目前,粗粒矿石常用的预选手段有:零介质选矿、跳汰选矿、人工拣选和辐射选矿等。本文主要介绍了动筛跳汰机进行矿石预选的优越性和新型动筛跳汰机的研制情况.除了苏联和联邦德国的研制情况外,我国对粗粒预选用动筛跳汰机亦在进行研制。最近瑶岗仙钨矿选矿厂研制成功一种动筛型粗粒低耗水量跳汰机,能处理18～50毫米甚至更大粒度的矿 At present, the pre-selection methods commonly used for coarse-grained ores include zero-medium dressing, jig dressing, manual sorting and radiation dressing. This article mainly introduces the superiority of moving pre-screening of jigging jig and the development of a new type of moving jig.Except for the development of the Soviet Union and the Federal Republic of Germany, Development. Recently, Yao Gang cents tungsten ore beneficiation plant successfully developed a kind of coarse-grained sieve low-water consumption jig can handle 18 to 50 mm or more grain size mine