Sound Analysis of the Foaming Process During Gas Injection in Oxygen Steelmaking

<p dir="ltr">Accurate control of slag foaming in oxygen steelmaking is essential for process efficiency and safety. This thesis investigates the use of acoustics for contactless slag foam measurement through laboratory cold model experiments and plant trials. Cold model studies examine how geometry, frequency, and foam configuration influence acoustic signals when correlated with aqueous foam heights. Findings inform plant trials using identical recording hardware to monitor real-time steelmaking heats. This research enhances the understanding of acoustic signal behaviour in slag foam and its sensitivity to process parameters, offering insights into its application for steelmaking process monitoring and control.</p>