充气量和起泡剂对喷射式浮选机浮选效果的影响研究

为更有效的利用喷射式浮选机，利用自制的喷射式浮选装置，以可燃体回收率作为浮选指标，研究了浮选中充气量和起泡剂浓度对精矿产率及灰分的影响规律，结果表明：在矿浆浓度和起泡剂浓度不变的情况下，充气量存在一个值为400L/h的临界参数，小于临界值，浮选精矿产率随充气量的增大而增加，大于临界值，效果变差|起泡剂浓度临界参数为0.1mmol/L，在此浓度下，精矿产率高且灰分较低。因此，在喷射式浮选机工作过程中，控制充气量和起泡剂浓度，是调节精矿产率的重要方式。

Effect of aeration volume on flotation in jet flotation machine

For using the jet flotation machine effectually, study the effects of different aeration volumes and foaming agent parameters on flotation, using a self-made jet flotation model, The self-made spray flotation model was used to simulate the effect of flotation aeration and foaming agent concentration on concentrate yield. The results show: aeration volumes changes the shear strength of the fluid, in the case of the same pulp concentration and foaming agent concentration, The aeration amount has a critical value of 400L/h, which is less than the critical value. The flotation concentrate yield increases with the increase of the aeration amount, greater than the critical value, the effect is deteriorated; The blowing agent concentration also has a critical parameter of 0.1 mmoL-1. Therefore, controlling the amount of aeration and the concentration of the foaming agent during the operation of the jet flotation machine is an important way to adjust the concentrate yield.