Numerical analysis and experimental research on the influence of column structure on the classification performance of hydrocyclone
Feng Li, Peiyang Li, Yanchao Wang, Dongjin Guo, Huanbo Yang, Hu Han, Ruquan Liang
Abstract
A cylinder section serves as a pre-separation area for hydrocyclone classification and a necessary area for fine particles to enter an overflow. Therefore, exploring the influences of cylinder structures on the flow and particle aggregation characteristics inside hydrocyclones is important. In a parabolic cylinder structure, the highest-pressure conversion efficiency was 89.96 %. Experimental comparisons show that the quality efficiency of the parabolic column structure cyclone is 49.56 %, which is 17.63 % higher than that of the conventional feed body, alongside a reduction by 29.70 % of the −20μm particles content in the underflow and an increment by 14.77 % of the −20μm particles content in the overflow, respectively compared to the conventional hydrocyclone.