Rheological behavior of paste in metal mines

作     者：Aixiang Wu Zhuen Ruan Jiandong Wang Aixiang Wu;Zhuen Ruan;Jiandong Wang

作者机构：Key Laboratory of High-Efficient Mining and Safety of Metal Mines of the Ministry of EducationUniversity of Science and Technology BeijingBeijing 100083China Shunde Graduate School of University of Science and Technology BeijingFoshan 528399China School of Civil and Resources EngineeringUniversity of Science and Technology BeijingBeijing 100083China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2022年第29卷第4期

页      面：717-726页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52130404 and 51774039) the Project funded by China Postdoctoral Science Foundation(No.2021M690011) the Guangdong Basic and Applied Basic Research Foundation(No.2021A 1515110161) the Postdoctor Research Foundation of Shunde Graduate School of University of Science and Technology Beijing(No.2021BH011) 

主　　题：paste rheology cemented paste backfill thickening mixing pipeline transportation 

摘      要：Cemented paste backfill(CPB)has been one of the best practical approaches for tailings management and underground goaf *** rheology is a science to study the flow and deformation behaviors of paste or filling body under the effects of stress,strain,temperature,and time during the CPB *** goal of studying paste rheology is to solve the engineering problems existing in four key processes;that is,paste rheology should meet the engineering demands of thickening,mixing,transportation,and ***,paste rheology is extremely complicated due to its high concentration,materials complexity,and engineering characteristics of non-stratification,nonsegregation,and *** rheological behavior of full tailings in deep thickening,rheological behavior of paste in mixing and pipeline transportation,and rheological behavior of filling body are introduced and discussed:(1)gel point,compressive yield stress,and the hindered settling function are adopted to characterize the rheological properties of full tailings in deep *** of Coe-Clevenger theory and Buscall-White theory can also analyze the thickening performance in the whole area of deep cone thickener;(2)yield stress and viscosity are consistent with the evolution trend of the relative structure coefficient of paste in mixing;(3)coupling effect of wall slip and time-temperature dependency has a significant influence on the rheological properties and pipeline transportation;(4)damage variable is introduced to the Burgers model to describe the creep damage of the filling ***,in-depth and systematic studies were still needed to establish a complete theoretical system of paste rheology in metal mines.