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Simulation analysis on the separation performance of spiral inlet hydrocyclone
International Journal of Coal Preparation and Utilization ( IF 2.1 ) Pub Date : 2021-06-07 , DOI: 10.1080/19392699.2021.1934828
Yuekan Zhang 1 , Peikun Liu 1 , Jiangbo Ge 1 , Xinghua Yang 1 , Meng Yang 1 , Lanyue Jiang 1
Affiliation  

ABSTRACT

The misplacement of coarse particles in overflow and fine particles in underflow are common problems in hydrocyclone separation. This study aimed to propose a hydrocyclone with a spiral inlet structure to improve the separation performance, and the design method of the spiral inlet is given. Based on verifying the accuracy of the VOF model and the Mixture model, the flow field characteristics and separation performance of the traditional tangential inlet hydrocyclone and the spiral inlet hydrocyclone were compared by numerical simulation method. The results showed that the spiral inlet hydrocyclone had a higher tangential speed and centrifugal strength than that of the traditional hydrocyclone. Moreover, the spiral inlet hydrocyclone had a lower turbulent kinetic energy and more stable flow field compared with the traditional tangential inlet hydrocyclone. The separation accuracy of the spiral inlet hydrocyclone is 12.24% higher than that of the tangential inlet hydrocyclone.



中文翻译:

螺旋入口水力旋流器分离性能模拟分析

摘要

溢流粗颗粒错位和底流细颗粒错位是旋流分离中常见的问题。本研究旨在提出一种具有螺旋入口结构的水力旋流器以提高分离性能,并给出螺旋入口的设计方法。在验证VOF模型和Mixture模型精度的基础上,通过数值模拟方法比较了传统切向入口旋流器和螺旋入口旋流器的流场特性和分离性能。结果表明,螺旋入口水力旋流器比传统水力旋流器具有更高的切向速度和离心强度。而且,与传统切向入口旋流器相比,螺旋入口旋流器具有更低的湍动能和更稳定的流场。螺旋入口水力旋流器的分离精度比切向入口水力旋流器高12.24%。

更新日期:2021-06-22
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