CN104922943A - Collophanite direct flotation fine-grade tailing settlement concentration method - Google Patents
Collophanite direct flotation fine-grade tailing settlement concentration method Download PDFInfo
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- CN104922943A CN104922943A CN201510203561.6A CN201510203561A CN104922943A CN 104922943 A CN104922943 A CN 104922943A CN 201510203561 A CN201510203561 A CN 201510203561A CN 104922943 A CN104922943 A CN 104922943A
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Abstract
The invention relates to a collophanite direct flotation fine-grade tailing settlement concentration treatment method. The method comprises the following steps: (1) a proper amount of lime milk is added into collophanite direct flotation fine-grade tailing pulp with a mass percentage concentration no higher than 20%, and the mixture is well mixed by stirring; (2) a proper amount of a high-molecular flocculating agent with a molecular weight of 8,000,000-20,000,000 is added to the fine-grade tailing pulp treated in the step (1), and the mixture is well mixed by stirring; (3) the direct flotation fine-grade tailing pulp treated in the step (2) enters a settlement densifying device, and can settle rapidly, such that direct flotation fine-grade tailing with a mass percentage concentration no lower than 50% and clarified water (circulation water) with low solid content can be obtained. Therefore, the purpose of direct flotation fine-grade tailing fast settlement concentration is achieved. Compared to conventional collophanite floatation tailing settlement concentration processes, the method provided by the invention has the advantages of simple process, low cost, high settlement concentration speed, high tailing compression concentration, easy filtration dehydration, and the like.
Description
Technical field
The present invention relates to a kind of method of collophane direct flotation fine fraction mine tailing sedimentation concentration.Belong to the technology of collophane direct flotation tailings glass.
Background technology
Phosphorus ore is the important industrial chemicals mineral produced phosphate fertilizer and produce yellow phosphorus, phosphoric acid and other multiple phosphorization products, has basic chemical industry raw material and raw material double attribute of supporting agriculture, has critical role and effect in national economy and social development.Along with the high speed development of Phosphate Fertilizer Industry, exploitation and the consumption of phosphorus ore also sharply rise, and the overall grade of phosphorus ore declines day by day, cause impurity component in phosphoric acid to become more and more complicated, and exploitation mid low grade phosphate rock stone becomes the task of top priority.For the low magnesium collophane of high silicon, major impurity is quartz and silicate impurity, and main employing direct flotation flow process, removes quartz and silicate impurity, enrichment valuable mineral at present, relatively simple in collophane sorts.The ore grinding particle size that collophane direct flotation requires is thinner, floatation process needs to use sodium carbonate, waterglass etc. to play the beneficiation reagent of peptizaiton, the waterglass wherein used is a kind of inorganic colloid, is widely used as the inhibitor of the gangue mineral such as quartz, silicate, sludge dispersant etc. in collophane top-ups ore dressing.The sludge peptizaiton of waterglass plays a part very good to floatation process, but this peptizaiton plays adverse effect to the mine tailing sedimentation concentration that flotation produces, make the mine tailing not free settling of micro-size fraction, natural subsidence required time is long, and in primary water, solids content is large.So need research can shorten direct flotation fine fraction mine tailing high-efficiency sedimentation concentration time and the technology that in primary water, solids content is low.
Summary of the invention
The object of the present invention is to provide a kind of method of collophane direct flotation fine fraction mine tailing sedimentation concentration, its energy rapid subsidence collophane direct flotation fine fraction mine tailing, shorten the sedimentation time, reduce the solids content of primary water, reduce the difficulty of this kind of mine tailing sedimentation concentration, be a kind of economy, technology that high-efficiency sedimentation that environmental protection is suitable for promoting the use of concentrates collophane direct flotation mine tailing.
The technical scheme that the new method of collophane direct flotation fine fraction mine tailing sedimentation concentration of the present invention adopts is:
(1) the collophane direct flotation fine fraction mine tailing ore pulp of mass percent concentration≤20% is added appropriate milk of lime in whipping process, adjustment slurry pH is 10 ~ 12;
(2) processed in (1) that to add appropriate molecular weight in mine tailing ore pulp be 800 ~ 2,000 ten thousand high polymer coagulants, stirred and evenly mixed;
(3) the direct flotation fine fraction mine tailing ore pulp after (2) process enters in sedimentation and thickening device can sedimentation rapidly, can obtain the direct flotation fine fraction mine tailing of mass percent concentration >=50% and the low primary water (or recirculated water) of solids content.
The invention has the beneficial effects as follows:
1. the method that collophane direct flotation fine fraction mine tailing high-efficiency sedimentation is concentrated, makes collophane direct flotation fine fraction mine tailing rapid subsidence, obtains high-concentration tailings.
2. the solids content of primary water is reduced.
3. the flow process of sedimentation concentration is simple, cost is low, workable, easy industrial applications, reduces the difficulty of sedimentation concentration.
Compared with conventional Collophanite flotation mine tailing sedimentation concentration, the present invention has the features such as technique is simple, cost is low, sedimentation concentration speed fast, mine tailing compression concentration is high, easy filtering means dehydration.Simultaneously, because tailings concentration is high, add flotation mill's Inner eycle water use amount, improve Tailings transportation concentration, reduce tailings storage backwater tapered utilization, the treatment technology that the collophane direct flotation mine tailing high-efficiency sedimentation that reduction flotation production cost is a kind of economy, environmental protection is suitable for promoting the use of is concentrated.
Accompanying drawing explanation
Fig. 1 collophane direct flotation fine fraction mine tailing high-efficiency sedimentation concentration flow path figure.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but be not limited to embodiment.In an embodiment, apart from special instruction, all percentage compositions are mass percent.
embodiment 1
In certain siliceous collophane mill head ,-0.025mm grain size content is 70.96%, by adding sodium carbonate 2 kg/ton raw ore, waterglass 8 kg/ton raw ore, collecting agent 2 kg/ton raw ore, and other medicaments carry out direct flotation operation on a small quantity, after flotation operation completes, acquisition concentration is the direct flotation mine tailing of 20%, milk of lime 200 grams/ton is added in this mine tailing ore pulp, after stirring and evenly mixing, add the high polymer coagulant 30 grams/ton that molecular weight is 8,000,000, sedimentation concentration after stir process, obtaining tailings concentration after 30 minutes is 50%, in primary water (ring water), solids content is 0.5g/L.
The high-efficiency sedimentation concentration technique of acquisition is used for collophane direct flotation fine fraction mine tailing sedimentation concentration dewatering operation, compared with conventional Collophanite flotation mine tailing sedimentation concentration technology, this technology can solid particle comparatively fast in settling tailings ore pulp, shorten the sedimentation time, obtain the low primary water of solids content (ring water) and high-concentration tailings, reduce the difficulty of fine fraction mine tailing sedimentation concentration largely; Because tailings concentration is high, add flotation mill's Inner eycle water use amount, improve Tailings transportation concentration, decrease tailings storage backwater tapered utilization, reduce flotation production cost; Meanwhile, the mine tailing obtained through this technology sedimentation concentration is more conducive to, with vacuum filtration or press filtration, reaching higher concentration, reduces the moisture content in mine tailing, reduces difficulty in filtration, shortens filtration time, and mine tailing is suitable for the dry row of dry heap.
embodiment 2
In certain siliceous collophane mill head ,-0.025mm grain size content is 70.96%, by adding sodium carbonate 5 kg/ton raw ore, waterglass 6.5 kg/ton raw ore, collecting agent 3.5 kg/ton raw ore, and other medicaments carry out direct flotation operation on a small quantity, after flotation operation completes, acquisition concentration is the direct flotation mine tailing of 18%, milk of lime 300 grams/ton is added in this mine tailing ore pulp, after stirring and evenly mixing, add the high polymer coagulant 40 grams/ton that molecular weight is 1,400 ten thousand, sedimentation concentration after stir process, obtaining tailings concentration after 30 minutes is 52%, in primary water (ring water), solids content is 0.25g/L.
Compared with the sedimentation of conventional Collophanite flotation mine tailing, the technology of the present invention can solid particle comparatively fast in settling tailings ore pulp, comprises fine mud dirt suspension wherein, shortens the sedimentation time, reduce the solids content of primary water, reduce the difficulty of sedimentation concentration largely.
embodiment 3
In certain siliceous collophane mill head ,-0.025mm grain size content is 73.84%, by adding sodium carbonate 4 kg/ton raw ore, waterglass 7 kg/ton raw ore, collecting agent 2 kg/ton raw ore, and other medicaments carry out direct flotation operation on a small quantity, after flotation operation completes, acquisition concentration is the direct flotation mine tailing of 20%, milk of lime 300 grams/ton is added in this mine tailing ore pulp, after stirring and evenly mixing, add the high polymer coagulant 30 grams/ton that molecular weight is 1,600 ten thousand, sedimentation concentration after stir process, obtaining tailings concentration after 30 minutes is 55%, in primary water (ring water), solids content is 0.3g/L.
Claims (1)
1. the method that collophane direct flotation fine fraction mine tailing high-efficiency sedimentation is concentrated, is characterized in that:
(1) the collophane direct flotation fine fraction mine tailing ore pulp of mass percent concentration≤20% is added appropriate milk of lime in whipping process, adjustment slurry pH is 10 ~ 12;
(2) processed in step (1) that to add appropriate molecular weight in mine tailing ore pulp be 800 ~ 2,000 ten thousand high polymer coagulants, stirred and evenly mixed;
(3) the direct flotation fine fraction mine tailing ore pulp after step (2) process enters in sedimentation and thickening device can sedimentation rapidly, can obtain the direct flotation fine fraction mine tailing of mass percent concentration >=50% and the low primary water of solids content or recirculated water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510203561.6A CN104922943A (en) | 2015-04-27 | 2015-04-27 | Collophanite direct flotation fine-grade tailing settlement concentration method |
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| CN201510203561.6A CN104922943A (en) | 2015-04-27 | 2015-04-27 | Collophanite direct flotation fine-grade tailing settlement concentration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277674A (en) * | 2016-08-31 | 2017-01-04 | 北京矿冶研究总院 | Construction method of tail mud barrier layer of acid waste rock field sealing |
| CN108927279A (en) * | 2018-08-23 | 2018-12-04 | 江西铜业集团有限公司 | Microfine rare earth flotation tailing high-efficiency sedimentation method based on modified ironmaking slag |
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| CA2429476A1 (en) * | 2000-11-29 | 2002-06-06 | Ciba Specialty Chemicals Water Treatments Limited | Flocculation of mineral suspensions |
| CN103657840A (en) * | 2013-07-10 | 2014-03-26 | 中蓝连海设计研究院 | Dry type discharge method of phosphorus ore tailings |
| CN103819016A (en) * | 2013-12-31 | 2014-05-28 | 云南磷化集团有限公司 | Method for treating backwater from mixed production process of collophanite |
| CN203959963U (en) * | 2014-07-01 | 2014-11-26 | 广东梅雁吉祥水电股份有限公司 | A kind of molten phosphorus Waste Water Treatment |
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2015
- 2015-04-27 CN CN201510203561.6A patent/CN104922943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2429476A1 (en) * | 2000-11-29 | 2002-06-06 | Ciba Specialty Chemicals Water Treatments Limited | Flocculation of mineral suspensions |
| CN103657840A (en) * | 2013-07-10 | 2014-03-26 | 中蓝连海设计研究院 | Dry type discharge method of phosphorus ore tailings |
| CN103819016A (en) * | 2013-12-31 | 2014-05-28 | 云南磷化集团有限公司 | Method for treating backwater from mixed production process of collophanite |
| CN203959963U (en) * | 2014-07-01 | 2014-11-26 | 广东梅雁吉祥水电股份有限公司 | A kind of molten phosphorus Waste Water Treatment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277674A (en) * | 2016-08-31 | 2017-01-04 | 北京矿冶研究总院 | Construction method of tail mud barrier layer of acid waste rock field sealing |
| CN106277674B (en) * | 2016-08-31 | 2019-10-25 | 北京矿冶研究总院 | Construction method of tail mud barrier layer of acid waste rock field sealing |
| CN108927279A (en) * | 2018-08-23 | 2018-12-04 | 江西铜业集团有限公司 | Microfine rare earth flotation tailing high-efficiency sedimentation method based on modified ironmaking slag |
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Application publication date: 20150923 |