公开(公告)号：US6146440A

公开(公告)日：2000-11-14

申请号：US230564

申请日：1999-08-04

申请人： Alessandro De Cesare ,  Giansilvio Malgarini ,  Paolo Granati ,  Giuseppe Federico

发明人： Alessandro De Cesare ,  Giansilvio Malgarini ,  Paolo Granati ,  Giuseppe Federico

IPC分类号： C21B13/00 ,  C21B13/14 ,  C21C5/56 ,  C21B11/00

CPC分类号： C21B13/0026 ,  C21B13/14 ,  C21C5/567 ,  Y02P10/136 ,  Y02P10/265 ,  Y02P10/283

摘要： A process is described for direct production of cast iron starting from iron bearing ore in an apparatus having two communicating chambers in which to carry out the process, comprising the following operations: pre-reduction and pre-heating to founding point of the iron bearing ore in a first substantially cylindrical chamber; final reduction, carburization and founding of the resulting iron in a second chamber arranged below said first chamber, provide the reducing gas both in said second and in said first chamber, provide the reducing gas both in said second and in said first chamber, characterized by the fact that: said iron bearing ore and oxygen are introduced into said first chamber through the side walls thereof, simultaneously but separating, the oxygen being introduced at a speed lower or equal to the speed of introduction of said iron bearing ore; and said oxygen, coal and flux are introduced into said second chamber simultaneously but separately through the side walls thereof and in a manner inclined downwards and towards the center of said second chamber.

摘要翻译： PCT No.PCT / IT97 / 00198 Sec。 一九九九年八月四日 102（e）1999年8月4日PCT PCT 1997年7月31日PCT公布。 第WO98 / 04751号公报 日期1998年2月5日描述了一种用于在具有两个连通腔室的设备中从含铁矿石直接生产铸铁的方法，其中执行该方法，包括以下操作：预还原和预热至成立点 的铁轴承矿石在第一基本上圆柱形的室中; 最终还原，渗碳和在布置在所述第一室下方的第二室中形成所得铁，在所述第二室和所述第一室中都提供还原气体，在所述第二室和所述第一室中提供还原气体，其特征在于： 事实是：所述含铁矿石和氧气同时通过其侧壁引入所述第一室，但分离时，以低于或等于所述含铁矿石的引入速度的速度引入氧气; 并且所述氧，煤和助熔剂同时被引入所述第二室中，但是分开地通过其侧壁并且以向下倾斜并朝向所述第二室的中心的方式引入。

公开(公告)号：US06352574B1

公开(公告)日：2002-03-05

申请号：US09381449

申请日：1999-12-20

申请人： Paolo Granati ,  Antonello Di Donato ,  Giuseppe Federico

发明人： Paolo Granati ,  Antonello Di Donato ,  Giuseppe Federico

IPC分类号： C21B1100

CPC分类号： C21B13/0026 ,  C21B2100/66 ,  Y02P10/136

摘要： A process is described for direct production of cast iron starting from iron bearing ore in an apparatus having two communicating chambers in which to carry out the process, comprising the following operations: pre-reduction and pre-heating to founding point of the iron bearing ore in a first substantially cylindrical chamber; final reduction, carburization and founding of the resulting iron in a second chamber arranged below said first chamber, in which coal and oxygen, injected into said second chamber, provide the reducing gas both in said second and in said first chamber, characterized by the fact that: said iron bearing ore and oxygen are introduced into said first chamber through the side walls thereof, simultaneously but separately, the oxygen being introduced at a speed lower or equal to the speed of introduction of said iron bearing ore; and said oxygen, coal and flux are introduced into said second chamber simultaneously but separately through the side walls thereof and in a manner inclined downwards and towards the center of said second chamber.

摘要翻译： 描述了一种用于在具有两个连通室的设备中从含铁矿石直接生产铸铁的方法，其中执行该方法，包括以下操作：预还原和预加热到铁轴承矿石的起点 在第一大致圆柱形的腔室中; 最终还原，渗碳和在所述第一室内布置的第二室中的所得铁的建立，其中注入到所述第二室中的煤和氧在所述第二室和所述第一室中都提供还原气体，其特征在于： 所述含铁矿石和氧通过其侧壁同时引入所述第一室中，但是分开地以低于或等于所述含铁矿石的引入速度的速度引入氧气; 并且所述氧，煤和助熔剂同时被引入所述第二室中，但是分开地通过其侧壁并且以向下倾斜并朝向所述第二室的中心的方式引入。