CN107413515B - A kind of fine grain teeth cloth cassiterite beneficiation method - Google Patents
A kind of fine grain teeth cloth cassiterite beneficiation method Download PDFInfo
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- CN107413515B CN107413515B CN201710759743.0A CN201710759743A CN107413515B CN 107413515 B CN107413515 B CN 107413515B CN 201710759743 A CN201710759743 A CN 201710759743A CN 107413515 B CN107413515 B CN 107413515B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
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Abstract
The present invention relates to a kind of fine grain teeth cloth cassiterite beneficiation methods, belong to technical field of mineral processing.Fine grain teeth cloth cassiterite mine carries out a pre-desulfurization flotation through rod mill ore grinding and obtains iron concentrate and pre- desulfurization tailing；Pre- desulfurization tailing enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate and spiral chute tailing；Spiral chute tailing is classified, acquisition+0.053mm coarse fraction, 0.053 ~ 0.038mm intermediate fraction and three products of -0.038mm fine fraction；+ 0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction are subjected to table concentration respectively, obtain table concentrate, chats and tailing, -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment, table concentrate and centrifugal ore separator gravity treatment Tin concentrate are incorporated as qualified Tin concentrate, and tailing is incorporated as true tailings；Shaking table chats merges, and carries out tin-lead soldering and obtains tin rough concentrate；Tin rough concentrate is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu chats.This method has lower production cost and the higher rate of recovery.
Description
Technical field
The present invention relates to a kind of fine grain teeth cloth cassiterite beneficiation methods, belong to technical field of mineral processing.
Background technique
Cassiterite is crisp frangible, is easy to happen crushing in ore grinding even shattering process, easily generates a large amount of secondary tin ores
Mud.The granularity of cassiterite of fine grain teeth cloth tin itself is thinner, generates a large amount of sludges herein during fine grinding, due to a large amount of sludges
Interference cause ore dressing difficulty to increase, the microfine tin ore rate of recovery improves that difficulty is big, and tin resource is lost serious.China is lost every year
Tin resource in, about 80% is lost in tailing in the form of thin mud.
Gravity treatment and flotation are the most important two methods of cassiterite ore dressing.Gravity treatment is greater than universal gangue mine based on cassiterite specific gravity
Object, is the effective ways of coarse grain cassiterite ore dressing, and the efficiency of gravity treatment depends primarily on gravitational separation equipment, shaking table, jigging and spiral chute
Etc. being cassiterite gravity treatment using most common equipment；The more traditional gravity treatment of cassiterite recovery size lower limit of floatation is low, but production cost
Compared with gravity treatment, high, floating agent has the hidden danger of pollution environment, and sulphide ore, iron mineral of association etc. are to tin-lead soldering in thin mud and raw ore
Index Influence is serious.
Patent CN101884951B discloses a kind of particulate and micro fine particle beneficiation combined method method: particulate and microfine tin
Stone carries out the pre- desulfurization of flotation after precipitation concentration, carries out tin-lead soldering after desulfurization, tin-lead soldering rough concentrate again through magnetic separation, desliming,
Concentration and table concentration, finally obtain Tin concentrate.The patent will directly carry out tin-lead soldering, cassiterite obtained by flotation after raw ore desulfurization
Concentrate is again through magnetic separation and cyclone desliming operation output Tin concentrate.A large amount of sludge and part iron mineral will during tin-lead soldering
Undoubtedly tin-lead soldering index is interfered, not only influences the stability of flotation effect, but also sludge will increase floating agent consumption,
It is unreasonable technically and economically.
Patent CN103495493A discloses a kind of beneficiation method of low-grade fine-particulate tin ore, former to more metals first
Ore carries out sulfide flotation, carries out pre-desulfurization；Then iron removal by magnetic separation is carried out to sulfide flotation tailing；Again to magnetic tailing
Cyclone desliming process is carried out, hydrocyclone sand is obtained；Regulator and collecting agent are added again in hydrocyclone sand, after flotation
Obtain cassiterite concentrate.The method recycles cassiterite using single floatation, is unfavorable for the raising of economic indicator, in addition, institute's medication
Agent broad categories, final Tin concentrate grade is only 20% ~ 30%, also the not up to minimum standard index of Tin concentrate, in sludge
Micro fine particle do not take effective recovering means.
Patent CN105618273A discloses a kind of cassiterite polymetallic sulphide ore beneficiation method, cassiterite polymetallic sulphide ore warp
An ore grinding is crossed, sulphide ore is then carried out and returns floatation desulphurization, gained desulfurization tailing is directly entered tin-lead soldering and obtains Tin concentrate.This
Method is that single floatation recycles cassiterite, desulfurization and selects process of tin very simply, but the final Tin concentrate grade of gained be only 5% ~
7%, far below the standard index of Tin concentrate, it can only be used as medium tin ore, be unfavorable for the raising of economic benefit.
In conclusion sorting for micro fine particle is current main direction of studying, flotation is micro fine particle ore dressing
Main method.Sulphide ore and tin thin mud are two important influence factors in micro fine particle floatation process at present.Although part
Technique takes the pre-processing before cassiterite sorts, or uses united process flow, but flotation is at high cost or reasonability
Poor problem is still unresolved.
Summary of the invention
For the above-mentioned problems of the prior art and deficiency, the present invention provides a kind of fine grain teeth cloth cassiterite ore dressing side
Method.This method has lower production cost and the higher rate of recovery, and be particularly suitable for fine grain teeth cloth cassiterite sorts processing.
The invention is realized by the following technical scheme.
The fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) fine grain teeth cloth cassiterite mine accounts for 70% ~ 90% through rod mill ore grinding to -0.074mm, and size mixing is to pulp density
15wt% ~ 45wt% successively adds 50 ~ 400g copper sulphate and 500 ~ 3000g oxalic acid and adjusts agent based on ore per ton, 100 ~
500g butyl xanthate makees collecting agent, and 10 ~ 40g terpinol makees foaming agent, carries out a pre-desulfurization roughing flotation, and it is coarse-fine to obtain sulphur
Mine and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 15wt% ~ 35wt%, and progress blank is selected, essence
Selecting number can be 1 ~ 5 time, and cleaner tailings sequence returns to upper level flotation, obtain iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is 15wt% ~ 45wt%, based on ore per ton,
Medicament kind is identical as step (1) roughing, and dosage halves, and is scanned, and scanning number can be 1 ~ 3 time, and scavenger concentrate sequence is returned
Upper level flotation is returned, pre- desulfurization tailing is obtained；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate and spiral shell
Revolve chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate and centrifugal ore separator gravity treatment Tin concentrate are incorporated as qualified Tin concentrate, and tailing is incorporated as true tailings；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 15wt% ~ 45wt%, successively adds pH
Regulator adjusts pH values of pulp to 7 ~ 9,1500 ~ 2000g activator, 2000 ~ 4000g collecting agent, 130 ~ 140g supplementary catching agent, and 20
~ 40g foaming agent carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 15wt% ~ 35wt%, is carried out empty
Bai Jingxuan, concentration times can be 1 ~ 5 time, and cleaner tailings sequence returns to upper level flotation, obtains tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 15% ~ 45%, by ore per ton
Meter successively adds pH regulator and adjusts pH values of pulp to 7 ~ 9, and other all medicament kinds are identical as step (7) roughing, and dosage subtracts
Half, it carries out tin-lead soldering and scans, scanning number can be 1 ~ 3 time, and scavenger concentrate sequence returns to upper level flotation, obtain tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
PH regulator is one of sodium carbonate, sodium hydroxide or arbitrary proportion in the step (7) and step (9)
Two kinds of mixtures.
Activator is plumbi nitras or lead acetate in the step (7) and step (9).
Collecting agent is DRG-01 in the step (7) and step (9), is made of the raw material of following mass percents: bigcatkin willow
Hydroxamic acid 55 ~ 90%, styrene phosphatase 11 0 ~ 45%.
Supplementary catching agent tributyl phosphate or P86 in the step (7) and step (9).
Foaming agent is terpinol in the step (7) and step (9).
The beneficial effects of the present invention are:
1, raw ore ore grinding uses rod milling, advantageously reduces the generation of tin ore mud, ore pulp is through vulcanizing ore inverse flotation one roughing
Once purging selection pre-desulfurization creates good condition for subsequent cassiterite ore dressing；
2, the ore pulp after pre- desulfurization enters spiral chute roughing, and spiral chute processing capacity is big, is not necessarily to power, and ore dressing is steady
It is fixed, invest to build at low cost, the efficiency of separation is high, can separate coarse grain Tin concentrate in time；
3, coarse fraction (+0.053mm), intermediate fraction (- 0.053 ~ 0.038mm) are respectively adopted table concentration and are conducive to improve
Table concentration efficiency, shaking table chats merge flotation tin, eliminate fine fraction (- 0.038mm) to the adverse effect of tin-lead soldering；
4, using coarse particle gravity-fine particles flotation process integration, the respective advantage of weight, ore flotation method has been given full play to,
It advantageously reduces production cost and reduces environmental pollution caused by medicament use.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1
As shown in Figure 1, the fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) (Burma's tin ore raw ore tin grade is 0.55wt% to fine grain teeth cloth cassiterite mine, and main mineral composition is tin
Stone, pyrite, quartz, calcite etc..) through rod mill ore grinding 85% is accounted for -0.074mm, sizing mixing to pulp density is 25wt%, is pressed
Ore meter per ton successively adds 150g copper sulphate and 2000g oxalic acid adjusts agent, and 200g butyl xanthate makees collecting agent, 20g pine tar
Alcohol makees foaming agent, carries out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected, concentration times
It can be 1 time, cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is that 25wt% successively adds based on ore per ton
75g copper sulphate and 1000g oxalic acid is added to adjust agent, 100g butyl xanthate makees collecting agent, and 10g terpinol is made foaming agent, swept
Choosing, scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtain pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate (product
Position is 42.05wt%, reaches a kind of Tin concentrate quality standard, the rate of recovery 40.04%) and spiral chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate (grade 40.00wt% reaches a kind of Tin concentrate quality standard, the rate of recovery 20.25%) and centrifugal ore separator weight
Tin concentrate (concentrate grade 35.04wt%, the rate of recovery 5.25%) is selected to be incorporated as qualified Tin concentrate, tailing is incorporated as finally
Tailing；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 25wt%, successively adds pH regulator
(sodium carbonate) adjusts pH values of pulp to 8,1500g activator (plumbi nitras), 4000g collecting agent (collecting agent DRG-01, by following matter
The raw material of amount percentage is made: p-toluene sulphonic acid 90%, styrene phosphatase 11 0%), 140g supplementary catching agent (P86), 30g foaming agent
(terpinol) carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected,
Concentration times can be 1 time, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 25%, based on ore per ton, according to
Secondary addition pH regulator adjusts pH values of pulp to 8,750g activator (plumbi nitras), 2000g collecting agent (collecting agent DRG-01, by
The raw material of following mass percents is made: p-toluene sulphonic acid 90%, styrene phosphatase 11 0%), 70g supplementary catching agent (P86), 15g
Foaming agent (terpinol) carries out tin-lead soldering and scans, and scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtains
Obtain tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
Grade is 38.56wt%, the rate of recovery 12.78%, rich medium tin ore grade in the qualified Tin concentrate that step (10) obtains
For 5.63 wt %, grade is greater than 40wt% after final all Tin concentrates merge, and reaches a kind of Tin concentrate quality standard, the rate of recovery is
78.32%。
Embodiment 2
As shown in Figure 1, the fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) (Burma's tin ore raw ore tin grade is 0.6wt% to fine grain teeth cloth cassiterite mine, and main mineral composition is tin
Stone, pyrite, quartz, calcite etc..) through rod mill ore grinding 80% is accounted for -0.074mm, sizing mixing to pulp density is 25wt%, is pressed
Ore meter per ton successively adds 150g copper sulphate and 2000g oxalic acid adjusts agent, and 200g butyl xanthate makees collecting agent, 20g pine tar
Alcohol makees foaming agent, carries out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected, concentration times
It can be 1 time, cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is that 25wt% successively adds based on ore per ton
75g copper sulphate and 1000g oxalic acid is added to adjust agent, 100g butyl xanthate makees collecting agent, and 10g terpinol is made foaming agent, swept
Choosing, scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtain pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate (product
Position is 42.16wt%, reaches a kind of Tin concentrate quality standard, the rate of recovery 39.24%) and spiral chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate (grade 41.11wt% reaches a kind of Tin concentrate quality standard, the rate of recovery 21.34%) and centrifugal ore separator weight
Tin concentrate (concentrate grade 37.08wt%, the rate of recovery 5.20%) is selected to be incorporated as qualified Tin concentrate, tailing is incorporated as finally
Tailing；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 25wt%, successively adds pH regulator
(sodium carbonate) adjusts pH values of pulp to 8,1500g activator (plumbi nitras), 4000g collecting agent (collecting agent DRG-01, by following matter
The raw material of amount percentage is made: p-toluene sulphonic acid 70%, styrene phosphoric acid 30%), 140g supplementary catching agent (P86), 30g foaming agent
(terpinol) carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected,
Concentration times can be 1 time, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 25%, based on ore per ton, according to
Secondary addition pH regulator adjusts pH values of pulp to 8,750g activator (plumbi nitras), 2000g collecting agent (collecting agent DRG-01, by
The raw material of following mass percents is made: p-toluene sulphonic acid 70%, styrene phosphoric acid 30%), 70g supplementary catching agent (P86), 15g
Foaming agent (terpinol) carries out tin-lead soldering and scans, and scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtains
Obtain tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
Grade is 38.82wt%, the rate of recovery 13.21%, rich medium tin ore grade in the qualified Tin concentrate that step (10) obtains
For 4.23wt%, grade is greater than 40wt% after final all Tin concentrates merge, and reaches a kind of Tin concentrate quality standard, the rate of recovery is
78.99%。
Embodiment 3
As shown in Figure 1, the fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) (Burma's tin ore raw ore tin grade is 0.5wt% to fine grain teeth cloth cassiterite mine, and main mineral composition is tin
Stone, pyrite, quartz, calcite etc..) through rod mill ore grinding 85% is accounted for -0.074mm, sizing mixing to pulp density is 25wt%, is pressed
Ore meter per ton successively adds 150g copper sulphate and 2000g oxalic acid adjusts agent, and 200g butyl xanthate makees collecting agent, 20g pine tar
Alcohol makees foaming agent, carries out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected, concentration times
It can be 1 time, cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is that 25wt% successively adds based on ore per ton
75g copper sulphate and 1000g oxalic acid is added to adjust agent, 100g butyl xanthate makees collecting agent, and 10g terpinol is made foaming agent, swept
Choosing, scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtain pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate (product
Position is 42.69wt%, reaches a kind of Tin concentrate quality standard, the rate of recovery 40.53%) and spiral chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate (grade 41.46wt% reaches a kind of Tin concentrate quality standard, the rate of recovery 16.87%) and centrifugal ore separator weight
Tin concentrate (concentrate grade 36.22wt%, the rate of recovery 6.63%) is selected to be incorporated as qualified Tin concentrate, tailing is incorporated as finally
Tailing；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 25wt%, successively adds pH regulator
(sodium carbonate) adjusts pH values of pulp to 8,1500g activator (plumbi nitras), 4000g collecting agent (collecting agent DRG-01, by following matter
The raw material of amount percentage is made: p-toluene sulphonic acid 55%, styrene phosphatase 24 5%), 140g supplementary catching agent (P86), 30g foaming agent
(terpinol) carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 25wt%, and progress blank is selected,
Concentration times can be 1 time, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 25%, based on ore per ton, according to
Secondary addition pH regulator adjusts pH values of pulp to 8,750g activator (plumbi nitras), 2000g collecting agent (collecting agent DRG-01, by
The raw material of following mass percents is made: p-toluene sulphonic acid 55%, styrene phosphatase 24 5%), 70g supplementary catching agent (P86), 15g
Foaming agent (terpinol) carries out tin-lead soldering and scans, and scanning number can be 1 time, and scavenger concentrate sequence returns to upper level flotation, obtains
Obtain tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
Grade is 34.82wt%, the rate of recovery 14.21%, rich medium tin ore grade in the qualified Tin concentrate that step (10) obtains
For 7.23wt%, grade is greater than 40wt% after final all Tin concentrates merge, and reaches a kind of Tin concentrate quality standard, the rate of recovery is
78.24%。
Embodiment 4
As shown in Figure 1, the fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) (Burma's tin ore raw ore tin grade is 0.5wt% to fine grain teeth cloth cassiterite mine, and main mineral composition is tin
Stone, pyrite, quartz, calcite etc..) through rod mill ore grinding 70% is accounted for -0.074mm, sizing mixing to pulp density is 15wt%, is pressed
Ore meter per ton successively adds 50g copper sulphate and 500g oxalic acid adjusts agent, and 100g butyl xanthate makees collecting agent, 10g terpinol
Make foaming agent, carry out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 15wt%, and progress blank is selected, concentration times
It can be 5 times, cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is that 15wt% successively adds based on ore per ton
25g copper sulphate and 250g oxalic acid is added to adjust agent, 50g butyl xanthate makees collecting agent, and 5g terpinol is made foaming agent, scanned,
Scanning number can be 3 times, and scavenger concentrate sequence returns to upper level flotation, obtain pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate (product
Position is 41.03wt%, reaches a kind of Tin concentrate quality standard, the rate of recovery 38.96%) and spiral chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate (grade 40.00wt% reaches a kind of Tin concentrate quality standard, the rate of recovery 19.37%) and centrifugal ore separator weight
Tin concentrate (concentrate grade 35.86wt%, the rate of recovery 5.43%) is selected to be incorporated as qualified Tin concentrate, tailing is incorporated as finally
Tailing；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 15wt%, successively adds pH regulator
(sodium hydroxide) adjusts pH values of pulp to 7,2000g activator (lead acetate), 2000g collecting agent (collecting agent DRG-01, by following
The raw material of mass percent is made: p-toluene sulphonic acid 55%, styrene phosphatase 24 5%), 130g supplementary catching agent (tributyl phosphate),
20g foaming agent (terpinol) carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering roughing tail
Mine；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 15wt%, and progress blank is selected,
Concentration times can be 5 times, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 15%, based on ore per ton, according to
Secondary addition pH regulator (sodium hydroxide) adjusts pH values of pulp to 7,1000g activator (lead acetate), 1000g collecting agent (collecting agent
For DRG-01, it is made of the raw material of following mass percents: p-toluene sulphonic acid 55%, styrene phosphatase 24 5%), 65g assists collecting
Agent (tributyl phosphate), 10g foaming agent (terpinol) carry out tin-lead soldering and scan, and scanning number can be 3 times, and scavenger concentrate is suitable
Sequence returns to upper level flotation, obtains tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
Grade is 33.67wt%, the rate of recovery 12.02%, rich medium tin ore grade in the qualified Tin concentrate that step (10) obtains
For 6.12wt%, grade is greater than 40wt% after final all Tin concentrates merge, and reaches a kind of Tin concentrate quality standard, the rate of recovery is
77.63%。
Embodiment 5
As shown in Figure 1, the fine grain teeth cloth cassiterite beneficiation method, the specific steps of which are as follows:
(1) (Burma's tin ore raw ore tin grade is 0.5wt% to fine grain teeth cloth cassiterite mine, and main mineral composition is tin
Stone, pyrite, quartz, calcite etc..) through rod mill ore grinding 90% is accounted for -0.074mm, sizing mixing to pulp density is 45wt%, is pressed
Ore meter per ton successively adds 400g copper sulphate and 3000g oxalic acid adjusts agent, and 500g butyl xanthate makees collecting agent, 40g pine tar
Alcohol makees foaming agent, carries out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur rougher tailings；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 35wt%, and progress blank is selected, concentration times
It can be 3 times, cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is 45wt%, based on ore per ton, successively
Addition 200g copper sulphate and 1500g oxalic acid adjust agent, and 250g butyl xanthate makees collecting agent, and 20g terpinol makees foaming agent, carry out
It scans, scanning number can be 2 times, and scavenger concentrate sequence returns to upper level flotation, obtain pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate (product
Position is 43.55wt%, reaches a kind of Tin concentrate quality standard, the rate of recovery 41.32%) and spiral chute tailing；
(5) the spiral chute tailing that step (4) obtains is classified, acquisition+0.053mm coarse fraction, 0.053 ~
0.038mm intermediate fraction and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to shaking table weight respectively
Choosing obtains table concentrate, chats and tailing, and -0.038mm fine fraction obtains Tin concentrate and tailing using centrifugal ore separator gravity treatment,
Table concentrate (grade 43.62wt% reaches a kind of Tin concentrate quality standard, the rate of recovery 23.07%) and centrifugal ore separator weight
Tin concentrate (concentrate grade 39.62wt%, the rate of recovery 5.0%) is selected to be incorporated as qualified Tin concentrate, tailing is incorporated as finally
Tailing；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 45wt%, successively adds pH regulator
(sodium hydroxide and sodium carbonate mixture that mass ratio is 1:1) adjusts pH values of pulp to 9,1800g activator (lead acetate), 3000g
(collecting agent DRG-01 is made collecting agent of the raw material of following mass percents: p-toluene sulphonic acid 55%, styrene phosphoric acid
45%), 136g supplementary catching agent (tributyl phosphate), 40g foaming agent (terpinol) carry out a tin-lead soldering roughing, obtain tin
Stone roughing flotation concentrate and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 35wt%, and progress blank is selected,
Concentration times can be 4 times, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 45%, based on ore per ton, according to
Secondary addition pH regulator (sodium hydroxide and sodium carbonate mixture that mass ratio is 1:1) adjusts pH values of pulp to 9,900g activator
(lead acetate), 1500g collecting agent (collecting agent DRG-01 is made of the raw material of following mass percents: p-toluene sulphonic acid 55%,
Styrene phosphatase 24 5%), 68g supplementary catching agent (tributyl phosphate), 20g foaming agent (terpinol) carries out tin-lead soldering and scans,
Scanning number can be 2 times, and scavenger concentrate sequence returns to upper level flotation, obtain tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu
Chats.
Grade is 39.65wt%, the rate of recovery 14.86%, rich medium tin ore grade in the qualified Tin concentrate that step (10) obtains
For 5.61wt%, grade is greater than 40wt% after final all Tin concentrates merge, and reaches a kind of Tin concentrate quality standard, the rate of recovery is
80.87%。
In conjunction with attached drawing, the embodiment of the present invention is explained in detail above, 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 (6)
1. a kind of fine grain teeth cloth cassiterite beneficiation method, it is characterised in that specific step is as follows:
(1) fine grain teeth cloth cassiterite mine accounts for 70% ~ 90% to -0.074mm through rod mill ore grinding, size mixing to pulp density be 15wt% ~
45wt% successively adds 50 ~ 400g copper sulphate and 500 ~ 3000g oxalic acid adjusts agent, 100 ~ 500g butyl based on ore per ton
Xanthate makees collecting agent, and 10 ~ 40g terpinol makees foaming agent, carries out a pre-desulfurization roughing flotation, obtains sulphur rough concentrate and sulphur is thick
Select tailing；
(2) the sulphur rough concentrate that step (1) obtains is sized mixing to pulp density is 15wt% ~ 35wt%, and progress blank is selected, selected time
Number is 1 ~ 5 time, and cleaner tailings sequence returns to upper level flotation, obtains iron concentrate；
(3) the sulphur rougher tailings that step (1) obtains is sized mixing to pulp density is 15wt% ~ 45wt%, based on ore per ton, medicament
Type is identical as step (1) roughing, and dosage halves, and is scanned, and scanning number is 1 ~ 3 time, and scavenger concentrate sequence returns to upper one
Grade flotation, obtains pre- desulfurization tailing；
(4) the pre- desulfurization tailing for obtaining step (3) enters spiral chute gravity treatment roughing tin, obtains qualified Tin concentrate and spiral is slipped
Slot tailing；
(5) the spiral chute tailing that step (4) obtains is classified, in acquisition+0.053mm coarse fraction, 0.053 ~ 0.038mm
Etc. grades and three products of -0.038mm fine fraction；
(6)+0.053mm coarse fraction and 0.053 ~ 0.038mm intermediate fraction that step (5) obtains are subjected to table concentration respectively,
Table concentrate, chats and tailing are obtained, -0.038mm fine fraction obtains Tin concentrate and tailing, shaking table using centrifugal ore separator gravity treatment
Concentrate and centrifugal ore separator gravity treatment Tin concentrate are incorporated as qualified Tin concentrate, and tailing is incorporated as true tailings；
(7) the shaking table chats for obtaining step (6) merges, and sizing mixing to pulp density is 15wt% ~ 45wt%, successively adds pH adjustment
Agent adjusts pH values of pulp to 7 ~ 9,1500 ~ 2000g activator, 2000 ~ 4000g collecting agent, 130 ~ 140g supplementary catching agent, 20 ~ 40g
Foaming agent carries out a tin-lead soldering roughing, obtains tin-lead soldering rougher concentration and tin-lead soldering rougher tailings；
(8) the tin-lead soldering rougher concentration that step (7) obtains is sized mixing to pulp density is 15wt% ~ 35wt%, carries out blank essence
Choosing, concentration times are 1 ~ 5 time, and cleaner tailings sequence returns to upper level flotation, obtain tin rough concentrate；
(9) the tin-lead soldering rougher tailings that step (7) obtains is sized mixing to pulp density is 15% ~ 45%, based on ore per ton, according to
Secondary addition pH regulator adjusts pH values of pulp to 7 ~ 9, and other all medicament kinds are identical as step (7) roughing, and dosage halves, and carry out
Tin-lead soldering is scanned, and scanning number is 1 ~ 3 time, and scavenger concentrate sequence returns to upper level flotation, obtains tailing；
(10) tin rough concentrate for obtaining step (8) is selected through centrifugal ore separator gravity treatment, obtains qualified Tin concentrate and Xi Fu chats.
2. fine grain teeth cloth cassiterite beneficiation method according to claim 1, it is characterised in that: the step (7) and step
(9) pH regulator is two kinds of mixtures of one of sodium carbonate, sodium hydroxide or arbitrary proportion in.
3. fine grain teeth cloth cassiterite beneficiation method according to claim 1, it is characterised in that: the step (7) and step
(9) activator is plumbi nitras or lead acetate in.
4. fine grain teeth cloth cassiterite beneficiation method according to claim 1, it is characterised in that: the step (7) and step
(9) collecting agent is DRG-01 in, is made of the raw material of following mass percents: p-toluene sulphonic acid 55 ~ 90%, styrene phosphatase 11 0 ~
45%。
5. fine grain teeth cloth cassiterite beneficiation method according to claim 1, it is characterised in that: the step (7) and step
(9) supplementary catching agent tributyl phosphate or P86 in.
6. fine grain teeth cloth cassiterite beneficiation method according to claim 1, it is characterised in that: the step (7) and step
(9) foaming agent is terpinol in.
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| CN110935556A (en) * | 2019-11-19 | 2020-03-31 | 长安大学 | Flotation recovery method for ultrafine-grained cassiterite |
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| CN115155824B (en) * | 2022-07-05 | 2024-01-26 | 中南大学 | Mineral separation method for recovering tin from tin-containing fine mud |
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| CN110935556A (en) * | 2019-11-19 | 2020-03-31 | 长安大学 | Flotation recovery method for ultrafine-grained cassiterite |
| CN110935556B (en) * | 2019-11-19 | 2020-09-04 | 长安大学 | Flotation recovery method for ultrafine-grained cassiterite |
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