Two-phase numerical simulation on the pipe flow unit of cyclonic-static micro bubble flotation column
Abstract：Two-phase,three-dimensional（3D） numerical simulation was performed to predict the mineralization efficiency of the pipe flow unit of a micro-bubble floatation column.Based on the numerical model,the length parameter of pipe flow unit was optimized,and get a coherent result with industrial test.The results show that eulerian multiphase model can be used to calculate the gas-fluid flow in pipe unit accurately.For pipe unit,the mineralization effect of different pipe lengths can be qualitatively evaluated by the value of k（turbulent kinetic energy）.The volume integral value of k grows logarithmically with the increase of L（pipe length）.Namely,the increment speed of k is fast at the beginning,and then not obvious when L is increasing.Pipe length has no effect on the maximal value of k.2.5 m is a proper length for the research object.Bauxite recovery increases 2.79% when L is extended from 0.3 m to 2.5 m in industrial test.
Keywords：cyclonic-static micro bubble flotation columnpipe flow unittwo-phase flowEulerian multiphase model
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 506-510 )