Numerical Simulation for Solid-Liquid Two-Phase Flow in Stirred Vanadium Leaching Tank

Abstract:

The flow field in the leaching tank for the vanadium extraction in the stone coal was simulated by the Computational Fluid Dynamics (CFD) software. The flow field physical model was established by GAMBIT and the agitating area was processed by k-ε turbulence model and multiple reference frame method. The mixing effect was discussed under the two conditions: (1) Double impellers rotate in the same direction. (2) Double impellers rotate in different directions. The result shows that the mixing effect of the double impellers which rotate in different directions is better under the same condition. Its distribution of the turbulent kinetic energy is more reasonable, and it can ease the sediment at the bottom. The simulation results have certain reference value for the research of the law of the inner flow field so as to optimize its structure in the stirred reaction vessel.

• Periodical: Applied Mechanics and Materials (Volume 456)
• Pages: 314-319
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.456.314
• Online since: October 2013
• Authors: Jian Yi Kong, Zong Wu Wu, Yu Hou, Xing Dong Wang
• Keywords: Leaching Tank, Solid-Liquid Two-Phase Flow, Turbulence, Turbulent Kinetic Energy

References

[1] Yang Shou zhi. Vanadium Smelting [M]. Beijing: Metallurgical Industry Press, (2010).

[2] Wang Fu jun. Computational fluid dynamics analysis-Principle and application of CFD software[M]. Beijing: Tsinghua University Press, (2004).

[3] Zhu Rong sheng, Li Wei bing, Huang Dao jian, etal. Numerical simulation of mixing flow field in the blender[J]. Journal of Agricultural Mechanization Research, 2003, 10(4): 75-77.

[4] ndrea Cioncolini, ohn R. Thome . Carlo Lombardi Algebraic turbulence modeling in adiabatic gas–liquid annular two-phase flow [J]. International Journal of Multiphase Flow, 2009, 35: 580–596.

DOI: 10.1016/j.ijmultiphaseflow.2009.02.002

[5] .O. chieng,M.S. Onyango,A. Kumar. Mixing in a tank stirred by a rushton turbine at a low clearance[J], Chemical Engineering and processing: Process Intensifica- tion , 2008, 47(5): 842 -851.

DOI: 10.1016/j.cep.2007.01.034

[6] Khan F R, Rielly C D, Brown D A R. Angle-resolved stereo-PIV measurements dose to a down-pumping pitched-blade turbine[J]. Chem Eng Sci, 2006, 61: 2799-2806.

DOI: 10.1016/j.ces.2005.10.067

[7] Chung K H K, Bargou M, Simmons M J H. Reconstrdction of 3-D flow field inside miniature stirred vessels using a 2-D PIV technique[C]. Bologna, AIDIC. Italy: Fotograf Palermo Press, 2006: 407-414.