CN107088470B - A kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process - Google Patents
A kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process Download PDFInfo
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- CN107088470B CN107088470B CN201710458377.5A CN201710458377A CN107088470B CN 107088470 B CN107088470 B CN 107088470B CN 201710458377 A CN201710458377 A CN 201710458377A CN 107088470 B CN107088470 B CN 107088470B
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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Abstract
The present invention relates to a kind of composite ore point mills, sorting, strong magnetic-suspension roasting-weak magnetic separation process, include the following steps: the raw ore for being crushed iron ore composite ore through one section of closed circuit grinding system, scalping overflow product is fed into one section of weak magnetic and one section of intensity magnetic separator, the bulk concentrate of two stages of magnetic separation feeds secondary grading closed circuit grinding system, secondary grading overflow product is sorted using one section of dehydration slot, two sections of weak magnetic separators and one section of magnetic vibration ore separators, obtains magnetic concentrate；One section of weakly magnetic tailings feeds two sections strong magnetomechanical and sorts, two sections of high intensity magnetic minerals merge with two sections of weak magnetic tail mines, one section of magnetic vibration ore separators tailing feeds classifying cyclone and tower grinding machine closed circuit grinding system, product after tower mill is fed after one section of centrifuge sorts, suspension roasting operation is fed again, product after roasting obtains calcining magnetic separation concentrate after three sections of weak magnetic machines sort, and it is 66.5%~67.5% final concentrate that magnetic concentrate, which is grade with calcining magnetic separation concentrate,.This invention simplifies flowage structures, considerably reduce beneficiation cost.
Description
Technical field
The invention belongs to technical field of beneficiation more particularly to a kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetics
Select technique.
Background technique
Composite ore is the ore of magnetic iron ore and bloodstone composite feed, general using " stage grinding, tower mill-weak magnetic-are strong
Magnetic-reverse flotation " process flow sorts.Raw ore after the closed circuit grinding that primary grinding, scalping are formed, overflow by scalping
Stream granularity reaches -200 mesh contents 55~60%, sorts through one section of weak magnetic separator, and weakly magnetic tailings feed one section of intensity magnetic separator and sort,
Jettisoning part coarse grain qualified tailings；One section of inferior fine magnetite concentrate and one section of high intensity magnetic mineral form one section of mixed magnetic concentrate and feed secondary grading rotation
The secondary closed circuit grinding of device and tower grinding machine composition is flowed, secondary grading overflow granularity reaches -325 mesh contents 90%~95%, secondary
Grading Overflow product feeds two sections of weak magnetics, two sections strong magnetomechanical sorts, two sections of strong magnetomechanical jettisoning part particulate qualified tailings；Two sections weak
Magnetic concentrate and two sections of high intensity magnetic minerals form two sections of mixed magnetic concentrate and feed anion reverse floatation operation, by one section of roughing, one section of essence
Choosing, three sections scan operation, the flotation concentrate of acquisition is final concentrate, grade 66%~66.5%；It is one section strong magnetic tail mine, two sections strong
Magnetic tail mine and reverse flotation tailing are combined into most tailing, grade 12.5%~14%.As shown in Figure 1.
Composite ore is using in " stage grinding, the strong magnetic-reverse flotation of tower mill-weak magnetic-" technique Beneficiation flowsheet, and raw ore is through one section
It after ore grinding, is sorted using one section of weak magnetic machine, obtains one section of inferior fine magnetite concentrate, this part is magnetic mine；One section of weakly magnetic tailings passes through one
After the strong magnetomechanical of section sorts, one section of high intensity magnetic mineral of acquisition, one section of high intensity magnetic mineral is bloodstone, (one section of magnetic iron ore in original technique
Inferior fine magnetite concentrate) and bloodstone (one section of high intensity magnetic mineral) be combined into one section of mixed magnetic concentrate, all fed " tower mill-reverse flotation after tower mill
Operation " increases flotation operation mine-supplying quantity, and a large amount of floating agents are consumed while increasing floatation equipment, increases cost, if
Magnetic mine is selected in advance, independent regrinding and reconcentration is carried out to magnetic mine and bloodstone, can be recyclable under the conditions of roughly grinding granularity
Magnetic mine can be such that beneficiation cost is greatly reduced.
Summary of the invention
It is of the invention to be to provide a kind of pair of magnetic iron ore and bloodstone individually sorts, reduce the mixing of beneficiation cost
Mine point mill, sorting, strong magnetic-roasting-magnetic separation process.
The invention is realized in this way.A kind of composite ore of the invention point mill, sorting, strong magnetic-suspension roasting-low intensity magnetic separation work
Skill, it is characterised in that include the following steps:
1) composite ore raw ore of the granularity in 12mm~0mm is crushed to close through one section of ball mill with what cyclone classification formed
Road grinding system obtains -200 mesh contents 50%~60% in scalping overflow product；
2) scalping overflow product is fed one section of weak magnetic machine to sort, sorts out one section of inferior fine magnetite concentrate and one section weak
Magnetic tail mine；
3) one section of inferior fine magnetite concentrate feeds the secondary closed circuit grinding operation that secondary grading machine and secondary ball milling are constituted, secondary grading
Overflow granularity reaches -200 mesh contents 88%~90%, using one section of dehydration slot, two sections of weak magnetic separators and one section of magnetic vibration ore dressing
Machine is sorted, and the magnetic concentrate that grade is 66.5%~67.5% is obtained；
3) one section of weakly magnetic tailings feeds one section strong magnetomechanical and sorts, and it is selected that one section of high intensity magnetic mineral feeds two sections strong magnetomechanical, and two sections
Strong magnetomechanical concentrate merges with two sections of weak magnetic tail mines, one section of magnetic vibration ore separators tailing feeds " classifying cyclone and tower grinding machine " formation
Closed circuit grinding system, Grading Overflow granularity reaches -325 mesh 90%~95%, and the product after tower is ground feeds one section of centrifuge
It sorts；
4) one section of centrifuge is sorted into concentrate and carries out suspension roasting, so that bloodstone is reduced to magnetic iron ore, after suspension roasting
Product feed three sections of weak magnetic machines and sorted, obtain the calcining magnetic separation concentrate that grade is 66%~66.5%, the grade
The calcining magnetic separation concentrate for being 66%~66.5% for 66.5%~67.5% magnetic concentrate and grade merges into final concentrate, grade
66.5%~67.5%；One section strong magnetic tail mine, two sections strong magnetic tail mine, one section of dehydration slot tailing, one section of centrifuge tailing and three sections
Weakly magnetic tailings are combined into true tailings, grade 9%~10%.
The magnetic vibration efficient ore separators of ore separators, that is, magnetovibration, the equipment have magnetic-assemblying area, Shan Zhenqu, sort area when ore pulp enters,
When by magnetic-assemblying area, magnetic mine forms the magnetic linkage to move about vertically downward under the influence of a magnetic field, and non magnetic mine is then in ascending current
Under the action of as tailing overflow, when the magnetic linkage moved down pass through the area Shan Zhen when again smashed again, entrained with it is non magnetic
Mineral are overflowed with ascending current, and mineral are sufficiently separated gangue and iron mineral, with magnetic separator phase by multiple poly- magnetic, sudden strain of a muscle vibration
Than high grade iron concentrate and low-grade tailings can be obtained.
The invention has the advantages that
The present invention is by composite ore using " a kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process " process
Sort, be by composite ore magnetic mine and bloodstone sort respectively, make magnetic iron ore in suitable granularity using single magnetic separation
Method obtains qualified concentrate containing, avoids making iron mineral generation overground after tower is ground.Bloodstone uses strong magnetic-tower mill-centrifugation simultaneously
Machine-roasting -- magnetic separation process sorts, and reduces roasting operation mine-supplying quantity, eliminates reverse flotation work, simplifies flowage structure, greatly
Amplitude reduction beneficiation cost, remarkable in economical benefits.
Detailed description of the invention
Fig. 1 is former composite ore " stage grinding, tower mill-strong magnetic-reverse floatation process flow chart.
Fig. 2 is composite ore of the present invention point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process flow chart.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Fig. 2, a kind of composite ore of the invention point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process, feature
It is to include the following steps:
1) composite ore raw ore of the granularity in 12mm~0mm is crushed to close through one section of ball mill with what cyclone classification formed
Road grinding system obtains -200 mesh contents 50%~60% in scalping overflow product；
2) scalping overflow product is fed one section of weak magnetic machine to sort, sorts out one section of inferior fine magnetite concentrate and one section weak
Magnetic tail mine；
3) one section of inferior fine magnetite concentrate feeds the secondary closed circuit grinding operation that secondary grading machine and secondary ball milling are constituted, secondary grading
Overflow granularity reaches -200 mesh contents 88%~90%, using one section of dehydration slot, two sections of weak magnetic separators and one section of magnetic vibration ore dressing
Machine is sorted, and acquisition grade is 66.5%~67.5% magnetic concentrate；
3) one section of weakly magnetic tailings feeds one section strong magnetomechanical and sorts, and it is selected that one section of high intensity magnetic mineral feeds two sections of intensity magnetic separators, and two
Section high intensity magnetic mineral merges with two sections of weak magnetic tail mines, one section of magnetic vibration ore separators tailing feeds " classifying cyclone and tower grinding machine " formation
Closed circuit grinding system, Grading Overflow granularity reaches -325 mesh 90%~95%, then the product of -325 mesh 90%~95% is given
Enter one section of centrifuge to be sorted；
4) one section of centrifuge is sorted into concentrate and carries out suspension roasting, so that bloodstone is reduced to magnetic iron ore, after suspension roasting
Product feed three sections of weak magnetic machines and sorted, obtain the calcining magnetic separation concentrate that grade is 66%~66.5%, the grade
The calcining magnetic separation concentrate for being 66%~66.5% for 66.5%~67.5% magnetic concentrate and grade merges into final concentrate, grade
66.5%~67.5%；One section strong magnetic tail mine, two sections strong magnetic tail mine, one section of dehydration slot tailing, one section of centrifuge tailing and three sections
Weakly magnetic tailings are combined into true tailings, grade 9%~10%.
The present invention by composite ore magnetic mine and bloodstone sort respectively, make magnetic iron ore in suitable granularity using single
The method of magnetic separation obtains qualified concentrate containing, avoids generating after tower is ground overground；Bloodstone uses strong magnetic-roasting -- magnetic separation work simultaneously
Skill sorts, and reduces roasting operation mine-supplying quantity, eliminates reverse flotation work, simplify flowage structure, considerably reduces ore dressing
Cost.
Claims (1)
1. a kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process, it is characterised in that include the following steps:
1) composite ore is crushed to granularity in closed circuit mill of the raw ore through one section of ball mill and cyclone classification composition of 12mm~0mm
Mine system obtains -200 mesh contents 50%~60% in scalping overflow product；
2) scalping overflow product is fed one section of weak magnetic machine to sort, sorts out one section of inferior fine magnetite concentrate and one section of weak magnetic tail
Mine；
3) one section of inferior fine magnetite concentrate feeds the secondary closed circuit grinding operation that secondary grading machine and secondary ball milling are constituted, secondary grading overflow
Granularity reaches -200 mesh contents 88%~90%, using one section of dehydration slot, two sections of weak magnetic separators and one section of magnetic shake ore separators into
Row sorts, and acquisition grade is 66.5%~67.5% magnetic concentrate；
3) one section of weakly magnetic tailings feeds one section strong magnetomechanical and sorts, and it is selected that one section of high intensity magnetic mineral feeds two sections of intensity magnetic separators, two sections strong
Magnetic concentrate merges with two sections of weak magnetic tail mines, one section of magnetic vibration ore separators tailing feeds closing for " classifying cyclone and tower grinding machine " formation
Road grinding system, Grading Overflow granularity reaches -325 mesh 90%~95%, then the product of -325 mesh 90%~95% is fed one
Section centrifuge is sorted；
4) one section of centrifuge is sorted into concentrate and carries out suspension roasting, so that bloodstone is reduced to magnetic iron ore, by the production after suspension roasting
Product feed three sections of weak magnetic machines and are sorted, and obtain the calcining magnetic separation concentrate that grade is 66%~66.5%, and the grade is
The calcining magnetic separation concentrate that 66.5%~67.5% magnetic concentrate and grade are 66%~66.5% merges into final concentrate, grade
66.5%~67.5%；One section strong magnetic tail mine, two sections strong magnetic tail mine, one section of dehydration slot tailing, one section of centrifuge tailing and three sections
Weakly magnetic tailings are combined into true tailings, grade 9%~10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710458377.5A CN107088470B (en) | 2017-06-16 | 2017-06-16 | A kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process |
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| CN201710458377.5A CN107088470B (en) | 2017-06-16 | 2017-06-16 | A kind of composite ore point mill, sorting, strong magnetic-suspension roasting-weak magnetic separation process |
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| CN107088470B true CN107088470B (en) | 2019-05-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108405179A (en) * | 2018-03-07 | 2018-08-17 | 鞍钢集团矿业有限公司 | A kind of method of magnetic separation-roasting-magnetic separation process recycling magnetic tailing |
| CN108480035A (en) * | 2018-03-07 | 2018-09-04 | 鞍钢集团矿业有限公司 | A kind of method of pre-selection-roasting-magnetic separation process recycling magnetic tailing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259053A (en) * | 2010-10-30 | 2011-11-30 | 鞍钢集团矿业公司 | Method for recovering iron resources in reverse flotation tailings |
| CN103567058A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Technique for processing high-iron-carbonate mixed ore |
| CN103586146A (en) * | 2013-11-13 | 2014-02-19 | 鞍钢集团矿业公司 | Mineral processing process for processing mixed ore of magnetic iron ore and hematite-limonite ore |
| RU2521380C1 (en) * | 2013-02-05 | 2014-06-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Complex processing of martite-hydrohematite ore |
| CN105233976A (en) * | 2015-11-05 | 2016-01-13 | 鞍钢集团矿业公司 | Tailing recovery process adopting preconcentration-roasting-regrinding and magnetic separation method |
| CN105289838A (en) * | 2015-11-05 | 2016-02-03 | 鞍钢集团矿业公司 | Technology for recycling tailings through the process of weak magnetism concentration, roasting and regrinding magnetic separation |
-
2017
- 2017-06-16 CN CN201710458377.5A patent/CN107088470B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259053A (en) * | 2010-10-30 | 2011-11-30 | 鞍钢集团矿业公司 | Method for recovering iron resources in reverse flotation tailings |
| RU2521380C1 (en) * | 2013-02-05 | 2014-06-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Complex processing of martite-hydrohematite ore |
| CN103567058A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Technique for processing high-iron-carbonate mixed ore |
| CN103586146A (en) * | 2013-11-13 | 2014-02-19 | 鞍钢集团矿业公司 | Mineral processing process for processing mixed ore of magnetic iron ore and hematite-limonite ore |
| CN105233976A (en) * | 2015-11-05 | 2016-01-13 | 鞍钢集团矿业公司 | Tailing recovery process adopting preconcentration-roasting-regrinding and magnetic separation method |
| CN105289838A (en) * | 2015-11-05 | 2016-02-03 | 鞍钢集团矿业公司 | Technology for recycling tailings through the process of weak magnetism concentration, roasting and regrinding magnetic separation |
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