CN107442292B - A kind of upgrading drop silicon of silicate-type hematite-limonite rougher concentration top-ups choosing method - Google Patents

A kind of upgrading drop silicon of silicate-type hematite-limonite rougher concentration top-ups choosing method Download PDF

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Publication number
CN107442292B
CN107442292B CN201710765325.2A CN201710765325A CN107442292B CN 107442292 B CN107442292 B CN 107442292B CN 201710765325 A CN201710765325 A CN 201710765325A CN 107442292 B CN107442292 B CN 107442292B
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dosage
concentration
mine
flotation
limonite
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CN107442292A (en
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焦栋
刑志华
蔺朝晖
宋钊刚
蔡正鹏
温海滨
浦猛
詹忠杰
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Yuxi Dahongshan Mining Co Ltd
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Yuxi Dahongshan Mining Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/001Flotation agents
    • B03D1/018Mixtures of inorganic and organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00Specified effects produced by the flotation agents
    • B03D2201/007Modifying reagents for adjusting pH or conductivity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00Specified effects produced by the flotation agents
    • B03D2201/02Collectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00Specified effects produced by the flotation agents
    • B03D2201/06Depressants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00Specified materials treated by the flotation agents; specified applications
    • B03D2203/02Ores
    • B03D2203/04Non-sulfide ores

Abstract

The invention discloses a kind of upgrading of silicate-type hematite-limonite rougher concentration drop silicon to top-up choosing method, be put into roughing floatation equipment including adding water to size mixing silicate-type hematite-limonite rougher concentration, sequentially add collecting agent and inhibitor, supplementary catching agent, 5% concentration of PH regulator H2SO4Direct flotation is stirred, the roughing step of rougher concentration foam and rougher tailings is obtained;Above-mentioned rougher concentration foam is put into selected floatation equipment, the concentration step that inhibitor stirring direct flotation obtains selected concentrate and cleaner tailings is added;Above-mentioned cleaner tailings is put into and is scanned in equipment, be added collecting agent and/or and inhibitor, supplementary catching agent, 5% concentration of PH regulator H2SO4Stirring is scanned, and obtains scavenger concentrate and that scans tailing scans step.The present invention has the characteristics that technical maturity, index are stable, easy to operate, upgrading drop silicon effect is obvious, yield and the rate of recovery are high.

Description

A kind of upgrading drop silicon of silicate-type hematite-limonite rougher concentration top-ups choosing method
Technical field
The invention belongs to ferrous metal technical field of beneficiation, and in particular to a kind of technical maturity, index be stable, operation letter Silicon direct flotation drops in the upgrading of silicate-type hematite-limonite rougher concentration single, upgrading drop silicon effect is obvious, yield and the rate of recovery are high Method.
Background technique
Dahongshan iron ore is the iron ore mine of the state-of-the-art underground mining scale first in China, accounts for about China's iron ore deposit 18% Dahongshan formula iron ore be Volcanic-type mineral deposit Typical Representative, have hematite-limonite content accounting it is big, silicate and iron silicic acid Salt mineral content is high, microfine content is high, silicone content is high in iron ore concentrate, the high feature of iron content in tailing.Especially have only The features such as physical property of special " 234 ":
" 2 is low " --- Armco magnetic iron ratio is low, secondary concentrate grade is low;
" 3 is close " --- the density of main gangue mineral and iron mineral is close, surface chemical property is close, specific susceptibility It is close;
" 4 is high " --- silicate content is high, microfine content is high, silicone content is high in iron ore concentrate, iron content is high in tailing.
Hematite-limonite is a kind of iron ore with industrial utility value, and because its mineral disseminated grain size is thin, ore structures are multiple It is miscellaneous, it is larger to sort difficulty.Especially Dahongshan formula hematite-limonite, due to silicate and ferrosilicate mineral content height cut it is fine Grain content is high, leads to that iron concentrate grade is low, silicone content is high, seriously affects the pellet sintering machine smelting quality in later period.
Have at present to the typical ore-dressing technique of hematite-limonite: single Beneficiation flowsheet (including the ore dressings such as gravity treatment, magnetic separation and flotation Method), magnetic-float combined process flow, reduction roasting-magnetic separation-leaching process and chloridising roasting process etc..To fine-grained disseminated grain, weak magnetic Bloodstone, hematite-limonite and the red iron composite ore of magnet-, early stage generally mostly use gravity separation technology, due to its ore dressing processing capacity It is small, ore dressing grade is low, low yield and be gradually eliminated;Developed floatation process and high intensity magnetic separation process later, but for weak magnetic The hematite-limonite of property its sort technical indicator and do not reach satisfactory effect;Pick up low-grade, fine-grained disseminated grain red iron Mine and hematite-limonite, to reach purpose that is energy-saving and improving concentrate quality, ore grinding, sorting process generally use multistage rank Low intensity magnetic separation-reverse flotation connection can be used if you need to further increase the quality of magnetic concentrate in the principle process of section ore grinding, stage grading Close technique.But hematite-limonite thinner for disseminated grain size will drop silicon by low intensity magnetic separation-reverse flotation process integration upgrading, then need Want multistage ore grinding to dissociate gangue as far as possible, not only energy consumption and investment are big, but also the beneficiating efficiency and rate of recovery is lower, cost It is high, it is difficult to realize that the economy of silicate-type hematite-limonite sorts.In order to reduce cost and improve beneficiating efficiency, it is only reduced mill Mine, but lead to SiO2It is primarily present in coarse fraction mine, and this part coarse fraction mine is due to silicate mineral content height, it is difficult Obtain preferable as a result, being therefore the ore dressing problem place of current silicate-type hematite-limonite to be handled with reverse flotation.For red The ore dressing of limonite, it is domestic that roasting-magnetic separation work was mainly originally led to since production and technical indication is poor using roasting-magnetic separation Skill has just tapered off application early in the 1990s because at high cost;For vignite, also have using high intensity magnetic separation-just Joint flotation technology carries out ore dressing, the shortcomings that evade ferromagnetism poor selectivity, but there is also the Iron grade of flotation tailing is excessively high, The problem for causing the iron ore concentrate rate of recovery too low.Until today, although there are many works that can promote hematite-limonite aeneficiation effect Skill technology, but the ore-dressing technique for being related to ultra-fine grade silicate-type hematite-limonite is still a great problem.Therefore, one kind is explored Simply, reliably silicon method drops in the upgrading of silicate-type hematite-limonite rougher concentration, is to expand the application of silicate-type hematite-limonite Basic road, there is important value.
Summary of the invention
The purpose of the present invention is to provide a kind of technical maturity, index is stable, easy to operate, upgrading drop silicon effect is obvious, The upgrading drop silicon of yield and the high silicate-type hematite-limonite rougher concentration of the rate of recovery top-ups choosing method.
The present invention include roughing, it is selected, scan step, specifically include:
A, granularity -0.045mm accounting roughing: is not less than 55%, TFe grade 40~55%, SiO2Grade is not less than 10% Silicate-type hematite-limonite rougher concentration adds water to size mixing to concentration 30~40%, and then ore pulp is put into roughing floatation equipment, according to It is secondary be added collecting agent and inhibitor, supplementary catching agent, 5% concentration of PH regulator H2SO4Stirring carries out direct flotation, obtains roughing essence Mine foam and rougher tailings;
B, selected: the rougher concentration foam that step A obtains being put into selected floatation equipment, inhibitor stirring is added and carries out Direct flotation obtains selected concentrate and cleaner tailings;
C, scan: the cleaner tailings that step B is obtained, which is put into, to be scanned in equipment, and collecting agent is added and inhibitor, auxiliary are caught Receive the H of agent, 5% concentration of PH regulator2SO4Stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, by selected concentrate and is scanned Concentrate merges to obtain upgrading drop silicon concentrate.
The present invention is using technical maturity, direct floatation process easy to operate, suitable for handling fine grain teeth cloth ore, through " one Thick one single-minded sweeps " direct floatation process process cooperation selected combinations medicament, overcome conventional low intensity magnetic separation-reverse flotation joint work Skill solves magnetic iron ore high intensity magnetic separation-direct flotation process integration tail to the ore dressing problem of fine-grained disseminated grain silicate-type hematite-limonite The higher problem of mine Iron grade, so that the selected concentrate that silicate-type hematite-limonite rougher concentration obtains after direct flotation of the present invention TFe grade is greater than 55%, SiO after merging scavenger concentrate2Grade less than 7.5%, yield be greater than 55% and the rate of recovery be greater than 75%, and Reagent consumption is low, can substantially reduce the pollution to environment and reduce production cost.It is multiple by being carried out to same rougher concentration Repetitive test verifying, direct flotation method index stabilization of the invention, technical maturity.Therefore, the present invention has technical maturity, refers to Mark feature stable, easy to operate, that upgrading drop silicon effect is obvious, yield and the rate of recovery are high.
Detailed description of the invention
Fig. 1 is the two sections strong magnetic rougher concentration direct flotation flow diagram of the present invention;
Fig. 2 is the centrifugation rougher concentration direct flotation flow diagram of the present invention;
Fig. 3 is the three sections strong magnetic rougher concentration direct flotation flow diagram for being the present invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but is not subject in any way to the present invention Limitation, based on present invention teach that made any changes and modifications, all belong to the scope of protection of the present invention.
As shown in Figure 1,2 and 3, the present invention include roughing, it is selected, scan step, specifically include:
A, granularity -0.045mm accounting roughing: is not less than 55%, TFe grade 40~55%, SiO2Grade is not less than 10% Silicate-type hematite-limonite rougher concentration adds water to size mixing to concentration 30~40%, and then ore pulp is put into roughing floatation equipment, according to It is secondary be added collecting agent and inhibitor, supplementary catching agent, 5% concentration of PH regulator H2SO4Stirring carries out direct flotation, obtains roughing essence Mine foam and rougher tailings;
B, selected: the rougher concentration foam that step A obtains being put into selected floatation equipment, inhibitor stirring is added and carries out Direct flotation obtains selected concentrate and cleaner tailings;
C, scan: the cleaner tailings that step B is obtained, which is put into, to be scanned in equipment, and collecting agent is added and inhibitor, auxiliary are caught Receive the H of agent, 5% concentration of PH regulator2SO4Stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, by selected concentrate and is scanned Concentrate merges to obtain upgrading drop silicon concentrate.
What the step C obtained scan, and tailing returns merges progress with the silicate-type hematite-limonite rougher concentration of step A Water is added to size mixing.
The collecting agent is fatty acid, modified fat acid, petroleum-sulfonate, LPA-1 and/or LPB-7, the inhibitor For cornstarch, tapioca or AD-1, the supplementary catching agent is terpenic oil or NS-1.
According to flotation to the dry mine meter of mine in the step A: the dosage of LPA-1 is the use of 350~550g/t, LPB-7 Amount is 450~750g/t, the dosage of AD-1 is 500~700g/t, the H that the dosage of NS-1 is 200~300g/t, 5% concentration2SO4 Dosage be 4~6ml/t.
According to flotation to the dry mine meter of mine in the step B: the dosage of AD-1 is 250~450g/t.
According to flotation to the dry mine meter of mine in the step C: the dosage of LPB-7 is the dosage of 200~500g/t, AD-1 Dosage for 130~220g/t, NS-1 is the H of 50~120g/t, 5% concentration2SO4Dosage be 2~4ml/t.
The silicate-type hematite-limonite rougher concentration includes that granularity -0.045mm accounting is not small not less than 55%, TFe grade In 43%, SiO2Grade is not less than 18% two sections of silicate-type hematite-limonite strong magnetic rougher concentrations;Granularity -0.045mm accounting is not It is not less than 50%, SiO less than 62%, TFe grade2Silicate-type hematite-limonite of the grade not less than 10% is centrifuged rougher concentration;Grain Degree -0.045mm accounting is not less than 40%, SiO not less than 67%, TFe grade2Grade is not less than 18% silicate-type hematite-limonite Three sections strong magnetic rougher concentration.
According to flotation to the dry mine meter of mine in the step A of two sections of the silicate-type hematite-limonite strong magnetic rougher concentrations: The dosage of LPA-1 is 450~550g/t, the dosage of LPB-7 is 450~550g/t, the dosage of AD-1 is 500~700g/t, NS- 1 dosage is the H of 200~300g/t, 5% concentration2SO4Dosage be 4~6ml/t;According to flotation to the dry of mine in the step B Mine meter: the dosage of AD-1 is 250~350g/t;According to flotation to the dry mine meter of mine in the step C: the dosage of LPA-1 Dosage for 100~150g/t, LPB-7 is 200~300g/t, the dosage of AD-1 is 130~180g/t, the dosage of NS-1 is 80 The H of~120g/t, 5% concentration2SO4Dosage be 2~4ml/t.
According to flotation to the dry mine meter of mine in the step A of the silicate-type hematite-limonite centrifugation rougher concentration: LPB-7 Dosage be 650~750g/t, the dosage of AD-1 is 500~700g/t, the dosage of NS-1 is 200~300g/t, 5% concentration H2SO4Dosage be 4~6ml/t;According to flotation to the dry mine meter of mine in the step B: the dosage of AD-1 is 350~450g/ t;According to flotation to the dry mine meter of mine in the step C: the dosage of LPB-7 is 400~500g/t, the dosage of AD-1 is 130 The dosage of~180g/t, NS-1 is the H of 80~120g/t, 5% concentration2SO4Dosage be 2~4ml/t.
According to flotation to the dry mine meter of mine in the step A of three sections of the silicate-type hematite-limonite strong magnetic rougher concentrations: The dosage of LPA-1 is 350~450g/t, the dosage of LPB-7 is 450~550g/t, the dosage of AD-1 is 500~700g/t, NS- 1 dosage is the H of 200~300g/t, 5% concentration2SO4Dosage be 4~6ml/t;According to flotation to the dry of mine in the step B Mine meter: the dosage of AD-1 is 250~350g/t;According to flotation to the dry mine meter of mine in the step C: the dosage of LPB-7 The H that dosage for 200~300g/t, AD-1 is 170~220g/t, the dosage of NS-1 is 50~100g/t, 5% concentration2SO4Use Amount is 2~4ml/t.
Mixing time is 3~6min after mixing time is 3~6min after the LPA-1 is added, LPB-7 is added, AD-1 adds Enter the H that rear mixing time is 6~10min, mixing time is 3~6min, 5% concentration after NS-1 addition2SO4Mixing time after addition For 1~4min.
Experimental example 1:
Chemical property is carried out using the iron ore concentrate that three kinds of roughing methods obtain to Dahongshan iron ore silicate-type hematite-limonite Analysis such as table 1, grain size analysis such as table 2.
1 rougher concentration chemical property (%) of table
From table 1 it follows that the iron mineral of 3 kinds of samples is mainly hematite-limonite, magnetic iron content is few, especially three choosings Three sections of high intensity magnetic minerals of factory are practically free of Armco magnetic iron, this increases difficulty to the reprocessing of hematite-limonite sections concentrate.Three kinds of samples In silicone content it is higher, cause the contaminant overstandard of concentrate.
2 rougher concentration granularity (%) of table
It can be seen that the SiO in 3 kinds of samples from the granularity distribution result in table 22Grade is up to 30% in coarse grain level segment, This part coarse fraction silicate mineral content is high, it is difficult to be handled with reverse flotation, need fine grinding mine that could obtain the preferable of reverse flotation Effect, while this part iron content is not high.
Embodiment 1
" one thick one single-minded sweep " direct flotation, step are carried out using the two sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 35% two sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 600g/t of the LPA-1 and 500g/t of 500g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 250g/t, 5ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 300g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 125g/t's The LPB-7 collecting agent and the AD-1 inhibitor of 150g/t of LPA-1 and 250g/t, the NS-1 supplementary catching agent of 100g/t, 3ml/t 5% concentration H2SO4It is scanned as the stirring of PH regulator, obtains scavenger concentrate and scan tailing, by selected concentrate and scan essence Mine merges to obtain upgrading drop silicon concentrate.
Above-mentioned direct flotation result such as table 3.
Magnetic rougher concentration direct flotation result 1(% 3 two sections of table strong)
Embodiment 2
" one thick one single-minded sweep " direct flotation, step are carried out using the two sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 40% two sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 600g/t of the LPA-1 and 450g/t of 550g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 300g/t, 6ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 350g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 150g/t's The LPB-7 collecting agent and the AD-1 inhibitor of 180g/t of LPA-1 and 250g/t, the NS-1 supplementary catching agent of 80g/t, 2ml/t 5% concentration H2SO4It is scanned as the stirring of PH regulator, obtains scavenger concentrate and scan tailing, by selected concentrate and scan essence Mine merges to obtain upgrading drop silicon concentrate.
Above-mentioned direct flotation result such as table 4.
Magnetic rougher concentration direct flotation result 2(% 4 two sections of table strong)
Embodiment 3
" one thick one single-minded sweep " direct flotation, step are carried out using the two sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 30% two sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 500g/t of the LPA-1 and 550g/t of 450g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 200g/t, 4ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 250g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 100g/t's The LPB-7 collecting agent and the AD-1 inhibitor of 130g/t of LPA-1 and 300g/t, the NS-1 supplementary catching agent of 120g/t, 4ml/t 5% concentration H2SO4It is scanned as the stirring of PH regulator, obtains scavenger concentrate and scan tailing, by selected concentrate and scan essence Mine merges to obtain upgrading drop silicon concentrate.
Above-mentioned direct flotation result such as table 5.
Magnetic rougher concentration direct flotation result 3(% 5 two sections of table strong)
Embodiment 4
" one thick one single-minded sweep " direct flotation is carried out using the centrifugation roughing iron ore concentrate in experimental example 1 as raw ore, steps are as follows:
S100: adding water to size mixing to concentration 35% centrifugation roughing iron ore concentrate, then ore pulp be put into roughing floatation equipment, Successively the LPB-7 collecting agent of 700g/t, the AD-1 inhibitor of 600g/t, 250g/t is added in the dry mine meter according to flotation to mine 5% concentration H of NS-1 supplementary catching agent, 5ml/t2SO4As the agitated carry out direct flotation of PH regulator, rougher concentration foam is obtained And rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 400g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 450g/t's LPB-7 collecting agent, the AD-1 inhibitor of 150g/t, the NS-1 supplementary catching agent of 100g/t, 3ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 6.
Table 6 is centrifuged rougher concentration direct flotation result 1(%)
Embodiment 5
" one thick one single-minded sweep " direct flotation is carried out using the centrifugation roughing iron ore concentrate in experimental example 1 as raw ore, steps are as follows:
S100: adding water to size mixing to concentration 30% centrifugation roughing iron ore concentrate, then ore pulp be put into roughing floatation equipment, Successively the LPB-7 collecting agent of 650g/t, the AD-1 inhibitor of 700g/t, 300g/t is added in the dry mine meter according to flotation to mine 5% concentration H of NS-1 supplementary catching agent, 6ml/t2SO4As the agitated carry out direct flotation of PH regulator, rougher concentration foam is obtained And rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 350g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 500g/t's LPB-7 collecting agent, the AD-1 inhibitor of 130g/t, the NS-1 supplementary catching agent of 80g/t, 2ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 7.
Table 7 is centrifuged rougher concentration direct flotation result 2(%)
Embodiment 6
" one thick one single-minded sweep " direct flotation is carried out using the centrifugation roughing iron ore concentrate in experimental example 1 as raw ore, steps are as follows:
S100: adding water to size mixing to concentration 40% centrifugation roughing iron ore concentrate, then ore pulp be put into roughing floatation equipment, Successively the LPB-7 collecting agent of 750g/t, the AD-1 inhibitor of 500g/t, 200g/t is added in the dry mine meter according to flotation to mine 5% concentration H of NS-1 supplementary catching agent, 4ml/t2SO4As the agitated carry out direct flotation of PH regulator, rougher concentration foam is obtained And rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 450g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 400g/t's LPB-7 collecting agent, the AD-1 inhibitor of 180g/t, the NS-1 supplementary catching agent of 120g/t, 4ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 8.
Table 8 is centrifuged rougher concentration direct flotation result 3(%)
Embodiment 7
" one thick one single-minded sweep " direct flotation, step are carried out using the three sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 35% three sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 600g/t of the LPA-1 and 500g/t of 400g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 250g/t, 5ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 300g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 250g/t's LPB-7 collecting agent, the AD-1 inhibitor of 200g/t, the NS-1 supplementary catching agent of 75g/t, 3ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 9.
Magnetic rougher concentration direct flotation result 1(% 9 three sections of table strong)
Embodiment 8
" one thick one single-minded sweep " direct flotation, step are carried out using the three sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 30% three sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 500g/t of the LPA-1 and 500g/t of 350g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 200g/t, 4ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 250g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 200g/t's LPB-7 collecting agent, the AD-1 inhibitor of 220g/t, the NS-1 supplementary catching agent of 50g/t, 2ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 10.
Magnetic rougher concentration direct flotation result 2(% 10 3 sections of table strong)
Embodiment 9
" one thick one single-minded sweep " direct flotation, step are carried out using the three sections strong magnetic roughing iron ore concentrate in experimental example 1 as raw ore It is as follows:
S100: add water to size mixing to concentration 40% three sections strong magnetic roughing iron ore concentrate, ore pulp is then put into roughing floatation equipment In, the LPB-7 collecting agent and 700g/t of the LPA-1 and 450g/t of 450g/t is successively added to the dry mine meter of mine according to flotation AD-1 inhibitor, the NS-1 supplementary catching agent of 300g/t, 6ml/t 5% concentration H2SO4It top-ups as PH regulator is agitated Choosing, obtains rougher concentration foam and rougher tailings;
S200: above-mentioned rougher concentration foam is put into selected floatation equipment, and the dry mine meter according to flotation to mine is added The agitated carry out direct flotation of the AD-1 inhibitor of 350g/t, obtains selected concentrate and cleaner tailings;
S300: above-mentioned cleaner tailings being put into and is scanned in equipment, and the dry mine meter according to flotation to mine is added 300g/t's LPB-7 collecting agent, the AD-1 inhibitor of 170g/t, the NS-1 supplementary catching agent of 100g/t, 4ml/t 5% concentration H2SO4As PH Regulator stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, and selected concentrate and scavenger concentrate are merged to obtain upgrading drop Silicon concentrate.
Above-mentioned direct flotation result such as table 11.
Magnetic rougher concentration direct flotation result 3(% 11 3 sections of table strong)

Claims (9)

  1. The choosing method 1. a kind of upgrading drop silicon of silicate-type hematite-limonite rougher concentration top-ups, it is characterised in that including roughing, essence It selects, scan step, specifically include:
    A, roughing: the silicate-type hematite-limonite rougher concentration is Dahongshan formula hematite-limonite, by granularity -0.045mm accounting Not less than 55%, TFe grade 40 ~ 55%, SiO2Grade not less than 10% silicate-type hematite-limonite rougher concentration add water size mixing to Then ore pulp is put into roughing floatation equipment by concentration 30 ~ 40%, sequentially add collecting agent and inhibitor, supplementary catching agent, pH The H of 5% concentration of regulator2SO4Stirring carries out direct flotation, obtains rougher concentration foam and rougher tailings;The collecting agent is fat Acid, modified fat acid, one or more of in LPA-1, LPB-7, the inhibitor is cornstarch, tapioca or AD-1, institute Stating supplementary catching agent is terpenic oil or NS-1;
    B, selected: the rougher concentration foam that step A obtains being put into selected floatation equipment, inhibitor stirring is added and top-ups Choosing, obtains selected concentrate and cleaner tailings;The inhibitor is cornstarch, tapioca or AD-1;
    C, scan: the cleaner tailings that step B is obtained, which is put into, to be scanned in equipment, be added collecting agent and inhibitor, supplementary catching agent, The H of 5% concentration of pH regulator2SO4Stirring is scanned, and is obtained scavenger concentrate and is scanned tailing, the collecting agent is fatty acid, changes Property fatty acid, one or more of in LPA-1, LPB-7, the inhibitor is cornstarch, tapioca or AD-1, the auxiliary Collecting agent is terpenic oil or NS-1;Selected concentrate and scavenger concentrate are merged to obtain upgrading drop silicon concentrate.
  2. 2. upgrading drop silicon top-ups choosing method according to claim 1, it is characterised in that the step C obtained, which scan tailing, returns It returns to merge with the silicate-type hematite-limonite rougher concentration of step A and carries out that water is added to size mixing.
  3. 3. upgrading drop silicon top-ups choosing method according to claim 1, it is characterised in that according to flotation to mine in the step A Dry mine meter: the dosage of LPA-1 is 350 ~ 550g/t, the dosage of LPB-7 is 450 ~ 750g/t, the dosage of AD-1 be 500 ~ The dosage of 700g/t, NS-1 are the H of 200 ~ 300g/t, 5% concentration2SO4Dosage be 4 ~ 6ml/t;According to flotation in the step B To the dry mine meter of mine: the dosage of AD-1 is 250 ~ 450g/t.
  4. 4. upgrading drop silicon top-ups choosing method according to claim 1, it is characterised in that according to flotation to mine in the step C Dry mine meter: the dosage of LPB-7 is 200 ~ 500g/t, the dosage of AD-1 is 130 ~ 220g/t, the dosage of NS-1 is 50 ~ 120g/ T, the H of 5% concentration2SO4Dosage be 2 ~ 4ml/t.
  5. 5. upgrading drop silicon top-ups choosing method according to claim 1, it is characterised in that the silicate-type hematite-limonite roughing Concentrate includes that granularity -0.045mm accounting is not less than 55%, TFe grade not less than 43%, SiO2Grade is not less than 18% silicate Two sections of type hematite-limonite strong magnetic rougher concentrations;Or granularity -0.045mm accounting is not less than 50%, SiO not less than 62%, TFe grade2 Silicate-type hematite-limonite of the grade not less than 10% is centrifuged rougher concentration;Or granularity -0.045mm accounting is not less than 67%, TFe product Position is not less than 40%, SiO2Grade is not less than 18% three sections of silicate-type hematite-limonite strong magnetic rougher concentrations.
  6. 6. upgrading drop silicon top-ups choosing method according to claim 5, it is characterised in that two sections of the silicate-type hematite-limonite According to flotation to the dry mine meter of mine in the step A of strong magnetic rougher concentration: the dosage of LPA-1 is the use of 450 ~ 550g/t, LPB-7 Amount be 450 ~ 550g/t, the H that the dosage of AD-1 is 500 ~ 700g/t, the dosage of NS-1 is 200 ~ 300g/t, 5% concentration2SO4Use Amount is 4 ~ 6ml/t;According to flotation to the dry mine meter of mine in the step B: the dosage of AD-1 is 250 ~ 350g/t;The C step According to flotation to the dry mine meter of mine in rapid: the dosage of LPA-1 is 100 ~ 150g/t, the dosage of LPB-7 be 200 ~ 300g/t, The H that the dosage of AD-1 is 130 ~ 180g/t, the dosage of NS-1 is 80 ~ 120g/t, 5% concentration2SO4Dosage be 2 ~ 4ml/t.
  7. 7. upgrading drop silicon top-ups choosing method according to claim 5, it is characterised in that the silicate-type hematite-limonite centrifugation According to flotation to the dry mine meter of mine in the step A of rougher concentration: the dosage of LPB-7 is 650 ~ 750g/t, the dosage of AD-1 is 500 ~ 700g/t, NS-1 dosage be 200 ~ 300g/t, 5% concentration H2SO4Dosage be 4 ~ 6ml/t;In the step B according to Dry mine meter of the flotation to mine: the dosage of AD-1 is 350 ~ 450g/t;According to flotation to the dry mine meter of mine in the step C: The dosage of LPB-7 is 400 ~ 500g/t, the dosage of AD-1 is 130 ~ 180g/t, the dosage of NS-1 is 80 ~ 120g/t, 5% concentration H2SO4Dosage be 2 ~ 4ml/t.
  8. 8. upgrading drop silicon top-ups choosing method according to claim 5, it is characterised in that three sections of the silicate-type hematite-limonite According to flotation to the dry mine meter of mine in the step A of strong magnetic rougher concentration: the dosage of LPA-1 is the use of 350 ~ 450g/t, LPB-7 Amount be 450 ~ 550g/t, the H that the dosage of AD-1 is 500 ~ 700g/t, the dosage of NS-1 is 200 ~ 300g/t, 5% concentration2SO4Use Amount is 4 ~ 6ml/t;According to flotation to the dry mine meter of mine in the step B: the dosage of AD-1 is 250 ~ 350g/t;The C step According to flotation to the dry mine meter of mine in rapid: the dosage of LPB-7 is 200 ~ 300g/t, the dosage of AD-1 is 170 ~ 220g/t, NS- 1 dosage is the H of 50 ~ 100g/t, 5% concentration2SO4Dosage be 2 ~ 4ml/t.
  9. 9. being top-uped choosing method according to claim 6,7 or 8 upgradings drop silicon, it is characterised in that the LPA-1 is stirred after being added Time is that mixing time is that mixing time is that 6 ~ 10min, NS-1 are added after 3 ~ 6min, AD-1 are added after 3 ~ 6min, LPB-7 are added Mixing time is the H of 3 ~ 6min, 5% concentration afterwards2SO4Mixing time is 1 ~ 4min after addition.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1608738A (en) * 2003-10-24 2005-04-27 李艳军 Positive floatation of iron with sulfonate
CN101234366A (en) * 2007-07-31 2008-08-06 中南大学 Reverse flotation iron increase and silicon removing method for refractory limonite
CN102698876A (en) * 2012-05-14 2012-10-03 武汉理工大学 Method for separating roasted iron core and jade in floatation mode through cation combined collecting agents
CN103357500A (en) * 2013-07-17 2013-10-23 内蒙古科技大学 Ore-dressing method for recovering iron from Bayan Obo mine tailing
CN103691566A (en) * 2013-12-17 2014-04-02 广西大学 Method for performing flotation separation on garnet from magnetic separation brown iron ore concentrate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1608738A (en) * 2003-10-24 2005-04-27 李艳军 Positive floatation of iron with sulfonate
CN101234366A (en) * 2007-07-31 2008-08-06 中南大学 Reverse flotation iron increase and silicon removing method for refractory limonite
CN102698876A (en) * 2012-05-14 2012-10-03 武汉理工大学 Method for separating roasted iron core and jade in floatation mode through cation combined collecting agents
CN103357500A (en) * 2013-07-17 2013-10-23 内蒙古科技大学 Ore-dressing method for recovering iron from Bayan Obo mine tailing
CN103691566A (en) * 2013-12-17 2014-04-02 广西大学 Method for performing flotation separation on garnet from magnetic separation brown iron ore concentrate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
褐铁矿与脉石矿物浮选分离试验及机理研究;谢兴中;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20120131;第8-10页

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