地转偏向力对侧顶复吹AOD炉流场影响的理论分析

Theoretical analysis on the influence of Coriolis force on the flow field of combined side and top blowing AOD converter

摘要: 基于地转偏向力的原理和120 t侧顶复吹AOD炉的构造,对AOD炉和地转偏向力的关系进行了理论分析和计算,认为地转偏向力通过对AOD炉内侧枪和顶枪气流的作用影响其流场.针对本研究的AOD炉,计算表明地转偏向力使顶枪气流从出口到熔池液面发生7.92×10^-8(°)的偏转,使侧枪气流发生1.88×10^-4(°)的偏转,说明地转偏向力对侧枪气流的影响更大.

Abstract: Based on the principle of Coriolis force and the structure of 120 t combined side and top blowing AOD converter,the relationship between Coriolis force and the AOD was analyzed and calculated theoretically. The results show that Coriolis force affected AOD's flow field by the action on the gas flow of top and side lances. As to the AOD converter in this research,it is found that the deflection angles of top gas and side gas from outlet to bath surface generated by Coriolis force were 7.92×10^-8 (°) and 1.88×10^-4 (°),respectively,showing that the influence of Coriolis force on side gas was greater than on top gas.