高炉炉墙热负荷的传热学分析和研究

应用传热学理论计算了冷却器设计参数，炉衬厚度，渣铁凝固层厚度以及对流换热系数对炉墙热负荷的影响。结果表明：高炉炉墙的热负荷与冷却水管直径，冷却水管间距和镶砖的导热系数成正比，与冷却水管距冷却壁热面的距离，镶砖厚度和面积成反林；改变冷却壁的设计参数虽然使炉墙的热负荷增大，但炉墙的热面工作温度却反而降低。这有利于保护炉衬。

Application of Heat Transfer Theory in Analysis and Research for Heat Load of Blast Furnace Wall

The heat transfer theory was applied to study the influence of the design parameters of cooling stave, the lining thickness, the frozen slag layer thickness and heat conductivity on heat load of blast furnace wall. The results showed that: the heat load of furnace wall is directly proportional to the diameter of cooling pipe, distance between pipes and heat conductivity of brick, and inversely proportional to the distance between cooling pipe and cooling stave, thickness and area of brick lining; Although the heat load of furnace wall is increased by changing design parameters of cooling stave, the operational temperature on heated surface of wall is instead decreased, which is helpful to protect furnace lining.