CN107282312B - A kind of copper-sulphide ores sorting process that disseminated grain size is fine - Google Patents
A kind of copper-sulphide ores sorting process that disseminated grain size is fine Download PDFInfo
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- CN107282312B CN107282312B CN201710469328.1A CN201710469328A CN107282312B CN 107282312 B CN107282312 B CN 107282312B CN 201710469328 A CN201710469328 A CN 201710469328A CN 107282312 B CN107282312 B CN 107282312B
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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
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of copper-sulphide ores sorting processes that disseminated grain size is fine, it is that collecting agent is added among rough grinding pass, medicament is set sufficiently to act on the fresh surface of mineral, medicament is improved in the functioning efficiency of mineral surfaces, the part copper mineral of monomer dissociation is obtained by fast-flotation, rough concentrate obtains high-grade copper concentrate 1 using the selected operation of revolving speed in low concentration twice, chats 1 and chats 2, rougher tailings scans operation by three sections and obtains chats 3, chats 1, chats 2 and chats 3 are combined into Ultrafine Grinding operation, Ultrafine Grinding product carries out regrinding selected I, regrind selected II operation, obtain copper concentrate 2.The fine copper-sulphide ores effect of method processing disseminated grain size of the invention is good, adaptable, and can obtain high-grade concentrate product.
Description
Technical field
The present invention relates to metallic ore technique of preparing, sort work more particularly to a kind of copper-sulphide ores that disseminated grain size is fine
Skill.
Background technique
With the exploitation and utilization of copper ore resource, copper ore resource gradually develops to poor thin miscellaneous direction, considerably increases choosing
The difficulty of mine sorting.Wherein, fine grain teeth cloth copper mine, the copper mine of especially thickness misproportion dissemination are a kind of copper difficult to deal with
Mine type.Some copper mineral disseminated grain sizes of the type copper mine are thicker, and some copper mineral disseminated grain sizes are fine, even less than 10 μ
m.Such copper mine is handled, the general Beneficiation flowsheet for using stage grinding, if the thicker part copper mineral of disseminated grain size is into regrinding
On the one hand operation wastes energy consumption, on the other hand there is a possibility that the copper mineral of monomer dissociation loses on stream.Traditional is thin
Grinding process, Granularity Distribution is wide, and fine fraction part is relatively more, is also easy to produce argillization phenomenon, influences subsequent flotation operation, drop
The grade and the rate of recovery of low concentrate product.In general, the limitation of traditional fine grinding technology is, flotation pulp is more containing mud, selected
Operation is easy to entrainment gangue and floats together, causes concentrate grade not high.In addition, traditional handicraft uses the closed circuit stream of middling recurrence
Journey, sludge are easy accumulation, lead to flotation environmental degradation.In order to reduce the silicone content of concentrate product, product iron silicon ratio is improved, is reduced
Subsequent smelting cost, the collecting agent for finding a kind of function admirable are most important.It can be seen that the development and utilization of new process are to this
Class difficulty selects sorting for copper-sulphide ores particularly important.
Summary of the invention
It is good the purpose of the present invention is seeking a kind of copper-sulphide ores effect that processing disseminated grain size is fine for disadvantages mentioned above,
It is adaptable, and can obtain high-grade concentrate product sorts new method.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of copper-sulphide ores sorting process that disseminated grain size is fine, comprising the following steps:
1) based on raw ore dry weight per ton, the fine copper-sulphide ores of disseminated grain size ore grinding: are added rod mill ore grinding 5-10 points
Zhong Hou adds hybrid collector SIBX (isobutyl group potassium xanthate) 100~150g/t of dosage into rod mill, continues ore grinding 3-8
Minute, ore grinding to grinding fineness is that -0.053mm at least accounts for 80%；
2) roughing: corase grinding product adds 55~70g/t of alcohols frother dosages, and it is single first to carry out 1 minute flash flotation
The copper mineral of body dissociation, in slot ore pulp continue to add 15~20g/t of hybrid collector SIBX dosage and alcohols frother dosages 8~
12g/t, carries out roughing operation in 3~5 minutes, and two-stage flotation product merges into copper rougher concentration；
3) selected: rough concentrate carries out two sections of selected operations, two sections of selected addition 8~12g/ of hybrid collector SIBX dosage
T obtains copper concentrate 1, chats 1 and chats 2, wherein two sections of selected pulp densities are respectively 8%~12%, revolving speed difference
For 1500~2000r/min；
4) scan: copper rougher tailings carries out three sections and scans operation, and hybrid collector SIBX dosage 8 is added in every section of operation respectively
~15g/t and alcohols 8~12g/t of frother dosages obtains chats 3 and tailing 1；
5) regrind: chats 1, chats 2 and chats 3 merge, and into Ultrafine Grinding operation, ultra-fine abrading-ball medium is 2.0mm ball Jie
Matter zircon ball, grinding fineness are that -0.010mm accounts at least 80%；
6) regrind selected I: Ultrafine Grinding product addition 40~55g/t of hybrid collector SIBX dosage regrind it is selected, then
Selected I pulp density 7%~10% is ground, selected I concentrate and tailings 2 are regrinded in acquisition；
7) regrind selected II: regrind selected I concentrate addition 15~20g/t of hybrid collector SIBX dosage regrind it is selected
II, it regrinds selected II operation and uses pulp density for 4%~6%, revolving speed is the floatation process of 1500r/min~2000r/min,
Obtain copper concentrate 2 and tailing 3.
Optionally, copper-sulphide ores described in step 1) contain chalcopyrite, vitreous copper, raw ore containing Copper mass fraction be 2~
5%.
Optionally, 110~120g/t of the hybrid collector SIBX dosage is added in step 1).
Optionally, the addition alcohols frother dosages of corase grinding product described in step 2) are 60~65g/t, ore pulp in the slot
Continue to add hybrid collector SIBX dosage to be 17~18g/t.
Optionally, in step 3), the concentrate that the selected operation of first segment obtains enters the selected operation of second segment, and tailing is described
Chats 1；The concentrate that the selected operation of second segment obtains is the copper concentrate 1, and tailing is the chats 2.
Optionally, two sections of selected revolving speeds are respectively 1600~1800r/min.
Optionally, in step 4), each section of tailing for scanning operation sequentially enters next section and scans operation, and three sections are scanned operation
Concentrate merge to form the chats 3, third section scan operation tailing be the tailing 1.
Optionally, in step 6), the Ultrafine Grinding product addition 45~50g/t of hybrid collector SIBX dosage is regrinded
It is selected, regrind selected I pulp density 8%.
Optionally, described to regrind selected I concentrate addition, 17~18g/t of hybrid collector SIBX dosage progress in step 7)
Selected II is regrinded, selected II operation is regrinded and uses pulp density for 5%, revolving speed is the flotation work of 1600r/min~1800r/min
Skill.
Conventional alcohols foaming agent can be applied to the present invention, it is preferred that the foaming agent is raw for SENMIN (PTY) LTD
The foaming agent SF522 of production.
The above percentage is mass percent.
Compared to the prior art, the invention has the following advantages:
1, for the existing technology of regrinding cannot reach higher liberation degree of minerals and reasonable grain class distribution (grain class distribution compared with
It is wide), the present invention uses ultra-fine grinding process, matches reasonable zircon ball medium using ball, optimizes ultra-fine abrading-ball media stage and match, reduced
Mill and argillization phenomenon, reach higher liberation degree of minerals, improve the grain class distribution of ore milling product (grain class distribution is relatively narrow)；
2, it is difficult to obtain the copper concentrate product index of high-grade and high-recovery for existing subsieve flotation technique, this
Invention uses low concentration, middle revolving speed dressing process, solves the problems, such as argillization, improves concentrate grade, improves selected operation flotation environment,
Concentrate grade and the rate of recovery can be effectively improved；
3, using standard-sized sheet road process, no middling recurrence, flotation environment is good；
4, using the SIBX of selectivity and collecting function admirable, collecting agent is added among rough grinding pass, keeps medicament abundant
The fresh surface of mineral is acted on, medicament is improved in the functioning efficiency of mineral surfaces, can effectively reduce the silicone content in product, mention
High iron silicon ratio, is conducive to subsequent smelting.
Below in conjunction with drawings and examples, invention is further described in detail；But a kind of disseminated grain size of the invention is micro-
Thin copper-sulphide ores sorting process is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Fig. 1 is a kind of copper-sulphide ores selecting process figure that disseminated grain size is fine of the present invention.Specific method of the invention
It is embodied by Fig. 1 and its explanation.As shown in Figure 1, a kind of copper-sulphide ores sorting process that disseminated grain size is fine of the present invention, including with
Lower step:
1) after ore grinding 7 minutes, 110~120g/t of hybrid collector SIBX dosage ore grinding: is added into rod mill (by per ton
Raw ore dry weight meter, similarly hereinafter), continue ore grinding 5 minutes, ore grinding to grinding fineness is that -0.053mm accounts for 80%；
2) roughing: corase grinding product adds foaming agent SF522 60~65g/t of dosage, and it is single first to carry out 1 minute flash flotation
The copper mineral of body dissociation, ore pulp continues to add 17~18g/t of hybrid collector SIBX dosage and foaming agent SF522 dosage in slot
10g/t, carries out roughing operation in 4 minutes, and two-stage flotation product merges into copper rougher concentration；
3) selected: rough concentrate carries out two sections of low concentrations (10%), middle revolving speed (1700r/min) selected operation, and two sections selected
Hybrid collector SIBX dosage 10g/t is added, copper concentrate 1, chats 1 and chats 2 are obtained；
4) scan: copper rougher tailings carries out three sections and scans operation, and hybrid collector SIBX dosage is added in every section of operation respectively
10~11g/t and foaming agent SF522 dosage 10g/t obtains chats 3 and tailing 1；
5) regrind: chats 1, chats 2 and chats 3 merge, and into Ultrafine Grinding operation, optimize ultra-fine abrading-ball medium, are determined as
2.0mm ball medium zircon ball, grinding fineness are that -0.010mm accounts for 80%；
6) regrind selected I: Ultrafine Grinding product addition 45~50g/t of hybrid collector SIBX dosage regrind it is selected, then
Selected I pulp density 8% is ground, and its activity duration is appropriately extended, selected I concentrate and tailings 2 are regrinded in acquisition；
7) regrind selected II: regrind selected I concentrate addition 17~18g/t of hybrid collector SIBX dosage regrind it is selected
II, selected operation is regrinded using low concentration (5%) and middle revolving speed (1700r/min) floatation process, obtains copper concentrate 2 and tailing 3.
Embodiment 1
Copper mine category copper-sulphide ores used in embodiment 1, main copper mineral are chalcopyrite, vitreous copper, raw ore cupric (wt%)
3.76%.Based on raw ore dry weight per ton, rod mill is added in the ratio of 1:1 in broken tcrude ore and water first and is ground
Collecting agent SIBX dosage 120g/t is added in mine, ore grinding midway, and the grinding fineness of rod mill discharge reaches -0.053mm, and (fineness is less than
Equal to 0.053mm) account for 80%.Foaming agent SF522 dosage 65g/t is added in ball mill discharge, is carried out flash flotation and is obtained flash
Flotation concentrate and flash tails report；Flash tails report successively adds collecting agent SIBX dosage 18g/t and foaming agent SF522 use
It measures 10g/t and carries out copper roughing, obtain copper rougher concentration and copper rougher tailings, flash flotation concentrate and copper rougher concentration merge, add
Add collecting agent SIBX dosage 10g/t to carry out selected I, obtain selected I concentrate and chats 1, selected I concentrate addition collecting agent SIBX is used
It measures 10g/t and carries out selected II, obtain copper concentrate 1 and chats 2；Copper rougher tailings carries out three sections and scans operation, every section of operation difference
Collecting agent SIBX dosage 10g/t and foaming agent SF522 dosage 10g/t is added, chats 3 and tailing 1 are obtained；Chats 1,2 and of chats
Chats 3 is combined into Ultrafine Grinding operation, and grinding fineness reaches -0.010mm (fineness is less than or equal to 0.010mm) and accounts for 80%, ultra-fine
Mill discharge addition collecting agent SIBX dosage 45g/t carries out regrinding selected I, and selected I concentrate and tailings 2 are regrinded in acquisition, regrind selected I
Concentrate addition hybrid collector SIBX dosage 17g/t carries out regrinding selected II, obtains copper concentrate 2 and tailing 3.
Embodiment 2
Copper mine category copper-sulphide ores used in embodiment 2, main copper mineral are chalcopyrite, vitreous copper, raw ore cupric (wt%)
3.75%.Based on raw ore dry weight per ton, rod mill is added in the ratio of 1:1 in broken tcrude ore and water first and is ground
Collecting agent SIBX dosage 110g/t is added in mine, ore grinding midway, and the grinding fineness of rod mill discharge reaches -0.053mm and accounts for 80%.Ball
Foaming agent SF522 dosage 60g/t is added in mill discharge, is carried out flash flotation and is obtained flash flotation concentrate and flash flotation tail
Mine；Flash tails report successively adds collecting agent SIBX dosage 17g/t and foaming agent SF522 dosage 10g/t and carries out copper roughing, obtains
Copper rougher concentration and copper rougher tailings are obtained, flash flotation concentrate and copper rougher concentration merge, and add collecting agent SIBX dosage 10g/t
Selected I is carried out, selected I concentrate and chats 1 are obtained, selected I concentrate addition collecting agent SIBX dosage 10g/t carries out selected II, obtains
Obtain copper concentrate 1 and chats 2；Copper rougher tailings carries out three sections and scans operation, and collecting agent SIBX dosage is added in every section of operation respectively
11g/t and foaming agent SF522 dosage 10g/t obtains chats 3 and tailing 1；Chats 1, chats 2 and chats 3 are combined into Ultrafine Grinding
Operation, grinding fineness reach -0.010mm and account for 80%, and Ultrafine Grinding discharge addition collecting agent SIBX dosage 50g/t regrind selected
I, selected I concentrate and tailings 2 are regrinded in acquisition, regrind selected I concentrate addition collecting agent SIBX dosage 18g/t regrind it is selected
II, obtain copper concentrate 2 and tailing 3.
Embodiment 3
Copper mine category copper-sulphide ores used in embodiment 3, main copper mineral are vitreous copper, raw ore cupric (wt%) 4.24%.
Based on raw ore dry weight per ton, rod mill is added in the ratio of 1:1 in broken tcrude ore and water first and carries out ore grinding, in ore grinding
Collecting agent SIBX dosage 110g/t is added in way, and the grinding fineness of rod mill discharge reaches -0.053mm and accounts for 80%.Ball mill discharge
Middle addition foaming agent SF522 dosage 60g/t carries out flash flotation and obtains flash flotation concentrate and flash tails report；Flash is floating
It selects tailing successively to add collecting agent SIBX dosage 17g/t and foaming agent SF522 dosage 10g/t and carries out copper roughing, obtain copper roughing
Concentrate and copper rougher tailings, flash flotation concentrate and copper rougher concentration merge, and addition collecting agent SIBX dosage 10g/t carries out selected
I, selected I concentrate and chats 1 are obtained, selected I concentrate addition collecting agent SIBX dosage 10g/t carries out selected II, obtains copper concentrate 1
With chats 2；Copper rougher tailings carries out three sections and scans operation, and collecting agent SIBX dosage 11g/t and blistering are added in every section of operation respectively
Agent SF522 dosage 10g/t obtains chats 3 and tailing 1；Chats 1, chats 2 and chats 3 are combined into Ultrafine Grinding operation, and ore grinding is thin
Degree reaches -0.010mm and accounts for 80%, and Ultrafine Grinding discharge addition collecting agent SIBX dosage 50g/t carries out regrinding selected I, obtains
Selected I concentrate and tailings 2 are regrinded, selected I concentrate addition collecting agent SIBX dosage 18g/t is regrinded and carries out regrinding selected II, obtain
Copper concentrate 2 and tailing 3.
Each embodiment test result is shown in Table 1.
Each embodiment test result of table 1
Above-described embodiment is only used to further illustrate a kind of fine copper-sulphide ores sorting process of disseminated grain size of the invention,
It is to the above embodiments according to the technical essence of the invention any simply to repair but the invention is not limited to embodiment
Change, equivalent variations and modification, falls within the scope of protection of technical solution of the present invention.
Claims (9)
1. a kind of copper-sulphide ores sorting process that disseminated grain size is fine, it is characterised in that the following steps are included:
1) ore grinding: based on raw ore dry weight per ton, after the fine copper-sulphide ores of disseminated grain size are added rod mill ore grinding 5-10 minutes,
Into rod mill add collecting agent SIBX 100~150g/t of dosage, continue ore grinding 3-8 minute, ore grinding to grinding fineness for-
0.053mm at least accounts for 80%；
2) roughing: corase grinding product adds 55~70g/t of alcohols frother dosages, first carries out 1 minute flash flotation monomer solution
From copper mineral, ore pulp continues to add 15~20g/t of collecting agent SIBX dosage and alcohols 8~12g/t of frother dosages in slot, into
Roughing operation in row 3~5 minutes, two-stage flotation product merge into copper rougher concentration；
3) selected: rough concentrate carries out two sections of selected operations, and two sections of selected addition collecting agent SIBX 8~12g/t of dosage obtain copper
Concentrate 1, chats 1 and chats 2, wherein two sections of selected pulp densities are respectively 8%~12%, revolving speed is respectively 1500~
2000r/min；
4) scan: copper rougher tailings carries out three sections and scans operation, and 8~15g/t of collecting agent SIBX dosage is added in every section of operation respectively
With alcohols 8~12g/t of frother dosages, chats 3 and tailing 1 are obtained；
5) regrind: chats 1, chats 2 and chats 3 merge, and into Ultrafine Grinding operation, ultra-fine abrading-ball medium is 2.0mm ball medium zirconium
Stone ball, grinding fineness are that -0.010mm accounts at least 80%；
6) regrind selected I: Ultrafine Grinding product addition 40~55g/t of collecting agent SIBX dosage regrind selected, regrinds selected I mine
Concentration 7%~10% is starched, selected I concentrate and tailings 2 are regrinded in acquisition；
7) it regrinds selected II: regrinding selected I concentrate addition, 15~20g/t of collecting agent SIBX dosage and carry out regrinding selected II, regrind
Selected II operation uses pulp density for 4%~6%, and revolving speed is the floatation process of 1500r/min~2000r/min, obtains copper
Concentrate 2 and tailing 3.
2. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: institute in step 1)
It states copper-sulphide ores and contains chalcopyrite and/or vitreous copper, raw ore is 2~5% containing Copper mass fraction.
3. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: add in step 1)
Add 110~120g/t of the collecting agent SIBX dosage.
4. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: institute in step 2)
Stating corase grinding product addition alcohols frother dosages is 60~65g/t, in the slot ore pulp continue to add collecting agent SIBX dosage be
17~18g/t.
5. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: in step 3),
The concentrate that the selected operation of first segment obtains enters the selected operation of second segment, and tailing is the chats 1；The selected operation of second segment obtains
Concentrate be the copper concentrate 1, tailing be the chats 2.
6. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 5, it is characterised in that: two sections of essences
The revolving speed of choosing is respectively 1600~1800r/min.
7. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: in step 4),
Each section of tailing for scanning operation sequentially enters next section and scans operation, and three sections of concentrate for scanning operation merge to form the chats 3,
The tailing that third section scans operation is the tailing 1.
8. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 1, it is characterised in that: in step 6),
Ultrafine Grinding product addition 45~50g/t of collecting agent SIBX dosage regrind selected, regrinds selected I pulp density 8%.
9. the fine copper-sulphide ores sorting process of disseminated grain size according to claim 8, it is characterised in that: in step 7),
The selected I concentrate addition 17~18g/t of collecting agent SIBX dosage that regrinds carries out regrinding selected II, regrinds selected II operation and uses
Pulp density is 5%, and revolving speed is the floatation process of 1600r/min~1800r/min.
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| CN112808464B (en) * | 2020-12-17 | 2022-07-12 | 金隆铜业有限公司 | Method for reducing copper content of slag copper-dressing tailings |
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| "硫化铜矿石浮选技术发展概述";张波;《铜业工程》;20120228(第2期);第31-37页 |
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| CN107282312A (en) | 2017-10-24 |
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