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双语推荐：选矿预富集

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国外某铅、锑复杂矿石中主要金属矿物为脆硫锑铅矿及黄铁矿，矿石中的伴生金主要赋存于脆硫锑铅矿中，其次赋存于黄铁矿中。矿石锑品位1.50%，铅品位2.21%，金品位5.1 g/t，对矿石进行选矿提取预富集，有效地回收矿石中各有价金属。此外，对选矿预富集所得的产品的冶炼加工技术进行了探讨。
The minerals of a lead-antimony complex ore from abroad are predominately jamesonite and pyrite, with gold in its native state predominately disseminated in jamesonite and secondarily in pyrite. The ore with 1.50% grade of antimony, 2.21% lead and 5.1 g/t gold, according to beneficiation extraction and preconcentration, effectively recover all valuable mineral, maximize using the mineral value.

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对某低品位黑钨细泥，采用“预先脱硫浮选-离心机重选富集-黑钨细泥粗精矿再浮选”的工艺流程进行了选矿试验研究.试验结果表明，经二次浮选脱硫、一粗一扫离心机重选预富集、一粗三精二扫黑钨细泥粗精矿再精选的浮-重-浮联合工艺流程处理该黑钨细泥，最终可获得含WO3品位为38.01%、回收率为64.27%的钨精矿，较好地回收了该黑钨细泥中的钨矿物.该工艺由于采取了预先脱硫和离心选矿机的粗选富集措施，使整个浮选工艺药剂总用量大幅下降，更有益于节约选矿成本和环境保护.
This paper studies the flowsheet of "pre-desulfurization floatation-centrifuge preenrichment gravity separation-wolframite slime floatation" based on the features of a low grade wolframite slime. The test results show that after the application of the flowsheet of twice roughing sulfur removal, roughing-cleaning centrifuge preenrichment by gravity separation, then roughing three times and cleaning twice scavenging separating wolframite by flotation, the tungsten concentrate with the grade of 33.80 % and the recovery of 61.08 % could be obtained. The tungsten minerals are well recoverd from wolframite slime with the recovery rate of 64.27 %. The flowsheet is cost-effective and environment-friendly for reduced beneficiation reagents dosages by adopting roughing enrichment measures of pre-desulfurization and centrifugal separator .

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对河南某地细粒金红石矿进行了矿石性质及重选富集工艺研究。应用螺旋溜槽、普通矿泥摇床、双曲波摇床、悬振锥面选矿机和Falcon离心选矿机等几种重选设备,对RTi O2品位为2.68%的细粒金红石矿进行了抛尾富集试验。结果表明,新型悬振锥面选矿机对细粒金红石表现出较好的抛尾富集效果,得到的粗精矿品位和回收率分别为9.13%和80.96%,抛尾产率可以达到76%以上。
On the basis of process mineralogy study, finely?disseminated rutile ore containing 2. 68% of RTiO2 was processed separately with spiral chute, traditional shaking table, double?waving shaking table, suspension vibration cone separator and Falcon centrifugal separator in order to discard tailings. The results show that, this rutile ore can be well enriched when suspension vibration cone separator is used for tailings discarding, resulting in 80.96% TiO2 recovery to the rutile concentrate grading 9.13% TiO2 , with the yield of discarded tailings excessing 76%.

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系统介绍了我国钒资源的现状及特点,归纳阐述了钒钛磁铁矿、含钒石煤矿及石墨型钒矿的国内外选矿预先富集工艺技术现状,并对钒资源的选矿技术进行了展望。
The paper introduces the present situation and characteristics of vanadium resource in China,summarizing the current situation of mineral processing technology of pre-concentration for vanadium titano-magnetite, coal mine with vanadium resources, and graphite vanadium ore in domestic and overseas.Moreover, the paper discusses the prospect of beneficiation technology of vanadium resources.

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SLon立环脉动高梯度磁选机利用磁力、脉动流体力和重力的综合力场分选弱磁性矿石,具有富集比大、选矿效率高、设备可靠性高、选矿生产成本低、适应面广、设备作业率高、使用寿命长、易安装和检修工作量小的优点。该机在氧化铁矿、钛铁矿、铬铁矿、锰矿、钨矿选矿和在非金属可除铁提纯工业中得到了广泛的应用。重点介绍该设备在多种金属矿选矿方面的应用。
SLon vertical ring and pulsating high gradient magnetic separator ( SLon VPHGMS) uti-lizes the combined force field of magnetism , pulsating fluid and gravity to continuously separate weakly magnetic minerals .It is equipped with unique pulsating mechanism and possesses the advan-tages of large beneficiation ratio ,high concentration efficiency ,high equipment reliability ,low pro-duction cost ,wide adaptation ,high operation efficiency ,long service life ,easy installation and small maintenance workload.It has been widely used for processing iron oxides ,ilmenite,chromite,man-ganese ores ,tungsten ores and removing iron impurities from nonmetallic ores .In this paper ,the ap-plication of SLon VPHGMS for processing several metallic ores was introduced .

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磷矿是一种重要的化工矿物原料,在工业上主要用于生产磷系肥料,制造黄磷、磷酸、磷化物及其它磷酸盐类产品。由于大量开采,富矿资源逐渐减少,人们被迫从难选的低品位胶磷矿中提取磷系产品。攻克低品位胶磷矿富集的难关是许多科研工作者的目标。本文介绍了我国胶磷矿资源、用途和选矿工艺现状,对现行选矿工艺和选矿药剂进行了评述,指出了胶磷矿选矿的发展趋势。
Phosphate rock was an important chemical raw material , mainly used in industrial production of phosphate fertilizer, yellow phosphorus, phosphoric acid, phosphide, etc..Due to the increased mineral extraction, high-grade ore resources gradually reduced and phosphate series products were forced to get from low grade collophanite , for many researchers to overcome the difficulty from enriching low -grade phosphorite.China''s phosphate rock resources , use and processing technology on the current situation , mineral processing and relevant reagents were reviewed , and the development trend of collophanite ore processing was pointed out.

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采用超声波对某磷矿进行预处理选矿,研究了超声波作用时间与作用功率对颗粒表面电位的影响;超声作用对矿物颗粒粒径的影响;擦洗脱泥和浮选2种选矿方式对超声波强化效果的对比。结果表明,在不改变浮选药剂制度或擦洗条件时,使用超声波前处理能显著提高磷矿富集。
Ultrasonic was used for pretreatment of the mineral separation process. The effects of ultrasonic time and ultrasonic power on the potential of the particle surface were studied. Then, the effect of ultrasonic on the particle size was studied. Scrubbing and lfotation were chosen for the contrast study of the strengthening effect of ultrasonic. The efifciency of phosphorus enrichment would be improved signiifcantly when the reagent system of lfotation and the conditions of scrubbing were not changed.

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对 Knelson离心选矿机的基本分选原理及其在国内外矿山的应用现状进行分析，并结合当前国内外尾矿中锡石的回收现状，以云南个旧某含锡尾矿为例，采用Knelson离心选矿机对锡尾矿中的微细粒锡石进行了初步的试验和探讨，试验结果表明Knelson离心选矿机对锡尾矿中微细粒锡石具有一定的富集效果，离心机精矿中锡的品位和回收率分别为13.6％、58.3％，试验指标要优于摇床重选。
In this paper,the applications of the Knelson concentrator at home and abroad and the principle of benefication were presented.According to the recovery status of cassiterite from tin-bearing tailings,taking tin tailings of Yunnan Province as an example,the feasibility approach to applying Knelson concentrator for the recovery of cassiterite in the gravity separation circuit of bearing-tin tailings were discussed and carried out.The result indicated that Knelson concentrator is more efficient than table concentrator for the recovery of fine-particle cassiterite.The grade and recovery of tin in concentrate are 13.6%and 58.3%.

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某铁矿山选厂尾矿中含铁约9．30％，具有一定的回收价值。为了实现资源的综合利用，试验对该尾矿样进行了选矿试验研究。采用螺旋溜槽进行预先富集，富集粗精矿经再磨后采用两段弱磁磁选，磁场强度为120KA／m，开路试验可以获得品位63．74％，回收率10．09％的铁精矿。该工艺试验指标良好，使尾矿中的铁矿物得到了有效回收，为后续矿山技改提供了技术依据。
The iron contained in the tailings of a dressing plant of an iron mine is 9 .30%, which has certain recovery value .In order to utilize the resource comprehensively , beneficiation tests were carried out .The tailings was treated first by pre -concentration with spiral chute , then the rougher concentrate was reground and went to a two -stage weak magnetic separation with a magnetic inten-sity of 20 KA/m.The open circuit test could output an iron concentrate containing 63.74% TFe with a recovery of 10 .09%.The iron ore has been recovered effectively by the process , and this will provide basis for the mine''s subsequent technical reform .

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针对青海某低品位铅锌矿，利用显微镜下研究、化学分析、电子探针、扫描电镜等手段，查清了矿石的矿物组成，查明了矿石的结构构造，并进行了主要矿物工艺矿物粒度测定。研究结果表明，虽然方铅矿嵌布粒度较细，但方铅矿解理发育，且与周围矿物接触较平直，在磨矿作业中易单体解理，有利于其选矿富集，而闪锌矿由于含量低，嵌布粒度微细，选矿难度较大。
Using microscope , chemical analysis , electron microprobe and scanning electron micros-copy ( SEM) , the mineral composition and structure of a low grade lead -zinc ore were studied and determined , and the process mineral grain size was measured .The research results show that the disseminated grain size of galena was fine , but the cleavage developed well , and the contact bound-ary with the surrounding minerals were straight , which make it easy to monomer dissociate in grind-ing operation , so it was conducive to the beneficiation process .Due to the low content and fine dis-seminated grain size , the separation of sphalerite was difficult .

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