节能减排 低碳炼铁 实现中国高炉生产的科学发展

Energy-Saving,Emission-Reducing and Low Carbon Ironmaking,Realizing Scientific Development of BF Production in China

介绍了中国近年来高炉炼铁的概况,侧重介绍在节能降耗、高风温、装备大型化等方面的技术进展。进而深入论述炼铁技术科学发展观的内涵,主要包括:加强炼铁工业结构调整,认真转变发展方式,转变观念,以精料为基础;以低碳炼铁为目标,寻求与冶炼条件相适应的合适冶炼强度,合理富氧喷煤、提高风温、大力降低焦比;重视高炉煤气流分布及能量利用,降低风耗、电耗乃至所有能耗;重视环境保护,努力降低排放,并加强其无害化处理;从而实现高炉炼铁在低耗、高效、优质、长寿和环保诸方面新的突破;与此同时,要采取坚决措施整顿炼铁的无序生产,不能让落后产能复出或继续生产。节能减排,低碳炼铁,是实现中国高炉炼铁生产科学发展的中心环节。

In this paper,an overview of blast furnace ironmaking in China and technological progress in fields of energy-saving,high blast temperature,large-scale equipment etc.are introduced.Subsequently,scientific development concept of ironmaking technologies is deeply exposited.The contents include： strengthen adjustment of ironmaking industrial structure,change development model and change concepts.On the base of high-grade burden,aiming at low-carbon ironmaking,seek proper smelting intensity,rational oxygen-enrichment and PCI,increase blast temperature and decrease coke rate.Improve gas distribution and energy utilization,lowering all types of energy consumption involving blast and power etc.Decrease emission and strengthen innocuous treatment.Thus some new breakthrough in the aspects of low consumption,high efficiency,high quality,long campaign life and environment protection are achieved.Meanwhile,resolute measures should be taken to rectify the disorder in ironmaking production and prohibit backward production capacity return or continue producing.To sum up,energy-saving,emission reduction and low-carbon ironmaking are the central steps of realizing scientific development of blast furnace ironmaking in China.