浮选机性能参数对铝土矿反浮选指标影响的试验研究  

Influence of Performance Parameters of Flotation Machine on Reverse Flotation of Bauxite Ores

作　　者：喻明军[1] 王毓华[1] 周瑜林[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《矿冶工程》2010年第3期46-48,共3页Mining and Metallurgical Engineering

基　　金：国家"973"重点基础研究发展规划项目(2005CB23701)

摘　　要：采用改进的实验室型XFD-63浮选机,对河南某铝土矿进行了反浮选试验,考察了浮选机充气量、转速和浮选槽深度等性能参数对反浮选指标的影响规律。试验结果表明,试验条件下,浮选机最佳充气量为200-250 L/h,最佳转速为2 000-2 200r/m in,浮选槽深度的增加有利于铝土矿的反浮选过程,槽深由131 mm增加到177 mm时,在精矿铝硅比相近的前提下,精矿A l2O3回收率由73.42%增加到77.99%。Using a modified laboratory flotation machine,XFD-63,reverse flotation experiments were carried out to treat a bauxite ore from Henan province.The influence of processing parameters such as aeration rate,rotate speed and the depth of flotation cell on flotation behavior were investigated.The results show that the best aeration rate is between 200～250 L/h,the optimal rotate speed is between 2 000～2 200 r/min,and,the increase of cell depth can benefit the reverse flotation of bauxite ore,as,when the cell depth was increased from 131 mm to 177 mm,the recovery of Al2O3 in the concentrate can be improved from 73.42% to 77.99%,while similar concentrate grade can be retained.

关 键 词：浮选机 性能参数 铝土矿 反浮选 

分 类 号：TD456[矿业工程—矿山机电]