氧气顶吹转炉炉衬寿命的提高,对高速度发展我国转炉炼钢工业,有着重要意义。提高炉令的最主要因素是选择和应用合理的造渣工艺,在吹炼过程中快速造好高碱度渣。本工作是应用岩相学方法,研究了鞍钢大型氧气顶吹碱性转炉炉渣的矿物相组成和形成规律,找出了高CaF_2炉渣严重侵蚀炉衬是造成炉令低的主要原因,而炉渣 Oxygen top-blown converter lining to improve the life of the high-speed development of China’s converter steelmaking industry, is of great significance. The main factor to improve the furnace order is to select and apply a reasonable slagging process to make high basicity slag quickly during the blowing process. This work is the application of petrographic methods to study the large-scale oxygen top-iron furnace in Anshan Iron and Steel Company slag phase composition of the mineral phase and found that the high CaF 2 slag eroded lining is caused by the main reason for low furnace, and slag