharging and liquid level adjusting automatically, mine tailing is collected and the no direct correlation effect of discharging automatically, therefore integrated automation control is not high, usage ratio of equipment neither be very desirable, and energy consumption is also bigger simultaneously.
Summary of the invention
The problem to be solved in the present invention just is: at the technical problem that prior art exists, the invention provides a kind of simple and compact for structure, with low cost, energy-efficient, floor space is few, long service life, flotation speed is fast, disposal ability the is big flotation column that is used for sorting mineral.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of flotation column that is used for sorting mineral, it is characterized in that: it comprises cylinder, described cylinder is interior by being divided into the concentrate feeder under last successively, sorting bucket and tailings discharging case, offer more than one concentrate floss hole on the described concentrate feeder, concentrate floss hole place is provided with and can carries out the concentrate discharge electric solenoid valve that liquid level is regulated, described sorting bucket comprises that the middle part state micro-bubble divides selections and bottom rotational flow sorting section, the sorting bucket links to each other with external inflator pump, be equiped with cyclone in the post in the sorting bucket, tailings discharging mouth place, described tailings discharging case bottom is provided with the automatic discharge valve with the interlock of concentrate discharge electric solenoid valve.
The top of described sorting bucket is provided with the charging aperture that links to each other with extraneous dehvery pump by pipeline, offer an above material loop exit on the side at sorting bucket middle part, described material loop exit links to each other with circulating pump by pipeline and is connected to the top opening part of sorting bucket by pipeline.
The upper end of described tailings discharging case is a column, and the lower end is the vertebra shape, and its structure is made up of cylinder and cone, and the afterbody of taper is established the wing drop marker board.
Described automatic discharge valve links to each other with inflator pump through collecting automatic distributing valve, the automatic distributing valve of discharging and pipeline respectively.
Compared with prior art, advantage of the present invention just is:
(1) the present invention has simple and compact for structure, with low cost, energy-efficient, advantages such as floor space is few, long service life, flotation speed is fast, disposal ability is big;
(2) the present invention designs in the cleaned coal feeder of flotation cylinder top and can carry out the concentrate discharge electric solenoid valve that liquid level is regulated: regulate the liquid level gauge height in the main body automatically, the automatic discharge valve interlock that cooperates the discharging of mine tailings slurry, be more conducive to PLC industrialization control, last microcomputer is done the adjustment operation of data management and various parameters, realize collection " magnetic valve, electric contact pressure and liquid level control " concentrated and on-the-spot two-way control protective device in " PLC is full-automatic " of one; Be equipped with the industry monitoring system as required in addition, make function more complete, more perfect, not only improve effect, reliable, easy to maintenance especially.
(3) the present invention designs " 2 concentrate discharge electric solenoid valves " in the cleaned coal feeder of flotation cylinder top: discharge concentrate uniformly to 2 different directions, remain the stability of material in flotation column cleaned coal groove.
(4) automatic isolated other hydrophilies after the institute of the present invention sorting, high-ash mine tailing slurry (slag) enters the mine tailing " dark vertebra tilts to collect automatic escaper " of flotation column bottom, be designed to vertebra under the upper prop, its structure is made up of cylinder and cone, and the cone afterbody is established the wing drop marker board.After mine tailing is sunk, under the effect of shaking forces such as flotation eddy flow stirring, under the effect of the blowing pressure of external air pressure and mine tailing self gravitation, make the discharging automatically of mine tailings slurry, guarantee the continuity of system's operation, the raising flotation efficiency.
(5) the present invention collects and discharges design " the pneumatic pressure electromagnetic valve of joining automatically " in the implementation process at the mine tailings slurry, make it become automaton with the PLC interface linkage: adopt the M-2 Pneumatic pressure node starting PLC of external (ore pulp) gas charging system air pump C to open the pneumatic pressure electromagnetic valve DTP (have adjusting function is good, decompression is wear-resisting, easy to maintenance) that joins automatically of mine tailing discharge automatically, the wing drop marker board that mine tailing tilts to collect automatic escaper through dark vertebra is discharged automatically from the bottom discharging mouth and is flowed into the tail-box; Simultaneously with flotation cylinder top cleaned coal feeder A-1 in the liquid level self-checking device that designs keep balance, automatically opening mine tailing discharge air-powered electromagnetic distributing valve DTP by M-1 Pneumatic pressure node starting PLC closes " boring inclination automatic discharge plate deeply " and carries out the mine tailings slurry and collect cycle bleeder.The pneumatic pressure electromagnetic valve adjustable range of joining automatically is wide, and inflation usefulness height is convenient to safeguard and change, can be according to dynamically balanced requirement, and the regulated at will air inflow again can plugging, guarantees the continuity of system's operation, stability, reliability makes flotation speed up simultaneously.
(6) the present invention divides 1/2 place of the rotational flow sorting section pan feeding section of selections and bottom at flotation cylinder middle part state micro-bubble, be be provided with on the flotation bucket liquid level plane " multiple spot more than 2 extracts the coal slime ore pulp; through (the above multitube mineralisings of the flotation column 2 pipes) sorting unit that repeatedly circulates ", improve the flotation precision and the efficient of sorting cleaned coal: by going into stock column inward turning stream device, the rotational flow sorting section that state micro-bubble in the middle part of cooperating divides selections and bottom, the selected coal slime that extracts is carried out top eddy flow gravity separation, middle part state micro-bubble section is scanned, and gravity separation is strengthened in eddy flow section circulation in bottom.This multiple spot (more than 2) extracts the coal slime ore pulp, sorting repeatedly circulates through (the above multitube mineralising of flotation column 2 pipes), because bubble generator utilizes external aerator (pump) pressurization, mix stirring with air, ore pulp makes the coal grain constantly with the bubble hit mineralising under action of centrifugal force, swims to the top, flow into the concentrate feeder, improved the separating effect of flotation column greatly.This in a cylinder, finished roughly select, selected and scan process; Make the quality of cleaned coal that sub-elects good, rate of recovery height.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Marginal data
1, inflator pump 2, dehvery pump
3, circulating pump 4, cylinder
5, concentrate feeder 6, material loop exit
7, tailings discharging case 8, the first concentrate discharge electric solenoid valve
9, the second concentrate discharge electric solenoid valve 10, circulation control valve
11, cyclone in external caisson 12, the post
13, automatic discharge valve 14, collect automatic distributing valve
15, the automatic distributing valve 16 of discharging, concentrate floss hole
17, charging aperture
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
Referring to shown in Figure 1, a kind of flotation column that is used for sorting mineral of the present invention, it comprises cylinder 4, in the described cylinder 4 by being divided into concentrate feeder 5 under last successively, sorting bucket and tailings discharging case 7, offer more than one concentrate floss hole 16 on the described concentrate feeder 5, concentrate floss hole 16 places are provided with and can carry out the concentrate discharge electric solenoid valve that liquid level is regulated, described sorting bucket comprises that the middle part state micro-bubble divides selections and bottom rotational flow sorting section, the sorting bucket links to each other with external inflator pump 1, be equiped with cyclone 12 in the post in the sorting bucket, tailings discharging mouth place, described tailings discharging case 7 bottom is provided with the automatic discharge valve 13 with the interlock of concentrate discharge electric solenoid valve.Design can be carried out the concentrate discharge electric solenoid valve DT that liquid level is regulated in flotation cylinder top cleaned coal feeder 5 (A-1 place among the figure), it is the liquid level gauge height that is used for regulating automatically in the main body, the interlock that cooperates the automatic discharge valve 13 (DTP) of mine tailings slurry discharging, be more conducive to PLC industrialization control, last microcomputer is done the adjustment operation of data management and various parameters, realize collection " magnetic valve, electric contact pressure and liquid level control " concentrated and on-the-spot two-way control protective device in " PLC is full-automatic " of one; Be equipped with the industry monitoring system as required in addition, make function more complete, more perfect, not only improve effect, reliable, easy to maintenance especially.In the present embodiment, be provided with the first concentrate discharge electric solenoid valve 8 and the second concentrate discharge electric solenoid valve 9,2 different directions of subtend are discharged concentrate uniformly respectively, remain the stability of material in flotation column cleaned coal feeder 5.
The top of sorting bucket is provided with the charging aperture 17 that links to each other with extraneous dehvery pump 2 by pipeline, offer an above material loop exit 6 on the side at sorting bucket middle part, described material loop exit 6 links to each other with circulating pump 3 by pipeline and is connected to the top opening part of sorting bucket by pipeline.In the present embodiment, state micro-bubble divides 1/2 place of the rotational flow sorting section pan feeding section of selections and bottom in flotation cylinder middle part, be that " multiple spot more than 2 extracts the coal slime ore pulp; sorting unit repeatedly circulates through (the above multitube mineralising of flotation column 2 pipes) " is set on the flotation bucket liquid level A-2 plane, improve the flotation precision and the efficient of sorting cleaned coal.By going into stock column inward turning stream device 12, the rotational flow sorting section that the state micro-bubble in the middle part of cooperating divides selections and bottom is carried out top eddy flow gravity separation to the selected coal slime that extracts, and middle part state micro-bubble section is scanned, and gravity separation is strengthened in eddy flow section circulation in bottom.This multiple spot (more than 2) extracts the coal slime ore pulp, sorting repeatedly circulates through (the above multitube mineralising of flotation column 2 pipes), because bubble generator utilizes external aerator (pump) pressurization, mix stirring with air, ore pulp makes the coal grain constantly with the bubble hit mineralising under action of centrifugal force, swims to the top, flow into concentrate feeder 5, improved the separating effect of flotation column greatly.This in a cylinder, finished roughly select, selected and scan process; Make the quality of cleaned coal that sub-elects good, rate of recovery height.
The upper end of tailings discharging case 7 is a column, and the lower end is the vertebra shape, and its structure is made up of cylinder and cone, forms " dark vertebra tilts to collect automatic escaper ", and the afterbody of taper is established the wing drop marker board.Isolated other hydrophilies, high-ash mine tailing slurry (slag) enter the mine tailing bottom the flotation column automatically after the sorting, after mine tailing is sunk, under the effect of shaking forces such as flotation eddy flow stirring, under the effect of the blowing pressure of external air pressure and mine tailing self gravitation, make the discharging automatically of mine tailings slurry, guarantee the continuity of system's operation, improve flotation efficiency.
Automatic discharge valve 13 links to each other with air pump through collecting automatic distributing valve 14 (M-1), discharging automatic distributing valve 15 (M-2) and pipeline respectively.Collect and discharge design " the pneumatic pressure electromagnetic valve of joining automatically " in the implementation process at the mine tailings slurry, make it become automaton with the PLC interface linkage: adopt the M-2 Pneumatic pressure node starting PLC of external (ore pulp) gas charging system air pump C to open the pneumatic pressure electromagnetic valve DTP (have adjusting function is good, decompression is wear-resisting, easy to maintenance) that joins automatically of mine tailing discharge automatically, the wing drop marker board that mine tailing tilts to collect automatic escaper through dark vertebra is discharged automatically from the bottom discharging mouth and is flowed into the tail-box; Simultaneously with flotation cylinder top cleaned coal feeder A-1 in the liquid level self-checking device that designs keep balance, automatically opening mine tailing discharge air-powered electromagnetic distributing valve DTP by M-1 Pneumatic pressure node starting PLC closes " boring inclination automatic discharge plate deeply " and carries out the mine tailings slurry and collect cycle bleeder.The pneumatic pressure electromagnetic valve adjustable range of joining automatically is wide, and inflation usefulness height is convenient to safeguard and change, can be according to dynamically balanced requirement, and the regulated at will air inflow again can plugging, guarantees the continuity of system's operation, stability, reliability makes flotation speed up simultaneously.
With the coal slime flotation in-0.5MM granularity and following (fine) flyash is example, and its concrete steps are:
1, sorting: the mixed ore pulp after dosing is stirred (claims charging pump P=37-75KW again by an acidproof delivery pump, size apolegamy according to the flotation column diameter) charging, in the ore pulp sorter of the top of flotation column, directly finish the feed of flotation column, inflation, mineralising, a series of rougher process such as foaming), automatically inflate by external air pump, ore pulp is roughly selected with the abundant mineralising of liquid medicine under the effect of aerodynamic force, the concentrate material (grain) of bubble upper strata emersion directly enters among the cleaned coal feeder A-1 at flotation column top, open " 2 concentrate discharge electric solenoid valves ": DT (K) by " liquid level self-checking device " automatic adjustment, TD (K-1) is directly sent into the concentrate grain that floatingly selects in the concentrate stock tank by plasma discharge jet magnetic valve.
2, scan with tail and select: remaining mixed ore pulp is entered in the flotation bucket of flotation column bottom, divide 1/2 place between the rotational flow sorting section of selections and bottom to carry out " (more than 2) multiple spot extracts the coal slime ore pulp; through (the above multitube mineralizer of flotation column 2 pipes) repeatedly circulation " sorting at the state micro-bubble at flotation column middle part, what move in circles carries out top eddy flow gravity separation to selected coal slime, middle part state micro-bubble section is scanned, the choosing of gravity tail is strengthened in bottom eddy flow section circulation, utilize external aerator (pump) C pressurization, mix stirring with air, ore pulp is under action of centrifugal force, make the coal grain constantly with the bubble hit mineralising, swim to the top, flow in the concentrate feeder A-1.
3, separate mine tailing ash (slag) automatically: to last remaining other hydrophilies of flotation, high-ash mineral matter mine tailing (slag) slurry enters in the mine tailing " dark vertebra tilts to collect automatic escaper " of flotation column bottom: after treating that mine tailing sinks, under the effect of shaking forces such as flotation eddy flow stirring, automatically open mine tailing discharge electromagnetism distributing valve DTP under the effect by the blowing pressure (M-2) of external air pressure and mine tailing self gravitation, mine tailing is discharged the inflow tail-box from the bottom discharging mouth automatically by dark awl inclination automatic discharge plate.Simultaneously with flotation cylinder top cleaned coal feeder A-1 in the liquid level self-checking device that designs keep balance, open mine tailing discharge air-powered electromagnetic distributing valve DTP automatically by M-1 Pneumatic pressure node starting PLC and close " boring inclination automatic discharge plate deeply " and carry out the mine tailings slurry and collect.Cycle bleeder regathers afterwards, again discharging ... so circulation.
4, design " liquid level self-checking device " DT in the cleaned coal feeder A-1 of flotation cylinder top, automatic discharge " the pneumatic pressure electromagnetic valve of joining automatically " the DTP interlock that cooperates the discharging of mine tailings slurry, adopt PLC industrialization control, last microcomputer is done the adjustment operation of data management and various parameters, realize collection " magnetic valve, electric contact pressure and liquid level control " concentrated and on-the-spot two-way control in " PLC is full-automatic " of one.
Use the effect (actual result with above-mentioned coal slime flotation is example) of flotation column of the present invention:
Disposal ability: every flotation column is handled coal slime slurry 220m3/h, the about 8-10t of dry coal mud treating capacity, output cleaned coal: 5.5-7t/h;
Technological effect: flotation column pan feeding coal slime ashes 17-20%, cleaned coal ashes 8.5-9.5%, tail coal ashes 53-56% is about 75-80% according to the measuring and calculating clean coal recovery.
The above only is a preferred implementation of the present invention, and protection scope of the present invention also not only is confined to the foregoing description, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the principle of the invention prerequisite, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1, a kind of flotation column that is used for sorting mineral, it is characterized in that: it comprises cylinder (4), described cylinder (4) is interior by being divided into concentrate feeder (5) under last successively, sorting bucket and tailings discharging case (7), offer more than one concentrate floss hole (16) on the described concentrate feeder (5), concentrate floss hole (16) is located to be provided with and can be carried out the concentrate discharge electric solenoid valve that liquid level is regulated, described sorting bucket comprises that the middle part state micro-bubble divides selections and bottom rotational flow sorting section, the sorting bucket links to each other with external inflator pump (1), be equiped with cyclone (12) in the post in the sorting bucket, tailings discharging mouth place, described tailings discharging case (7) bottom is provided with the automatic discharge valve (13) with the interlock of concentrate discharge electric solenoid valve.
2, the flotation column that is used for sorting mineral according to claim 1, it is characterized in that: the top of described sorting bucket is provided with the charging aperture (17) that links to each other with extraneous dehvery pump (2) by pipeline, offer an above material loop exit (6) on the side at sorting bucket middle part, described material loop exit (6) links to each other with circulating pump (3) by pipeline and is connected to the top opening part of sorting bucket by pipeline.
3, the flotation column that is used for sorting mineral according to claim 1 and 2 is characterized in that: the upper end of described tailings discharging case (7) is a column, and the lower end is the vertebra shape, and its structure is made up of cylinder and cone, and the afterbody of taper is established the wing drop marker board.
4, the flotation column that is used for sorting mineral according to claim 1 and 2 is characterized in that: described automatic discharge valve (13) is respectively through collecting automatic distributing valve (14), discharging automatic distributing valve (15) and pipeline links to each other with inflator pump (1).
5, the flotation column that is used for sorting mineral according to claim 3 is characterized in that: described automatic discharge valve (13) is respectively through collecting automatic distributing valve (14), discharging automatic distributing valve (15) and pipeline links to each other with inflator pump (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2008101430764A CN100562370C (en) | 2008-10-09 | 2008-10-09 | The flotation column that is used for sorting mineral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101430764A CN100562370C (en) | 2008-10-09 | 2008-10-09 | The flotation column that is used for sorting mineral |
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| Publication Number | Publication Date |
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| CN101362119A CN101362119A (en) | 2009-02-11 |
| CN100562370C true CN100562370C (en) | 2009-11-25 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101844113B (en) * | 2010-06-08 | 2012-11-14 | 长沙矿冶研究院 | Flotation machine for efficiently recovering fine-particle minerals |
| CN102179314B (en) * | 2011-05-24 | 2013-01-02 | 中国矿业大学 | Sorting device and method for aerating cyclonic micro-bubble flotation column |
| CN102284370B (en) * | 2011-06-10 | 2014-01-01 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Turbulent current fly ash flotation process |
| CN102441493A (en) * | 2011-10-01 | 2012-05-09 | 张明达 | High-efficient environment-friendly citric acid desulfuration method for tin middling mine |
| CN105817343B (en) * | 2014-04-11 | 2018-01-30 | 衢州市优德工业设计有限公司 | A kind of flotation column |
| CN105880036B (en) * | 2014-04-11 | 2019-03-05 | 衢州市优德工业设计有限公司 | High reliability flotation column |
| CN103920597B (en) * | 2014-04-28 | 2017-02-01 | 金玛（宽甸）硼矿有限公司 | Method and device for separating boric acid and magnesium sulfate |
| CN105498981B (en) * | 2016-02-23 | 2017-08-25 | 中国矿业大学 | High-carbon fly ash flotation decarbonization process with foam stabilization characteristic |
| CN108452950A (en) * | 2017-06-05 | 2018-08-28 | 湖北博南科技有限公司 | The device and its beneficiation method of high-magnesium-phosphorus ore are sorted based on reducing flotation column |
| CN110385193B (en) * | 2019-08-31 | 2023-06-16 | 贵州大学 | Automatic floating and sinking experiment device and method for coal density classification |
| CN110586342B (en) * | 2019-10-24 | 2021-08-13 | 郑州大学 | Hydraulic floatation equipment for fluidized coarse-grained minerals |
| CN110882849B (en) * | 2019-12-04 | 2020-09-04 | 中国矿业大学 | Cavitation pretreatment and carrier flotation combined fine mineral separation method |
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