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武钢四高炉开炉初期原料供应、设备结构有不少问题,生产水平很低。1973年因炉身砖衬和冷却设备严重损坏准备停炉检修。为研究炉底侵蚀状况以决定大修或中修,作者用数学物理方法,以实测数据为边界条件,导出了碳砖炉底的热侵蚀计算式。计算结果与炉壳温度分布、残铁量等方法推算的相近。由于炉底侵蚀仅1米,决定四高炉中修。四高炉中修至今炉底状况良好,可认为推算是可靠的。作者还推导了碳砖炉缸的热侵蚀计算式。用此式计算的一高炉炉缸侵蚀尺寸与大修时的观测值也一致。
WISCO furnace blast furnace four initial supply of raw materials, equipment structure has many problems, the production level is very low. In 1973 due to the furnace lining and cooling equipment, serious damage to the furnace prepared to shut down overhaul. In order to study the condition of bottom erosion and decide overhaul or medium repair, the authors derive the calculation formula of thermal erosion of the bottom of carbon brick by the mathematical physics method and the measured data as the boundary conditions. The calculation results are similar to those calculated by the furnace shell temperature distribution and residual iron content. As the bottom of the erosion of only 1 meter, decided to repair four blast furnace. Four furnace repair in the furnace bottom is in good condition, can be considered projections are reliable. The author also deduces the equation of thermal erosion of carbon brick hearth. Calculated using this formula a blast furnace hearth erosion size and overhaul the same observations.