提高风温是增加生铁产量、降低能耗的有效措施。鞍钢生产实践表明:普通的内燃式热风炉,当风温达到1100℃以上时就容易产生火井倒塌、掉砖,甚至短路,寿命大为缩短。九高炉1965年平均风温1204℃,月平均最高1257℃,开炉不到一年就掉砖严重,由于掉砖造成燃烧闸板或 Increasing the air temperature is an effective measure to increase pig iron production and reduce energy consumption. Anshan Iron and Steel production practice shows that: ordinary internal combustion hot stove, when the wind temperature reaches 1100 ℃ or more prone to collapse of the fire shaft, brick out, or even short-circuit, greatly shorten the life expectancy. Nine blast furnace 1965, the average temperature of 1204 ℃, the average monthly maximum of 1257 ℃, less than a year out of the brick on the brick serious, as a result of the bricks off the brick or