STEEL PLANT MODES VS. INDUSTRIAL ECOLOGICAL CHAIN——ON FUTURE DEVELOPMENT MODE OF STEEL INDUSTRY

When entering the 21st century,how to understand rightly the social economic role of steel industry,especially the function of steel manufacturing routes,is a proposition of the epoch importance. The functions of steel plants are only related to steelmaking and steel products manufacture from viewpoints of metallurgy and material science. But looking from the viewpoints of resource conservation,environment protection, ecology and recycling economy, the steel plants should be an important element of ecological industrial chain. As an economical character in future society, the production route (especially BF-BOF process) of steel plants should possess three functions:function of steel product manufacture; function of energy conversion; function of waste treatment for society. There are mainly two modes of steel plants in an environmental ecology coordinated society of recycling economy; steel plants located in ecological industrial zone near a port; steel plants located around cities.