CN110038716A - Vanadium titano-magnetite tailing recycles technique - Google Patents
Vanadium titano-magnetite tailing recycles technique Download PDFInfo
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- CN110038716A CN110038716A CN201910246311.9A CN201910246311A CN110038716A CN 110038716 A CN110038716 A CN 110038716A CN 201910246311 A CN201910246311 A CN 201910246311A CN 110038716 A CN110038716 A CN 110038716A
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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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
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Abstract
It the invention belongs to technical field of beneficiation, provides a kind of vanadium titano-magnetite tailing and recycles technique, including weight magnetic draws ore separators pre-selection, ball milling and cyclone is closed circuit, weak magnetic roughing, weak magnetic are selected, spiral chute roughing, spiral chute are selected and three sections of shaking tables.Vanadium titano-magnetite tailing feeds weight magnetic and draws ore separators pre-selection, weight magnetic draws the concentrate of ore separators pre-selection to feed cyclone, and hydrocyclone sand returns to cyclone after feeding ball milling ore grinding, and the overflow of cyclone feeds weak magnetic roughing, the concentrate of weak magnetic roughing feeds that weak magnetic is selected, and the selected concentrate of weak magnetic is iron ore concentrate；The selected tailing of the tailing and weak magnetic of weak magnetic roughing feeds spiral chute roughing, and the concentrate of spiral chute roughing feeds that spiral chute is selected, and the selected concentrate of spiral chute feeds three sections of shaking tables processing, and the concentrate of three sections of shaking tables is ilmenite concentrate.The recycling again to iron and titanium in vanadium titano-magnetite tailing may be implemented in the present invention, and realization makes full use of natural mineral resources.
Description
Technical field
The invention belongs to technical field of beneficiation, recycle technique more particularly to a kind of vanadium titano-magnetite tailing.
Background technique
Vanadium titano-magnetite is distributed in multiple countries, the world, such as China as one kind of iron ore and the main source of titanium
Midwest, Russia, U.S. etc..The main useful metal of this kind of ore is iron, titanium and vanadium, but vanadium is generally with vanadium iron spinelle
Form exists, and this vanadium can only be obtained by way of smelting, so its valuable mineral that can be obtained by way of ore dressing
For iron and titanium.The general iron content of this kind of mineral and titaniferous amount are lower, most of to select factory in order to increase economic efficiency, and are all ground using the stage
Mine-stage whipping mode, some select factory before ore grinding also using the technique of whipping after high pressure roller mill 3mm ultrafine grinding, these works
Skill will be greatly reduced the treating capacity of subsequent job, reduce equipment investment, energy consumption, so that the cost of least cost obtains highest warp
Ji benefit.
But the above method is used, often most of valuable minerals are not dissociated, the yield of titanium and iron in tailing
All 50% or more, if not selected recycling again to this partial-titanium in tailing and iron, the significant wastage of resource will result in, it is special
It is not the waste of rare precious metal titanium.But due to being limited by the titanium for recycling iron and titanium in tailing and being generally difficult acquisition high-quality
Concentrate and iron ore concentrate, influence price and market, so currently extremely low to the utilization rate of this kind of tailing.Even if being carried out to this kind of tailing
It selects again, in order to reduce energy consumption, does not often also use ore grinding, but carry out mine tailing salvaging with various dressing methods, it is this to salvage
The concentrate come, quality are difficult to improve, and the grade of general iron ore concentrate is difficult breakthrough 50%, and the content of titanium dioxide is difficult in ilmenite concentrate
Generally all it is difficult more than 20% more than 35%, and relative to tailing to the rate of recovery of mine titanium and iron.
Therefore, in order to more effectively utilize nature mineral resources, it is necessary to develop it is a kind of can to valuable mineral iron and titanium into
Row recycles again, and the higher a kind of vanadium titano-magnetite tailing recycling technique of grade and the rate of recovery of iron and titanium.
Summary of the invention
In order to effectively recycle iron and titanium in titanomagnetite and ilmenite tailing, the present invention provides a kind of vanadium titanium magnetic
Iron ore mine recycles technique, including weight magnetic draws ore separators pre-selection, ball milling and cyclone is closed circuit, weak magnetic roughing, weak magnetic are selected, spiral shell
Revolve that chute roughing, spiral chute be selected and three sections of shaking tables；
Granularity is that the vanadium titano-magnetite tailing of 0-1mm feeds weight magnetic drawing ore separators pre-selection, and weight magnetic draws the essence of ore separators pre-selection
Mine feed ball milling and cyclone it is closed circuit in cyclone, hydrocyclone sand feeds ball milling, and product returns to cyclone after ball milling ore grinding,
The overflow that the 0-200 mesh of cyclone accounts for 85% feeds weak magnetic roughing, and the concentrate of weak magnetic roughing feeds that weak magnetic is selected, and weak magnetic is selected
Concentrate is iron ore concentrate；
The selected tailing of the tailing and weak magnetic of weak magnetic roughing feeds spiral chute roughing, and the concentrate of spiral chute roughing is fed
Spiral chute is selected, and the selected concentrate of spiral chute feeds first segment shaking table, and the chats of first segment shaking table feeds second segment shaking table,
The chats of second segment shaking table feeds third section shaking table, and the concentrate of three sections of shaking tables is ilmenite concentrate；
Weight magnetic draws the tailing of ore separators pre-selection, the selected tailing of tailing, spiral chute of spiral chute roughing and three sections to shake
The tailing of bed collectively forms technique tailing and throws tail.
Preferably, it is 13-17 revs/min that the heavy magnetic, which draws the revolving speed of ore separators pre-selection,.
Preferably, it is 8-10 degree that the heavy magnetic, which draws the gradient of the separation tube of ore separators,.
Preferably, it is 7200-8800GS that the heavy magnetic, which draws the magnetic field strength of ore separators pre-selection,.
Preferably, the magnetic field strength of the weak magnetic roughing is 1100-1300GS.
Preferably, the selected magnetic field strength of the weak magnetic is 900-1100GS.
Preferably, the valuable mineral main component of the vanadium titano-magnetite tailing is titanomagnetite and ilmenite, vanadium titanium magnetic
The gangue mineral of iron ore mine is mainly hornblend, pyroxene and plagioclasite；Fe grade is 12.80% and TiO2Content be
4.6% vanadium titano-magnetite tail after above-mentioned vanadium titano-magnetite tailing recycles process, obtain Fe grade be 60.0%,
TiO2Content is 4.21%, the Fe rate of recovery 29.0% and TiO2The rate of recovery be 5.6% iron ore concentrate and Fe grade be
30.23%, TiO2Content is 45.0%, the Fe rate of recovery 10.02% and TiO2The ilmenite concentrate that the rate of recovery is 41.5%.
The present invention first draws ore separators pre-selection to preselect vanadium titano-magnetite tailing using weight magnetic, is closed with ball milling and cyclone
Road is to the further resolution process of mineral, then continuously using weak magnetic roughing and weak magnetic is selected obtains iron ore concentrate, and to weak magnetic roughing
Implement that spiral chute roughing, spiral chute be selected and three sections of shaking table this series of process processing with the selected tailing of weak magnetic；Again
Therefrom have selected ilmenite concentrate.Process implementing cost of the invention is not high, but may be implemented in vanadium titano-magnetite tailing iron and
The recycling again of titanium, realization make full use of natural mineral resources.
Detailed description of the invention
Fig. 1 is the flow diagram that vanadium titano-magnetite tailing recycles process example.
Specific embodiment
In order to further illustrate the technical means and efficacy of the invention taken in order to solve the technical problem, below in conjunction with attached
Figure the invention will be described in further detail with specific embodiment, but not as the present invention claims protection scope limit.
Vanadium titano-magnetite tailing as shown in Figure 1 recycles the process of technique alternative embodiment, including weight magnetic to draw ore separators
It preselects S1001, ball milling S1003 and cyclone S1002 is closed circuit, weak magnetic roughing S1004, the selected S1005 of weak magnetic, spiral chute roughing
The selected S1007 and three section of shaking table of S1006, spiral chute；
The granularity of vanadium titano-magnetite tailing is 0-1mm, and Fe grade is 12.80% and TiO2Content be 4.6%, wherein having
It is titanomagnetite and ilmenite with mineral main component, gangue mineral is mainly the silicate mines such as hornblend, pyroxene and plagioclasite
Object, granularity are that the vanadium titano-magnetite tailing of 0-1mm feeds weight magnetic drawing ore separators pre-selection S1001, weigh magnetic in the present embodiment and draw choosing
The revolving speed of mine machine pre-selection S1001 is set as 15 revs/min, weight magnetic draw the gradient of the separation tube of ore separators S1001 be adjusted to 9 degree, again
Magnetic draws the magnetic field strength of ore separators pre-selection S1001 to be set as 8000GS, can obtain weight magnetic and the concentrate of ore separators pre-selection S1001 is drawn to produce
Rate is 60%, Fe grade is 17.73%, TiO2Content is 7.13%, the Fe rate of recovery 83.1% and TiO2The rate of recovery is 93%, weight
The concentrate of magnetic drawing ore separators pre-selection S1001 enters ball milling S1003 and cyclone S1002 is closed circuit；
Weight magnetic draw ore separators pre-selection S1001 concentrate feed ball milling S1003 and cyclone S1002 it is closed circuit in cyclone
S1002, cyclone S1002 sand setting feed ball milling S1003, and the product after ball milling S1003 ore grinding returns to cyclone S1002, eddy flow
The overflow product that the 0-200 mesh of device S1002 accounts for 85% feeds weak magnetic roughing S1004；
The magnetic field strength of weak magnetic roughing S1004 is set as 1200GS, and it is selected that the concentrate of weak magnetic roughing S1004 feeds weak magnetic
S1005, the magnetic field strength of the selected S1005 of weak magnetic are set as 1000GS, and the concentrate of the selected S1005 of weak magnetic is iron ore concentrate, iron ore concentrate
Yield be 6.19%, Fe grade is 60.0%, TiO2Content is 4.21%, the Fe rate of recovery 29% and TiO2The rate of recovery is
5.6%；
The tailing of the weak magnetic roughing S1004 and tailings comprehensive yield of the selected S1005 of weak magnetic is 53.81%, Fe grade is
12.87%, TiO2Content is 7.47%, the Fe rate of recovery 54.10% and TiO2The rate of recovery is 87.34%, weak magnetic roughing S1004's
The tailing of tailing and the selected S1005 of weak magnetic feed spiral chute roughing S1006, and the concentrate of spiral chute roughing S1006 feeds spiral shell
The selected S1007 of chute is revolved, it is 17.31% that the concentrate of spiral chute essence S1007, which selects yield, Fe grade is 17.97%, TiO2Content
For 14.27%, the Fe rate of recovery 24.3% and TiO2The rate of recovery is 53.7%, and the concentrate of the selected S1007 of spiral chute feeds first
Section shaking table S1008 gravity treatment, the chats of first segment shaking table S1008 gravity treatment feed second segment shaking table S1009 gravity treatment, second segment shaking table
The chats of S1009 gravity treatment feeds third section shaking table S1010 gravity treatment, and the concentrate of three sections of table concentrations is all ilmenite concentrate, obtained titanium
The yield of concentrate is 4.24%, Fe grade is 30.23%, TiO2Content is 45%, the Fe rate of recovery 10.02% and TiO2The rate of recovery
It is 41.5%；
Weight magnetic draws the selected S1007 of tailing, spiral chute of the tailing of ore separators pre-selection S1001, spiral chute roughing S1006
Tailing and the tailings of three sections of shaking tables collectively form technique tailing, the yield of technique tailing is 89.57%, Fe grade is
8.71%, TiO2Content is 2.71%, the Fe rate of recovery 60.98% and TiO2The rate of recovery is 52.84%, and technique tailing throws tail processing.
In the illustrated embodiment, the vanadium titano-magnetite tailing that granularity is 0-1mm feeds weight magnetic first and draws ore separators, this kind choosing
Mine machine utilizes a kind of rotary barrel with a slope, magnetic mineral titanomagnetite and magnetic weaker ilmenite in the High-Field of 8000GS
It pretends and is attached to cylinder inboard wall under, rise with cylinder rotation and enter non-magnetic region after taking certain altitude to, in self gravity
Entered in concentrate with titanomagnetite and ilmenite useful under the flushing of flushing water, using this kind of ore separators compound magnetic force and
The effect of gravity realizes the high efficiente callback to titanomagnetite and ilmenite, iron recovery 84.2%, TiO2The rate of recovery is
91.8%, while concentrate yield only has 60%, whipping is up to 40%, and the treating capacity of subsequent job greatly reduces, reduces
The investment and running cost of subsequent job.
It is closed circuit with cyclone that ball milling is increased after weight magnetic draws ore separators pre-selection, is ground by ball milling and the closed circuit control of cyclone
Ore particle degree is that 0-200 mesh accounts for 85%, and which in turns increases the degrees of dissociation of valuable mineral, is conducive to downstream process processing, favorably
In the raising of the ore dressing quality of iron ore concentrate and ilmenite concentrate.
The process selected using weak magnetic roughing and weak magnetic after ball milling and cyclone are closed circuit, using two sections of continuous selected sides
Formula, obtains that yield is 6.19%, Fe grade is 60.0%, TiO2Content is 4.21%, the Fe rate of recovery 29% and TiO2The rate of recovery
For 5.6% iron ore concentrate, for vanadium titano-magnetite tailing recycling, iron concentrate grade and the rate of recovery are higher.
To the weak magnetic roughing after iron ore concentrate and the selected tailing of weak magnetic is selected, shaken using two sections of spiral chute gravity treatments and three sections
Bed gravity treatment process, first by the way of the selected continuous two sections of spiral chute gravity treatments of spiral chute roughing and spiral chute into
Row sorts, and spiral chute is adequately utilized to the preferable selectivity of coarse granule ore between 1mm-0.074mm, has dished out thick
The tailing of grain, improves the grade of concentrate, the concentrate yield of two sections of spiral chutes is 17.31%, Iron grade 17.97%,
TiO2Content is 14.27%, iron recovery 24.3% and TiO2The rate of recovery is 53.7%, gives mine TiO relative to it2Grade improves
6.8%, yield has dropped 36.5%, investment and operation that subsequent shaking table sorts greatly reduce while upgrading
Expense.
Using the process of two sections of spiral chute gravity treatments and three sections of table concentrations, dish out in continuous two sections of spiral chute gravity treatments
After the tailing of coarse grain in such a way that shaking table selects further whipping, it is opposite to 0.074mm or less that shaking table is adequately utilized in this
Thinner mineral have the characteristics that it is extraordinary selective, obtain yield be 4.24%, Iron grade 30.23%, TiO2Contain
Amount is 45%, iron recovery 10.02% and TiO2The ilmenite concentrate that the rate of recovery is 41.5%, obtains the ilmenite concentrate of higher quality.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, this
Field technical staff can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications belong to
Scope of protection of the claims of the invention.
Claims (7)
1. a kind of vanadium titano-magnetite tailing recycles technique, it is characterised in that: draw ore separators pre-selection, ball milling and eddy flow including weight magnetic
Device is closed circuit, weak magnetic roughing, weak magnetic are selected, spiral chute roughing, spiral chute are selected and three sections of shaking tables；
Granularity is that the vanadium titano-magnetite tailing of 0-1mm feeds weight magnetic drawing ore separators pre-selection, and weight magnetic draws the concentrate of ore separators pre-selection to give
Enter ball milling and cyclone it is closed circuit in cyclone, hydrocyclone sand feeds ball milling, and product returns to cyclone, eddy flow after ball milling ore grinding
The overflow that the 0-200 mesh of device accounts for 85% feeds weak magnetic roughing, and the concentrate of weak magnetic roughing feeds that weak magnetic is selected, the selected concentrate of weak magnetic
For iron ore concentrate；
The selected tailing of the tailing and weak magnetic of weak magnetic roughing feeds spiral chute roughing, and the concentrate of spiral chute roughing feeds spiral
Chute is selected, and the selected concentrate of spiral chute feeds first segment shaking table, and the chats of first segment shaking table feeds second segment shaking table, and second
The chats of section shaking table feeds third section shaking table, and the concentrate of three sections of shaking tables is ilmenite concentrate；
Weight magnetic draws the tailing of ore separators pre-selection, the selected tailing of tailing, spiral chute of spiral chute roughing and three sections of shaking tables
Tailing collectively forms technique tailing and throws tail.
2. vanadium titano-magnetite tailing according to claim 1 recycles technique, it is characterised in that: the heavy magnetic draws ore separators
The revolving speed of pre-selection is 13-17 revs/min.
3. vanadium titano-magnetite tailing according to claim 1 recycles technique, it is characterised in that: the heavy magnetic draws ore separators
Separation tube the gradient be 8-10 degree.
4. vanadium titano-magnetite tailing according to claim 1 recycles technique, it is characterised in that: the heavy magnetic draws ore separators
The magnetic field strength of pre-selection is 7200-8800GS.
5. vanadium titano-magnetite tailing according to claim 1 recycles technique, it is characterised in that: the magnetic of the weak magnetic roughing
Field intensity is 1100-1300GS.
6. vanadium titano-magnetite tailing according to claim 1 recycles technique, it is characterised in that: the selected magnetic of the weak magnetic
Field intensity is 900-1100GS.
7. vanadium titano-magnetite tailing described in one of -6 recycles technique according to claim 1, it is characterised in that: the vanadium titanium magnetic
The valuable mineral main component of iron ore mine is titanomagnetite and ilmenite, and the gangue mineral of vanadium titano-magnetite tailing is mainly angle
Amphibole, pyroxene and plagioclasite；Fe grade is 12.80% and TiO2Content be 4.6% vanadium titano-magnetite tail through claim
After vanadium titano-magnetite tailing described in one of 1-6 recycles process, obtaining Fe grade is 60.0%, TiO2Content is
4.21%, the Fe rate of recovery 29.0% and TiO2The iron ore concentrate and Fe grade that the rate of recovery is 5.6% are 30.23%, TiO2Content
For 45.0%, the Fe rate of recovery 10.02% and TiO2The ilmenite concentrate that the rate of recovery is 41.5%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221702A (en) * | 2020-09-23 | 2021-01-15 | 攀枝花市有为科技有限公司 | Method for recovering superfine-particle-size titanium concentrate from vanadium-titanium magnetite total tailings |
| CN112295727A (en) * | 2020-09-21 | 2021-02-02 | 攀枝花合润再生资源综合利用有限公司 | Method for extracting titanium concentrate and iron concentrate by using ilmenite tailings |
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