脉冲磁场在旋流-静态微泡浮选柱中的应用  

Application of the Pulsed Magnetic Field in the Cyclone-static Microbubble Flotation Column

作　　者：李超[1] 曹亦俊[1] 杨兴满[2] 牛国鹏[1] 刘永华[1] 

机构地区：[1]中国矿业大学 [2]沈阳化工大学

出　　处：《金属矿山》2011年第3期126-128,共3页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2008BAB31B01)

摘　　要：为降低某磁铁矿选矿厂的浮选尾矿品位,进行了新型磁浮选脱硅试验研究。结果表明,相比常规旋流-静态微泡浮选柱1次粗选、2次扫选反浮选工艺流程,浮选柱柱体附加脉冲磁场后采用1次粗选、1次扫选工艺流程,在入浮原矿性质和精矿品位基本相同的情况下,浮选时间缩短了30%,尾矿品位降低了6.35个百分点,回收率提高0.95个百分点。磁浮选方法在磁铁矿反浮选中的应用,为我国磁铁矿分选开辟了一条新的途径。In order to reduce the flotation tailings grade of a dressing plant of magnetite, experimental researches on the new magnetic flotation with silicon removal were carried out. The results showed that comparing with the conventional inverse flotation process of one-roughing and two-scavenging with cyclone-static microbubble flotation column, the process of one-roughing and one-scavenging after the flotation column was added with an additional pulsed magnetic field shortened the flotation time of 30% , reduced the tailings grade by 6.35 percent, and increased the recovery by 0.95 percent under the similar circumstances of raw ore＇ s nature and concentrate grade before the flotation. The application of magnetic flotation method in reverse flotation of magnetite opens up a new approach for the separation of magnetite in China.

关 键 词：磁铁矿 磁团聚 脉冲磁场 旋流-静态微泡浮选柱 

分 类 号：TD971.5[矿业工程—选矿]