论文部分内容阅读
某矿700坑口,640米以上采用平硐溜井开拓,自然通风系统示意图如图1.夏季自然风流下行,烟尘由各条贯通井倒流至640主要运输平硐内.在交接班或班中无底柱小中段崩落法采场二次破碎、溜井放矿破碎及留矿法采场电耙道破碎时,640主运平硐烟尘弥漫长达二小时之久才能排出,严重地影响了放矿和运输工作,给安全生产也带来极大威胁.为了解决640主运平硐的污染,现场首先采用密闭各条贯通井筒,采用安设有风墙辅扇的通风方案.由于各条放矿溜井经常放
A mine pit 700, 640 meters above the use of adit to open the chute, natural ventilation system diagram shown in Figure 1. Summer natural romantic down, the dust from all through the well back to 640 major transport adit in the transfer or class without a bottom In the small middle section caving method, the secondary crushing, the chute mining and the mining method and the mining method were used to crush the electric rake road, the dust of the main transport tunnel filled up to two hours long and could not be drained seriously. Transport work to safety production also poses a tremendous threat.In order to solve the 640 main transport adit the pollution, the scene first of all through the closed all through the wellbore, Often put