黄河水泥沙分离用水力旋流器分离效率的研究

在模拟黄河水泥沙分离试验装置上，改变底流口直径、进口压力、进口物料浓度以及进口物料颗粒粒度分布等参数，进行了正交对比试验．通过对不同试验条件下的溢流口悬浮液进行粒级效率分析，定性地总结出旋流器的某些结构和操作参数对分离效率的影响规律．研究结果表明，水力旋流器的分离效率与进料口颗粒分布有关；在进料口悬浮液固相颗粒粒级分布相同的情况下，进料口压力和底流口直径的变化同样对分离效率产生影响．

Investigation of separation efficiency of hydrocyclone for separation of sediments from Yellow River water

Based on the analysis of key structural and operating parameters which influence the separation efficiency of hydrocyclone, the orthogonal experiments are carried out with simulative experimental apparatus by the change of some parameters, such as underflow port diameter, inlet pressure, inlet material concentration and grain size distribution. The effects on separation efficiency were qualitatively summarized and evaluated by the analysis of gradation efficiency on suspending liquid at overflow port. The results show that the separation efficiency of hydrocyclone is related to the inlet grain size distribution. If the grain size distribution of suspending liquid at inlet is identical, the change of inlet pressure and underflow port diameter can influence the separation efficiency.