硅酸盐学报2007，Vol.35Issue(10)：1382-1386,5.
SLC-S分解炉增加物料进口时气固两相流场的数值模拟
NUMERICAL SIMULATION OF GAS-SOLID FLOW IN SLC-S PRECALCINER BY ADDING A RAW MEAL INLET
摘要
Abstract
To optimize the gas-solid flow field, numerical simulations were performed with a new raw meal inlet added to the SLC-S precalciner by changing the horizontal projection angle between the two raw meal inlets. In the Euler coordinate system the gas phase is expressed with the k-ε two-equation model, while in the Lagrange coordinate system the solid phase is expressed with the discrete phase model, and the random effect of turbulence on the particle dispersion is accounted for with the discrete random walk model.The predicted gas velocity field agrees well with the model's measured results, and the calculated solid and gas residence times and the solid gas residence time ratio are consistent with the experiment data. The predicted results show that the optimal horizontal projection angle between the two raw meal inlets is larger than or equal to 135 ° , especially at 157.5 ° , within this range, not only does the raw meal disperse uniformly throughout the precalciner, but also there is a high solid residence time and solid gas residence time ratio.关键词
分解炉/气固两相流/数值模拟/k-ε模型/离散相模型/随机跟踪模型Key words
precalciner/ gas-solid flow/ numerical simulation/ k-ε model/ discrete phase model/ discrete random walk model分类
化学工程引用本文复制引用
谢峻林,梅书霞..SLC-S分解炉增加物料进口时气固两相流场的数值模拟[J].硅酸盐学报,2007,35(10):1382-1386,5.基金项目
国家"863"计划(2002AA335050) （2002AA335050）
国家自然科学基金(50276045)资助项目. （50276045）
