钢铁企业提升能源效率的分析与对策

Energy Efficiency Analysis and Promotion Countermeasure in Iron and Steel Enterprises

面对残酷的国内外竞争环境,寻求生存之道是所有钢铁企业所面临的共同任务。钢铁工业是高度依赖资源,且高能耗、高排放的行业,提高能源效率是中国钢铁由大转强、摆脱困境的方法之一,这也符合节能减排、绿色低碳、循环经济的国际大趋势。钢铁企业的物质流包括物料流、能源流及排放流。能源流驱动物料流在制造商品钢材的同时产生排放流(形成环境问题),可见能源流在物质流之中起着中介的重大作用。能源管理包括能源制造、能源传输与转换、合理用能,而贯穿能源管理的核心指标是能源效率,钢铁企业的能源效率是与物料流结构、企业效益高度相关的。通过对钢铁企业能源效率的分析,从强化能源流与物料流及排放流的协同、加强余热余能利用等方面提出了钢铁企业提升能源效率的具体方向与路径。

Facing the fierce competition in the domestic and abroad,it is a common task for all the steel enterpriseto search for their way to survive.Steel industry is highly dependent on resources,and high energy consumption,high emissions.Improvement of energy efficiency is one way to get rid of the predicament and makeChinese steel industry from large to strong.This also meets the international trends of the energy conservation andemission reduction,green low-carbon,circular economy.Matter flow in iron and steel enterprise includes materialflow,energy flow and emission flow.Energy flow drives the material flow in steelmaking process and brings outthe emission flow at the same time(forming environmental problems).It is clear that energy flow plays an importantintermediary role in the material flow.Energy management includes energy production,energy transfer andconversion,rational use of energy,which core indicator is energy efficiency.The energy efficiency of iron andsteel enterprise is highly related to material flow structure and enterprise benefit.In this paper,by analyzing theenergy efficiency of iron and steel enterprises,the specific direction and path of improving energy efficiency ofiron and steel enterprises are put forward,including stren