Patent ID: 8080084

Claim:
A method for recycling steelmaking dusts, which comprises: a granulating step of mixing steelmaking dusts, containing as a principal component iron and oxides thereof produced during the steelmaking in a melting furnace, with water and a powder containing carbon as a principal component and granulating the resultant mixture to provide spherical mixed granules of 3 mm to 8 mm in diameter; a water impregnating step of immersing the mixed granules in a water to allow them to be impregnated with the water just before molding is performed on the mixed granules; a solidifying step of molding the water impregnated, mixed granules under pressure within a mold assembly to provide a solid body of the steelmaking dusts, a step of transporting the solid body of the steelmaking dusts as a raw material to be charged into the melting furnace; an enhancing step of increasing the concentration of zinc in the dust during a period from acquisition of the steelmaking dusts out of the melting furnace to the solidifying step; and a dezincing step of dezincing the dusts while the zinc concentration in the dusts is increased.