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| MODEL RESEARCH BASED ON LIQUID/SOLID TWO–PHANSE FLOWS IN METALLURGY STIRRED TUBULAR REACTOR |
| ZHAO Qiuyue, ZHANG Ting’an, CAO Xiaochang, LIU Yan, JIANG Xiaoli |
| Key Laboratory of Ecological Utilization of Multi–metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University, Shenyang 110819 |
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Cite this article:
ZHAO Qiuyue ZHANG Ting’an CAO Xiaochang LIU Yan JIANG Xiaoli. MODEL RESEARCH BASED ON LIQUID/SOLID TWO–PHANSE FLOWS IN METALLURGY STIRRED TUBULAR REACTOR. Acta Metall Sin, 2010, 46(8): 1004-1008.
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Abstract The computational fluid dynamics (CFD) method was used to research the velocity and concentration fields in the multiphase flow tubular stirred reactor. A mathematical model of liquid/solid two–phase flow was established and the simulated results obtained by usig this model are in better agreement with the experimental ones. The results show that the maximum velocity of solid–liquid phase flow is 1.58 m/s when the rotation speed is 150 r/min and there is no flow dead zone in the tubular stirred reactor because that turbulent flow is stregthened by the stirrig action. Radiamixture is better when the rotation speeds are 150 and 250 r/min than when the rotation speeds are 25 and 350 r/min, a proper rotation speed is need to obtain the prefered mixture. The critical impeller speeds are 35 and 38 r/min when the soiconcentration are 2% ad 75%, respectively
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Received: 04 December 2009
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| Fund: Supported by Research Fund for the Doctoral Program of Higher Education (No.20050145029) and Science and Technology Talents Fund for Excellent Youth of Liaoning Province (No.2005221012) |
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