一、前言近几年来,为发展顶、底吹氧气(LD/OTB)转炉付出了极大努力,致使这种顶、底吹氧气转炉具有 LD/BOP 和 OBM/Q-BOP 两种转炉的优点(即这种顶、底吹氧转炉既具有LD/BOP 转炉的优点,又具有 OBM/Q-BOP 转炉的优点)。神户钢铁公司加古川厂,对LD-OTB 工艺付出了很多心血,从而得到了熔池中的成份和温度的均匀性。然而,由于过度 I. INTRODUCTION In recent years, great efforts have been made to develop LD / OTB converters, which have the advantages of both LD / BOP and OBM / Q-BOP converters (This kind of top and bottom blowing oxygen converter not only has the advantages of LD / BOP converter, but also has the advantages of OBM / Q-BOP converter). Kobe Steel Kakogawa plant, LD-OTB process to pay a lot of effort, which has been molten pool of ingredients and temperature uniformity. However, due to over