Optimizing Heat Schedule of Billet in Reheating Furnace

The temperature distribution of continuous casting billet in reheating furnace was measured under practical operation.The economic range of operation load for reheating furnace was determined,and the one-dimension stable-state mathematic model of billet reheating course in pusher-type reheating furnace was established.The temperature distribution of continuous casting billet in reheating furnace was calculated and analyzed based on the measured results and mathematic model.A optimum heat schedule of billet in reheating furnace was presented.The practical operation of new heat schedule show following results:the gas consume of reheating furnace reduce 5.3%,the temperature difference along the length of billet decrease 10℃,and the temperature difference along the cross section of billet is 38℃.