微细粒赤铁矿絮凝体物理特性表征研究  

Characterization Study on Physical Characteristics of Fine-grained Hematite

作　　者：牛福生[1,2] 李卓林 张晋霞[1,2] 

机构地区：[1]华北理工大学矿业工程学院,河北唐山063009 [2]河北省矿业开发与安全技术重点实验室,河北唐山063009

出　　处：《矿产保护与利用》2016年第5期70-73,78,共5页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金资助(51474087);河北省高校百名优秀创新人才支持计划(BR2-214)

摘　　要：在选矿工业中,絮凝已经被广泛地应用于浮选前微细粒矿石的处理。通过絮凝作用形成絮凝体的性质与实际矿石存在较大差异,基于絮凝分形理论以及欧几里得几何理论对微细粒赤铁矿絮凝体粒径分布、沉速、密度、孔隙率、强度以及分形维数等物理特性进行了表征试验研究,为赤铁矿絮凝体的研究提供理论基础。In mineral processing industry, flocculation has been widely used in processing fine - grained ore before flotation. But there are great differences between the actual ore and the floe which forms through flocculation. In this paper, the characterization of particle size distribution, sedimentation rate,density, strength and fractal dimension of fine - grained hematite floe was investigated on the basis of flocculation fractal theory and Euclidean geometry theory to study the physical characteristics of fine - grained hematite floe. The results could provide a theoretical basis for hematite flocculation.

关 键 词：微细粒 赤铁矿 絮凝体 物理特性 

分 类 号：TD923.3[矿业工程—选矿]