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感应加热中间包夹杂物的运动及去除

DOI: 10.3969/j.issn.1005-3026.2014.10.017, PP. 1442-1446

Keywords: 感应加热,中间包,夹杂物,碰撞长大,电磁压力

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Abstract:

针对某钢厂双通道式感应加热中间包,建立了三维非稳态数学模型来研究感应加热中间包内夹杂物的运动行为和去除率.从力平衡原理出发,采用欧拉-拉格朗日方法分析了感应加热中间包内夹杂物的运动行为.建立了感应加热情况下夹杂物碰撞长大的数学模型,考察了夹杂物碰撞长大对其去除率的影响.结果表明,钢液流过通道受到紧箍作用,夹杂物会受电磁压力作用而向通道壁面运动,有利于夹杂物的去除;碰撞长大能够显著提高小粒径夹杂物的去除率;感应加热有助于夹杂物的去除,尤其是小粒径夹杂物.

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