IMPROVED CONTROL OF CONTINUOUS REHEATING FURNACES THROUGH OFF-LINE SIMULATION AND AUTOADAPTATION

Advantages of model-aided furnace control. Balancing process models fo r furnace control. Preparation and optimization of furnace-control thr ough off-line simulation. Off-line simulation of a furnace shutdown an d of a change of the charging temperature. Improvement of the descript ion accuracy of process models through autoadaptation. Testing of auto adaptation of two pusher-type furnaces before a hot wide strip mill, a t a walking-beam furnace as well as at two bloom reheating furnaces be fore a billet mill. Operating results of the model-aided process contr ol. Final remarks and outlook.