我矿是富含石 英脉的露天矿床, 矿岩中含二氧化矽在95%以上。在二次破碎和边坡修理工作中,小风钻产生大量矽尘,长期飘浮在采场中,对人危害很大。由于我矿地处高寒地带,不适合湿式凿岩。我们于1977年,在指挥部和矿领导的支持与关怀下,研制了小风钻干式捕尘器。经过现场使用,证明 Mine is rich in quartz veins open-pit deposits, ore containing silica in more than 95%. In the secondary crushing and slope repair work, a small amount of wind dust generated silica dust, long-term floating in the stope, a great harm to people. As mine is located in the alpine zone, not suitable for wet rock drilling. In 1977, with the support and care of the headquarters and the mine leaders, we developed a small wind-driven dry-type dust catcher. After field use, prove