... meter BF produce iron blast furnace blast furnace450 cubic meter-2000 cubic meter BFA blast furnace is a type of metallurgical furnace ... used for smelting to produce industrial metals, generally iron.In a blast furnace, fuel, ore, and flux (limestone) are continuously ... hot, carbon monoxide-rich combustion gases is a countercurrent exchange process.Blast furnaces are to be contrasted with air furnaces ...