CN109847924A - The beneficiation method of coarse fraction cassiterite in a kind of stannum-contained multi-metal sulphide ore - Google Patents
The beneficiation method of coarse fraction cassiterite in a kind of stannum-contained multi-metal sulphide ore Download PDFInfo
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- CN109847924A CN109847924A CN201910170405.2A CN201910170405A CN109847924A CN 109847924 A CN109847924 A CN 109847924A CN 201910170405 A CN201910170405 A CN 201910170405A CN 109847924 A CN109847924 A CN 109847924A
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 title claims abstract description 247
- 238000000034 method Methods 0.000 title claims abstract description 88
- 229910052976 metal sulfide Inorganic materials 0.000 title claims abstract description 30
- 239000012141 concentrate Substances 0.000 claims abstract description 262
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 157
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 49
- 239000011707 mineral Substances 0.000 claims abstract description 49
- 238000005188 flotation Methods 0.000 claims abstract description 44
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 34
- 230000023556 desulfurization Effects 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 93
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 70
- 239000004576 sand Substances 0.000 claims description 60
- 239000003814 drug Substances 0.000 claims description 57
- 238000005520 cutting process Methods 0.000 claims description 43
- 229910052742 iron Inorganic materials 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 23
- 239000000654 additive Substances 0.000 claims description 21
- 230000000996 additive effect Effects 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000012190 activator Substances 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- PDYXSJSAMVACOH-UHFFFAOYSA-N [Cu].[Zn].[Sn] Chemical compound [Cu].[Zn].[Sn] PDYXSJSAMVACOH-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 229910001662 tin mineral Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000686 essence Substances 0.000 description 3
- 238000007885 magnetic separation Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000010187 selection method Methods 0.000 description 3
- 238000010334 sieve classification Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229910052626 biotite Inorganic materials 0.000 description 2
- 229910052951 chalcopyrite Inorganic materials 0.000 description 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical group [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 2
- 229910001919 chlorite Inorganic materials 0.000 description 2
- 229910052619 chlorite group Inorganic materials 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 229910001779 copper mineral Inorganic materials 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052683 pyrite Inorganic materials 0.000 description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 2
- 239000011028 pyrite Substances 0.000 description 2
- 229910052611 pyroxene Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 229910052569 sulfide mineral Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FDKCTEWMJWRPDS-UHFFFAOYSA-N dialuminum;trimagnesium;trisilicate Chemical compound [Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] FDKCTEWMJWRPDS-UHFFFAOYSA-N 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910052832 pyrope Inorganic materials 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a kind of beneficiation methods of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore, pre-classification is carried out to stannum-contained multi-metal sulphide ore first, fine fraction ore after classification enters Fine cassiterite and sorts system, coarse fraction ore after classification enters coarse fraction cassiterite Beneficiation flowsheet, coarse grain desulfurization flotation through coarse fraction cassiterite Beneficiation flowsheet, vibrating screen classification, spiral chute sorting, shaking table coarse scan choosing, tin rough concentrate floatation desulphurization, the higher coarse grain Tin concentrate of stanniferous grade is finally sub-elected after table concentration, the present invention not only contributes to that grade rejoins one's unit sorting and pre-selection improves process and is selected in and gives mine grade, it is also beneficial to improve the cassiterite rate of recovery and reduces production cost, it is applicable not only to single cassiterite sorting mineral, the recycling containing coarse grain cassiterite in cassiterite polymetallic sulphide ore especially suitable for cassiterite disseminated grain size thickness unevenness, the present invention is thick The recycling of grade cassiterite provides an effective way, and cassiterite is promoted to sort technical indicator, the promotion of economic benefit and technique of preparing progress.
Description
Technical field
The present invention relates to a kind of beneficiation method of cassiterite, in particular to coarse fraction cassiterite in a kind of stannum-contained multi-metal sulphide ore
Beneficiation method, belong to technical field of beneficiation.
Background technique
Tin ore is one of the Dominant Mineral Resources in China, and association component is more, and comprehensive reutilization value is big, wherein cassiterite (SnO2)
It is mainly to recycle containing tin mineral.Cassiterite density is bigger than the gangue of symbiosis and metalliferous mineral between 6.0-7.0g/cm3, gravity
Ore dressing is the Conventional processing methods for recycling cassiterite, and+0.037mm coarse fraction cassiterite gravity treatment recovery efficiency is high, cost is relatively low but right
It is difficult to effectively recycle in the fine fraction cassiterite gravity separation of -0.037mm.Cassiterite is crisp frangible, in operations rings such as exploitation, comminution mines
Section inevitably generates argillization and crosses crushing phenomenon, generates the fine fraction cassiterite of a large amount of -0.037mm, and most of cassiterite mine
For object because disseminated grain size thickness is uneven, the single gravity separation technique of tradition has been unable to the cassiterite of each grade of recycling of economical and efficient
Mineral.Single cassiterite mineral species are few in domestic mineral resources simultaneously, cassiterite mostly with the mineral such as other metal sulfides, magnetic iron ore
Association further increases the difficulty of comprehensive utilization of resources, exploits and recycles with the further expansion of mineral resources, is selected in
Grade gradually declines, and the rate of recovery decline of cassiterite mineral, the production cost increases, and problem gradually highlights.
Shaking table has the characteristics that concentration ratio is high, separating effect is preferable, is the preferred unit of coarse fraction cassiterite recycling, but with
Dressing plant's construction is gradually enlarged, and the grinding particle size that multi-metallic minerals need is multifactor compared with thin, separate unit shaking table processing capacity is low etc.
Influence cause that shaking table quantity is more, takes up a large area etc. and cause production series more, production cost, energy consumption are higher, complex process, manage
The reason control problems such as difficulty is big.
To further increase resource comprehensive utilization utilization rate, production cost is reduced, in recent years for reselecting method to particulate
The poor problem of cassiterite recovering effect, Fine cassiterite floatation process technology have been rapidly developed and have applied in the industrial production,
Efficiently solve the problems, such as that the recycling of fine fraction cassiterite is difficult, meanwhile, the combination of coarse fraction cassiterite sorting process equipment is also gradually various
Change, pre-selection desliming, the de- thick thinking for reducing production cost and production application also gradually increase, reduce the synthetical recovery of cassiterite at
This.It but is always the problem for perplexing ore dressing field for the economical and efficient synthetical recovery of cassiterite in multi-metallic minerals containing cassiterite, newly
Technique, the combination of more equipment, the innovation of new approaches are also that ore dressing field persistently studies progressive theme.
Summary of the invention
In order to improve the comprehensive recovery of cassiterite in multi-metallic minerals containing cassiterite, the purpose of the present invention is to provide one kind to contain
The beneficiation method of coarse fraction cassiterite in tin-polymetallic sulphide ore provides a kind of way of economical and efficient for the recycling of coarse fraction cassiterite
Diameter effectively facilitates cassiterite and sorts technical indicator, the promotion of economic benefit and the progress of technique of preparing.
The technical scheme is that in a kind of stannum-contained multi-metal sulphide ore coarse fraction cassiterite beneficiation method, it is right first
Stannum-contained multi-metal sulphide ore carries out pre-classification, and the fine fraction ore after classification enters Fine cassiterite and sorts system, after classification
Coarse fraction ore enters coarse fraction cassiterite Beneficiation flowsheet, through the coarse grain desulfurization flotation of coarse fraction cassiterite Beneficiation flowsheet, vibrosieve
It is 38~45% that stanniferous grade is finally sub-elected after grade, spiral chute sorting, shaking table coarse scan choosing, floatation desulphurization, table concentration
Coarse grain Tin concentrate.
Specific step is as follows for beneficiation method of the present invention:
(1) first that the adjustment of stannum-contained multi-metal sulphide ore weight of material concentration is rear using cyclone progress between 17-25%
The pre-classification of ± 0.037mm grade, guarantee cyclone operating pressure be 0.05~0.15Mpa, obtain+0.037mm material and-
0.037mm material, -0.037mm material enter Fine cassiterite and sort system；
(2)+0.037mm the material of step (1) carries out coarse grain desulfurization flotation, obtains iron concentrate A and tailing, tailing enters vibration
Dynamic sieve classification operation, and the classification dimensions of selected vibrating screen are 0.106~0.180mm, obtain sieving coarse grain gangue material and sieve
Under stanniferous material, coarse grain gangue material directly throws tail on sieve；
(3) stanniferous material carries out spiral chute sorting enrichment and classification under the sieve of step (2), obtains chute concentrate, chute
Chats and chute tailing, chute tailing enter Fine cassiterite and sort system, and chute concentrate, chute chats enter shaking table coarse scan and be elected to be
Industry, finally obtains tin rough concentrate A and tailing is selected in shaking table coarse scan, and shaking table coarse scan selects tailing directly to throw tail；
Step (3) the chute concentrate, chute chats enter the detailed process that shaking table coarse scan is elected to be industry are as follows:
Shaking table roughing is carried out to chute concentrate first, respectively obtains tin rough concentrate I, secondary concentrate I, chats I and tailing I, it is right
Chute chats carries out shaking table roughing, respectively obtains tin rough concentrate II, secondary concentrate II, chats II and tailing II, then by chute essence
Chats I that mine, chute chats shaking table roughing obtain, chats II enter mineral deposit in comprehensive and are scanned after mixing, it is coarse-fine to obtain tin
Mine III, secondary concentrate III, chats III and tailing III mix tailing I, tailing II that chute concentrate, chute chats shaking table roughing obtain
After conjunction enter tailing bed carry out tailing scan, obtain tin rough concentrate IV, secondary concentrate IV, chats IV and tailing IV, wherein chats III,
Chats IV and tailing III, tailing IV merge selects tailing directly to throw tail, secondary concentrate I, secondary concentrate II, secondary concentrate as shaking table coarse scan
III, enter time one section of bed of concentrate after secondary concentrate IV mixes to be scanned, obtain tin rough concentrate V, secondary concentrate V, chats V and tail
Mine V, then enter time two sections of beds of concentrate after chats V and tailing V are mixed and scan, obtain tin rough concentrate VI, secondary concentrate
VI, chats VI and tailing VI；Then enter mineral deposit circulation in comprehensive after mixing chats VI and tailing VI to select again, secondary V He of concentrate
Secondary concentrate VI returns to one section of bed circulation of time concentrate and selects again；Each coarse scan is finally elected to be the tin rough concentrate I~VI that industry shaking table obtains
Tin rough concentrate A is obtained after merging, wherein the material for entering mineral deposit in time one section of bed of concentrate and synthesis uses concentrator before entry
Or board concentrating box is concentrated, cyclone classification, the hydrocyclone sand after classification is respectively adopted in the underflow of concentrator or board concentrating box again
It is all made of vertical stirring mill further to regrind, cyclone overflow respectively enters secondary again after merging with the ore discharge of vertical stirring mill
One section of bed of concentrate and middle mineral deposit.
Step (3) the chute concentrate, chute chats enter process conditions and device configuration type that shaking table coarse scan is elected to be industry
It is number as follows:
When the chute concentrate carries out shaking table roughing the selected material size of control chute concentrate be -0.180mm~+
0.063mm, being selected in weight concentration is 30~38%, and selects coarse sand bed: waveform bed: fine sand bed: cutting bed=1:2:2:2 cloud
Tin formula shaking table carries out configuration sorting；
The selected material size of control chute chats is -0.063mm~+0.037mm when chute chats carries out shaking table roughing,
Selected weight concentration is 27~32%, and selects waveform bed: fine sand type: cutting type: the cloud tin formula of fine mud bed=1:1:2:3 is shaken
Bed carries out configuration sorting.
Described to enter the material that mineral deposit is scanned in comprehensive to be selected in weight concentration be 25~32%, and selects coarse sand bed: fine sand
Type: cutting type: the cloud tin formula shaking table of fine mud bed=1:3:2:1 carries out configuration sorting, and the material sorted into tailing bed is selected
Weight concentration is 15~23%, and selects fine sand type: cutting type: the cloud tin formula shaking table of fine mud bed=2:3:2 carries out configuration point
Choosing.
It is 28~35% that the material sorted into time one section of bed of concentrate, which is selected in weight concentration, and selects coarse sand bed: wave
Shape bed: cutting type: the cloud tin formula shaking table of fine mud bed=2:2:2:1 carries out configuration sorting, described to enter the two sections of bed choosings of time concentrate
It is 20~27% that other material, which is selected in weight concentration, and selects coarse sand bed: fine sand bed: cutting type: fine mud bed=1:2:3:1's
Cloud tin formula shaking table carries out configuration sorting.
(4) floatation desulphurization processing, the tin after obtaining iron concentrate B and desulfurization are carried out after the tin rough concentrate A of step (3) is concentrated
Rough concentrate B, iron concentrate A obtain final iron concentrate after mixing with iron concentrate B, tin rough concentrate B enters table concentration operation, through shaking table
The selected coarse grain Tin concentrate and table concentration tailing for finally obtaining stanniferous grade and being 38~45%, table concentration tailing return step
(3) shaking table coarse scan is elected to be one section of bed circulation of the secondary concentrate in industry and selects again.
Step (4) the tin rough concentrate B enters the detailed process structure and process equipment parameter of table concentration operation are as follows:
One roughing being carried out using cloud tin shaking table to scan twice, the selected material concentration of one roughing shaking table is 15~
20%, Jing Yici shaking table roughing obtain rougher concentration and rougher tailings, and adjustment material concentration is 13- after rougher tailings is concentrated
20% into a shaking table operation is scanned, and is obtained scanning a concentrate and is scanned a tailing, and the concentrated rear adjustment material of a tailing is scanned
Concentration is 10-15% into two shaking table operations are scanned, and obtains scanning two concentrate and scans two tailings, scans two tailings and be back to step
Suddenly the shaking table coarse scan of (3) is elected to be one section of bed circulation of the secondary concentrate in industry and selects again, by rougher concentration, scans a concentrate and scans two essences
As final coarse grain Tin concentrate after mine mixing.
Coarse sand bed is selected in shaking table roughing: waveform bed: cutting bed: the cloud tin formula of fine mud bed=1:3:2:1 is shaken
The configuration of bed is sorted, and is scanned a shaking table operation and is selected waveform bed: fine sand bed: cutting bed: the cloud of fine mud bed=2:2:2:1
The configuration of tin formula shaking table is sorted, and is scanned two shaking table operations and is selected waveform bed: cutting bed: the cloud tin of fine mud bed=3:3:1
The configuration of formula shaking table is sorted.
(5) the coarse grain desulfurization flotation of the step (2), the tin rough concentrate A floatation desulphurization processing of step (4) include primary
Roughing and it is at least secondary scan, at least recleaning, and medicament used in each flotation flowsheet includes that the activator concentrated sulfuric acid, desulfurization are caught
Agent DF-336 and foaming agent terpenic oil are received, wherein total consumption of concentrated sulfuric acid activator is calculated as 1000- by selected dry mine amount
Total consumption of 4000g/t, DF-336 desulfurization collecting agent is calculated as 40-200g/t by selected dry mine amount, terpenic oil foaming agent it is total
Consumption is calculated as 30-100g/t by selected dry mine amount, and each additive amount of medicament of roughing operation is the 60- of the total consumption of each medicament
85%, it is at least secondary to scan the 15-40% that each additive amount of medicament of operation is the total consumption of each medicament.
Each additive amount of medicament of one roughing operation is preferably the 75-80% of the total consumption of each medicament, at least secondary to scan work
Each additive amount of medicament of industry is preferably the 20-25% of the total consumption of each medicament.
The one roughing and it is at least secondary scan, the flotation time of at least recleaning is 4-12min, preferably 6
~8min, the selected material concentration of one roughing are 37-50%.
(6) it is that routine one thick three sweeps three cleaning technological flowasheet knots that the Fine cassiterite, which sorts Fine cassiterite flotation operation in system,
Structure is selected in weight concentration 30-40%, and regulator sodium carbonate 100-400g/t is added in roughing, Kunming University of Science and Technology develops and production
(collectors for cassiterite proportion is JSY- to activator 200-500g/t, the collectors for cassiterite 1000-2000g/t of (code name is " KT-53 ")
20:YT-1=3:1, it is that Hubei Jing Zhou medicament company develops and production, code name are that wherein code name, which is " JSY-20 " collectors for cassiterite,
" YT-1 " collectors for cassiterite is the production of Hunan Yong Tuo medicament company), the tributyl phosphate of supplementary catching agent (code name be " P86 ")
40-150g/t and terpenic oil 20-80g/t scans one, scans two, selected one and add collectors for cassiterite 80-200g/t, 30- respectively
100g/t and 20-80g/t, adding medicine, each operation do not sort time 6-15min to other sorting operations.
(7) the method for the present invention further includes that crushing raw ore, ore grinding to -0.074mm granularity content by weight are accounted for 65-
75%, concentration 35-40% sorts other metal sulfide ores using method for floating in advance, other metal sulfide ores sort
Tailing afterwards using magnetic selection method remove magnet mineral, respectively obtain the concentrate such as other metal sulfide ores and magnetic iron ore product and
Then magnetic tailing material carries out cassiterite sorting again.
The invention has the characteristics that
(1) by pre-classification, corresponding beneficiation method and device systems is taken to carry out thickness respectively the material after classification
The sorting of stanniferous material, it is with strong points.
(2) spiral chute has that processing capacity is big, recycling heavy mineral granularity lower limit is low, can preselect and improve Beneficiation Feed Grade and can
The characteristics of the sorting of rejoining one's unit of achievement unit gradation grade；Shaking table has the characteristics that separating grade concentration ratio is high, using different riffling types
Shaking table surface be directed to selected material feature and carry out preferred disposition, the matching of specific shaking table equipment and material characteristic, the efficiency of separation
Height is conducive to promote operation recovery；The present invention plays spiral chute and shaking table using spiral chute and shaking table combined application
Feature recycling coarse fraction cassiterite simultaneously promotes the rate of recovery.
(3) coarse fraction cassiterite is sorted using the process integration substep that " weight-is floating-heavy " combines, coarse scan choosing guarantees the rate of recovery
Only output cassiterite rough concentrate, avoids the wasting of resources, and to rough concentrate, further selected promotion concentrate quality-improving reaches qualified production
Product requirement, economic and social benefit are significant.
(4) pyrite that cassiterite sorting is influenced on selected material substep removing, reduces spiral chute and shaking table equipment point
Influence of the sulphide ore to cassiterite separating effect and the rate of recovery during cassiterite mineral is selected, first with sulfide mineral ore density and tin
The close feature of stone ore object promotes the separation of cassiterite and gangue mineral, recycles the flotation characteristic difference of cassiterite and sulfide mineral
Sulphide ore is thoroughly removed to realize, step by step by the separation of gangue, sulphide ore and cassiterite, reduces the tin metal in sulphide ore and gangue
Loss, and step up cassiterite concentrate quality.
The beneficial effects of the present invention are:
(1) present invention has established+0.037mm coarse fraction cassiterite gravity treatment by the pre-classification of cyclone and -0.037mm is thin
The thickness separation condition of grade tin-lead soldering realizes to sieve upper coarse fraction gangue the stanniferous material of coarse fraction using vibrating screen screening
Material directly throws tail, can not only reduce the mine amount into coarse fraction re-selection procedure, reduces shaking table quantity configuration, and can reduce
Production cost.
(2) present invention is combined using " spiral chute+shaking table " gravitational separation equipment, not only sorts Beneficiation Feed Grade to coarse fraction cassiterite
It is enriched with, while being classified out -0.037mm grade material contained in coarse fraction material using chute, and coarse fraction material passes through
It crosses chute pre-selection and is further separated out the narrow rank grade material for being conducive to the sorting of shaking table technique device configuration, realize that grade is rejoined one's unit
And corresponding corresponding grade composition is optimized and is sorted using different riffling types and quantity configuration.
(3) present invention selects process of tin using the selected coarse grain of the joint of " flotation+gravity treatment ", can reduce cassiterite coarse scan and select shaking table
Operation control precision and tin rough concentrate grade, effectively improve the rate of recovery of coarse fraction tin rough concentrate；Pass through floatation desulphurization simultaneously
Technique further removes the troilite for influencing cassiterite Gravity separation, rich again to tin rough concentrate using the high feature of shaking table concentration ratio
Collection chooses qualified cassiterite concentrate product, the tailing of concentrating table returns to chute concentrate shaking table process circulation and selects again, avoids
Between in product tin metal loss.
(4) process of the invention, the cassiterite concentrate grade and the rate of recovery after industrial application are compared with wholegrain grade reselecting method
Technique significantly improves, and shaking table quantity configuration significantly reduces, and corresponding technical-economic index, economic benefit are than similar mine or often
Advising cassiterite sorting process has apparent advantage.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1: Yunnan somewhere zinc-tin copper multi-metal sulfide application the method for the present invention carries out cassiterite ore dressing:
1, original ore property condition:
The lower primary zinc-tin copper Polymetallic ore of ground tcrude ore category degree of oxidation, Gold in Ores category mineral are main
It is magnetic iron ore, secondary is chalcopyrite, zincblende and cassiterite；Gangue mineral is based on chlorite, followed by hornblend, pyroxene, stone
English, biotite and calcite etc..Raw ore grade containing zinc 2.5-4.0%, stanniferous grade 0.20-0.40%, 0.10- containing copper grade
0.22%, ferrous grade 10-18%, 4.0-8.5% containing sulfur grade；Tin mineral is mainly cassiterite, a small amount of black tin and the molten tin of acid, tin
Stone occupancy reaches 80% or more, and cassiterite is mainly total to mineral such as magnetic iron ore, pyrope, chlorite, diopside, quartz
Raw, cassiterite disseminated grain size is distributed between 0.074mm-0.002mm, and most of cassiterites are sparse in point shape or dense are distributed in arteries and veins
The disseminated grain size of Shi Zhong, cassiterite are thinner, and 70% or more cassiterite granularity is less than 0.02mm.- 200 mesh content 67- of raw ore grinding particle size
Cassiterite exists and dissociates with monomer under the conditions of 71% 50% or so, still there is part cassiterite and gangue, marmatite, magnetic iron ore
Mineral adhesion.
2, mineral processing circuit:
The ground original process process are as follows: flotation selects copper → flotation that zinc → magnetic separation tapping → floatation desulphurization → shaking table is selected to select tin work
Skill.
Beneficiation method of the present invention is applied in the ground, process flow change are as follows: flotation selects copper → zinc is selected in flotation → to magneticly elect
Iron → pre-classification → floatation desulphurization → " coarse particle gravity+fine particles flotation " selects process of tin, that is, selects process of tin are as follows:+0.037mm coarse grain
The sieve classification that shakes throws tail → chute+shaking table coarse scan choosing → tin rough concentrate floatation desulphurization+table concentration；- 0.037mm fine fraction cassiterite is floating
Choosing, as shown in Figure 1, specific step is as follows for the present embodiment method:
(1) adjustment of stannum-contained multi-metal sulphide ore weight of material concentration is first used into Φ 250mm type cyclone pair after 17%
The pre-classification of stannum-contained multi-metal sulphide ore progress ± 0.037mm grade, guarantee cyclone operating pressure are 0.08Mpa, obtain+
0.037mm material and -0.037mm material, see Table 1 for details for the grade and Metal Distribution parameter of each product.- 0.037mm material into
Enter Fine cassiterite and sort system, Fine cassiterite sort system include the desliming of classifying cyclone -0.037mm material, particulate desulfurization and
The operations such as Fine cassiterite flotation, wherein Fine cassiterite flotation operation is that routine one thick three sweeps three smart flowage structures, and it is dense to be selected in weight
35-40% is spent, regulator sodium carbonate 200g/t, KT-53 activator 300g/t, collectors for cassiterite (JSY-19:YT-1 are added in roughing
=3:1) 1300-1500g/t, supplementary catching agent P86 60g/t and 30g/t terpenic oil, scan an addition collectors for cassiterite 100g/
T, two addition collectors for cassiterite 30g/t and selected addition collectors for cassiterite 40g/t are scanned, other sorting operations not adding medicine,
Each operation of coarse scan selections sorts time 8-12min, and selected section of each operation sorts time 6-8min.
Each product grade of 1 pre-classification operation of table and Metal Distribution situation
(2)+0.037mm the material of step (1) carries out coarse grain desulfurization flotation, and the coarse grain desulfurization flotation operation is by primary thick
Choosing, secondary scan form with recleaning process structure, and the selected material concentration of roughing is 37%, the coarse grain desulfurization flotation
The total flow of each medicament of operation is respectively activator concentrated sulfuric acid 1000g/t (by selected dry mine meter), DF-336 desulfurization collecting
Agent 60g/t (by selected dry mine meter), terpenic oil foaming agent 30g/t (by selected dry mine meter), wherein each medicament of roughing operation
Additive amount be total flow 70%, it is secondary scan each additive amount of medicament of operation be total flow 30%, selected not adding medicine,
Every section of flotation time is 10min, obtains iron concentrate A and tailing through coarse grain desulfurization flotation, and tailing enters vibrating screen graded operation, and
The classification dimensions of selected vibrating screen are 0.106mm, obtain on the sieve of+0.106mm grade on the sieve of coarse grain gangue material and-
Stanniferous material under the sieve of 0.106mm grade is thrown wherein+0.106mm coarse fraction gangue the material on sieve directly throws tail except relatively former
The coarse grain gangue mineral of mineral products rate 10-12%, the 3-5% containing tin metal；
(3) stanniferous material carries out sorting enrichment using the spiral chute of diameter of phi 900mm type and divides under the sieve of step (2)
Grade, obtains chute concentrate, chute chats and chute tailing, see Table 2 for details for the grade and Metal Distribution situation of each product, chute tail
Mine enters Fine cassiterite and sorts system, and chute concentrate, chute chats enter shaking table coarse scan and be elected to be industry, detailed process structure and technique
Equipment configuration parameter are as follows:
First to chute concentrate carry out shaking table roughing, control chute concentrate roughing table selected material size predominantly-
0.106mm~+0.063mm, being selected in weight concentration is 33%, and select " coarse sand bed: waveform bed: fine sand bed: cutting bed=1:2:
The cloud tin formula shaking table of 2:2 " carries out configuration sorting, respectively obtains tin rough concentrate I, secondary concentrate I, chats I and tailing I；To in chute
Mine carries out shaking table roughing, and the selected material size of adjustment control chute chats is mainly -0.063mm~+0.037mm, is selected in weight
Measuring concentration is 30%, and the cloud tin formula shaking table of " waveform bed: fine sand type: cutting type: fine mud bed=1:1:2:3 " is selected to be matched
Sorting is set, tin rough concentrate II, secondary concentrate II, chats II and tailing II are respectively obtained.
Secondly chats I, the chats II obtained chute concentrate, chute chats shaking table roughing enters mineral deposit in comprehensive after mixing
It is scanned, being selected in weight concentration is 25%, and selects " coarse sand bed: fine sand type: cutting type: fine mud bed=1:3:2:1 "
Cloud tin formula shaking table carries out configuration sorting, obtains tin rough concentrate III, secondary concentrate III, chats III and tailing III；By chute concentrate, chute
Tailing I that chats shaking table roughing obtains, tailing II enter tailing bed after mixing carries out tailing and scans, and selected weight concentration is
15%, and the cloud tin formula shaking table of " fine sand type: cutting type: fine mud bed=2:3:2 " is selected to carry out configuration sorting, it is coarse-fine to obtain tin
Mine IV, secondary concentrate IV, chats IV and tailing IV, wherein chats III, chats IV and tailing III, tailing IV merge as shaking table coarse scan
Tailing is selected directly to throw tail.
Further, one section of bed of time concentrate is entered after secondary concentrate I, secondary concentrate II, secondary concentrate III, secondary concentrate IV being mixed to carry out
It scans, being selected in weight concentration is 28%, and selects the cloud tin of " coarse sand bed: waveform bed: cutting type: fine mud bed=2:2:2:1 "
Formula shaking table carries out configuration sorting, obtains tin rough concentrate V, secondary concentrate V, chats V and tailing V；Again by chats V and tailing V
Enter time two sections of beds of concentrate after mixing to be scanned, being selected in weight concentration is 20%, and selects " coarse sand bed: fine sand bed: cutting
Type: the cloud tin formula shaking table of fine mud bed=1:2:3:1 " carries out configuration sorting, obtains tin rough concentrate VI, secondary concentrate VI, chats VI
With tailing VI；Then enter mineral deposit circulation in comprehensive after mixing chats VI and tailing VI to select again, secondary concentrate V and time concentrate VI
One section of bed circulation of time concentrate is returned to select again；Preferentially, the material into mineral deposit in one section of bed of secondary concentrate and synthesis uses dense
Machine is concentrated, and Φ 250mm cyclone fraction grade is respectively adopted in thickener underflow again, and the hydrocyclone sand after classification is using vertical
Agitator mill is further regrinded, and cyclone overflow respectively enters time one section of bed of concentrate again after merging with the ore discharge of vertical stirring mill
With middle mineral deposit.Finally each coarse scan is elected to be after the tin rough concentrate I~VI that industry shaking table obtains merges and obtains tin rough concentrate A.
Each product grade of 2 spiral chute operation of table and Metal Distribution situation
(4) floatation desulphurization processing is carried out after the tin rough concentrate A of step (3) is concentrated, the material of roughing is selected in concentration and is
50%, it carries out one roughing, scan three times and triple cleaning, wherein the flotation time of every subjob is 12min, and medicament always disappears
Consumption is activator concentrated sulfuric acid 4000g/t (pressing dry mine meter), and DF-336 desulfurization collecting agent 150g/t (presses dry mine meter), blistering
Agent terpenic oil 70g/t (presses dry mine meter), and each additive amount of medicament of roughing operation is the 80% of the total consumption of each medicament, scans three times
Each additive amount of medicament of operation is the 20% of the total consumption of each medicament, triple cleaning not adding medicine, after obtaining iron concentrate B and desulfurization
Tin rough concentrate B, iron concentrate A obtains final iron concentrate after mixing with iron concentrate B, tin rough concentrate B enters table concentration operation, shakes
The detailed process of the selected operation of bed are as follows: one roughing is carried out using cloud tin shaking table and is scanned twice, being selected in for a shaking table roughing is dense
Degree is 18%, and the cloud tin formula shaking table of " coarse sand bed: waveform bed: cutting bed: fine mud bed=1:3:2:1 " is selected in a shaking table roughing
Configuration sorted, obtain the rougher concentration and rougher tailings of stanniferous grade 40-45%；Rougher tailings is concentrated to be to concentration
Enter after 16% and scan a shaking table operation, selects the cloud tin formula of " waveform bed: fine sand bed: cutting bed: fine mud bed=2:2:2:1 "
The configuration of shaking table is sorted, and is obtained scanning for stanniferous grade 37-40% and a concentrate and is scanned a tailing；A tailing is scanned through dense
It is reduced to enter after concentration is 13% and scans two shaking table operations, scan two shaking table operations and select " waveform bed: cutting bed: fine mud bed
The configuration of the cloud tin formula shaking table of=3:3:1 " is sorted, and is obtained scanning for stanniferous grade 33-38% and two concentrate and is scanned two tails
Mine, scans two tailings (stanniferous grade is between 0.4-0.8%) and is back to the shaking table coarse scan of step (3) and be elected to be secondary concentrate in industry
One section of bed circulation is selected again, by rougher concentration, is scanned a concentrate and is scanned after two concentrate mix as final coarse grain Tin concentrate (tin
Grade 39-41%).
3, after present invention process method is applied in cassiterite sorting process in the zinc-tin copper multi-metal sulfide, according to key
See Table 3 for details for the technical parameter and sorting index that the number quality that process structure carries out obtains.
Cassiterite sorting process technical parameter and tin index result is selected in 3 Yunnan somewhere zinc-tin copper multi-metal sulfide of table
4, the method for the present invention application front and back tin index comparison:
The method of the present invention selects tin technology using front and back in cassiterite sorting process in the ground zinc-tin copper multi-metal sulfide
See Table 4 for details for index comparing result.Data can be seen that from table 4, the method for the present invention process flow application after, the Tin concentrate rate of recovery compared with
45.22% before improves 5.80%, and technical effect is obvious.
4 present invention process of table applies front and back index in the zinc-tin copper multi-metal sulfide of Yunnan somewhere in cassiterite sorting process
Contrast table
Embodiment 2: the ore dressing of cassiterite is carried out for Yunnan somewhere copper and tin sulphide ore application the method for the present invention:
1, original ore property:
Tcrude ore belongs to primary copper and tin mineral intergrowth, and Gold in Ores category mineral are mainly chalcopyrite, and secondary is magnetic iron ore, magnetic iron ore
And cassiterite；Gangue mineral is with quartz, based on calcite, followed by pyroxene, biotite etc..Raw ore 0.4-1.0% containing copper grade, contain
Tin grade 0.12-0.25%, ferrous grade 5-10%, 2.0-4.0% containing sulfur grade；Tin mineral is mainly cassiterite, and cassiterite occupies
Rate reaches 95% or more, and cassiterite disseminated grain size is distributed between 0.053mm-0.02mm.- 200 mesh content 62- of raw ore grinding particle size
Cassiterite exists and dissociates with monomer under the conditions of 72% 65% or so.
2, mineral processing circuit:
Before present invention application: flotation selects copper → magnetic separation tapping → floatation desulphurization → shaking table to select process of tin.
After present invention application: flotation selects copper → magnetic separation tapping → pre-classification+thin mud desliming to throw tail → floatation desulphurization → vibration
Sieve classification coarse grain gangue throws the choosing that tail+spiral chute+shaking table selects tin rough concentrate table concentration after tin+tin rough concentrate desulfurization+desulfurization
Mine process flow, the specific steps are as follows:
(1) crushing raw ore, ore grinding to -0.074mm granularity content by weight are accounted for into 65%, concentration 34%, using floating
The leading copper mineral flotation of choosing method, nominal group process remove magnet mineral using magnetic selection method, respectively obtain copper, 2 concentrate of iron produce
Magnetic tailing is used the pre-classification of the cyclone progress ± 0.037mm grade of Φ 300mm type by product and magnetic tailing material,
Guarantee cyclone operating pressure is 0.10Mpa, obtains+0.037mm material and -0.037mm material, -0.037mm material is further
Desliming is carried out using the cyclone of Φ 75mm type, the sand setting after desliming enters Fine cassiterite floatation system, after desliming-
0.010mm sludge directly throws tail processing；
(2)+0.037mm the material of step (1) carries out coarse grain desulfurization flotation, removes pyrite, which makees
Industry is made of one roughing, secondary scan with recleaning process flow, and the selected material concentration of roughing is 42%, and the coarse grain is de-
The total flow of each medicament of sulphur flotation operation is respectively activator concentrated sulfuric acid 1500g/t (by selected dry mine meter), and DF-336 is de-
Sulphur collecting agent 40g/t (by selected dry mine meter), terpenic oil foaming agent 30g/t (by selected dry mine meter), wherein roughing operation
Each additive amount of medicament be total flow 90%, it is secondary scan each additive amount of medicament of operation be total flow 10%, it is selected not
Adding medicine, the flotation time of each operation of coarse scan selections are 8min, and the flotation time of selected section of each operation is 5min, through coarse grain
Desulfurization flotation obtains iron concentrate A and tailing, and tailing enters vibrating screen graded operation, and the classification dimensions of selected vibrating screen are
0.125mm, obtains on the sieve of+0.125mm grade on the sieve of coarse grain gangue material and stanniferous material under the sieve of -0.125mm grade,
Wherein+0.125mm coarse fraction gangue the material on sieve directly throws tail；
(3) stanniferous material carries out sorting enrichment using the spiral chute of diameter of phi 1200mm type and divides under the sieve of step (2)
Grade, obtains chute concentrate, chute chats and chute tailing, chute tailing enters Fine cassiterite and sorts system, chute concentrate, chute
Chats enters shaking table coarse scan and is elected to be industry, detailed process structure, technological parameter and device configuration are as follows:
Shaking table roughing is carried out respectively to chute concentrate, chute chats first, wherein guarantee chute concentrate material size be-
0.125mm~+0.063mm, being selected in weight concentration is 34%, and select " coarse sand bed: waveform bed: fine sand bed: cutting bed=1:2:
The cloud tin formula shaking table of 2:2 " carries out configuration sorting, respectively obtains tin rough concentrate I, secondary concentrate I, chats I and tailing I；To in chute
Mine carries out shaking table roughing, and the selected material size of adjustment control chute chats is mainly -0.063mm~+0.037mm, is selected in weight
Measuring concentration is 32%, and the cloud tin formula shaking table of " waveform bed: fine sand type: cutting type: fine mud bed=1:1:2:3 " is selected to be matched
Sorting is set, tin rough concentrate II, secondary concentrate II, chats II and tailing II are respectively obtained.Secondly by chute concentrate, chute chats shaking table
Chats I that roughing obtains, chats II enter mineral deposit in comprehensive and are scanned after mixing, being selected in weight concentration is 27%, and is selected
The cloud tin formula shaking table of " coarse sand bed: fine sand type: cutting type: fine mud bed=1:3:2:1 " carries out configuration sorting, obtains tin rough concentrate
III, secondary concentrate III, chats III and tailing III；Tailing I, tailing II that chute concentrate, chute chats shaking table roughing obtain are mixed
Enter tailing bed progress tailing afterwards to scan, being selected in weight concentration is 20%, and select " fine sand type: cutting type: fine mud bed=2:
The cloud tin formula shaking table of 3:2 " carries out configuration sorting, obtains tin rough concentrate IV, secondary concentrate IV, chats IV and tailing IV, wherein chats
III, chats IV and tailing III, tailing IV merge selects tailing directly to throw tail as shaking table coarse scan.
Further, one section of bed of time concentrate is entered after secondary concentrate I, secondary concentrate II, secondary concentrate III, secondary concentrate IV being mixed to carry out
It scans, being selected in weight concentration is 30%, and selects the cloud tin of " coarse sand bed: waveform bed: cutting type: fine mud bed=2:2:2:1 "
Formula shaking table carries out configuration sorting, obtains tin rough concentrate V, secondary concentrate V, chats V and tailing V；Again by chats V and tailing V
Enter time two sections of beds of concentrate after mixing to be scanned, being selected in weight concentration is 23%, and selects " coarse sand bed: fine sand bed: cutting
Type: the cloud tin formula shaking table of fine mud bed=1:2:3:1 " carries out configuration sorting, obtains tin rough concentrate VI, secondary concentrate VI, chats VI
With tailing VI；Then enter mineral deposit circulation in comprehensive after mixing chats VI and tailing VI to select again, secondary concentrate V and time concentrate VI
One section of bed circulation of time concentrate is returned to select again；Preferentially, the material into mineral deposit in one section of bed of secondary concentrate and synthesis uses dense
Machine is concentrated, and Φ 300mm cyclone fraction grade is respectively adopted in thickener underflow again, and the hydrocyclone sand after classification is using vertical
Agitator mill is further regrinded, and cyclone overflow respectively enters time one section of bed of concentrate again after merging with the ore discharge of vertical stirring mill
With middle mineral deposit.Finally each coarse scan is elected to be after the tin rough concentrate I~VI that industry shaking table obtains merges and obtains tin rough concentrate A.
(4) floatation desulphurization processing is carried out after the tin rough concentrate A of step (3) is concentrated, the material of roughing is selected in concentration and is
37%, it carries out one roughing, secondary scan and recleaning, wherein the flotation time of every subjob is 6-8min, and medicament always disappears
Consumption is activator concentrated sulfuric acid 1500g/t (pressing dry mine meter), and DF-336 desulfurization collecting agent 70g/t (presses dry mine meter), blistering
Agent terpenic oil 40g/t (presses dry mine meter), and each additive amount of medicament of roughing operation is the 85% of the total consumption of each medicament, secondary to scan
Each additive amount of medicament of operation is the 15% of the total consumption of each medicament, recleaning not adding medicine, after obtaining iron concentrate B and desulfurization
Tin rough concentrate B, iron concentrate B obtains final iron concentrate after mixing with iron concentrate A, tin rough concentrate B enters table concentration operation, shakes
The detailed process of the selected operation of bed are as follows: it is 15% that a shaking table roughing, which is selected in concentration, select " coarse sand bed: waveform bed: cutting bed:
The configuration of the cloud tin formula shaking table of fine mud bed=1:3:2:1 " is sorted, obtain stanniferous grade 39-43% rougher concentration and
Rougher tailings；Rougher tailings is concentrated be 13% to concentration after enter and scan a shaking table operation, select and " waveform bed: fine sand bed: carve
Troughstand: the configuration of the cloud tin formula shaking table of fine mud bed=2:2:2:1 " is sorted, and obtain stanniferous grade 36-42% scans one
Concentrate and scan a tailing；Scan a tailing it is concentrated to concentration be 12% after enter scan two shaking table operations, scan two shaking tables
Operation selects the configuration of the cloud tin formula shaking table of " waveform bed: cutting bed: fine mud bed=3:3:1 " to be sorted, and obtains stanniferous product
Scanning for position 35-38% and scans two tailings at two concentrate, scans two tailings (stanniferous grade is between 0.3-0.5%) and is back to step
Suddenly the shaking table coarse scan of (3) is elected to be one section of bed circulation of the secondary concentrate in industry and selects again, by rougher concentration, scans a concentrate and scans two essences
As final coarse grain Tin concentrate (tin grade 39-44%) after mine mixing.
After the method for the present invention is applied in cassiterite sorting process in the ground copper and tin sulphide ore, before the Tin concentrate rate of recovery is relatively applied
Improve 3.8%, technical effect is obvious.
Embodiment 3: it carries out selecting tin for Guangxi somewhere cassiterite polymetallic sulphide ore application the method for the present invention: contain in tcrude ore
There are tin, zinc, lead, antimony and an indium useful metal, cassiterite is subject to coarse grain cassiterite, carries out coarse fraction cassiterite point using the method for the present invention
Choosing, the specific steps are as follows:
(1) crushing raw ore, ore grinding to -0.074mm granularity content by weight are accounted for into 70%, concentration 40%, using floating
The flotation tailing of sulphide ore is used the cyclone progress ± 0.037mm of Φ 250mm type by the flotation of the leading sulphide ore of choosing method
The pre-classification of grade, guarantee cyclone operating pressure are 0.12Mpa, obtain+0.037mm material and -0.037mm material, -
0.037mm material enters Fine cassiterite and sorts system；
(2)+0.037mm the material of step (1) carries out coarse grain desulfurization flotation, and the coarse grain desulfurization flotation operation is by primary thick
Choosing, secondary scan form with recleaning process flow, and the selected material concentration of roughing is 50%, the coarse grain desulfurization flotation operation
The total flow of each medicament is respectively activator concentrated sulfuric acid 4000g/t (by selected dry mine meter), DF-336 desulfurization collecting agent
200g/t (by selected dry mine meter), terpenic oil foaming agent 100g/t (by selected dry mine meter), wherein each medicament of roughing operation
Additive amount be total flow 85%, it is secondary scan each additive amount of medicament of operation be total flow 15%, selected not adding medicine,
Every section of flotation time is 7min, obtains iron concentrate I and tailing through coarse grain desulfurization flotation, and tailing enters vibrating screen graded operation, and
The classification dimensions of selected vibrating screen are 0.180mm, obtain on the sieve of+0.180mm grade on the sieve of coarse grain gangue material and-
Stanniferous material under the sieve of 0.180mm grade the, wherein+0.180mm coarse fraction gangue material on sieve directly throws tail；
(3) stanniferous material carries out sorting enrichment using the spiral chute of diameter of phi 1200mm type and divides under the sieve of step (2)
Grade, obtains chute concentrate, chute chats and chute tailing, chute tailing enters Fine cassiterite and sorts system, chute concentrate, chute
Chats enters shaking table coarse scan and is elected to be industry, detailed process are as follows:
Shaking table roughing is carried out respectively to chute concentrate, chute chats first, wherein guarantee chute concentrate material size be-
0.180mm~+0.063mm, being selected in weight concentration is 30%, and select " coarse sand bed: waveform bed: fine sand bed: cutting bed=1:2:
The cloud tin formula shaking table of 2:2 " carries out configuration sorting, respectively obtains tin rough concentrate I, secondary concentrate I, chats I and tailing I；To in chute
Mine carries out shaking table roughing, and the selected material size of adjustment control chute chats is mainly -0.063mm~+0.019mm, is selected in weight
Measuring concentration is 25%, and the cloud tin formula shaking table of " waveform bed: fine sand type: cutting type: fine mud bed=1:1:2:3 " is selected to be matched
Sorting is set, tin rough concentrate II, secondary concentrate II, chats II and tailing II are respectively obtained.Secondly by chute concentrate, chute chats shaking table
Chats I that roughing obtains, chats II enter mineral deposit in comprehensive and are scanned after mixing, being selected in weight concentration is 32%, and is selected
The cloud tin formula shaking table of " coarse sand bed: fine sand type: cutting type: fine mud bed=1:3:2:1 " carries out configuration sorting, obtains tin rough concentrate
III, secondary concentrate III, chats III and tailing III；Tailing I, tailing II that chute concentrate, chute chats shaking table roughing obtain are mixed
Enter tailing bed progress tailing afterwards to scan, being selected in weight concentration is 23%, and select " fine sand type: cutting type: fine mud bed=2:
The cloud tin formula shaking table of 3:2 " carries out configuration sorting, obtains tin rough concentrate IV, secondary concentrate IV, chats IV and tailing IV, wherein chats
III, chats IV and tailing III, tailing IV merge selects tailing directly to throw tail as shaking table coarse scan.
Further, one section of bed of time concentrate is entered after secondary concentrate I, secondary concentrate II, secondary concentrate III, secondary concentrate IV being mixed to carry out
It scans, being selected in weight concentration is 35%, and selects the cloud tin of " coarse sand bed: waveform bed: cutting type: fine mud bed=2:2:2:1 "
Formula shaking table carries out configuration sorting, obtains tin rough concentrate V, secondary concentrate V, chats V and tailing V；Again by chats V and tailing V
Enter time two sections of beds of concentrate after mixing to be scanned, being selected in weight concentration is 27%, and selects " coarse sand bed: fine sand bed: cutting
Type: the cloud tin formula shaking table of fine mud bed=1:2:3:1 " carries out configuration sorting, obtains tin rough concentrate VI, secondary concentrate VI, chats VI
With tailing VI；Then enter mineral deposit circulation in comprehensive after mixing chats VI and tailing VI to select again, secondary concentrate V and time concentrate VI
One section of bed circulation of time concentrate is returned to select again；Preferentially, the material into mineral deposit in one section of bed of secondary concentrate and synthesis uses dense
Machine is concentrated, and Φ 300mm cyclone fraction grade is respectively adopted in thickener underflow again, and the hydrocyclone sand after classification is using vertical
Agitator mill is further regrinded, and cyclone overflow respectively enters time one section of bed of concentrate again after merging with the ore discharge of vertical stirring mill
With middle mineral deposit.Finally each coarse scan is elected to be after the tin rough concentrate I~VI that industry shaking table obtains merges and obtains tin rough concentrate A.
(4) floatation desulphurization processing is carried out after the tin rough concentrate I of step (3) is concentrated, the material of roughing is selected in concentration and is
38%, it carries out one roughing, secondary scan and recleaning, wherein every section of flotation time is 6min, and medicament total flow is to live
Agent concentrated sulfuric acid 4000g/t (presses dry mine meter), and DF-336 desulfurization collecting agent 200g/t (presses dry mine meter), foaming agent terpenic oil
100g/t (press dry mine meter), each additive amount of medicament of roughing operation are the 60% of the total consumption of each medicament, and secondary to scan operation each
Additive amount of medicament is the 40% of the total consumption of each medicament, recleaning not adding medicine, after often obtaining iron concentrate II and desulfurization
Tin rough concentrate II, iron concentrate II obtain final iron concentrate after mixing with iron concentrate I, tin rough concentrate II enters table concentration operation,
The detailed process of table concentration operation are as follows: one roughing is carried out using cloud tin shaking table and is scanned twice, a shaking table roughing is selected in
Concentration is 10%, and the cloud tin formula shaking table of " coarse sand bed: waveform bed: cutting bed: fine mud bed=1:3:2:1 " is pressed in a shaking table roughing
Carry out configuration sorting, obtain stanniferous grade rougher concentration and rougher tailings, rougher tailings is concentrated be 8% to concentration after enter and sweep
A shaking table operation is selected, configuration is carried out by the cloud tin formula shaking table of " waveform bed: cutting bed: fine mud bed=3:3:1 " and is sorted, obtained
A concentrate and scan a tailing to scanning, scan a tailing it is concentrated be 12% to concentration after enter and scan two shaking table operations, press
The cloud tin formula shaking table of " waveform bed: cutting bed: fine mud bed=2:2:3 " carries out configuration and is sorted, obtain scanning two concentrate and
Two tailings are scanned, two tailings is scanned and is back to the shaking table coarse scan of step (3) and be elected to be industry, circulation is selected again, by rougher concentration, scans one
Concentrate and scan two concentrate mixing after as final coarse grain Tin concentrate (tin grade 38-45%).
The method of the present invention is after ground cassiterite polymetallic sulphide ore application, and the Tin concentrate rate of recovery is compared with improving before application
4.59%, technical effect is obvious.
Embodiment 4: the present embodiment method with embodiment 3, the difference is that, tin rough concentrate I is through dense in the step (4)
Floatation desulphurization processing is carried out after contracting, carry out one roughing, it is secondary scan and recleaning, wherein each additive amount of medicament of roughing operation
Be the 80% of the total consumption of each medicament, it is secondary scan each additive amount of medicament of operation be the total consumption of each medicament 20%, secondary fine
Choosing not adding medicine, the tin rough concentrate II after obtaining iron concentrate II and desulfurization.
After the present embodiment is handled, the finally obtained Tin concentrate rate of recovery is obviously improved before relatively applying the present invention
4.69%.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (9)
1. the beneficiation method of coarse fraction cassiterite in a kind of stannum-contained multi-metal sulphide ore, which is characterized in that first to stannum-contained multi-metal
Sulphide ore carries out pre-classification, and the fine fraction ore after classification enters Fine cassiterite and sorts system, the coarse fraction ore after classification
Into coarse fraction cassiterite Beneficiation flowsheet, coarse grain desulfurization flotation, vibrating screen classification, spiral chute through coarse fraction cassiterite Beneficiation flowsheet
The coarse grain that stanniferous grade is 38~45% is finally sub-elected after sorting, shaking table coarse scan choosing, tin rough concentrate floatation desulphurization, table concentration
Tin concentrate.
2. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 1, it is characterised in that: institute
Stating beneficiation method, specific step is as follows:
(1) adjustment of stannum-contained multi-metal sulphide ore weight of material concentration is first used into cyclone progress ± 0.037mm after 17-25%
The pre-classification of grade, guarantee cyclone operating pressure are 0.05~0.15Mpa, obtain+0.037mm material and -0.037mm object
Material, -0.037mm material enter Fine cassiterite and sort system；
(2)+0.037mm the material of step (1) carries out coarse grain desulfurization flotation, obtains iron concentrate A and tailing, tailing enters vibrating screen
Graded operation, and the classification dimensions of selected vibrating screen are 0.106~0.180mm, obtain sieving coarse grain gangue material and contain under sieving
Tin material, coarse grain gangue material directly throws tail on sieve；
(3) stanniferous material carries out spiral chute sorting enrichment and classification under the sieve of step (2), obtains chute concentrate, chute chats
With chute tailing, chute tailing enters Fine cassiterite and sorts system, and chute concentrate, chute chats enter shaking table coarse scan and be elected to be industry,
It finally obtains tin rough concentrate A and tailing is selected in shaking table coarse scan, shaking table coarse scan selects tailing directly to throw tail；
(4) floatation desulphurization processing is carried out after the tin rough concentrate A of step (3) is concentrated, the tin after obtaining iron concentrate B and desulfurization is coarse-fine
Mine B, iron concentrate A obtain final iron concentrate after mixing with iron concentrate B, tin rough concentrate B enters table concentration operation, through table concentration
Finally obtain coarse grain Tin concentrate and table concentration tailing that stanniferous grade is 38~45%, table concentration tailing return step (3)
Shaking table coarse scan be elected to be industry, form closed cycle.
3. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 2, it is characterised in that: institute
State step (3) chute concentrate, chute chats enters the detailed process that shaking table coarse scan is elected to be industry are as follows:
Shaking table roughing is carried out to chute concentrate first, tin rough concentrate I, secondary concentrate I, chats I and tailing I are respectively obtained, to chute
Chats carry out shaking table roughing, respectively obtain tin rough concentrate II, secondary concentrate II, chats II and tailing II, then by chute concentrate, slip
Chats I that slot chats shaking table roughing obtains, chats II enter mineral deposit in comprehensive and are scanned after mixing, obtain tin rough concentrate III,
Secondary concentrate III, chats III and tailing III mix tailing I, tailing II that chute concentrate, chute chats shaking table roughing obtain laggard
Enter tailing bed progress tailing to scan, obtains tin rough concentrate IV, secondary concentrate IV, chats IV and tailing IV, wherein chats III, chats IV
Merging with tailing III, tailing IV, which becomes shaking table coarse scan, selects tailing directly to throw tail, secondary concentrate I, secondary concentrate II, secondary concentrate III, secondary essence
Mine IV enters time one section of bed of concentrate after mixing and is scanned, and obtains tin rough concentrate V, secondary concentrate V, chats V and tailing V, then
Enter time two sections of beds of concentrate after chats V and tailing V are mixed to scan, obtains tin rough concentrate VI, secondary concentrate VI, chats VI
With tailing VI；Then enter mineral deposit circulation in comprehensive after mixing chats VI and tailing VI to select again, secondary concentrate V and time concentrate VI
One section of bed circulation of time concentrate is returned to select again；Finally each coarse scan is elected to be after the tin rough concentrate I~VI that industry shaking table obtains merges and is obtained
To tin rough concentrate A, wherein the material for entering mineral deposit in time one section of bed of concentrate and synthesis uses concentrator or board concentrating box before entry
It is concentrated, cyclone classification is respectively adopted in the underflow of concentrator or board concentrating box again, and the hydrocyclone sand after classification is all made of vertical
Formula agitator mill is further regrinded, and cyclone overflow respectively enters time one section of concentrate again after merging with the ore discharge of vertical stirring mill
Bed and middle mineral deposit.
4. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 3, it is characterised in that:
The selected material size of control chute concentrate is -0.180mm~+0.063mm when the chute concentrate carries out shaking table roughing,
Selected weight concentration is 30~38%, and selects coarse sand bed: waveform bed: fine sand bed: cutting bed=1:2:2:2 cloud tin formula shaking table
Carry out configuration sorting；
The selected material size of control chute chats is -0.063mm~+0.037mm when chute chats carries out shaking table roughing, is selected in
Weight concentration be 27~32%, and select waveform bed: fine sand type: cutting type: the cloud tin formula shaking table of fine mud bed=1:1:2:3 into
Row configuration sorting；
Described to enter the material that mineral deposit is scanned in comprehensive to be selected in weight concentration be 25~32%, and selects coarse sand bed: fine sand type: being carved
Groove profile: the cloud tin formula shaking table of fine mud bed=1:3:2:1 carries out configuration sorting, and it is dense that the material sorted into tailing bed is selected in weight
Degree is 15~23%, and selects fine sand type: cutting type: the cloud tin formula shaking table of fine mud bed=2:3:2 carries out configuration sorting；
It is 28~35% that the material sorted into time one section of bed of concentrate, which is selected in weight concentration, and selects coarse sand bed: waveform bed:
Cutting type: the cloud tin formula shaking table of fine mud bed=2:2:2:1 carries out configuration sorting, the object for entering time two sections of beds of concentrate and sorting
Expect that selected weight concentration is 20~27%, and selects coarse sand bed: fine sand bed: cutting type: the cloud tin formula of fine mud bed=1:2:3:1
Shaking table carries out configuration sorting.
5. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 2, it is characterised in that: institute
State the detailed process that step (4) tin rough concentrate B enters table concentration operation are as follows:
It carries out one roughing using cloud tin shaking table to scan twice, the selected material concentration of a shaking table roughing is 15~20%, warp
Shaking table roughing obtains rougher concentration and rougher tailings, and adjustment material concentration is 13-20% entrance after rougher tailings is concentrated
A shaking table operation is scanned, obtain scanning a concentrate and scans a tailing, scanning the concentrated rear adjustment material concentration of a tailing is 10-
15% into two shaking table operations are scanned, and are obtained scanning two concentrate and are scanned two tailings, scan two tailings and be back to shaking for step (3)
Bed coarse scan is elected to be the one section of bed circulation of secondary concentrate in industry and selects again, by rougher concentration, scans a concentrate and scans after two concentrate mix
As final coarse grain Tin concentrate.
6. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 5, it is characterised in that: institute
State a shaking table roughing select coarse sand bed: waveform bed: cutting bed: the configuration of the cloud tin formula shaking table of fine mud bed=1:3:2:1 into
Row sorting scans a shaking table operation and selects waveform bed: fine sand bed: cutting bed: the cloud tin formula shaking table of fine mud bed=2:2:2:1
Configuration is sorted, and scan two shaking table operations and select waveform bed: cutting bed: the cloud tin formula shaking table of fine mud bed=3:3:1 is matched
It sets and is sorted.
7. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 2, it is characterised in that: institute
The tin rough concentrate A floatation desulphurization processing of the coarse grain desulfurization flotation, step (4) of stating step (2) includes one roughing and at least two
It is secondary scan, at least recleaning, and medicament used in each flotation flowsheet include the activator concentrated sulfuric acid, desulfurization collecting agent DF-336 and
Foaming agent terpenic oil, wherein total consumption of the activator concentrated sulfuric acid is calculated as 1000-4000g/t by selected dry mine amount, and DF-336 is de-
Total consumption of sulphur collecting agent is calculated as 40-200g/t by selected dry mine amount, and total consumption of terpenic oil foaming agent presses selected dry mine
Amount is calculated as 30-100g/t, and each additive amount of medicament of roughing operation is the 60-85% of the total consumption of each medicament, at least secondary to scan work
Each additive amount of medicament of industry is the 15-40% of the total consumption of each medicament.
8. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 7, it is characterised in that: one
Secondary each additive amount of medicament of roughing operation is preferably the 75-80% of the total consumption of each medicament, and at least secondary each medicament of operation of scanning adds
Dosage is preferably the 20-25% of the total consumption of each medicament.
9. the beneficiation method of coarse fraction cassiterite in stannum-contained multi-metal sulphide ore according to claim 7, it is characterised in that: institute
State one roughing and it is at least secondary scan, the flotation time of at least recleaning is 4-12min, preferably 6~8min, once
The selected material concentration of roughing is 37-50%.
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| CN111495574A (en) * | 2020-03-05 | 2020-08-07 | 云南锡业研究院有限公司 | Novel low-grade ore preselection process |
| CN111974539A (en) * | 2020-08-24 | 2020-11-24 | 昆明理工大学 | Method for improving quality and reducing impurities of tin concentrate |
| CN112237985A (en) * | 2020-10-09 | 2021-01-19 | 昆明理工大学 | Method for recovering cassiterite from tin-containing sulfide ore |
| CN114308368A (en) * | 2021-07-01 | 2022-04-12 | 威海市海王旋流器有限公司 | Copper-tin ore separation process |
| CN114453126A (en) * | 2021-12-21 | 2022-05-10 | 云南锡业股份有限公司大屯锡矿 | Tin-containing oxidized vein ore pre-selection discarding method |
| CN115055277A (en) * | 2022-04-27 | 2022-09-16 | 四川化工职业技术学院 | Process for recovering kaolin, sulfur concentrate and titanium concentrate from pyrite tailings |
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| CN115055277A (en) * | 2022-04-27 | 2022-09-16 | 四川化工职业技术学院 | Process for recovering kaolin, sulfur concentrate and titanium concentrate from pyrite tailings |
| CN115055277B (en) * | 2022-04-27 | 2023-10-13 | 四川化工职业技术学院 | Process for recovering kaolin, sulfur concentrate and titanium concentrate from pyrite tailings |
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