Billet Hot Charging in Natsteel

by Jerry Haw Yew Hun

Publisher - NatSteel Holdings Pte Ltd

Category - General Novel

Billet hot charging is a process of charging billets direct from continuous caster to reheating furnace of rolling mill without going through a cooling phase. The concept is to avoid extreme temperature drops from the billet, which results in energy saving of reheat furnace and productivity improvement. For some reasons, billets that produced by caster are sometimes stored at billet yard without hot charging. Storing the billets allows them to cool, which means they must be reheated again to rolling temperature before entering the rolling stands. This cooling and reheating process wastes energy and is potentially avoidable. NatSteel identified an opportunity to achieve significant energy and productivity gains through infrastructure (Billet Conveying System) and process management. User interface screens from BTS (Billet Tracking System) are provided for operators to view/edit/add billet charging information, it also allows operators to monitor and track real time billet information in reheat furnace.

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