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选取高冶炼强度且冷却系统运行良好的武钢8号高炉为研究对象,从高炉冷却水系统参数控制的角度,统计了包括冷却水流量、进水温度和水温差在内的冷却水控制参数的变化情况及其与高炉技术指标之间的关系,分析了8号高炉冷却水参数最佳的控制范围及其开炉以来冷却壁未破损的原因。结果表明,水系统总水温差最佳控制范围为5.0~6.5℃,冷却壁水温差最佳控制范围为4.0~5.5℃,冷却壁水温差设计的最佳控制范围及其最大设计值偏低。8号高炉水温差实际控制范围与分析得到的最佳范围基本一致,且冷却壁水温差没有长时间处于连续大于极限设计值的情况,这是8号高炉开炉以来冷却水管一直未破损的重要原因。
Select the high smelting strength and the cooling system is running well for the WISCO No.8 BF for the study, from the perspective of the blast furnace cooling water system parameters, statistics, including the cooling water flow, water temperature and water temperature difference between the cooling water control parameters Situation and its relationship with blast furnace technical indicators, the optimal control range of cooling water parameters of No.8 blast furnace and the reason of the unbroken cooling stave has been analyzed. The results show that the optimal control range of water temperature difference is 5.0 ~ 6.5 ℃, and the optimal control range of cooling water temperature difference is 4.0 ~ 5.5 ℃. The optimal control range and the maximum design value of cooling water temperature difference are low. The actual range of water temperature difference of No.8 blast furnace is basically the same as that of the analysis, and the cooling water temperature difference is not continuously greater than the limit value for a long time, which is the important reason that the cooling water pipe has not been damaged since the blast furnace opened the reason.