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对某钢厂180 t RH真空精炼装置浸渍管结构改造并增加底吹氩气功能,通过数值方法对新型侧底复吹真空精炼装置内气液两相循环流动进行了模拟,并与实验数据进行了比较。结果表明:数值模拟所得到循环流量值与物理模拟所得到的实验数据有较好的一致性;侧吹0.8 m~3/h、底吹0.6 m~3/h时,循环流量达到最大数值0.227 m~3/h,新型结构用较小的吹氩流量即可达到传统RH的循环精炼效率,具有重要的应用前景。
The structure of the immersion tube of a 180 t RH vacuum refining unit in a steel mill was modified and the function of bottom blown argon was increased. The gas-liquid two-phase circulating flow in the new side-blown vacuum refining unit was numerically simulated and compared with the experimental data A The results show that the values of the circulating flow obtained by the numerical simulation are in good agreement with the experimental data obtained from the physical simulation. When the side blowing is 0.8 m ~ 3 / h and the bottom blowing is 0.6 m ~ 3 / h, the circulating flow reaches the maximum value of 0.227 m ~ 3 / h, the new structure with a smaller argon flow rate can reach the traditional RH cycle refining efficiency, has important application prospects.