1 前言 近年来,安钢高炉冶炼不断强化,为满足生产需要,从1996年6月23日起将日出铁次数由12次增加到了15次,即两次铁间隔时间由120min缩短到96min。在这种情况下,若遇高炉短期休风,复风速度慢,就很容易丢失铁次,影响生铁产量。为加快复风进程,经过1年多的探索,安钢在2号高炉(300m~3)上探索出了全风温快速复风的操作方 1 Foreword In recent years, Angang has continuously strengthened the blast furnace smelting. From June 23, 1996, the number of sunrise irons has been increased from 12 to 15 times. That is, the interval between two irons has been shortened from 120 minutes to 96 minutes. In this case, in case of short break blast furnace, complex wind speed is slow, it is easy to lose the iron, affecting pig iron production. In order to speed up the process of compound recovery, after more than one year of exploration, Anyang Iron and Steel Co., Ltd. has explored the operation of the all-air temperature and rapid compound air blast on the No.2 blast furnace (300m ~ 3)