对七星矿东四采区下运带式输送系统及制动装置进行了详细计算和分析,得出了突然停电时造成飞车现象的根本原因是制动力矩不够的结论。据此,对原制动装置进行了改造。经实践证实,改造效果良好,为带式输送机下山运输制动装置的选型设计提供可靠的帮助。 The detailed calculation and analysis of the lower belt conveyor system and brake device in Qingsi Mining Area of ​​Qixing Mine are concluded. The conclusion is drawn that the root cause of the phenomenon of speeding in sudden power failure is the conclusion that the braking torque is not enough. In accordance with this, the original braking device was modified. The practice proved that the transformation effect is good, which can provide reliable help for the selection design of the belt conveyor downhill transportation brake device.