CN101433883A - Multilevel adverse current contact iron ore reverse flotation process and equipment - Google Patents
Multilevel adverse current contact iron ore reverse flotation process and equipment Download PDFInfo
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- CN101433883A CN101433883A CNA200810154237XA CN200810154237A CN101433883A CN 101433883 A CN101433883 A CN 101433883A CN A200810154237X A CNA200810154237X A CN A200810154237XA CN 200810154237 A CN200810154237 A CN 200810154237A CN 101433883 A CN101433883 A CN 101433883A
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Abstract
The invention relates to a multistage countercurrent contact-type iron ore reverse floatation process and equipment thereof. Evenly mixed ore slurry is introduced into a feeding groove of a feeding distributor; the ore slurry distributed through the distributor enters a gas-liquid countercurrent contact-type reverse floatation tower and is sorted; gas phase needed by floatation enters a gas phase distributor; the gas phase distributor is prepared from a porous medium; gas is dispersed into microbubbles through the porous medium; the microbubbles move upwards; a concentrated ore product obtained through the sorting of the reverse floatation tower flows out from a concentrated ore outlet of the bottom of the tower; gas-liquid bubbles carrying part of the concentrated ore product flow upwards and enter the upper layer of the floatation tower through the feeding distributor; washing liquid passes through a washing liquid feeding distributor and enters the floatation tower; the gas-liquid bubbles are subjected to multistage washing, are reclaimed with the concentrated ore product, enter a bubble collecting tank and are discharged from a tail ore outlet. A multistage countercurrent type contact structure can provide larger height of a floatation region, can better meet the requirement of large-batch processing and simultaneously has wide practicability because of simple structure, low manufacturing cost and good floatation effect.
Description
Technical field
The present invention relates to iron ore reverse floatation process flow process and equipment, particularly a kind of multilevel adverse current contact iron ore reverse flotation process and equipment.
Background technology
The tradition preparation equipment mainly adopts the turbomachine agitation type flotation machine, its groundwork principle is that the raw ore that will grind adds the medicament of water and necessity behind tank diameter furnishing ore pulp, the pulp tank that injection begins to stir, when impeller rotates, produce negative pressure in the impeller cavity, the pump line of air by hollow sucked, and disperse forms bubble population in ore pulp, some are difficult for being attached on the bubble by water-moistened hydrophobic mineral particle, and float to the ore pulp surface with bubble, form the mineral laden bubble layer, other hydrophilic mineral particles are not attached on the bubble, and stay in the ore pulp, the mineral laden bubble that will contain certain minerals is discharged, and reaches the purpose of ore dressing.But adopt the flotation device investment high; Floor space is bigger; Energy consumption is big; Bubble size should not be controlled; Less with effective contact area of ore pulp; Parts rapid wears such as stator blade wheel; And be the single stage operation process, effectively flotation area is less, and the concentrate rate of recovery is lower.
Summary of the invention
The object of the present invention is to provide a kind of multilevel adverse current contact iron ore reverse flotation process.
A kind of multilevel adverse current contact iron ore reverse flotation process of the present invention comprises the steps: mixed uniform ore pulp is fed the feed well of feed distributor, and the ore pulp after distributor distributes enters gas-liquid counter current contact tower for reverse flotation and carries out sorting; The required gas phase of flotation enters the gas phase distributor at the bottom of tower, the gas phase distributor adopts the porous media preparation, and gas is separated into microbubble by porous media and moves upward; The concentrate outlet at the bottom of the tower of concentrate product through obtaining after the tower for reverse flotation sorting is flowed out; The gas-liquid foam that carries part concentrate product upwards flows and enters the flotation tower upper strata through feed distributor; Cleaning solution enters flotation tower by the cleaning solution feed distributor, and the gas-liquid foam enters the foam feeder through behind the multistage washing and recycling concentrate product, discharges through the mine tailing outlet; The liquid that flows downward carries the concentrate outlet at the bottom of the tower of the concentrate product that washs and flows out.
Multilevel adverse current contact iron ore reverse flotation process of the present invention, concrete steps are as follows: at first medicament, raw ore and water are added in the slurry preparation groove 1, stir and form uniform ore pulp, ore pulp is squeezed into ore pulp feed distributor 3 from slurry preparation groove 1 by ore pulp delivery pump 2, in the flotation column 5 in evenly flowing into selected section 4 after distributing, pass through flotation column 5 deflectors 6 then, under microvesicle generators 7 effect, carry out the selected of mineral, discharge through the concentrate outlet 8 at the bottom of the tower of resulting concentrate behind the multi-stage countercurrent contact reverse flotation; Increase with the ore pulp addition, liquid level raises gradually in the tower body, the gas-liquid foam that carries part concentrate product upwards flows and enters upper strata washing section 9 through feed distributor 3, the cleaning solution feed distributor 10 that cleaning solution is squeezed into washing section 9 upper stratas by cleaning solution storage tank 16 through cleaning solution delivery pump 15 enters flotation tower, the gas-liquid foam enters foam feeder 11 through behind the multistage washing and recycling concentrate product of washing section, discharges through mine tailing outlet 12; The liquid that flows downward in the washing section carries the concentrate product that washs and enters selected section 4.
The equipment of multilevel adverse current contact iron ore reverse flotation process of the present invention, comprise flotation column, deflector, feed distributor, it is characterized in that flotation tower is made of the multilayer tower body, feed distributor is positioned at the flotation tower middle part, the feed distributor top is a washing section, and the feed distributor below is selected section; The flotation tower the top is provided with the cleaning solution feed distributor, and cleaning solution feed distributor top is the foam feeder; The superiors' tower body one side opening is equipped with liquid level gauge; Flotation tower tower body below is provided with microvesicle generators; Washing section all is connected deflector by the multilayer flotation column and forms with selected section, and every flotation column below correspondence is provided with a baffle.
Multilevel adverse current contact iron ore reverse flotation equipment of the present invention comprises flotation column, deflector, microvesicle generators, structured packing, ore pulp feed distributor, cleaning solution feed distributor and tank level control system.Feed distributor is positioned at the equipment middle part, and ore pulp is entered in the flotation tower by the ore pulp feed distributor, and flotation tower is made of the multilayer tower body, and the part tower body is positioned at the feed well top, is called washing section, and all the other tower bodies are positioned at the feed well below, are called selected section; The superiors tower body top is provided with the cleaning solution feed distributor, and cleaning solution feed distributor top is the foam feeder; Orlop tower body below is provided with microvesicle generators; The superiors' tower body one side opening is equipped with liquid level gauge.
In the multilevel adverse current contact iron ore reverse flotation equipment of the present invention, the multilayer flotation tower is main screening installation.The even flotation column of placing the built-in structured packing of some in every layer of tower body, every flotation column below correspondence is provided with a deflector.
Multilevel adverse current contact iron ore reverse flotation equipment of the present invention, the combination of epimere multi-stage countercurrent contact reverse flotation tower body and hypomere multi-stage countercurrent contact reverse flotation tower body, whole tower multi-level countercurrent contact structures have been formed, bigger flotation area height is provided, improve the grade and the rate of recovery of concentrate greatly, reduced the concentrate product iron content in the mine tailing simultaneously.Compare with traditional sorting process, the advantage of multilevel adverse current contact iron ore reverse flotation is: small investment, energy consumption is little, floor space is little; Hold the difference of holding tolerance in tolerance and the downspout in the flotation column in every section tower body and cause circulating of fluid, help fully contacting of bubble and ore pulp particle; It is less to adopt microvesicle formula gas generator to produce bubble diameter, and number is many, the collision of ore particle and bubble and to stick together probability bigger, and the while aeration quantity is easily regulated, and is easy to operate; Adopt the cleaning solution feed distributor in tower body, to add cleaning solution uniformly, the concentrate that can smoothly upper strata multi-stage countercurrent contact flotation tower sorting be produced is transported to lower floor, and the concentrate that is produced with lower floor's multi-stage countercurrent contact reverse flotation is together flowed out by concentrate outlet at the bottom of the tower; The multi-level countercurrent contact structures can provide bigger flotation area height, also can satisfy requirement of large-batch processing preferably, because it is simple in structure, and cost is low, flotation effect is good, has practicality widely simultaneously.
Description of drawings
Fig. 1: multilevel adverse current contact iron ore reverse flotation process flow chart;
Fig. 2: multilevel adverse current contact iron ore reverse flotation equipment.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, 2, new multistage adverse current contact iron ore reverse flotation process of the present invention at first adds medicament, raw ore and water in the slurry preparation groove 1, forms uniform ore pulp after stirring a period of time.Ore pulp is squeezed into ore pulp feed distributor 3 from slurry preparation groove 1 by ore pulp delivery pump 2, in the flotation column 5 in evenly flowing into selected section 4 after distributing, under flotation column 5, deflector 6 and microvesicle generators 7 effects, carry out the selected of mineral, discharge through the concentrate outlet 8 at the bottom of the tower of resulting concentrate behind the selected section 4 multi-stage countercurrent contact reverse flotation, this concentrate is final products.Increase with the ore pulp addition, liquid level raises gradually in the tower body, the gas-liquid foam that carries part concentrate product upwards flows and enters upper strata washing section 9 through feed distributor 3, the cleaning solution feed distributor 10 that cleaning solution is squeezed into washing section 9 upper stratas by cleaning solution storage tank 16 through cleaning solution delivery pump 15 enters flotation tower, the gas-liquid foam enters foam feeder 11 through behind the multistage washing and recycling concentrate product of washing section, discharges through mine tailing outlet 12.The liquid that flows downward in the washing section carries the concentrate product that washs and enters selected section 4.
As shown in Figure 2, new multistage adverse current contact iron ore reverse flotation equipment of the present invention, mainly by slurry preparation groove 1, ore pulp feed distributor 3, selected section 4, washing section 9, cleaning solution feed distributor 10, baffle 6, microvesicle generators 7, liquid level gauge 13 constitutes.Feed distributor 3 tops are provided with washing section 9, and feed distributor 3 belows are provided with selected section 4.Evenly vertically be placed with the flotation column 5 that structured packing is housed in every grade of tower body, every flotation column below correspondence is provided with a baffle 6, multi-stage countercurrent contact reverse flotation tower body 5 tops, upper strata are provided with cleaning solution feed distributor 10, distributor 10 is connected with foam feeder 11, and mine tailing outlet 12 is positioned at foam feeder 11 1 sides.At washing section 9 the superiors' tower bodies one side opening liquid level gauge 13 is housed.The selected section 4 equidistant level in bottom is equipped with the microvesicle generators 7 of some, and microvesicle generators 7 connects inflation inlet 14.A side is equipped with concentrate outlet 8 at the bottom of the selected section tower.
A kind of multi-level countercurrent contact iron ore reverse flotation process and equipment that the present invention proposes, be described in detail, person skilled obviously can be in not breaking away from content of the present invention, spirit and scope to technological process as herein described and equipment is changed or suitably change and combination, realize the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (3)
1. a multilevel adverse current contact iron ore reverse flotation process is characterized in that comprising the steps: and will mix the feed well that uniform ore pulp feeds feed distributor, and the ore pulp after distributor distributes enters gas-liquid counter current contact tower for reverse flotation and carries out sorting; The required gas phase of flotation enters the gas phase distributor at the bottom of tower, the gas phase distributor adopts the porous media preparation, and gas is separated into microbubble by porous media and moves upward; The concentrate outlet at the bottom of the tower of concentrate product through obtaining after the tower for reverse flotation sorting is flowed out; The gas-liquid foam that carries part concentrate product upwards flows and enters the flotation tower upper strata through feed distributor; Cleaning solution enters flotation tower by the cleaning solution feed distributor, and the gas-liquid foam enters the foam feeder through behind the multistage washing and recycling concentrate product, discharges through the mine tailing outlet; The liquid that flows downward carries the concentrate outlet at the bottom of the tower of the concentrate product that washs and flows out.
2. multilevel adverse current contact iron ore reverse flotation process as claimed in claim 1, it is characterized in that concrete steps are as follows: at first with medicament, raw ore and water add in the slurry preparation groove (1), stir and form uniform ore pulp, ore pulp is squeezed into ore pulp feed distributor (3) from the slurry preparation groove by ore pulp delivery pump (2), distributing, the back is even to be flowed in selected section (4) interior flotation column (5), pass through flotation column (5) then, deflector (6), carry out the selected of mineral down in microvesicle generators (7) effect, through concentrate outlet (8) discharge at the bottom of the tower of resulting concentrate behind the multi-stage countercurrent contact reverse flotation; Increase with the ore pulp addition, liquid level raises gradually in the tower body, the gas-liquid foam that carries part concentrate product upwards flows and enters upper strata washing section (9) through feed distributor (3), the cleaning solution feed distributor (10) that cleaning solution is squeezed into washing section (9) upper strata by cleaning solution storage tank (16) through cleaning solution delivery pump (15) enters flotation tower, the gas-liquid foam enters foam feeder (11) through behind the multistage washing and recycling concentrate product of washing section, discharges through mine tailing outlet (12); The liquid that flows downward in the washing section carries the concentrate product that washs and enters selected section (4).
3. by the equipment of the multilevel adverse current contact iron ore reverse flotation process of claim 1, comprise flotation column, deflector, feed distributor, it is characterized in that flotation tower is made of the multilayer tower body, feed distributor is positioned at the flotation tower middle part, the feed distributor top is a washing section, and the feed distributor below is selected section; The flotation tower the top is provided with the cleaning solution feed distributor, and cleaning solution feed distributor top is the foam feeder; The superiors' tower body one side opening is equipped with liquid level gauge; Flotation tower tower body below is provided with microvesicle generators; Washing section all is connected deflector by the multilayer flotation column and forms with selected section, and every flotation column below correspondence is provided with a baffle.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200810154237XA CN101433883A (en) | 2008-12-18 | 2008-12-18 | Multilevel adverse current contact iron ore reverse flotation process and equipment |
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| CNA200810154237XA CN101433883A (en) | 2008-12-18 | 2008-12-18 | Multilevel adverse current contact iron ore reverse flotation process and equipment |
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| CN101433883A true CN101433883A (en) | 2009-05-20 |
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| CNA200810154237XA Pending CN101433883A (en) | 2008-12-18 | 2008-12-18 | Multilevel adverse current contact iron ore reverse flotation process and equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284370A (en) * | 2011-06-10 | 2011-12-21 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Turbulent current fly ash flotation process |
| CN101757988B (en) * | 2010-01-06 | 2013-10-16 | 天津大学 | Tower for reverse flotation of multi-stage circulating-flow iron ore and process thereof |
| CN109135838A (en) * | 2018-09-25 | 2019-01-04 | 深圳瑞科天启科技有限公司 | A kind of water-coal-slurry cycle gasification system and method |
| CN109135837A (en) * | 2018-09-25 | 2019-01-04 | 深圳瑞科天启科技有限公司 | The wet process gasification process and system of a kind of water-coal-slurry or hydrocarbon slurry |
| CN111215239A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Tailing discarding magnetic separator with multilayer magnetic system |
| CN111215241A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Tailing discarding magnetic separator with multi-layer magnetic system and multi-row separation cavities |
-
2008
- 2008-12-18 CN CNA200810154237XA patent/CN101433883A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757988B (en) * | 2010-01-06 | 2013-10-16 | 天津大学 | Tower for reverse flotation of multi-stage circulating-flow iron ore and process thereof |
| CN102284370A (en) * | 2011-06-10 | 2011-12-21 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Turbulent current fly ash flotation process |
| 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 |
| CN109135838A (en) * | 2018-09-25 | 2019-01-04 | 深圳瑞科天启科技有限公司 | A kind of water-coal-slurry cycle gasification system and method |
| CN109135837A (en) * | 2018-09-25 | 2019-01-04 | 深圳瑞科天启科技有限公司 | The wet process gasification process and system of a kind of water-coal-slurry or hydrocarbon slurry |
| CN109135837B (en) * | 2018-09-25 | 2020-10-16 | 深圳瑞科天启科技有限公司 | Wet gasification method and system for coal water slurry or hydrocarbon slurry |
| CN109135838B (en) * | 2018-09-25 | 2021-02-19 | 深圳瑞科天启科技有限公司 | Coal water slurry circulating gasification system and method |
| CN111215239A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Tailing discarding magnetic separator with multilayer magnetic system |
| CN111215241A (en) * | 2019-11-13 | 2020-06-02 | 鞍钢集团矿业有限公司 | Tailing discarding magnetic separator with multi-layer magnetic system and multi-row separation cavities |
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Open date: 20090520 |