CN104759340B - It is a kind of to tin flotation rough concentrate process for subsequent treatment and its commercial Application - Google Patents
It is a kind of to tin flotation rough concentrate process for subsequent treatment and its commercial Application Download PDFInfo
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- CN104759340B CN104759340B CN201510011570.5A CN201510011570A CN104759340B CN 104759340 B CN104759340 B CN 104759340B CN 201510011570 A CN201510011570 A CN 201510011570A CN 104759340 B CN104759340 B CN 104759340B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
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Abstract
The present invention provides a kind of process of tin flotation rough concentrate reprocessing, it is characterised in that methods described includes tin flotation concentrate carrying out gravity treatment reprocessing recovery by efficient centrifugal equipment, by the gravity treatment middling recurrence tin floatation system of acquisition.The present invention is reclaimed by above-mentioned process, tin flotation concentrate using efficient centrifugal equipment, obtains final Tin concentrate grade 40%, operation recovery more than 70%, the index to selecting the rate of recovery of factory's raw ore more than 11%.Efficient centrifugal equipment and flotation are closed circuit, and chats directly returns to tin floatation system, avoid the loss of intermediate product.
Description
Technical field
The present invention relates to a kind of to tin flotation rough concentrate process for subsequent treatment and its commercial Application.
Background technology
China's Tin Resources enrich, and distributed areas are wide.Mainly based on primary deposit, wherein association component is more, comprehensive profit
It is big with value.Cassiterite (SnO2) it is the tin mineral that contains mainly reclaimed, stannite (or stannite) takes second place.More than 75% tin metal is come
Come from cassiterite.
Cassiterite (SnO2) density (6.8~7.0g/cm3) bigger than the gangue mineral of symbiosis.Gravity treatment cost is low, environmentally friendly.
Therefore, gravity separation is to produce the Conventional processing methods of Tin concentrate.But with the passage of recovery time, in milling ore
Cassiterite granularity constantly attenuates, and -38 μm of grades only are difficult to effectively reclaim by gravity separation.Floatation process and selective flocculation technique are
The effective means and approach of fine fraction cassiterite recovery.At present in tin Oxidized copper ores field, each scientific research institutions widely grind
Study carefully and achieve some achievements, but on final qualified Tin concentrate product is obtained, still do not break through, or only obtain low product
Position Tin concentrate；Either obtain high-grade Tin concentrate and the rate of recovery is relatively low.
Mengzi Yunnan mining and metallurgy company makees troilite activator with Y-11, MA make troilite collecting agent carry out desulfurization, carbonic acid
Sodium is collectors for cassiterite as PH regulators, Salicyl Hydroximic Acid, hydroxamic acid, P86, to stanniferous 0.25% gravity treatment to -74 μm of ore deposit
Grade has carried out tin-lead soldering experimental study, and a flotation can obtain tin rough concentrate grade 1.81%, operation recovery
80.86%, recycle that flotation column is selected obtains Tin concentrate grade 10.41%, the index of operation recovery 84.13%.The examination
Although check system operation recovery has 68%, but obtain final Tin concentrate grade and there was only 10.41%, and fails industrially should
With.
Yunnan Hua Lian Xin Yin limited companies have carried out commercial Application on the basis of experimental study, the results showed that use
Pre-desulfurization++ three sections of iron removaling desliming+secondary desulfuration flow, utilizes new collector GY-C3Handle stanniferous 0.3%~0.5%
Raw material, it can obtain the tin rough concentrate that stanniferous 4%~5%, rate of recovery reaches 80%.The experiment concentrate grade is low, and at present not
Produced on-site can be applied to.
Guangzhou Research Institute of Nonferrous Metals 2012 adjusts agent to my company's gravity tailings using CA+CB, WA+WP makees collecting
Agent, CMC make inhibitor, have carried out industrial experiment research, when being selected in ore deposit 0.89%, obtain tin grade 12.13%, flotation is made
The tin rough concentrate of the industry rate of recovery 62.54%, recycle rapid table to obtain Tin concentrate grade 40.29%, experiment is reclaimed to ore deposit
Rate 31.75%, the index to selecting factory's raw ore rate of recovery 12.62%.But when shaking table reclaims tin flotation concentrate, the shaking table rate of recovery is not
To 50%, in-between product and mine tailing cause the loss again of flotation target minreal.
Linwu County south Mining Limited Company (hereinafter referred to as " company ") beautiful ridge polymetallic ore is lead antimony zinc sulphur tin silver
Indium polymetallic deposit, rich in a variety of valuable metals such as lead, zinc, antimony, silver, tin, iron, major product be lead antimony compound refined mine, zinc concentrate,
Tin concentrate, by-product iron concentrate individually reclaim, and silver and indium are enriched in lead antimony compound refined mine and zinc concentrate and reclaimed respectively.Belonging to company
It is the mineral processing circuit that " flotation-magnetic separation-gravity treatment " is combined to select factory, in the recovery process of tin, using " based on shaking table,
Supplemented by woollen blanket machine+yurt " traditional gravity treatment recovery process, the shaking table rate of recovery 52~54%, " woollen blanket machine+yurt " rate of recovery
6~8%.Because beneficiation flowsheet and technique need, there is cassiterite and cross crushing phenomenon, cause thin in mog 65%~70%
Grade not Te Bieshi microfine rank be difficult to effectively reclaim in gravity treatment.
The content of the invention
To overcome above mentioned problem, the present inventor is not returned only effectively by flotation to the following rank cassiterite of fine fraction
Receive, and it is closed circuit by using efficient centrifugal equipment and tin flotation, while qualified Tin concentrate product grade is ensured, avoid
Intermediate product causes the loss of tin flotation target minreal, improves comprehensive recovery.
The present invention is achieved through the following technical solutions：
A kind of process of tin flotation rough concentrate reprocessing, it is characterised in that methods described includes tin flotation is coarse-fine
Ore deposit carries out gravity treatment reprocessing recovery by efficient centrifugal equipment, by the gravity treatment middling recurrence tin floatation system of acquisition.
According to the present invention, after the progress gravity treatment reprocessing recycling step by efficient centrifugal equipment, three kinds of products are obtained：
Gravity concentrate, gravity treatment chats, gravity tailings.
According to the present invention, the gravity concentrate is as final products.
According to the present invention, the gravity tailings converges as total mine tailing with tin flotation tailing.
According to the present invention, the tin flotation rough concentrate carries out weight after at least once selected by efficient centrifugal equipment
Choosing reprocessing recovery.Preferably, it is most preferably, selected by four times by least twice, or at least three times.
According to the preferred scheme of the present invention, the tin flotation concentrate is selected from the 4th selected froth pulp of tin floatation system.
According to the present invention, the efficient centrifugal equipment is Efficient centrifugal ore separator.The centrifugal ore separator is mainly by centrifuging
Rotary drum, frame, mine-feeding equipment, concentrate rinse water arrangement, rinse water installations, point ore deposit device etc. composition.Preferably, the centrifugation turns
Drum is horizontal type structure.
According to the present invention, the process of the tin flotation rough concentrate reprocessing, the advance of gravity treatment reprocessing is additionally included in
Row flotation.The flotation preferably includes following steps：
(1) to overflow, (overflow can be the overflow of gravity treatment raw ore or the overflow of gravity tailings, either
Both mixing overflows) magnetic separation is first carried out, obtain magnetic product and non-magnetic product；
(2) non-magnetic product after magnetic separation is concentrated；
(3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes at least twice selected and at least three times
Scan；
Overflow water backwater circulation after wherein concentrating utilizes.Wherein selected rear acquisition iron concentrate.
According to the present invention, the flotation still further comprises following steps：
(4) product of (preferably desulfurization flotation is scanned) carries out tin-lead soldering by medicament composition after step (3) is scanned
Roughing；
(5) product after tin-lead soldering roughing is carried out to selected (preferably at least four times) respectively and scans (preferably at least three
It is secondary).
According to the present invention, the overflow is the overflow of gravity tailings.Preferably, it is pre- to+150 μm of progress of gravity tailings first
Tail is first thrown, obtains the overflow of -150 μm of grades.
According to the present invention, the overflow is the overflow of gravity treatment raw ore.Preferably, it is pre- to+150 μm of progress of gravity treatment raw ore first
Tail is first thrown, obtains the overflow of -150 μm of grades.
According to the present invention, further preferably overflow after classification size mixing technology is carried out first to gravity treatment raw ore or gravity tailings
Stream.It is highly preferred that the flotation Tin concentrate can also be the flotation Tin concentrate for Grading Overflow of being sized mixing in advance to gravity treatment raw ore.This hair
In bright, gravity treatment raw ore is sized mixing in advance, and to may refer to applicant entitled " a kind of in what is submitted on the same day for the technology of Grading Overflow
Gravity treatment raw ore is sized mixing stage division and its application in advance " patent application, it is incorporated herein by reference.Gravity tailings
The technique that Grading Overflow of sizing mixing in advance is referred to gravity treatment raw ore is equally carried out.
According to the preferred technical solution of the present invention, the processing step for sizing mixing classification in advance includes：To gravity treatment raw ore or
The underflow of gravity tailings carries out gravity treatment and the technique of flotation is carried out to overflow, and the classification of sizing mixing in advance is included microfine rank
Sludge and the optional size fraction of shaking table, the microfine rank sludge enter flotation as overflow, and the optional grade of shaking table is made
Enter gravity treatment for underflow.
In the present invention, the microfine rank is -38 μm (i.e. less than 38 μm grades), is preferably -19 μm；The optional grain of shaking table
Level is+19 μm, preferably+38 μm (i.e. more than or equal to 38 μm grades).Because shaking table is fine for+38 μm of cassiterite recovering effect,
The cassiterite of right+19 μm -38 μm (being less than 38 μm i.e. more than or equal to 19 μm), has certain gravity treatment effect, but almost do not have for -19 μm
There is a recovering effect, therefore the present invention alleviates the load of shaking table by the way that the cassiterite of micro-size fraction is sized mixing classification in advance.
According to the present invention, the medicament composition used in the floatation process can be the conventional dose of this area, more excellent
The medicament composition that choosing is developed using the applicant, wherein can be found in applicant in submit on the same day entitled " cassiterite floats
Select medicament composition " patent application, it is incorporated herein by reference.
According to the present invention, the medicament composition includes：Collecting agent and composite restrainer, the collecting agent are caught for chelating type
Receive agent, including styryl phosphonic acid；The composite restrainer is selected from prodan, calgon, vulcanized sodium or its inorganic mixing
Thing.
According to the present invention, the medicament composition can be made up of collecting agent and composite restrainer.
According to the present invention, the composition also includes supplementary catching agent.
According to the present invention, the medicament composition can be made up of collecting agent, composite restrainer and supplementary catching agent.
According to the present invention, the collecting agent be selected from BK series (researched and developed by Beijing Mine and Metallurgy General Inst, can with commercially-available,
Such as BK412), K series (researched and developed by Hunan Research Institute of Non-ferrous Metals, can with commercially-available, such as K) or NFB series (by Shen
Ask someone voluntarily to research and develop, can with commercially-available, such as NFB-1), most preferably, the collecting agent is NFB-1.
According to the present invention, it is serial (such as NFY-1) that the composite restrainer is selected from NFY.
According to the present invention, the supplementary catching agent is WP.
According to the present invention, the medicament composition is made up of collecting agent NFB series and composite restrainer NFY series.It is more excellent
Selection of land, the medicament composition are made up of collecting agent NFB-1 and composite restrainer NFY-1.
According to the present invention, the medicament composition is by collecting agent NFB series, composite restrainer NFY series and auxiliary collecting
Agent WP is formed.It is highly preferred that the medicament composition is by collecting agent NFB-1, composite restrainer NFY-1 and supplementary catching agent WP groups
Into.
According to the present invention, in the medicament composition, the dosage of collecting agent is 100-1100g/t, preferably 150-820g/t,
More preferably 200-600g/t.The dosage of composite restrainer is 15-600g/t, 20-300g/t, 30-200g/t, further preferably 40-
150g/t, even more preferably from 60-100g/t.When comprising supplementary catching agent, the dosage of the supplementary catching agent is 10-100g/t,
It is preferred that 20-80g/t, further preferably 30-60g/t.The dosage is on the basis of the cassiterite ore deposit weight for treating flotation.
According to the present invention, the medicament composition is used in cassiterite selected flotation for the first time, and the dosage of wherein collecting agent is excellent
Elect 100-200g/t, more preferably 100-150g/t as；The dosage of composite restrainer is 15-50g/t, more preferably 20-30g/t.Institute
Dosage is stated on the basis of the cassiterite ore deposit weight for wanting flotation.
According to the present invention, during the medicament composition is scanned for cassiterite, it is preferred for scanning with third time for the first time.Its
Described in dosage be preferably：The dosage of wherein collecting agent is preferably 100-300g/t, more preferably 100-200g/t；Composite restrainer
Dosage be 15-60g/t, more preferably 20-40g/t.The dosage is on the basis of the cassiterite ore deposit weight for wanting flotation.When including auxiliary
During collecting agent, the dosage of the supplementary catching agent is 20-80g/t, preferably 30-50g/t, and the dosage is to want the cassiterite ore deposit of flotation
On the basis of weight.
According to the preferred technical solution of the present invention, the dosage of the collecting agent is 1050g/t.The use of the composite restrainer
Measure as 420g/t.When containing supplementary catching agent, the dosage of the supplementary catching agent is 40-50g/t.
According to another optimal technical scheme of the present invention, the NFB-1 is 1050g/t, and NFY-1 420g/t, WP are
40g/t.It is preferred that the medicament is used for classification of sizing mixing in advance.
According to the present invention, in step (4), the preferred NFB-1 of medicament composition is 600g/t, WP 30g/t, NFY-1
For 200g/t.
According to the present invention, in step (5), the floating agent during the first time is selected is that NFB-1 is 150g/t and NFY-1
For 30g/t.When third time is selected, addition NFB-1 is 150g/t and NFY-1 is 30g/t, WP 10g/t.
The first time scan in floating agent be that NFB-1 is 200g/t, WP is 10g/t and NFY-1 is 150g/t.
Addition NFB-1 is 100g/t when the third time is scanned and NFY-1 is 40g/t.
In the present invention, the dosage of all collecting agents, composite restrainer and supplementary catching agent is to treat the cassiterite ore deposit of flotation
On the basis of weight.
In the present invention, the NFB series is the collecting agent that applicant voluntarily develops, using phosphoric acid ester having as main component
Machine mixture, belongs to Chelating Collectors.Wherein NFB series contains 30~50wt% of styryl phosphonic acid, aliphatic phosphonic acids (preferably C6
~C8Aliphatic) 20~30wt%, 10~20wt% of alkyl sulfosuccinate, 10~20wt% of alkyl hydroximic acid.
The physicochemical property of the NFB-1：Pink to be slightly soluble in water to orange red solid powder, property is stable, to be safe and efficient
Oxide mineral collector.Proportion：1.53g/cm3；Fusing point：165-168℃；Active ingredient：Ore dressing activity substance content >=70%.
In the present invention, the NFY series is also the composite restrainer that applicant voluntarily develops, and belongs to inorganic salts synthesis suppression
Preparation, main component are the inorganic mixture of prodan, calgon, vulcanized sodium etc..Can also be commercially available.NFY systems
Row have the characteristics of soluble good, capacity of decomposition is strong, nonpoisonous and tasteless, environment-friendly high-efficiency, NFY be mainly used in silicate, calcite,
The inhibitory action of barite, galena, garnet etc..
Wherein, the physicochemical property of the NFY-1：White solid powder is odorless, tasteless, nontoxic, be soluble in graininess
Water, property is stable, is the good inhibitor of tin-lead soldering.Proportion：2.53g/cm3；Active ingredient：Ore dressing activity substance content >=
65%.
The centrifugal ore separator of the present invention is the Selective Separation that mine particle group is realized using the density variation between different ore particles,
Have the characteristics that separation index is good, energy consumption is small, strong adaptability, free from environmental pollution.
The operation principle of centrifugal ore separator of the present invention is as follows：Centrifugal ore separator revolving horizontal drum is revolved at a high speed with certain revolution
Turn, ore pulp to ore deposit by dividing ore deposit device to be sent on the inwall of rotary drum.Ore pulp rotates at a high speed with drum, under the influence of centrifugal force, weight ore deposit
Thing is deposited on the inwall of rotary drum and rotated with rotary drum, the light ore particle in ore pulp with certain differential with drum rotating,
With certain helical angle from, along rotary drum gradient direction to mine-discharging terminal rotational flow, dividing to ore deposit end to end through ore discharge in rotary course
Ore deposit device is discharged, as mine tailing.To leave original normal position automatically to ore deposit mine distributor after the sorting of certain period of time, stop to turning
Ore deposit is given in drum, after mine tailing is drained, ore discharge mine distributor leaves former normal position and prepares interception concentrate automatically, then high-pressure washing water
Valve automatically opens up, and high-pressure washing water sweeps away the concentrate being deposited on drum inner wall, and concentrate punches rear high-pressure water valve and closed automatically,
After concentrate is drained, ore discharge mine distributor, being automatically reset to ore deposit mine distributor starts next to sort circulation.
According to the present invention, the gravity concentrate refers to efficient centrifugal equipment to final after the reprocessing recovery of tin flotation concentrate
Product.
According to the present invention, the gravity treatment chats refers to that efficient centrifugal equipment is reprocessed in removal process to tin flotation concentrate
Intermediate products.
According to the present invention, the gravity tailings refer to efficient centrifugal equipment to tin flotation concentrate reprocess removal process in can
To abandon the product for throwing tail.
The advantageous effects of the present invention：
1st, commercial Application realizes effectively recovery of the gravitational separation equipment to tin flotation concentrate, overcomes gravitational separation equipment to fine rank
The technical barrier of cassiterite recovery, solve fine rank cassiterite recovery for ore dressing worker and researched and proposed new thinking and exploration side
To.
2nd, closed-circuit system is formed by the efficient centrifugal equipment and tin flotation, avoided in the recovery to tin flotation concentrate
Presence of the intermediate product as stand-alone product form in journey, having prevented intermediate products can not reclaim and cause tin flotation target minreal
Loss again, or bring the environmental issue of environmental pollution using fuming recovery intermediate products.
3rd, tin flotation concentrate is reclaimed using efficient centrifugal equipment, obtains final Tin concentrate grade 40%, operation recovery
More than 70%, to selecting the index of the rate of recovery of factory's raw ore more than 11%.The technical indicator of commercial Application is compared similar with economic indicator
Mine tin-lead soldering experimental study index has obvious advantage.
Brief description of the drawings
Fig. 1 is that flotation concentrate of the present invention reprocesses whole process figure.
Wherein, concrete technology step is as follows：
(1) table concentration is conventionally carried out to gravity tailings；Gravity tailings can be carried out throwing tail in advance；
(2) flotation is carried out to -150 μm of grades in gravity tailings, comprised the following steps：
(2.1) magnetic separation is carried out to -150 μm of fine fraction of acquisition first, obtains magnetic product and non-magnetic product；
(2.2) non-magnetic product after magnetic separation is concentrated, wherein the overflow water circulation use after concentration；
(2.3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes twice selected and scanning three times；
(2.4) product after scanning is subjected to tin-lead soldering roughing by medicament composition；
(2.5) product after tin-lead soldering roughing is carried out respectively four times it is selected and scan three times；
(2.6) product after selected is entered into Efficient centrifugal ore separator and obtains Tin concentrate,
(2.7) product after scanning three times obtains mine tailing.
Fig. 2 gravity treatment raw ores of the present invention size mixing in advance Grading Overflow flotation concentrate reprocessing whole process figure.
(1) classification of sizing mixing is carried out in advance to gravity treatment raw ore, by -19 μm of microfine rank sludges, the optional grain of+38 μm of shaking table
Level and+150 μm, the microfine rank sludge enters flotation as overflow, and the optional grade of shaking table is as underflow entrance
Gravity treatment；
(2) underflow to classification of sizing mixing in advance conventionally carries out table concentration；
(3) flotation is carried out to the overflow sized mixing in advance point, comprised the following steps：
(3.1) magnetic separation is first carried out to overflow, obtains magnetic product and non-magnetic product；(3.2) will be non magnetic after magnetic separation
Product is concentrated；
(3.3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes twice selected and scanning three times；
(3.4) product after step (3.3) is scanned carries out tin-lead soldering roughing by medicament composition；
(3.5) product after tin-lead soldering roughing is carried out respectively four times it is selected and scan three times；
(3.6) product of the step (3.5) after selected is entered into Efficient centrifugal ore separator and obtains Tin concentrate,
(3.7) product after scanning three times obtains mine tailing.
Embodiment
The present invention is described in detail by following embodiments.But skilled in the art realises that following embodiments are not
Limiting the scope of the invention.Any improvement and change made on the basis of the present invention, all the protection model in the present invention
Within enclosing.
Embodiment 1
To the tin flotation concentrate of gravity tailings by efficient centrifugal equipment recycling technical indicator, 1 is shown in Table.
Wherein specific embodiment is as follows：
(1) the gravity treatment raw ore of Linwu County south Mining Limited Company jade ridge polymetallic ore is conventionally carried out
Table concentration；
(2) flotation is carried out to gravity tailings, comprised the following steps：
(2.1) magnetic separation is carried out first, obtains magnetic product and non-magnetic product；The tin grade of wherein magnetic product is
0.23%, the tin grade of non-magnetic product is 0.73%；
(2.2) non-magnetic product after magnetic separation is concentrated；
(2.3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes twice selected and scanning three times；Sulphur
The tin grade of the iron concentrate obtained after flotation is 0.38%；The tin grade of sulphur mine tailing is 0.74%.Overflow water after wherein concentrating
Backwater circulation utilizes.
(2.4) product after scanning is subjected to tin-lead soldering roughing by medicament composition；The medicament composition is preferred
NFB-1 is 600g/t, WP 30g/t, NFY-1 200g/t.
(2.5) product after tin-lead soldering roughing is carried out respectively four times it is selected and scan three times；It is wherein selected for the first time
In floating agent be that NFB-1 is 150g/t and NFY-1 is 30g/t；It is 10g/t to add WP when third time is selected.First
It is secondary scan in floating agent be that NFB-1 is 200g/t, WP is 10g/t and NFY-1 is 150g/t.Third time adds when scanning
NFB-1 is 100g/t and NFY-1 is 40g/t.The product of wherein each time selected acquisition returns to last concentration step and carried out respectively
Circulation and stress；Each product for scanning acquisition return respectively the last time scan step carry out circulation and stress.Obtained by flotation
Tin grade is 7.36% in flotation Tin concentrate.The tin grade of tin flotation tailing is 0.29%.
(2.6) product after selected is entered to the tin of Efficient centrifugal ore separator acquisition Tin concentrate, wherein gravity concentrate
Grade 40.21%；The tin grade of gravity tailings is 2.03%；
(2.7) product after scanning three times obtains mine tailing, and the tin grade of total mine tailing is 0.66%.
To sum up and table 1 is visible, and flow is to ore deposit tin grade 0.66%, flotation Tin concentrate grade 7.36%, to giving the ore deposit rate of recovery
60.34%.Tin flotation concentrate sorts to obtain tin grade 40.21%, to the conjunction to the ore deposit rate of recovery 46.05% through efficient centrifugal equipment
Lattice Tin concentrate.
Table 1 is to gravity tailings flotation Tin concentrate recycling technical indicator
Embodiment 2
The flotation Tin concentrate of Grading Overflow of being sized mixing in advance to gravity treatment raw ore passes through efficient centrifugal equipment recycling technical indicator
It is shown in Table 2.
Wherein specific embodiment is as follows：
(1) the gravity treatment raw ore of Linwu County south Mining Limited Company jade ridge polymetallic ore is carried out sizing mixing in advance point
Level, by -19 μm of microfine rank sludges, the optional grade of+38 μm of shaking table and+150 μm, the microfine rank sludge conduct
Overflow enters flotation, and the optional grade of shaking table enters gravity treatment as underflow；+ 150 μm of grade Metal Distribution rates only have 2.15%,
But yield occupies 9.82%, and the overwhelming majority is intergrowth.After the rank enters floatation system, effective target minreal can be disturbed
Recovery, influence sorting index.Therefore concentrate grade and the rate of recovery are improved using throwing tail mode in advance.
(2) underflow to classification 81.35% product distribution of sizing mixing in advance conventionally carries out table concentration；
(3) flotation is carried out to 18.65% overflow of classification of sizing mixing in advance, comprised the following steps：
(3.1) magnetic separation is first carried out to overflow, obtains magnetic product and non-magnetic product；The tin grade of wherein magnetic product is
0.41%, the tin grade of non-magnetic product is 0.76%；
(3.2) non-magnetic product after magnetic separation is concentrated；
(3.3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes twice selected and scanning three times；Sulphur
The tin grade of the iron concentrate obtained after flotation is 0.34%；The tin grade of sulphur mine tailing is 0.76%.Overflow water after wherein concentrating
Backwater circulation utilizes.
(3.4) product after step (3.3) is scanned carries out tin-lead soldering roughing by medicament composition；The medicament group
The preferred NFB-1 of compound is 600g/t, WP 30g/t, NFY-1 200g/t.
(3.5) product after tin-lead soldering roughing is carried out respectively four times it is selected and scan three times；It is wherein selected for the first time
In floating agent be that NFB-1 is 150g/t and NFY-1 is 30g/t；Third time it is selected when add NFB-1 be 150g/t and
NFY-1 is 30g/t, WP 10g/t.Floating agent in scanning for the first time is that NFB-1 is 200g/t, and WP is 10g/t and NFY-1
For 150g/t.Addition NFB-1 is 100g/t when third time is scanned and NFY-1 is 40g/t.The product of wherein each time selected acquisition point
Last concentration step is not returned carries out circulation and stress；Each product for scanning acquisition return respectively the last time scan step progress
Circulation and stress.Tin grade is 6.52% in the flotation Tin concentrate obtained by flotation.The tin grade of tin flotation tailing is 0.32%.
(3.6) product of the step (3.5) after selected is entered into Efficient centrifugal ore separator and obtains Tin concentrate, wherein centrifuging
The Tin concentrate grade 41.23% of machine；The tin grade of centrifuge mine tailing is 1.91%；
(3.7) product after scanning three times obtains mine tailing.
Table 2, to sizing mixing Grading Overflow tin flotation Tin concentrate recycling index in advance
From table 2, when flow is to ore deposit tin grade 0.75%, tin flotation obtains Tin concentrate grade 6.52%, and operation is returned
Yield 61.26%, to flow to the ore deposit rate of recovery 60.09%.Flotation Tin concentrate by centrifugation apparatus obtain tin grade 41.23%,
Operation recovery 74.18%, to final Tin concentrate of the flow to the ore deposit rate of recovery 44.57%.
Embodiment 3, distinct device compare the tin flotation concentrate rate of recovery
Flotation Tin concentrate is reprocessed by different reclaimers, particular technique index is shown in Table 3.
Table 3, distinct device compare the tin flotation concentrate rate of recovery
From the table, tin flotation concentrate is reclaimed using efficient centrifugal equipment, obtains final Tin concentrate grade 40%, operation
The rate of recovery more than 70%, the index to selecting the rate of recovery of factory's raw ore more than 11%.The technical indicator and economic indicator phase of commercial Application
There is obvious advantage than similar mine tin-lead soldering experimental study index.
The present invention forms closed-circuit system by the efficient centrifugal equipment and tin flotation, avoids and is returned to tin flotation concentrate
Presence of the intermediate product as stand-alone product form during receipts, having prevented intermediate products can not reclaim and cause tin flotation purpose
The loss again of mineral, or bring the environmental issue of environmental pollution using fuming recovery intermediate products.
Claims (45)
1. a kind of process of tin flotation rough concentrate reprocessing, it is characterised in that methods described includes leading to tin flotation concentrate
Cross centrifugation apparatus and carry out gravity treatment reprocessing recovery, it is described to pass through centrifugation apparatus by the gravity treatment middling recurrence tin floatation system of acquisition
After carrying out gravity treatment reprocessing recycling step, three kinds of products are obtained：Gravity concentrate, gravity treatment chats, gravity tailings, the gravity tailings
Converge with tin flotation tailing as total mine tailing；
Methods described is additionally included in the floatation process before gravity treatment reprocessing；The flotation comprises the following steps：
(1) magnetic separation is first carried out to overflow, obtains magnetic product and non-magnetic product, wherein the overflow is selected from overflowing for gravity treatment raw ore
The mixing overflow of stream, the overflow of gravity tailings, or both；
(2) non-magnetic product after magnetic separation is concentrated；
(3) product after concentration is subjected to sulphur flotation；The sulphur flotation includes at least twice selected and at least scanning three times；
Overflow water backwater circulation after wherein concentrating utilizes；Wherein selected rear acquisition iron concentrate；
Medicament composition in the floatation process is made up of collecting agent and composite restrainer；
The collecting agent is selected from NFB series；Wherein, NFB series containing 30~50wt% of styryl phosphonic acid, aliphatic phosphonic acids 20~
30wt%, 10~20wt% of alkyl sulfosuccinate, 10~20wt% of alkyl hydroximic acid；
The composite restrainer be selected from NFY series, wherein, described NFY series belongs to inorganic salts synthetic inhibitor, mainly into
It is divided into the inorganic mixture of prodan, calgon, vulcanized sodium.
2. process according to claim 1, it is characterised in that the gravity concentrate is as final products.
3. process according to claim 1, it is characterised in that the tin flotation rough concentrate is after at least once selected
Gravity treatment reprocessing recovery is carried out by centrifugation apparatus.
4. process according to claim 3, it is characterised in that the tin flotation rough concentrate is after at least twice selected
Gravity treatment reprocessing recovery is carried out by centrifugation apparatus.
5. process according to claim 4, it is characterised in that the tin flotation rough concentrate is after at least three times selected
Gravity treatment reprocessing recovery is carried out by centrifugation apparatus.
6. process according to claim 5, it is characterised in that the tin flotation rough concentrate after four times selected by passing through
Centrifugation apparatus carries out gravity treatment reprocessing recovery.
7. process according to claim 6, it is characterised in that the tin flotation concentrate is selected from the 4th essence of tin floatation system
Select froth pulp.
8. process according to claim 1, it is characterised in that the centrifugation apparatus is centrifugal ore separator.
9. process according to claim 8, it is characterised in that the centrifugal ore separator includes centrifugal reel, frame, to ore deposit
Device, concentrate rinse water arrangement, rinse water installations, point ore deposit device.
10. process according to claim 9, it is characterised in that the centrifugal reel is horizontal type structure.
11. according to any one of claim 1-10 process, it is characterised in that the flotation still further comprises following step
Suddenly：
(4) product after step (3) is scanned carries out tin-lead soldering roughing by medicament composition；
(5) product after tin-lead soldering roughing carries out to tin-lead soldering is selected and tin-lead soldering is scanned respectively.
12. process according to claim 11, it is characterised in that the overflow is selected from the overflow of gravity tailings, Huo Zhechong
Select the overflow of raw ore.
13. process according to claim 11, it is characterised in that first to gravity tailings ,+150 μm carry out throwing tail in advance,
Obtain the overflow of -150 μm of grades.
14. process according to claim 12, it is characterised in that the overflow is that gravity treatment raw ore or gravity tailings are carried out in advance
First size mixing the overflow obtained after grading technology.
15. process according to claim 11, it is characterised in that scanning in step (4) is scanned for desulfurization flotation.
16. process according to claim 11, it is characterised in that selected at least four times of the tin-lead soldering in step (5), tin
Stone flotation is scanned at least three times.
17. process according to claim 12, it is characterised in that flotation Tin concentrate is classification of being sized mixing in advance to gravity treatment raw ore
The flotation Tin concentrate of overflow.
18. process according to claim 14, it is characterised in that the processing step for sizing mixing classification in advance includes：It is right
The underflow of gravity treatment raw ore or gravity tailings carries out gravity treatment and the technique of flotation is carried out to overflow, and the classification of sizing mixing in advance includes will
Microfine rank sludge and the optional size fraction of shaking table, the microfine rank sludge enter flotation, the shaking table as overflow
Optional grade enters gravity treatment as underflow.
19. process according to claim 18, it is characterised in that the microfine rank is -38 μm；The optional grade of shaking table
For+19 μm.
20. process according to claim 19, it is characterised in that the microfine rank is -19 μm；The optional grade of shaking table
For+38 μm.
21. process according to claim 1, it is characterised in that medicament composition in the floatation process by collecting agent,
Composite restrainer and supplementary catching agent composition.
22. process according to claim 21, it is characterised in that the collecting agent is selected from NFB-1.
23. according to the process of claim 1 or 21, it is characterised in that the composite restrainer is selected from NFY-1.
24. process according to claim 21, it is characterised in that the supplementary catching agent is WP.
25. process according to claim 1, it is characterised in that the medicament composition is pressed down by collecting agent NFB-1 and combination
Preparation NFY-1 is formed.
26. according to the process of claim 21 or 24, it is characterised in that the medicament composition by collecting agent NFB series,
Composite restrainer NFY series and supplementary catching agent WP compositions.
27. process according to claim 26, it is characterised in that the medicament composition is pressed down by collecting agent NFB-1, combination
Preparation NFY-1 and supplementary catching agent WP compositions.
28. according to the process of claim 1 or 21, it is characterised in that in the medicament composition, the dosage of collecting agent is
100-1100g/t, the dosage of composite restrainer are 15-600g/t, 20-300g/t, 30-200g/t, and dosage is to treat the tin of flotation
On the basis of stone ore weight.
29. process according to claim 22, it is characterised in that in the medicament composition, the dosage of collecting agent is
100-1100g/t, the dosage of composite restrainer are 15-600g/t, 20-300g/t, 30-200g/t, the dosage of supplementary catching agent
For 10-100g/t, dosage is on the basis of the cassiterite ore deposit weight for treating flotation.
30. according to the process of claim 1 or 21, it is characterised in that in the medicament composition, the dosage of collecting agent is
150-820g/t, the dosage of composite restrainer is 40-150g/t, and dosage is on the basis of the cassiterite ore deposit weight for treating flotation.
31. process according to claim 22, it is characterised in that in the medicament composition, the dosage of collecting agent is
150-820g/t, the dosage of composite restrainer are 40-150g/t, and the dosage of supplementary catching agent is 20-80g/t, and dosage is to wait to float
On the basis of the cassiterite ore deposit weight of choosing.
32. according to the process of claim 1 or 21, it is characterised in that in the medicament composition, the dosage of collecting agent is
200-600g/t, the dosage of composite restrainer is 60-100g/t, and dosage is on the basis of the cassiterite ore deposit weight for treating flotation.
33. process according to claim 22, it is characterised in that in the medicament composition, the dosage of collecting agent is
200-600g/t, the dosage of composite restrainer are 60-100g/t, and the dosage of supplementary catching agent is 30-60g/t, and dosage is to wait to float
On the basis of the cassiterite ore deposit weight of choosing.
34. process according to claim 1, it is characterised in that it is selected for the first time floating that the medicament composition is used for cassiterite
Choose, wherein the dosage 100-200g/t of collecting agent, the dosage of composite restrainer is 15-50g/t, and dosage is to want the cassiterite of flotation
On the basis of ore deposit weight.
35. process according to claim 1, it is characterised in that it is selected for the first time floating that the medicament composition is used for cassiterite
Choose, wherein the dosage 100-150g/t of collecting agent；The dosage of composite restrainer is 20-30g/t, and dosage is to want the cassiterite of flotation
On the basis of ore deposit weight.
36. according to the process of claim 1 or 21, it is characterised in that during the medicament composition is scanned for cassiterite, its
The dosage of middle collecting agent is 100-300g/t, and the dosage of composite restrainer is 15-60g/t, and dosage is to want the cassiterite ore deposit weight of flotation
On the basis of amount.
37. process according to claim 22, it is characterised in that during the medicament composition is scanned for cassiterite, wherein
The dosage of collecting agent is 100-300g/t, and the dosage of composite restrainer is 15-60g/t, and the dosage of supplementary catching agent is 20-80g/
T, dosage is on the basis of the cassiterite ore deposit weight for wanting flotation.
38. according to the process of claim 1 or 21, it is characterised in that the medicament composition be used for cassiterite for the first time and
Third time is scanned, the wherein dosage 100-200g/t of collecting agent；The dosage of composite restrainer is 20-40g/t, and dosage is to want flotation
Cassiterite ore deposit weight on the basis of.
39. process according to claim 22, it is characterised in that the medicament composition is used for cassiterite first time and the 3rd
It is secondary to scan, the wherein dosage 100-200g/t of collecting agent；The dosage of composite restrainer is 20-40g/t, the dosage of supplementary catching agent
For 30-50g/t, dosage is on the basis of the cassiterite ore deposit weight for wanting flotation.
40. according to the process of claim 1 or 21, it is characterised in that the dosage of the collecting agent is 1050g/t, described
The dosage of composite restrainer is 420g/t, and dosage is on the basis of the cassiterite ore deposit weight for wanting flotation.
41. process according to claim 22, it is characterised in that the dosage of the collecting agent is 1050g/t, the combination
The dosage of inhibitor is 420g/t, and the dosage of the supplementary catching agent is 40-50g/t, and dosage is to want the cassiterite ore deposit weight of flotation
On the basis of.
42. process according to claim 27, it is characterised in that the NFB-1 is 1050g/t, NFY-1 420g/t,
WP is 40g/t；For classification of sizing mixing in advance.
43. process according to claim 11, it is characterised in that in step (4), the medicament composition NFB-1 is
600g/t, WP 30g/t, NFY-1 200g/t.
44. process according to claim 11, it is characterised in that in step (5), the product after tin-lead soldering roughing is entered
Row is selected, and the floating agent during first time is selected is that NFB-1 is 150g/t and NFY-1 is 30g/t；Added when third time is selected
NFB-1 is 150g/t, and NFY-1 is 30g/t and WP is 10g/t.
45. process according to claim 11, it is characterised in that in step (5), the product after tin-lead soldering roughing is entered
Row is scanned, and the floating agent in scanning for the first time is that NFB-1 is 200g/t, and WP is 10g/t and NFY-1 is 150g/t；The 3rd
It is secondary to add that NFB-1 is 100g/t and NFY-1 is 40g/t when scanning.
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| CN107088468B (en) * | 2016-12-06 | 2018-10-09 | 西乌珠穆沁旗银漫矿业有限责任公司 | The beneficiation method of recycling silver, copper, sulphur and tin in a kind of tin silver symbiosis polymetallic ore |
| CN109759223A (en) * | 2019-01-02 | 2019-05-17 | 浙江天磨矿业科技有限公司 | A kind of milling method improving the lepidolite rate of recovery |
| CN111841876B (en) * | 2020-07-16 | 2022-08-30 | 湖南柿竹园有色金属有限责任公司 | Method for segmented recycling of copper-tin polymetallic ore beneficiation wastewater |
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| CN102489386A (en) * | 2011-12-13 | 2012-06-13 | 广州有色金属研究院 | Method for separating fine cassiterite |
| CN102631977A (en) * | 2012-05-05 | 2012-08-15 | 广州有色金属研究院 | Beneficiation method for ultrafine fraction cassiterite |
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| CN101797531B (en) * | 2010-03-23 | 2012-11-14 | 云南锡业集团（控股）有限责任公司 | Method for recovering valuable metal mineral in zinc tailing |
| CN101884951B (en) * | 2010-06-23 | 2012-11-28 | 广西华锡集团股份有限公司车河选矿厂 | Combined mineral dressing technology of fine grain and micro grain cassiterite |
| CN102172559A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation |
| CN102172560A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Method for recovering tin by centrifugal concentration |
| CN102688802A (en) * | 2012-06-11 | 2012-09-26 | 中国瑞林工程技术有限公司 | Size mixing and reselecting technology |
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| CN102489386A (en) * | 2011-12-13 | 2012-06-13 | 广州有色金属研究院 | Method for separating fine cassiterite |
| CN102631977A (en) * | 2012-05-05 | 2012-08-15 | 广州有色金属研究院 | Beneficiation method for ultrafine fraction cassiterite |
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