The
energy consumption and atmospheric pollutants is analyzed The results indicate that both of that of iron and steel
industry exceed that of whole industry average level In iron and steel industry,ironmaking consumes most energy and yields most pollutants The ironmaking's net
energy consumption per ton pig iron of key iron and steel works is 704 kg,about 29 5 % of which is used for sinter and cokemaking and isn't reclaimed satisfactorily after enhancing the physical and chemical character of raw material This is one of the reasons why ironmaking system consumes so much energy Emission of particulate and SO 2 is 7 4 kg and 7 7 kg per ton iron,which makes particulate and SO 2 of ironmaking account for about 68 2 % and 73 3 % of those of iron and steel industry respectively However,because funds needed to solve this problem is too much,to shorten the process and realize clean production is the choice to make ironmaking and iron and steel industry sustainable development possible