The technique of audio frequency slag melting has been exploited for top and bottom combined blown converter in 150 t combined blowing converter of Tangshan Iron and Steel Company.

在唐钢150 t复吹转炉上开发出适用于百吨以上顶底复吹转炉的音频化渣技术，并根据音频曲线实现了转炉吹炼操作的量化分级管理。

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The work principle and maintenance method of bottom gas-feeding brick in top-bottom duplicate blown converter are stated, it is proposed how to make the bricks synchronized with furnace life.

论述了顶底复吹转炉底部供气砖工作原理、维护方法，提出了如何操作才能使底部供气砖与炉龄同步的理论与具体措施。

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The slag-metal mixing behavior in a top-blown converter was experimentally studied using water model, in order to examine the distribution of slag in liquid steel and vice versa.

通过对顶吹转炉二维水模型模拟实验，研究了顶吹过程中炉渣与钢液的混合情况。

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