论文部分内容阅读
矿山企业的废料可以通过合理地利用来满足建筑材料的需要。况且堆置废料需要很大的建筑与储存费用,并占用农田。随着露天矿深度的增加,运往排土场的疏松的和坚硬的岩石量增加,而较贫的矿石投入加工,使选矿的尾砂量也增加。在克里沃洛格铁矿区每年往废料场堆置达1亿米~3的剥离废石和5000万米~3的选矿尾砂。现在,在废石场和矿泥池下占据了13000公顷的土地。为了不占用可耕地,该矿区利用崩落区堆放剥离废石,1984年,约有400万米~3的采
Mine enterprise waste can be reasonably used to meet the needs of building materials. Moreover, stacking waste requires significant construction and storage costs and occupies farmland. As the depth of open-pit mines increases, the amount of loose and hard rock transported to dump sites increases, while the poorer ones are put into processing, resulting in an increase in tailings dressing. Every year, Kilivarog iron ore mines pile up 100 million m ~ 3 of peeled waste rock and 50 million m ~ 3 of ore dressing tailings to the waste yard. Now, there are 13,000 hectares under the waste rock and mud pool. In order not to occupy arable land, the mining area using the collapse area piled peel waste, in 1984, about 4000000 m ~ 3 mining