CN1714940A - Separation method of mineral elements - Google Patents

Separation method of mineral elements Download PDF

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Publication number
CN1714940A
CN1714940A CN 200510027293 CN200510027293A CN1714940A CN 1714940 A CN1714940 A CN 1714940A CN 200510027293 CN200510027293 CN 200510027293 CN 200510027293 A CN200510027293 A CN 200510027293A CN 1714940 A CN1714940 A CN 1714940A
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Prior art keywords
ore
type layering
mineral
contain
magnetic
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CN 200510027293
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周涛
周明明
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Priority to CN 200510027293 priority Critical patent/CN1714940A/en
Publication of CN1714940A publication Critical patent/CN1714940A/en
Priority to CNA2006800240691A priority patent/CN101213024A/en
Priority to PCT/CN2006/001477 priority patent/WO2007000113A1/en
Pending legal-status Critical Current

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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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623—Upward current classifiers
    • 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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

The mineral element separating process includes the following steps: crushing, sieving, grinding, grading, initial sorting in type-II laminating machine, and eliminating impurity and purification in type-I laminating machine. The present invention has smart structure and wide separation range, can separate mineral elements with specific weight difference within 0.5, and makes it possible to treat tail mineral and dregs to realize comprehensive utilization.

Description

Separation method of mineral elements
Technical field:
The present invention relates to a kind of partition method, relate in particular to a kind of separation method of mineral elements.
Background technology:
Ore pulp flows in the ore separators staving with certain tangent line by stock inlet, and staving moves in a circle in the action of centrifugal force lower edge.Heavy ore particle is thrown to barrel rim by centrifugal force, along the downward sedimentation of bucket wall.Light ore particle is pushed to liquid level by ascending current.This is the operation principle of general centrifugal gravity treatment machinery.But because the size and the ascending current of centrifugal force can not influence each other and mate, so can only be used to concentrate, desliming and the big mineral of separation difference in specific gravity.Difference in specific gravity is sorted difficulty less than the mineral element below 1.5, and sorting result is undesirable.Then can not effectively sort the mineral element of difference in specific gravity below 1.25.
Summary of the invention:
Technical problem to be solved by this invention provides and a kind ofly can effectively overcome above-mentioned defective, has adopted a kind of separation method of mineral elements.
To achieve these goals, the technical solution adopted for the present invention to solve the technical problems is that a kind of separation method of mineral elements is characterized in: following steps: broken  screening → ore grinding  classification → two type layering machine primary election → type layering machine removal of impurities is purified.Owing to adopt such scheme, be not difficult to draw the present invention and have following beneficial effect, the present invention is skillfully constructed, and by the flow velocity of infinite variable speed mode with the rotating speed control ore pulp of impeller, determines the rotating speed of impeller, the i.e. flow velocity of ore pulp according to selected mineral.Regulate stock inlet flow, the flow of bottom water supply and the flow of bottom ore discharge simultaneously, the rising that makes ore pulp form adjustable water saving resistance size under the acting in conjunction of mechanical force and ascending current is shoved.When rising is shoved the water resistance that forms when being greater than or less than the sinking speed (lifting critical point) of certain mineral, it will layering occur and separate with it with other mineral element in hindered settling.Or it is along with rising is shoved and is floated to liquid level, and the overflow launder of form along staving top with the stream film under the promotion of current flows out, or goes out through the enrichment concentrated flow at the bottom of being deposited to barrel.The water resistance that forms of shoving if rise only is slightly less than the sinking speed (lifting critical point) of these mineral, and the proportion element that is slightly less than these mineral will overflow from top so.Otherwise then discharge from the bottom.So this beneficiating method can effectively separate the little mineral element of difference in specific gravity.Need to prove that at this downward suction that gape of bottom produces all fails to be noted in the former gravity treatment machinery to the influence of ore pulp middling particle sedimentation.This beneficiating method is equipped with stabilier for the influence to the ore particle sedimentation in the ore pulp of the suction that solves the bottom gape and produce in enrichment groove upper edge, bottom, and forcing mineral to be deposited to the staving bottom could go into poly-mining area (cone of staving lower edge) by the enrichment concentrated flow.Simultaneously middle stabilier is installed in poly-mining area, stabilier down is installed above gape, can make the impurity that sinks to poly-mining area in company with ore particle under the pressure of water, can realize secondary separation, also further reduce of the influence of gape suction simultaneously the ore particle sinking speed in the ore pulp.Shove in order to form the rising that is fit to certain mineral separation,, determine length, width and the setting angle of impeller by the ore dressing experiment.Determine that impeller is single impeller or bilobed wheel.Determine the ratio of staving diameter and height.Thus and thus; the scope that sorts is wide; can separate difference in specific gravity effectively; overcome traditional gravity treatment machinery and can not effectively separate the shortcoming of difference in specific gravity at the mineral element below ± 1.25 at the mineral element more than ± 0.5; and can handle mine tailing, waste residue, abandoned mine effectively; realize the comprehensive reutilization to mineral; the mineral quality of selecting is excellent, and beneficiation cost is low, and production technology is easy; small investment; instant effect, the construction period is short, rate of return on investment height; can obtain preferable social benefit and economic benefit, tool promotional value.
The specific embodiment:
Its basic beneficiation method is as follows:
1. weak magnetic or non magnetic ore → two type layering machine primary election enrichment → type layering machine removal of impurities purification → concentrate (product).
To the layering ore separators that weak magnetic or non magnetic ore adopt above-mentioned ore dressing principle to make, the beneficiation method of implementing the gravity treatment flow process is referred to as " top and bottom process ".
2. a magnetic mineral → magnetic separation → selected removal of impurities purification → concentrate of type layering machine (product).
Centering, strongly magnetic mineral adopt the magnetic separation machinery and the beneficiation method of the magnetic reconnection interflow journey of the layering ore separators composition that adopts the manufacturing of above-mentioned ore dressing principle to be referred to as " magnetic point-score ".
The applicating example of separation method of mineral elements in ore dressing
1. high-sulfur phosphorus magnetic iron ore
Brief description of the process:
Raw ore → coarse crushing → in small, broken bits (15mm) → dried magnetic throw tail → one time ore grinding  (+0.3mm) scalping (0.3mm) → one time magnetic separation → secondary grinding  (+0.074mm) secondary classification (0.074mm) → secondary magnetic separation → type layering machine (removing sulphur phosphorus) → type layering machine cleaning and Purification → ultra-pure iron ore concentrate.
Annotate: a magnetic tailing is delivered to the first concentrate selection of mine tailing recovery machine recovery and is returned ore grinding one time.The secondary magnetic tailing is delivered to mine tailing recovery machine recovery magnetic concentrate and is returned secondary grinding.A secondary clearing machine is returned in one secondary clearing machine and secondary stratification tail ore deposit after magnetic separation is reclaimed.
Illustrate:
Area, Mianyang, the Sichuan Province high phosphorus magnetic iron ore raw ore that produces contains TFe25.8 ~ 35.8%, contains P1.4 ~ 2.8%.Can sort out by above-mentioned flow process and to contain TFe70.08 ~ 70.16%, P0.08 ~ 0.096% contains S≤0.006%, contains ultra-pure iron ore concentrate of As≤0.02%.The TFe rate of recovery average 80.03%.After the secondary magnetic separation, to-0.044mm, send a type layering machine recleaning through tertiary grinding again, then can contain TFe71 ± 0.5%, contain ultra-pure iron ore concentrate of P≤0.02%.The TFe rate of recovery average 78%.
2. high-sulfur high-arsenic magnetic iron ore
Brief description of the process:
Raw ore → coarse crushing → in small, broken bits → one time ore grinding  (+0.2mm) scalping (0.2mm) magnetic separation → secondary grinding  (+0.074mm) secondary classification (0.074mm) → secondary magnetic separation → one a time type layering machine desulfurization → secondary one type layering machine dearsenification → high-purity refined iron-mineral.
Annotate: mine tailing reclaims with reference to magnetic iron ore.
Illustrate:
Yaan Prefecture, Sichuan Province raw ore contains TFe35 ~ 37%, contains S 〉=0.80%, contains AS≤0.40%, granularity :-5mm.Can TFe65.81 ~ 67.15% by above-mentioned flow process, contain S0.052 ~ 0.1%, contain the iron ore concentrate of AS0.06 ~ 0.08%.The TFe rate of recovery average 75 ~ 76%.
3. high-sulfur high-phosphorus hematite (weak magnetic)
Brief description of the process:
Raw ore → coarse crushing → in small, broken bits (10mm) → the dried magnetic of strong magnetic throw tail → one time ore grinding  (+0.3mm) scalping (0.3 mm) → a time two type layering machine primary election → secondary grinding  (+0.1mm) secondary classification (0.1mm) → secondary two type layering machines select again → tertiary grinding (0.061mm) → the current cyclone classification, be divided into+0.037mm and-two one type layering machines of two ranks of 0.037mm dispensing are selected, the gained concentrate is merged into the final products iron ore concentrate.
Illustrate:
Area, Mianyang, Sichuan Province bloodstone contains TFe33 ~ 35%, contains P≤0.8%.Can select by above-mentioned flow process and to contain TFe61 ~ 62%, contain the iron ore concentrate of P0.12 ~ 0.14%.The TFe rate of recovery average 60.46%.
4. sulfur-containing, phosphorus-containing limonite
Brief description of the process:
Raw ore → coarse crushing → in small, broken bits → one time ore grinding  (+0.3mm) scalping (0.3mm) → one time two type layering machine primary election → secondary grinding  (+0.074mm) secondary classification (0.074mm) → secondary two type layering machines select again → hydroclone classification for+0.037mm and-two one type layering machines of two ranks dispensings of 0.037mm are selected.Institute's concentrate selection is merged into the final products iron ore concentrate.
Illustrate:
Area, state, the Liangshan Mountain, Sichuan Province, raw ore contains TFe44 ~ 46%, contains S 〉=0.5%, contains P 〉=0.62%.Optional as to contain TFe57.05 ~ 57.16% by above-mentioned flow process, contain S0.14%, contain the iron ore concentrate of P0.23%.TFe rate of recovery average out to 62.25%.
5. sulfate slag (pyrite cinder)
Brief description of the process:
Former slag (0.5mm) → one time ore grinding  (+0.15mm) scalping (0.15mm) → one time magnetic separation → secondary grinding  (+0.074mm) secondary classification (0.074mm) → secondary magnetic separation → one a time type layering machine removal of impurities → secondary one type layering machine purification → high-purity refined iron-mineral.
Annotate: mine tailing reclaims the irony correction agent for the cement plant through magnetic separator.True tailings is made the burn-free wear resistance floor tile.
Illustrate:
Area, Deyang, Sichuan, former slag contains TFe42.83%, contains S0.7 ~ 1.0%, contains AS0.1 ~ 0.12%, granularity-0.5mm.Optional as to contain TFe66.5 ~ 67.5% by above-mentioned technological process, contain S0.044 ~ 0.095%, contain the iron ore concentrate of AS0.02 ~ 0.06%, contain the cement irony correction agent of TFe45 ~ 49%.TFe overall recovery 86.39 ~ 89.50%.Wherein, the iron ore concentrate TFe rate of recovery 51.37 ~ 52.14%, the irony correction agent TFe rate of recovery 35.02 ~ 38.14%.
6. vanadium titano-magnetite mine tailing
Brief description of the process:
Mine tailing (0.4mm) → two the primary election of type layering machine throw tail → ore grinding  (+0.1mm) classification (0.1mm) → a magnetic separation → type layering machine desulfurization → type layering machine is selected.
Annotate: magnetic tailing after two type layering machines sort, the primary election ore particle (0.1mm ~+0.044mm) grade through in magnetic separation, send a type layering machine to select again, select rough concentrate to sort ilmenite concentrate again by climbing the existing technology of steel.
Illustrate:
Sichuan Province's Panxi Diqu has carries through magnetic separation, gravity treatment, change choosing and electric separation that iron is got titanium, true tailings after reclaiming the sulphur cobalt concentrate.The mine tailing constituent content has nothing in common with each other climbing steel, heavy steel, prestige steel.Referred to herein as and climb steel and thickly throw useless true tailings in the ore dressing plant.Contain TFe13 ~ 14%, TiO 29.5 ~ 10.0%, V0.1%.Can contain the iron ore concentrate of TFe55 ~ 57%, the TFe rate of recovery 42 ~ 46.85% by above-mentioned flow process.As after the magnetic separation again ore grinding send a type layering machine desulfurization selected TFe58 ~ 60% iron ore concentrate, the TFe rate of recovery 39 ~ 44% of then can containing to-0.061mm.Select rough concentrate to contain TFe40.60%, SiO again 236.89%.Titanium recovery rate is 41%.
7. multielement association iron ore (weak magnetic) mine tailing
Brief description of the process:
Mine tailing (the type layering machine primary election → ore grinding  of granularity-0.15mm) → two (+0.074mm) classification (0.074mm) → two type layering machine select again → one type layering machine desulfurization dephosphorization → a type layering is selected.
Annotate: two type layering machine primary election mine tailings select through two type layering machines again and can get the brickmaking clay, and clay is recovered as 30% of mine tailing total amount.
Illustrate:
Area, Nanjing, Jiangsu Province, mine tailing contains TFe21.59 ~ 22.23%, contains S0.92 ~ 1.02%, contains P0.89 ~ 0.98%.Mine tailing TFe combination: Fe 3O 40.42 ~ 0.46%, FeCO 39.98 ~ 10.84%, FeS 20.89 ~ 1.09%, FeSiO 30.96 ~ 1.12%, Fe 2O 38.71 ~ 9.05%, granularity-0.15mm.Can contain TFe61 ~ 62% by above-mentioned flow process, contain S0.37 ~ 0.5%, contain the iron ore concentrate of P0.12 ~ 0.14%.The TFe rate of recovery 28.7%.
8. troilite mine tailing (nonmetal ore-dressing)
Brief description of the process:
Mine tailing (granularity-5mm) → system sand machine pulverize (0.5mm) → two type layering machine primary election → ore grinding  (+0.06mm) classification (and 0.06mm) two type layering machines select again → the periodic high gradient magnetic separator is selected.-0.5mm primary election mine tailing through a type layering machine select again → selected.
Illustrate:
Yibin, Sichuan Province, area, Luzhou, the troilite mine tailing contains SiO 233.72 ~ 35.81%, AI 2O 330.36 ~ 31.82%, Fe 2O 36.14 ~ 6.40%, S5 ~ 6%, TiO 23.84 ~ 4.84%, LOOS (burning vector) 15.72 ~ 16.21%, granularity-5mm.Mine tailing by above-mentioned flow process-0.06mm grade can contain SiO after two type layering machines select again 242 ~ 43%, AI 2O 335.05 ~ 35.47%, Fe 2O 31.80 ~ 1.96%, S1.0 ~ 1.10%, TiO 20.96%, the first concentrate of LOOS (burning vector) 15.24% can contain SiO after magnetic separation 245 ~ 46%, AI 2O 36 ~ 37.5%, Fe 2O 30.8 ~ 1.0%, S0.6 ~ 0.8%, TiO 20.4 ~ 0.66% final concentrate kaolin (china clay ore deposit).The ore deposit consumption is 2.5: 1.-0.5mm grade primary election mine tailing through twice one type layering machines select again, the selected sulphur concentrate that can contain S27 ~ 32%.The ore deposit consumption is 20: 1.
9. many metals mineral intergrowth mine tailing 1
Brief description of the process:
Mine tailing (0.2mm) → one time magnetic separation → one time ore grinding  (+0.088mm) classification (0.088mm) → ((0.044mm) → one type layering primary election → type layering machine is selected in+0.044mm) classification for secondary magnetic separation → secondary grinding 
Annotate: twice magnetic tailing feeds the primary election of two two type layering machines respectively, and first concentrate selection and chats are gone into the sorting of two one type layering machines respectively.Can get the non-ferrous metal mineral.
Illustrate:
The Gejiu, Yunnan Province is thrown useless mine tailing through magnetic gravity treatment tin ore and is contained TFe45 ~ 51%, contains S0.84 ~ 1.24%, contains AS0.54 ~ 0.62%, contains Sn0.15 ~ 0.25%, contains Zn0.7 ~ 1%, contains Pb2 ~ 2.5%, contains Cu0.2 ~ 0.5%.Can contain TFe64 ~ 66% by above-mentioned flow process, contain S0.06 ~ 0.15%, contain AS0.06 ~ 0.08%, contain Sn, Cu, Zn, Pb and all be lower than 0.1%.The TFe rate of recovery 70.59 ~ 73.33%.Non-ferrous metal rough concentrate after the sorting can return local ore dressing plant.
10. many metals mineral intergrowth mine tailing 2
Brief description of the process:
Mine tailing (the type layering machine primary election → high intensity magnetic separation → ore grinding  of granularity-0.5mm) → two (+0.15mm) classification (0.15mm) → one type layering machine select again → ore grinding  ((purify in+0.074mm) classification by 0.074mm) → one type layering machine desulfurization → type layering machine
Annotate: strong magnetic tail ore deposit feeds a type layering machine after two type layering machine primary election selected, can get the copper rough concentrate, returns local ore dressing plant.
Illustrate:
Gejiu region tin ore flotation tailing contains TFe16 ~ 26%, contains Cu0.25 ~ 0.7%, contains S0.74%, contains AS0.42%.Can obtain containing TFe60 ~ 62% by above-mentioned flow process, contain S0.24 ~ 0.3%, contain AS0.08 ~ 0.12%, contain the iron ore concentrate of Cu0.08%.The TFe rate of recovery 38.75 ~ 47.69%, copper recovery 44.29 ~ 60%.
11. many metals mineral intergrowth mine tailing 3
Brief description of the process:
Mine tailing (granularity-0.1mm) → two type layering machine primary election → type layering machine selects again → and ((0.044mm) → one type layering machine is selected in+0.044mm) classification for ore grinding .
Illustrate:
The somewhere selects the copper mine tailing to contain TFe8.44%, contains Mo0.24%, Ni0.019%, and granularity-0.1mm can contain the molybdenum rough concentrate of Mo2.84 ~ 3.92% by above-mentioned flow process.Molybdenum recovery 50 ~ 60%.
12. martite
Brief description of the process:
Raw ore → coarse crushing → in small, broken bits → one time ore grinding  (+0.2mm) classification (0.2mm) → middle high intensity magnetic separation → secondary grinding  ((purify in+0.074mm) classification by 0.074mm) → one type layering machine desulfurization dephosphorization → type layering machine.
Illustrate:
Area, state, the Liangshan Mountain, Sichuan Province, raw ore contains TFe48 ~ 50%, contains S0.5%, contains P0.8%.Can contain TFe60 ~ 62% by above-mentioned technological process, contain S0.21%, contain the iron ore concentrate of P0.15%.The TFe rate of recovery 69.44 ~ 70.60%.

Claims (1)

1, a kind of separation method of mineral elements is characterized in that: following steps: broken  screening → ore grinding  classification → two type layering machine primary election → type layering machine removal of impurities is purified.
CN 200510027293 2005-06-29 2005-06-29 Separation method of mineral elements Pending CN1714940A (en)

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CN 200510027293 CN1714940A (en) 2005-06-29 2005-06-29 Separation method of mineral elements
CNA2006800240691A CN101213024A (en) 2005-06-29 2006-06-27 Mineral element separating method and its device
PCT/CN2006/001477 WO2007000113A1 (en) 2005-06-29 2006-06-27 A mineral element separating method and an apparatus therefor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101780433B (en) * 2010-01-12 2012-05-09 北京科大国泰能源环境工程技术有限公司 Method and device for fluidization separation of phosphorus element and iron element in high-phosphorus hematite
CN106040409A (en) * 2016-08-24 2016-10-26 孙召华 Ore-dressing system and ore-dressing technology for reducing content of sulphur in iron ore concentrate and for sorting cobalt concentrate
CN109876918A (en) * 2019-03-22 2019-06-14 中国恩菲工程技术有限公司 The monomineralic preparation method of antimony oxide ore

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CN112058500B (en) * 2020-07-29 2022-03-11 中钢集团马鞍山矿山研究总院股份有限公司 Beneficiation method for comprehensively utilizing magnetite concentrate flotation desulfurization foam products
CN113908973B (en) * 2021-08-18 2023-07-14 西北矿冶研究院 Beneficiation method for complex-source copper-gold tailings
CN114669392A (en) * 2022-03-29 2022-06-28 中国地质大学（北京） Mineral dissociation device and method thereof
CN115055277B (en) * 2022-04-27 2023-10-13 四川化工职业技术学院 Process for recovering kaolin, sulfur concentrate and titanium concentrate from pyrite tailings

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CN101780433B (en) * 2010-01-12 2012-05-09 北京科大国泰能源环境工程技术有限公司 Method and device for fluidization separation of phosphorus element and iron element in high-phosphorus hematite
CN106040409A (en) * 2016-08-24 2016-10-26 孙召华 Ore-dressing system and ore-dressing technology for reducing content of sulphur in iron ore concentrate and for sorting cobalt concentrate
CN109876918A (en) * 2019-03-22 2019-06-14 中国恩菲工程技术有限公司 The monomineralic preparation method of antimony oxide ore

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