弹性反跳分选机研制及其选别效果一、绪论国内滑石及煤炭资源的赋存条件大部分是不规则的，随着开采深度的日益增加，品位也逐渐降低。从而，小规模矿山的开采条件大部分恶化且人工费用上升，使效益下降。目前滑石矿山尚不能处理采出的全部矿石，只能处理容易手选的中、大... Elastic rebound classifier development and sorting results I. INTRODUCTION Most of the domestic talc and coal resource conditions for the occurrence of irregular, with the increasing depth of mining, the grade also gradually reduced. As a result, most of the mining conditions in small-scale mines have deteriorated and labor costs have risen, resulting in diminished returns. At present, the talc mines can not handle all the ore that has been mined yet and can only deal with medium and large sized hand-picked ones.