矿岩破碎块度分布分形特征对铀浸出率的影响  

Effect of Fractal Feature of the Crushing Size Distribution on Uranium Leaching Rate

作　　者：曾晟[1] 谭凯旋[1] 

机构地区：[1]南华大学核资源与核燃料工程学院,湖南衡阳421001

出　　处：《矿冶工程》2011年第1期16-18,共3页Mining and Metallurgical Engineering

基　　金：国家自然科学基金项目(50874063)

摘　　要：为了研究矿岩破碎块度分布对铀浸出率的影响,以曼得勒罗特提出的体积-尺寸分形尺度关系为基础,用筛分法研究了矿岩块度分布规律。铀的酸性浸出试验研究表明,铀金属浸出率随矿岩块度分布分维值的增加相应增大,但当分维值大于2时,铀浸出率随时间的增大比较缓慢。酸性浸出该铀矿时,矿岩破碎块度的分维值取2.0时能获得最佳的效果。In order to study the effects of the ore-rock crushing size distribution on the leaching rate of the uranium metal,the distribution law of particle size was studied with standard sieves,based on the relationship between volume and fractal scale of size put forward by Mandelbort.The experiment on acid leaching of uranium showed that the leaching rate of uranium increased with an increase in fractal dimension.However,when the fractal dimension is more than 2.0,it increased slowly.The study showed the best effect can be obtained when the fractal dimension of uranium ore-rock crushing size is equal to 2.0.

关 键 词：溶浸采矿 酸性浸出 破碎块度 分形维数 浸出率 

分 类 号：TD853[矿业工程—金属矿开采]