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文章简述了直接还原技术的现状,其发展速度比预计的慢。目前,以气体还原剂法为主流,而以煤为还原剂的方法亦受到人们普遍重视,并得到迅速开发,已工业化的各种工艺在不断改进完善,效益不断提高,单机能力不断扩大,新工艺方法不断涌现。熔化还原克服了直接还原的不足而发展迅速,成为目前非高炉炼铁瞩目的方向,化石燃料以外的能源炼铁已被列入研究计划。文章还展望了直接还原和熔化还原在钢铁冶金工业中的前景和地位,并讨论了非高炉炼铁在我国钢铁工业中的前景。
The article outlines the status of direct reduction technology, its development slower than expected. At present, the gas reductant method is the mainstream, and the coal as a reductant method has also been widely valued by people and has been rapidly developed. The various industrialized processes are continuously improving and improving, the benefits are continuously improved, the stand-alone capacity is constantly expanding, and new Technological methods continue to emerge. Melting reduction overcomes the shortcomings of direct reduction and the rapid development has become the current non-blast furnace smelting direction, energy fossil fuels other than iron has been included in the research program. The article also looks forward to the prospects and status of direct reduction and smelting reduction in the iron and steel metallurgy industry and discusses the prospect of non-blast furnace ironmaking in China’s steel industry.