评判选矿设备性能的优劣,目前常用的直观评定法受到很大的局限性;特别当多台的设备参与评判并且各自指标互有高低时,该法就更难明断优劣了。而且选取的评判因素只能限于那些可以用数学精确定量的参数,我们在此称为设备的硬指标(如精矿品位、精矿回收率、选矿富集比等);对于那些无法用数学精确定量的参数,我们称为设备的软指标(如工作可靠性、操作难易度、耐用程度等),该法就显得无能为力了。直观评定法在数据的处理上,一般只采用平均值,然 Judging the pros and cons of mineral processing equipment performance, the commonly used visual assessment method has been greatly limited; especially when more than one device involved in the evaluation and their respective indicators of high and low, the method is more difficult to judge the pros and cons. The selection criteria are limited to those parameters that can be accurately quantified in terms of math, which we call hard indices of equipment (eg concentrate grade, concentrate recovery, concentrate enrichment, etc.); those that can not be accurately quantified mathematically The parameters, which we call soft indices of equipment (such as work reliability, ease of operation, durability, etc.), the law appears to be powerless. Intuitive assessment method in the data processing, generally only use the average, however