CN101664715B - Ore-dressing technique capable of effectively improving comprehensive utilization rate of mine resources - Google Patents
Ore-dressing technique capable of effectively improving comprehensive utilization rate of mine resources Download PDFInfo
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Abstract
An ore-dressing technique capable of effectively improving comprehensive utilization rate of mine resources comprehensively utilizes various ore-dressing techniques to produce diversified serial products with different qualities mainly aiming at the metal ore bed having main elements such as tungsten, tin, tantalum and niobium as well as secondary elements such as lithium, rubidium, cesium and feldspar and the like according to the features and market requirements of the mine ores, comprising the following steps: recovering tantalum and niobium by adopting the heavy dressing technique; recovering fine lepidolite ores by flotation after heavy dressing and desliming the tail ores; floating the tail ores and conducting rough separating, ion-removing, grading and de-watering to obtain the rough and fine lithium feldspar powder respectively; and combining all tail ores and press-filtering to obtain the low-grade feldspar products. The invention can change the resource utilization from the existing 'more recovering, little discharging' into 'full recovering, zero discharging' for the mine ores, and maximizes the comprehensive utilization of mine resources, leads the comprehensive utilization rate of the mine resources to reach more than 95%, and basically realizes zero tail ores discharging.
Description
Technical field
The present invention relates to a kind of ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio, relate in particular to a kind ofly take tungsten, tin, tantalum, niobium as main, have the polymetallic deposit of lithium, rubidium, caesium, feldspar etc. concurrently, the ore-dressing technique that the comprehensive utilization of resources rate is significantly improved.
Background technology
Along with the fast development of economy, resource consumption is increasing, thereby has accelerated the anxiety supply degree of mineral resources.At present, nonferrous metal mine comprehensive utilization of resources rate is only in 35% left and right, and the comprehensive utilization of resources rate reaches 70% mine and only accounts for 2%; Non-renewable due to resource, country always actively advocates and encourages enterprise to carry out comprehensive reutilization to mineral resources.Requirement according to the national development recycling economy, be necessary to invent a kind of new ore-dressing technique, namely according to mine ore properties characteristics and the market demand, the various beneficiation methods of integrated application and technology, produce the diversification series of products of different qualities, by present " reclaim, few discharging ", change as far as possible " the full recovery; zero-emission " into more, realize that the mineral resources comprehensive utilization level maximizes.
Summary of the invention
The purpose of this invention is to provide a kind of can be effectively and significantly improve the ore-dressing technique of mine resources comprehensive utilization ratio, substantially realize the mill tailings zero-emission.
The ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio of the present invention, mainly be adapted to have the polymetallic deposit of lithium, rubidium, caesium, feldspar etc. concurrently take tungsten, tin, tantalum, niobium as main, it is characterized in that: adopt gravity separation technology to reclaim the tantalum niobium; The gravity tailings desliming is reclaimed the lepidolite concentrate by flotation; Flotation tailing again through every thick, deferrization, classification, dehydration obtain respectively slightly, particulate lithium feldspar powder product; All mine tailings merge through the low-grade feldspar powder product of press filtration acquisition.
The ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio of the present invention, it is characterized in that: according to the difference of specific gravity of valuable mineral and gangue mineral, classification gravity concentration reclaims the tantalum niobium, adopt spiral chute one roughing, once purging selection to throw tail, the gravity separation technology that the spiral chute concentrate selects through table concentration, inferior concentrate final election, chats more again; , for avoiding the interference of coarse-grained material to the fine fraction valuable mineral, adopt preparation of sized raw coal, to guarantee tantalum niobium rate of recovery index simultaneously.Can, according to market demands, by groove, intercept respectively and obtain high and low grade lepidolite concentrate product in production.And rubidium, cesium element are enriched in the lepidolite concentrate, by smelting, can effectively reclaim.Flotation tailing is again by obtaining respectively coarse grain lithium feldspar powder product, particulate lithium feldspar powder product every thick, deferrization, classification, dehydration.All mine tailings concentrate by the filter press dehydration and obtain low-grade feldspar powder by concentrator, realize without the mine tailing ore dressing.
The ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio of the present invention,, to take tungsten, tin, tantalum, niobium as main, have the polymetallic deposit of lithium, rubidium, caesium, feldspar etc. concurrently, the various ore-dressing techniques of integrated application, the mine resources comprehensive utilization ratio is reached more than 95%, realize without the mine tailing ore-dressing technique.Reclaim tantalum niobium valuable mineral by gravity treatment, adopt high-frequency screen every thick, cyclone classification, the deironing of magnetic separator multistage and filter dehydration etc., improved quality thick, particulate feldspar product, met the different market demands, improved the competitiveness of product in market.Adopt simultaneously filtering equipment to reclaim low-grade feldspar powder, finally realize the mill tailings zero-emission, meet the requirement of recycling economy development.
Description of drawings
Fig. 1 is the mineral processing circuit figure that can effectively improve the mine resources comprehensive utilization ratio of the present invention.
The specific embodiment
The ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio of the present invention,, for take tungsten, tin, tantalum, niobium as main, have the polymetallic deposit of lithium, rubidium, caesium, feldspar etc. concurrently, and its implementation process is as follows:
Product introduction mill heavy industry section after washup, muck, primary grinding forms closed circuit by rod mill and MICHAEL DRAKE high frequency vibrating fine screen, the ore milling product granularity is 0.5～0mm, enter the spiral classifier classification after the ore milling product deferrization, its sand return enters one section coarse fraction and sorts system, output tantalum-niobium concentrate and mine tailing, overflow through sloughing-selected separately after the 0.038mm grade, output tantalum-niobium concentrate and mine tailing ,-0.038mm grade enters the secondary fine system.One section sorts mine tailing and enters secondary grinding, and secondary grinding consists of closed circuit ball mill and high frequency fine screen, and the secondary grinding product granularity is-0.2mm.Classification output again-0.2+0.038mm after the deferrization of secondary grinding product ,-two grades of 0.038mm ,-0.2+0.038mm grade material enters two sections fine fractions and sorts system, output tantalum-niobium concentrate and mine tailing ,-0.038mm grade material enters the secondary fine system.Two sections sort mine tailing through high-frequency screen every slightly, again through cyclone classification remove-enter floatation system, the high and low grade lepidolite of output concentrate after 0.038mm grade part.Flotation tailing filters output coarse grain feldspar powder through spiral classifier classification, sand return; All overflows merging are concentrated through cyclone, filtration output particulate feldspar powder; Secondary fine system-0.038mm grade material sorts through the laggard paving cloth chute of concentrator dehydration, shaking table, output tantalum-niobium concentrate and mine tailing; All mine tailings are merged into the concentrated laggard filter press dehydration of concentrator, the low-quality feldspar product of output.The final output tantalum-niobium concentrate in ore dressing plant, high and low grade lepidolite concentrate, thick, thin lithium feldspar powder and low-quality feldspar product; All concentrators, filter and the whole Returning process of filter press overflow water recycle.This technique can realize the mine tailing zero-emission, and mineral resources reach whole utilizations substantially.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the general technical staff of the technical field of the invention; make without departing from the inventive concept of the premise some alternative or obvious modification that are equal to; and performance or purposes identical, should be considered as belonging to the protection domain that the present invention is determined by claims of submitting to.
Claims (1)
1. the ore-dressing technique that can effectively improve the mine resources comprehensive utilization ratio,, to take tungsten, tin, tantalum, niobium as main, have the polymetallic deposit of lithium, rubidium, caesium, feldspar concurrently, it is characterized in that: adopt gravity separation technology to reclaim the tantalum niobium; Do not need ore grinding directly through flotation, to reclaim lepidolite after the gravity tailings desliming; Flotation tailing again through every thick, deferrization, classification, dehydration obtain respectively slightly, particulate lithium feldspar powder product; All mine tailings merge through the low-grade feldspar product of press filtration acquisition, muck product introduction mill heavy industry section after the raw ore washup, primary grinding forms closed circuit by rod mill and high frequency fine screen, the ore milling product granularity is-0.5mm, enters the spiral classifier classification after the ore milling product deferrization, and its sand return enters one section coarse fraction and sorts system, output tantalum-niobium concentrate and mine tailing, overflow sloughs-and selected separately after the 0.038mm grade, output tantalum-niobium concentrate and mine tailing ,-0.038mm grade enters the secondary fine system; One section sorts mine tailing and enters secondary grinding, secondary grinding forms closed circuit by ball mill and high frequency fine screen, the secondary grinding product granularity is-0.2mm, 0.2～the 0.038mm of classification output again after the deferrization of secondary grinding product ,-two grades of 0.038mm, 0.2～0.038mm material enters two sections fine fractions and sorts system,-0.038mm grade enters secondary fine and sorts system, respectively sorts system produce tantalum-niobium concentrate and mine tailing; Two sections sort mine tailing through high frequency fine screen every slightly, again through cyclone classification remove-enter floatation system after 0.038mm part, the high and low grade lepidolite of output concentrate, flotation tailing filters output coarse grain feldspar powder through spiral classifier classification, sand return; All overflows merging are concentrated through cyclone, filtration output particulate feldspar powder; Secondary fine system-0.038mm material sorts through the laggard paving cloth chute of concentrator dehydration, shaking table, output tantalum-niobium concentrate and mine tailing; All mine tailings are merged into the concentrated laggard filter press dehydration of concentrator, the low-quality feldspar product of output.
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| CN102151616B (en) * | 2011-01-24 | 2014-05-07 | 华东理工大学 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
| CN102430470A (en) * | 2011-12-12 | 2012-05-02 | 浙江大学 | Method for recovering associated rare elements from ion-adsorption type rare earth mine tailings |
| CN102615043A (en) * | 2012-04-17 | 2012-08-01 | 河南神火煤业有限公司薛湖选煤厂 | Coarse slime separation overflow pulp desliming process method |
| CN102872979A (en) * | 2012-10-31 | 2013-01-16 | 中南大学 | Flotation separation technology for lithium and beryllium bulk concentrate |
| CN103962244B (en) * | 2013-02-01 | 2017-02-15 | 中国科学院广州地球化学研究所 | Separation and enrichment treatment process for recycling metal rubidium resource from copper sulfur tailing |
| CN103240185B (en) * | 2013-05-07 | 2014-12-24 | 江西理工大学 | Novel lepidolite flotation method |
| CN103318900B (en) * | 2013-06-05 | 2015-04-22 | 英德市奥胜新材料有限责任公司 | Process for producing albite |
| CN104096627B (en) * | 2014-07-15 | 2016-03-30 | 赣州金环磁选设备有限公司 | The method of the black tungsten beneficiating efficiency of a kind of effective raising |
| CN104178644B (en) * | 2014-07-23 | 2016-04-13 | 湖南鑫生矿冶废弃物综合利用科技有限公司 | The method of rubidium is reclaimed from iron tailings |
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| CN104805311B (en) * | 2015-03-24 | 2017-01-04 | 中国地质科学院矿产综合利用研究所 | Method for extracting rubidium from rubidium-containing feldspar and co-producing silicon fertilizer |
| CN104741245B (en) * | 2015-04-22 | 2017-11-10 | 江西旭锂矿业有限公司 | A kind of Novel lepidolite flotation method and a kind of collecting agent and its application |
| CN104941780B (en) * | 2015-07-02 | 2017-05-31 | 中国瑞林工程技术有限公司 | A kind of ore-dressing technique for efficiently separating tantalum, tin and zinnwaldite |
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| CN105126993B (en) * | 2015-08-21 | 2018-05-15 | 西北矿冶研究院 | A comprehensive recovery process of associated tantalum-niobium ore |
| CN105080705A (en) * | 2015-09-23 | 2015-11-25 | 江西金辉环保科技有限公司 | Method for preparing various minerals from tantalum-niobium ores through combined magnetic separation |
| CN105057091B (en) * | 2015-09-23 | 2017-08-25 | 江西金辉环保科技有限公司 | The method that tantalum-niobium concentrate is reclaimed from tantalum niobium ettle |
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| CN106269170B (en) * | 2016-09-19 | 2019-01-04 | 中南大学 | A method of valuable metal in waste refractory materials is recycled by gravity treatment-kerosene aggregative flotation process integration |
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Address after: 330031 No. 888, Qian Hu Road, Hongjiao Island, Nanchang, Jiangxi. Patentee after: China ruim engineering technology Limited by Share Ltd Address before: No. 1, Bayi Avenue, Nanchang, Jiangxi Province, Jiangxi Patentee before: China Nerin Engineering Co., Ltd. |