Physical Modeling Evaluation on Refining Effects of Ladle with Different Purging Plug Designs,Steel Research International

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Physical Modeling Evaluation on Refining Effects of Ladle with Different Purging Plug Designs
Steel Research International ( IF 1.9 ) Pub Date : 2020-04-16 , DOI: 10.1002/srin.201900606
Fangguan Tan _{1,

2} , Zhu He _{1,

2} , Shengli Jin ₃ , Liping Pan _{1,

2} , Yawei Li _{1,

2} , Baokuan Li ₄

Affiliation

Circular slits are introduced in purging plugs for alleviating the stress concentration to prolong their service life. Herein, the effects of slits with different geometries on the mixing time, inclusion removal rate, and slag eye area are studied by water model method. Experimental results show that the inclusion removal rate decreases with increasing slit angle for the gas flow rate of less than 6.02 NL min⁻¹. Moreover, with slit diameter increases, the mixing time and inclusion removal rate decrease when a gas flow rate is less than 5.26 NL min⁻¹. The slag eye area increases with increasing slit diameter, and the slit angle has a positive influence on the formation of the slag eye. Finally, the optimization of the mixing time and inclusion removal rate for less consumption of stirring energy and less slag entrapment indicates that the smaller the slag eye area is, the better the refining effect is.

中文翻译：

不同吹扫塞设计的钢包精炼效果的物理模型评估

在吹扫塞中引入了圆形缝隙，以减轻应力集中，从而延长其使用寿命。在本文中，通过水模型方法研究了不同几何形状的缝隙对混合时间，夹杂物去除率和渣眼面积的影响。实验结果表明，当气体流量小于6.02 NL min ^-1时，夹杂物的去除率随缝角的增加而减小。此外，随着狭缝直径的增加，当气体流速小于5.26 NL min ^-1时，混合时间和夹杂物去除率降低。渣眼面积随狭缝直径的增加而增加，并且狭缝角度对渣眼的形成具有积极的影响。最后，优化混合时间和去除夹杂物以减少搅拌能量的消耗并减少夹渣的情况表明，渣眼面积越小，精炼效果越好。

更新日期：2020-04-16

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