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建立了ROKOP高效连铸坯的凝固传热数学模型。提出二冷区总有效喷淋系数E与各段有效喷淋系数Ei、水量Qi和二冷段总水量Q的关系式E =Σ(EiQi) /Q ,二冷段有效比水量Bv与二冷段比水量B的关系为Bv =BE。应用该模型进行仿真计算 ,获得涟钢 6流ROKOP连铸机二冷区各段水量的控制方法。经生产实践证明 ,在生产 15 0mm× 15 0mm铸坯的拉速达到 3.8～ 4 .0m/min时自动控制的二次冷却制度满足工业连铸要求 ,得到优质铸坯。
The mathematical model of solidification and heat transfer of ROKOP high-efficiency slab was established. The relationship between the total effective sprinkling coefficient E of the second cooling zone and the effective sprinkling coefficient Ei, the amount of water Qi and the total amount Q of water in the second cooling zone is presented. E = Σ (EiQi) / Q, The relationship between the segments and the amount of water B is Bv = BE. The simulation calculation is carried out by using the model to obtain the control method for each section of water in the second cooling zone of 6-flow ROKOP caster in Lianyuan Iron and Steel. The production practice has proved that in the production of 15 0mm × 150mm casting speed of 3.8 ~ 4.0m / min when the automatic control of secondary cooling system to meet the requirements of industrial continuous casting, to obtain high-quality slab.