IRIS- the infrared-based method of slag detection during converter/EAF tapping

摘要

Optimized production and high product quality, as well as cost and time savings are significant factors in steelmaking. An efficient tapping and slag detection system is particularly important for the achievement of these goals as it assures: -Minimal slag carry-over - Reduced quantities of deoxidizing and alloying agents - Low rephosphorization - Long steel casting ladle refractory lifetime - Improved steel desulphurization - More accurate steel analyses IRIS accurately differentiates between steel and slag during tapping. In combination with an efficient slag stopper system (gate unit), slag carry-over is thus minimized and steel output increased. Moreover, the IRIS system can also be used to detect residual steel during slag dumping, thus enabling the steel to be left in the converter to enhance yield.