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一、引言热风炉是高炉的主要附属设备,它为高炉冶炼提供温度高达1200℃的热风,以适应高炉精料、大风、高风温、重负荷、大喷吹量操作的需要。但是,目前鞍钢热风炉的现状困扰着热风温度的提高,高炉生产水平停留在“55018”踏步不进,利用系数(1.8t/(m~3·d))没有明显提高,焦比(550kg/tFe)难以降低,热风温度始终徘徊在900～1050℃。因此,寻求实现热风炉高温、长寿的途径,就成为炼铁、设计、筑炉工作者十分关注的课题。
I. INTRODUCTION Hot blast stove is the main auxiliary equipment of blast furnace. It provides hot blast for blast furnace smelting up to 1200 ℃ to meet the needs of blast furnace concentrate, high wind, high wind temperature, heavy load and large injection volume. However, the current situation of Ansteel hot blast stove plagued the hot air temperature increase, the blast furnace production level stays at “55018”, and the utilization factor (1.8t / (m ~ 3 · d)) does not increase obviously. The coke ratio 550kg / tFe) difficult to reduce the hot air temperature is always hovering at 900 ~ 1050 ℃. Therefore, seeking to achieve hot stove, high temperature, longevity way, it has become iron, design, construction workers are very concerned about the issue.