CN107029869A - A kind of double media of magnetic iron ore, tower mill magnetic shake ore separators sorting process - Google Patents
A kind of double media of magnetic iron ore, tower mill magnetic shake ore separators sorting process Download PDFInfo
- Publication number
- CN107029869A CN107029869A CN201710457125.0A CN201710457125A CN107029869A CN 107029869 A CN107029869 A CN 107029869A CN 201710457125 A CN201710457125 A CN 201710457125A CN 107029869 A CN107029869 A CN 107029869A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- section
- ore
- sections
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Abstract
Shaken ore separators sorting process the present invention relates to a kind of double media of magnetic iron ore, tower mill magnetic, it is characterised in that comprise the following steps：Raw ore through it is thick broken, in break that two sections broken and screening after, product granularity reaches 25mm contents more than 90%, then feeds that " high nip roll mill-air classification system obtains the product that granularity is 200 mesh 60%~65%；One section of weak magnetic machine is fed again to be sorted, weak magnetic concentrate selection is fed tower grinding machine and the secondary grinding system of cyclone classification formation by one section, the overflow product of its 325 mesh more than 90% feeds that two sections of weak magnetic machines, one section of magnetic shake ore separators and two sections of magnetic shake ore separators, obtains the concentrate that grade is 67%~67.5%.The present invention reduces thin broken operation and two stage grinding operation, dusting cover operation is eliminated, flowage structure is simplified, realizes that double media, short route are sorted, considerably reduces beneficiation cost.
Description
Technical field
The invention belongs to technical field of beneficiation, more particularly to a kind of double media of magnetic iron ore, tower mill-magnetic ore separators that shakes sort work
Skill.
Background technology
Magnetic iron ore is generally sorted using " three sections crush, stage grinding, spun yarn evenness-single magnetic separation " technological process.It is i.e. poor
300~0mm of magnetic iron ore, after coarse broken, the broken, thin broken is sieved, forms the production that granularity reaches -12mm contents more than 90%
Product, the product is after primary grinding, (primary grinding and scalping formation closed circuit grinding), and scalping overflow granularity reaches
To -200 mesh contents 55%~60%, sorted by one section of weak magnetic machine, jettisoning coarse grain qualified tailings, one section of inferior fine magnetite concentrate feeds two
Secondary classification and secondary ball milling formation closed circuit grinding, secondary grading overflow granularity is reached after -200 mesh contents 88~90%, feeds one
Section dehydration groove, two sections of weak magnetic machines are sorted, and jettisoning particulate qualified tailings, two sections of weak magnetic machine concentrate feed one section of dusting cover operation, dusting cover
Undersize is qualified concentrate containing, and dusting cover oversize feeds after dehydration magnetic separator concentrating, feeds three sections of ball mills and regrind, after regrinding
Product granularity reach -200 mesh 90~92%, the product after regrinding is fed into two sections of dehydrations groove, three stage magnetic separators sorts, jettisoning
The gangue of monomer dissociation is reached after regrinding, three sections of inferior fine magnetite concentrates feed two sections of dusting cover operations, and two sections of dusting cover undersizes are qualified
Concentrate, two sections of dusting cover oversizes, which return to regrind, to be regrinded.One section of dusting cover undersize and two sections of dusting cover undersizes are combined into most
Whole concentrate, grade 66.5%~67%, yield 35%~39%；One stages of magnetic separation mine tailing, one section of dehydration groove mine tailing, two stages of magnetic separation tails
Ore deposit, dehydration magnetic separator mine tailing, two sections of dehydration groove mine tailings, three stages of magnetic separation mine tailings are combined into true tailings, grade 11.5%~12%, production
Rate 65%~61%, referring to Fig. 1.
After raw ore is sieved through coarse broken, the broken, thin broken, granularity reaches more than -12mm90%, using " stage grinding, dusting cover is again
Mill-single magnetic separation " technological process is sorted, using three sections of broken, three sections of grinding operations in flow, there is many, the flow that sorts hop count
Longer, beneficiation cost is high, the drawbacks of complex process.
The content of the invention
The present invention's is to provide that a kind of flow is short, and the machine ore dressing of shaking of the double media of the low magnetic iron ore of cost, tower mill-magnetic sorts work
Skill.
What the present invention was realized in.
A kind of double media of magnetic iron ore, the tower mill-magnetic of the present invention shakes machine ore dressing sorting process, it is characterised in that including following step
Suddenly：
1) original ore size 300-0mm, through it is thick broken, in break that two sections broken and screening after, product granularity reaches -25mm contents
More than 90%,
2) granularity reaches that the product of -25mm contents more than 90% feeds " high nip roll mill-air classification system, acquisition granularity
For the product of -200 mesh 60%~65%；
3) granularity is fed into one section of weak magnetic machine for the product of -200 mesh 60%~65% to be sorted, sorts out one section of weak magnetic
Concentrate and one section of weakly magnetic tailings；
4) weak magnetic concentrate selection is fed the secondary grinding system that " tower grinding machine and cyclone classification " is formed by one section, obtains granularity
Reach the overflow product of -325 mesh more than 90%；
5) granularity is reached that the overflow product of -325 mesh more than 90% feeds two sections of weak magnetic machines, the concentrate of two sections of weak magnetic machines is given
Enter one section of magnetic ore separators that shakes to be sorted, one section of magnetic ore separators concentrate that shakes feeds two sections of magnetic and shaken ore separators, and it is 67% to obtain grade
~67.5%, the qualified concentrate containing of yield 30%~38%, one section of weakly magnetic tailings, two sections of weakly magnetic tailingses and one section of magnetic shake ore dressing tail
Ore deposit is combined into true tailings, and grade 10.5% is~12%, and yield is 70%-62%.
Note：Magnetic shakes the efficient ore separators of ore separators i.e. magnetovibration, and the equipment has magnetic-assemblying area, Shan Zhen areas, is sorted when ore pulp enters
Area, during by magnetic-assemblying area, magnetic ore deposit forms magnetic linkage travelling vertically downward under the influence of a magnetic field, and non magnetic ore deposit is then in ascending water
Overflow, smashed again again when the magnetic linkage moved down passes through Shan Zhen areas, the non-magnetic of entrained with as mine tailing in the presence of stream
Property mineral overflowed with ascending current, mineral by multiple poly- magnetic, dodge and shake, be sufficiently separated gangue and iron mineral, with magnetic separator
Compare, can obtain high grade iron concentrate and low-grade tailings.
It is an advantage of the invention that：Compared with original flow, The present invention reduces thin broken operation and two stage grinding operation, cancel
Dusting cover operation, simplifies flowage structure, realizes air classification, i.e. wind medium, cyclone classification, i.e. aqueous medium, double media,
Short route is sorted, and is that the product of -25mm contents more than 90% is fed into " high pressure roller mill-air classification " system, using " tower mill -
Efficient magnetic separation process ", breaks operation, two stage grinding operation and dusting cover operation in eliminating, it is same obtain grade be 67%~
67.5% qualified concentrate containing, considerably reduces beneficiation cost, remarkable in economical benefits.
Brief description of the drawings
Fig. 1 crushes for former three sections, stage grinding, spun yarn evenness-single magnetic separation " technological process.
Fig. 2 is that a kind of double media of magnetic iron ore of the invention, tower mill-magnetic shake ore separators selecting process figure.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The ore separators sorting process as shown in Fig. 2 a kind of double media of magnetic iron ore of the present invention, tower mill-magnetic shake, it is characterised in that
Comprise the following steps：
1) original ore size 300-0mm, through it is thick broken, in break that two sections broken and screening after, product granularity reaches -25mm contents
More than 90%,
2) granularity reaches that the product of -25mm contents more than 90% feeds " high nip roll mill-air classification system, acquisition granularity
For the product of -200 mesh 60%~65%；
3) granularity is fed into one section of weak magnetic machine for the product of -200 mesh 60%~65% to be sorted, sorts out one section of weak magnetic
Concentrate and one section of weakly magnetic tailings；
4) weak magnetic concentrate selection is fed the secondary grinding system that " tower grinding machine and cyclone classification " is formed by one section, obtains granularity
Reach the overflow product of -325 mesh more than 90%；
5) granularity is reached that the overflow product of -325 mesh more than 90% feeds two sections of weak magnetic machines, the concentrate of two sections of weak magnetic machines is given
Enter one section of magnetic ore separators that shakes to be sorted, one section of efficient magnetic ore separators concentrate that shakes feeds two sections of magnetic and shaken ore separators, and obtaining grade is
67%~67.5%, the qualified concentrate containing of yield 30%~38%, one section of weakly magnetic tailings, two sections of weakly magnetic tailingses and one section of magnetic shake tail
Ore deposit is combined into true tailings, and grade 10.5% is~12%, and yield is 70%-62%.
The present invention reduces thin broken operation and two stage grinding operation, dusting cover operation is eliminated, flowage structure is simplified, realized
Air classification, i.e. wind medium, cyclone classification, i.e. aqueous medium, double media, short route are sorted, considerably reduce ore dressing into
This, remarkable in economical benefits.
Claims (1)
- The ore separators sorting process 1. a kind of double media of magnetic iron ore, tower mill-magnetic shake, it is characterised in that comprise the following steps：1) original ore size 300-0mm, through it is thick broken, in break that two sections broken and screening after, product granularity reach -25mm contents 90% with On,2) granularity reach the product of -25mm contents more than 90% feed " high nip roll mill-air classification system, obtain granularity for - The product of 200 mesh 60%~65%；3) granularity is fed into one section of weak magnetic machine for the product of -200 mesh 60%~65% to be sorted, sorts out one section of inferior fine magnetite concentrate With one section of weakly magnetic tailings；4) weak magnetic concentrate selection is fed the secondary grinding system that " tower grinding machine and cyclone classification " is formed by one section, is obtained granularity and is reached To the overflow product of -325 mesh more than 90%；5) granularity is reached that the overflow product of -325 mesh more than 90% feeds two sections of weak magnetic machines, the concentrate of two sections of weak magnetic machines feeds one The section magnetic ore separators that shakes is sorted, and one section of magnetic ore separators concentrate that shakes feeds two sections of magnetic and shaken ore separators, obtain grade for 67%~ 67.5%, the qualified concentrate containing of yield 30%~38%, one section of weakly magnetic tailings, two sections of weakly magnetic tailingses and one section of magnetic shake ore separators mine tailing True tailings is combined into, grade 10.5% is~12%, and yield is 70%-62%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457125.0A CN107029869A (en) | 2017-06-16 | 2017-06-16 | A kind of double media of magnetic iron ore, tower mill magnetic shake ore separators sorting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710457125.0A CN107029869A (en) | 2017-06-16 | 2017-06-16 | A kind of double media of magnetic iron ore, tower mill magnetic shake ore separators sorting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107029869A true CN107029869A (en) | 2017-08-11 |
Family
ID=59541963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710457125.0A Pending CN107029869A (en) | 2017-06-16 | 2017-06-16 | A kind of double media of magnetic iron ore, tower mill magnetic shake ore separators sorting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107029869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107661814A (en) * | 2017-10-31 | 2018-02-06 | 中冶北方（大连）工程技术有限公司 | One kind screening magnetic separation mill ore magnetic selection flow sheet equipment arrangement system |
| CN108672082A (en) * | 2018-07-05 | 2018-10-19 | 鞍钢集团矿业有限公司 | Magnetic iron ore high pressure roller mill-wet type pre-selecting-stage grinding-tower grinds magnetic separation process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003112156A (en) * | 2001-10-09 | 2003-04-15 | Matsushita Electric Ind Co Ltd | Method for treating waste household electric appliance to recycle the same as resources |
| JP2007289930A (en) * | 2006-03-27 | 2007-11-08 | Harita Kinzoku Kk | Recovery method and recovery system of valuable substance from crushing residue |
| CN102259051A (en) * | 2010-08-24 | 2011-11-30 | 鞍钢集团矿业公司 | Novel fine poor magnetic iron ore dressing process using centrifuges |
| CN104128259A (en) * | 2014-07-28 | 2014-11-05 | 鞍钢集团矿业公司 | Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore |
| WO2016127235A1 (en) * | 2015-02-13 | 2016-08-18 | New Steel Soluções Sustentaveis S.A. | System and process for dry recovery of iron oxide fines from iron-bearing compacted and semi-compacted rocks |
| CN105944833A (en) * | 2016-05-27 | 2016-09-21 | 鞍钢集团矿业公司 | Process for stage grinding-tower milling-magnetic vibrating machine separating lean magnetite ores |
| CN106492977A (en) * | 2016-10-14 | 2017-03-15 | 鞍钢集团矿业有限公司 | The strong magnetic reverse floatation process of lean hematite high pressure roller mill, weak magnetic |
-
2017
- 2017-06-16 CN CN201710457125.0A patent/CN107029869A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003112156A (en) * | 2001-10-09 | 2003-04-15 | Matsushita Electric Ind Co Ltd | Method for treating waste household electric appliance to recycle the same as resources |
| JP2007289930A (en) * | 2006-03-27 | 2007-11-08 | Harita Kinzoku Kk | Recovery method and recovery system of valuable substance from crushing residue |
| CN102259051A (en) * | 2010-08-24 | 2011-11-30 | 鞍钢集团矿业公司 | Novel fine poor magnetic iron ore dressing process using centrifuges |
| CN104128259A (en) * | 2014-07-28 | 2014-11-05 | 鞍钢集团矿业公司 | Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore |
| WO2016127235A1 (en) * | 2015-02-13 | 2016-08-18 | New Steel Soluções Sustentaveis S.A. | System and process for dry recovery of iron oxide fines from iron-bearing compacted and semi-compacted rocks |
| CN105944833A (en) * | 2016-05-27 | 2016-09-21 | 鞍钢集团矿业公司 | Process for stage grinding-tower milling-magnetic vibrating machine separating lean magnetite ores |
| CN106492977A (en) * | 2016-10-14 | 2017-03-15 | 鞍钢集团矿业有限公司 | The strong magnetic reverse floatation process of lean hematite high pressure roller mill, weak magnetic |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107661814A (en) * | 2017-10-31 | 2018-02-06 | 中冶北方（大连）工程技术有限公司 | One kind screening magnetic separation mill ore magnetic selection flow sheet equipment arrangement system |
| CN107661814B (en) * | 2017-10-31 | 2023-08-22 | 中冶北方（大连）工程技术有限公司 | Screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system |
| CN108672082A (en) * | 2018-07-05 | 2018-10-19 | 鞍钢集团矿业有限公司 | Magnetic iron ore high pressure roller mill-wet type pre-selecting-stage grinding-tower grinds magnetic separation process |
| CN108672082B (en) * | 2018-07-05 | 2020-11-13 | 鞍钢集团矿业有限公司 | Magnetite high-pressure roller grinding-wet preselection-stage grinding-tower grinding magnetic separation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104874462B (en) | The pre-selection of fine grain teeth cloth composite ore coarse grain, magnetic-floating sorting process | |
| CN106000598B (en) | Chromium depleted zone high pressure roller mill-dry type pre-selection-Fine screening-regrinding technology | |
| CN104607296B (en) | Ilmenite beneficiation method and equipment | |
| CN105855019B (en) | Ultrafine crushing-grading magnetic separation method for magnetite | |
| CN103272694B (en) | Magnetic-gravity separation technology for Anshan type lean magnetite | |
| CN106513163A (en) | High-pressure rolling and magnetic-gravity separation process for lean hematite | |
| CN108672081A (en) | Magnetic iron ore high pressure roller mill wet type pre-selecting-stage grinding-dusting cover tower grinds magnetic separation process | |
| CN204564293U (en) | A kind of ilmenite preparation equipment | |
| CN101468330A (en) | Technique for processing mixed type iron ore | |
| CN107159445A (en) | A kind of iron ore composite ore point mill, sorting, magnetic-ore flotation technique | |
| CN103447144A (en) | Method for raising iron content and reducing silicon in concentrate by means of low-intensity magnetic separation process | |
| CN107096638A (en) | A kind of iron ore composite ore point mill, sorting, magnetic-gravity separation technique | |
| CN103406197B (en) | The technique of iron ore concentrate is sorted from chromium depleted zone mine tailing | |
| CN105855020B (en) | A kind of high pressure roller mill dry type preselects chromium depleted zone technique | |
| CN108672082A (en) | Magnetic iron ore high pressure roller mill-wet type pre-selecting-stage grinding-tower grinds magnetic separation process | |
| CN106824508A (en) | A kind of broken mill ore magnetic selection technique of magnetic iron ore | |
| CN106423534A (en) | Poor hematite high pressure roller milling, thickness grading and reselection-magnetic separation-centrifugal machine sorting process | |
| CN107029871A (en) | A kind of beneficiation method of magnetic composite ore | |
| CN108993756A (en) | Semi-Autogenous pre-selection-the stage grinding of magnetic iron ore-tower grinds magnetic separation process | |
| CN107252723A (en) | Composite ore high pressure roller mill wet type pre-selecting, suspension roasting magnetic separation process | |
| CN106492977A (en) | The strong magnetic reverse floatation process of lean hematite high pressure roller mill, weak magnetic | |
| CN108816497A (en) | Magnetite beneficiation process | |
| CN110624686A (en) | Magnetite beneficiation process capable of fully releasing mill capacity | |
| CN105233977B (en) | Magnetic separation recovery mine tailing technique is regrinded in magnetic separation circulation roasting | |
| CN107252730A (en) | A kind of composite ore high pressure roller mill wind is classified again, tower mill, magnetic weight sorting process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170811 |
|
| RJ01 | Rejection of invention patent application after publication |