中南大学学报(自然科学版)2011,Vol.42Issue(2):427-433,7.
基于单轴测试法的硫化矿石结块特性检测
Caking properties detection of sulfide ores based on uniaxial test
摘要
Abstract
Based on consumer oriented solid transport technology (COSST) uniaxial caking test, an improved uniaxial caking test was put forward to detect caking properties of sulfide ores. By setting contrasted groups, the experiment was made on sulfide ore samples from Dongguashan copper mine with different preliminary loads in a climatic chamber. The relationship among the caking properties, stress and time was gained, and compressive strength was also indicated by yield value of uniaxial test ring. The results show that during the same period of time, with higher preconsolidation loading, yield value of stress detected ring of uniaxial test increases, and compressive strength becomes larger, implying that caking intensity is at a higher pitch; under the same loading, with time being longer, yield locus is larger, and stress intensity is larger, displaying that caking intensity is more serious. The result is consistent with factual situation.Therefore, this improved caking test can be feasibly applied to characterize the caking properties of sulfide ores.关键词
单轴测试法/硫化矿石/结块特性/压力/检测分类
矿业与冶金引用本文复制引用
李孜军,邓艳星,陈占锋,阳富强,刘辉..基于单轴测试法的硫化矿石结块特性检测[J].中南大学学报(自然科学版),2011,42(2):427-433,7.基金项目
国家"十一五"科技支撑计划项目(2006BAK04B03) (2006BAK04B03)
国家自然科学基金资助项目(51074181) (51074181)