Patent ID: 7942949

Claim:
Method for the recovery of refractory debris materials and ladle slags and using said materials and slags as process slags in iron metallurgy production in electric arc furnaces, and the related metering to the furnace for the formation of the process slag, such method comprising the following steps: grinding and screening of said refractory debris materials until powders of controlled granulometry are obtained, breaking down the ladle slag to form a powder, storing the powder obtained from the debris materials and the ladle slag in storage sites, and said grinding and screening of refractory debris materials being carried out separately from said breaking down of said ladle slag, and injecting the powders into an electric arc furnace by automatically metering the powders obtained from the debris materials and the ladle slag into the electric arc furnace wherein the composition of the powders injected is automatically determined by a management system.