CAJ | 학술논문

气基直接还原铁以比废钢价格低、有害元素少的优势逐渐成为冶炼高端金属材料的优质原料。我国的气基直接还原铁生产工艺处在成长阶段，既要消化吸收国外的技术，也要开发自有的国产技术，尤其是关键设备和技术成为实验室技术扩大到工业化生产的瓶颈。从气基直接还原铁的原理出发，以 MIDREX法为例重点介绍直接还原铁生产工艺原理、装备特点，为我国直接还原铁的发展提供参考。
기기직접환원철이비폐강개격저、유해원소소적우세축점성위야련고단금속재료적우질원료。아국적기기직접환원철생산공예처재성장계단，기요소화흡수국외적기술，야요개발자유적국산기술，우기시관건설비화기술성위실험실기술확대도공업화생산적병경。종기기직접환원철적원리출발，이 MIDREX법위례중점개소직접환원철생산공예원리、장비특점，위아국직접환원철적발전제공삼고。
The direct reduced iron (DRI)gradually become high quality raw material for high-end metal smelting,with advantage of lower price than the scrap and less harmful elements.The gas-based direct reduced iron-making technology in China is in the high-speed growth stage,so our country not only need to study and absorbing foreign existing technology,but also to create own domestic technology,especially when the key equipment and tech-nology become the bottleneck between laboratory techniques and the industrialized production.In the article,pro-ceeding from the gas-based direct reduction basic principle,the MIDREX technology is took as example for introdu-cing its process principle and equipment characteristics,to provide reference for the development of direct reduced i-ron in China.