引流介质充填强化旋流-静态浮选过程的研究-《郑州大学学报(工学版)》

文章信息/Info

Title:: Research of Guiding Fluid Packed Media Enhanced Cyclone-static Flotation Process

Author(s):: ZHANG Min1; 2; SHEN Jia-hua1; LIU Dong-yun1; 1.College of Resources and Metallurgy , Guangxi University , Nanning 530004 , China; 2.Guangxi Experiment Centre of Scienceand Technology ，Naning 530004 , China

Keywords:: flotation column; mineral separation ; guiding fluid packed media ; cyclone flow

摘要:: 介质充填可有效改善浮选环境.传统筛板仅是部分抑制旋流,填料充填易堵塞且严重影响浮选处理量,结合筛板与填料优势,提出引流介质充填旋流–静态微泡浮选柱,以解决强旋流与静态浮选之间的矛盾.引流介质充填在旋流分选和柱浮选之间,在稳定静态环境情况下,又引导上移涡旋(负效应)成为平稳上升流并促使易浮矿物泡沫快速上浮(正效应),使精选泡沫层更厚、更稳定.结果表明,在原矿品位基本相同情况下,引流介质混合充填比筛板充填可以使精矿品位平均提高了1.88% ,回收率提高了1.63% .

Abstract:: The medium filling can improve the flotation environment effectively. The traditional sieve trays andfillings could only partially inhibit the cyclone flow and usually generate pulp jam. So we put forward the guid-ing fluid packed media to solve the contradiction of strong cyclonic flow and static separation in the cyclone-static microbubble flotation column. guiding fluid packed media is filled between the cyclone separation andcolumn flotation. while stabling static flotation environment,the upward scroll ( negative effect ) is guided andbecome stable upwelling,and the easy floating mineral is rapidly rised ( positive effect ),and make productconcentrate layer more thicker,more stable./ Based on the test data,it was found that the sieve packing hasthe potential to yield a product of approximately 25.83% copper concentration with 91.78% recovery from afeed concentration of approximately 0.727% . If mixed packing was used,the product concentration could befurther increased to 27.60% from a feed of approximately 0.739% concentration with 93.38% recovery.