【作者】 钟良才； 史迪； 王海； 陈伯瑜； 汪灿荣； 朱英雄；

【Author】 Zhong Liangcai1 Shi Di1 Wang Hai1 Chen Boyu2 Wang Canrong2 Zhu Yingxiong1 (1.Institute of Ferrous Metallurgy,Northeastern University,Shenyang 110004,China;2. Steelmaking Works,Fujian Sangang Group Co.,Sanming 365000,Fujian,China)

【机构】 东北大学材料与冶金学院； 福建三钢炼钢厂；

【摘要】 采用数学模拟的方法,研究了7流中间包采用不同的控流装置的钢液流动。研究结果表明,原设计的中间包结构,冲击区小,钢水流速大。存在短路流现象,第3、4流的停留时间短。钢水流出冲击区后,先沿中间包下部流动,后流动到液面。对于改进的中间包结构,冲击区钢水流速降低,钢水流出冲击区后,钢水先沿液面流动,然后向下流动到各流水口,钢水在中间包的停留时间增加。更多还原

【Abstract】 Fluid flowing of molten steel in a 7-strand continuous casting tundish with different configurations was investigated with mathematical simulation method.The investigation results showed that the velocity of liquid steel in pouring zone was large due to the small pouring zone and the minimum residence time of the third and fourth strands was short due to the short circle flow phenomena,in the former tundish configuration.Liquid steel,after it leaved from the pouring zone,flowed first along the tundish bottom,then the liquid surface.For the improved configuration,the flowing velocity of molten steel became small,and after it departed from the pouring zone,liquid steel flowed first along the liquid surface,then the bottom and to the outlets.As a result,the residence time for molten steel in the tundish was increased.更多还原