CN1943869A - Step branched ore milling and milling and dressing circular new technology - Google Patents
Step branched ore milling and milling and dressing circular new technology Download PDFInfo
- Publication number
- CN1943869A CN1943869A CN 200610124838 CN200610124838A CN1943869A CN 1943869 A CN1943869 A CN 1943869A CN 200610124838 CN200610124838 CN 200610124838 CN 200610124838 A CN200610124838 A CN 200610124838A CN 1943869 A CN1943869 A CN 1943869A
- Authority
- CN
- China
- Prior art keywords
- ore
- mill
- enters
- milling
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to the non-ferrous ore milling and separating process. The process includes sieving the crude ore into three size fractions, including 4 mm over fraction to the ore mill for milling to 3 mm below size, 2-4 mm fraction to the jigger for enriching and 2 mm below fraction to the screw chute system for enriching and to the table floating system for separating; milling crude ore in the crude ore mill; enriching in the jigger; grading after milling; separating in the table floating system and the screw chute system to obtain ore concentrate; and milling the concentrated tailings to recover target metals before draining ore slag. The present invention has sufficient milling and high metal recovering rate.
Description
Technical field
The ore grinding and the ore grinding that the present invention relates to one or more metalliferous minerals sort technology, prevent that particularly the mineral of multiple composition from producing the new technology of pulverizing at grinding process.
Background technology
Grinding operation is a most important link in the ore-dressing technique, because the liberation degree of minerals difference of different minerals, FLOTATION SEPARATION is separated desired granularity state difference with gravity treatment, so the requirement of grinding particle size is also different, remain at present the granularity that ore grinding of raw ore is needed to sorting operation both at home and abroad, or consider the ore grinding ratio, energy consumption, the material consumption, factors such as granularity are milled to earlier behind 3～5mm through second section ore grinding to required release mesh again, this is at chemical industry, metal, be very general in the nonmetal ore-dressing factory, this is feasible for most of ore, also have an economic benefit most, but for tin, tungsten, the ore of the crisp easy powder of property such as tantalum niobium is inappropriate, ore with the poor cassiterite polymetallic sulphide ore type of Guangxi Da Chang is an example especially, the mineral composition more complicated, mineral constituent is many in the raw ore, metallic element is many, the symbiosis complexity, sulphide ore and oxide ore coexistence, washability difference is big, purpose metalliferous mineral grade is low, and (the purpose ore deposit is stanniferous grade about 0.5% only, plumbous antimony 0.45%, zinc 2.0% or lower), essential mineral in the raw ore has cassiterite, marmatite, jamesonite, pyrite, magnetic iron ore, mispickel, galena, zincblende, chalcopyrite, stannite, quartzy, calcite etc., contained unit have tin, plumbous, antimony, zinc, iron, copper, sulphur, arsenic, gold, silver, indium, cadmium, gallium etc., wherein cassiterite grindability characteristics are that property is crisp frangible, easy powder; The grindability of marmatite, jamesonite, pyrite, magnetic iron ore, mispickel, galena, zincblende, chalcopyrite, stannite then is harder, non-friable, difficult mill; Quartzy, the grindability of calcite is the hardness maximum, the most difficult mill, and be difficult for powder, while cassiterite, marmatite, jamesonite and quartz, gangue minerals such as calcite are mutual symbiosis, mutual embedding cloth, relation is complicated, disseminated grain size is not of uniform size, if when therefore cassiterite being milled to release mesh, the granularity of then plumbous antimony zinc sulphur does not just reach requirement, do not realize monomer dissociation, if when plumbous antimony zinc sulphur is milled to release mesh, then to cross powder already be sludge to cassiterite, can't from subsequent job, be recovered to the cassiterite product, this cassiterite is crossed the phenomenon that the powder sulphide ore is owed to grind, and is all perplexing dresser author and enterprise all the time, is the emphasis and the difficult point of national science and technology tackling key problem for many years.
For the mineral that overcome in the existing ore grinding technology are crossed pulverizing, some documents disclose some and had prevented the method for pulverizing in recent years, the employing that has changes milling medium, as special-shaped medium: cast iron section, baseball, hexahedron, hemisphere or recessed ball etc., what have studies ore grinding liner plate and grinding mode, as Vertical Mill, air mill, ore grinding ore discharge mode etc., what have improves grinding process, is just relating to the research of following aspects in for example following Indexing of Scien. and Tech. Literature:
1, [mechanism] Nanchang Engineering ﹠ Research Institute of Nonferrous Metals [periodical name] metal mine .2000 (7) .-17-19 of [author] Yuan Guo, 57[digest are proved in the copper ore dressing technological process of [autograph] Purple Mountain] Purple Mountain copper mine is one of large-scale copper mine of verifying in the recent period of China.The beneficiation test result who finishes so far in conjunction with this ore deposit in the literary composition has discussed the mineral processing circuit of adoptable adaptation ore character; To ore grinding-flotation process scheme, by complex art economy relatively, recommend primary grinding (200 orders account for 60%), substep selective flotation flowsheet.The conventional choosing separating flotation flow process of regrinding of mixing also fails to have obtained index, is that copper easily is lost in the sulphur concentrate because all copper concentrates obtain under high basicity.Adopt preferential the mixing of part to select the sorting flow process of regrinding, under best flotation conditions, preferentially select the high-grade copper concentrate, avoid most copper to enter people's regrinding and reconcentration system, thereby reduced the loss of copper; Then will be than difficult floating copper mineral and pyrite bulk flotation, after fully being dissociated, copper, sulphur separates as if suitable operation again, can obtain index.Process is to one section and secondary grinding, conventional diffeential floatation and substep diffeential floatation, the mixed preferential mixed regrinding and reconcentration that selects of regrinding and reconcentration and part that selects of routine carries out the exploration of multi-scheme open-circuit test, filter out 3 schemes: the diffeential floatation of primary grinding substep, secondary grinding diffeential floatation step by step select the separating flotation of regrinding to carry out closed-circuit test with preferential the mixing of part, have all obtained good index.
2, research [author] Zhang Guofan [1] Feng Qiming [1] Chen Qiyuan [2] the Zhang Ping people [2] [mechanism] [1] the Central South University's resources processing and the bioengineering institute of milling medium in [autograph] selective bauxite ore grinding, [2] Central South University's chemical institute, [periodical name] Central South University's journal: natural science edition .2004,35 (4) .-552-556[digests] studied the effect of spherical, short cylindrical shape and short cylindrical+3 kinds of milling mediums of sphere to the selective bauxite ore grinding.Result of study shows: the major diameter spherical medium is bigger to the impulsive force of coarse fraction bauxite, causes pulverizing easily, and the scrubbing action of minor diameter spherical medium can improve the alumina silica ratio of coarse fraction bauxite; The short cylindrical medium has selectivity preferably to bauxite Milling, but less to the increase rate of alumina silica ratio, grinding rate is lower; Short cylindrical+spherical medium has the advantage of spherical medium and short cylindrical medium, has both had higher grinding rate, can improve coarsely graded alumina silica ratio greatly again, is fit to the requirement of selective bauxite ore grinding.For short cylindrical+spherical medium, medium size composition has tangible influence to the grinding efficiency of selective bauxite ore grinding.
3, [autograph] reduces the ball mill ore grinding and crosses pre-test [author] Cheng Jinchen [mechanism] the Kaifeng zine-smelting plant of breaking method [periodical name] coloured equipment .1997 (3) .-11-17[digest] by to influencing the analysis of ball mill grinding efficiency related factors, find out the generation reason that ore grinding is crossed pulverizing: it is unreasonable and rotating speed is improper mainly to be to grind Jie's proportioning; Minimizing ball mill ore grinding further is discussed is crossed six kinds of methods of pulverizing.
Above-mentioned document has just proposed some and had prevented the method for pulverizing, but to the mineral of multiple composition and different structure are arranged, will prevent from fully to pulverize not is to be easy to accomplish, mixed minerals such as cassiterite, jamesonite, marmatite, quartz particularly, because the mineral complexity, the way that solves is few at present.
Da Chang poor tin-polymetallic sulphide ore in Guangxi is a kind of many mineral of complexity, the association or the concurrence ore of multiple metallic element, the character complexity, and in the past, the technical staff in ore dressing plant also studies the method for the character of mineral and ore grinding, ore dressing.We have provided grinding operation flow chart in the past and (have seen Figure of description in Figure of description, Fig. 1) technology of this ore grinding is summarized as follows: after raw ore is transported to the ore dressing plant from the mine, become three products through bolting, greater than the material of 4mm enter 1#, the 2# ore mill carries out ore grinding; Material (stanniferous is more) less than 2mm enters the table flotation system, directly output tin concentrate; The mineral of 2-4mm enter jigging machine to carry out enrichment and sorts, and first, second and third chamber concentrate particle of jigging machine is thicker, need enter 3#, the 4# ore mill carries out ore grinding, and the mine tailing of jigging machine is lost as true tailings.After the material process spiral classifier classification behind 3#, the 4# ore mill ore grinding, 3#, 4# ore mill are returned in sand return, and overflow enters complete floating operation.Though this technology table flotation system energy recovery section is the cassiterite of monomer dissociation, but because one section mill and two sections mills all are once ore to be milled to the granularity that needs, fail fundamentally to solve cassiterite and cross the contradiction that the powder sulphide ore is owed to grind, two sections mills particularly, when be milled to-sulphide ore can be at the complete floating complete emersion of operation during 0.3mm, enter plumbous zinc sulphur content from operation through froth pulp, but because cassiterite is more crisp, most powder excessively are sludge, with the entrainment loss of sulphide ore foam or by losing in loss in the overflow of dewatering operation or the mine tailing by the back heavy work, the rate of recovery of back heavy work obviously descends; Simultaneously because spiral classifier is by the classifying equipoment of waterpower than weight classification, the part coarse grain cassiterite of monomer dissociation enters sand return as heavy mineral and gets back to grinding machine and regrind, the powder and the argillization excessively of cassiterite have further been increased the weight of, reduced the recovery of cassiterite, yet roughly grinding then, sulphide ore does not reach monomer dissociation, emersion smoothly in the floating full operation of sulphide ore is unfavorable for the recovery of sulphide ore, and this conspicuous contradiction never obtains fine solution for many years.
Summary of the invention
The raw ore (multielement, multicomponent, multiple embedding cloth structure and the extremely uneven mineral of disseminated grain size) that the objective of the invention is at ore character complexity is easy to take place the ore grinding new technology that crushing phenomenon proposes at grinding process
The technical scheme that step branched ore milling of the present invention and mill dressing circular new technology propose is that the time in grinding production technology of above-mentioned Fig. 1 is improved, and concrete process is as follows:
(1) after raw ore is transported to the ore dressing plant from the mine, press the different grain size characteristic, through the bolting classification, three other materials of level of output, greater than the material of 4mm enter 1#, the 2# ore mill carries out ore grinding; Material less than 2mm enters the table flotation system, carries out flotation;
(2) method that can grind characteristic, different grades according to difference is divided stage material, the material of the 2-4mm that tells from vibratory sieve enters jigging machine, jigging machine enrichment output one Room rough concentrate, two Room rough concentrates, three Room rough concentrate and mine tailings, begin to carry out the first substep operation here, promptly a Room rough concentrate enters the 8# ore mill separately, enters the table flotation system afterwards; Two Room rough concentrates enter the 3# ore mill separately, and simultaneously, the table flotation system adopts the method for classification enrichment, and the material of 1-2mm is delivered to the 3# ore mill; The mine tailing of three Room rough concentrates and classification enrichment enters the 4# ore mill, and the jigging machine mine tailing then enters the 6# ore mill.
(3) adopt spiral classifier not closed circuit with ore grinding, and it is closed circuit with the table flotation system, form the mode of mill choosing circulation, 3#, 4# ore mill ore discharge are respectively after the spiral classifier classification, it is floating entirely that the spiral classifier overflow enters sulphide ore, and the spiral shell that sand return enters before the table flotation system is slipped into capable enrichment, and the rough concentrate after the enrichment enters the table flotation system, mine tailing after the enrichment enters the 6# ore mill and regrinds, and enters mine tailing enriching and recovering system afterwards.
Vibratory sieve used in the present invention, jigging machine and ore mill are identical with existing machine theory structure, just the change of essence has taken place in grinding process, realized the different grain size characteristic, different grades (or tenor), the ore of different grindabilitys enters different ore mills, different ore mills is by the difference to the ore deposit characteristic, the requirement difference of ore discharge granularity and concentration, the milling medium that adds different kinds and quantity carries out ore grinding, obviously improved grinding environment, solve cassiterite and crossed the contradiction that powder and sulphide ore are owed to grind, cassiterite and sulphide ore have all obtained preferably reclaiming, so mineral processing index and economic benefit increase substantially.
The course of work of the present invention is:
1, after bolting, enter 1#2# raw ore mill greater than the material of 4mm, add the wear-resisting rod iron of Φ 120mm, once be milled to-3mm accounts for 70%.
2, after bolting, enter jigging machine greater than 2mm less than the material of 4mm, jigging machine adopts jigging machine commonly used at present, jigging machine one, two, three Room rough concentrates ore grinding are respectively handled, reduce by three the phase mutual interference of chamber rough concentrate of different nature in grinding process, feed corresponding ore mill respectively by the close principle of ore character again after the mine tailing classification enrichment in the table flotation.
3, thick, of high grade to disseminated grain size, contain the few jigging of gangue amount one Room rough concentrate and enter the 8# ore mill, add the wear-resisting rod iron of Φ 60mm and take light mill, corase grind, carry out first branched ore milling, grinding particle size accounts for 20%～30% for-60 orders, purpose is the cassiterite powder and directly enter table flotation sorting operation, the tin concentrate that output is qualified only that guarantees coarse grain pincers cloth.
4, for the high grade ore of mine tailing after enrichment in jigging two Room rough concentrates and the table flotation because it mostly is intergrowth greatly, in thick disseminated grain size, therefore in 3#, add an amount of rod of forging and carry out fine grinding, grinding particle size requires to account for 60%～70% at-200 orders; For the poor value of mine tailing after enrichment in jigging three Room rough concentrates and the table flotation, because disseminated grain size is thin, metal content is low, gangue content is high, adds steel ball and adopt strong mill, grinding particle size requires-200 orders to account for 80%; Mine tailing after jigging mine tailing and the spiral shell slide enrichment is owing to contain a large amount of gangue minerals, and purpose metallic ore grade low (tin content only-0.1%) adds steel ball and adopts superpower mill.
5, different grinding mode (rod milling, ball milling, forging mill), different ore grinding intensity (the wear-resisting rod iron of Φ 120mm is different with wear-resisting rod iron of Φ 60mm and medium-weight), different milling mediums (rod iron, steel ball, forging), different ore grinding time are carried out branched ore milling with different ore milling concentrations, purpose is to prevent that material of different nature in the size fractionated section from taking place under identical grinding mode that cassiterite is crossed powder and sulphide ore is owed mill, does not reach and sorts requirement.
6, for 3#, the sand return of 4# ore mill single-screw, because wherein existing a large amount of cassiterite monomer dissociations, therefore no longer return ore grinding but directly enter table flotation system recoveries cassiterite, form the closed circuit flow process of mill choosing circulation, prevent to advance ore mill again and the mistake powder, the not cassiterite and the sulphide ore of monomer dissociation are then regrinded, forced them to grind carefullyyer, reach the requirement of subsequent job.
7, the mine tailing after all are sorted is concentrated i.e. the 3rd substep ore grinding of regrinding and reconcentration, reclaims the part purpose mineral in the mine tailing and forms true tailings (tin content is less than 0.1%) and discharge.
Obvious improvement of the present invention is:
1, mainly be on technology, to provide a kind of cassiterite (or the ore of similar cassiterite character such as tungsten, tantalum niobium etc.) that prevents to cross the method for pulverizing, reduce the argillization of purpose mineral, for follow-up sorting operation is created the good condition that sorts, thereby improve full-range recovery rate in ore-dressing and economic benefit.
2, select circulating technology to use in the similar mine at the low-grade step branched ore milling of complex multi-metal sulphide ore developmental research down at home and abroad with mill, particularly for the ore of the crisp easy powder of property such as tungsten, tantalum niobium, but, identify at present by science and technology item owing to do not see the raw ore that complexity like this is arranged both at home and abroad at present.
3, step branched ore milling and mill select circulating technology fundamentally to solve insurmountable always for many years cassiterite and cross the problem that the powder sulphide ore is owed to grind, the full factory tin rate of recovery has improved 3%, zinc recovery has improved 2%, under the situation that head grade constantly descends, the rate of recovery still remains unchanged and rising is arranged, and economic benefit improves greatly.
Description of drawings
Fig. 1 is the process chart of existing complicated raw ore grinding process.
Fig. 2 is the process chart of the improved complicated raw ore grinding process of the present invention.
The specific embodiment
Fig. 1 is illustrated in the above-mentioned background technology, briefly explains here again:
Raw ore enters after the screening system, sieves immediately, tells the upper sieve oversize, and two sections mills are handled mine tailing in jigging one, two, three Room concentrate and the table flotation shaking table, and spiral classifier and two sections mills are closed circuit, and its overflow enters the sulphide ore bulk flotation.
The present invention of being shown in Figure 2 improves the time in grinding production technology of Fig. 1:
Raw ore is through sieving into three products, entering raw ore greater than the material of 4mm is milled to less than the 3mm grade and accounts for 70%, enter jigging less than 4mm greater than the material of 2mm and carry out enrichment, entering garden awl spiral shell less than the material of 2mm slips and enters the table flotation system again after system's enrichment and sort, raw ore mill beginning first substep here, jigging one Room, two Room, three Room and mine tailing enter the 8# mill respectively, the 3# mill, the 4# mill carries out three branched ore millings of second substep, grinding particle size is that 8# mill-60 orders account for 20%～30%, the 3# mill, 4# mill spiral overflow-200 order accounts for 70%, the 3# mill, the hair concentrate merging that table flotation system and garden awl spiral shell slide system are returned in the spiral sand return of 4# mill sorts, the tin concentrate that output is qualified, form mill and select circulation technology, the 3rd substep is that all mine tailings are concentrated ore grinding through the 6# mill, forms last mine tailing behind the recovery purpose metal wherein and discharges.
Step branched ore milling of the present invention and mill select circulating technology except can handling cassiterite polymetallic sulphide ore, also can be at the application aspect other nonferrous metals ore of processing, for example bauxite, manganese ore etc.
Claims (3)
1, the new technology of a kind of step branched ore milling and mill choosing circulation comprises raw ore is carried out the process that sieve classification and jigging, table flotation, sand return sort, and it is characterized in that:
(1) after raw ore is transported to the ore dressing plant from the mine, press the different grain size characteristic, through the bolting classification, three other materials of level of output enter 1 greater than the material of 4mm
#, 2
#Ore mill carries out ore grinding; Material less than 2mm enters the table flotation system, carries out flotation;
(2) method that can grind characteristic, different grades according to difference is divided stage material, the material of the 2-4mm that tells from vibratory sieve enters jigging machine, jigging machine enrichment output one Room rough concentrate, two Room rough concentrates, three Room rough concentrate and mine tailings, begin to carry out the first substep operation here, promptly a Room rough concentrate enters 8 separately
#Ore mill enters the table flotation system afterwards; Two Room rough concentrates enter 3 separately
#Ore mill, simultaneously, the table flotation system adopts the method for classification enrichment, and the material of 1-2mm is delivered to 3
#Ore mill; The mine tailing of three Room rough concentrates and classification enrichment enters 4
#Ore mill, the jigging machine mine tailing then enters 6
#Ore mill;
(3) adopt spiral classifier not closed circuit with ore grinding, and it is closed circuit with the table flotation system, form the mode of mill choosing circulation, 3#, 4# ore mill ore discharge are respectively after the spiral classifier classification, it is floating entirely that the spiral classifier overflow enters sulphide ore, the spiral shell that sand return enters before the table flotation system is slipped into capable enrichment, and the rough concentrate after the enrichment enters the table flotation system, and the mine tailing after the enrichment enters 6
#Ore mill is regrinded, and enters mine tailing enriching and recovering system afterwards.
2, the The application of new technique of described step branched ore milling of a kind of claim 1 and mill choosing circulation, it is characterized in that: this technology is aspect the mineral of the crisp easy powder of property such as the similar cassiterite of processing, as the application of complex multi-metal mineral such as tungsten, tantalum niobium.
3, the The application of new technique of described step branched ore milling of a kind of claim 1 and mill choosing circulation, it is characterized in that: this technology is in the application of handling aspects such as similar nonferrous metals ore, ferrous metal ore, nonmetallic ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101248387A CN100471574C (en) | 2006-10-19 | 2006-10-19 | Method of step-by-step branch grinding and grinding cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101248387A CN100471574C (en) | 2006-10-19 | 2006-10-19 | Method of step-by-step branch grinding and grinding cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1943869A true CN1943869A (en) | 2007-04-11 |
| CN100471574C CN100471574C (en) | 2009-03-25 |
Family
ID=38043651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101248387A Expired - Fee Related CN100471574C (en) | 2006-10-19 | 2006-10-19 | Method of step-by-step branch grinding and grinding cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100471574C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228866A (en) * | 2011-04-18 | 2011-11-02 | 昆明理工大学 | Compound classification method and equipment for ground ore product |
| CN102500462A (en) * | 2011-10-19 | 2012-06-20 | 昆明理工大学 | Rutile roughing technology consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation |
| CN104941781A (en) * | 2015-06-30 | 2015-09-30 | 广西华锡集团股份有限公司车河选矿厂 | Grading method for polymetallic ores |
| CN105016091A (en) * | 2015-05-29 | 2015-11-04 | 内蒙古上海庙矿业有限责任公司 | Coal sale collecting/distributing device |
| CN105057087A (en) * | 2015-08-07 | 2015-11-18 | 广西冶金研究院 | Tin-tungsten ore selection method |
| CN109499748A (en) * | 2019-01-09 | 2019-03-22 | 南宁穗驰科技有限公司 | The method of Mineral separation cassiterite and gangue in grinding circuit |
| CN111001486A (en) * | 2019-11-29 | 2020-04-14 | 广东省资源综合利用研究所 | Method for optimizing grinding fineness of silver-tin multi-metal paragenetic ore based on raw ore grade ratio |
| CN112570137A (en) * | 2020-05-20 | 2021-03-30 | 汕头市国富锆钛实业有限公司 | Beneficiation method for separating zirconite by using grading jigger |
| CN112718235A (en) * | 2020-11-16 | 2021-04-30 | 内蒙古维拉斯托矿业有限公司 | Tungsten-tin comprehensive recovery combined reselection method |
| CN113908973A (en) * | 2021-08-18 | 2022-01-11 | 西北矿冶研究院 | Beneficiation method for copper-gold tailings from complex sources |
| CN114918037A (en) * | 2022-05-09 | 2022-08-19 | 昆明理工大学 | A kind of low-grade complex copper-tin-sulfur polymetallic ore cascade recovery method for valuable metals |
| CN115254394A (en) * | 2022-05-05 | 2022-11-01 | 中国矿业大学(北京) | Coarse grain grinding, sorting and branch enriching method for high-arsenic tin polymetallic ore |
| CN116351550A (en) * | 2023-03-20 | 2023-06-30 | 盛和资源(连云港)新材料科技有限公司 | A energy-saving and high-yield zircon rutile mineral processing process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
-
2006
- 2006-10-19 CN CNB2006101248387A patent/CN100471574C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228866A (en) * | 2011-04-18 | 2011-11-02 | 昆明理工大学 | Compound classification method and equipment for ground ore product |
| CN102500462A (en) * | 2011-10-19 | 2012-06-20 | 昆明理工大学 | Rutile roughing technology consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation |
| CN102500462B (en) * | 2011-10-19 | 2013-09-11 | 昆明理工大学 | Rutile roughing technology consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation |
| CN105016091A (en) * | 2015-05-29 | 2015-11-04 | 内蒙古上海庙矿业有限责任公司 | Coal sale collecting/distributing device |
| CN105016091B (en) * | 2015-05-29 | 2018-08-17 | 内蒙古上海庙矿业有限责任公司 | Sell terminal apparatus to a kind of coal |
| CN104941781A (en) * | 2015-06-30 | 2015-09-30 | 广西华锡集团股份有限公司车河选矿厂 | Grading method for polymetallic ores |
| CN105057087A (en) * | 2015-08-07 | 2015-11-18 | 广西冶金研究院 | Tin-tungsten ore selection method |
| CN109499748B (en) * | 2019-01-09 | 2020-11-24 | 南宁穗驰科技有限公司 | Method for separating cassiterite and gangue in ore grinding circuit by selecting ore |
| CN109499748A (en) * | 2019-01-09 | 2019-03-22 | 南宁穗驰科技有限公司 | The method of Mineral separation cassiterite and gangue in grinding circuit |
| CN111001486A (en) * | 2019-11-29 | 2020-04-14 | 广东省资源综合利用研究所 | Method for optimizing grinding fineness of silver-tin multi-metal paragenetic ore based on raw ore grade ratio |
| CN112570137A (en) * | 2020-05-20 | 2021-03-30 | 汕头市国富锆钛实业有限公司 | Beneficiation method for separating zirconite by using grading jigger |
| CN112718235A (en) * | 2020-11-16 | 2021-04-30 | 内蒙古维拉斯托矿业有限公司 | Tungsten-tin comprehensive recovery combined reselection method |
| CN112718235B (en) * | 2020-11-16 | 2023-03-21 | 内蒙古维拉斯托矿业有限公司 | Tungsten-tin comprehensive recovery combined reselection method |
| CN113908973A (en) * | 2021-08-18 | 2022-01-11 | 西北矿冶研究院 | Beneficiation method for copper-gold tailings from complex sources |
| CN115254394A (en) * | 2022-05-05 | 2022-11-01 | 中国矿业大学(北京) | Coarse grain grinding, sorting and branch enriching method for high-arsenic tin polymetallic ore |
| CN115254394B (en) * | 2022-05-05 | 2025-09-30 | 中国矿业大学(北京) | A coarse-grain grinding and branch enrichment method for high-arsenic tin polymetallic ore |
| CN114918037A (en) * | 2022-05-09 | 2022-08-19 | 昆明理工大学 | A kind of low-grade complex copper-tin-sulfur polymetallic ore cascade recovery method for valuable metals |
| CN116351550A (en) * | 2023-03-20 | 2023-06-30 | 盛和资源(连云港)新材料科技有限公司 | A energy-saving and high-yield zircon rutile mineral processing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100471574C (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114453129B (en) | Lead zinc ore recycling method | |
| CN104607296B (en) | Ilmenite beneficiation method and equipment | |
| WO2021037243A1 (en) | Pyrrhotite mineral processing method using low-alkali process of flotation followed by magnetic separation | |
| CN106984425B (en) | A kind of sub-prime classification diversion processing method of Lower Grade Micro-fine Grain tin ore | |
| CN111495788B (en) | Method for intelligently and preferentially selecting copper-blue-containing copper sulfide ore by X-ray | |
| CN1164367C (en) | A kind of bastnaesite beneficiation process | |
| Liu et al. | Beneficiation of a low-grade, hematite-magnetite ore in China | |
| CN109482336B (en) | Novel gravity separation and recovery process for low-grade uranium-niobium-titanium ore | |
| CN105312148A (en) | Beneficiation and enrichment method suitable for associated scheelite in molybdenite flotation tailings | |
| CN111841871A (en) | Beneficiation method for low-grade tungsten ore | |
| CN111068897A (en) | A fine particle magnetite beneficiation process | |
| CN109894268B (en) | Beneficiation method for tailing discarding and refining of wolframite | |
| CN1943869A (en) | Step branched ore milling and milling and dressing circular new technology | |
| CN102773150A (en) | Polymetallic (iron, tin and zinc) ore comprehensive recovery beneficiation method | |
| CN111940126B (en) | A kind of combined recovery method of low-grade tin-containing tailings by gravity and maglev | |
| CN111495574A (en) | Novel low-grade ore preselection process | |
| CN115350809A (en) | A kind of beneficiation process of associated iron ore and barite ore in copper ore | |
| CN112024120B (en) | Beneficiation method for micro-fine-particle-grade hematite and limonite | |
| CN1911523A (en) | Technological method capable of enhancing ore dressing efficiency and ore dressing indox | |
| CN103433122B (en) | A kind of medium tin ore sub-prime classification and sorting technique | |
| CN117299339A (en) | Efficient beneficiation method for comprehensively recycling fluorite in high-fluorite-content flotation tailings | |
| CN115254398B (en) | Method for pre-dressing waste disposal and overgrinding reduction of gold ore | |
| CN112718231A (en) | Beneficiation method of molybdenite of magnesium-rich minerals | |
| CN112206919A (en) | Beneficiation method for obtaining blocky manganese concentrate | |
| CN115814934A (en) | A gravity separation method for recovering fine-grained cassiterite from tailings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |