Numerical Simulation of Particle Separation in a Hydrocyclone

Abstract:

The mixture two-phase turbulence model and theory of particle dynamics is used to simulate the high concentration water-sand two-phase flow in a hydrocyclone. The article mainly analyzes the particle volumetric concentration distribution and separative efficiency of different diameter particles in a hydrocyclone. The simulation result shows that the particle volumetric concentration distribution of different diameter particles is nonuniform in a hydrocyclone. In the annular space, the small diameter particles are affected by the shortcut flow greatly and have high concentration near the wall of the overflow pipe, while the big diameter particles are mainly distributed near the wall in a hydrocyclone. In cylinder space and cone space, different-diameter particles show a similar distribution, the smaller-diameter particles mainly in inner vortex and the larger-diameter particles in outer vortex.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 1786-1789
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.1786
• Online since: January 2015
• Authors: Ji Jian Hong*, Ding Yu Xi, Wang Xue Jiao
• Keywords: Hydrocyclone, Mixture Two-Phase Turbulence Model, Numerical Simulation, Particle Separation

References

[1] HwangKuoJen,  HwangYaWen, YoshidaHideto. Design of novel hydrocyclone for improving fine particle separation using computational fluid dynamics. Chemical Engineering Science, v 85, pp.62-68, January14 , (2013).

DOI: 10.1016/j.ces.2011.12.046

[2] Zhu Guofeng, Jong-Leng Liow. Computational study of the flow characteristics and separation efficiency in a mini-hydrocyclone. Chemical Engineering Research and Design, v 90, n 12, pp.2135-2147, December, (2012).

DOI: 10.1016/j.cherd.2012.05.020

[3] Jose A Dilgadillo. Exploration of hydrocyclone designs using computational fluid dynamics. Int. J. Miner. Process , 84, pp.252-261, (2007).

[4] SaidiMaysam , MaddahianReza, FarhaniehBijan.  Numerical investigation of cone angle effect on the flow field and separation efficiency of deoiling hydrocyclones. Heat and Mass Transfer/Waerme- und Stoffuebertragung, v 49, n2, pp.247-260, February, (2013).

DOI: 10.1007/s00231-012-1085-8

[5] ZhangYuekan , LiuPeikun, XiaoLinjing.  Numerical simulation of a hydrocyclone with different diameters of vortex finder. Energy Education Science and Technology Part A: Energy Science and Research, v 32, n 4, pp.2705-2712, (2014).

[6] B. Wang, A.B. Yu. Numerical study of particle–fluid flow in a hydrocyclone. Ind. Eng. Chem. Res, 2007, 46, pp.4695-4705.

DOI: 10.1021/ie061625u

[7] S.M. Mousavian, A. FNajafi. Numerical simulation of gas-liquid-solid flows in a hydrocyclone separator. Arch Appl Mech, 2009, 79, pp.395-400.

DOI: 10.1007/s00419-008-0237-2

[8] Chen Jingren. Fluid mechanics and heat transfer. Beijing: National Defense Industry Press, (1984).

[9] M. Narasimha. CFD modelling of hydrocyclone prediction of cut size. Int. J. Miner. Pross, 2005, 23, pp.53-68.