Residence time distribution of steel melt due to argon shrouded stream pouring in a tundish
Residence time distribution of steel melt due to argon shrouded stream pouring in a tundish
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DOI：
10.1002/srin.199905630
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发表时间：
1999-06
期刊：
影响因子：
--
通讯作者：
S. C. Koria;S. Srivastava
中科院分区：
文献类型：
--
作者：
S. C. Koria;S. Srivastava
利用微型计算机的脉冲响应技术，通过冷态模型研究了钢液在中间包内的停留时间分布，得到了盖板直径、风量和浸没深度对钢液停留时间分布的影响。结果表明，上述参数都会影响中间包出包前的液面/底流比例和体积停留时间。通过峰值时间与延迟时间的比值和平均停留时间的方差/平方分析了流型对停留时间的影响。最后，得出了不同体积分数与停留时间的关系。
The effects of shroud diameter, air rate and submergence depth on the residence time distribution of steel melt due to argon shrouded stream in a tundish are studied through a cold model by the impulse response technique using a micro-computer. All the above parameters are found to influence the proportion of surface/bottom flow and the residence times of the volumes of fluid before exiting the tundish. The effect of flow pattern on residence time is analysed in terms of the ratio peak time/delay time and the variance/square of mean residence time. Lastly, a relationship is derived between the different volume fractions and the residence time.