CN110508392A - A kind of floating sorting of the magnetic-of Long raise and method of comprehensive utilization - Google Patents
A kind of floating sorting of the magnetic-of Long raise and method of comprehensive utilization Download PDFInfo
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- CN110508392A CN110508392A CN201910839683.2A CN201910839683A CN110508392A CN 110508392 A CN110508392 A CN 110508392A CN 201910839683 A CN201910839683 A CN 201910839683A CN 110508392 A CN110508392 A CN 110508392A
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- sulphur
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- 238000007667 floating Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 178
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 103
- 229910052742 iron Inorganic materials 0.000 claims abstract description 88
- 239000005864 Sulphur Substances 0.000 claims abstract description 72
- 239000012141 concentrate Substances 0.000 claims abstract description 65
- 239000011593 sulfur Substances 0.000 claims abstract description 36
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 36
- 238000007885 magnetic separation Methods 0.000 claims abstract description 34
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 66
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 31
- 238000005188 flotation Methods 0.000 claims description 25
- 239000004088 foaming agent Substances 0.000 claims description 24
- 235000006408 oxalic acid Nutrition 0.000 claims description 22
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 20
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 claims description 12
- 239000008139 complexing agent Substances 0.000 claims description 9
- 239000012190 activator Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000006148 magnetic separator Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 2
- UGWKCNDTYUOTQZ-UHFFFAOYSA-N copper;sulfuric acid Chemical compound [Cu].OS(O)(=O)=O UGWKCNDTYUOTQZ-UHFFFAOYSA-N 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 description 8
- 230000023556 desulfurization Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 229910052683 pyrite Inorganic materials 0.000 description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 4
- 239000011028 pyrite Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 229910052635 ferrosilite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- 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
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of floating sorting of the magnetic-of Long raise and method of comprehensive utilization, ore grinding-low intensity magnetic separation is carried out to Long raise, obtain TFe grade>=64.0%, the weak magnetic separation iron concentrate of TS>=10.0%, floating sulphur roughing is carried out once to weak magnetic separation iron concentrate, once floating sulphur is selected, once floating sulphur is scanned, obtain TS grade>24.0%, TFe grade>60.0% high-ferrum sulfur ore concentrates, floating sulphur is fed to the floating sulphur tailing of the once purging selection of discharge and scans open circuit operation, coal separation dense media product of the Iron grade greater than 63.0% is obtained respectively and Iron grade is greater than 67.0%, the iron ore concentrate of TS content<1.1%, to TS grade>24.0% of acquisition, TFe grade>raw material of 60.0% high-ferrum sulfur ore concentrates as sulfuric acid plant's relieving haperacidity, and the sulfate slag after relieving haperacidity Iron ore concentrate sulfur reduction can be not only realized directly as qualified iron ore concentrate, but also realize the comprehensive utilization of resource, economic benefit, social benefit, obvious environment benefit.
Description
Technical field
The invention belongs to iron ore dressing technical fields, and in particular to a kind of sulphur of Long raise, iron sorting with it is comprehensive
Close the method for utilizing.
Background technique
With the development of Economic social environment, China is higher and higher to the quality requirement of iron ore concentrate, especially to iron ore concentrate
Middle sulfur content requires to be increasingly stringenter.Sulfur content in iron ore concentrate has critical influence to ironmaking and steel-making, raw to blast furnace
Production is also harmful, and sulphur emissions also result in very big pollution to environment.Therefore, the desulfurization of high-sulfur magnetic iron ore is an important times
Business can play important impetus to China's economic development and environmental protection therefore to answer strict control to enter miscellaneous in furnace iron ore concentrate
Matter sulfur content, generally requires TS < 0.40%.But for TS content between 8~15% Long raise (magnetic iron ore it
Sulphur occupation rate is greater than 90%) because desulfurization difficulty is big, general to require TS content being reduced to 2% or less and matching as blast furnace process
Material uses, as the iron ore concentrate TS content in Technology of Anqing main flow can be used as qualified iron ore concentrate less than 2%.
Containing sulfur minerals mainly have pyrite and magnetic iron ore in magnetic iron ore, and pyrite is not due to having magnetism, in magnetic separation
It is easy to separate with magnetic iron ore in journey, but magnetic iron ore is due to being easily accessible magnetic concentrate during magnetic separation with ferromagnetism, it is single
Magnetic separation is difficult to separate magnetic iron ore with magnetic iron ore.Therefore, the desulfurization of high-sulfur magnetic iron ore is difficult, main difficult in abjection magnetic Huang iron therein
Mine.All the time, magnetic iron ore and magnetic iron ore FLOTATION SEPARATION are all one of the key technology that high-sulfur magnetic iron ore faces, mine enterprise
The ore dressings worker such as industry, research institutions had once done numerous studies to similar mines, had obtained some phasic results.
It is that ore grinding-magnetic-floats combined process flow that magnetite concentrate sulfur reduction, which generallys use, i.e., first by raw ore ore grinding to suitable ore grinding
Granularity first throws tail with low intensity magnetic separation, obtains the magnetite concentrate of Iron grade qualification, then carry out floatation desulphurization to magnetite concentrate.This technique
When being main existence form in the form of pyrite for the sulphur in iron ore concentrate, the desulfurization effect of iron ore concentrate is fine；But for iron
Sulphur in concentrate mainly exists in the form of magnetic iron ore, and when sulfur content is up to 8~15%, desulfurization effect is often not satisfactory, difficult
Total sulphur content in iron ore concentrate is reduced to 2% or less.In addition, the froth pulp yield of flotation removing is big, but sulfur grade it is not high,
Iron grade is not also high, becomes " chicken ribs ", causes the waste of resource.
" high-sulfur magnetic iron ore floatation desulphurization technique and the machine that Chinese periodical " mineral products protection and utilization " the 5th phase in 2013 delivers
A reason present Research " text is thought: the desulfurization of high-sulfur magnetic iron ore is the big technical problem that steel industry faces for a long time, utilizes magnetic
The method of choosing, which separates magnetic iron ore with magnetic iron ore, to be nearly impossible, flotation be iron ore concentrate sulfur reduction most effective approach it
One.But in several floatation desulphurization methods of this article introduction, desulfurization flotation is passed through for the sulphur in 1.0% or so magnetite concentrate of sulfur-bearing
Also 0.45% or so can only be dropped to, and fairly obvious is also not for the sulphur sulfur reduction effect in iron concentrate containing high sulphur, for example, can only incite somebody to action
Sulphur in iron concentrate containing high sulphur is reduced to 5% or less from original 20% or so.Moreover, prior art Long raise flotation is de-
In sulphur, final products are only iron ore concentrate, and the sulphur in Long raise loses in tailing in vain, not only cause resource
Waste, also brings pollution to environment.Moreover, the iron extract mine producation that prior art Long raise floatation desulphurization obtains
Iron grade is lower, and generally less than 64.5%, it is difficult to adapt to the demand in market.
Summary of the invention
Select that difficulty is big, tailing yield is big, resource the purpose of the present invention is to iron existing in the prior art, sulphur content
Big technical problem is wasted, and provides that a kind of iron concentrate grade is high, desulfurization effect is good and can obtain the high-sulfur magnetic of three kinds of products
The floating sorting of the magnetic-of iron ore concentrate and method of comprehensive utilization.
Above-mentioned purpose to realize the present invention, a kind of floating sorting of magnetic-of Long raise of the present invention and comprehensive utilization side
The technical solution that method uses are as follows:
A kind of floating sorting of magnetic-of Long raise of the present invention uses following technique with method of comprehensive utilization:
(1) Long raise ore grinding-low intensity magnetic separation
To TFe grade between 55%~60%, TS content is between 8%~10% and the sulphur occupation rate of magnetic iron ore accounts for
The sorting of the Long raise of 90% or more sulphur total amount, Long raise progress ore grinding-low intensity magnetic separation, acquisition TFe grade >=
64.0%, low intensity magnetic separation tailing is discharged in the weak magnetic separation iron concentrate of TS >=10.0%；
The low intensity magnetic separation using a weak magnetic roughing, a weak magnetic is selected is preferred；Ore grinding uses tower mill, ore grinding grain
Degree control is between -0.043mm78%~83%；Low intensity magnetic separation uses adverse current permanent-magnet drum type magnetic separator, the magnetic induction of one roughing
Strength control is in 135~150kA/m range, magnetic induction control 120~135kA/m range of primary cleaning.
(2) weak magnetic separation iron concentrate one is thick, an essence, sweeps closed circuit floating sulphur operation
The weak magnetic separation iron concentrate that step (1) obtains is subjected to once floating sulphur roughing, once floating sulphur is selected, once floating sulphur is swept
Choosing, obtains TS grade > 24.0%, TFe grade > 60.0% high-ferrum sulfur ore concentrates, and discharge once purging selection floats sulphur tailing；Once floating sulphur essence
The concentrate that the tailing of choosing, primary floating sulphur are scanned returns to once floating sulphur roughing after merging.
In the floating sulphur operation, use oxalic acid for complexing agent, copper sulphate is activator, and butyl xanthate is collecting agent, 2# oil
For foaming agent, according to flotation to the dry mine meter of mine, dosing are as follows: once floating sulphur roughing 1200~2000g/t of consumption of oxalic acid,
Copper sulphate 400~1200g/t of dosage, butyl xanthate dosage are 200~300g/t, and foaming agent 2# oil dosage is 40~50g/t；Once
Floating sulphur scans 400~1200g/t of consumption of oxalic acid, copper sulphate 300~500g/t of dosage, and butyl xanthate dosage is 200~300g/t, rises
Infusion 2# oil dosage is 20~30g/t；Once the floating selected butyl xanthate dosage of sulphur is 100~150g/t, and foaming agent 2# oil dosage is 5
~15g/t.
According to flotation to the dry mine meter of mine, preferably dosing are as follows: once floating sulphur roughing consumption of oxalic acid 1600~
1800g/t, copper sulphate 600~800g/t of dosage, butyl xanthate dosage be 200~300g/t, foaming agent 2# oil dosage be 40~
50g/t；Once floating sulphur scans 400~1200g/t of consumption of oxalic acid, copper sulphate 300~500g/t of dosage, and butyl xanthate dosage is 200
~300g/t, foaming agent 2# oil dosage are 20~30g/t；Once the floating selected butyl xanthate dosage of sulphur is 100~150g/t, foaming agent
2# oil dosage is 5~15g/t.
(3) once purging selection floats the open circuit flows of sulphur tailing
The floating sulphur tailing of the once purging selection of step (2) discharge is fed into floating sulphur and scans open circuit operation, it is big to obtain Iron grade respectively
Coal separation dense media product and Iron grade in 63.0% are greater than the 67.0%, iron ore concentrate of TS content < 1.1%.
In open circuit flows operation, use oxalic acid for complexing agent, copper sulphate is activator, butyl xanthate and butyl ammonium aerofloat it is mixed
Conjunction medicine is collecting agent, and 2# oil is foaming agent；According to flotation to the dry mine meter of mine, dosing are as follows: consumption of oxalic acid 400~
1000g/t, copper sulphate 300~500g/t of dosage, butyl xanthate+butyl ammonium aerofloat dosage are 100~200g/t, foaming agent 2# oil dosage
For 20~30g/t.
According to flotation to the dry mine meter of mine, the dosing of optimization are as follows: 700~900g/t of consumption of oxalic acid, copper sulphate are used
400~450g/t is measured, butyl xanthate+butyl ammonium aerofloat dosage is 100~200g/t, and foaming agent 2# oil dosage is 20~30g/t.
In the mixing medicine of butyl xanthate and butyl ammonium aerofloat, the ratio between butyl xanthate and butyl ammonium aerofloat are 1:(0.8~1.2) it is advisable,
Wherein with 1:(0.9~1.1) it is preferred, in the proportion, the synergistic effect of butyl xanthate and butyl ammonium aerofloat is ideal.
(4) high-ferrum sulfur ore concentrates prepare sulfuric acid
TS grade > 24.0% of step (2) acquisition, TFe grade > original of 60.0% high-ferrum sulfur ore concentrates as sulfuric acid plant's relieving haperacidity
Material, and the sulfate slag after relieving haperacidity directly as qualified iron ore concentrate, can realize the double utilizations of resources of the sulphur iron of high-ferrum sulfur ore concentrates.
The occurrence of the parameters such as above-mentioned grinding particle size, flotation number, dosing, magnetic induction intensity, can be according to ore
Property is determined by laboratory results.
Compared with prior art, the floating sorting of a kind of magnetic-of Long raise of the present invention has such as with method of comprehensive utilization
Lower advantage:
(1) using " half closed circuit-half opens a way " process, the step for realizing Long raise recycles flotation flowsheet,
Obtain three kinds of iron ore concentrate, high-ferrum sulfur ore concentrates and dense media product products.Results of laboratory show iron in three kinds of products,
The comprehensive recovery of sulphur is up to 96.0% or more in pairs, realizes maximizing the benefits, comprehensive utilization of resources maximizes；
(2) influence of the metal ion such as calcium ion to sulphur flotation in ore pulp is eliminated as complexing agent using oxalic acid, and had
Help reduce the consumption of sulfuric acid；
(3) sulfate slag after high-ferrum sulfur ore concentrates relieving haperacidity can realize the double utilizations of resources of sulphur iron directly as iron ore concentrate；
(4) process flow is simple, and beneficiation cost is low, and medicament used is all the medicament of easy buying in the market, obtains iron
Three kinds of concentrate, high-ferrum sulfur ore concentrates, dense media products have market outlet, achieve unexpected technical effect, economic effect.
Detailed description of the invention
Fig. 1 is a kind of principle process flow of magnetic-of Long raise of the present invention floating sorting and method of comprehensive utilization
Figure.
Specific embodiment
It is floating to a kind of magnetic-of Long raise of the present invention with reference to the accompanying drawings and examples to sort for the description present invention
It is described in further details with method of comprehensive utilization.
Long raise stone used in the present embodiment takes Anhui copper mine, Long raise chemistry multielement analysis
It the results are shown in Table 1, Fe clusters analysis the results are shown in Table 2, and sulphur material phase analysis the results are shown in Table 3.
1 Long raise chemistry multielement analysis result of table
| Lab work | TFe | SiO2 | Al2O3 | CaO | MgO |
| Content (%) | 55.69 | 9.61 | 0.985 | 4.05 | 1.96 |
| TS | P | K2O | Na2O | MnO | TiO2 |
| 8.86 | 0.018 | 0.068 | 0.177 | 0.108 | 0.091 |
| V2O5 | CuO | ZnO | Cr2O3 | NiO | / |
| 0.09 | 0.066 | 0.007 | 0.021 | 0.049 | / |
2 Long raise Fe clusters of table analyze result
| Iron phase title | Iron-content | Distributive law |
| Magnetic iron ore | 40.77 | 72.49 |
| Bloodstone | 1.27 | 2.26 |
| Magnetic iron ore | 13.06 | 23.22 |
| Siderite | 0.42 | 0.75 |
| Pyrite | 0.12 | 0.21 |
| Ferrosilite | 0.60 | 1.07 |
| Quan Tie | 56.24 | 100.00 |
3 Long raise sulphur material phase analysis result (%) of table
| Sulphur object phase title | Sulfur content | Distributive law |
| Elemental sulfur | 0.02 | 0.21 |
| Sulphur in sulfate | 0.24 | 2.57 |
| The sulphur of magnetic sulfide | 8.71 | 93.26 |
| The sulphur of other sulfide | 0.37 | 3.96 |
| Full sulphur | 9.34 | 100.00 |
By Long raise property analysis as it can be seen that major impurity TS content is up to 8.86%, and wherein 93.26% with
The form of magnetic iron ore exists, magnetic iron ore category strongly magnetic mineral, enters weak magnetic essence together with magnetic iron ore during low intensity magnetic separation
In mine, therefore magnetic iron ore can not be removed using single low intensity magnetic separation, it is necessary to use flotation removing.
The principle process flow chart of a kind of magnetic-of Long raise as shown in Figure 1 floating sorting and method of comprehensive utilization
Find out, a kind of floating sorting of magnetic-of Long raise of the present invention uses following technique, step with method of comprehensive utilization:
(1) Long raise ore grinding-low intensity magnetic separation；
The use for laboratory particulate tower grinding machine that grinding attachment uses Zhong Gang Group, AnHui TianYuan Science Co., Ltd to develop,
Grinding particle size control is advisable in -0.043mm75%~85%, and the grinding particle size of final choice is -0.043mm80%.Tower grinding machine
Grinding particle size it is more uniform, avoid overground and argillization phenomenon generation.
Weak magnetic separation equipment uses adverse current permanent-magnet drum type magnetic separator, and low intensity magnetic separation process is one roughing, primary cleaning is preferred；Slightly
The magnetic induction control of choosing is advisable in 143~159kA/m range, selected magnetic induction control 126~143kA/m range
It is advisable.The magnetic induction intensity of laboratory optimization are as follows: roughing 143kA/m, selected 126kA/m.Point of adverse current permanent-magnet drum type magnetic separator
Select precision higher.
By ore grinding-low intensity magnetic separation above, TFe grade 64.86%, the weak magnetic separation iron essence of TS content 10.65% are obtained
Mine, discharge yield are the low intensity magnetic separation tailing of 15.36%, TFe grade 12.63%, TS content 2.06%.
(2) the weak magnetic separation iron concentrate that step (1) obtains through one thick one it is single-minded sweep closed circuit flotation, obtain high-ferrum sulfur ore concentrates；
By the weak magnetic separation iron concentrate of TFe grade 64.86%, TS content 10.65% carry out one thick one it is single-minded sweep it is closed circuit sort,
Obtain the high-ferrum sulfur ore concentrates of TS grade 25.6%, TFe grade 61.3%.
Step (2) flotation single-minded sweeps closed circuit flotation using one thick one；Use oxalic acid for complexing agent, copper sulphate is activator,
Butyl xanthate is collecting agent, and 2# oil is foaming agent.
By some column condition tests, according to flotation to the dry mine meter of mine, the medicament of flotation in step (2) is finally determined
Dosage are as follows: once floating sulphur roughing consumption of oxalic acid 1710g/t, copper sulphate dosage 650g/t, butyl xanthate dosage are 250g/t, foaming agent
2# oil dosage is 48g/t；Once floating sulphur scans consumption of oxalic acid 750g/t, copper sulphate dosage 360g/t, and butyl xanthate dosage is 250g/
T, foaming agent 2# oil dosage are 24g/t；Once the floating selected butyl xanthate dosage of sulphur is 125g/t, and foaming agent 2# oil dosage is 12g/t
(3) open circuit flows are carried out to step (2) slot bottom product, obtains the iron essence of coal separation dense media product and qualification
Mine.
Slot bottom product in step (2) is subjected to open circuit flows, obtains the coal separation of TS15.86%, TFe grade > 63.58%
With dense media product, the another iron ore concentrate for obtaining TFe grade 67.5%, TS content < 1.06%.Coal separation is mainly with dense media product
Magnetic iron ore, density is big, meets requirement of the coal separation dense media product to density, and the magnetic Huang iron as coal separation dense media
Mine, susceptibility is high, can be recycled with magnetic separation recovery.
Step (3) flotation uses an open circuit flows, uses oxalic acid for complexing agent, copper sulphate is activator, butyl xanthate+fourth
Ammonium black powder (1:1) is collecting agent, and 2# oil is foaming agent.
The dosing of step (3) flotation are as follows: according to flotation to the dry mine meter of mine, dosing are as follows: consumption of oxalic acid
750g/t, copper sulphate dosage 430g/t, butyl xanthate+butyl ammonium aerofloat dosage are 125g/t, and foaming agent 2# oil dosage is 24g/t.
(4) high-ferrum sulfur ore concentrates prepare sulfuric acid
Original of the high-ferrum sulfur ore concentrates of TS grade 25.6%, TFe grade 61.3% that step (2) obtains as sulfuric acid plant's relieving haperacidity
Material, and the TFe grade of the sulfate slag after relieving haperacidity is up to 67.6% or more, can sell directly as qualified iron ore concentrate, realizes high-speed rail
The double utilizations of resources of the sulphur iron of iron concentrate.
It for complexing agent, sulfuric acid is that activator has carried out comparative test that the present invention, which also uses citric acid, and the ore grinding of (1) step is set
It is standby to use 240 × 90 conical ball mill of laboratory Ф.By experimental study, under the conditions of the test parameters of optimization, sulphur can get
The dense media product of grade 24.76%, the high-ferrum sulfur ore concentrates of Iron grade 60.65% and Iron grade 63.29%, has also obtained iron
The iron ore concentrate of grade 67.08%, tailing yield is TFe grade 13.08%, TS grade 1.83% in 16.61%, tailing, than this
It is low to invent the test index obtained.Research it has also been found that, using citric acid for complexing agent, sulfuric acid is activator, and dosing is big.
The present invention applies in the Anhui dressing plant high sulfur-bearing Ci Kuang, the technical indicator and laboratory that commerical test obtains
As a result very close, it solves iron, sulphur existing for many years and is difficult to the environment sorted, the wasting of resources is big, sulphur emissions to tailing generate
The problem of pollution, obtains extraordinary economic benefit, environmental benefit, achieves unexpected technical effect.
Claims (4)
1. a kind of floating sorting of magnetic-of Long raise and method of comprehensive utilization, it is characterised in that use following technique:
(1) Long raise ore grinding-low intensity magnetic separation
To TFe grade between 55%~60%, TS content between 8%~10% and the sulphur occupation rate of magnetic iron ore to account for sulphur total
The sorting of the Long raise of 90% or more amount, Long raise progress ore grinding-low intensity magnetic separation, acquisition TFe grade >=
64.0%, low intensity magnetic separation tailing is discharged in the weak magnetic separation iron concentrate of TS >=10.0%；
The low intensity magnetic separation is selected using a weak magnetic roughing, a weak magnetic；
(2) weak magnetic separation iron concentrate one is thick, an essence, sweeps closed circuit floating sulphur operation
The weak magnetic separation iron concentrate that step (1) obtains is subjected to once floating sulphur roughing, once floating sulphur is selected, once floating sulphur is scanned, obtain
TS grade > 24.0%, TFe grade > 60.0% high-ferrum sulfur ore concentrates are obtained, discharge once purging selection floats sulphur tailing；Once floating sulphur is selected
The concentrate that tailing, primary floating sulphur are scanned returns to once floating sulphur roughing after merging；
In the floating sulphur operation, use oxalic acid for complexing agent, copper sulphate is activator, and butyl xanthate is collecting agent, and 2# oil is
Infusion, according to flotation to the dry mine meter of mine, dosing are as follows: once floating sulphur roughing 1200~2000g/t of consumption of oxalic acid, sulfuric acid
Copper 400~1200g/t of dosage, butyl xanthate dosage are 200~300g/t, and foaming agent 2# oil dosage is 40~50g/t；Once floating sulphur
400~1200g/t of consumption of oxalic acid, copper sulphate 300~500g/t of dosage are scanned, butyl xanthate dosage is 200~300g/t, foaming agent
2# oil dosage is 20~30g/t；Once the floating selected butyl xanthate dosage of sulphur is 100~150g/t, foaming agent 2# oil dosage is 5~
15g/t；
(3) once purging selection floats the open circuit flows of sulphur tailing
The floating sulphur tailing of the once purging selection of step (2) discharge is fed into floating sulphur and scans open circuit operation, Iron grade is obtained respectively and is greater than
63.0% coal separation dense media product and Iron grade are greater than the iron ore concentrate of 67.0%, TS content < 1.1%；
In open circuit flows operation, use oxalic acid for complexing agent, copper sulphate is activator, the mixing medicine of butyl xanthate and butyl ammonium aerofloat
For collecting agent, 2# oil is foaming agent；According to flotation to the dry mine meter of mine, dosing are as follows: 400~1000g/t of consumption of oxalic acid,
Copper sulphate 300~500g/t of dosage, butyl xanthate+butyl ammonium aerofloat dosage be 100~200g/t, foaming agent 2# oil dosage be 20~
30g/t；
(4) high-ferrum sulfur ore concentrates prepare sulfuric acid
TS grade > 24.0% of step (2) acquisition, TFe grade > raw material of 60.0% high-ferrum sulfur ore concentrates as sulfuric acid plant's relieving haperacidity,
And the sulfate slag after relieving haperacidity directly as qualified iron ore concentrate, can realize the double utilizations of resources of the sulphur iron of high-ferrum sulfur ore concentrates.
2. a kind of magnetic-of Long raise as described in claim 1 floats sorting and method of comprehensive utilization, it is characterised in that:
In step (2), according to flotation to the dry mine meter of mine, dosing are as follows: once floating sulphur roughing consumption of oxalic acid 1600~
1800g/t, copper sulphate 600~800g/t of dosage, butyl xanthate dosage be 200~300g/t, foaming agent 2# oil dosage be 40~
50g/t；Once floating sulphur scans 400~1200g/t of consumption of oxalic acid, copper sulphate 300~500g/t of dosage, and butyl xanthate dosage is 200
~300g/t, foaming agent 2# oil dosage are 20~30g/t；Once the floating selected butyl xanthate dosage of sulphur is 100~150g/t, foaming agent
2# oil dosage is 5~15g/t；
In step (3), according to flotation to the dry mine meter of mine, dosing are as follows: 700~900g/t of consumption of oxalic acid, copper sulphate are used
400~450g/t is measured, butyl xanthate+butyl ammonium aerofloat dosage is 100~200g/t, and foaming agent 2# oil dosage is 20~30g/t.
3. a kind of magnetic-of Long raise as claimed in claim 1 or 2 floats sorting and method of comprehensive utilization, feature exist
In: in the mixing medicine of butyl xanthate and butyl ammonium aerofloat, the ratio between butyl xanthate and butyl ammonium aerofloat are 1:(0.8~1.2).
4. a kind of magnetic-of Long raise as claimed in claim 3 floats sorting and method of comprehensive utilization, it is characterised in that:
In step (1), ore grinding uses tower mill, and grinding particle size controls between -0.043mm78%~83%；Low intensity magnetic separation is using inverse
Permanent-magnet drum type magnetic separator is flowed, the magnetic induction control of one roughing is in 135~150kA/m range, the magnetic induction of primary cleaning
Strength control 120~135kA/m range.
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