METHOD OF PRODUCTION OF FERROUS AND NON-FERROUS METALS Russian patent published in 2007 - IPC C21B5/00 C21C5/28 C21C5/52 C21B11/10 C22B7/00 

FIELD: metallurgy; method of production of cast iron in blast furnace with use of worn tires.

SUBSTANCE: proposed method includes charging the burden containing ground worn tires in furnace. Consumption of tires (m), kg/t of metal or matte is determined as minimum calculated by the following dependence: m=100·Δ·[S]·(1000+L_s·Ш)/(α·S_sol.res.),m=10⁴·ΔZn/(A·Zn^A), where Δ[S] and ΔZn are maximum permissible increments of sulfur in metal or matte and zinc in burden, % respectively; L_S is coefficient of distribution of sulfur between slag and metal or matte; α is amount of solid residue in tires after removal of volatile agents, %; A and Zn^A is content of ash in tires and amount of zinc in ash, % respectively; S_sol.res. is content of sulfur in solid residue of tires but for sulfur passing into volatile agents, %; Ш is specific yield of slag, kg/t of metal or matte.

EFFECT: reduced consumption of ore materials and fuel; reduced capital outlays.

4 cl