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提出了衡量钢铁生产过程中资源利用效率、环境状况和废钢充足程度的三项重要指标——铁资源效率、铁环境效率和废钢指数。以质量守恒定律为基础,建立了钢铁生产流程中铁资源效率、铁环境效率和废钢指数之间的关系式。当废钢指数一定时,流程的铁环境效率愈高,铁资源效率也愈高;且流程铁资源效率的最大值也随之确定,它不受铁环境效率的影响。结合生产实际,分析了铁资源效率和铁环境效率的关系曲线随废钢指数的增加而整体上移的原因,并指出由于受转炉炼钢工艺条件的限制,高炉-转炉流程的废钢指数不可能有较大程度地提高,且流程铁资源效率和铁环境效率也不会有很大程度地改善。要想改变这一局面,只有发展电炉流程。
Proposed three important indicators to measure the resource utilization efficiency, environmental conditions and the adequacy of scrap in the steel production process: iron resource efficiency, iron environment efficiency and scrap index. Based on the law of conservation of mass, the relationship between iron resource efficiency, iron environmental efficiency and scrap index in the steel production process is established. When the scrap index is constant, the higher the iron environment efficiency of the process, the higher the iron resource efficiency; and the maximum iron resource efficiency of the process is also determined, it is not affected by the iron efficiency of the environment. According to the actual production, the reason why iron resource efficiency and iron environment efficiency curve shifts up with the increase of scrap index is analyzed. It is pointed out that the scrap index of blast furnace - converter process can not be due to the limitation of converter steelmaking process conditions To a greater extent, and the process of iron resource efficiency and iron environment efficiency will not be greatly improved. To change this situation, only the development of electric furnace process.