BURDEN FOR MELTING CAST IRON Russian patent published in 2000 - IPC

FIELD: ferrous metallurgy, namely melting cast iron in blast furnaces. SUBSTANCE: burden for melting cast iron includes solid fuel, iron ore components, fluxing components, metal additives and iron-containing metallurgical wastes; using as solid fuel coke and coal in relation 4-6. Mass relation of metal additives and iron ore components in burden consists 0.35-0.55; using as metal additives steel and cast iron chips taken in relation 0.3-0.7; using scale as iron containing metallurgical waste, scale content in burden depends upon coal content of burden, mass relation of coal and scale in burden consists 0.9-1.3. EFFECT: minimized coke consumption and cost price of cast iron due to strict relations of above mentioned components in burden. 1 ex