PROCESS FOR THE PRODUCTION OF PIG IRON IN A BLAST FURNACE WITH A SPECIFIC COKE FEED REDUCED BY THE USE OF GASEOUS EXCHANGE FUELS

摘要

A blast furnace process and plant are provided employing a gas mixture comprising coke oven gas and gasified fine grained to dusty fuels. The mixture is produced in a mixing chamber wherein the raw gas from the gasifier is chilled with purified cool coke oven gas. The gas mixture is separated from dust and desulfurized in a cyclone charged with burn lime dust. Then the gas mixture is fed to the blast furnace proper and enters at temperatures from about 750 DEG C. to 1000 DEG C.