Green Manufacturing Operation Mode And Its Key Technologies For Iron And Steel Enterprise

Iron&steel industry is a main production of iron and steel materials manufacturing, belongs to the foundation of the national economy industry. It is also the leader of material consumption, energy consumption and pollutant emission. In this paper, by combining with the manufacturing characteristics of iron and steel enterprise and the theory and techniques of green manufacturing, steel green manufacturing operation mode is set up, and its key technologies are researched, and through them to strive to maximize six goals:Resource consumption as low as possible, environmental impact as small as possible, workers’ occupational health and safety as high as possible, iron and steel productivity as high as possible, the quality as high as possible, the cost as low as possible through coordination in the steel product whole life cycle. The main content as follows:(1) According to the present situation of lack of systemic analysis for green manufacturing operation mode for iron&steel enterprise in domestic and overseas, and based on the theory and method of green manufacturing and the operation law of iron&steel enterprise, a kind of five layer structure of green manufacturing operation mode for iron&steel enterprise is put forward, and the content of the five layers structure and the role relationship between each other is analyzed. In order to more clearly see the running conditions about the iron and steel manufacturing system decomposition and integration, a segmentation model for green iron&steel manufacturing system integrated operation based on the iron&steel product life cycle is established, and the function relationship of five layers structure of the segmentation model is analyzed.(2) In order to effectively implement green manufacturing for iron and steel enterprise, and based on the five layer structure of the green manufacturing operation mode for iron and steel enterprise, the green process planning and clean production as the key technologies for iron and steel enterprise are studied in the iron and steel product life cycle layer, in the five layer structure. And the process route, process equipment and process method and so on are deeply analyzed in the green process planning. And in order to implement clean production, the problems about the manufacturing resource consumption minimization and environmental impact minimization are also studied in steel manufacturing process.(3) According to the present situation of lack of systemic analysis for manufacturing resources optimization operation for iron and steel enterprise in domestic and overseas, a resource input/output frame about steel and iron manufacturing unit is established to analyze the material and energy resources consumption situation, and the main line of steel green manufacturing resources is built, which is based on the theory and method of green manufacturing and the operation law of iron and steel enterprise. And considering the resource transformation and consumption from the whole steel product life cycle, manufacturing resources optimization operation strategies are put forward for iron and steel enterprises.(4) Steel manufacturing process evaluation framework is established, it provides guidance to find green production plan. Through the input and output relation for steel manufacturing process, it is helpful for analyzing the corresponding listing about the resource consumption and environmental impact for steel manufacturing process. And environmental impact assessment index system for steel manufacturing process is established.