论文部分内容阅读
以某厂190mm×1700mm连铸结晶器为研究对象,采用商业软件Fluent,应用VOF模型对结晶器内钢/渣界面波动进行数值模拟,主要研究拉速、浸入式水口倾角及水口插入深度等工艺参数对结晶器内自由表面液面波动的影响,并用水模实验进行了验证.结果表明,随着拉速的增大,浸入式水口倾角向下减小及水口插入深度的减小,液面波动明显增大,靠近窄面附近的波动较为显著,液渣层覆盖不均匀.当插入深度在140~180mm之间变化时,钢/渣界面波动幅度不大.
Taking a 190mm × 1700mm continuous casting mold of a factory as the research object, the commercial software Fluent was used to simulate the steel / slag interface fluctuation in the mold by using the VOF model. The main research processes were casting speed, immersion nozzle inclination and nozzle insertion depth The influence of parameters on the fluctuation of free surface liquid level in the mold was tested and verified by water model experiment.The results showed that with the increase of casting speed, the dip angle of immersion nozzle decreased and the insertion depth of nozzle reduced, The fluctuation is obviously increased, the fluctuation near the narrow surface is more obvious, and the liquid slag layer is covered unevenly.When the insertion depth changes between 140 ~ 180mm, the fluctuation range of steel / slag interface is not big.