Numerical simulation on electrolyte flow field in 156 kA drained aluminum reduction cells

来源期刊：中南大学学报(英文版)2007年第1期

论文作者：周乃君 夏小霞 王富强

文章页码：42 - 42

Key words：drained aluminum reduction cells; electrolyte; two-phase flow; numerical simulation

Abstract: Based on the commercial CFD software CFX-4.3, two-phase flow of electrolyte in 156 kA drained aluminum reduction cells with a new structure was numerically simulated by multi-fluid model and k-ε turbulence model. The results show that the electrolyte flow in the drained cells is more even than in the conventional cells. Corresponding to center point feeding, the electrolyte flow in the drained cells is more advantageous to the release of anode gas, the dissolution and diffusion of alumina, and the gradient reduction of the electrolyte density and temperature. The average velocity of the electrolyte is 8.3 cm/s, and the maximum velocity is 59.5 cm/s. The average and maximum velocities of the gas are 23.2 cm/s and 61.1 cm/s, respectively. The cathode drained slope and anode cathode distance have certain effects on the electrolyte flow.

基金信息：the National Key Fundamental Research and Development Program of China