论文部分内容阅读
在总结我国露天矿缓帮剥离存在一些问题的同时,提出了陡帮剥离、缓帮采矿的概念。它使缓帮剥离存在的问题得以克服,而保留了缓帮采矿的优点。缓帮采矿,有利于开拓新水平和新工作面;有利于备有足够的备采矿量;有利于均衡稳定地采出合格的矿石量;有利于进行矿石品种搭配和质量中和,保持和提高矿石产品质量;有利于最大限度地回采矿石,减少贫化损失,提高回采率,充分利用矿产资源;更重要的是采矿段多集中在采场下部坑底,受其上部和周围岩石剥离工作的时间和空间的控制。
While summing up some problems in the slow-release of the open-pit mine in our country, we put forward the concept of stepping off and slowing down the mining. It overcomes the problems of mitigation and keeps the advantages of slow-moving mining. Slow to help mining, is conducive to open up new levels and new face; is conducive to having enough reserves of mining; is conducive to a balanced and stable mining of qualified ore volume; conducive to ore varieties with the quality and, to maintain and improve The quality of ore products is conducive to maximizing ore recovery, reducing depletion losses, increasing recovery rates and making full use of mineral resources. More importantly, the mining sections are mostly concentrated in the pit bottom of the stope and are stripped of rock from the top and surrounding areas Time and space control.