材料期刊网

为研究钢包底吹孔布置对钢液混匀时间及液面波动的影响，确定钢包最优底吹工艺，以某厂210 t钢包为原型，根据相似原理建立钢包物理模型，模拟钢包底吹氩工艺。通过研究不同底吹孔位置与角度对混匀时间和液面波动的影响，确定钢包最优底吹工艺。结果表明，最优底吹位置为底吹孔位于距钢包底部圆心距离为0.60R/0.60R，夹角为100°。底吹孔在0.40R的位置，两气柱会相互影响；底吹孔在0.60R的位置是较理想的位置；底吹孔在0.79R的位置，气流对包壁冲刷严重。

To investigate the suitable bottom blowing process,the influence of different positions of bottom blowing hole on the mixing time and surface wave was studied. Based on the similarity principle,a physical modeling system was built for the bottom blowing argon process in a 210 t ladle. By studying the influence of different positions and an-gles of bottom blowing hole on the mixing time and surface wave,the optimal bottom blowing process was determined. The results show that the optimal bottom blowing hole was located at 0.60R/0.60R and the angle was 100°. When the lo-cation of bottom blowing holes was lied in 0.40R,the two columns interacted on each other. 0.60R for the location of bottom blowing holes was the ideal place. The erosion of airflow on the wall was serious when the location of bottom blowing holes placed at 0.79R.