公开(公告)号：US06797034B2

公开(公告)日：2004-09-28

申请号：US10154962

申请日：2002-05-28

申请人： Hiroshi Sugitatsu ,  Hidetoshi Tanaka ,  Takao Harada

发明人： Hiroshi Sugitatsu ,  Hidetoshi Tanaka ,  Takao Harada

IPC分类号： C12B1314

CPC分类号： C21B13/0073 ,  C10B47/30 ,  C21B13/00 ,  C21B13/10 ,  C21B2100/44 ,  C21B2100/64 ,  Y02P10/136

摘要： A method of producing reduced metals is disclosed in which a mixture of a metal oxide and a reducing agent is heated by a burner such that the metal oxide is reduced to a reduced metal. Dry-distilled gas generated during carbonization of an organic matter-containing component is used as fuel for the burner. The sensible heat of exhaust gas evolved by the burner is utilized as heat for carbonizing the organic matter-containing component. Carbide derived by carbonizing the organic matter-containing component is used as the above reducing agent. This method yields excellent cost performance. An apparatus for reducing metal oxides is also disclosed.

摘要翻译： 公开了一种生产还原金属的方法，其中金属氧化物和还原剂的混合物通过燃烧器加热，使得金属氧化物还原成还原金属。 作为燃烧器的燃料，使用含有机物成分的碳化时产生的干蒸馏气体。 由燃烧器放出的废气的显热用作用于碳化含有机物的组分的热。 使用通过碳化含有机物成分得到的硬质合金用作上述还原剂。 这种方法可以获得出色的性价比。 还公开了还原金属氧化物的装置。

公开(公告)号：US06482351B2

公开(公告)日：2002-11-19

申请号：US09828802

申请日：2001-04-10

申请人： Susumu Kamikawa ,  Kouichi Hirata ,  Yoshimitsu Onaka

发明人： Susumu Kamikawa ,  Kouichi Hirata ,  Yoshimitsu Onaka

IPC分类号： C12B1314

CPC分类号： C22B1/245 ,  C21B13/105 ,  C22B5/10

摘要： An apparatus for producing reduced iron dries agglomerates, pelletized from a powdery mixture of an iron oxide powder and a reducing agent, in a drying chamber, preheats the dried agglomerates in a preheating chamber, and then reduces the preheated agglomerates in a high temperature atmosphere of a reducing furnace. In the preheating chamber, an off-gas from the reducing furnace is convected to preheat the dried agglomerates. A decrease in the fuel cost, and downsizing of the equipment can be achieved by effective use of the sensible heat of the off-gas discharged from the reducing furnace. Moreover, a downsized, simplified system for treatment of the off-gas is realized by decreasing the amount of the off-gas.

摘要翻译： 用于生产还原铁的装置在干燥室中将由氧化铁粉末和还原剂的粉末状混合物造粒的团块干燥，在预热室中预热干燥的附聚物，然后在预热的聚合物的高温气氛 还原炉。 在预热室中，来自还原炉的废气被对流以预热干燥的附聚物。 可以通过有效地利用从还原炉排出的废气的显热来实现燃料成本的降低和设备的小型化。 此外，通过减少废气的量来实现废气处理的简化的简化系统。