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我厂自7980年以来,参照国内外高温内燃式热风炉改造的经验,对2~#高炉三座热风炉进行了技术改造。采取了生产中逐座大修改造的办法。改造后月平均风温已达到1040℃左右,较改造前提高了200℃左右,改造基本上是成功的。热风炉改造主要内容:(1) 燃烧室隔墙砌砖与大墙断开砌筑,中间留膨胀缝,并用耐高温的挠性料填充,隔墙两圈砌砖之间增设隔热层,其下部嵌入一块耐高温抗氧化钢板;(2) 采用带水平通道的五孔格子砖,缩小格孔尺寸,适当加高热风炉,蓄热面积有较大增加,(3) 燃
I plant since 7980, with reference to the experience of domestic and foreign high temperature internal combustion stove reform, 2 # blast furnace three stoves technical transformation. Take a one by one production overhaul the way. After the transformation, the average monthly temperature of wind reached about 1040 ℃, about 200 ℃ higher than that before the transformation, and the transformation was basically successful. The main contents of the hot stove reform: (1) the combustion chamber wall brick and large wall off the masonry, leaving the expansion joints in the middle, and filled with high temperature resistant flexible material, additional insulation layer between two laps brick wall, The lower part embedded in a high temperature resistant steel plate; (2) the use of horizontal channels of five-hole lattice bricks, reducing the grid hole size, appropriate increase the hot stove, heat storage area has increased greatly, (3)