Remediation of mine waste dumps using sensor based sorting

该研究的目的是评估基于传感器的遗留采矿废物倾倒场的清理，这些倾倒场将酸和金属浸出到环境中。在采矿活动中，矿石被开采和加工以回收有价值的金属。废石主要有两种形式：尾矿和粗粒废石.在过去的40年里，采矿作业已经管理和修复了废物堆放场，以防止天气和金属浸出，称为酸性岩石排水。然而，从历史上看，在没有补救措施的情况下产生了废物堆放场，因此废弃的遗留矿场将酸性沃茨和金属释放到环境中。基于传感器的分选技术在过去15年中得到了发展，并且越来越多地在采矿业中得到应用。这些技术使用诸如x射线透射和x射线荧光之类的传感器来预测岩石中的硫或金属含量。在分选机中，岩石在传送带上流动或穿过传送带，传送带感测每一个岩石，然后触发致动器以偏转所选择的岩石。该研究将在选定的废石堆上测试该技术，以确定是否可以充分减少废料中的硫化物矿物含量，以减少或消除酸性岩石排水。

The objective of the research is to assess sensor based for the cleanup of legacy mining waste dumps that leachacid and metals into the environment. During the mining activity, ore is mined and processed to recovervaluable metals. There are two main forms a waste materials including tailings and coarse waste rock. For thepast 40 years mining operations have managed and remediated the waste dumps to prevent weather and metalleaching, referred to as acid rock drainage. However, historically, created waste dumps without remediationsuch that the abandoned legacy mine sites release acid waters and metals into the environment.Sensor based sorting technologies have evolved in the past 15 years and are increasingly finding application inthe mining industry. These technologies use sensors such as x-ray transmission and x-ray fluorescence topredict the sulphur or metal content of rocks. In the sorting machine, the rocks flow on a conveyor or across achute sensing each rock and then triggering an actuator to deflect selected rocks. The research will test thetechnology on a selected waste rock dump in order to determine if sulphide mineral content of the wastematerial can be reduced sufficiently to reduce or eliminate the acid rock drainage.