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2011-Sustainable Industrial Processing Summit
|Flogen Star OUTREACH
|2291-1227 (Metals and Materials Processing in a Clean Environment Series)
The paper begins with a classification of the functional and constructive variants for the EAF’s charge preheating plants. The classification’s most important criteria is the proceeding’s technical-economical efficiency.The original optimisation mathematical model of the electric arc furnace’s charge preheating process mainly takes into considers 2 thermo-technological aspects: the heat transfer between fluids and particles and the heat transfer between the fizz layer and an exchange surface.On the basis of the energetically balance at the gaseous environment level, the conductive transfer model is also analysed through the finished elements method.The mathematical model’s results are presented as the analysis and quantification of the thermo gradients obtained during the charge preheating process. These thermo gradients are determined for various temporal moments and for different capacities of the electric arc furnace.