Based on practical production data of steel ZG06Cr13Ni4Mo refining by 40 t VOD at Heavy-Duty Machinery Co

Ansteel

and according to conservation of energy and mass and principle of thermodynamics

a process model for steelmaking stainless steel with VOD has been established by using analysis method of system engineering and analyzing on VOD refining process with four level of operation

chemical reaction

metallurgy and thermo-chemical computation. The process model includes metallurgical model and thermal model

with input of variables including charging amount

ingredient and temperature of each material

the predicted data of output including yield and ingredient of each material can be obtained conveniently. Results of VOD production show that the VOD refining oxygen demand

end analysis and temperature of liquid can be predicted by the process model

its relative error is less than 5%.