Numerical simulation of a self-absorbing microbubble generator for a cyclonic-static microbubble flotation column

作     者：LI Lin LIU Jiongtian WANG Lijun YU Hesheng 

作者机构：School of Chemical Engineering and Technology China University of Mining & Technology Xuzhou 221116 China School of Mechanical and Electrical Engineering China University of Mining & Technology Xuzhou 221116 China Schulich School of Engineering University of Calgary Calgary T2N1N4 Canada 

出 版 物：《Mining Science and Technology》 (矿业科学技术（英文版）)

年 卷 期：2010年第20卷第1期

页      面：88-92页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：Financial supports for this work provided by the National High Technology Research and Development Program of China (No.2008BAB31B02) is gratefully acknowledged 

主　　题：self-absorbing microbubble generator flotation column two-phase flow numerical simulation 

摘      要：The Cyclonic-Static Microbubble Flotation Column (FCSMC) is currently a widely used, novel type of flotation device. The self-absorbing microbubble generator is the core component of this device. The structure of the microbubble generator directly influences flotation column performance by affecting bubble size and distribution as well as gas holdup in the column. However, the complicated flow inside the generator results in high R&D costs and difficulty in testing. Thus, the CFD software, FLUENT, was used to simulate the gas-liquid two-phase flow inside a self-absorbing microbubble generator. The effect of area ratio, a key structural parameter, was studied in detail. Critical flow-field parameters including velocity, turbulent kinetic energy, minimum static pressure and gas holdup were obtained. The simulation results demonstrate that the optimum area ratio is 3.