Process for melting cold iron material

Abstract From the Canadian patent

Described herein is a process for melting iron material in the production of molten iron in which cold, iron material such as scraps cold pig iron or reduced iron, is charged into a melting furnace the process comprising:, feeding a carbon-containing solid material into a precombustion vessel for primary combustion therein with supply of an oxygen-containing gas with an oxygen content corresponding to 0.4 to 0.9 of theoretical air ratio; separating combustion residues of the carbon-containing solid material from the resulting hot reducing gas; and introducing the reducing gas into the melting furnace for secondary combustion therein with supply of an oxygencontaining gas holding an oxygen …