PLANT FOR MANUFACTURING OF MELTED IRON BY MEANS OF INJECTION OF FINE-DISPERSED CARBON-BEARING MATERIAL INTO GAS-PRODUCING MELTING FURNACE AND MANUFACTURING METHOD OF MELTED IRON BY USING OF THIS PLANT

摘要

FIELD: metallurgy.;SUBSTANCE: invention concerns plant for manufacturing of melted iron by means of injection of fine-dispersed carbon-bearing materials into gas-producing melting furnace and method of melted iron by means of using of such plant, providing reduction of fuel consumption, receiving of reducing gas, allowing improved reducing capacity, more efficiently to use coal combustion heat. Method provides mixtures reduction, containing iron ore, in reducing reactor, charging of lump carbon-bearing material into domical top of gas-producing melting furnace and formation of packed coal bed, injection of oxygen and fine-dispersed carbon-bearing material into coal layer through the lance, mounted in gas-producing melting furnace, connected to reducing reactor, and manufacturing of melted iron, and feeding of reducing gas, containing of volatile matters contented as in lump carbon-bearing material, as and in fine-dispersed carbon-bearing material, from melting furnace into reducing reactor.;EFFECT: reduction of fuel consumption, receiving of reducing gas, allowing improved reducing capacity, more effective usage of coal combustion heat.;46 cl, 10 dwg, 5 tbl, 4 ex