【摘要】 在国家产业升级、节能减排的大背景下,钢铁节能减排、清洁生产、最大限度地减少烧结和焦化工序的SO₂、NO_X、CO₂和烟粉尘排放、构筑绿色产业体系,是我国钢铁企业转型升级的主要目标。非高炉炼铁工艺对炼铁工序的节能减排、实现生产过程环境友好、降低炼铁对主焦煤的依赖具有得天独厚的优势。本文通过分析非高炉炼铁主流工艺的现状,阐明了各个工艺在中国的未来适应性。随着铁矿精选技术、煤制气技术的成熟,及气基竖炉生产规模的大型化,煤制气-竖炉将成为我国主要的直接还原生产工艺。Corex工艺在特定的资源条件下,在成本、能耗和环境上的竞争力将可能超过高炉。更多还原

【Abstract】 In the context of national industrial upgrading, energy conservation and emission reduction, the main goals of Chinese steel enterprises upgrading are energy saving and emission reduction, clean manufacturing, minimizing SO₂, NO_X, CO₂ and dust emissions of sintering and coking processes, building a green industry system. Non-blast furnace ironmaking process has unique advantages in energy saving and emission reduction of ironmaking process, environmental friendliness of production process, and reducing dependence on main coking coal. With the maturity of iron ore concentrating technology, coal gasification production technology and the large-scale production of gas-based shaft furnace, coal gasification-shaft furnace will become the main direct reduction production technology in China. Corex process will be more competitive in cost, energy consumption and environment than blast furnace under specific resource conditions.更多还原