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Increasing Capacity and Efficiency of Grinding Circuits with High Frequency Screens

机译：带有高频筛的磨削电路的容量和效率的提高

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The objective of this paper is to examine the operation of high frequency screens in closed circuitrngrinding, where the outcomes achieved indicate favourable economic gains at the comminution stagernand downstream processes, including flotation, dewatering, and filtration operations. Thernclassification process in grinding circuits has been slowly evolving within the last century. Thernhistory of classification devices brings to mind rake classifiers and spiral classifiers, which althoughrnhaving higher efficiencies compared to hydrocyclones, were not able to keep pace with the evolutionrnof concentrator equipment treating higher tonnages. This higher tonnage throughput has tended torndrive the concept of utilising hydrocyclones as the classification stage in closed grinding circuits.rnThe comminution process is commonly the most energy intensive stage of mineral processing.rnResearchers have determined that the classification stage in the comminution process has the greatestrnpotential for improvement.rnThis paper is intended to inform mineral process engineers of the benefits that high frequency screensrnoffer over hydrocyclones. This will be done by reviewing the purpose for the evolution ofrnclassification in the comminution process, documenting past and recent studies, and explaining thernmodern technology that is currently available.
机译：本文的目的是检验高频筛在闭路磨削中的运行情况，所获得的结果表明在粉碎阶段和下游工艺（包括浮选，脱水和过滤操作）中，经济收益可观。上个世纪以来，研磨回路的分级方法一直在缓慢发展。分级设备的历史使人们想到了耙式分级机和螺旋分级机，尽管它们与水力旋流器相比效率更高，但是却无法与处理更高吨位的evolutionrnof选矿设备保持同步。如此高的吨位吞吐量往往会破坏使用水力旋流器作为封闭式研磨回路的分级阶段的概念。粉碎过程通常是矿物加工中能耗最高的阶段。研究人员已经确定，粉碎过程的分级阶段具有最大的潜力。本文旨在向矿物工艺工程师介绍高频筛分器对水力旋流器的好处。这将通过审查粉碎过程中进化分类的目的，记录过去和最近的研究并解释当前可用的现代技术来完成。

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