在综合考虑铁水包备包生产及高炉配罐制度等因素的基础上，建立了多功能铁水包周转数计算模型，即铁水包周转数由工艺要求数、备包数及高炉配罐富裕数组成. 依据模型计算出重钢新区两座高炉?两座转炉模式下铁水包周转数为16个. 结果表明，减少铁水包周转数的关键在于减少重包和空包的“缓冲容量”，为此需优化高炉配罐制度及连浇炉数. 单一优化配罐制度及连浇炉数均可减少2个铁水包，联合优化配罐制度和连浇炉数可减少4个铁水包.
Calculation model for turnover number of multifunctional hot metal ladle was proposed based on comprehensive consideration of ladle preparation and ladle allocation method for blast furnace. Ladle number was composed of three parts which were loaded ladle number for processing needs, required preparation and unloaded ladle number for excessive allocated for blast furnace. Ladle turnover number in 2 blast furnace?2 basic oxygen furnace production mode in Chongqing steel plant was obtained as 16 by applying the model. The results showed that decreasing the buffer capacity of loaded and unloaded ladle should be a crucial step to reduce the ladle turnover number. Therefore optimizing ladle allocation method and continuous casting heats were supposed to be adopted as feasible measures. Individual optimization of ladle allocation method and casting heats can both contribute to the decrease of 2 in ladle number. In addition, ladle number can be reduced by 4 with joint optimization according to the model.
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