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本文介绍了铁矿石固态还原的机理以及近50年来直接还原技术的进展情况。探讨了反应罐、回转窑、流化床和竖炉等各种工艺。并指出了各自的优点和存在的问题。对将来的发展趋势作了讨论。
This paper describes the mechanism of iron ore solid-state reduction and the progress of direct reduction technology in the past 50 years. Explore the reaction tank, rotary kiln, fluidized bed and shaft furnace and other processes. And pointed out their own advantages and problems. The future trend of development was discussed.