|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Numerical simulation of gas-liquid flow mixing effect in bottom-blown bath
||Dongbo Li, Peng Li, Xin Yao, Cheng Liu, Zeshang Dong
|On-Site Speaker (Planned)
In order to clarify the stirring mechanism of bottom-blown bath, VOF multiphase flow model was used to simulate the gas-liquid two-phase flow process, and the simulation results were verified by water model test, and the influence of gas-liquid mixed melt process was analyzed. The results show that the separation effect of slag gold is better when the injection angle is between 15°~22.5°. When the gas velocity is 70 m/s, the gas stirring radius is 1 m, so the distance between the oxygen lance and the furnace wall is 1~1.5 m, which can ensure that the furnace wall is not washed by excessive melt.The optimum spacing of oxygen lance is controlled at 2~3m, the distribution of oxygen lance is more reasonable, the effect of pool agitation is better, and the splash caused by excessive pool agitation is prevented.