CN105289851A - Production technology for lead and zinc floatation mineral powder - Google Patents
Production technology for lead and zinc floatation mineral powder Download PDFInfo
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- CN105289851A CN105289851A CN201510839401.0A CN201510839401A CN105289851A CN 105289851 A CN105289851 A CN 105289851A CN 201510839401 A CN201510839401 A CN 201510839401A CN 105289851 A CN105289851 A CN 105289851A
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Abstract
The invention discloses a production technology for lead and zinc floatation mineral powder. The technology sequentially comprises the steps of a, ore crushing, b, ore grinding, c, ore dissolving pulp preparing, d, dosing and stirring, e, lead floatation, f, zinc floatation, g, water removing and h, milltailing treatment. Added drugs comprise inhibitors, collecting agents, activating agents and foaming agents. The inhibitors are made of one or several of zinc sulfate, lime, sodium sulphide and sodium sulfite, so that the hydrophilic property of the zinc ore is enhanced, and upward floating of the zinc ore is inhibited; the problem that the grade of zinc in the lead concentrates is high is solved, and the zinc recycling rate is improved; meanwhile, used flotation reagents are small in consumption, and the cost is saved; the whole production technology is environment-friendly; and the production technology is good in floatation effect, non-poisonous, free of time bound, wide in raw material resource and capable of being widely applied and popularized.
Description
Technical field
The present invention relates to the technical field of ore-dressing technique, particularly the technical field of the production technology of plumbous zinc flotation breeze.
Background technology
Plumbous zinc is one of metal of the comparatively morning that the mankind extract from lead-zinc ore, and in Pb-Zn deposits, plumbing mineral have 11 kinds, and Zn Cr coating mineral have 6 kinds, the most important with galena, zincblende; The chemical formula of galena is PbS, and crystal structure is isometric system, and sulphion becomes cubic closest packing, and lead ion is filled in all octahedral interstices; The chemical formula of zincblende is ZnS, and crystal structure is isometric system, and Zn ion distribution is in top, the angle of structure cell and the center of all, and S is arranged in the center of four small cubes of eight small cubes that structure cell is divided into.
In the flotation of Pb-Zn deposits, often through adding plumbous collecting agent and suppressing zinc floating inhibitor or inhibitor combination to come separation of lead breeze and zinc ore powder.At present, conventional inhibitor or inhibitor combination mainly contain: inhibitor combination made by (1) zinc sulfate and lime, and its cardinal principle makes mineral hydrophily strengthen the object reaching and suppress zinc to float, and namely zinc sulfate can ionize out Zn in the solution
2+and SO
4 2-, Zn
2+hydrolysis produces Zn (OH)
2+, in alkaline medium, obtain HZnO
-and ZnO
2 2-, they are adsorbed in mineral surfaces, and strengthen mineral surfaces hydrophily, but the action effect of said composition is not obvious, production target can not reach requirement, and causes the consumption of related agents large; (2) zinc sulfate and cyanide make inhibitor combination, and cyanide is Cymag and potassium cyanide mainly, also has cyanogas; Its cardinal principle is cyanide is the salt that strong base weak acid generates, and it is hydrolyzed in ore pulp, generates HCN and CN
-, with zinc sulfate conbined usage, generate the sediment of zinc, thus suppress the floating of zinc in plumbous district floatation process, the inhibitory action to zincblende can be strengthened, be specially at cyanide: when the mass ratio of zinc sulfate is 1:2.5, CN
-and Zn
2+form colloid Zn (CN)
2precipitation, inhibit the floating of zinc, but cyanide has severe toxicity, and the action effect of said composition is not good; (3) sulfurous acid, sulphite or SO
2gas makes inhibitor: sulfurous acid, sulphite or SO
2as inhibitor, rising inhibiting is HSO
3 -, need, in alkalescent ore pulp, just can play the effect of suppression, and sulphite is easy to lose efficacy in ore pulp, inhibitory action has time-bounded; Therefore, seeking a kind of low toxicity, without time-bounded and the suppression zinc floating inhibitor that inhibition is good or inhibitor combination, and then in floatation process, reduce the grade of zinc in lead concentrate, is the active demand of Pb-Zn deposits Mineral Processing Enterprises.
Summary of the invention
Object of the present invention solves the problems of the prior art exactly, and propose a kind of production technology of plumbous zinc flotation breeze, in the lead concentrate that method for floating can be made to obtain, zinc grade is low, and needed for flotation, pharmaceutical quantities is low, and whole explained hereafter can not cause environmental pollution.
For achieving the above object, the present invention proposes a kind of production technology of plumbous zinc flotation breeze, comprise the following steps successively:
A) muck, by ores lifting to boulder crusher, ore reduction is to-80mm, through transportation rubber belt 18 × 18mm vibratory sieve, ores lifting under vibratory sieve is to a point fine ore bin, ore on vibratory sieve carries out fragmentation by tape transport to fine crusher, then screens with 18*18mm vibratory sieve, circulates successively;
B) ore grinding, joins the ore in fine ore bin in ore mill and carries out ore grinding, and the abrasive particle size after ore grinding is 0.1 ~ 1mm;
C) configure the molten slurry of ore, the ore after fine grinding is added water and sizes mixing, regulate PH to 9 ~ 12;
D) administration stirring, in the molten slurry of ore, add inhibitor, collecting agent, activator and foaming agent, stirring driven by motor blade stirs, and mixing speed is 3000 ~ 5000r/min;
E) flotation of lead, plumbum floatation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes;
F) flotation zinc, zinc flotation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes;
G) dewater, carry out processed get product to the lead of flotation and zinc, described processed adopts and concentratedly adds filtration two stage dewatering technology;
H) tailings process, adopts ceramic filter to carry out processed to tailings.
As preferably, described inhibitor is one or more in zinc sulfate, lime, vulcanized sodium and sodium sulfite, and the mass ratio of inhibitor combination is
.
As preferably, described collecting agent is black powder and xanthate.
As preferably, the preferred butyl ammonium aerofloat of described black powder and 30 No. six black powder, the preferred butyl xanthate of xanthate.
As preferably, described activator preferably sulfuric acid copper, foaming agent is one or more in No. two flotation oils and RB series, and foaming agent is No. two oil preferably.
Beneficial effect of the present invention: the present invention is by by inhibitor being one or more in zinc sulfate, lime, vulcanized sodium and sodium sulfite, the clear water of zinc ore is strengthened, and then inhibit the floating of zinc ore, solve the problem that zinc in lead concentrate is of high grade, improve zinc recovery; Meanwhile, floating agent used in the present invention consumes little, cost-saving; Whole production technology environmental protection; Production technology flotation effect of the present invention is good, nontoxic, without time-bounded and raw material sources extensive, can carry out wide popularization and application.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the process chart of the ore reduction of the production technology of a kind of plumbous zinc flotation breeze of the present invention;
Fig. 2 is the process chart of the flotation of lead zinc of the production technology of a kind of plumbous zinc flotation breeze of the present invention.
[detailed description of the invention]
Consult Fig. 1 and Fig. 2, the present invention, comprise the following steps successively:
A) muck, by ores lifting to boulder crusher, ore reduction is to-80mm, through transportation rubber belt 18 × 18mm vibratory sieve, ores lifting under vibratory sieve is to a point fine ore bin, ore on vibratory sieve carries out fragmentation by tape transport to fine crusher, then screens with 18*18mm vibratory sieve, circulates successively.
B) ore grinding, joins the ore in fine ore bin in ore mill and carries out ore grinding, and the abrasive particle size after ore grinding is 0.1 ~ 1mm.
C) configure the molten slurry of ore, the ore after fine grinding is added water and sizes mixing, regulate PH to 9 ~ 12.
D) administration stirring, in the molten slurry of ore, add inhibitor, collecting agent, activator and foaming agent, stirring driven by motor blade stirs, and mixing speed is 3000 ~ 5000r/min.
E) flotation of lead, plumbum floatation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes.
F) flotation zinc, zinc flotation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes.
G) dewater, carry out processed get product to the lead of flotation and zinc, described processed adopts and concentratedly adds filtration two stage dewatering technology.
H) tailings process, adopts ceramic filter to carry out processed to tailings.
Embodiment:
The production technology of a kind of plumbous zinc flotation breeze of the present invention in the course of the work, first fragmentation is carried out to ore, refine and be mixed with solution, inhibitor, collecting agent, activator and foaming agent is added in solution, inhibitor composition is 0.2 ~ 0.6 part, zinc sulfate, 5 ~ 10 parts, lime, 0.01 ~ 0.1 part, vulcanized sodium and sodium sulfite 0.2 ~ 0.3 part, collecting agent composition is butyl ammonium aerofloat 0.05 ~ 0.1 part, 30 No. six black powder 0.03 ~ 0.06 part and butyl xanthate 0.03 ~ 015 part, 0.15 ~ 0.35 part, activator component copper sulphate, foamer ingredient No. two oil 0.1 ~ 0.2 part; And uniform stirring is carried out fully to it, then it is carried out to the plumbum floatation of 10 minutes, zinc flotation in 10 minutes is carried out to the solution after plumbum floatation, afterwards to lead, the zinc finished product dehydration dress bag of flotation, finally processed is carried out to tailings.
The present invention, by being one or more in zinc sulfate, lime, vulcanized sodium and sodium sulfite by inhibitor, making the clear water of zinc ore strengthen, and then inhibits the floating of zinc ore, solve the problem that zinc in lead concentrate is of high grade, improve zinc recovery; Meanwhile, floating agent used in the present invention consumes little, cost-saving; Whole production technology environmental protection; Production technology flotation effect of the present invention is good, nontoxic, without time-bounded and raw material sources extensive, can carry out wide popularization and application.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (5)
1. a production technology for plumbous zinc flotation breeze, comprises the following steps successively:
A) muck, by ores lifting to boulder crusher, ore reduction is to-80mm, through transportation rubber belt 18 × 18mm vibratory sieve, ores lifting under vibratory sieve is to a point fine ore bin, ore on vibratory sieve carries out fragmentation by tape transport to fine crusher, then screens with 18*18mm vibratory sieve, circulates successively;
B) ore grinding, joins the ore in fine ore bin in ore mill and carries out ore grinding, and the abrasive particle size after ore grinding is 0.1 ~ 1mm;
C) configure the molten slurry of ore, the ore after fine grinding is added water and sizes mixing, regulate PH to 9 ~ 12;
D) administration stirring, in the molten slurry of ore, add inhibitor, collecting agent, activator and foaming agent, stirring driven by motor blade stirs, and mixing speed is 3000 ~ 5000r/min;
E) flotation of lead, plumbum floatation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes;
F) flotation zinc, zinc flotation sweeps Process configuration, sorting step by step successively according to thick three essences three, and flotation time is 9 ~ 12 minutes;
G) dewater, carry out processed get product to the lead of flotation and zinc, described processed adopts and concentratedly adds filtration two stage dewatering technology;
H) tailings process, adopts ceramic filter to carry out processed to tailings.
2. the production technology of a kind of plumbous zinc flotation breeze as claimed in claim 1, it is characterized in that: described inhibitor is one or more in zinc sulfate, lime, vulcanized sodium and sodium sulfite, the mass ratio of inhibitor combination is
.
3. the production technology of a kind of plumbous zinc flotation breeze as claimed in claim 1, is characterized in that: described collecting agent is black powder and xanthate.
4. the production technology of a kind of plumbous zinc flotation breeze stated as claim 3, is characterized in that: the preferred butyl ammonium aerofloat of described black powder and 30 No. six black powder, the preferred butyl xanthate of xanthate.
5. the production technology of a kind of plumbous zinc flotation breeze as claimed in claim 1, is characterized in that: described activator preferably sulfuric acid copper, and foaming agent is one or more in No. two flotation oils and RB series, and foaming agent is No. two oil preferably.
Priority Applications (1)
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|---|---|---|---|
| CN201510839401.0A CN105289851A (en) | 2015-11-27 | 2015-11-27 | Production technology for lead and zinc floatation mineral powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839401.0A CN105289851A (en) | 2015-11-27 | 2015-11-27 | Production technology for lead and zinc floatation mineral powder |
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| CN105289851A true CN105289851A (en) | 2016-02-03 |
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| CN201510839401.0A Pending CN105289851A (en) | 2015-11-27 | 2015-11-27 | Production technology for lead and zinc floatation mineral powder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138285A (en) * | 2017-05-23 | 2017-09-08 | 西北矿冶研究院 | Lead sulfide and zinc ore flotation combined collecting agent and using method thereof |
| CN108296026A (en) * | 2017-12-28 | 2018-07-20 | 三明学院 | A kind of low zinc high type difficulty of lead selects the method for floating of Pb-Zn deposits |
| CN108405191A (en) * | 2018-02-11 | 2018-08-17 | 广西华洋矿源材料有限公司 | A kind of choosing method of lead-zinc sulfide ore |
| CN109926196A (en) * | 2019-04-23 | 2019-06-25 | 广西华锡集团股份有限公司车河选矿厂 | Cyanide-free separation process for low-grade tin-lead-zinc multi-metal sulfide mineral lead-zinc |
| CN114669368A (en) * | 2022-03-10 | 2022-06-28 | 通道侗族自治县长界矿业有限公司 | High-efficiency mineral separation process |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138285A (en) * | 2017-05-23 | 2017-09-08 | 西北矿冶研究院 | Lead sulfide and zinc ore flotation combined collecting agent and using method thereof |
| CN108296026A (en) * | 2017-12-28 | 2018-07-20 | 三明学院 | A kind of low zinc high type difficulty of lead selects the method for floating of Pb-Zn deposits |
| CN108296026B (en) * | 2017-12-28 | 2020-04-10 | 三明学院 | Flotation method for lead-low-zinc high-type refractory lead-zinc ore |
| CN108405191A (en) * | 2018-02-11 | 2018-08-17 | 广西华洋矿源材料有限公司 | A kind of choosing method of lead-zinc sulfide ore |
| CN109926196A (en) * | 2019-04-23 | 2019-06-25 | 广西华锡集团股份有限公司车河选矿厂 | Cyanide-free separation process for low-grade tin-lead-zinc multi-metal sulfide mineral lead-zinc |
| CN109926196B (en) * | 2019-04-23 | 2021-06-25 | 广西华锡集团股份有限公司车河选矿厂 | Cyanide-free separation process for low-grade tin-lead-zinc multi-metal sulfide mineral lead-zinc |
| CN114669368A (en) * | 2022-03-10 | 2022-06-28 | 通道侗族自治县长界矿业有限公司 | High-efficiency mineral separation process |
| CN114669368B (en) * | 2022-03-10 | 2024-05-10 | 湖南万仕智金属科技有限公司 | Efficient mineral separation process |
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Application publication date: 20160203 |