针对八流小方坯连铸T形中间包,利用钢水流动、传热、传质的三维数学模型对其控流方案进行优化设计,对比分析不同控制装置下的钢水流场、温度场和停留时间分布(RTD)特征.研究结果表明:无控流装置时,中间包内存在短路流,死区较大,流动很不均衡,近流与远流的钢水停留时间和温度都相差较大;现用控流方案消除了短路流,减小了死区,但流动均衡性基本没有得到改善;优化方案比现用方案有了进一步的改善,各流停留时间相近,温差大幅减小,流动均衡性大大改善.
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