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1. 发明申请

US20070295165A1 Process for Producing Molten Iron and Apparatus Therefor 审中-公开
标题翻译：生产铁水的方法及其设备
公开(公告)号：US20070295165A1
公开(公告)日：2007-12-27
申请号：US11666830
申请日：2005-10-26
申请人： Hidetoshi Tanaka , Tsuyoshi Mimura , Takao Harada , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
发明人： Hidetoshi Tanaka , Tsuyoshi Mimura , Takao Harada , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
IPC分类号： C21B13/10
CPC分类号： C21B13/0066 , C21B13/0086 , C21B13/105 , C21B13/143 , C21B2100/44 , C21B2100/66 , C22B1/245 , C22B5/10 , Y02P10/136 , Y02P10/216
摘要： A bedding carbonaceous material is charged onto a hearth of a rotary hearth furnace, carbonaceous-material containing pellets containing powdery iron ore and powdery coal are placed on the bedding carbonaceous material, and the hearth is caused to pass inside the rotary hearth furnace to heat and reduce the carbonaceous-material containing pellets to solid reduced iron and to heat and dry the bedding carbonaceous material by distillation into char. Subsequently, the solid reduced iron and the char are charged into an iron-melting furnace without being substantially cooled, and an oxygen gas is blown into the iron-melting furnace to melt the solid reduced iron, thereby obtaining molten iron. At least a part of an exhaust gas from the iron-melting furnace is used as a fuel gas for the rotary hearth furnace after being cooled and having dust removed.
摘要翻译：将床层碳质材料装入转底炉的炉床上，将含有粉状铁矿石和粉煤的颗粒的碳质材料放置在床上碳质材料上，并使炉床通过转底炉内加热和将含碳材料的颗粒还原成固体还原铁，并通过蒸馏将床料碳质材料加热并干燥成炭。随后，将固体还原铁和焦炭装入铁熔炉中而不被基本上冷却，并且将氧气吹入铁熔炉中以熔化固体还原铁，从而获得铁水。来自铁熔炉的废气的至少一部分在被冷却并且除尘后被用作转底炉的燃料气体。

2. 发明申请

US20110226092A1 PROCESS FOR PRODUCING MOLTEN IRON AND APPARATUS FOR PRODUCING MOLTEN IRON 失效
标题翻译：用于生产铁的方法和用于生产铁的装置
公开(公告)号：US20110226092A1
公开(公告)日：2011-09-22
申请号：US13117231
申请日：2011-05-27
申请人： Takao HARADA , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
发明人： Takao HARADA , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
IPC分类号： C21B15/00
CPC分类号： C22B5/10 , C21B13/0046 , C21B13/0086 , C21B13/105 , C21B13/143 , C21B2100/44 , C21B2100/60 , C21B2100/66 , C21C2100/06 , C22B1/2406 , C22B1/245 , F27B3/22 , F27B7/00 , F27B19/04 , Y02P10/136 , Y02P10/216
摘要： A process for producing molten iron with a combination of a moving-hearth reducing furnace and an iron bath-type melting furnace includes a step of charging a bedding carbonaceous material having an average particle diameter of 1 to 5 mm on a hearth of the moving-hearth reducing furnace and placing carbonaceous material-containing agglomerates containing a powdery iron oxide source and a powdery carbonaceous reductant on the bedding carbonaceous material; a step of thermally reducing the carbonaceous material-containing agglomerates while moving the hearth in the moving-hearth reducing furnace to generate solid reduced iron and simultaneously thermally carbonizing the bedding carbonaceous material to generate char; a step of continuously charging the solid reduced iron and the char into the iron bath-type melting furnace from thereabove without substantial cooling; and a step of blowing oxygen-containing gas into the iron bath-type melting furnace to melt the solid reduced iron and to thereby generate molten iron. According to this method, the amount of carbonaceous materials scattered into discharge gas can be significantly reduced and the yield of carbonaceous materials of the whole process can be improved.
摘要翻译：通过移动底板还原炉和铁浴式熔融炉的组合生产铁水的方法包括将平均粒径为1至5mm的床上含碳材料装入移动炉底炉的炉床上的步骤，炉底还原炉，将含有粉状氧化铁源和粉状碳质还原剂的含碳材料的聚集体放置在上层碳质材料上; 同时在移动炉床还原炉中移动炉床的同时热还原含碳质材料的附聚物的步骤以产生固体还原铁，同时热处理含碳质材料以产生炭; 将固体还原铁和焦炭从上方连续充入铁浴型熔炉中而不实质冷却的步骤; 以及将含氧气体吹入铁浴式熔融炉中以熔化固体还原铁并由此产生铁水的步骤。根据该方法，可以显着降低散逸到放电气体中的碳质材料的量，并且可以提高整个过程中碳质材料的产率。

3. 发明授权

US08277536B2 Process for producing molten iron and apparatus for producing molten iron 失效
标题翻译：铁水的制造方法和铁水的制造装置
公开(公告)号：US08277536B2
公开(公告)日：2012-10-02
申请号：US13117231
申请日：2011-05-27
申请人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
发明人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
IPC分类号： C21B13/08 , C21B13/10 , C22B1/24
CPC分类号： C22B5/10 , C21B13/0046 , C21B13/0086 , C21B13/105 , C21B13/143 , C21B2100/44 , C21B2100/60 , C21B2100/66 , C21C2100/06 , C22B1/2406 , C22B1/245 , F27B3/22 , F27B7/00 , F27B19/04 , Y02P10/136 , Y02P10/216
摘要： A process for producing molten iron with a combination of a moving-hearth reducing furnace and an iron bath-type melting furnace that includes charging a bedding carbonaceous material on a hearth of the moving-hearth reducing furnace and placing carbonaceous material-containing agglomerates containing a powdery iron oxide source and a powdery carbonaceous reductant on the bedding carbonaceous material; thermally reducing the carbonaceous material-containing agglomerates while moving the hearth in the moving-hearth reducing furnace to generate solid reduced iron and simultaneously thermally carbonizing the bedding carbonaceous material to generate char; hot-forming the solid reduced iron and the char into agglomerates without substantial cooling; continuously charging the agglomerates into the iron bath-type melting furnace from thereabove; and blowing oxygen-containing gas into the iron bath-type melting furnace to melt the solid reduced iron and to thereby generate molten iron.
摘要翻译：一种通过移动底板还原炉和铁浴式熔融炉的组合生产铁水的方法，该方法包括在移动炉床还原炉的炉床上装入床层碳质材料，并放置含碳质的含有粉状氧化铁源和层状碳质材料上的粉状碳质还原剂; 在移动炉床还原炉中移动炉床同时热还原含碳材料的附聚物，以产生固体还原铁，同时使含碳质材料热碳化以产生炭; 将固体还原铁和焦炭热成型为团聚体而没有实质的冷却; 将附聚物从上方连续地装入铁浴式熔融炉; 并将含氧气体吹入铁浴式熔融炉中以熔化固体还原铁并由此产生铁水。

4. 发明授权

US07993430B2 Process for producing molten iron and apparatus for producing molten iron 失效
标题翻译：铁水的制造方法和铁水的制造装置
公开(公告)号：US07993430B2
公开(公告)日：2011-08-09
申请号：US12298201
申请日：2007-03-16
申请人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
发明人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
IPC分类号： C21B13/08
CPC分类号： C22B5/10 , C21B13/0046 , C21B13/0086 , C21B13/105 , C21B13/143 , C21B2100/44 , C21B2100/60 , C21B2100/66 , C21C2100/06 , C22B1/2406 , C22B1/245 , F27B3/22 , F27B7/00 , F27B19/04 , Y02P10/136 , Y02P10/216
摘要： The disclosure relates to improvements of technology for producing metallic iron by thermally reducing an iron source such as iron ore with a carbonaceous reductant such as coke by including efficiently reducing iron oxides into metallic iron at a lower operation temperature while conducting carburization, and efficiently separating the generated metallic iron from slag-forming components such as gangue components contained in raw material ore whereby metallic iron with controlled carbon concentrations can be produced in high yield.
摘要翻译：本公开涉及通过在进行渗碳的同时在较低的操作温度下有效地将铁氧化物还原成金属铁，通过用碳质还原剂如焦炭热还原铁源例如铁矿石来改进生产金属铁的技术，并且有效地将由原料矿中含有的ang石成分等成矿成分产生金属铁，从而可以高产率生产具有可控碳浓度的金属铁。

5. 发明申请

US20090090216A1 PROCESS FOR PRODUCING MOLTEN IRON AND APPARATUS FOR PRODUCING MOLTEN IRON 失效
标题翻译：用于生产铁的方法和用于生产铁的装置
公开(公告)号：US20090090216A1
公开(公告)日：2009-04-09
申请号：US12298201
申请日：2007-03-16
申请人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
发明人： Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
IPC分类号： C21B13/10
CPC分类号： C22B5/10 , C21B13/0046 , C21B13/0086 , C21B13/105 , C21B13/143 , C21B2100/44 , C21B2100/60 , C21B2100/66 , C21C2100/06 , C22B1/2406 , C22B1/245 , F27B3/22 , F27B7/00 , F27B19/04 , Y02P10/136 , Y02P10/216
摘要： A process for producing molten iron with a combination of a moving-hearth reducing furnace and an iron bath-type melting furnace includes a step of charging a bedding carbonaceous material having an average particle diameter of 1 to 5 mm on a hearth of the moving-hearth reducing furnace and placing carbonaceous material-containing agglomerates containing a powdery iron oxide source and a powdery carbonaceous reductant on the bedding carbonaceous material; a step of thermally reducing the carbonaceous material-containing agglomerates while moving the hearth in the moving-hearth reducing furnace to generate solid reduced iron and simultaneously thermally carbonizing the bedding carbonaceous material to generate char; a step of continuously charging the solid reduced iron and the char into the iron bath-type melting furnace from thereabove without substantial cooling; and a step of blowing oxygen-containing gas into the iron bath-type melting furnace to melt the solid reduced iron and to thereby generate molten iron. According to this method, the amount of carbonaceous materials scattered into discharge gas can be significantly reduced and the yield of carbonaceous materials of the whole process can be improved.
摘要翻译：通过移动底板还原炉和铁浴式熔融炉的组合生产铁水的方法包括将平均粒径为1至5mm的床上含碳材料装入移动炉底炉的炉床上的步骤，炉底还原炉，将含有粉状氧化铁源和粉状碳质还原剂的含碳材料的聚集体放置在上层碳质材料上; 同时在移动炉床还原炉中移动炉床的同时热还原含碳质材料的附聚物的步骤以产生固体还原铁，同时热处理含碳质材料以产生炭; 将固体还原铁和焦炭从上方连续充入铁浴型熔炉中而不实质冷却的步骤; 以及将含氧气体吹入铁浴式熔融炉中以熔化固体还原铁并由此产生铁水的步骤。根据该方法，可以显着降低散逸到放电气体中的碳质材料的量，并且可以提高整个过程中碳质材料的产率。

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