逆流浮选柱柱径及柱高的设计

论述了柱径与柱高对逆流浮选柱浮选过程的影响,提出了气阻、面积负荷的概念.通过研究矿化气泡的受力及运动,建立了表征矿浆运动的理论模型,并对模型的参数做了经验处理.给出了用矿浆流速确定柱径、用柱径和浮选柱容积来确定柱高的设计方法.通过对细粒钼铋矿物的回收实验表明,在同等实验条件下,无论是精矿品位还是回收率,按该方法设计的柱体浮选效果明显好于其他尺寸的柱体.

Diameter and height design of a countercurrent flotation column

The influences of column diameter and height on the countercurrent flotation process were discussed, and the new concepts of choked air bubbles and area load were put forward. By studying the force and movement of mineralized bubbles, a theoretical model expressing pulp movement was set up and model parameters were treated by experience. The column diameter was designed based on the pump velocity, and the column height was designed based on the column diameter and the column. Experiments were carried out to process molybdenum bismuth fine ores. The experimental results show that under the same test conditions, both the concentrate grade and the concentrate recovery of the flotation column whose size is designed based on this method are higher than those of other size flotation columns.