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| 堆浸工艺中流动-反应-变形-传质耦合过程数值模拟及应用 | |
| 引用本文： | 吴爱祥,刘金,唐玲艳.堆浸工艺中流动-反应-变形-传质耦合过程数值模拟及应用[J].应用数学和力学,2007,28(3):297-304. |
| 作者姓名： | 吴爱祥 刘金 唐玲艳 |
| 作者单位： | 1. 北京科技大学,土木与环境工程学院,北京,100083;中南大学,数学科学与计算技术学院,长沙,410075 2. 中南大学,数学科学与计算技术学院,长沙,410075 3. 国防科技大学,数学与系统科学系,长沙,410078 |
| 基金项目： | 国家(重点)基础研究发展规划资助项目;国家自然科学基金;国家创新研究群体科学基金;湖南省自然科学基金 |
| 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. |
| 关 键 词： | 堆浸 孔隙发育 饱和度 传质 数值解 |
| 文章编号： | 1000-0887（2007）03-0297-08 |
| 修稿时间： | 2006-08-09 |
Simulation of Coupled Flowing-Reaction-Deformation With Mass Transfer in Heap Leaching Processes |
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| WU Ai-xiang,LIU Jin-zhi,TANG Ling-yan.Simulation of Coupled Flowing-Reaction-Deformation With Mass Transfer in Heap Leaching Processes[J].Applied Mathematics and Mechanics,2007,28(3):297-304. | |
| Authors: | WU Ai-xiang LIU Jin-zhi TANG Ling-yan |
| Institution: | 1. School of Civil and Environment Engineering, University of Science and Technology Beijing , Beijing 100083, P. R. China; 2. School of Mathematical Sciences and Computing Technology, Central South University, Changsha 410075, P. R. China; 3. Department of Mathematics and System Science, National University of Defense Technology,Changsha 410078,P. R. China |
| 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. |
| Keywords: | heap leaching porosity evolution model saturation degree mass transfer numerical solution |
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