本文介绍瓦利亚夫科矿山中央选矿厂使用跳汰重选铁矿石的试验情况。试验的原矿具有各种不同的铁品位及粒级，甚至尾矿。认为采用多股料流流动跳汰的空气脉动型跳汰机具有较高的回收率和较大的经济效益，并无需脱泥和预跳汰． This article describes the test of the use of jigging and re-election of iron ore at the Central Concentrator at Valleyiafco. The raw ore tested has a variety of different iron grades and sizes, and even tailings. It is considered that the air pulsating jig adopting multi-stream flow jig has higher recovery rate and larger economic benefits, and does not need to desliming and pre-jigging.