公开(公告)号：US20030061909A1

公开(公告)日：2003-04-03

申请号：US10289290

申请日：2002-11-07

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO

发明人： Takuya Negami ,  Kazuo Kunii ,  Shinichi Inaba ,  Masataka Shimizu ,  Isao Kobayashi ,  Yoshimichi Takenaka ,  Toshihide Matsumura ,  Akira Uragami ,  Takashi Kujirai ,  Osamu Tsuchiya ,  Kimio Sugiyama ,  Shuzo Ito ,  Shoichi Kikuchi

IPC分类号： C21B011/00

CPC分类号： C21B13/0046 ,  C21B13/105

摘要： A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio. Through the employment of an apparatus for making metallic iron of the present invention, the above-described method is efficiently carried out, and metallic iron having a high iron purity can be made continuously as well as productively not only from iron oxide having a high iron content but also from iron oxide having a relatively low iron content.

公开(公告)号：US20010049980A1

公开(公告)日：2001-12-13

申请号：US09891653

申请日：2001-06-26

申请人： KABUSHIKI KAISHA KOBE SEIKO SHO

发明人： Takuya Negami ,  Kazuo Kunii ,  Shinichi Inaba ,  Masataka Shimizu ,  Isao Kobayashi ,  Yoshimichi Takenaka ,  Toshihide Matsumura ,  Akira Uragami ,  Takashi Kujirai ,  Osamu Tsuchiya ,  Kimio Sugiyama ,  Shuzo Ito ,  Shoichi Kikuchi

IPC分类号： C21B015/00

CPC分类号： C21B13/0046 ,  C21B13/105

摘要： A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio. Through the employment of an apparatus for maling metallic iron of the present invention, the above-described method is efficiently carried out, and metallic iron having a high iron purity can be made continuously as well as productively not only from iron oxide having a high iron content but also from iron oxide having a relatively low iron content.

摘要翻译： 制造金属铁的方法，其中使用含有铁矿石等铁氧化物的致密物和煤等碳质还原剂的材料，通过加热使氧化铁还原， 制作金属铁。 在这种还原过程中，在压实体的表面上产生并生长由金属铁组成的壳，并且炉渣中的炉渣聚集。 该还原继续，直到金属铁壳内基本上不存在氧化铁。 随后，进一步加热以熔化金属铁和炉渣。 熔融的金属铁和熔渣彼此分离，从而获得具有相对高的金属化比的金属铁。 通过使用本发明的金属铁加工装置，可有效地进行上述方法，并且可以连续地连续生产具有高铁纯度的金属铁，并且不仅可以从具有高铁的铁氧化物 含量也来自铁含量较低的氧化铁。