矿产保护与利用Issue(5)：58-63,6.DOI:10.13779/j.cnki.issn1001-0076.2017.05.012
搅拌流场中微细粒赤铁矿絮凝动力学研究
Study on Flocculation Kinetics of Fine Hematite in Stirring Flow Field
摘要
Abstract
The influence of stirring speed and stirring axial distance from the bottom on the coagula -tion kinetics was investigated in this paper .The result showed that increasing the stirring speed could improve the initial growth rate of floc , but once exceeding a certain speed , the initial growth rate constant K of floc barely changed .When the stirring speed increased from 900 r/min to 1000 r/min and 1100 r/min, the initial growth rate of floc increased from 0.0085 to 0.0123 and 0.0125, respectively .The axial distance of stirring paddle from the bottom showed some effects on the initial rate of floc .When it increased from 15 mm to 20 mm and 25 mm, the initial growth rate constant K of floc also increased from 0.0097 to 0.0121 and 0.0109, respectively .Through the amendment , the flocculation kinetic equations could describe the flocculation process in a large time span .关键词
搅拌/流场/絮凝体/絮凝动力学Key words
stirring/flow field/floc/flocculation kinetics分类
矿业与冶金引用本文复制引用
牛福生,李卓林,张晋霞..搅拌流场中微细粒赤铁矿絮凝动力学研究[J].矿产保护与利用,2017,(5):58-63,6.基金项目
国家自然科学基金资助(51474087) （51474087）
河北省高校百名优秀创新人才支持计划( BR2-214) （ BR2-214）
