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| Physical modeling for optimization of bottom blowing argon process in a 210 t ladle |
| DONG Peng-li |
| （Technical Consulting and Publications Department，The Chinese Society for Metals，Beijing 100711，China） |
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Abstract To investigate the suitable bottom blowing process，the influence of different positions of bottom blowing hole on the mixing time and surface wave was studied. Based on the similarity principle，a physical modeling system was built for the bottom blowing argon process in a 210 t ladle. By studying the influence of different positions and angles of bottom blowing hole on the mixing time and surface wave， the optimal bottom blowing process was determined. The results show that the optimal bottom blowing hole was located at[0.60R/0.60R]and the angle was 100°. When the location of bottom blowing holes was lied in[0.40R，] the two columns interacted on each other.[0.60R]for the location of bottom blowing holes was the ideal place. The erosion of airflow on the wall was serious when the location of bottom blowing holes placed at[0.79R.]
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Received: 04 November 2015
Published: 11 July 2016
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2016, Vol. 51 
