Prediction of leaching rate in heap leaching process by grey dynamic model GDM(1,1)  

作　　者：刘金枝 吴爱祥 

机构地区：[1]College of Information Technology,Shanghai Fisheries University [2]School of Civil and Environment Engineering,University of Science and Technology Beijing

出　　处：《Applied Mathematics and Mechanics(English Edition)》2008年第4期541-548,共8页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(No.50574099);the National Science Foundation for Innovative Research Group(No.50321402);and the Natural Science Foundation of Hunan Province(No.06JJ30024)

摘　　要：The method of developing GM（1,1） model is extended on the basis of grey system theory. Conditions for the transfer function that improve smoothness of original data sequence and decrease the revert error are given. The grey dynamic model is first combined with the transfer function to predict the leaching rate in heap leaching process. The results show that high prediction accuracy can be expected by using the proposed method. This provides a new approach to realize prediction and control of the future behavior of leaching kinetics.The method of developing GM（1,1） model is extended on the basis of grey system theory. Conditions for the transfer function that improve smoothness of original data sequence and decrease the revert error are given. The grey dynamic model is first combined with the transfer function to predict the leaching rate in heap leaching process. The results show that high prediction accuracy can be expected by using the proposed method. This provides a new approach to realize prediction and control of the future behavior of leaching kinetics.

关 键 词：leaching rate PREDICTION grey theory dynamic model 

分 类 号：TD953[矿业工程—选矿]