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新的历史阶段,资源短缺和环保压力对钢铁企业的生存和钢铁工业的可持续发展提出了严峻挑战,开发炼铁新工艺成为必然。转底炉珠铁工艺是近十几年来兴起的一项煤基非高炉炼铁新工艺,并已经实现了商业化应用。该工艺能实现渣铁快速分离,得到高品质珠铁,且在能源、成本、环保、原料适应性等方面有较强的竞争力。综述了该工艺发展历程、基本特点和应用潜力,进而结合中国钢铁工业节能减排要求和资源现状,指出了该工艺在中国钢铁冶金和资源利用领域可持续发展中的意义。最后,简要介绍了针对该工艺课题组已有的研究基础。
The new historical stage, the shortage of resources and the pressure of environmental protection have posed severe challenges to the survival of iron and steel enterprises and the sustainable development of the steel industry. It is inevitable to develop new iron-making processes. Rotary hearth furnace bead technology is a new coal-based non-blast furnace ironmaking process that has emerged in recent ten years and has been commercialized. The process can realize rapid separation of slag and iron and obtain high quality bead iron, and has strong competitiveness in energy, cost, environmental protection and raw material adaptability. The development process, basic characteristics and application potential of the process are reviewed. Then the significance of this process in the sustainable development of China’s iron and steel metallurgy and resource utilization is pointed out based on the requirements of energy saving and emission reduction and resources in China’s iron and steel industry. Finally, a brief introduction of the existing research foundation for the technology group is given.