CN104258981A - Franklinite screening process - Google Patents
Franklinite screening process Download PDFInfo
- Publication number
- CN104258981A CN104258981A CN201410467589.6A CN201410467589A CN104258981A CN 104258981 A CN104258981 A CN 104258981A CN 201410467589 A CN201410467589 A CN 201410467589A CN 104258981 A CN104258981 A CN 104258981A
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- zinc
- concentrate
- iron
- flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention belongs to the mixed ore screening technology field and especially relates to a franklinite screening process, and the process comprises a zinc ore concentrate screening process and an iron ore concentrate screening process, screening sequences of two useful minerals are that the zinc ore concentrate is firstly screened and the iron ore concentrate is magnetically screened. Through the screening process, the qualified zinc ore concentrate and the qualified iron ore concentrate are effectively recycled, the useful mineral is high in recycling ratio, energy is saved and the production cost is reduced.
Description
Technical field
The invention belongs to composite ore technical field of beneficiation, particularly a kind of franklinite sorting process.
Background technology
Contain by the zinc-iron ore enriched in Xinjiang of China Hejing County, valuable mineral is mostly magnetic iron ore and zincblende.The grade that this area enters to grind zinc-iron iron in ore focuses mostly at 35%-37%, and the grade of zinc is at 1.1%-1.2%.Because in this area's zincblende, the disseminated grain size of zinc is too thin, general needs dissociate to-400 orders more than 85% can sort out qualified zinc concentrate, power consume is higher, so the ore dressing plant of this area's process zinc-iron ore only selects iron not select zinc mostly, causes the waste of zinc resource.So we are necessary that exploitation one can obtain qualified zinc concentrate and iron ore concentrate, the valuable mineral rate of recovery is higher, saves energy consumption, reduces the franklinite sorting process of production cost.
Summary of the invention
The object of this invention is to provide invention one and can obtain qualified zinc concentrate and iron ore concentrate, the valuable mineral rate of recovery is higher, saves energy consumption, reduces the franklinite sorting process of production cost.
The object of the invention is to be realized by following technical proposals:
A kind of franklinite sorting process of the present invention, is characterized in that: comprise zinc concentrate sorting process and iron ore concentrate sorting process, sorting sequentially for first to select zinc concentrate with flotation of two kinds of valuable minerals, and iron ore concentrate is selected in rear magnetic separation, and concrete steps are as follows:
A, be 35%-37% by Iron grade, zinc grade is 1.15%-1.2%, and it is closed circuit that granularity is that the franklinite raw ore of 0-12mm feeds one section of ball milling-cyclone I, and overflow granularity controls at-200 order 55%-60%;
The closed circuit overflow product of b, one section of ball milling-cyclone I feeds the operation of zinc rough floatation, it is closed circuit that the concentrate of zinc rough floatation operation feeds zinc ball milling-cyclone II, the overflow granularity of cyclone II is that the product of-400 orders 85% feeds the operation of zinc cleaner flotation, and the mine tailing of zinc rough floatation operation feeds zinc coarse scan flotation operation;
C, the operation of zinc cleaner flotation are made up of continuous four sections of zinc cleaner flotations, the mine tailing of next section of zinc cleaner flotation returns the preceding paragraph zinc cleaner flotation, the concentrate of the 4th section of zinc cleaner flotation operation is final zinc concentrate, grade reaches more than 45%, zinc recovery more than 85%, the mine tailing of first paragraph zinc cleaner flotation feeds zinc essence and sweeps flotation operation;
The concentrate of concentrate and zinc coarse scan flotation operation that d, zinc essence sweeps flotation operation together turns back to the operation of zinc rough floatation;
The mine tailing of e, zinc coarse scan flotation operation feeds the thick magnetic concentration working of iron, it is closed circuit that the concentrate of the thick magnetic concentration working of iron feeds iron ball mill-cyclone III, the closed circuit product of-200 order content 80% feeds iron essence magnetic concentration working, the concentrate obtained is final iron ore concentrate, described iron concentrate grade is more than 65%, and the rate of recovery is more than 85%.
It is true tailings that the smart magnetic concentration working iron tailings of the mine tailing of the thick magnetic concentration working of described iron, iron and zinc essence sweep flotation operation mine tailing.
The collecting agent butyl xanthate added in described zinc rough floatation operation, dry mining amount per ton is 80g, and foaming agent is 2# oil, dry mining amount per ton is 30g, zinc activator copper sulphate, and dry mining amount per ton is 300g, quartz suppresses for agent calcium oxide, and dry mining amount per ton is 800g.
Described zinc rough floatation operation, in can obtaining, zinc rough floatation concentrate yield is 4%-5%, and zinc recovery is 93%-95%, and zinc grade is 25%-27%.
Zinc rough floatation operation described in employing, can obtain zinc rough floatation operation concentrate, zinc grade is 25%-27%, and productive rate is 4%-5%, and zinc recovery is 93%-95%.
Zinc activator copper sulphate is added, dry mining amount 50g per ton, quartzy inhibitor calcium oxide dry mining amount 200g per ton in described zinc cleaner flotation operation.
Zinc cleaner flotation operation described in employing, can obtain the concentrate of zinc cleaner flotation operation, zinc grade reaches more than 45%, zinc recovery more than 85%.
Collecting agent butyl xanthate is added, dry mining amount 10g, foaming agent 2# oil per ton dry mining amount 5g per ton in described zinc coarse scan flotation operation.
Zinc coarse scan flotation operation described in employing, can obtain zinc and sweep flotation operation concentrate, and zinc grade is 5.7%, and zinc recovery is 3%.
Advantage of the present invention is:
1) technique franklinite of the present invention feeds the operation of zinc rough floatation after primary grinding, the basis ensureing zinc high-recovery greatly reduces the closed circuit mine-supplying quantity of zinc ball milling-cyclone, reduces energy consumption, saved production cost;
2) due to zinc flotation operation of the present invention adopt one section of zinc rough floatation, one section of zinc coarse scan flotation, four sections of zinc cleaner flotations and one section of zinc essence sweeps flotation, the grade obtaining final zinc concentrate product is more than 45%, zinc recovery reaches more than 85%, and the acquisition of high-quality high-recovery zinc concentrate adds the economic benefit in ore dressing plant greatly;
3) zinc coarse scan flotation tailing is fed iron magnetic separation process by the present invention, makes iron concentrate grade reach more than 65%, and the rate of recovery is more than 85%, and the rate of recovery of iron is high; Add the economic benefit selecting factory.
Adopt sorting process of the present invention, effectively reclaimed qualified zinc concentrate and iron ore concentrate, the valuable mineral rate of recovery is higher, saves energy consumption, reduces production cost.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of franklinite sorting process of the present invention, is characterized in that: comprise zinc concentrate sorting process and iron ore concentrate sorting process, sorting sequentially as first to select zinc concentrate with flotation of two kinds of valuable minerals, select iron ore concentrate with magnetic separation afterwards, concrete steps are as follows:
A, be 35%-37% by Iron grade, zinc grade is 1.15%-1.2%, and it is closed circuit that granularity is that the franklinite raw ore of 0-12mm feeds one section of ball milling-cyclone I, and overflow granularity controls at-200 order 55%-60%;
The closed circuit overflow product of b, one section of ball milling-cyclone I feeds the operation of zinc rough floatation, the collecting agent butyl xanthate added in described zinc rough floatation operation, dry mining amount 80g, foaming agent 2# oil per ton, dry mining amount 30g per ton, zinc activator copper sulphate, dry mining amount 300g quartz inhibitor calcium oxide per ton, dry mining amount 800g per ton, obtaining zinc rough floatation concentrate yield is 4%-5%, zinc recovery is 93%-95%, and zinc grade is 25%-27%.
The concentrate of zinc rough floatation operation is fed zinc ball milling-cyclone II closed circuit, the overflow granularity of cyclone II is that the product of-400 orders 85% feeds the operation of zinc cleaner flotation, the mine tailing of zinc rough floatation operation feeds zinc coarse scan flotation operation, for the operation of zinc cleaner flotation creates favorable conditions;
The overflow product of cyclone II feeds the operation of zinc cleaner flotation, the zinc grade 0.19% of zinc rough floatation operation, and the mine tailing of zinc recovery 10%-12% feeds zinc coarse scan flotation operation; Sweep in flotation operation at described zinc and add collecting agent butyl xanthate, dry mining amount 10g, foaming agent 2# oil per ton dry mining amount 5g per ton, obtain zinc and sweep flotation operation concentrate, zinc grade is 5.7%, and zinc recovery is 3%.
The operation of zinc rough floatation, the basis ensureing zinc high-recovery greatly reduces the closed circuit mine-supplying quantity of zinc ball milling-cyclone, reduces energy consumption, saved production cost.
C, the operation of zinc cleaner flotation are made up of continuous four sections of zinc cleaner flotations, and the mine tailing of next section of zinc cleaner flotation returns the preceding paragraph zinc cleaner flotation, and the concentrate of the 4th section of zinc cleaner flotation operation is final zinc concentrate,
Zinc activator copper sulphate is added, dry mining amount 50g per ton, quartzy inhibitor calcium oxide dry mining amount 200g per ton in the operation of every section of zinc cleaner flotation; Obtain the concentrate of zinc cleaner flotation operation through continuous four sections of zinc cleaner flotation operations, zinc grade reaches more than 45%, zinc recovery more than 85%.
High-quality high-recovery zinc concentrate, adds the economic benefit in ore dressing plant greatly.
The mine tailing of first paragraph zinc cleaner flotation feeds zinc essence and sweeps flotation operation;
D, zinc grade are 8%, zinc recovery be 2% zinc essence sweep the concentrate of flotation operation and zinc grade is 5.7%, zinc recovery is that the concentrate of the zinc coarse scan flotation operation of 3% together turns back to the operation of zinc rough floatation;
The mine tailing of e, zinc coarse scan flotation operation feeds the thick magnetic concentration working of iron, Iron grade is 60%, it is closed circuit that iron recovery is that the concentrate of the thick magnetic concentration working of iron of 86%-87% feeds iron ball mill-cyclone III, the closed circuit product of-200 order content 80% feeds iron essence magnetic concentration working, the concentrate obtained is final iron ore concentrate, described iron concentrate grade is more than 65%, and the rate of recovery is more than 85%;
It is true tailings that the smart magnetic concentration working mine tailing of the mine tailing of the thick magnetic concentration working of described iron, iron and zinc essence sweep flotation operation mine tailing.
Claims (7)
1. a franklinite sorting process, is characterized in that: comprise zinc concentrate and sort system and iron ore concentrate sorts system, two kinds of valuable minerals sort order for first to select zinc concentrate with flotation, iron ore concentrate is selected in rear magnetic separation, and concrete steps are as follows:
A, be 35%-37% by Iron grade, zinc grade is 1.15%-1.2%, and it is closed circuit that granularity is that the franklinite raw ore of 0-12mm feeds one section of ball milling-cyclone I, and overflow granularity controls at-200 order 55%-60%;
The closed circuit overflow product of b, one section of ball milling-cyclone I feeds the operation of zinc rough floatation, it is closed circuit that the concentrate of zinc rough floatation operation feeds zinc ball milling-cyclone II, the overflow granularity of cyclone II is that the product of-400 orders 85% feeds the operation of zinc cleaner flotation, and the mine tailing of zinc rough floatation operation feeds zinc coarse scan flotation operation;
C, the operation of zinc cleaner flotation are made up of continuous four sections of zinc cleaner flotations, the mine tailing of next section of zinc cleaner flotation returns the preceding paragraph zinc cleaner flotation, the concentrate of the 4th section of zinc cleaner flotation operation is final zinc concentrate, grade reaches more than 45%, zinc recovery more than 85%, the mine tailing of first paragraph zinc cleaner flotation feeds zinc essence and sweeps flotation operation;
The concentrate of concentrate and zinc coarse scan flotation operation that d, zinc essence sweeps flotation operation together turns back to the operation of zinc rough floatation;
The mine tailing of e, zinc coarse scan flotation operation feeds the thick magnetic concentration working of iron, it is closed circuit that the concentrate of the thick magnetic concentration working of iron feeds iron ball mill-cyclone III, the closed circuit product of-200 order content 80% feeds iron essence magnetic concentration working, the concentrate obtained is final iron ore concentrate, described iron concentrate grade is more than 65%, and the rate of recovery is more than 85%;
It is true tailings that the smart magnetic concentration working iron tailings of the mine tailing of the thick magnetic concentration working of described iron, iron and zinc essence sweep flotation operation mine tailing.
2. franklinite sorting process according to claim 1, it is characterized in that the collecting agent butyl xanthate added in described zinc rough floatation operation, dry mining amount per ton is 80g, foaming agent 2# oil, dry mining amount per ton is 30g, zinc activator copper sulphate, dry mining amount per ton is 300g quartz inhibitor is calcium oxide, and dry mining amount per ton is 800g.
3. franklinite sorting process according to claim 1 and 2, it is characterized in that the zinc rough floatation operation described in adopting, can obtain zinc rough floatation operation concentrate, zinc grade is 25%-27%, and productive rate is 4%-5%, and zinc recovery is 93%-95%.
4. franklinite sorting process according to claim 1, is characterized in that adding zinc activator copper sulphate in described zinc cleaner flotation operation, and dry mining amount per ton is 50g, and quartzy inhibitor calcium oxide dry mining amount per ton is 200g.
5. the franklinite sorting process according to claim 1 or 4, it is characterized in that the zinc cleaner flotation operation described in adopting, can obtain the concentrate of zinc cleaner flotation operation, zinc grade reaches more than 45%, zinc recovery more than 85%.
6. franklinite sorting process according to claim 1, is characterized in that sweeping in flotation operation at described zinc adding collecting agent butyl xanthate, and dry mining amount per ton is 10g, and foaming agent 2# oil dry mining amount per ton is 5g.
7. the franklinite sorting process according to claim 1 or 6, it is characterized in that the zinc described in adopting sweeps flotation operation, can obtain zinc and sweep flotation operation concentrate, zinc grade is 5.7%, and zinc recovery is 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467589.6A CN104258981B (en) | 2014-09-15 | 2014-09-15 | A kind of franklinite sorting process |
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| CN201410467589.6A CN104258981B (en) | 2014-09-15 | 2014-09-15 | A kind of franklinite sorting process |
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| CN104258981A true CN104258981A (en) | 2015-01-07 |
| CN104258981B CN104258981B (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106423537A (en) * | 2016-09-30 | 2017-02-22 | 青海省地质矿产测试应用中心 | Ore dressing process for iron polymetallic ore |
| CN111632748A (en) * | 2020-04-28 | 2020-09-08 | 西北矿冶研究院 | Mineral separation method for improving zinc concentrate grade by using magnetic-floating combined process |
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| CN102747228A (en) * | 2012-07-18 | 2012-10-24 | 云南昆欧科技有限责任公司 | Method for recycling valuable elements from blast furnace gas mud |
| CN103008112A (en) * | 2012-11-30 | 2013-04-03 | 广西高峰矿业有限责任公司 | Selective milling-flotation method for cassiterite multi-metal sulfide ore |
| CN103212478A (en) * | 2013-03-05 | 2013-07-24 | 安徽金日盛矿业有限责任公司 | Floating magnetic combined ore dressing process for recovering mica from iron ore mill tailings |
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2014
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1990013679A1 (en) * | 1989-05-03 | 1990-11-15 | University Of Waterloo | A novel process for the treatment of zinc sulphide containing ores and/or concentrates |
| RU2074031C1 (en) * | 1992-05-08 | 1997-02-27 | Производственное объединение "Целинный горно-химический комбинат" | Method for processing of pyrite-containing tailings of wet magnetic separation of sulfide-black iron ores |
| CN1714941A (en) * | 2005-07-07 | 2006-01-04 | 东北大学 | Ore dressing method for paigeite |
| CN1820853A (en) * | 2006-02-09 | 2006-08-23 | 陈铁 | Beneficiation method for zinc oxide mine |
| CN101602030A (en) * | 2009-06-21 | 2009-12-16 | 何任义 | Floatation process of complex lead zinc ores |
| CN101934246A (en) * | 2010-08-18 | 2011-01-05 | 长沙矿冶研究院 | Beneficiation method for lead-zinc oxide ore difficult to beneficiate |
| CN102319617A (en) * | 2011-08-15 | 2012-01-18 | 鞍钢集团矿业公司 | Process for recovering iron and carbon elements from blast furnace gas ash |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106423537A (en) * | 2016-09-30 | 2017-02-22 | 青海省地质矿产测试应用中心 | Ore dressing process for iron polymetallic ore |
| CN111632748A (en) * | 2020-04-28 | 2020-09-08 | 西北矿冶研究院 | Mineral separation method for improving zinc concentrate grade by using magnetic-floating combined process |
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| CN104258981B (en) | 2016-08-24 |
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