摘要
从钢铁生产过程中水资源使用时的能耗角度研究了钢铁联合企业的水能关系,提出了水能强度的概念来评价企业生产过程中水资源利用的节能水平,建立了钢铁企业的水能关系模型。以中国某大型钢铁联合企业为例,计算并分析了该企业的水能关系。该企业总的水能量为55 709kW·h/h,重复用水水能量占整个钢铁企业全部水能量的82%,补水水能量占16%,排水水能量占1%;各工序中热轧工序占比最大,其次是炼铁、炼钢工序,冷轧、烧结和炼焦工序较低。该企业的吨钢水能强度为0.208kW·h/m^3,炼铁工序的水能强度最高,热轧、炼钢工序次之,烧结、冷轧和炼焦工序较低。最后,从钢铁生产过程水资源利用的角度得到节能的方向及措施。
The nexus between water and energy in iron and steel enterprise was studied from the view of energy consumption of water usage in iron and steel production.And then the concept of water energy intensity was put forward to evaluate the energy-saving level of water resources utilization in the production process of enterprises,and the water-energy nexus model of iron and steel enterprise was established.Taking a large iron and steel enterprise in China as an example,the relationship between water and energy was calculated and analyzed.The total water-energy quantity of the enterprise was 55 709 kW·h/h,the energy of the reused water consumption accounted for 82% of the total water energy of the whole steel enterprise,the energy of hydration water accounted for 16%,and the drainage water energy only accounted for 1%.Hot rolling process accounted for the largest proportion of all processes,followed by ironmaking and steelmaking,and cold rolling,sintering and coking processes were the lowest.The water-energy intensity per ton of steel was 0.208 kW·h/m^3,and the water-energy intensity of the iron-making process was the highest,followed by hot rolling and steelmaking,and the sintering,cold rolling and coking processes were the lowest.Finally,the direction and measures for energy saving were obtained from the perspective of water resources utilization in iron and steel production.
作者
仝永娟
蔡九菊
张琦
王连勇
胡绍伟
熊博文
TONG Yong-juan;CAI Jiu-ju;ZHANG Qi;WANG Lian-yong;HU Shao-wei;XIONG Bo-wen(State Environmental Protection Key Laboratory of Ecoindustry,Northeastern University,Shenyang 110819,Liaoning,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Technology Center,Angang Steel Co.,Ltd.,Anshan 114009,Liaoning,China)
出处
《中国冶金》
CAS
北大核心
2019年第11期87-92,共6页
China Metallurgy
基金
国家自然科学基金资助项目(51874095,41871212)
国家科技重大专项资助项目(2012ZX07202-001-003)
东北大学科研项目资助项目(N172504031)
关键词
钢铁企业
水能关系
耗能水量
水能量
水能强度
节能
iron and steel enterprise
water-energy nexus
energy-consuming water quantity
water-energy quantity
water-energy intensity
energy saving