RH喷嘴对钢液流动影响的数值模拟研究.pdf

RH喷嘴对钢液流动影响的数值模拟研究.pdf

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RH喷嘴对钢液流动影响的数值模拟研究

20 7 Vol. 20,No. 7 2010 7 China Metallurgy July 2010 RH 1, 2 2 2 孙 亮 , 赵俊花, 艾立群 ( 1. , 064404; 2. , 063009) : 300 t H , , : , ,; 150 mm ; : HMFB; ; ; :TF 769 : A :2010) Numerical Simulation on RH Nozzles Impact of Molten Steel Flow 1, 2 2 2 SUN Liang , ZHAO Junhua , AI Liqun ( 1. Shousteel Qiansteel Group Corporation, Qian an 064404, Hebei , China; 2. College of Metallurgy and Energy, Hebei Polytechnic U niversity, T angshan 063009, Hebei, China) Abstract: A threedimensional mathematical model for simulation of molten steel flow in thewhole 300 t H unit has been established. Twofluid model has been used. T he influences of process parameters such as nozzles number, in terval and row number which affecting steel flow behavior and circulation flow rate were simulated. esults show that, flow field has a little change and circulation flow rate is changed with number of nozzles, it is proper to control nozzles interval in 150 mm and in interleaving way. Key words: HMFB vacuum degassing; circulation flow rate; nozzles; numerical simulation H 3) ; H , , 4) ; , 5) ,, k H , , ,300t H , 1 2 ,, : , ! f j j Uj - ! r f j = 0 ( 1)

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