【作者】 金杰； 钱宏智； 张家泉； 樊精彪； 兰岳光； 王玉昌； 麻晓光； 赵殿清；

【Author】 Jin Jie Qian Hongzhi Zhang Jiaquan (University of Science and Technology Beijing,Beijing 100083) Fan Jingbiao Lan Yueguang Wang Yuchang Ma Xiaoguang Zhao Dianqing (Baotou Iron & Steel(Group) Co.,LTD.Baotou 014010)

【机构】 北京科技大学； 包头钢铁(集团)有限责任公司；

【摘要】 运用数值模拟方法,研究了包钢五号大方坯连铸机六流中间包在设置挡墙和坝前后钢液流动行为的变化。计算获得的各流钢液停留时间分布曲线表明,合理地设置控流装置后,中包内各流钢液停留时间增加了两分钟左右, 短路流大大减少,钢液混合更充分,死区比例下降17%；温度计算表明,设置控流装置后,各流钢液温度差异明显缩小。更多还原

【Abstract】 The molten steel behaviors in a six-strand bloom tundish with improved flow control structure has been analyzed with numerical methods by the use of Fluent code.The RTD curves have been calculated for each strand of the tundish.It is shown that with the installation of proper flow control devices,the flow pattern in the tundish has been modified and the mixing effect of the molten steel is improved,which lead to a more homogeneous mixture in the melt and it’s temperature.Meanwhile the residual time of the molten steel is increased by two minutes on average,which means that the inclusions will have more time to float up and be caught by the top flux.更多还原