CN109158222A - A kind of echelon fast-flotation process of copper converter slag ore dressing - Google Patents
A kind of echelon fast-flotation process of copper converter slag ore dressing Download PDFInfo
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- CN109158222A CN109158222A CN201810985250.3A CN201810985250A CN109158222A CN 109158222 A CN109158222 A CN 109158222A CN 201810985250 A CN201810985250 A CN 201810985250A CN 109158222 A CN109158222 A CN 109158222A
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- copper
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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
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
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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
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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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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Abstract
The invention belongs to Copper making fields, more particularly to a kind of echelon fast-flotation process of copper converter slag ore dressing, pass through primary grinding, classification, one roughing including slow cooling, broken copper converter slag, obtain the thick tailing of copper concentrate product I and one, the one thick tailing carries out second of roughing after secondary grinding, classification, two rough concentrate of gained is divided into two parts, a part is used as II output of copper concentrate product, another part passes through selected output copper concentrate product III, and two thick tailings are by scanning to obtain true tailings.Compared with prior art, two rough concentrates are divided into two parts by the present invention, a part is used as concentrate elder generation output, another part carries out selected operation, significantly reduce the pressure of subsequent job, the working efficiency of flotation flowsheet is improved, be conducive to sorting index improves and reduces production cost, realizes the efficient process of copper converter slag.
Description
Technical field
The invention belongs to Copper making fields, and in particular to a kind of echelon fast-flotation process of copper converter slag ore dressing.
Background technique
The converter Copper in Slag grade that Copper making process generates is higher, generallys use beneficiation method and is recycled.Due to wherein
Copper object phase and its embedding cloth may inlay relationship complexity, cause the loss of copper in nominal group process still higher.
By process mineralogy study discovery vessel slag in copper mainly have copper sulfide, metallic copper, copper oxide and it is other other
Copper mineral.Metallic copper individualism, on a small quantity with copper-sulphide ores association in gangue mineral, granularity is thicker when individualism, with it
Granularity is thinner when his mineral association；The main preservation of vitreous copper is wrapped up in vitreum by gangue mineral, chalcopyrite mainly with spot copper
In mine association or embedding cloth and glass phase, bornite in clinker main embedding cloth in gangue mineral, mostly with chalcopyrite association.
And the metallic copper and copper sulfide mineral floatability in vessel slag are preferable, and mineral disseminated grain size is extremely uneven, lead to
It is handled frequently with stage grinding stage flotation process, i.e. after first segment is roughly ground, the copper mineral of part coarse grain reaches ore
Dissociation, so that emersion becomes qualified copper concentrate in first time flotation, for tailing after regrinding, part particulate copper mineral reaches solution
From by second of flotation and selected and scan and obtain concentrate and true tailings.The flotation flowsheet raw ore low for grade
It is also suitable, such as the recycling of clinker Minerals, but treatment effeciency is lower, and treated, and tailing cupric is still higher, causes certain
The wasting of resources.
Summary of the invention
The object of the present invention is to provide a kind of echelon fast-flotation processes of copper converter slag ore dressing.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of echelon of copper converter slag ore dressing is quickly floated
It selects process, including slow cooling, broken copper converter slag to pass through primary grinding, classification, one roughing, obtains copper concentrate product I
With a thick tailing, a thick tailing carries out second of roughing after secondary grinding, classification, and two rough concentrate of gained is divided into two
Part, a part are used as II output of copper concentrate product, and another part passes through selected output copper concentrate product III, and two thick tailings pass through
It scans to obtain true tailings.
Compared with prior art, in the flotation flowsheet that the present invention uses, the foam of second of roughing is separated into a part of work
For copper concentrate product output, the workload that subsequent fine is elected to be industry is greatly reduced, the flexibility of process is increased, reduced entire
The operating pressure of flotation flowsheet improves the treating capacity of unit time, improves the working efficiency of flotation flowsheet, is conducive to sort
Index improves and reduces production cost, realizes the efficient process of copper converter slag.
Preferably, the equipment of second of roughing includes concatenated at least three flotation cell.Described second
After roughing, taken in concatenated flotation cell in the first slot or in preceding two slot two rough concentrates of gained as II output of copper concentrate product,
Two rough concentrates in remaining flotation cell carry out selected operation.Part copper mineral is further single after carrying out second segment ore grinding to a thick tailing
Body dissociation, easily floating mineral are in the preferential emersion of former slots, therefore former slot foam grades are relatively high, can achieve concentrate product
It is required that avoid easily floating the loss that mineral constantly recycle and cause coarse particles in tailing separately as concentrate product, while
The burden of subsequent job is alleviated, operating efficiency is improved.
Specifically, when the copper converter cinder grade is lower than (4 ± 0.2) %, take two thick first slot concentrate as copper concentrate
II output of product；When the copper converter cinder grade is higher than (4 ± 0.2) %, take preceding two slots, two rough concentrate as copper concentrate product
II output.Copper converter slag is by the by-product of copper smelting by pyrometallurgy output, is not uniform due to being affected by smelting process
The structure of embedding cloth, and the converter cinder grade of output is not fixed value yet every time, therefore grade here is with (4 ± 0.2) %
Boundary, when grade is lower, only takes the first slot foam output, then when grade is higher to go a slot foam output more.This method can be with
The amount that output copper concentrate is flexibly controlled according to the property of vessel slag, grade etc., effectively improves the working efficiency of flotation flowsheet.
Preferably, the primary grinding fineness is that -200 mesh account for 65~70%；The secondary grinding fineness is -325
Mesh accounts for 85~90%.Ore grinding is indispensable operation before ore dressing, and it is big that it can prepare useful mineral disaggregation degree for sorting operation
Selected material, and the control of ore milling product fineness is even more important.In contrast, grinding fineness is thinner, valuable mineral and gangue
The dissociation of mineral is more abundant, advantageous to the rate of recovery for improving metal, so mentioning as much as possible under conditions of milling capacity is certain
High grinding fineness；And under the premise of can guarantee mineral processing index, to guarantee thicker grinding fineness as far as possible, mill can be reduced in this way
Mine energy consumption improves productivity.Grinding fineness is the fineness of ore milling product, usually with less than 200 mesh, (- 200 mesh, that is, be less than
0.074mm) mass fraction (%) that ore particle accounts for total ore milling product indicates.
Under normal conditions, in copper converter slag beneficiation flowsheet, -200 mesh of primary grinding fineness accounts for 65~70%, two sections of mills
Mine at most selects -325 mesh to account for 75~80% or 80~85%, does not exceed 85%, because mineral grain is smaller, is more easy to appear
Mineral argillization phenomenon increases the pulp viscosity in floatation process, and the floating of valuable mineral is obstructed, and the rate of recovery is seriously affected.But
Multiple roughing is carried out in the present invention program, mineral grain there are more chances to be separated, therefore selects secondary grinding fineness-
325 mesh 85~90%, improve the degree of dissociation of valuable mineral, accelerate the progress of beneficiation flowsheet.Wherein, the primary grinding
Grading plant is all had with secondary grinding, the slag for not meeting fineness requirement is returned into this section of grinding attachment and is regrinded.
Preferably, it before described one thick tailing enters secondary grinding, is first classified, granularity reaches the portion of secondary grinding standard
Divide and is directly entered second of roughing.One thick tailing has gone through primary grinding, is first classified before entering secondary grinding, can be to prevent
Only material crosses crushing, and reduces the material handling capacity of secondary grinding, reduces equipment attrition, accelerates process flow.
Preferably, described selected and scan, for the first time selected gained tailing and gained concentrate is scanned every time return to second
Section grind grading step cycle processing；It is highly preferred that described selected and scan and carry out respectively three times；Further preferably, second and third
Secondary selected gained concentrate returns to upper level circular treatment respectively；Selected mineral be have passed through obtained by secondary roughing twice, even
Selected tailing, grade is still higher, and scanning gained concentrate is sorted to valuable mineral remaining in tailing, by examining
It looks into, the intergrowth of valuable mineral is in the majority in this part chats, and part can be made by returning to the processing of second segment grind grading step cycle
Intergrowth mineral, then again by subsequent flotation operation, make the rate of recovery of valuable mineral by regrinding further monomer dissociation
It is further enhanced.
Preferably, it the roughing and scans xanthate and pine tar is added in treatment process.It is adjusted when flotation using various medicaments
The physicochemical characteristics of flotation material and flotation medium is saved, to expand the floatability difference of flotation storeroom, improves flotation efficiency,
Such as collecting agent, foaming agent, regulator.When sorting sulfide mineral, various organic thio compounds are commonly used as collecting agent, xanthate
Name alkyl xanthates or alkyl dithiocarbonate can be used as collecting agent use；Terpenic oil foaming characteristic is strong, and it is equal to generate size
Even, viscosity is medium and the suitable bubble of stability, can be used as foaming agent.Foaming agent and collecting agent have synergy, common to adsorb
In mineral particle surface, mineral is promoted to float.
Beneficial effect by adopting the above technical scheme is, in the flotation flowsheet of copper converter slag ore dressing, according to converter
The foam of second of roughing is separated a part as copper concentrate product output by cinder grade, is greatly reduced subsequent fine and is elected to be industry
Workload, and can flexibly be determined according to material properties situation the amount of separating number, increase the flexibility of process, reduce entire
The operating pressure of flotation flowsheet improves the treating capacity of unit time；And selected and middling recurrence second segment ore grinding that is scanning
Hierarchy system and circular treatment reduce gained true tailings grade, improve the rate of recovery of copper, reduce dirt of the tailing to environment
Dye, more fully recycles useful mineralogical composition, obtains better benefit on both side from economy and environment, accomplish
Mine resources utilize and the coordinated development of environmental protection.
Detailed description of the invention
Fig. 1 is echelon fast-flotation flow chart of the invention
Specific embodiment
The solution of the present invention is described in further detail below according to attached drawing.
Embodiment 1:
Equipment: the floatation equipment of second of roughing at least has there are three concatenated flotation cell.
Process flow and parameter: after the copper converter slag slow cooling of copper grade 5.12%, being crushed, by primary grinding, carefully
- 200 mesh 65~70% are spent, ore milling product carries out one roughing after classification, obtain the thick tailing of copper concentrate product I and one, described one
Thick tailing is first classified according to the fineness requirement of secondary grinding, and fineness is satisfactory without secondary grinding, and fineness, which is not met, to be wanted
The slag asked carries out secondary grinding, and wherein fineness requirement is -325 mesh 85~90%, and gained ore milling product carries out second after classification
Secondary roughing, the oneth the second slot foam of gained carry out triple cleaning output as II output of copper concentrate product, the foam of remaining slot
Copper concentrate III, two thick tailings are scanned to obtain true tailings three times.Wherein, first time selected gained tailing scans institute with each
It obtains concentrate and returns to the classification circuit cycle processing after secondary grinding；It the roughing and scans collecting agent Huang is added in the process
Medicine and foaming agent terpenic oil, additional amount are xanthate 220g/t, terpenic oil 60g/t.
Statistics, detection and calculating: resulting copper concentrate product I, II, III is collected and is mixed by system throughput 125t/h
Detection Cu Concentrate Grade is 20.51% after even, gained true tailings grade 0.19%, and calculating copper recovery is 97.19%.By phase
It closes data and charges to table 1.
Embodiment 2:
Change copper converter slag head grade in embodiment 1.Remaining step and technological parameter are same as Example 1, by phase
It closes data and charges to table 1.
Embodiment 3:
Using the first slot foam after second of roughing in embodiment 2 as II output of copper concentrate product, rear a few slot foams are carried out
Selected operation.Remaining step and technological parameter are same as Example 2, and related data is charged to table 1.
Embodiment 4:
Copper converter slag head grade in embodiment 3 is reduced, selected and scan number and be changed to twice, remaining step
It is same as Example 3 with technological parameter, related data is charged into table 1.
Comparative example 1:
Process flow and parameter: after the copper converter slag slow cooling of copper grade 4.40%, being crushed, by primary grinding, carefully
- 200 mesh 65~70% are spent, ore milling product carries out one roughing, obtains the thick tailing of copper concentrate product I and one, a thick tailing
Secondary grinding, -325 mesh 85~90% of fineness are carried out, gained ore milling product carries out second of roughing, and two obtained rough concentrates carry out
Triple cleaning, two thick tailings are scanned three times, wherein the selected gained concentrate of third time is copper concentrate product II, are scanned for the third time
Gained tailing is true tailings, and selected gained tailing and each gained concentrate of scanning return at second of roughing circulation for the first time
Reason；Wherein, it roughing and scans collecting agent xanthate and foaming agent terpenic oil is added, additional amount is xanthate 220g/t, terpenic oil
60g/t。
Statistics, detection and calculating: system throughput 108t/h, after resulting copper concentrate product I, II is collected and is mixed
Detecting Cu Concentrate Grade is 20.93%, gained true tailings grade 0.27%, and calculating copper recovery is 95.09%.By dependency number
According to charging to table 1.
Comparative example 2:
Change copper converter slag head grade in comparative example 1, remaining step and technological parameter are identical as comparative example 1, by phase
It closes data and charges to table 1.
Relevant parameter in each embodiment and comparative example of table 1
Claims (10)
1. a kind of echelon fast-flotation process of copper converter slag ore dressing, including slow cooling, broken copper converter slag pass through one
Section ore grinding, classification, one roughing, obtain the thick tailing of copper concentrate product I and one, it is characterised in that: a thick tailing passes through two
Second of roughing is carried out after section ore grinding, classification, two rough concentrate of gained is divided into two parts, a part is produced as copper concentrate product II
Out, another part passes through selected output copper concentrate product III, and two thick tailings are by scanning to obtain true tailings.
2. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: described second
The equipment of roughing includes concatenated at least three flotation cell.
3. the echelon fast-flotation process of copper converter slag ore dressing according to claim 2, it is characterised in that: described second
After roughing, taken in concatenated flotation cell in the first slot or in preceding two slot two rough concentrates of gained as II output of copper concentrate product,
Two rough concentrates in remaining flotation cell carry out selected operation.
4. the echelon fast-flotation process of copper converter slag ore dressing according to claim 3, it is characterised in that: the copper metallurgy turns
When clinker grade is lower than (4 ± 0.2) %, take two rough concentrate of the first slot as II output of copper concentrate product；The copper converter slag
When grade is higher than (4 ± 0.2) %, take preceding two slots, two rough concentrate as II output of copper concentrate product.
5. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: it is described it is selected and
It scans, selected gained tailing and each gained concentrate of scanning return to the processing of second segment grind grading step cycle for the first time.
6. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: described one section
Grinding fineness is that -200 mesh account for 65~70%；The secondary grinding fineness is that -325 mesh account for 85~90%.
7. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: a thick tail
It before mine enters secondary grinding, is first classified, the part that granularity reaches secondary grinding standard is directly entered second of roughing.
8. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: it is described it is selected and
It scans and carries out respectively three times.
9. the echelon fast-flotation process of copper converter slag ore dressing according to claim 8, it is characterised in that: second and third time
Selected gained concentrate returns to upper level circular treatment respectively.
10. the echelon fast-flotation process of copper converter slag ore dressing according to claim 1, it is characterised in that: the roughing
Xanthate and pine tar are added in treatment process with scanning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810985250.3A CN109158222A (en) | 2018-08-28 | 2018-08-28 | A kind of echelon fast-flotation process of copper converter slag ore dressing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810985250.3A CN109158222A (en) | 2018-08-28 | 2018-08-28 | A kind of echelon fast-flotation process of copper converter slag ore dressing |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711647A (en) * | 2019-11-08 | 2020-01-21 | 长春黄金研究院有限公司 | Flotation method for high-grade lean sulfide gold-bearing ore |
| CN110711645A (en) * | 2019-11-08 | 2020-01-21 | 长春黄金研究院有限公司 | Beneficiation method for gold-bearing sulfide ore |
| CN110882834A (en) * | 2019-12-16 | 2020-03-17 | 江西理工大学应用科学学院 | Beneficiation method for efficiently recovering copper from copper smelting slag |
| CN111097591A (en) * | 2019-06-26 | 2020-05-05 | 浙江富冶集团有限公司 | Agent and method for improving recovery rate of copper concentrate from slag separation |
| CN111250256A (en) * | 2020-02-14 | 2020-06-09 | 中国恩菲工程技术有限公司 | Method for selectively grinding and floating and separating copper and lead and zinc in copper smelting blowing slag |
| CN111921700A (en) * | 2020-07-13 | 2020-11-13 | 黑龙江科技大学 | Method for comprehensively recovering multiple metals in copper smelting slag |
| CN112718233A (en) * | 2020-12-30 | 2021-04-30 | 铜陵有色金属集团股份有限公司 | Method for comprehensively recovering copper minerals and iron minerals from copper converter slag |
| CN112892855A (en) * | 2021-01-07 | 2021-06-04 | 易门铜业有限公司 | Method for comprehensively recovering valuable metals in copper smelting mixed slag |
| CN114405685A (en) * | 2022-01-06 | 2022-04-29 | 浙江富冶集团有限公司 | Sodium sulfide beneficiation method for high-iron binary system smelting slag |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097591A (en) * | 2019-06-26 | 2020-05-05 | 浙江富冶集团有限公司 | Agent and method for improving recovery rate of copper concentrate from slag separation |
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| CN111250256A (en) * | 2020-02-14 | 2020-06-09 | 中国恩菲工程技术有限公司 | Method for selectively grinding and floating and separating copper and lead and zinc in copper smelting blowing slag |
| CN111921700A (en) * | 2020-07-13 | 2020-11-13 | 黑龙江科技大学 | Method for comprehensively recovering multiple metals in copper smelting slag |
| CN112718233A (en) * | 2020-12-30 | 2021-04-30 | 铜陵有色金属集团股份有限公司 | Method for comprehensively recovering copper minerals and iron minerals from copper converter slag |
| CN112892855A (en) * | 2021-01-07 | 2021-06-04 | 易门铜业有限公司 | Method for comprehensively recovering valuable metals in copper smelting mixed slag |
| CN114405685A (en) * | 2022-01-06 | 2022-04-29 | 浙江富冶集团有限公司 | Sodium sulfide beneficiation method for high-iron binary system smelting slag |
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Application publication date: 20190108 |