Abstract：A tundish hydraulic model of 1：3 was established for tundish structure optimization after the continuous casting tundish was expanded from 28 t to 40 t. The influence of tundish structure on inclusion removal was researched by analyzing the role of the tundish wall， dam and covering agent. The physical simulation and theoretical calculation results of inclusion removal show that the inclusion removal rates are 97.9%， 75.7%， 64.0%， 60.3% and 56.3% with the basic tundish structure， when the sizes of particle are －30～－50， －50～－80， －80～－100， －100～－180 and －180～－300 mesh respectively. Compared to the basic tundish structure， The inclusion removal rates of different particle sizes are increased to 98.7%， 82.3%， 66.6%， 62.9% and 57.4%， when the dam is moved inward 1 cm； The inclusion removal rates of different particle sizes are further improved to 98.9%，87.43%，75.14%，70.0%，63.4%， when the mixed oil is used to simulate the covering agent of the tundish. In the actual production process， the size and the quantity of the inclusions are decreased obviously after the tundish is modified， and the quantity of the inclusions in tundish is reduced by 53% than before.
艾立群，赵定国，马海涛，倪国龙，王书桓，冯聚和. 中间包钢液中夹杂物去除的物理模拟研究[J]. 中国钢铁期刊网, 2017, 36(1): 8-12.
AI Li-qun， ZHAO Ding-guo， MA Hai-tao， NI Guo-long， WANG Shu-huan， FENG Jv-he. Research on inclusion removal in tundish using physical simulation. Chinese Journal of Iron and Steel, 2017, 36(1): 8-12.
2017, Vol. 36 
