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公开(公告)号:WO2008042996A1
公开(公告)日:2008-04-10
申请号:PCT/US2007/080362
申请日:2007-10-04
申请人: NU-IRON TECHNOLOGY, LLC , ENGLUND, David , BLEIFUSS, Rodney , IWASAKI, Iwao , FOSNACHT, Donald , BRANDON, Mark , TRUE, Bradford
发明人: ENGLUND, David , BLEIFUSS, Rodney , IWASAKI, Iwao , FOSNACHT, Donald , BRANDON, Mark , TRUE, Bradford
CPC分类号: F27B9/028 , C21B13/0073 , C21B13/10 , C21B13/105 , C21B2100/66 , F27B9/16 , F27B9/2407 , F27B9/30 , F27B9/40 , F27D17/00 , Y02P10/136 , Y02P10/283
摘要: A hearth furnace (10) for producing metallic iron material has a furnace housing (11) with a drying/preheat zone (12) capable of providing a drying/preheat atmosphere for reducible material, a conversion zone (13) capable of providing a reducing atmosphere for reducible material, a fusion zone (14) capable of providing an atmosphere to at least partially reduced metallic iron material, and optionally a cooling zone (15) capable of providing a cooling atmosphere for reduced material containing metallic iron material. A movable hearth (20) within the furnace housing (11) in a direction through the drying/preheat zone (12), then the conversion zone (13), then the fusion zone (14), and then the cooling zone (15). A separation barrier 30 is positioned within at least a portion of the conversion zone (13), the separation barrier (30) separating the conversion zone (13) into a combustion region (32) and a reducing region (31) with the reducing region (31) adjacent the hearth (20) and the combustion region (32) adjacent the reducing region (31) and spaced from the hearth (20).
摘要翻译: 一种用于生产金属铁材料的炉床(10)具有炉壳(11),其具有能够为可还原材料提供干燥/预热气氛的干燥/预热区(12),能够提供还原性的转化区(13) 用于可还原材料的气氛,能够提供至少部分还原的金属铁材料的气氛的熔融区(14),以及任选地能够为含有金属铁材料的还原材料提供冷却气氛的冷却区(15)。 在炉壳体(11)内的可移动炉床(20)沿着干燥/预热区(12)的方向,然后是转化区(13),然后是熔融区(14),然后是冷却区(15) 。 分离屏障30位于转化区(13)的至少一部分内,分离屏障(30)将转化区(13)分离成燃烧区(32)和还原区(31),还原区 (31),邻近所述炉膛(20)和与所述还原区域(31)相邻并与所述炉膛(20)间隔开的所述燃烧区域(32)。