Fluid slag skimming from steel ladies

A 1/7 scale model was constructed to physically simulate the skimming proce ss of desulphurization slag from the transfer ladle used in the steelmaking industry, l-decanol and water were used to represent the slag and the unde rlying molten steel, respectively. It was observed that the underlying liqu id surface circulation created by three impinging gas jets in glancing cont act with the bath surface would carry the slag towards the skimming mouth. The Reynolds number of the jets (I.D. 0.01 m) inclined 50 degrees to the ho rizontal was 6 100. In the same amount of time, 70% of the slag originally charged to the tank was skimmed with the assistance of the jets in comparis on to 20% when no jets were used. This approach to slag flow control was co nsidered much more effective and less generally damaging than the use of su bmerged gas injection.