发明名称 |
PROCESS FOR PRODUCING PRE-REDUCED IRON |
摘要 |
A producing method of direct reduced iron includes the steps of: drying an oxidized iron raw material selected from a group including iron ore and iron-making dust generated in an iron-making process to have a predetermined moisture content; mixing the oxidized iron raw material subjected to the drying step and a reducing material having a predetermined moisture content to obtain a mixture; pulverizing the mixture obtained in the mixing step for 80% minus-sieve to have a particle diameter of 70 µm to 500 µm; kneading the mixture after the moisture content of the mixture subjected to the pulverizing step is adjusted; agglomerating the mixture subjected to the kneading step to be agglomerate; and reducing the agglomerate obtained in the agglomerating step by a rotary hearth furnace to generate direct reduced iron. |
申请公布号 |
EP2204459(A1) |
申请公布日期 |
2010.07.07 |
申请号 |
EP20080840645 |
申请日期 |
2008.10.16 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
GOFUKU, HIROKI;KUWAUCHI, YUKI;NAGAI, WATARU;FUKUDA, KAZUHISA;SAWAI, TAKASHI |
分类号 |
C21B13/10;C21B13/00;C22B1/16;C22B1/24;C22B1/245;C22B1/248;C22B7/02 |
主分类号 |
C21B13/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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