我国首家直接还原铁生产厂投产辽宁省喀左县海绵铁冶炼厂是我国第一家投入工业生产的铁矿石直接还原厂。该厂由长沙冶金设计研究院设计，１９９３年５月开始建设，１９９４年１０月建成，生产能力为年产海绵铁２．５万ｔ，项目总投资５２９２万元，形成固定资产４６００万... China’s first direct reduction of iron production plant put into operation in Liaoning Province Caozuo sponge iron smelter is China’s first industrial production of iron ore direct reduction plant. The plant was designed by Changsha Metallurgical Design and Research Institute and started construction in May 1993. It was completed in October 1994 and has an annual capacity of 25,000 tons of sponge iron with a total investment of 52.92 million yuan and a fixed asset of 46 million. .