Strategic Study of On-line Piecewise Optimizing Furnace Temperature for Rotary Reheating Furnace

The optimal heating-up curves adapted to different types of steel tubes on standard production were obtained in this work in the meth-od of off-line optimization,aimed on the lowest fuel consumption and oxide loss prerequisite heating quality of rotary reheating furnace.The control result of the rotary reheating furnace is proved well in mathematic model optimizing control system,through on-line piecewise furnace temperature optimization based on the optimal heating-up curve of steel tube.