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| Water model and numerical simulation for 90 t ladle bottom argon blowing process |
| XIAO Bo1，LEI Yu-cheng1，WANG Zhong-ying2 |
（1. School of Materials Science and Engineering， Jiangsu University， Zhenjiang 212013， Jiangsu， China
2. Jinagsu Shagang Group Huaigang Special Steel Co.， Ltd.， Huaian 223002， Jiangsu， China） |
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Abstract In order to obtain the optimum gas permeable brick position at the bottom of 90 t ladle and the gas blowing model， the effect of gas permeable brick positions on the mixing time is studied using the similarity ratio 1：4 water model and the numerical simulation. The results show that the mixing time with the position of[P5]at[1/2R]cycle is shorter than that of the others under the single gas permeable brick scheme conditions. Besides， the stirring effect of the double gas permeable brick scheme with the angle of[180°]is better than that of others. By contrast， with same gas blowing rate the mixing time by using double gas permeable brick optimum scheme is similar with that by using the single gas permeable brick optimum scheme. To confirm the validity of the water model results， the effect of different bottom blowing model on the flow field of ladle are calculated using the ANSYS software. The results show that the numerical simulation is well agreement with the results of water model， and the fluid speed of hot metal in ladle when the single gas permeable brick position is[P5]at[1/2R]cycle is faster than that of others.
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Received: 09 March 2015
Published: 29 October 2015
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2015, Vol. 50 
