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在矿物加工过程中,经常会产生一些极细的颗粒,这些难以用普通的分离技术回收,因而在工厂中同废水一起被废弃。现在发展了一种方法,使细颗粒悬浮液流过一个旋转的圆管,以便连续回收这些非常细的颗粒。颗粒轨迹的理论分析表明,分离效率随管子转速和直径、颗粒直径和密度的增加而增加。用粒度范围为2—10微米的水力旋流器溢流进行实验,当管子转速为3500转/分时,达到60—70%的分离效率。
In mineral processing, very fine particles are often produced, which are difficult to recover with ordinary separation techniques and are therefore disposed of with the waste water in the factory. A method has now been developed for flowing a fine particle suspension through a rotating tube for the continuous recovery of these very fine particles. The theoretical analysis of particle trajectories shows that the separation efficiency increases with the increase of tube rotational speed and diameter, particle diameter and density. Experiments were carried out using a hydrocyclone overflow with a particle size in the range of 2-10 microns, achieving a separation efficiency of 60-70% at a tube speed of 3500 rpm.