Analysis of splash data from oxygen steelmaking

Understanding splashing in top blowing oxygen steelmaking is important for process optimization. In this study, available data from industrial trials (including the latest IMPHOS data), hot models and cold model experiments on the size of metal droplets and its quantity in emulsion has been analysed. Critical analysis showed that sampling position has a significant effect on the percentage of metal droplets. Therefore, a comprehensive splashing study was carried out by a cold model experiment to investigate the relationship between sampling positions and analysis of splashing. Results showed that there were large variations among sampling pots in the quantity of droplets, especially when the sample pots were placed close to the bath surface. It is quite relevant to industrial studies where sampling in wrong position may over predict or under predict metal percentage in the emulsion.