| 摘要 |
An apparatus and process for producing metallized iron ore by direct reduction techniques for use in iron and steelmaking furnaces, the apparatus and process first involving separation and treatment of run-of-mine iron ore to produce controlled and optimum size fractions for reduction and metallization in suitable direct reduction systems. The apparatus and process further involves a particular size fraction entering a series of staged fluidized bed reduction systems, each system provided with auxiliary ore feeding and preheating facilities, and with the process provided with a single source of, or production facilities for, high-temperature reducing gases which effect reduction to desired high degrees of metallization. The apparatus and process provides for essentially a complete utilization of reducing gases and for enhanced incremental scaleup capabilities to a single-line plant for the production of metallized iron ore.
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