摘要
大型露天钼矿开采中,需排弃大量废石。排土场占地面积大,废石的运输和排放费用高。影响排土场设计的主要因素有:排土场场址、排土方式、排土场堆置高度等。排土场场址选择的原则是:排土场总容积应与总剥离量相适应;排土场宜选择在露天采场附近的沟谷、洼地;排土场宜靠近露天采场,使废石的运距最短,运费最省;排土场宜选择在矿区最小风频上风向,减少扬尘污染;排土场应保持良好状态,保证作业安全。行政区划对排土场场址选择有影响。大型露天钼矿常用的排土方式是汽车运输、推土机配合排土和汽车—胶带联合运输、排土机配合排土。低品位矿石堆置时应考虑回采时采装方便,避免形成堰塞湖。排土场和尾矿库共同堆置时,宜将尾矿库布置在排土场上游。
In large-scale open-pit molybdenum mining, large amounts of waste rock need to be discharged. The dumping site covers a large area; the costs of transportation and discharge of waste rock are high. The main factors affecting dump design are： dump site, dumping method, and stacking height.The principle of site selection is： The total volume of dumping sites should be compatible with the total stripping volume; Dumps should be selected in the valleys and depressions near the open pit; The dump site should be close to the open pit, so that the distance of transportation is the shortest and the freight is the lowest; Dumps should be kept in good condition to ensure operation safety; Administrative divisions have an impact on the selection of dump sites.Automobile transportation is a commonly used method of dumping, bulldozer coordinated, and Truck-Belt combine transported.In stacking of low-grade ore, the ease of mining and loading should be considered, to avoid the formation of a barrier lake. The tailings should be placed upstream of the dumping site when the dumping site and the tailings are stacked together.
作者
费慧
FEI Hui(Chinaleo CINF Engineering Co.,Ltd.,Changsha 410007,Hu＇nan,China)
出处
《铜业工程》
CAS
2018年第3期62-65,共4页
Copper Engineering
关键词
露天钼矿
排土场
场址选择
排土方式
堆置高度
open-pit molybdenum mine
dumping site
site selection
dumping method
stacking height
