发明名称 |
Process for manufacturing molten metal iron |
摘要 |
A process comprising: charging a raw material compacting substance containing a carbonaceous reducing agent and an iron oxide contained substance into a moving hearth type furnace; reducing the raw material compacting substance to a reducing ratio 30 to 80% within the reducing furnace to thereby form a shell formed of metal iron or forming a state that a shell formed of metal iron or metal iron are stretched around in a network fashion and a carbonaceous reducing agent remains in a clearance therebetween; agglomerating produced slag containing FeO therein; charging the compacting substance reduced into a melting furnace in a state maintaining a high temperature, and carrying out final reducing and melting to obtain molten meal iron.
|
申请公布号 |
US6503289(B2) |
申请公布日期 |
2003.01.07 |
申请号 |
US20010820610 |
申请日期 |
2001.03.30 |
申请人 |
MIDREX INTERNATIONAL B.V. ZURICH BRANCH |
发明人 |
TANIGAKI YASUHIRO;URAGAMI AKIRA |
分类号 |
C21B13/06;C21B13/08;C21B13/10;C21B13/12;F27B3/06;F27B3/08;F27B9/16;F27B19/04;(IPC1-7):C21B11/10 |
主分类号 |
C21B13/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|