CN1778471A - Benefication of magnetite-haematite acid mixed mine - Google Patents
Benefication of magnetite-haematite acid mixed mine Download PDFInfo
- Publication number
- CN1778471A CN1778471A CN 200410079575 CN200410079575A CN1778471A CN 1778471 A CN1778471 A CN 1778471A CN 200410079575 CN200410079575 CN 200410079575 CN 200410079575 A CN200410079575 A CN 200410079575A CN 1778471 A CN1778471 A CN 1778471A
- Authority
- CN
- China
- Prior art keywords
- concentrate
- ore
- pulp
- grade
- mentioned
- 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
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A magnetic separation method for preparing the ore concentrate from the acidic mixture of magnetite and hematitie includes such steps as strong magnetic separating twice, separating by spiral chute for the separated concentrate, and separating by sorting table for the intermediate ore and tailings. Its advantages are high quality of ore concentrate and high recovery rate.
Description
Technical field
The present invention relates to a kind of beneficiation method, relate in particular to the beneficiation method that a kind of difficulty is selected the maghemite thing.
Background technology
In the existing beneficiation method, most widely used, maximum is magnetic separation, gravity treatment and three kinds of methods of flotation.Continuous poorness along with resource, particulate is low-grade and complicated, the gangue band iron ore of difficult choosing is more and more, only adopt existing magnetic separation or gravity treatment or flotation can not effectively sort, reclaim useful iron ore simply, this is totally unfavorable to making full use of of limited resources.Especially for the big Red Hill iron ore in Yuxi, Yunnan Province, this ore deposit is based on magnetic iron ore, and its content is 60%, and bloodstone takes second place, and content is 40%, and the gangue in it is mainly quartz, promptly belongs to magnetic iron ore-hematite-type acid mixed mine.Because the bloodstone in this ore deposit is because of being crystal stock with magnetic iron ore, granularity is thinner, 0.05mm account for more than 60%,-0.02mm accounts for 33.4%, and having part microfine crystalline substance also to be the embedding of dip-dye shape is distributed in the gangue, promptly comparatively tight with combining of gangue, the lean intergrowth of this part particle is under strong magnetic field action behind the ore grinding, can bring more gangue into enters in the concentrate, not only influence concentrate grade, but also can waste valuable iron resource, thereby influence the iron ore rate of recovery because of parts of fine granulated iron ore deposit enters mine tailing with gangue.Therefore, can not singly sort with magnetic separation.If adopt reverse flotation to reclaim bloodstone, then can only remove silicon and silicate, can't remove gangues such as feldspar, mica, still influence the concentrate grade and the rate of recovery.If adopt direct flotation, then, gangue is reclaimed with iron ore because of mineral combine with gangue closely, both influenced the concentrate grade and the rate of recovery, to use strong acid because of flotation again, thereby bring equipment, environment are caused severe contamination, a series of problems such as medicament use cost height.Thereby can not only adopt flotation to sort.Therefore, be necessary, work out a processing route and a scheme that is fit to handle above-mentioned mineral at above-mentioned mineral characteristics.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the method for a kind of Benefication of magnetite-hematite-type acid mixed mine is provided,, make full use of limited iron resource to improve the concentrate grade and the rate of recovery.
The present invention realizes by following technical proposal: the method for a kind of magnetic iron ore-hematite-type acid mixed mine is characterized in that it comprises following process steps:
A, that raw ore is added water mill is thin, makes mog reach-200 orders and accounts for 50～60%, and control pulp density 50～80% is to carry out one section high intensity magnetic separation under the condition of 6000～8000 Austria in magnetic field intensity, abandons mine tailing, grade is 30～35% rough concentrate;
B, above-mentioned rough concentrate is continued levigate, make its fineness reach-200 orders and account for 70～85%, control pulp density 30～40% is to carry out two sections high intensity magnetic separations under the condition of 5000～6000 Austria in magnetic field intensity, selects grade and reaches 40～47% concentrate pulp;
C, with above-mentioned concentrate pulp from flowing in the branch bucket, concentrating and keeping dividing the bucket overflow is clear water, makes the underflow pulp density keep 20～30%;
D, above-mentioned ore pulp is delivered to the spiral chute distributor box, with 30～35m
3The flow of/h platform is sent the ore pulp in the distributor box into spiral chute and is carried out gravity treatment, keeps pulp density 20～30%, selects grade respectively and be 60～62% concentrate, chats and mine tailing;
E, above-mentioned gained concentrate is concentrated, filters, make the concentrate moisture after the filtration be controlled at 7～10%, concentrate;
F, step D gained chats and mine tailing are sent into the shaking table distributor box, with 15～25m
3The flow of/h platform is sent into shaking table and is carried out gravity treatment once more, and control feed ore concentration 20～30% selects to such an extent that grade is that 63～65% concentrate merges in the step e, through concentrate, filter concentrate, mine tailing flows automatically to tailing pit.
The invention solves following difficult point: the characteristics that sort mineral according to the present invention, be that bloodstone and magnetic iron ore are crystal stock, granularity is thinner, and having part microfine crystalline substance also to be the embedding of dip-dye shape is distributed in the gangue, if only sort with magnetic separation, the concentrate grade of not only selecting is low, and bloodstone wherein will run off with mine tailing, thereby cause the waste of precious resources and the loss of economic benefit, therefore, must earlier select magnetic iron ore, select iron ore in bloodstone and the gangue with reselecting method again, with the simplest with magnetic selection method, optimum ore dressing combination obtains most economical, top quality concentrate product.
The present invention has following advantage and effect: adopt above-mentioned scheme of concentration to select magnetite concentrate earlier, select red iron ore concentrate and the iron ore of embedding cloth in gangue again, not only make concentrate grade after gravity treatment, bring up to 63～65% by 47% of magnetic separation, and make valuable iron ore deposit obtain fully, effectively utilize, also improved economic benefit simultaneously, solved prior art and be difficult to obtain the high-grade magnetite concentrate with magnetic separation, be difficult to improve red iron concentrate grade with reverse flotation, make mine tailing iron content height, the rate of recovery is low, problems such as serious waste of resources.For Benefication of magnetite-hematite-type acid mixed mine found one effective, economical and practical, concentrate grade is high, the rate of recovery is high, the favourable approach of making rational use of resources.
Description of drawings
Fig. 1 is the present invention's technological process and device therefor schematic diagram.
Among the figure, 1 for dewaterer divides bucket, and 2 is the pump pond, and 3 is pump, and 4 is conveyance conduit, and 5 is the ore pulp distributor box, and 6 is spiral chute, and 7 is shaking table, and 8 is that 9 is shaking table ore pulp distributor box to ore deposit classification case.
The specific embodiment
Below in conjunction with embodiment the present invention is described further.
Selected raw ore chemical composition: SiO
218.32%, TFe 50.63%, and S 0.013%, and P 0.061%, K
2O 0.082%, Na
2O 1.095%.
A, that raw ore is added water mill is thin, makes mog reach-200 orders and accounts for 50%, and control pulp density 50% is to carry out one section high intensity magnetic separation under the condition of 6000 Austria in magnetic field intensity, abandons mine tailing, grade is 30% rough concentrate;
B, above-mentioned rough concentrate is continued levigate, make its fineness reach-200 orders and account for 70%, control pulp density 30% is to carry out two sections high intensity magnetic separations under the condition of 5000 Austria in magnetic field intensity, selects grade and reaches 40% concentrate pulp;
C, with above-mentioned concentrate pulp from flowing in the branch bucket 1, concentrating and keeping dividing the bucket overflow is clear water, makes the underflow pulp density keep 20%;
D, above-mentioned ore pulp is delivered to the ore pulp distributor box 5 of spiral chute 6, with 30m
3The flow of/h platform is sent the ore pulps in the distributor box 5 into spiral chute 6 and is carried out gravity treatment, keeps pulp density 20%, selects grade respectively and be 60% concentrate, chats and mine tailing;
E, above-mentioned gained concentrate is concentrated, filters, make the concentrate moisture after the filtration be controlled at 7%, concentrate;
F, step D gained chats and mine tailing are sent into shaking table distributor box 9, with 15m
3The flow of/h platform is sent into shaking table 7 and is carried out gravity treatment once more, and control feed ore concentration 20% selects to such an extent that grade is that 63% concentrate merges in the step e, through concentrate, filter concentrate, mine tailing flows automatically to tailing pit.
Get concentrate grade 63.98%, tailings grade 13%, the rate of recovery 81.03%.
A, that raw ore is added water mill is thin, makes mog reach-200 orders and accounts for 60%, and control pulp density 80% is to carry out one section high intensity magnetic separation under the condition of 8000 Austria in magnetic field intensity, abandons mine tailing, grade is 47% rough concentrate;
B, above-mentioned rough concentrate is continued levigate, make its fineness reach-200 orders and account for 85%, control pulp density 40% is to carry out two sections high intensity magnetic separations under the condition of 6000 Austria in magnetic field intensity, selects grade and reaches 47% concentrate pulp;
C, with above-mentioned concentrate pulp from flowing in the branch bucket 1, concentrating and keeping dividing the bucket overflow is clear water, makes the underflow pulp density keep 30%;
D, above-mentioned ore pulp is delivered to spiral chute distributor box 5, with 35m
3The flow of/h platform is sent 5 ore pulp in the distributor box into spiral chute 6 and is carried out gravity treatment, keeps pulp density 30%, selects grade respectively and be 62% concentrate, chats and mine tailing;
E, above-mentioned gained concentrate is concentrated, filters, make the concentrate moisture after the filtration be controlled at 10%, concentrate;
F, step D gained chats and mine tailing are sent into shaking table distributor box 9, with 25m
3The flow of/h platform is sent into shaking table 7 and is carried out gravity treatment once more, and control feed ore concentration 30% selects to such an extent that grade is that 65% concentrate merges in the step e, through concentrate, filter concentrate, mine tailing flows automatically to tailing pit.
Get concentrate grade 65%, tailings grade 12.80%, the rate of recovery 81.76%.
Claims (1)
1, a kind of method of magnetic iron ore one hematite-type acid mixed mine is characterized in that it comprises following process steps:
A, that raw ore is added water mill is thin, makes mog reach-200 orders and accounts for 50～60%, and control pulp density 50～80% is to carry out one section high intensity magnetic separation under the condition of 6000～8000 Austria in magnetic field intensity, abandons mine tailing, grade is 30～35% rough concentrate;
B, above-mentioned rough concentrate is continued levigate, make its fineness reach-200 orders and account for 70～85%, control pulp density 30～40% is to carry out two sections high intensity magnetic separations under the condition of 5000～6000 Austria in magnetic field intensity, selects grade and reaches 40～47% concentrate pulp;
C, with above-mentioned concentrate pulp from flowing in the branch bucket, concentrating and keeping dividing the bucket overflow is clear water, makes the underflow pulp density keep 20～30%;
D, above-mentioned ore pulp is delivered to the spiral chute distributor box, with 30～35m
3The flow of/h platform is sent the ore pulp in the distributor box into spiral chute and is carried out gravity treatment, keeps pulp density 20～30%, selects grade respectively and be 60～62% concentrate, chats and mine tailing;
E, above-mentioned gained concentrate is concentrated, filters, make the concentrate moisture after the filtration be controlled at 7～10%, concentrate;
F, step D gained chats and mine tailing are sent into the shaking table distributor box, with 15～25m
3The flow of/h platform is sent into shaking table and is carried out gravity treatment once more, and control feed ore concentration 20～30% selects to such an extent that grade is that 63～65% concentrate merges in the step e, through concentrate, filter concentrate, mine tailing flows automatically to tailing pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100795753A CN100444964C (en) | 2004-11-23 | 2004-11-23 | Benefication of magnetite-haematite acid mixed mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100795753A CN100444964C (en) | 2004-11-23 | 2004-11-23 | Benefication of magnetite-haematite acid mixed mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1778471A true CN1778471A (en) | 2006-05-31 |
| CN100444964C CN100444964C (en) | 2008-12-24 |
Family
ID=36769005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100795753A Expired - Fee Related CN100444964C (en) | 2004-11-23 | 2004-11-23 | Benefication of magnetite-haematite acid mixed mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100444964C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100592933C (en) * | 2006-07-31 | 2010-03-03 | 湖北宜昌林森实业有限公司 | Novel rhombohedral iron ore beneficiation technics |
| CN101191773B (en) * | 2006-11-28 | 2010-05-12 | 宝山钢铁股份有限公司 | Method for automatically identifying and distinguishing skeleton crystal diamond-type haematite and remanet haematite |
| CN101204681B (en) * | 2007-09-03 | 2010-12-08 | 沈阳鑫博工业技术发展有限公司 | Method of refining iron ore from alkaline red mud and making gangue neutral |
| CN101618366B (en) * | 2009-07-17 | 2011-09-07 | 华南理工大学 | Method for removing iron titanium from non-metallic mineral raw materials |
| CN102218368A (en) * | 2011-03-15 | 2011-10-19 | 鞍钢集团矿业公司 | Process for concentrating and filtering magnetite concentrate |
| CN101298067B (en) * | 2008-06-24 | 2012-02-08 | 武汉理工大学 | Filter method of reverse flotation iron concentrate of instant acidified degradation |
| CN102773150A (en) * | 2011-05-12 | 2012-11-14 | 云南锡业集团（控股）有限责任公司 | Polymetallic (iron, tin and zinc) ore comprehensive recovery beneficiation method |
| WO2012159342A1 (en) * | 2011-05-26 | 2012-11-29 | 山东乾舜矿冶科技股份有限公司 | Process for extracting iron from high silicon alumohematite |
| CN102909126A (en) * | 2012-09-21 | 2013-02-06 | 镇江市高等专科学校 | Magnetic field intensity controlling and monitoring device for flameproof magnetic separation iron removing equipment |
| CN103434859A (en) * | 2013-08-28 | 2013-12-11 | 中冶长天国际工程有限责任公司 | Method and device for controlling discharging of ore grinding cabin in process of ore grinding |
| CN104888960A (en) * | 2015-06-12 | 2015-09-09 | 鞍钢集团矿业公司 | Magnetic-floating separation technology of micro-fine particle dissemination magnet-hematite mixed ore |
| CN105521869A (en) * | 2016-02-02 | 2016-04-27 | 大连地拓重工有限公司 | Re-concentration method for hematite combined tailings |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558635A (en) * | 1947-12-15 | 1951-06-26 | Hanna Coal And Ore Corp | Process for treating a magnetic iron ore |
| US3022956A (en) * | 1958-04-14 | 1962-02-27 | Int Minerals & Chem Corp | Beneficiation of ores |
| US3502271A (en) * | 1967-05-29 | 1970-03-24 | Univ Minnesota | Iron ore treating process |
| CN1029459C (en) * | 1990-06-09 | 1995-08-09 | 冶金工业部马鞍山钢铁设计研究院 | Process for dressing iron from low-rank iron pyrites roasted slag |
| CN1301602A (en) * | 1999-12-27 | 2001-07-04 | 鞍钢集团弓长岭矿业公司 | Fine sieve 'magnet-gravity ore dressing machine' ore dressing technique |
-
2004
- 2004-11-23 CN CNB2004100795753A patent/CN100444964C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100592933C (en) * | 2006-07-31 | 2010-03-03 | 湖北宜昌林森实业有限公司 | Novel rhombohedral iron ore beneficiation technics |
| CN101191773B (en) * | 2006-11-28 | 2010-05-12 | 宝山钢铁股份有限公司 | Method for automatically identifying and distinguishing skeleton crystal diamond-type haematite and remanet haematite |
| CN101204681B (en) * | 2007-09-03 | 2010-12-08 | 沈阳鑫博工业技术发展有限公司 | Method of refining iron ore from alkaline red mud and making gangue neutral |
| CN101298067B (en) * | 2008-06-24 | 2012-02-08 | 武汉理工大学 | Filter method of reverse flotation iron concentrate of instant acidified degradation |
| CN101618366B (en) * | 2009-07-17 | 2011-09-07 | 华南理工大学 | Method for removing iron titanium from non-metallic mineral raw materials |
| CN102218368A (en) * | 2011-03-15 | 2011-10-19 | 鞍钢集团矿业公司 | Process for concentrating and filtering magnetite concentrate |
| CN102773150A (en) * | 2011-05-12 | 2012-11-14 | 云南锡业集团（控股）有限责任公司 | Polymetallic (iron, tin and zinc) ore comprehensive recovery beneficiation method |
| WO2012159342A1 (en) * | 2011-05-26 | 2012-11-29 | 山东乾舜矿冶科技股份有限公司 | Process for extracting iron from high silicon alumohematite |
| CN102909126A (en) * | 2012-09-21 | 2013-02-06 | 镇江市高等专科学校 | Magnetic field intensity controlling and monitoring device for flameproof magnetic separation iron removing equipment |
| CN102909126B (en) * | 2012-09-21 | 2014-12-24 | 镇江市高等专科学校 | Magnetic field intensity controlling and monitoring device for flameproof magnetic separation iron removing equipment |
| CN103434859A (en) * | 2013-08-28 | 2013-12-11 | 中冶长天国际工程有限责任公司 | Method and device for controlling discharging of ore grinding cabin in process of ore grinding |
| CN103434859B (en) * | 2013-08-28 | 2016-02-03 | 中冶长天国际工程有限责任公司 | The control method of ore grinding storehouse blanking in a kind of grinding process and device |
| CN104888960A (en) * | 2015-06-12 | 2015-09-09 | 鞍钢集团矿业公司 | Magnetic-floating separation technology of micro-fine particle dissemination magnet-hematite mixed ore |
| CN105521869A (en) * | 2016-02-02 | 2016-04-27 | 大连地拓重工有限公司 | Re-concentration method for hematite combined tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100444964C (en) | 2008-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102430481B (en) | Sorting process for high-ash and difficult-separation coal slime | |
| US8741023B2 (en) | Ore beneficiation | |
| CN110201791B (en) | Comprehensive utilization method of sandy kaolin tailings containing tourmaline, muscovite and quartz sand | |
| CN109894256B (en) | Iron-extracting impurity-reducing mineral separation method for low-grade iron ore powder | |
| CN1778471A (en) | Benefication of magnetite-haematite acid mixed mine | |
| CN110560258B (en) | Device and process for selecting ultra-clean coal by physical cyclone recovery jigging overflow coal slime | |
| CN102824956B (en) | Poor hematite grading level and narrow level sorting process | |
| CN1785527A (en) | Oxidation ore classification technology | |
| CN111495574A (en) | Novel low-grade ore preselection process | |
| CN109225611B (en) | Coarse slime separating system and process of three-product liquid-solid fluidized bed | |
| CN102671755B (en) | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite | |
| CN102773150A (en) | Polymetallic (iron, tin and zinc) ore comprehensive recovery beneficiation method | |
| CN113976306A (en) | Pre-waste-throwing system and process for complex refractory low-grade molybdenum ore heavy-medium beneficiation | |
| CN102317481A (en) | Production is suitable for the novel method that iron and steel are made the iron ore concentrate of process | |
| CN101213024A (en) | Mineral element separating method and its device | |
| CN110385197A (en) | A kind of the gravity separation system and technique of barite fluorite associated minerals | |
| CN108114805A (en) | A kind of lean hematite stage grinding-magnetic separation shifts to an earlier date process for discarding tailings | |
| WO2024045687A2 (en) | Method for pre-selection and discarding and reducing over-grinding of gold ores | |
| CN106391296B (en) | A kind of gravity ore dressing method of particulate antimony oxide ore | |
| CN110918247A (en) | Sorting method of low-grade tungsten black and white fine mud | |
| CA2418020C (en) | Steel slag processing jig system | |
| CN109499748B (en) | Method for separating cassiterite and gangue in ore grinding circuit by selecting ore | |
| CN1814826A (en) | Non-ferrous metal tailings re-selecting and utilizing method | |
| RU2490068C2 (en) | Method of dressing of iron ore | |
| CN109876918A (en) | The monomineralic preparation method of antimony oxide ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUXI DAHONGSHAN MINING INDUSTRY CO., LTD. Effective date: 20130227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130227 Address after: 650203 Yunnan city of Kunming province Anning Kunming Lang Chuang Technology Center Patentee after: Kunming Iron and Steel Group Co., Ltd. Patentee after: Yuxi Dahongshan Mining Co., Ltd. Address before: 650203 Yunnan city of Kunming province Anning Kunming Lang Chuang Technology Center Patentee before: Kunming Iron and Steel Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20171123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |