CN108970802A - A kind of floating combined mineral dressing technology of the stage grinding-magnetic-weight-sorting hematite - Google Patents
A kind of floating combined mineral dressing technology of the stage grinding-magnetic-weight-sorting hematite Download PDFInfo
- Publication number
- CN108970802A CN108970802A CN201811098697.5A CN201811098697A CN108970802A CN 108970802 A CN108970802 A CN 108970802A CN 201811098697 A CN201811098697 A CN 201811098697A CN 108970802 A CN108970802 A CN 108970802A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- sections
- section
- strong magnetic
- weak
- 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.)
- Granted
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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Magnetic Treatment Devices (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of stage grinding-magnetic-weights-for handling hematite to float combined mineral dressing technology, one section of closed circuit grinding is fed including the iron ore by bloodstone distributive law higher than 40%, obtain -200 mesh contents and account for one point of 65%~70% and overflow, it is characterised in that: further include handle the strong magnetic of one point of excessive one section weak magnetic, processing one mixes thickness grading, the gravity treatment for handling thickness grading sand setting, the secondary closed circuit grinding for handling gravity tailings, the strong magnetic of two sections of weak magnetics of processing secondary grading overflow and thickness grading overflow and the processing two of essence and mixes the reverse flotations of essence；Floating essence merges into the synthesis concentrate of 67% or more grade with weight essence, and floating tail and the last one mine, the last two tail merge into the synthesis tailing of grade 8%~12%.The invention has the advantages that 1) enhance strong magnetic discarding coarse tailing weak to one point of excessive one section；2) middling cycle is eliminated, influence of the original ore property fluctuation to chats back amount has been eradicated, ensure that production stable operation.
Description
Technical field
The invention belongs to technical field of mineral processing, and in particular to a kind of stage grinding-magnetic-weight-for sorting hematite
Floating process integration.Discarding coarse tailing-coarse and fine separation-the magnetic for sorting hematite floats combined mineral dressing technology again.
Background technique
Dressing plant of the processing at present based on lean hematite mostly uses " stage grinding, coarse and fine separation-weight, magnetic, floating combined stream
Journey " is sorted, i.e., the closed circuit grinding system that raw ore feeds an ore grinding after crushing and scalping is constituted, primary overflow produces
Product granularity is -200 mesh contents 55%~60%, and primary overflow product is after thickness grading cyclone, the coarse grain product of thickness grading
It is sorted through two sections of spiral chutes, obtains gravity concentrate, spiral chute tailing is swept middle magnetic and throws tail, returned after the middling ore regrinding of acquisition
Thickness grading cyclone, regrinding product granularity is -200 mesh contents 75%~80%；The fine particle product of thickness grading feeds weak magnetic machine,
Weak magnetic tail feeds strong magnetomechanical and is sorted, and the mixed magnetic that weak magnetic essence and strong magnetic essence are constituted is wonderful to be sorted with reverse floatation process, obtains
The flotation concentrate and gravity concentrate obtained constitutes comprehensive concentrate, and flotation tailing and strong magnetic tail mine sweep the middle comprehensive tailing of magnetic tail mine composition.
Existing greatest problem is when original ore property fluctuation, for the grade for ensuring comprehensive concentrate and comprehensive tailing to the technique in the application
And increase chats amount, after causing middling ore regrinding, regrind that product granularity is thicker, and chats amount further increases after middling recurrence, shape
At vicious circle.It is some to reach 200% of design or more when selecting factory's chats amount maximum, considerably increase the production cost for selecting factory.
Summary of the invention
The object of the present invention is to provide a kind of reinforcing discarding coarse tailing, cancels middling cycle, steady production operation and save life
Stage grinding-magnetic-the weight-for producing the processing hematite of cost floats combined mineral dressing technology.
The present invention is implemented as follows:
A kind of stage grinding-magnetic-weight-of processing hematite of the invention floats combined mineral dressing technology, including will be with bloodstone
Main, iron ore of the bloodstone distributive law higher than 40% feeds one section of closed circuit grinding operation, obtains scalping overflow product, special
Sign be to further include following operations: the strong magnetic operation of one section of weak magnetic, thickness grading operation, reselection operation, two sections of closed circuit grinding operations,
The strong magnetic operation of two sections of weak magnetics and reverse flotation work；The strong magnetic operation of one section of weak magnetic handles scalping overflow product, described
Thickness grading operation handle the strong magnetic bulk concentrate of one section of weak magnetic, the coarse grain of the described reselection operation processing thickness grading operation produces
Product, two sections of closed circuit grinding operations handle gravity tailings, and the strong magnetic operation of two sections of weak magnetics handles thickness grading operation
Fine particle product and two sections of closed circuit grinding operations secondary grading overflow product, it is strong that the reverse flotation work handles two sections of weak magnetics
Magnetic bulk concentrate.
The scalping overflow product is that -200 mesh contents account for 65%~70%；
The strong magnetic operation of one section of weak magnetic include one section of weak magnetic and one section of strong magnetic, scalping overflow product feed one section it is weak
Magnetic, one section of weakly magnetic tailings feed one section of strong magnetic, and the one section strong magnetic tail mine that yield is 25%~35% throws tail, one section of inferior fine magnetite concentrate and one
Section high intensity magnetic mineral merges into the strong magnetic bulk concentrate of one section of weak magnetic；
The thickness grading operation uses cyclone group, and the strong magnetic bulk concentrate of one section of weak magnetic feeds cyclone group, obtains thickness
The coarse grain product of graded operation and the fine particle product of thickness grading operation；
The reselection operation includes roughing spiral chute and selected spiral chute, and the coarse grain product of thickness grading operation is fed slightly
Spiral chute is selected to sort, roughing spiral chute concentrate feeds selected spiral chute, and selected spiral chute concentrate is gravity concentrate, essence
Spiral chute chats self-loopa is selected, it is 30%~50% that selected spiral chute tailing and roughing spiral chute tailing, which merge into yield,
Gravity tailings；
Two sections of closed circuit grinding operations are the closed circuit grinding of secondary grading and secondary grinding composition, and gravity tailings feeds secondary
Closed circuit grinding, obtaining granularity is the secondary grading overflow product that -200 mesh contents are 85%~95%；
The strong magnetic operation of two sections of weak magnetics includes two sections of weak magnetics and two sections of strong magnetic, and secondary grading overflow product and thickness grading are made
The fine particle product of industry feeds two sections of weak magnetics, and two sections of weakly magnetic tailings feed two sections of strong magnetic, and two sections strong magnetic tail mine throws tail, two sections of weak magnetic essences
Mine and two sections of high intensity magnetic minerals merge into the strong magnetic bulk concentrate of two sections of weak magnetics；
The reverse flotation work is the closed circuit reverse flotation flowsheet that a thick essence three is swept, and the strong magnetic bulk concentrate of two sections of weak magnetics is fed instead
Flotation operation is sorted, and flotation concentrate and flotation tailing are obtained, and flotation concentrate and gravity concentrate merge into comprehensive concentrate, comprehensive
67% or more concentrate grade, flotation tailing and one section strong magnetic tail mine, two sections strong magnetic tail mine merge into comprehensive tailing, comprehensive tailing product
Position 8%~12%.
The invention has the advantages that
1) present invention is provided with the strong magnetic operation of one section of weak magnetic after one section of closed circuit grinding operation, rather than thickness grading is arranged and makees
Industry enhances the strong magnetic discarding coarse tailing of one section of weak magnetic to scalping overflow product；Throwing tail yield is 25%~35%, is reduced subsequent
The treating capacity of ore grinding sorting operation saves production cost；
2) present invention using gravity tailings as chats pass through two sections of closed circuit grindings, acquisition secondary grading overflow product, eliminate by
Its middling cycle for returning to thickness grading operation, but fed together with the merging of the fine particle product of thickness grading operation subsequent
The strong magnetic operation of two sections of weak magnetics has eradicated influence of the original ore property fluctuation to chats back amount, ensure that production stable operation.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, a kind of stage grinding-magnetic-weight-of processing hematite of the invention floats combined mineral dressing technology, packet
Include will based on bloodstone, bloodstone distributive law 41.58%, grade 29.14% iron ore feed one section of closed circuit grinding operation, obtain
Obtain the scalping overflow product that granularity is -200 mesh contents 66.5%, it is characterised in that further include following operations:
1) the strong magnetic operation of one section of weak magnetic: the strong magnetic operation of one section of weak magnetic is made of one section of weak magnetic and one section strong magnetic, scalping overflow
Product feeds one section of weak magnetic, and one section of weakly magnetic tailings feeds one section of strong magnetic, one section of strong magnetic that grade 6.43%, yield are 31.20%
Tailing throws tail, and one section of inferior fine magnetite concentrate and one section of high intensity magnetic mineral merge into the strong magnetic bulk concentrate of one section of weak magnetic；
2) thickness grading operation: thickness grading operation uses cyclone group, and the strong magnetic bulk concentrate of one section of weak magnetic feeds cyclone group,
Obtain the coarse grain product of thickness grading operation and the fine particle product of thickness grading operation；
3) reselection operation: reselection operation is made of roughing spiral chute and selected spiral chute, and the coarse grain of thickness grading operation produces
Product feed roughing spiral chute and sort, and roughing spiral chute concentrate feeds selected spiral chute, and selected spiral chute concentrate is attached most importance to
Concentrate selection, gravity concentrate grade 67.03%, selected spiral chute chats self-loopa, selected spiral chute tailing and roughing spiral are slipped
Slot tailing merges into the gravity tailings that yield is 41.94%, and gravity tailings is as chats；
4) two sections of closed circuit grinding operations: the closed circuit grinding that two sections of closed circuit grinding operations are made of secondary grading and secondary grinding,
Reselection operation tailing feeds two sections of closed circuit grindings as chats, and obtaining granularity is the secondary grading overflow that -200 mesh contents account for 90%
Product；
5) the strong magnetic operation of two sections of weak magnetics: the strong magnetic operation of two sections of weak magnetics includes two sections of weak magnetics and two sections of strong magnetic, and secondary grading overflow produces
Product and the merging of the fine particle product of thickness grading operation feed two sections of weak magnetics, and two sections of weakly magnetic tailings feed two sections of strong magnetic, and grade is
The strong magnetic tail mine of two sections of 7.25% throws tail, and two sections of inferior fine magnetite concentrates and two sections of high intensity magnetic minerals merge into the strong magnetic bulk concentrate of two sections of weak magnetics；
6) reverse flotation work: reverse flotation work is the closed circuit reverse flotation flowsheet that a thick essence three is swept, the strong magnetic mixing essence of two sections of weak magnetics
Mine feeds reverse flotation work and is sorted, and obtains flotation concentrate and flotation tailing, Floatation Concentrate Grade 68.04%, flotation concentrate with
Gravity concentrate merges into comprehensive concentrate, comprehensive concentrate grade 67.72%, flotation tailing and one section strong magnetic tail mine, two sections strong magnetic tail mine
Merge into comprehensive tailing, comprehensive tailings grade 9.79%.
Claims (8)
1. a kind of stage grinding-magnetic-weight-for handling hematite floats combined mineral dressing technology, including will be based on bloodstone, red iron
Iron ore of the mine distributive law higher than 40% feeds one section of closed circuit grinding operation, obtains scalping overflow product, it is characterised in that also
Including following operations: the strong magnetic operation of one section of weak magnetic, thickness grading operation, reselection operation, two sections of closed circuit grinding operations, two sections of weak magnetics
Strong magnetic operation and reverse flotation work；The strong magnetic operation of one section of weak magnetic handles scalping overflow product, the thickness point
Grade operation handles the strong magnetic bulk concentrate of one section of weak magnetic, and the coarse grain product of the reselection operation processing thickness grading operation is described
Two sections of closed circuit grinding operations handle gravity tailings, the particulate of two sections of weak magnetics strong magnetic operation processing thickness grading operation produces
The secondary grading overflow product of product and two sections of closed circuit grinding operations, the reverse flotation work handle the strong magnetic mixing essence of two sections of weak magnetics
Mine.
2. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that the scalping overflow product is that -200 mesh contents account for 65%~70%.
3. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that the strong magnetic operation of one section of weak magnetic includes one section of weak magnetic and one section of strong magnetic, scalping overflow product feed one section it is weak
Magnetic, one section of weakly magnetic tailings feed one section of strong magnetic, and the one section strong magnetic tail mine that yield is 25%~35% throws tail, one section of inferior fine magnetite concentrate and one
Section high intensity magnetic mineral merges into the strong magnetic bulk concentrate of one section of weak magnetic.
4. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is the thickness grading operation using cyclone group, and the strong magnetic bulk concentrate of one section of weak magnetic feeds cyclone group, obtains thick
The coarse grain product of subfractionation operation and the fine particle product of thickness grading operation.
5. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that the reselection operation includes roughing spiral chute and selected spiral chute, and the coarse grain product of thickness grading operation is fed
Roughing spiral chute sorts, and roughing spiral chute concentrate feeds selected spiral chute, and selected spiral chute concentrate is gravity concentrate,
It is 30%~50% that selected spiral chute chats self-loopa, selected spiral chute tailing and roughing spiral chute tailing, which merge into yield,
Gravity tailings.
6. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that two sections of closed circuit grinding operations are the closed circuit grinding of secondary grading and secondary grinding composition, and gravity tailings feeds two
Secondary closed circuit grinding, obtaining granularity is the secondary grading overflow product that -200 mesh contents are 90%.
7. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that the strong magnetic operation of two sections of weak magnetics includes two sections of weak magnetics and two sections of strong magnetic, secondary grading overflow product and thickness grading
The fine particle product of operation feeds two sections of weak magnetics, and two sections of weakly magnetic tailings feed two sections of strong magnetic, and two sections strong magnetic tail mine throws tail, two sections of weak magnetics
Concentrate and two sections of high intensity magnetic minerals merge into the strong magnetic bulk concentrate of two sections of weak magnetics.
8. a kind of stage grinding-magnetic-weight-for handling hematite according to claim 1 floats combined mineral dressing technology, special
Sign is that the reverse flotation work is the closed circuit reverse flotation flowsheet that a thick essence three is swept, and the strong magnetic bulk concentrate of two sections of weak magnetics is fed
Reverse flotation work is sorted, and obtains flotation concentrate and flotation tailing, flotation concentrate and gravity concentrate merge into comprehensive concentrate, comprehensive
67% or more concentrate grade is closed, flotation tailing and one section strong magnetic tail mine, two sections strong magnetic tail mine merge into comprehensive tailing, comprehensive tailing
Grade 8%~12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098697.5A CN108970802B (en) | 2018-09-20 | 2018-09-20 | Stage grinding-magnetic-gravity-floating combined mineral separation process for separating hematite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811098697.5A CN108970802B (en) | 2018-09-20 | 2018-09-20 | Stage grinding-magnetic-gravity-floating combined mineral separation process for separating hematite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108970802A true CN108970802A (en) | 2018-12-11 |
| CN108970802B CN108970802B (en) | 2020-07-28 |
Family
ID=64544861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811098697.5A Active CN108970802B (en) | 2018-09-20 | 2018-09-20 | Stage grinding-magnetic-gravity-floating combined mineral separation process for separating hematite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108970802B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675712A (en) * | 2019-01-08 | 2019-04-26 | 中冶北方（大连）工程技术有限公司 | A kind of processing high-sulfur is red-ore-dressing technique of magnetic compound iron ore |
| CN110898958A (en) * | 2019-11-13 | 2020-03-24 | 鞍钢集团矿业有限公司 | Mineral processing technology for treating high-iron carbonate lean magnetic hematite mixed iron ore |
| CN112588430A (en) * | 2020-12-08 | 2021-04-02 | 鞍钢集团矿业有限公司 | Short-flow efficient separation process for carbonate-containing iron ore |
| CN112588431A (en) * | 2020-12-08 | 2021-04-02 | 鞍钢集团矿业有限公司 | Ore grinding-weak magnetic strong magnetic-gravity separation-reverse flotation process for magnetic hematite |
| CN115430517A (en) * | 2022-08-26 | 2022-12-06 | 鞍钢集团矿业有限公司 | Anshan type maghemite sectional grinding, heavy-magnetic process flow |
| CN115921093A (en) * | 2022-12-20 | 2023-04-07 | 鞍钢集团矿业有限公司 | Separate grinding-magnetic levitation combined separation process for maghemite |
| CN115921128A (en) * | 2023-01-05 | 2023-04-07 | 鞍钢集团矿业有限公司 | Ore grinding-weak magnetic strong magnetic-coarse grain gravity separation regrinding and fine grain reverse flotation process |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2296623C2 (en) * | 2000-04-10 | 2007-04-10 | Федеральное государственное унитарное научно-исследовательское геологическое предприятие "Тульское НИГП" (ТулНИГП) | Hematite concentrate production process |
| RU2383392C2 (en) * | 2008-02-11 | 2010-03-10 | Научно-Производственная Фирма "Продэкология" | Method for enrichment of hematite ores |
| CN101716551A (en) * | 2009-11-19 | 2010-06-02 | 长沙矿冶研究院 | Mineral separation method for specularite |
| CN102019227A (en) * | 2009-09-18 | 2011-04-20 | 鞍钢集团矿业公司 | Lean hematite stage grinding and high intensity magnetism, gravity separation, negative ion reverse flotation technique |
| CN102259059A (en) * | 2010-11-05 | 2011-11-30 | 鞍钢集团矿业公司 | Method for recycling iron concentrates from tailings in stage grinding, thickness sorting and gravity-magnetism-floatation procedures |
| CN102274789A (en) * | 2011-08-09 | 2011-12-14 | 鞍钢集团矿业公司 | Recleaning method of fine-grain embedded hematite flotation tailings |
| CN102824956A (en) * | 2012-09-21 | 2012-12-19 | 鞍钢集团矿业公司 | Poor hematite grading level and narrow level sorting process |
| CN103567051A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Small-scale lean hematite separation technology |
| CN103611623A (en) * | 2013-11-13 | 2014-03-05 | 鞍钢集团矿业公司 | Process method for hematite dressing to increase gravity concentrate yield |
| CN106423533A (en) * | 2016-10-14 | 2017-02-22 | 鞍钢集团矿业有限公司 | Poor hematite high-pressure roller grinding, roughness and fineness classification and reselection-magnetic separation-reverse flotation technology |
-
2018
- 2018-09-20 CN CN201811098697.5A patent/CN108970802B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2296623C2 (en) * | 2000-04-10 | 2007-04-10 | Федеральное государственное унитарное научно-исследовательское геологическое предприятие "Тульское НИГП" (ТулНИГП) | Hematite concentrate production process |
| RU2383392C2 (en) * | 2008-02-11 | 2010-03-10 | Научно-Производственная Фирма "Продэкология" | Method for enrichment of hematite ores |
| CN102019227A (en) * | 2009-09-18 | 2011-04-20 | 鞍钢集团矿业公司 | Lean hematite stage grinding and high intensity magnetism, gravity separation, negative ion reverse flotation technique |
| CN101716551A (en) * | 2009-11-19 | 2010-06-02 | 长沙矿冶研究院 | Mineral separation method for specularite |
| CN102259059A (en) * | 2010-11-05 | 2011-11-30 | 鞍钢集团矿业公司 | Method for recycling iron concentrates from tailings in stage grinding, thickness sorting and gravity-magnetism-floatation procedures |
| CN102274789A (en) * | 2011-08-09 | 2011-12-14 | 鞍钢集团矿业公司 | Recleaning method of fine-grain embedded hematite flotation tailings |
| CN102824956A (en) * | 2012-09-21 | 2012-12-19 | 鞍钢集团矿业公司 | Poor hematite grading level and narrow level sorting process |
| CN103567051A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Small-scale lean hematite separation technology |
| CN103611623A (en) * | 2013-11-13 | 2014-03-05 | 鞍钢集团矿业公司 | Process method for hematite dressing to increase gravity concentrate yield |
| CN106423533A (en) * | 2016-10-14 | 2017-02-22 | 鞍钢集团矿业有限公司 | Poor hematite high-pressure roller grinding, roughness and fineness classification and reselection-magnetic separation-reverse flotation technology |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675712A (en) * | 2019-01-08 | 2019-04-26 | 中冶北方（大连）工程技术有限公司 | A kind of processing high-sulfur is red-ore-dressing technique of magnetic compound iron ore |
| CN110898958A (en) * | 2019-11-13 | 2020-03-24 | 鞍钢集团矿业有限公司 | Mineral processing technology for treating high-iron carbonate lean magnetic hematite mixed iron ore |
| CN110898958B (en) * | 2019-11-13 | 2021-07-13 | 鞍钢集团矿业有限公司 | Mineral processing technology for treating high-iron carbonate lean magnetic hematite mixed iron ore |
| CN112588430A (en) * | 2020-12-08 | 2021-04-02 | 鞍钢集团矿业有限公司 | Short-flow efficient separation process for carbonate-containing iron ore |
| CN112588431A (en) * | 2020-12-08 | 2021-04-02 | 鞍钢集团矿业有限公司 | Ore grinding-weak magnetic strong magnetic-gravity separation-reverse flotation process for magnetic hematite |
| CN115430517A (en) * | 2022-08-26 | 2022-12-06 | 鞍钢集团矿业有限公司 | Anshan type maghemite sectional grinding, heavy-magnetic process flow |
| CN115921093A (en) * | 2022-12-20 | 2023-04-07 | 鞍钢集团矿业有限公司 | Separate grinding-magnetic levitation combined separation process for maghemite |
| CN115921128A (en) * | 2023-01-05 | 2023-04-07 | 鞍钢集团矿业有限公司 | Ore grinding-weak magnetic strong magnetic-coarse grain gravity separation regrinding and fine grain reverse flotation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108970802B (en) | 2020-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108970802A (en) | A kind of floating combined mineral dressing technology of the stage grinding-magnetic-weight-sorting hematite | |
| CN104874462B (en) | The pre-selection of fine grain teeth cloth composite ore coarse grain, magnetic-floating sorting process | |
| CN101927209B (en) | Benefication technology of extra poor hematite | |
| CN104174482B (en) | A kind of lean hematite ore-dressing technique | |
| CN104888960B (en) | The magnetic of the red composite ore of fine grain teeth cloth magnetic floats sorting process | |
| CN103586146B (en) | Mineral processing process for processing mixed ore of magnetic iron ore and hematite-limonite ore | |
| CN104923386B (en) | The pre-selection of fine grain teeth cloth composite ore coarse grain, magnetic-weight sorting process | |
| CN101468330B (en) | Technique for processing mixed type iron ore | |
| CN102019227B (en) | Stage grinding and high intensity magnetism, gravity separation, negative ion reverse flotation technique for lean hematite | |
| CN104888947B (en) | The magnetic separation of fine grain teeth cloth magnetic-red composite ore-centrifuge sorting process | |
| CN103567051B (en) | Small-scale lean hematite separation technology | |
| CN109351467A (en) | A kind of sorting process based on the iron mineral disseminated grain size processing red mixed ore of magnetic | |
| CN103272694A (en) | Magnetic-gravity separation technology for Anshan type lean magnetite | |
| CN103611623A (en) | Process method for hematite dressing to increase gravity concentrate yield | |
| CN109201322A (en) | A kind of sorting process of the hematite containing ferric carbonate | |
| CN106269204A (en) | A kind of energy saving technique processing extreme poverty bloodstone wet type pre-selecting rough concentrate | |
| CN107096638A (en) | A kind of iron ore composite ore point mill, sorting, magnetic-gravity separation technique | |
| CN107159445A (en) | A kind of iron ore composite ore point mill, sorting, magnetic-ore flotation technique | |
| CN108970803A (en) | A kind of floating process integration of the magnetic-weight-sorting the hematite containing ferric carbonate | |
| CN109127112A (en) | A kind of ore-dressing technique handling high-grade or low grade hematite four kinds of products of production | |
| CN108816497A (en) | Magnetite beneficiation process | |
| CN106423534A (en) | Poor hematite high pressure roller milling, thickness grading and reselection-magnetic separation-centrifugal machine sorting process | |
| CN102671755A (en) | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite | |
| CN106492977A (en) | The strong magnetic reverse floatation process of lean hematite high pressure roller mill, weak magnetic | |
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |