为实现井下煤矸分离,采用选择性破碎使煤和矸石存在粒度差异,再通过筛分的方法使两者分离。通过对比地面上常用的选煤方法,并结合井下特殊工况,以选择性破碎和自激振动筛分为原理,设计出一种新型井下煤矸分离设备——选择性破碎筛分机,并通过试验验证了其可行性。 In order to achieve the separation of coal gangue downhole, selective separation of coal and gangue particle size differences, and then through the screening method so that the two separated. By comparing the commonly used coal preparation methods on the ground and the special underground working conditions, a new type of underground coal gangue separation equipment, selective crushing and screening machine, is designed by the principle of selective crushing and self-excited vibration screening The experiment verifies its feasibility.