检索结果-南通市图书馆

Size analysis of Slag eye formed by gas blowing in ladle refining

Journal of Iron and Steel Research(International) 2017年第3期24卷 243-250页

作者： Ning-ning Lv Liu-shun Wu Hai-chuan Wang Yuan-chi Dong Chang Su School of Metallurgical Engineering Anhui University of Technology Ma'anshan 243032 Anhui China Key Laboratory of Metallurgical Emission Reduction & Resources Recycling Ministry of Education Ma' anshan 243002 AnhuiChina

The formation of Slag eye in a gas stirred ladle was studied through cold models and industrial trials. In the cold model,water and sodium tungstate solution were employed to simulate liquid steel,and silicon oil was employed to simulate slag. The simulation results revealed that the gas flow rate and bath height had strong effects on the Slag eye size. In particular,the thickness of slag layer played a strong role in the Slag eye size. In addition,the Slag eye could not be formed when the thickness of the top layer was more than 4 cm in water-silicone oil model.Besides,the section area of vessel had a great impact on the Slag eye size. Industrial trials results showed a similar trend that the gas flow rate was very significant on the Slag eye size. The predictions of the existing models showed larger predictions deviations compared with the experimental data. Moreover,a new model without fitting parameters was developed based on force balance and mathematical derivation,and verified by the experimental data. The new model provides the prediction with small deviations by comparing with the data acquired from cold models and industrial trials.

关键词： Slag eye Cold model Industrial trial Gas blowing Ladle refining

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Flow field research on bottom argon blowing in a 40 ton ladle

引用

Baosteel Technical Research 2016年第3期10卷 21-27页

作者： ZHOU Tongjun LIU Junzhan LUO Hui Baosteel Special Steel Co. Ltd.

In order to improve argon blowing efficiency in a 40 ton ladle, numerical simulation and water simulation experiments of the bottom argon flow were performed. Relationships among the ladle mixing time, Slag eye area, different blowing flow rates, and different blowing positions （0,0.56R, 0. 62R, 0. 67R） are discussed. Results showed that the ladle mixing time decreased when the argon blowing brick distance （from bottom center of the ladle） increased, and decreased significantly when the blowing flow increased from 70 to 130 L/h. When the blowing flow increased and exceeded 130 L/h,the stirring effect tended to be stable, and there was little effect on the ladle mixing time. The Slag eye area increased as the argon brick distance increased, and was larger when the argon blow brick was near the ladle wall. Wall shear stress significantly increased as the brick distance increased and was concentrated at the slag wall near the argon flow brick;this is called the most serious erosion wall. The average wall shear increased exponentially with increasing argon blowing brick distance.

关键词： numerical simulation ladle Slag eye mixing time

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：