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    • 2. 发明申请
    • 金属鉄の製法
    • 金属铁的生产方法
    • WO2003020988A1
    • 2003-03-13
    • PCT/JP2002/005997
    • 2002-06-17
    • 株式会社神戸製鋼所菊池 晶一徳田 耕司小林 勲
    • 菊池 晶一徳田 耕司小林 勲
    • C21B13/10
    • C21B13/0086C21B13/0006C21B13/0046C21B13/0073C21B13/105Y02P10/136
    • A technique capable of producing metal iron high in metallization and iron purity with high yield and efficiency by minimizing a metal iron re-oxidizing problem encountered at the end of solid reduction when producing metal iron by heating/reducing material substances including an iron-oxide-containing substance and a carbonaceous reducing agent. A method of producing metal iron by heating material substances including an iron-oxide-containing substance and a carbonaceous reducing agent in a moving hearth type reducing/melting furnace, and reducing/melting the iron oxide in the material substances, wherein the reducing/melting furnace is partitioned into at least three sections in the moving direction of the hearth - namely, a solid reducing section on the upstream side in the hearth moving direction, a carburizing/melting section on the downstream side, and a reducing/aging section between the solid reducing section and the carburizing/melting section.
    • 通过使通过加热/还原材料物质(包括氧化铁 - 氧化物)生产金属铁来最小化在固体还原结束时遇到的金属铁再氧化问题,能够以高产率和高效率生产金属化和铁纯度高的金属铁和铁纯度的技术, 含碳物质和碳质还原剂。 一种通过在移动的炉床型还原/熔融炉中加热含氧化铁物质和碳质还原剂的物质物质来生产金属铁的方法,并且还原/熔化物质中的氧化铁,其中还原/熔融 炉子沿炉床的移动方向分为至少三个部分,即炉床移动方向的上游侧的固体还原部分,下游侧的渗碳/熔化部分,以及下炉部分之间的还原/老化部分 固体还原段和渗碳/熔化段。