冲天炉熔化带对铁水化学成分的影响

随着生产的发展，有关冲天炉的现有熔化理论已暴露出不少弱点。例如：冲天炉熔炼耐磨Ⅱ号铸铁时发现当配料铁水含锰量为6%时，熔化初期铁水锰量竟达9～10%，用现有理论无法解释。本文在实验与理论分析的基础上提出院程序熔化带的新概念。从这一概念出发，不仅可以解释前面提出的问题，而且在生产上应用它，可以稳定铁水化学成分，提高铁水利用率，计算和降低隔焦的耗量。对生产实践及理论研究皆有一定价值。

THE EFFECT OF CUPOLA MELTING ZONE ON THE CHEMICAL COMPOSITION OF MOLTEN IRON

According to the present theory of cupola melting, the melting of metal charges begins with the batch on the very top of the coke bed, and then the melting goes on batch by batch in proper order. With the development of production, however, some of its weaknesses have been revealed For example, during the melting of No. 2 wear-resisting cast iron, it was found that if the manganese content of burden iron were 6%, the manganese content of the molten iron would reach9-10% at the beginning of melting. In this case, the present theory fails to explain it. On the basis of experimentations and theoretical analyses this article comes up with a new idea of procedural melting zone. Proceeding from this new idea we can not only explain the question mentioned above, but also stabilize the utilization ratio of molten iron, calculate and reduce the coke split consumption. So this new idea is of proper value to both production practice and theortical reseach.