Abstract
The three-dimensional multiphase flow in a large-scale seed precipitation tank stirred with multiple Intermig impellers was simulated by CFD method. The flow field, solid particles distribution and power consumption were numerically analyzed by adopting Eulerian Granular Model (GEM) and standard k-ε turbulence model. The tank was improved by lengthening the lowest impeller and adopting sloped baffles which largely promoted the solids suspension and fluid mixing. In the original tank, the maximum of relative solid concentration difference in the whole tank was less than 5% at the minimum rotational speed of 4.8r/min. Although the lowest lengthened impeller cost more power, the minimum rotational speed could be down to 3.8r/min. So in the improved tank, about 40% power could be saved to achieve the same mixing effect. The results have important meaning to industrial design and optimization.
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References
TAMBURINI A, CIPOLLINA A, MICALE G, BRUCATO A, CIOFALO M. CFD simulations of dense solid-liquid suspensions in baffled stirred tanks: prediction of solid particle distribution. Chemical Engineering Journal, 2013, 223: 875–890.
HOSSEINI S, PATEL D, EIN-MOZAFFARI F, MEHRVAR M. Study of solid-liquid mixing in agitated tanks through electrical resistance tomography. Chemical Engineering Science, 2010, 64(4): 1374–1384.
SARDESHPANDE M V, JUVEKAR V A, RANADE V V. Solid suspension in stirred tanks: UVP measurements and CFD simulations. The Canadian Journal of Chemical Engineering, 2011, 89(5): 1112–1121.
WADNERKAR D, UTIKAR R P, TADE M O, PAREEK V K. CFD simulation of solid-liquid stirred tanks. Advanced Powder Technology, 2012, 23(4): 445–453.
QIA N N, ZHANG H, ZHANG K, XU G, YANG Y P. CFD simulation of particle suspension in a stirred tank. Particuology, 2013, 11(3): 317–326.
GIDASPOW D, BEZBURUAH R, DING J. Proceedings of the 7th Engineering Foundation Conference on Fluidization, ed. O.E. Potter, D.J. Nicklin (New York: Engineering Foundation, 1992), pp. 75–82.
WANG L, ZHANG Y F, LI X G, ZHAN Y. Experimental investigation and CFD simulation of liquid-solid-solid dispersion in a stirred reactor. Chemical Engineering Science, 2010, 65(20): 5559–5572.
OCHIENG A, ONYANGO M S. Drag models, solids concentration and velocity distribution in a stirred tank. Powder Technology, 2008, 181(1):1–8.
LUO J V, ISSA R I, GOSMAN A D. Predicion of Impeller-induced flows in mixing vessels using multiple frames of reference. IChemE Symp Ser, 1994, 136:549 – 556.
ZHAO H L, ZHANG Z M, ZHANG T A, LIU Y, GU S Q, ZHANG C. Experimental and CFD studies of solid-liquid slurry tank stirred with an improved Intermig impeller. Transactions of Nonferrous Metals Society of China, 2014, 24(8): 2650–2659.
ZHAO H L, LIU Y, ZHANG T A, GU S Q, ZHANG C. Computational fluid dynamics (CFD) simulations on multiphase flow in mechanically agitated seed precipitation tank, JOM, 2014, 66(7): 1218–1226.
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© 2015 TMS (The Minerals, Metals & Materials Society)
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Zhang, G., Zhao, H., Lv, C., Liu, Y., Zhang, Ta. (2015). CFD Simulations of a Large-Scale Seed Precipitation Tank Stirred with Multiple Intermig Impellers. In: Hyland, M. (eds) Light Metals 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48248-4_12
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DOI: https://doi.org/10.1007/978-3-319-48248-4_12
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48610-9
Online ISBN: 978-3-319-48248-4
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