CN107890946B - A kind of beneficiation method of micro fine particle - Google Patents
A kind of beneficiation method of micro fine particle Download PDFInfo
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- CN107890946B CN107890946B CN201710907406.1A CN201710907406A CN107890946B CN 107890946 B CN107890946 B CN 107890946B CN 201710907406 A CN201710907406 A CN 201710907406A CN 107890946 B CN107890946 B CN 107890946B
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
- B03D1/00—Flotation
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Abstract
The invention discloses a kind of beneficiation methods of micro fine particle, first by crushing raw ore, after ore grinding, carry out desulfurization flotation, Flotation of Sulfide Ores tailing is subjected to iron removal by magnetic separation, then magnetic tailing is subjected to spiral chute gravity treatment, table concentration is carried out after again mixing spiral chute rough concentrate and spiral chute chats, obtain shaking table rough concentrate, shaking table chats and shaking table tailing, shaking table tailing directly throws tail, progress once desulfurization roughing once desulfurization is scanned after adding water to size mixing spiral chute tailing and desulfurization blank is selected twice, obtain iron concentrate and desulfurization tailing, a cassiterite roughing is carried out after adding water to size mixing to desulfurization tailing, cassiterite is scanned and cassiterite is selected twice, obtain cassiterite concentrate, the present invention is using weight, magnetic, the floating process integration combined, the efficiency of separation is high, it is at low cost, the cassiterite rate of recovery is high, suitable for sulfur-bearing and containing mud it is higher The recycling of micro fine particle.
Description
Technical field
The present invention relates to a kind of beneficiation method of micro fine particle, in particular to a kind of higher microfine of sulfur-bearing clay content
Cassiterite belongs to technical field of beneficiation.
Background technique
Tin ore is crisp frangible, in exploitation and transit link, or broken ore grinding link, pole is had to pass through in ore dressing process
After easy argillization or cross crushes, or cassiterite sorts as oxide ore and acts on sulphide ore in ore-dressing of polymetallic ore, it can not keep away
Generate the fine fraction tin ore of a large amount of granularity < 0.043mm with exempting from.This part micro fine particle grade < 1%, there is larger exploitation value
Value, but due to micro fine particle particularity, cause the recycling of this part cassiterite very difficult.
With the continuous exploitation of Tin Resources, Tin Resources are constantly reduced, and the Beneficiation Feed Grade of tin ore gradually decreases, and are exploited low
The thin tin ore of grade disseminated grain size has been trend of the times, and another aspect technique of preparing is constantly progressive, tinnery early stage ore dressing tail
Fine fraction part cassiterite is considered as the ore dressing raw material that resource secondary utilizes in mine.
Larger with the density variation of gangue mineral since cassiterite is than great, tin ore beneficiation method is mainly based on gravity treatment.Weight
Choosing is since its processing cost is low, non-environmental-pollution, concentration ratio are high, can get more high-grade Tin concentrate.It is applied in gravitational separation equipment
It is most widely shaking table, the sorting for carrying out cassiterite is often used in combination with gravitational separation equipments such as jigging machine and spiral chutes.But again
Optional equipment occupied area is larger, and the rate of recovery is lower, and the usual rate of recovery is 45% or so.
Summary of the invention
The purpose of the present invention is to provide a kind of beneficiation methods of micro fine particle, and the method for the present invention is to micro fine particle
Tin recycling has preferable effect.
Since sulfur-bearing is higher larger to the flotation difficulty of micro fine particle containing mud, the rate of recovery and grade of Tin concentrate are lower,
And cost recovery is high, and present invention process process is that flotation removing sulphide ore, iron removal by magnetic separation, spiral chute first selects part tin
Stone, in conjunction with table concentration recovery section cassiterite, then again with flotation recovery major part tin after floatation desulphurization, using this technique
Tin concentrate can be effectively recycled, preferable tin index is obtained, micro fine particle recycling of the method for the present invention for sulfur-bearing containing mud provides
One effective way.
Technical scheme is as follows: first by after crushing raw ore, ore grinding, carrying out desulfurization flotation, obtains flotation vulcanization
Flotation of Sulfide Ores tailing is carried out magnetic separation, obtains magnetic concentrate and magnetic tailing by mine concentrate and Flotation of Sulfide Ores tailing, then will
Magnetic tailing carries out spiral chute gravity treatment, obtains that spiral shell slips rough concentrate, spiral shell slips chats and Luo Liuweikuang, then spiral shell is slipped rough concentrate and spiral shell
Table concentration is carried out after slipping chats mixing, obtains shaking table tin rough concentrate, shaking table medium tin ore and shaking table tailing, shaking table tailing is directly thrown
Tail, progress once desulfurization roughing once desulfurization is scanned after Luo Liuweikuang plus water are sized mixing and desulfurization blank is selected twice, obtains sulphur
Concentrate and desulfurization tailing carry out a cassiterite roughing after adding water to size mixing to desulfurization tailing, a cassiterite is scanned and cassiterite is smart twice
Choosing, obtains Tin concentrate.
The beneficiation method of micro fine particle of the present invention, concrete operations are as follows:
(1) crushing raw ore, ore grinding to granularity in mass are less than 0.074mm and account for 75 ~ 90%, then plus water is sized mixing to mine
Starching concentration is 30 ~ 42%, based on raw ore per ton, sequentially adds 1000 ~ 2500g/t sulfuric acid, 20 ~ 50g/t collecting agent and 30 ~ 100g/
No. 2 oil of t foaming agent carry out sulfide flotation, obtain sulphide concentrate and sulfide ore tailings, and wherein collecting agent is fourth Huang, isoamyl
Base xanthate or DF-336；
(2) sulfide ore tailings of step (1) are subjected to magnetic separation, obtain iron ore concentrate and magnetic tailing, wherein magnetic separation strength is
0.1~0.3T；
(3) magnetic tailing of step (2) is subjected to spiral chute gravity treatment, obtains that spiral shell slips rough concentrate, spiral shell slips chats and spiral shell slips
Then spiral shell is slipped rough concentrate and spiral shell slips after chats mixes and carries out table concentration by tailing, obtain shaking table Tin concentrate, shaking table medium tin ore and
Shaking table tailing, shaking table tailing directly throw tail；
(4) add water to size mixing to pulp density the Luo Liuweikuang of step (3) to be 26 ~ 32%, then press Luo Liuweikuang per ton
Meter, sequentially adds 40 ~ 100g/t petroleum sodium sulfonate, and No. 2 oil of 30 ~ 60g/t foaming agent carry out desulfurization roughing, obtain sulphur rough concentrate
With desulfurization tailing；
(5) by the sulphur rough concentrate progress of step (4), blank is selected twice, obtains iron concentrate；
(6) successively add 10 ~ 40g/t petroleum sodium sulfonate, No. 2 oil of 10 ~ 30g/t foaming agent into the desulfurization tailing of step (4)
It carries out once desulfurization to scan, obtains desulfurization scavenger concentrate and tailing is scanned in desulfurization；
(7) tailing is scanned into the desulfurization of step (6) water is added to size mixing to pulp density be 20 ~ 30%, sequentially add 100 ~
The sodium carbonate of 300g/t, the collectors for cassiterite JSY-19 of the activator KT-51,1200 ~ 1600 g/t of 300 ~ 900g/t, 60 ~
No. 2 oil of foaming agent of the supplementary catching agent P86,30 ~ 50g/t of 100g/t, carry out a cassiterite roughing, obtain cassiterite rough concentrate and
Cassiterite rougher tailings；
(8) the collectors for cassiterite JSY-19 of 100 ~ 200g/t is sequentially added into the cassiterite rougher tailings of step (7), 10 ~
No. 2 oil of foaming agent of 30g/t, carry out a cassiterite and scan, obtain scavenger concentrate；
(9) the collecting agent JSY-19 of 40 ~ 80g/t is added into the cassiterite rough concentrate of step (7), carries out a cassiterite essence
Choosing, obtains cassiterite primary cleaning concentrate, and it is selected that cassiterite primary cleaning concentrate is carried out primary blank again, obtains Tin concentrate.
The roughing time of the present invention is 4 ~ 6min, and the selected time is 3 ~ 5min, and scanning the time is 2 ~ 4min.
Medicament DF-336 and P86 of the present invention is produced by Qingdao Ao Tong international corporation and is sold.
Medicament KT-51 of the present invention is produced by Yunnan Yuan Kuang Science and Technology Development Co., Ltd. and is sold.
Medicament JSY-19 of the present invention is researched and developed by Guangzhou Research Institute of Nonferrous Metals and is sold.
According to mine property is given, flotation removing sulphide ore, iron removal by magnetic separation, spiral chute select part cassiterite, to reduce
Sulphide ore and ferromagnetic mineral interfere subsequent flotation, while spiral chute selects part cassiterite and mitigates subsequent flotation pressure, takes off
Sulphur flotation removes sulphide ore and shale mineral using petroleum sodium sulfonate, reduces the influence of subsequent tin-lead soldering, reduces beneficiation cost,
Tin-lead soldering uses cassiterite activator KT-51, effectively raises the recovering effect of cassiterite, and can get tin grade is 5 ~ 15%, returns
Yield is greater than 70% flotation Tin concentrate.
Advantages of the present invention and technical effect:
1, the present invention in secondary desulfuration with petroleum sodium sulfonate desulfurization, compared with conventional desulfurization technique, while desulfurization
Part shale mineral can be removed, to reduce the interference to subsequent flotation.
2, the present invention selects part cassiterite, in conjunction with shaking table weight using flotation removing sulphide ore, iron removal by magnetic separation, spiral chute
The beneficiation combined method method of choosing, flotation, can effectively recycle Tin concentrate, it is higher to obtain tin index.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below by drawings and examples, invention is further described in detail, but the scope of the present invention is not limited to
The content.
Embodiment 1: the cassiterite beneficiation method of Yunnan somewhere cassiterite metal sulfide, concrete operations are as follows:
Raw ore tin grade is 0.264%, and crushing raw ore, ore grinding to granularity in mass are less than 0.074mm and account for 75%, is taken
500g raw ore, adding water tune pulp density is 30%, then sequentially adds activator sulfuric acid 1000g/t, 20g/t fourth Huang, foaming agent two
Number oil 30g/t carries out removing sulphide ore operation, obtains sulphide concentrate and sulfide ore tailings that operation recovery is 89.32%；
Sulfide ore tailings are subjected to magnetic separation, magnetic field strength 0.1T obtains the iron ore concentrate and remove iron tailings that grade is 55%；Iron tailings will be removed
Spiral chute gravity treatment is carried out, obtains that spiral shell slips rough concentrate, spiral shell slips chats and Luo Liuweikuang, spiral shell is slipped into rough concentrate, spiral shell slips chats mixing
Table concentration is carried out afterwards selects tin, obtaining grade is 45%, and the shaking table tin rough concentrate that the rate of recovery is 42%, shaking table tailing directly throws tail,
It is 26% that Luo Liuweikuang plus water, which are adjusted to pulp density, then sequentially adds 40g/t petroleum sodium sulfonate, 30g/t foaming agent 2
Oil carries out once desulfurization roughing, obtains sulphur rough concentrate and desulfurization tailing, and by the progress of sulphur rough concentrate, blank is selected twice, obtains sulphur
Concentrate, 10g/t petroleum sodium sulfonate is successively added into desulfurization tailing, and No. 2 oil of 10g/t foaming agent carry out once desulfurizations and scan, obtain
Tailing is scanned in desulfurization scavenger concentrate and desulfurization, by desulfurization scan tailing add water size mixing to pulp density be 20%, sequentially add
The sodium carbonate of 100g/t, the auxiliary collecting of the collectors for cassiterite JSY-19,60g/t of the activator KT-51,1200 g/t of 300g/t
No. 2 oil of foaming agent of agent P86,30g/t, carry out a cassiterite roughing, obtain cassiterite rougher concentration and cassiterite rougher tailings, to tin
No. 2 oil of foaming agent that the collectors for cassiterite JSY-19,10g/t of 100g/t is sequentially added in stone rougher tailings, carry out a cassiterite
It scans, obtains cassiterite scavenger concentrate and cassiterite scans tailing, the collecting agent JSY-19 of 40g/t is added in Xiang Xishi rougher concentration,
It is selected to carry out a cassiterite, obtains cassiterite primary cleaning concentrate and cassiterite primary cleaner tailing, again by cassiterite primary cleaning concentrate
It is selected to carry out primary blank, obtaining grade is 5.5%, and the Tin concentrate that the rate of recovery is 72%, the roughing time of this technical process is
4min, selected time are 3min, and scanning the time is 2min.
The process flow chart of the present embodiment is as shown in Figure 1.
Embodiment 2: the cassiterite beneficiation method of Yunnan Xi Xuan factory, concrete operations are as follows:
The tin grade of the mine is 1.15%, and crushing raw ore, ore grinding to granularity in mass are less than 0.074mm and account for 85%, is added
Water tune pulp density is 35%, then sequentially adds activator sulfuric acid 1500g/t, 40g/t isoamyl xanthate, No. two oil of foaming agent
50g/t carries out desulfuration operations, obtains sulphide concentrate and sulfide ore tailings that operation recovery is 92.32%；By sulphide ore tail
Mine carries out iron removal by magnetic separation, and magnetic field strength 0.2T obtains the iron ore concentrate and remove iron tailings that grade is 60.65%；Will except iron tailings into
Row spiral chute gravity treatment, obtains that spiral shell slips rough concentrate, spiral shell slips chats and Luo Liuweikuang, spiral shell is slipped rough concentrate, after spiral shell slips chats mixing
It carries out table concentration and selects tin, obtaining grade is 48%, and the shaking table tin rough concentrate that the rate of recovery is 50%, shaking table tailing directly throws tail, will
It is 30% that Luo Liuweikuang, which adds water to be adjusted to pulp density, then sequentially adds 60g/t petroleum sodium sulfonate, No. 2 oil of 50g/t foaming agent,
Once desulfurization roughing is carried out, sulphur rough concentrate and desulfurization tailing are obtained, blank is selected twice by the progress of sulphur rough concentrate, obtains sulphur essence
Mine, 30g/t petroleum sodium sulfonate is successively added into desulfurization tailing, and No. 2 oil of 20g/t foaming agent carry out once desulfurizations and scan, taken off
Tailing is scanned in sulphur scavenger concentrate and desulfurization, by desulfurization scan tailing add water size mixing to pulp density be 25%, sequentially add 200g/t
Sodium carbonate, the supplementary catching agent P86 of the collectors for cassiterite JSY-19,80g/t of the activator KT-51,1400g/t of 500g/t,
No. 2 oil of foaming agent of 40g/t, carry out a cassiterite roughing, obtain cassiterite rougher concentration and cassiterite rougher tailings, Xiang Xishi roughing
No. 2 oil of foaming agent that the collectors for cassiterite JSY-19,20g/t of 150g/t is sequentially added in tailing, carry out a cassiterite and scan, obtain
To cassiterite scavenger concentrate, the collecting agent JSY-19 of 60g/t is added in Xiang Xishi rougher concentration, it is selected to carry out a cassiterite, obtains
It is selected to be carried out primary blank by cassiterite primary cleaning concentrate again for cassiterite primary cleaning concentrate, and obtaining grade is 6.5%, and the rate of recovery is
The roughing time of 78.4% Tin concentrate, this technical process is 5min, and the selected time is 4min, and scanning the time is 3min.
Embodiment 3: the cassiterite beneficiation method of cloud tin cassiterite polymetallic sulphide ore, concrete operations are as follows:
Raw ore tin grade is 0.416%, and crushing raw ore, ore grinding to granularity in mass are less than 0.074mm and account for 90%, is added
Water tune pulp density is 42%, then sequentially adds activator sulfuric acid 2500g/t, 50g/t DF-336, No. two oil of foaming agent
100g/t carries out desulfuration operations, obtains sulphide concentrate and sulfide ore tailings that operation recovery is 94.3%；By sulphide ore tail
Mine carries out iron removal by magnetic separation, and magnetic field strength 0.3T obtains the iron ore concentrate and remove iron tailings that grade is 58.65%；Will except iron tailings into
Row spiral chute gravity treatment, obtains that spiral shell slips rough concentrate, spiral shell slips chats and Luo Liuweikuang, spiral shell is slipped rough concentrate, after spiral shell slips chats mixing
It carries out table concentration and selects tin, obtaining grade is 47.1%, and the shaking table tin rough concentrate that the rate of recovery is 44.53%, shaking table tailing is directly thrown
Tail, it is 32% that Luo Liuweikuang plus water, which are adjusted to pulp density, then sequentially adds 100g/t petroleum sodium sulfonate, 60g/t foaming agent
No. 2 oil carry out once desulfurization roughing, obtain sulphur rough concentrate and desulfurization tailing, and by the progress of sulphur rough concentrate, blank is selected twice, obtain
Iron concentrate, 40g/t petroleum sodium sulfonate is successively added into desulfurization tailing, and No. 2 oil of 30g/t foaming agent carry out once desulfurizations and scan, obtain
Scan tailing to desulfurization scavenger concentrate and desulfurization, by desulfurization scan tailing add water size mixing to pulp density be 30%, sequentially add
The auxiliary of the sodium carbonate of 300g/t, the collectors for cassiterite JSY-19,100g/t of the activator KT-51,1600 g/t of 900g/t is caught
Agent P86 is received, No. 2 oil of foaming agent of 50g/t carry out a cassiterite roughing, obtain cassiterite rougher concentration and cassiterite rougher tailings, to
No. 2 oil of foaming agent that the collectors for cassiterite JSY-19,30g/t of 200g/t is sequentially added in cassiterite rougher tailings, carry out a tin
Stone is scanned, and obtains cassiterite scavenger concentrate and cassiterite scans tailing, the collecting agent JSY- of 80g/t is added in Xiang Xishi rougher concentration
19, it is selected to carry out a cassiterite, cassiterite primary cleaning concentrate and cassiterite primary cleaner tailing is obtained, by cassiterite primary cleaning concentrate
It is selected that primary blank is carried out again, and obtaining grade is 8.40%, the Tin concentrate that the rate of recovery is 82.47%, when the roughing of this technical process
Between be 6min, the selected time be 5min, scan the time be 4min.
Claims (4)
1. a kind of beneficiation method of micro fine particle, it is characterised in that specifically includes the following steps:
(1) by crushing raw ore, ore grinding to granularity in mass be less than 0.074mm account for 75 ~ 90%, then plus water size mixing it is dense to ore pulp
Degree is 30 ~ 42%, based on raw ore per ton, sequentially adds 1000 ~ 2500g/t sulfuric acid, 20 ~ 50g/t collecting agent and 30 ~ 100g/t rise
No. 2 oil of infusion carry out sulfide flotation, obtain sulphide concentrate and sulfide ore tailings；
(2) sulfide ore tailings of step (1) are subjected to magnetic separation, obtain iron ore concentrate and magnetic tailing；
(3) magnetic tailing of step (2) is subjected to spiral chute gravity treatment, obtains that spiral shell slips rough concentrate, spiral shell slips chats and Luo Liuweikuang,
Then spiral shell is slipped into rough concentrate and spiral shell slips after chats mixes and carries out table concentration, obtain shaking table Tin concentrate, shaking table medium tin ore and shaking table
Tailing, shaking table tailing directly throw tail；
(4) adding water to size mixing to pulp density the Luo Liuweikuang of step (3) is 26 ~ 32%, then based on Luo Liuweikuang per ton, according to
Secondary addition 40 ~ 100g/t petroleum sodium sulfonate, No. 2 oil of 30 ~ 60g/t foaming agent carry out desulfurization roughing, obtain sulphur rough concentrate and desulfurization
Tailing；
(5) by the sulphur rough concentrate progress of step (4), blank is selected twice, obtains iron concentrate；
(6) successively add 10 ~ 40g/t petroleum sodium sulfonate into the desulfurization tailing of step (4), No. 2 oil of 10 ~ 30g/t foaming agent carry out
Once desulfurization is scanned, and obtains desulfurization scavenger concentrate and tailing is scanned in desulfurization；
(7) by the desulfurization of step (6) scan tailing add water size mixing to pulp density be 20 ~ 30%, sequentially add 100 ~ 300g/t's
Sodium carbonate, the collectors for cassiterite JSY-19's, 60 ~ 100g/t of the activator KT-51,1200 ~ 1600 g/t of 300 ~ 900g/t is auxiliary
Collecting agent P86 is helped, No. 2 oil of foaming agent of 30 ~ 50g/t carry out a cassiterite roughing, obtain cassiterite rough concentrate and cassiterite roughing tail
Mine；
(8) the collectors for cassiterite JSY-19,10 ~ 30g/t of 100 ~ 200g/t are sequentially added into the cassiterite rougher tailings of step (7)
No. 2 oil of foaming agent, carry out a cassiterite and scan, obtain scavenger concentrate；
(9) the collecting agent JSY-19 of 40 ~ 80g/t is added into the cassiterite rough concentrate of step (7), it is selected to carry out a cassiterite, obtains
To cassiterite primary cleaning concentrate, cassiterite primary cleaning concentrate is subjected to primary blank selected again, obtains Tin concentrate.
2. the beneficiation method of micro fine particle according to claim 1, it is characterised in that: the collecting agent of step (1) is fourth
Yellow, isoamyl xanthate or DF-336.
3. the beneficiation method of micro fine particle according to claim 1, it is characterised in that: the magnetic separation strength of step (2) is
0.1~0.3T。
4. the beneficiation method of micro fine particle according to claim 1, it is characterised in that: in step (1) ~ (9), slightly
Selecting the time is 4 ~ 6min, and the selected time is 3 ~ 5min, and scanning the time is 2 ~ 4min.
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| CN108940578B (en) * | 2018-05-15 | 2020-07-31 | 昆明理工大学 | Beneficiation method for recovering fine-grained cassiterite by adopting flotation machine-flotation column |
| CN110479499B (en) * | 2019-07-22 | 2021-09-28 | 广东省资源综合利用研究所 | Method for comprehensively recovering silver, tin and iron from quartz vein-band type tin tailings |
| CN112237985B (en) * | 2020-10-09 | 2021-08-24 | 昆明理工大学 | Method for recovering cassiterite from tin-containing sulfide ore |
| CN117548236B (en) * | 2024-01-11 | 2024-05-07 | 中国矿业大学(北京) | Method for reducing tin content in desulfurization flotation foam and application thereof |
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| CN102076419B (en) * | 2008-07-02 | 2014-04-09 | 佐治亚-太平洋化工品有限公司 | Collectors |
| CN101797534B (en) * | 2010-01-28 | 2013-08-14 | 广西大学 | Method for desulphurizing cassiterite polymetallic sulphide ore tailing by flotation step by step |
| CN101920222A (en) * | 2010-08-19 | 2010-12-22 | 云南锡业集团（控股）有限责任公司 | Improved method for cleaning tin rough concentrate |
| CN102489386B (en) * | 2011-12-13 | 2013-06-19 | 广州有色金属研究院 | Method for separating fine cassiterite |
| CN103495493B (en) * | 2013-10-14 | 2015-11-18 | 北京矿冶研究总院 | Beneficiation method for low-grade fine tin ore |
| CN104624389B (en) * | 2015-01-09 | 2017-09-15 | 临武县南方矿业有限责任公司 | A kind of gravity tailings tin-lead soldering method |
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Inventor after: Xie Xian Inventor after: Tong Xiong Inventor after: Peng Wei Inventor after: Song Qiang Inventor after: Zhang Zijiang Inventor after: Bai Fan Inventor before: Peng Wei Inventor before: Tong Xiong Inventor before: Xie Xian Inventor before: Song Qiang Inventor before: Zhang Zijiang Inventor before: Bai Fan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |