CN109954577A - Titanomagnetite ilmenite ore-dressing technique - Google Patents
Titanomagnetite ilmenite ore-dressing technique Download PDFInfo
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- CN109954577A CN109954577A CN201910246325.0A CN201910246325A CN109954577A CN 109954577 A CN109954577 A CN 109954577A CN 201910246325 A CN201910246325 A CN 201910246325A CN 109954577 A CN109954577 A CN 109954577A
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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
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Abstract
The invention belongs to technical field of beneficiation, provide a kind of titanomagnetite ilmenite ore-dressing technique, including flotation, desulfurization cleaner flotation and titanium flotation are swept in three sections of broken closed circuit with big granularity dry separation process, high pressure roller mill and particulate dry-dressing machine, the sub- techniques of iron ore dressing, high intensity magnetic separation, two sections of shaking tables, desulfurization rough floatation, desulfurization.By three sections of broken big granularity dry separation and high pressure roller mill and particulate dry-dressing machine with big granularity dry separation process it is closed circuit in particulate dry-dressing machine, the barren rock that it is 68% in addition to yield that two sections of dry separation, which are got rid of, the treating capacity of subsequent ore grinding, sorting operation is greatly reduced, energy consumption and dielectric dissipation, save the cost are reduced；Flotation is swept by desulfurization rough floatation, desulfurization and desulfurization cleaner flotation carries out desulfurization process.Iron content, the lower titanomagnetite of titanium and ilmenite are handled with the technique, can get the higher iron ore concentrate of grade and ilmenite concentrate.
Description
Technical field
The invention belongs to technical field of beneficiation, more particularly to a kind of titanomagnetite ilmenite ore-dressing technique.
Background technique
Titanomagnetite and ilmenite are a kind of important iron ores and titanium ore resource, and especially for titanium, source is mainly
It is this ore.The main useful metal of this kind of ore is iron and titanium, and iron-content is not generally high, and most of is 12%-20%
Between, TiO2Content is generally between 2%-5%, due to titanium mainly as advanced alloy raw material in national defense industry, aircraft industry
The price of middle extensive application, ilmenite concentrate is higher, so this ore not high for raw ore Iron grade, comprehensive recovery of iron and titanium are just
Seem more necessary.
For titanomagnetite generally all with ilmenite association, two kinds of mineral are in connection growing state when coarse grain.This kind of ore iron
Occurrence status it is complex, the iron being distributed in titanomagnetite is generally 50% or so, and rest part is mainly with ilmenite, vacation
As the form of bloodstone, red (brown) iron ore and ferrosilite exists.The occurrence form of titanium is equally more dispersed in ore, about 2/3
Titanium exists in the form of ilmenite, and then preservation is in titanomagnetite and silicates mineral for remaining, and preservation is in titanomagnetite
TiO2It is general to enter iron ore concentrate together in company with titanomagnetite.Also contain a certain amount of pyrite in China, general this kind of ore
And chalcopyrite, so its sulfur content is higher, this part sulphur easily enters in final ilmenite concentrate with flotation, influences the matter of ilmenite concentrate
Amount and price.From the point of view of ore disseminated grain size, ore dissociate granularity it is fine, grinding particle size need to reach -200 mesh account for about 85% with
On.
From above analysis as can be seen that the general characteristic of this ore is fine disseminated grain size, iron mineral and titanium mineral
Complicated composition, raw ore iron-content is low, and the iron proportion in the titanomagnetite of Yi Huishou is not high, and raw ore titaniferous amount is high, part
Titanium can enter in iron ore concentrate, and sulfur-bearing is relatively high in raw ore.This ore to obtain the grade and the rate of recovery of higher iron, titanium
Grade and the rate of recovery need all raw ores entering mill, and generally require to the high efficiente callback of nonmagnetic valuable mineral extremely complex
Magnetic separation-Gravity separation flotation flowsheet, this is not high for head grade, for this kind of fine mineral of granularity, often energy consumption, medium,
Reagent consumption is especially high, and beneficiation cost is especially high, results even in and factory is selected to lose money.So we it is necessary to develop it is a kind of can production
Two kinds of high-quality concentrate of titanium and iron, can effectively deviate from sulphur, and low energy consumption, and dielectric dissipation amount is small, the low titanium of beneficiation cost
Magnetic iron ore and ilmenite ore-dressing technique.
Summary of the invention
In order to solve the problems, such as above-mentioned existing technique of preparing, the present invention provides a kind of titanomagnetite ilmenite dressers
Skill, including three sections of broken closed circuit with big granularity dry separation process, high pressure roller mill and particulate dry-dressing machine, sub- techniques of iron ore dressing, high intensity magnetic separation,
Flotation, desulfurization cleaner flotation and titanium flotation are swept in two sections of shaking tables, desulfurization rough floatation, desulfurization；
Raw ore is broken with after big granularity dry-dressing machine process through three sections, and granularity is that the crushed product of 0-20mm feeds high pressure roller mill
With particulate dry-dressing machine it is closed circuit in high pressure roller mill, the product of the 0-5mm of high pressure roller mill feeds particulate dry-dressing machine, particulate dry-dressing machine
Dry separation middling recurrence high pressure roller mill forms closed circuit, and the dry separation concentrate of particulate dry-dressing machine feeds the sub- technique of iron ore dressing, the sub- work of iron ore dressing
The concentrate of skill is iron ore concentrate；
The tailing of the sub- technique of iron ore dressing feeds high intensity magnetic separation, and the concentrate of high intensity magnetic separation feeds first segment table concentration, and first segment shakes
The chats of bed gravity treatment feeds second segment table concentration；
The concentrate of two sections of table concentrations feeds desulfurization rough floatation, and the underflow concentrate of desulfurization rough floatation feeds desulfurization cleaner flotation,
The foam tailing of desulfurization rough floatation feeds desulfurization and sweeps flotation, and the concentrate that flotation is swept in the tailing of desulfurization cleaner flotation and desulfurization returns to desulfurization
Rough floatation；The concentrate of desulfurization cleaner flotation feeds titanium flotation, and the concentrate of titanium flotation is ilmenite concentrate；
The tailing of three sections of broken and big granularity dry separation process big granularity dry separation barren rocks and particulate dry-dressing machine constitutes dry type tail
Mine throws tail；The tailing of high intensity magnetic separation, two sections of table concentrations tailing, the tailing of flotation is swept in desulfurization and the tailing of titanium flotation collectively forms
Wet type tailing throws tail.
Preferably, the sub- technique of iron ore dressing includes first segment ball milling and cyclone is closed circuit, first segment high intensity magnetic separation, second segment
Ball milling with second segment cyclone is closed circuit, low intensity magnetic separation, the strong magnetic of second segment is scanned and column magnetic separator；
The dry separation concentrate of particulate dry-dressing machine feeds first segment ball milling and the closed circuit first segment ball milling of cyclone, first segment ball milling
Ore discharge returns to first segment ball milling to cyclone, the sand setting of cyclone, and the overflow that the 0-200 mesh of cyclone accounts for 60% feeds first segment
High intensity magnetic separation, the concentrate of first segment high intensity magnetic separation feed second segment ball milling and second segment cyclone it is closed circuit in second segment cyclone, the
The sand setting of two sections of cyclones feeds second segment ball milling, returns to second segment cyclone, second segment cyclone after second segment ball milling ore grinding
0-200 mesh account for 90% overflow and feed low intensity magnetic separation, the tailing of low intensity magnetic separation feeds the strong magnetic of second segment and scans, the concentrate of low intensity magnetic separation and
The concentrate that the strong magnetic of second segment is scanned feeds column magnetic separator, and the tailing of column magnetic separator returns to low intensity magnetic separation, and the concentrate of column magnetic separator is iron ore concentrate；
The tailing that the strong magnetic of tailing and second segment of first segment high intensity magnetic separation is scanned is the tailing of the sub- technique of iron ore dressing.
Further, the magnetic field strength of the first segment high intensity magnetic separation is 7200-8800GS, the magnetic field that the strong magnetic of second segment is scanned
Intensity is 5500-6600GS, and the magnetic field strength of low intensity magnetic separation is 1800-2200GS.
Preferably, the titanium flotation includes that titanium rough floatation, titanium sweep flotation and four titanium cleaner flotations；Titanium flotation is direct flotation,
The concentrate of desulfurization cleaner flotation feeds titanium rough floatation, and the underflow tailing of titanium rough floatation sweeps flotation, the froth concentrate of titanium rough floatation to titanium
First time titanium cleaner flotation is fed, the concentrate of first time titanium cleaner flotation gives second of titanium cleaner flotation, the concentrate of second of titanium cleaner flotation
Third time titanium cleaner flotation is fed, the concentrate of third time titanium cleaner flotation feeds the 4th titanium cleaner flotation；The bottom of 4th titanium cleaner flotation
Stream tailing feeds second of titanium cleaner flotation, and the underflow tailing of third time titanium cleaner flotation feeds first time titanium cleaner flotation, second of titanium
The froth concentrate that the underflow tailing of cleaner flotation, the underflow tailing of first time titanium cleaner flotation and titanium sweep flotation returns to titanium rough floatation；The
The concentrate of four titanium cleaner flotations is ilmenite concentrate；
Titanium sweep flotation tailing be titanium flotation tailing, be included into wet type tailing throw tail.
Further, per ton in the titanium rough floatation that PH regulator sulfuric acid 2150-2650g, collecting agent oxidation is added to mine
Paraffin soap 1350-1650g and foaming agent methoxyl group polypropylene glycol 45-55g.
Further, per ton in the first time titanium cleaner flotation that sulfuric acid 108-132g, second of titanium cleaner flotation is added to mine
In it is per ton give mine that sulfuric acid 90-110g is added, it is per ton in third time titanium cleaner flotation to give mine that sulfuric acid 72-8 8g, the 4th titanium essence is added
It is per ton in flotation that sulfuric acid 55-66g is added to mine.
Preferably, the magnetic field strength of the particulate dry-dressing machine is 9000-11000GS；The magnetic field strength of high intensity magnetic separation is 3600-
4500GS。
Preferably, the high pressure roller mill and particulate dry-dressing machine it is closed circuit in particulate dry-dressing machine using permanent formula dry-dressing machine is measured, do
Three kinds of concentrate, chats, tailing products are selected, position control of the permanent formula dry-dressing machine by the cutting plate of regulated quantity perseverance formula dry-dressing machine is measured
Chats yield keeps chats yield constant.
Preferably, per ton in the desulfurization rough floatation that PH regulator sulfuric acid 180-220g, collecting agent butyl xanthate is added to mine
90-110g and foaming agent 2# oil 18-22g；It is per ton in the desulfurization cleaner flotation that collecting agent butyl xanthate 55-66g is added to mine and rises
Infusion 2# oil 9-11g.
Preferably, the valuable mineral main component of the raw ore be titanomagnetite, ilmenite and martite, raw ore
Gangue mineral is mainly hornblend, pyroxene, plagioclasite, pyrite and chalcopyrite；Fe grade is 18.50%, TiO2Content be
2.85% and sulfur content be 0.52% raw ore after above-mentioned titanomagnetite ilmenite ore-dressing technique processing, obtaining Fe grade is
63.0%, TiO2Content be 3.0%, S content 0.15%, the Fe rate of recovery are 43.51%, TiO2The rate of recovery be 13.45% He
The iron ore concentrate and Fe grade of the S rate of recovery 3.69% are 21.5%, TiO2Content be 44.0%, S content 0.14%, Fe return
Yield is 2.41%, TiO2The rate of recovery be the 32.0% and S rate of recovery 0.56% ilmenite concentrate.
The present invention passes through three sections of broken big granularity dry separation and high pressure roller mill and particulate dry separation with big granularity dry separation process
Particulate dry-dressing machine during machine is closed circuit, the barren rock that it is 68% in addition to yield that two sections of dry separation, which are got rid of, greatly reduces subsequent ore grinding, sorts work
The treating capacity of industry reduces energy consumption and dielectric dissipation, save the cost；Flotation and desulfurization cleaner flotation are swept by desulfurization rough floatation, desulfurization
Carry out desulfurization process.Iron content, the lower titanomagnetite of titanium and ilmenite are handled with the technique, are by Fe grade
18.50%, TiO2Content be 2.85% and raw ore that sulfur content is 0.52%, can get Fe grade is 63.0%, S content
The 0.15% and Fe rate of recovery is 43.51% iron ore concentrate, while obtaining TiO2Content be 44.0%, S content 0.14% and TiO2
The rate of recovery be 32.0% ilmenite concentrate, the iron ore concentrate of acquisition and the S content of ilmenite concentrate are lower, and grade and the rate of recovery are higher, can
See that iron ore concentrate and ilmenite concentrate quality that technique of the invention handles titanomagnetite ilmenite and the rate of recovery promote significant effect.
Detailed description of the invention
Fig. 1 is titanomagnetite ilmenite ore-dressing technique embodiment flow diagram；
Fig. 2 is the sub- process flow diagram of iron ore dressing of titanomagnetite ilmenite ore-dressing technique embodiment；
Fig. 3 is the titanium flotation flowsheet schematic diagram of titanomagnetite ilmenite ore-dressing technique embodiment.
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.
Titanomagnetite ilmenite ore-dressing technique alternative embodiment process as shown in Figure 1, including three sections of broken and big granularities
Dry separation process S1001, high pressure roller mill and particulate dry-dressing machine is closed circuit, the sub- technique S1100 of iron ore dressing, high intensity magnetic separation S1004, two sections shake
Flotation S1009, desulfurization cleaner flotation S1008 and titanium flotation S1200 are swept in bed, desulfurization rough floatation S1007, desulfurization；
Raw ore Fe grade is 18.50%, TiO2Content be 2.85% and sulfur content is 0.52%, valuable mineral mainly at
It is divided into titanomagnetite, ilmenite and martite, gangue mineral is mainly the silicate minerals such as hornblend, pyroxene, plagioclasite
With the sulfide minerals such as pyrite, chalcopyrite；Raw ore is crushed at three sections with big granularity dry-dressing machine process S1001
The big granularity dry separation of 10000GS, through three sections of broken crushed products for being 0-20mm with granularity after big granularity dry-dressing machine process S1001
Feed high pressure roller mill and particulate dry-dressing machine it is closed circuit in high pressure roller mill S1002, the product of the 0-5mm of high pressure roller mill S1002 feeds
Particulate dry-dressing machine, particulate dry-dressing machine go out three kinds of concentrate, chats, tailing products using permanent formula dry-dressing machine S1003, i.e. dry separation is measured, lead to
The position control chats yield of the amount of overregulating perseverance formula dry-dressing machine S1003 cutting plate makes chats yield constant, measures permanent formula dry-dressing machine
The dry separation magnetic field strength of S1003 is 10000GS, and the dry separation middling recurrence high pressure roller mill S1002 for measuring permanent formula dry-dressing machine S1003 is formed
Closed circuit, the constant circulating load of high-pressure roller mill S1002 is 120%, and the yield for measuring the dry separation concentrate of permanent formula dry-dressing machine S1003 is
32%, Fe grade is 32.66%, TiO2Content be 5.08%, S content 0.88%, the Fe rate of recovery are 56.5%, TiO2Return
Yield is the 57.0% and S rate of recovery 54.0%, and the dry separation concentrate for measuring permanent formula dry-dressing machine S1003 feeds the sub- technique S1100 of iron ore dressing,
The concentrate of the sub- technique S1100 of iron ore dressing is iron ore concentrate, and iron ore concentrate yield is 12.78%, Fe grade is 63.0%, TiO2Content
For 3.0%, S content 0.15%, the Fe rate of recovery be 43.51%, TiO2The rate of recovery be the 13.45% and S rate of recovery 3.69%；
The tailing yield of the sub- technique S1100 of iron ore dressing is 19.22%, Fe grade is 12.51%, TiO2Content be
6.44%, S content 1.36%, the Fe rate of recovery are 13.0%, TiO2The rate of recovery be the 43.55% and S rate of recovery 50.31%, iron
The tailing of the sub- technique S1100 of ore dressing feeds high intensity magnetic separation S1004, and the magnetic field strength of high intensity magnetic separation S1004 is 4000GS, high intensity magnetic separation
The concentrate yield of S1004 is 15.20%, Fe grade is 9.53%, TiO2Content be 7.90%, S content 1.28%, Fe recycling
Rate is 7.83%, TiO2The rate of recovery be the 42.13% and S rate of recovery 37.42%, the concentrate of high intensity magnetic separation S1004 feeds first segment
Shaking table S1005 gravity treatment, the chats of first segment shaking table S1005 gravity treatment feed second segment shaking table S1006 gravity treatment, two sections of table concentrations
The yield of concentrate is 13.38%, Fe grade is 8.65%, TiO2Content be 8.50%, S content 1.20%, the Fe rate of recovery are
6.26%, TiO2The rate of recovery be the 39.9% and S rate of recovery 31.0%；
The concentrate of two sections of table concentrations feeds desulfurization rough floatation S1007, and PH regulator sulphur is added in desulfurization rough floatation S1007
Sour 200g/t is to mine, collecting agent butyl xanthate 100g/t to mine and foaming agent 2# oil 20g/t to mine, the bottom of desulfurization rough floatation S1007
Stream concentrate feeds desulfurization cleaner flotation S1008, and collecting agent butyl xanthate 60g/t is added in desulfurization cleaner flotation S1008 to mine and foaming agent
2# oil 10g/t is to mine, and the concentrate yield of desulfurization cleaner flotation S1008 is 10.5%, Fe grade is 6.88%, TiO2Content be
8.80%, S content 0.25%, the Fe rate of recovery are 3.9%, TiO2The rate of recovery be the 39.5% and S rate of recovery 5.05%, desulfurization is thick
The foam tailing of flotation S1007 feeds desulfurization and sweeps flotation S1009, and flotation S1009 is swept in the tailing of desulfurization cleaner flotation S1008 and desulfurization
Concentrate return desulfurization rough floatation S1007；The concentrate of desulfurization cleaner flotation S1008 feeds titanium flotation S1200, titanium flotation S1200's
Concentrate is ilmenite concentrate, and the yield of ilmenite concentrate is 2.07%, Fe grade is 21.5%, TiO2Content be 44.0%, S content
0.14%, the Fe rate of recovery is 2.41%, TiO2The rate of recovery be the 32.0% and S rate of recovery 0.56%；
Three sections of broken tails with the permanent formula dry-dressing machine S1003 of big granularity dry separation barren rock and amount of big granularity dry separation process S1001
Mine constitute dry type tailing, the index of dry type tailing be yield be 68%, Fe grade is 11.83%, TiO2Content be 1.8%, S
Content 0.35%, the Fe rate of recovery are 43.50%, TiO2The rate of recovery be the 43.0% and S rate of recovery 46.0%, dry type tailing throw
Tail；The tailing of high intensity magnetic separation S1004, the tailing of two sections of table concentrations, desulfurization sweep the tailing and titanium flotation S1200 of flotation S1009
Tailing collectively forms wet type tailing, and the yield of wet type tailing is 17.15%, Fe grade is 11.42%, TiO2Content be
1.92%, S content 1.51%, the Fe rate of recovery are 10.59%, TiO2The rate of recovery be the 11.55% and S rate of recovery 49.76%, it is wet
Formula tailing throws tail.
Fig. 1 embodiment is passed through while getting rid of most non magnetic barren rocks by big granularity dry separation and particulate dry separation
The high field intensity of 10000GS has recycled the titanomagnetite of most of magnetism, and the ilmenite with titanomagnetite association, weak magnetic
Martite, realize effective recycling to valuable mineral.The barren rock for being 68% in addition to yield is got rid of by two sections of dry separation, greatly
Reduce the treating capacity of subsequent ore grinding, sorting operation greatly, reduce energy consumption and dielectric dissipation, save the cost is lower ore dressing at
This and higher economic benefit are laid a good foundation.It increases high pressure roller mill and particulate dry separation is closed circuit, pass through the ultra-fine of high pressure roller mill
Broken effect considerably increases non magnetic ore and the big dissociation of magnetic mineral using the particulate dry separation of 0-5mm, is the large scale of dry separation
Whipping creates condition.The dry separation operation amount of can be used perseverance formula dry separation, ensure that the stable circulating load of high pressure roller mill operation, is
The stable operation of high pressure roller mill operation creates advantage.Using the process flow of high intensity magnetic separation and continuous two sections of shaking tables.?
Strong magnetic whipping is used before gravity treatment, has not only been sloughed the non-magnetic iron mineral in part in iron milltailings, has been reduced shaking table to mine
Mine amount saves the equipment investment expense and running cost of shaking table, reduces beneficiation cost, and further improve gravity treatment
To the TiO of mine2Content.The technique of continuous two sections of table concentrations and desulfurization flotation is used in the sub- technique of titanium ore dressing, using shaking
The titanium of bed gravity treatment, takes full advantage of the preferable selectivity that shaking table accounts for 90% subparticle to 0-200 mesh, tentatively improves titanium
Then content has sloughed most of sulfide in table concentrate by desulfurization flotation, avoid in titanium flotation sulfide with
Ilmenite enters ilmenite concentrate together, the pollution to ilmenite concentrate, and obtained ilmenite concentrate sulfur content is 0.14%, and sulfur reduction effect is especially bright
It is aobvious.By desulfurization flotation and titanium flotation, obtain that yield is 2.07%, Fe grade is 21.5%, TiO2Content be 44.0%,
S content 0.14%, the Fe rate of recovery are 2.41%, TiO2The rate of recovery be the 32.0% and S rate of recovery 0.56% ilmenite concentrate, titanium essence
The grade and the rate of recovery of mine are all higher, and the acquisition of this part ilmenite concentrate will greatly improve the benefit of entire ore dressing.
The sub- process flow of iron ore dressing of titanomagnetite ilmenite ore-dressing technique alternative embodiment as shown in Figure 2, the iron
The sub- technique S1100 of ore dressing includes first segment ball milling S1101 and cyclone S1102 is closed circuit, first segment high intensity magnetic separation S1103, second segment
Ball milling S1105 and second segment cyclone S1104 is closed circuit, low intensity magnetic separation S1106, the strong magnetic of second segment scan S1108 and column magnetic separator
S1107；
Particulate dry-dressing machine feeds first segment ball using permanent formula dry-dressing machine S1003, the dry separation concentrate of permanent formula dry-dressing machine S1003 is measured
S1101 and cyclone S1102 closed circuit first segment ball milling S1101 are ground, first segment ball milling S1101 ore discharge gives cyclone S1102, revolves
The sand setting for flowing device S1102 returns to first segment ball milling S1101, and the overflow that the 0-200 mesh of cyclone S1102 accounts for 60% feeds first segment
The magnetic field strength of high intensity magnetic separation S1103, first segment high intensity magnetic separation S1103 are 8000GS, and the concentrate yield of first segment high intensity magnetic separation S1103 is
16.26%, Fe grade is 55.3%, TiO2Content be 7.70%, S content 0.40%, the Fe rate of recovery are 48.59%, TiO2's
The rate of recovery be the 43.89% and S rate of recovery 12.50%, the concentrate of first segment high intensity magnetic separation S1103 feed second segment ball milling S1105 with
Second segment cyclone S1104 during second segment cyclone S1104 is closed circuit, the sand setting of second segment cyclone S1104 feed second segment
Ball milling S1105 returns to second segment cyclone S1104, the 0-200 of second segment cyclone S1104 after second segment ball milling S1105 ore grinding
The overflow that mesh accounts for 90% feeds low intensity magnetic separation S1106, and the magnetic field strength of low intensity magnetic separation S1106 is 2000GS, the tailing of low intensity magnetic separation S1106
It feeds the strong magnetic of second segment and scans S1108, the magnetic field strength that the strong magnetic of second segment scans S1108 is 6000GS；The essence of low intensity magnetic separation S1106
The concentrate that mine and the strong magnetic of second segment scan S1108 feeds column magnetic separator S1107, and the tailing of column magnetic separator S1107 returns to low intensity magnetic separation
The concentrate of S1106, column magnetic separator S1107 are iron ore concentrate；
The tailing that the tailing and the strong magnetic of second segment of first segment high intensity magnetic separation S1103 scans S1108 is the sub- technique of iron ore dressing
The tailing of S1100.
In Fig. 2 embodiment, the sub- technique of iron ore dressing using first segment high intensity magnetic separation, weak magnetic, the strong magnetic of second segment is scanned and magnetic separation
The process of column ensure that by the strong magnetic operation of high field intensity first segment to strongly magnetic mineral titanomagnetite after ore grinding, weak magnetic mineral
Effective recycling of martite；The weak magnetic that ensure that in the tailing in low intensity magnetic separation is scanned by the strong magnetic of the second segment of high field intensity
Effective recycling of the martite of property.It ensure that effective recycling of titanomagnetite by the low low intensity magnetic separation of field strength；Pass through magnetism
The comprehensive function of magnetic separation and the gravity treatment of column ensure that the comprehensive of the gravity treatment recycling to the magnetic separation recovery and martite of titanomagnetite
Recycling is closed, the big yield washing of column magnetic separator has also ensured the quality of iron ore concentrate.It ensure that in magnetic concentrate by the method for magnetic separation
It is not mixed into nonmagnetic sulphide ore, sulfur content 0.15% in iron ore concentrate meets strict demand of the domestic and international market to sulfur content.The
The magnetic field strength of one section of high intensity magnetic separation is 8000GS, and the magnetic field strength that the strong magnetic of second segment is scanned is 6000GS, and the magnetic field of low intensity magnetic separation is strong
Degree is 2000GS.Magnetic separation field strength is vertical gradually to be reduced, effectively with the gradually release to non magnetic ore, constantly to mention
The grade of high iron ore concentrate has ensured the quality of iron ore concentrate.The index of iron ore concentrate is yield 12.78%, Fe grade is 63.0%,
TiO2Content be 3.0%, S content 0.15%, the Fe rate of recovery are 43.51%, TiO2The rate of recovery be the 13.45% and S rate of recovery
3.69%, obtain more high-grade iron ore concentrate.
The titanium flotation flowsheet of titanomagnetite ilmenite ore-dressing technique alternative embodiment as shown in Figure 3, the titanium flotation
S1200 includes that titanium rough floatation S1201, titanium sweep flotation S1202 and four titanium cleaner flotations；Titanium flotation S1200 is direct flotation, desulfurization essence
The concentrate of flotation S1008 feeds titanium rough floatation S1201, be added in titanium rough floatation S1201 PH regulator sulfuric acid 2400g/t to mine,
Collecting agent oxidized paraffin wax soap 1500g/t is to mine and foaming agent methoxyl group polypropylene glycol 50g/t to mine, the bottom of titanium rough floatation S1201
It flows tailing and sweeps flotation S1202 to titanium, the froth concentrate of titanium rough floatation S1201 feeds first time titanium cleaner flotation S1203, first time titanium
Sulfuric acid 120g/t is added in cleaner flotation S1203 to mine, the concentrate of first time titanium cleaner flotation S1203 gives second of titanium cleaner flotation
Sulfuric acid 100g/t is added in S1204, second of titanium cleaner flotation S1204 to mine, the concentrate of second of titanium cleaner flotation S1204 feeds the
8 0g/t of sulfuric acid is added in titanium cleaner flotation S1205 three times, third time titanium cleaner flotation S1205 to mine, third time titanium cleaner flotation S1205
Concentrate feed the 4th titanium cleaner flotation S1206；Sulfuric acid 60g/t is added in 4th titanium cleaner flotation S1206 to mine；4th titanium
The underflow tailing of cleaner flotation S1206 feeds second of titanium cleaner flotation S1204, and the underflow tailing of third time titanium cleaner flotation S1205 is given
Enter first time titanium cleaner flotation S1203, the underflow of the underflow tailing, first time titanium cleaner flotation S1203 of second of titanium cleaner flotation S1204
The froth concentrate that tailing and titanium sweep flotation S1202 returns to titanium rough floatation S1201；The concentrate of 4th titanium cleaner flotation S1206 is titanium
Concentrate；
Titanium sweep flotation S1202 tailing be titanium flotation S1200 tailing, be included into wet type tailing throw tail.
In Fig. 3 embodiment, the tailing of each section of titanium cleaner flotation in titanium flotation is all made of upward upper level titanium cleaner flotation
The mode of return, the tailing that every section of titanium cleaner flotation returns increases the time of a titanium cleaner flotation, to considerably increase titanium
The rate of recovery of flotation.
Aforementioned three sections broken generally comprise with big granularity dry separation process coarse crushing, big granularity dry separation, in it is broken and fine crushing, raw ore passes through
Product feeds big granularity dry separation after coarse crushing, the concentrate of big granularity dry separation feed in it is broken, in broken product feed fine crushing, product fine crushing is
Crushed product；Big granularity dry separation barren rock constitutes one of the component part of dry type tailing.
Above-mentioned ' per ton to mine ' being previously mentioned refers to the ore weight for feeding this process, identical as '/t is to mine ' meaning.
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 (10)
1. a kind of titanomagnetite ilmenite ore-dressing technique, including three sections of broken and big granularity dry separation processes, it is characterised in that: also wrap
Include high pressure roller mill closed circuit with particulate dry-dressing machine, the sub- technique of iron ore dressing, high intensity magnetic separation, two sections of shaking tables, desulfurization rough floatation, desulfurization sweep it is floating
Choosing, desulfurization cleaner flotation and titanium flotation；
Raw ore is broken with after big granularity dry-dressing machine process through three sections, and the crushed product that granularity is 0-20mm feeds high pressure roller mill and thin
High pressure roller mill during grain dry-dressing machine is closed circuit, the product of the 0-5mm of high pressure roller mill feed particulate dry-dressing machine, the dry separation of particulate dry-dressing machine
Middling recurrence high pressure roller mill forms closed circuit, and the dry separation concentrate of particulate dry-dressing machine feeds the sub- technique of iron ore dressing, the sub- technique of iron ore dressing
Concentrate is iron ore concentrate；
The tailing of the sub- technique of iron ore dressing feeds high intensity magnetic separation, and the concentrate of high intensity magnetic separation feeds first segment table concentration, first segment shaking table weight
The chats of choosing feeds second segment table concentration；
The concentrate of two sections of table concentrations feeds desulfurization rough floatation, and the underflow concentrate of desulfurization rough floatation feeds desulfurization cleaner flotation, desulfurization
The foam tailing of rough floatation feeds desulfurization and sweeps flotation, and the concentrate that flotation is swept in the tailing of desulfurization cleaner flotation and desulfurization returns to desulfurization and slightly floats
Choosing；The concentrate of desulfurization cleaner flotation feeds titanium flotation, and the concentrate of titanium flotation is ilmenite concentrate；
Three sections of broken tailing composition dry type tailing throwings with the big granularity dry separation barren rock and particulate dry-dressing machine of big granularity dry separation process
Tail；The tailing of high intensity magnetic separation, two sections of table concentrations tailing, the tailing of flotation is swept in desulfurization and the tailing of titanium flotation collectively forms wet type
Tailing throws tail.
2. titanomagnetite ilmenite ore-dressing technique according to claim 1, it is characterised in that: the sub- technique packet of iron ore dressing
It includes first segment ball milling and cyclone is closed circuit, first segment high intensity magnetic separation, second segment ball milling and second segment cyclone are closed circuit, low intensity magnetic separation, the
Two sections strong magnetic is scanned and column magnetic separator；
The dry separation concentrate of particulate dry-dressing machine feeds first segment ball milling and the closed circuit first segment ball milling of cyclone, first segment ball milling ore discharge
To cyclone, the sand setting of cyclone returns to first segment ball milling, and the overflow that the 0-200 mesh of cyclone accounts for 60% feeds the strong magnetic of first segment
Choosing, the concentrate of first segment high intensity magnetic separation feed second segment ball milling and second segment cyclone it is closed circuit in second segment cyclone, second segment
The sand setting of cyclone feeds second segment ball milling, returns to second segment cyclone, the 0- of second segment cyclone after second segment ball milling ore grinding
The overflow that 200 mesh account for 90% feeds low intensity magnetic separation, and the tailing of low intensity magnetic separation feeds the strong magnetic of second segment and scans, the concentrate of low intensity magnetic separation and second
The concentrate that the strong magnetic of section is scanned feeds column magnetic separator, and the tailing of column magnetic separator returns to low intensity magnetic separation, and the concentrate of column magnetic separator is iron ore concentrate；
The tailing that the strong magnetic of tailing and second segment of first segment high intensity magnetic separation is scanned is the tailing of the sub- technique of iron ore dressing.
3. titanomagnetite ilmenite ore-dressing technique according to claim 1, it is characterised in that: the titanium flotation includes that titanium is thick
Flotation and four titanium cleaner flotations are swept in flotation, titanium；Titanium flotation is direct flotation, and the concentrate of desulfurization cleaner flotation feeds titanium rough floatation, and titanium is thick
The underflow tailing of flotation sweeps flotation to titanium, and the froth concentrate of titanium rough floatation feeds first time titanium cleaner flotation, first time titanium cleaner flotation
Concentrate give second of titanium cleaner flotation, the concentrate of second of titanium cleaner flotation feeds third time titanium cleaner flotation, third time titanium cleaner flotation
Concentrate feed the 4th titanium cleaner flotation；The underflow tailing of 4th titanium cleaner flotation feeds second of titanium cleaner flotation, third time titanium
The underflow tailing of cleaner flotation feeds first time titanium cleaner flotation, the underflow tailing of second of titanium cleaner flotation, first time titanium cleaner flotation
The froth concentrate that underflow tailing and titanium sweep flotation returns to titanium rough floatation；The concentrate of 4th titanium cleaner flotation is ilmenite concentrate；
Titanium sweep flotation tailing be titanium flotation tailing, be included into wet type tailing throw tail.
4. titanomagnetite ilmenite ore-dressing technique according to claim 1, it is characterised in that: the magnetic of the particulate dry-dressing machine
Field intensity is 9000-11000GS；The magnetic field strength of high intensity magnetic separation is 3600-4500GS.
5. titanomagnetite ilmenite ore-dressing technique according to claim 2, it is characterised in that: the first segment high intensity magnetic separation
Magnetic field strength is 7200-8800GS, and the magnetic field strength that the strong magnetic of second segment is scanned is 5500-6600GS, the magnetic field strength of low intensity magnetic separation
For 1800-2200GS.
6. titanomagnetite ilmenite ore-dressing technique according to claim 1, it is characterised in that: the high pressure roller mill and particulate
Particulate dry-dressing machine during dry-dressing machine is closed circuit goes out three kinds of concentrate, chats, tailing products using permanent formula dry-dressing machine, dry separation is measured, and measures permanent formula
Dry-dressing machine keeps chats yield constant by the position control chats yield of the cutting plate of regulated quantity perseverance formula dry-dressing machine.
7. titanomagnetite ilmenite ore-dressing technique according to claim 1, it is characterised in that: every in the desulfurization rough floatation
Sulfuric acid 180-220g, butyl xanthate 90-110g and 2# oil 18-22g is added to mine in ton；It is per ton in the desulfurization cleaner flotation to be added to mine
Butyl xanthate 55-66g and 2# oil 9-11g.
8. titanomagnetite ilmenite ore-dressing technique according to claim 3, it is characterised in that: per ton in the titanium rough floatation
Sulfuric acid 2150-2650g, oxidized paraffin wax soap 1350-1650g and methoxyl group polypropylene glycol 45-55g is added to mine.
9. titanomagnetite ilmenite ore-dressing technique according to claim 3, it is characterised in that: the first time titanium cleaner flotation
In it is per ton give mine that sulfuric acid 108-132g is added, it is per ton in second of titanium cleaner flotation to give mine that sulfuric acid 90-110g, third time titanium essence is added
It is per ton in flotation to give mine that sulfuric acid 72-8 8g is added, it is per ton in the 4th titanium cleaner flotation to give mine that sulfuric acid 55-66g is added.
10. titanomagnetite ilmenite ore-dressing technique described in one of -9 according to claim 1, it is characterised in that: the raw ore
Valuable mineral main component is titanomagnetite, ilmenite and martite, and the gangue mineral of raw ore is mainly hornblend, brightness
Stone, plagioclasite, pyrite and chalcopyrite；Fe grade is 18.50%, TiO2Content be 2.85% and sulfur content is 0.52%
After the raw ore processing of the titanomagnetite ilmenite ore-dressing technique described in one of claim 1-9, obtain Fe grade be 63.0%,
TiO2Content be 3.0%, S content 0.15%, the Fe rate of recovery are 43.51%, TiO2The rate of recovery be the 13.45% and S rate of recovery
3.69% iron ore concentrate and Fe grade is 21.5%, TiO2Content be 44.0%, S content 0.14%, the Fe rate of recovery are
2.41%, TiO2The rate of recovery be the 32.0% and S rate of recovery 0.56% ilmenite concentrate.
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