鞍钢5.1×4.8×3.3米炉底中心供热型换热式均热炉,于1958年安装了下部烧咀并采用液体出渣,在很大的程度上改善了这种均热炉的温度均匀性,从而改善了炉子的工作。据最近标定,可缩短加热时间1.6小时,提高加热能力17%,热效率大致不变。下部烧咀采用高压喷射式烧咀,安装于炉膛下部四角,相对喷射。经多年使用表明,它在结构上还有以下主要缺点,急待改进:(1)采用冷空气,影响热效率的提高;(2)使用单独的高压煤气系统,但并没有安装单独的煤气计量 Anshan Iron and Steel 5.1 × 4.8 × 3.3 meters hearth heat exchange heating furnace, in 1958 installed the lower burner and the use of liquid slag, to a large extent, improve the uniformity of the soaking furnace temperature Sex, thus improving the work of the stove. According to the recent calibration, can shorten the heating time of 1.6 hours, increase the heating capacity of 17%, thermal efficiency is generally unchanged. The lower burned nozzle using high-pressure jet-burning Tsui, installed in the lower four corners of the furnace, the relative injection. After years of use, it has been shown that it has the following major disadvantages in structure and is in urgent need of improvement: (1) the use of cold air affects the improvement of thermal efficiency; (2) the use of a separate high-pressure gas system but does not have a separate gas metering