Robust EAF Laser Gas Analysis System-ZoloSCAN

Considerable work has been done on the development of advanced process control for the Electric Arc Furnace (EAF) steelmaking process. Historically, many control systems have been employed which rely on static heat balance calculations coupled with power input profiles to generate recipe driven control models. Steelmakers have desired to have continuous information about the gases exiting the furnace. Due to the dynamic nature of the EAF, waste gas analysis on a real time basis provides valuable data which enables the operator to better control the input of chemical energy components as well as decarburizing and slag foaming additives. However, in the absence of real time off gas analysis, predictive process control models are used because no sensor has been available which can provide accurate, reliable data for real time process feedback.