【摘要】 基于堆浸过程中的孔隙变形,发展了一孔隙发育模型,并建立了堆浸工艺中流动-反应-变形-传质全耦合模型控制方程组,在喷淋强度不变和常水头的的情况下,给出了方程的数值解.数值结果描述了浸出过程矿堆中溶浸液饱和度的分布、溶浸剂浓度和浸出矿石浓度的分布,拟合结果表明:有用矿物浸出百分比与浸出时间之间呈3次关系,这一关系可用来预测堆浸中的有用金属的浸出回收率.更多还原

【Abstract】 Governing equations for a fully coupled Flowing-Reaction-Deformation behavior with Mass Transfer in heap leaching process were developed. These equations were solved using an explicit finite different method under the conditions of invarable application rate and constant hydraulic head. The distributions of the degree of the saturation as well as the distributions of the concentration of the reagent and the solute was given. A cubic relationship between the mineral recovery and the leaching duration is obtained based on the numerical results. The relationship can be used to predict the recovery percentage of the valuable metal.更多还原