Analysis of energy consumption for electricity and steam driven BF blast system
DAI Jian1,SUN Wen-qiang2,CAI Jiu-ju2,ZHANG Xing-liang3
(1. Energy and Environment Department,Baosteel Group Corporation,Shanghai 200122,China 2. Department of Thermal Engineering,Northeastern University,Shenyang 110819,Liaoning,China 3. Economic Management Research Institute,Baosteel Group Corporation,Shanghai 201900,China)
Abstract:To eliminate the disputes about the energy efficiencies between the electricity- and the steam driven BF blast systems,an energy utilization efficiency model and a unit consumption analysis model were developed in this study to investigate the differences of energy efficiency and energy consumption between electricity- and steam-driven BF blast systems in theory. It is shown that, for energy efficiency,an overlapping interval exists between the electricity-driven BF blast system and the steam-driven BF blast system. And the upper limit of energy efficiency for the electricity-driven BF blast system approximately equals to the lower limit for the steam-driven BF blast system. With the increase of steam temperature and pressure,the steam consumption decreases for both blast systems. When the parameters of blower are constants,the theoretical minimum steam consumption of BF blast system is the inherent property of steam with special parameters,which has no relation with the driven mode and process. The theoretical minimum steam consumption reduces while the BF volume,the steam temperature and pressure increase.
收稿日期: 2015-07-22
出版日期: 2016-04-26
引用本文:
戴 坚,孙文强,蔡九菊,张兴良. 电力驱动和蒸汽驱动高炉鼓风系统的能耗分析[J]. 钢铁, 2016, 51(5): 76-80.
DAI Jian,SUN Wen-qiang,CAI Jiu-ju,ZHANG Xing-liang. Analysis of energy consumption for electricity and steam driven BF blast system. Iron and Steel, 2016, 51(5): 76-80.
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