Invention Grant
- Patent Title: Process for producing molten iron and apparatus for producing molten iron
- Patent Title (中): 铁水的制造方法和铁水的制造装置
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Application No.: US13117231Application Date: 2011-05-27
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Publication No.: US08277536B2Publication Date: 2012-10-02
- Inventor: Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
- Applicant: Takao Harada , Hidetoshi Tanaka , Kiminori Hajika , Tadashi Yaso , Toshiyuki Kurakake
- Applicant Address: JP Kobe-shi
- Assignee: Kobe Steel, Ltd.
- Current Assignee: Kobe Steel, Ltd.
- Current Assignee Address: JP Kobe-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-120900 20060425
- Main IPC: C21B13/08
- IPC: C21B13/08 ; C21B13/10 ; C22B1/24

Abstract:
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.
Public/Granted literature
- US20110226092A1 PROCESS FOR PRODUCING MOLTEN IRON AND APPARATUS FOR PRODUCING MOLTEN IRON Public/Granted day:2011-09-22
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