为验证转底炉生产直接还原铁的可行性和经济性,采用云南铁矿资源组织开展了转底炉生产直接还原铁的工业性试验,共生产金属化率为79.29%的直接还原铁991.67 t.主要技术经济指标为:还原剂煤耗301 kg/t,发生炉煤耗290 kg/t,生产成本1179.23元/t.试验结果为转底炉直接还原铁工艺的开发提供了理论依据.
In order to verify the feasibility of technology and economy on the production of direct reduction iron by rotary hearth furnace,KISC has exploited the iron ore resources of Yunnan Province to carry out large-sealed industrial trial of RHF production,under the cooperation with Shanxi Ruito Smelting Reduction Ironmaking Company.During the industrial trial,totally 991.67 t DRI products have been produced,whose metallization rate is about79.29%.The primary technologic and economic parameters include that reductant coal rate is 301 kg/t-DRI,coal rate of gasification furnace is 290 kg/t-DRI,and the production cost is 1179.23 RMB/t-DRI.The experimental results will provide the valuable reference for development of rotary hearth furnace direct reduction technology in China.
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