CN107716093A - A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization - Google Patents
A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization Download PDFInfo
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- CN107716093A CN107716093A CN201711113880.3A CN201711113880A CN107716093A CN 107716093 A CN107716093 A CN 107716093A CN 201711113880 A CN201711113880 A CN 201711113880A CN 107716093 A CN107716093 A CN 107716093A
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- magnetic
- concentrate
- magnetic separation
- ore deposit
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000010936 titanium Substances 0.000 title claims abstract description 44
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 238000007885 magnetic separation Methods 0.000 claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000012141 concentrate Substances 0.000 claims abstract description 35
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims description 19
- 239000006148 magnetic separator Substances 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 235000012054 meals Nutrition 0.000 claims 1
- 230000010349 pulsation Effects 0.000 claims 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910001773 titanium mineral Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization, by in it is broken it is broken after material feed dry type magnetic separation operation, it is selected to dry type magnetic separation concentrate progress primary grinding-weak magnetic roughing-weak magnetic of acquisition, obtain the magnetite concentrate of iron concentrate grade >=60%；The selected mine tailing of weak magnetic roughing, weak magnetic is used as after merging and selects titanium to ore deposit；To selecting titanium first to carry out one section of high intensity magnetic separation to ore deposit, one section of high intensity magnetic separation concentrate is fed into-two sections of high intensity magnetic separation operations of secondary grinding, obtains two sections of high intensity magnetic separation concentrate, two sections of high intensity magnetic separation concentrate are subjected to shaking table roughing-table concentration, dish out respectively shaking table rougher tailings, table concentration mine tailing, obtain final ilmenite concentrate.The inventive method can not only obtain qualified iron ore concentrate and ilmenite concentrate, can also obtain qualified aggregate, realize the cleaning comprehensive utilization of low-grade titanium-containing magnet ore deposit.
Description
Technical field
The invention belongs to mineral resources comprehensive utilization technical field, and in particular to a kind of comprehensive utilization choosing of titanium-containing magnet ore deposit
Ore deposit method, full Iron grade≤20%, TiO are suitable for by it2The cleaning synthesis of the low-grade titanium-containing magnet ore deposit of grade 6%~8%
Utilize.
Background technology
China's titanium aboundresources, reserves position is at the forefront in the world, and ilmenite is the main Types of China's titanium resource, accounts for China
The 98% of titanium resource gross reserves, rutile only accounts for 2%.Ilmenite is that China produces titanium sponge, the primary raw material of preparing titanium dioxide,
And production ferrotianium and the indispensable raw material of welding rod.Although China's titanium iron ore deposit is very abundant, the overwhelming majority belongs to low
The primary ore of grade, often with magnetic iron ore association altogether, form titanium-containing magnet ore.With the development of economy and society, China's items base
Plinth construction is increasing to the demand of titanium resource, and high-quality titanium resource shortage turns into undisputable fact, to meet domestic titanium work
The demand of industry, China need import millions of tons titanium ore every year.Therefore, study and there is weight using low-grade titanium-containing magnet ore
Want meaning.
Low-grade titanium-containing magnet ore is because useful element content is low, grain size number is thin, mineral composition is complicated, therefore ore dressing
It is very big using difficulty.The beneficiation method for being presently used for ilmenite mainly has:Gravity separation method, floatation, magnetic method and combined sorting
Method.Wherein, combined sorting method mainly includes weight-flotation combined method, again-electric separation combination method, strong magnetic-floatation, strong magnetic-weight
Choosing-electrical concentration, strong magnetic-gravity separation method, graded combination beneficiating method etc..Also have using classification-gravity treatment-magnetic separation-roasting combined stream
Cheng Jinhang is repeatedly sorted, and is separated iron, titanium mineral.Although many research units have carried out many research works at present
Make, also achieve many important achievements in research, but still have the following disadvantages：
(1) pre-selecting before grinding technical study depth is inadequate.Pre-selecting before grinding technique can effectively improve into mill grade, reduce ore grinding
Amount, therefore be used widely in single magnetite separation, but due to being limited by strong magnetic bulk pre-selection device, weak magnetic
The particularly bulk pre-selection technique application of ilmenite pre-selection technique is few, so as to cause ore grinding cost too high.In view of in titaniferous magnetic
Ilmenite and magnetic iron ore often close symbiosis, are preselected under rational particle size after cracking using weak magnetic separation equipment to it in iron ore
It is possible to what is realized, it is therefore necessary to which it is furtherd investigate.
(2) floatation cost is high, environmental pollution is big.Although floatation is to reclaim fine fraction low-grade ilmenite to have efficacious prescriptions
Method, but the shortcomings that reagent cost is high, environmental pollution is big be present.Requirement of the country to environmental protection at present is increasingly strict, therefore studies
Using beneficiation cost, low and small environmental pollution magnetic separation and gravity separation technology are particularly important.
For the low-grade titanium-containing magnet ore deposit of clean utilization,《Mineral products are protected and comprehensive utilization》" certain that 5th phase in 2010 delivers
In the text of Fine ilmenite Experimental study on ore dressing " one, TiO is contained to certain24.75%th, TFe 16.41% Fine Fraction Ilmenite, carry out
Experimental study on ore dressing, using weight-magnetic combined process flow, closed-circuit test has obtained TiO2Grade 44.32%, TFe grades
33.58% concentrate.Although the mineral processing circuit is simple in construction, less pollution to environment, there is also mine tailing generation
The problem of amount big (yield of mine tailing+silt is up to 95.44%).
The content of the invention
The purpose of the present invention provides a kind of good energy-conserving effect, right aiming at the above-mentioned problems in the prior art
Environment influence small, strong adaptability, can synthetical recovery iron ore concentrate, ilmenite concentrate, mine tailing aggregate, good in economic efficiency low product
The method of position titanium-containing magnet ore deposit cleaning comprehensive utilization.
To realize the above-mentioned purpose of the present invention, a kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention is adopted
Technical scheme is：
A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention, by Iron grade 16%~20%, TiO2
The low-grade titanium-containing magnet green ore of grade 6%~9%, the broken material grain for being crushed to 50~0mm grain size content >=90% in
Degree, and use following processing step：
1) by it is broken it is broken after material feed dry type magnetic separation operation, the dry type magnetic separation mine tailing of discharge is as concrete bone
Material；It is selected to dry type magnetic separation concentrate progress primary grinding-weak magnetic roughing-weak magnetic of acquisition, obtain iron concentrate grade >=60%
Magnetite concentrate；The selected mine tailing of weak magnetic roughing, weak magnetic is used as after merging and selects titanium to ore deposit.
The permanent magnet dry type magnetic concentration working uses rare earth permanent-magnet dry cylinder magnetic separator, the magnetic on the belt for magnetic separator surface
Induction is in 200~300mT scopes, and cylinder table wire velocity control is in 2.0~3.0m/s；The selected magnetic strength of weak magnetic roughing, weak magnetic
The intensity is answered to be respectively：190~250mT, 160~200mT.
2) to selecting titanium first to carry out one section of high intensity magnetic separation to ore deposit, one section of high intensity magnetic separation mine tailing of dishing out；By one section of high intensity magnetic separation essence of acquisition
Ore deposit feeds-two sections of high intensity magnetic separation operations of secondary grinding, obtains two sections of high intensity magnetic separation concentrate, two sections of high intensity magnetic separation mine tailings of dishing out.
One section of described high intensity magnetic separation uses electromagnetism pulsating high gradient intensity magnetic separator, and magnetic induction intensity is 0.7~0.9T；Two sections
High intensity magnetic separation uses permanent magnetism pulsating high gradient magnetic separator, and magnetic induction intensity is 0.2~0.4T.
3) shaking table roughing-table concentration, shaking table roughing of dishing out respectively are carried out to two sections of high intensity magnetic separation concentrate that 2) step obtains
Mine tailing, table concentration mine tailing, obtain final ilmenite concentrate.
1~2 ° of the cross fall of described shaking table roughing, flushing water 190~250kg/h, 15~20mm of stroke, jig frequency 300
~350 times/min；0.8~1.2 ° of the cross fall of described table concentration, flushing water 190~250kg/h, 15~20mm of stroke,
300~350 times/min of jig frequency.
The mog of primary grinding in step 1) is -0.076 ㎜ 60%~65%, the secondary grinding in step 2)
Mog be -0.076 ㎜ 85%~90%.
In step 1), the magnetic induction intensity of the belt surface of described rare earth permanent-magnet dry cylinder magnetic separator 240~
280mT scopes are preferred, and cylinder table wire velocity control is advisable in 2.3~2.7m/s；Weak magnetic roughing, weak magnetic selected magnetic induction intensity point
It is not preferably：200~220mT, 170~190mT；In step 2), the magnetic induction of described electromagnetism pulsating high gradient intensity magnetic separator
Intensity is preferably 0.75~0.85T；The magnetic induction intensity of described permanent magnetism pulsating high gradient magnetic separator is preferably 0.28~
0.35T。
Compared with prior art, a kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention has and following had
Beneficial effect：
(1) dry type magnetic separation operation is used, the aggregate of yield about 30% can be not only obtained, after can also effectively reducing
Continuous operation treating capacity, improve Beneficiation Feed Grade, reduce fine tailings discharge capacity.
(2) use stage grinding staged magnetic separation ore-dressing technique, can effectively prevent it is overground, obtain qualified iron ore concentrate in advance,
Be advantageous to energy-saving.
(3) tail-shaking table is thrown using high intensity magnetic separation and carries smart titanium selecting art, the medicament for having prevented conventional flotation titanium selecting art is dirty
Dye problem, is truly realized clean utilization.
(4) by method provided by the invention, can making China, largely low-grade titanium-containing magnet ore deposit is comprehensively utilized, no
Only aggregate can be provided for building material industry, iron ore concentrate and ilmenite concentrate can also be provided for metallurgy industry, be advantageous to alleviate
The insufficient situation of China's ferrotitanium resource.
Brief description of the drawings
Fig. 1 is a kind of method process chart of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention；
Fig. 2 is a kind of side operator quality process figure of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention.
Embodiment
For the description present invention, low-grade titanium-containing magnet ore deposit cleaning a kind of to the present invention with reference to the accompanying drawings and examples integrates
The method utilized is described in further details.
Process object in the present embodiment is certain domestic low-grade ilmenite stone.To the ore carry out multielement analysis and
Iron, titanium material phase analysis, the results are shown in Table 1~3.
The raw ore multielement analysis result % of table 1
The raw ore Fe clusters analysis result % of table 2
The raw ore titanium material phase analysis result % of table 3
Analysis result shows that iron, the Ti content of the ore are relatively low, and wherein Iron grade is 19.86%, TiO2Grade is
7.09%, main valuable mineral is titanomagnetite and hematite-limonite, is secondly ilmenite.
A kind of method process chart of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the invention as shown in Figure 1 is simultaneously tied
Close Fig. 2 to find out, a kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization of the present invention specifically includes following technique, step：
1) by full Iron grade 19.67%, TiO2The low-grade titanium-containing magnet ore deposit of grade 7.06% is crushed to 50~0mm, enters
Row dry type magnetic separation, magnetic induction intensity 250mT, cylinder table linear velocity are 2.5m/s, and plate washer spacing is 800mm, can obtain full Iron grade
22.95%th, TiO2The rough concentrate of grade 8.31% and the aggregate of yield 31.35%.
2) the dry type magnetic separation rough concentrate obtained by step 1) is milled to -0.076mm and accounts for 60%, carry out wet type weak magnetic roughing and wet
Formula weak magnetic is selected, and weak magnetic roughing magnetic induction intensity is 200mT, and the selected magnetic induction intensity of weak magnetic is 180mT, can obtain full Iron grade
61.71% iron ore concentrate.
3) one section of wet high-intensity magnetic separation, magnetic strength are carried out after merging the weak magnetic rougher tailings in step 2), weak magnetic cleaner tailings
It is 0.8T to answer intensity, can obtain TiO2One section of wet high-intensity magnetic separation rough concentrate of grade 13.54%.
4) one section of wet high-intensity magnetic separation rough concentrate obtained by step 3) is milled to -0.076mm 85%, it is strong carries out two sections of wet types
Magnetic separation, the magnetic induction intensity of two sections of wet high-intensity magnetic separations is 0.3T, can obtain TiO2Two sections of wet high-intensity magnetic separations of grade 21.37% are coarse-fine
Ore deposit.
5) two sections of wet high-intensity magnetic separation rough concentrates obtained by step 4) are subjected to roughing and selected, shaking table cross fall using shaking table
1 °, flushing water 200kg/h, stroke 15mm of degree, 300 times/min of jig frequency, can obtain TiO2The ilmenite concentrate of grade 45.28%.
Claims (3)
- A kind of 1. method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization, by Iron grade 16%~20%, TiO2Grade 6%~ 9% low-grade titanium-containing magnet green ore, the broken raw meal particle size for being crushed to 50~0mm grain size content >=90%, its feature in It is also to use following processing step：1) by it is broken it is broken after material feed dry type magnetic separation operation, the dry type magnetic separation mine tailing of discharge is as aggregate；It is right Dry type magnetic separation concentrate progress primary grinding-weak magnetic roughing-weak magnetic of acquisition is selected, obtains the magnet of iron concentrate grade >=60% Ore deposit concentrate；The selected mine tailing of weak magnetic roughing, weak magnetic is used as after merging and selects titanium to ore deposit；The permanent magnet dry type magnetic concentration working uses rare earth permanent-magnet dry cylinder magnetic separator, the magnetic induction on the belt for magnetic separator surface Intensity is in 200~300mT scopes, and cylinder table wire velocity control is in 2.0~3.0m/s；The selected magnetic induction of weak magnetic roughing, weak magnetic is strong Degree is respectively：190~250mT, 160~200mT；2) to selecting titanium first to carry out one section of high intensity magnetic separation to ore deposit, one section of high intensity magnetic separation mine tailing of dishing out；One section of high intensity magnetic separation concentrate of acquisition is given Enter-two sections of high intensity magnetic separation operations of secondary grinding, obtain two sections of high intensity magnetic separation concentrate, two sections of high intensity magnetic separation mine tailings of dishing out；One section of described high intensity magnetic separation uses electromagnetism pulsating high gradient intensity magnetic separator, and magnetic induction intensity is 0.7~0.9T；Two sections of strong magnetic Choosing uses permanent magnetism pulsating high gradient magnetic separator, and magnetic induction intensity is 0.2~0.4T；3) shaking table roughing-table concentration, shaking table roughing tail of dishing out respectively are carried out to two sections of high intensity magnetic separation concentrate that 2) step obtains Ore deposit, table concentration mine tailing, obtain final ilmenite concentrate；1~2 °, 15~20mm of stroke of the cross fall of described shaking table roughing, 300~350 times/min of jig frequency；Described shaking table 0.8~1.2 °, 15~20mm of stroke of selected cross fall, 300~350 times/min of jig frequency.
- A kind of 2. method for separating of low-grade titanium-containing magnet ore deposit as claimed in claim 1, it is characterised in that：One in step 1) The mog of section ore grinding is -0.076 ㎜ 60%~65%, and the mog of the secondary grinding in step 2) is -0.076 ㎜ 85%~90%.
- A kind of 3. method for separating of low-grade titanium-containing magnet ore deposit as claimed in claim 1 or 2, it is characterised in that：In step 1), The magnetic induction intensity of the belt surface of described rare earth permanent-magnet dry cylinder magnetic separator is in 240~280mT scopes, cylinder table linear speed Degree control is in 2.3~2.7m/s；The selected magnetic induction intensity of weak magnetic roughing, weak magnetic is respectively：200~220mT, 170~ 190mT；In step 2), the magnetic induction intensity of described electromagnetism pulsating high gradient intensity magnetic separator is 0.75~0.85T；It is described forever The magnetic induction intensity of magnetic pulsation high gradient magnetic separator is 0.28~0.35T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711113880.3A CN107716093A (en) | 2017-11-13 | 2017-11-13 | A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization |
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| CN201711113880.3A CN107716093A (en) | 2017-11-13 | 2017-11-13 | A kind of method of low-grade titanium-containing magnet ore deposit cleaning comprehensive utilization |
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Family
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499743A (en) * | 2018-10-31 | 2019-03-22 | 会理县秀水河矿业有限公司 | A method of improving ultra-poor mine grade |
| CN109847923A (en) * | 2019-02-22 | 2019-06-07 | 中国地质科学院矿产综合利用研究所 | Efficient recovery process of extremely-poor weathered primary ilmenite |
| CN109967224A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Miscellaneous ore-dressing technique drops in apatite vanadium titano-magnetite |
| CN110479468A (en) * | 2019-08-28 | 2019-11-22 | 马钢集团设计研究院有限责任公司 | A kind of pre-selection technique of chromium depleted zone stone |
| CN113680521A (en) * | 2021-08-23 | 2021-11-23 | 武定新立钛业有限公司 | Titanium rough concentrate concentration method |
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| CN109967224A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Miscellaneous ore-dressing technique drops in apatite vanadium titano-magnetite |
| CN109967224B (en) * | 2019-03-29 | 2021-04-16 | 中冶北方（大连）工程技术有限公司 | Impurity-reducing mineral separation process for apatite vanadium titano-magnetite |
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| CN113680521A (en) * | 2021-08-23 | 2021-11-23 | 武定新立钛业有限公司 | Titanium rough concentrate concentration method |
| CN113680521B (en) * | 2021-08-23 | 2023-11-03 | 武定国钛金属有限公司 | Titanium rough concentrate concentration method |
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