钢-渣界面液态夹杂物分离过程数值模拟

doi:10.13228/j.boyuan.issn0449-749x.20170531

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摘要为了揭示精炼钢包内固态夹杂物去除的机理，建立了描述液态夹杂物在钢-渣界面分离的数学模型，提出了计算其在钢-渣界面停留时间的表达式，讨论了影响液态夹杂物在界面处停留时间的因素。结果表明，液态夹杂物尺寸和钢-渣界面张力是影响其在钢-渣界面停留时间的主要因素，而且其在钢-渣界面处的停留时间要远大于固态夹杂物在界面处的分离时间，这是钢包内固态夹杂物更易被去除的主要原因；吹氩钢包内直径小于2 μm的液态夹杂物难以穿过钢-渣界面而停留在钢液中。

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	周业连
	邓志银
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关键词 ：分离过程, 液态夹杂物, 停留时间, 钢-渣界面, 数学模型

Abstract：In order to reveal the mechanism of solid inclusions removing more easily in ladle. A mathematical model was built to simulate the separation process of liquid inclusions at the steel-slag interface. Based on the model，an equation was proposed to calculate the residence time of liquid inclusion at the interface. Meanwhile，the separation process of liquid inclusions was discussed in detail. The results show that the size of liquid inclusions and the interfacial tension of steel-slag interface are the main important factors to influence the residence time of liquid inclusions. The residence time of liquid inclusions is much longer than that of solid inclusions，which results in easy removal of solid inclusion in a ladle. Liquid inclusions smaller than 2 μm are difficult to separate at the steel-slag interface.

收稿日期: 2017-11-02 出版日期: 2018-07-24

引用本文:

周业连，邓志银，朱苗勇. 钢-渣界面液态夹杂物分离过程数值模拟[J]. , 2018, 53(7): 31-37. ZHOU Ye-lian，，DENG Zhi-yin，ZHU Miao-yong. Numerical simulation on separation process of liquid inclusion at steel-slag interface. Iron and Steel, 2018, 53(7): 31-37.

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http://www.chinamet.cn/Jweb_gt/CN/10.13228/j.boyuan.issn0449-749x.20170531 或 http://www.chinamet.cn/Jweb_gt/CN/Y2018/V53/I7/31

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