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矿井主溜井多位于井底车场附近,进风巷道的旁侧。溜井卸矿时,由于矿石的快速下落,产生了强大的冲击风浪,并带出大量粉尘,严重污染卸矿硐室及其附近的巷道,甚至造成整个入风流的污染。所以,研究溜井卸矿时冲击风流产生的规律及其控制措施,对防止矿内空气污染,保证矿工安全有很大实际意义。 (一)冲击气流的形式空气绕过固体圆球时,在圆球的前部,流线几乎沿着界壁形状而分布,其能量损失主要是在边界层
The main shaft of the mine is mostly located near the bottom of the well and the side of the inlet airway. Chute mine unloading, due to the rapid fall of ore, has a strong impact of storms, and bring a lot of dust, seriously contaminated mine chamber and its adjacent roadway, and even caused the entire air into the pollution. Therefore, the study of the law and its control measures of the impact of the wind flow when discharging the ore slide in the mine has great practical significance for preventing the air pollution in the mine and ensuring the safety of the miners. (A) the impact of the form of air flow When the air around the solid ball, the ball in front of the streamline distribution along the boundary shape almost along the wall, the energy loss is mainly in the boundary layer