Patent ID: 6053962
Filing Date: 2000-04-25
Classification: C21B,C21C,F27B,Y02P

Abstract:
A scrap melting process which comprises charging a shaft furnace with ferrous scrap and coke, and injecting pulverized coal, waste plastics and oxygen into the furnace through a burner at the tuyere, with injection of pulverized coal and waste plastics from the center of the burner and injection of oxygen from its periphery, so as to mix together pulverized coal, waste plastics, and oxygen, thereby achieving rapid combustion of pulverized coal and at least part of waste plastics in the combustion zone that forms in front of the tuyere, thereby causing the sensible heat of the combustion gas to melt the scrap and produce molten iron therefrom and recovering the combustion gas as a fuel gas without intentional secondary combustion in the furnace.