Abstract:Abstract:1∶22 water model experiment and numerical simulation were used to explore the improvement and optimization of the structure of the submerged nozzle. According to the comparison of the effect of the C type nozzle and the A type nozzle on the flow field of the mold under different cast slab sections, in the water model test, the C type nozzle has an average wave height drop of 4899% and an average reduction of 194% in the impact depth. The degree of slag entrainment was reduced by an average of 8024%, and the maximum width of exposed liquid surface was decreased by an average of 6739%. In the numerical simulation test, the average maximum velocity vCmax=039m/s of the free surface with the Ctype nozzle is less than that of the Atype nozzle vAmax=023m/s, and the results of water model test are consistent with those of numerical model test. The effect of Ctype nozzle is better than Atype nozzle in stabilizing the liquid level of mould and reducing slag entrainment.
邹涛1,战东平1,张慧书2,李大亮3,韩建林3,刘西峰3. 板坯连铸结晶器水口优化数理试验研究[J]. 钢铁研究学报, 2020, 32(4): 304-310.
ZOU Tao1,ZHAN Dong-ping1,ZHANG Hui-shu2,LI Da-liang3,HAN Jian-lin3,LIU Xi-feng3. Mathematical and physical experimental study on mould nozzle optimization in slab continuous casting. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(4): 304-310.