发明公开
- 专利标题: METHOD FOR LOADING RAW MATERIAL INTO BLAST FURNACE
- 专利标题(中): 将原料装入高炉的方法
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申请号: EP13791416.4申请日: 2013-05-17
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公开(公告)号: EP2851437A1公开(公告)日: 2015-03-25
- 发明人: HIROSAWA, Toshiyuki , WATAKABE, Shiro , ISHII, Jun , ICHIKAWA, Kazuhira
- 申请人: JFE Steel Corporation
- 申请人地址: 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo 100-0011 JP
- 专利权人: JFE Steel Corporation
- 当前专利权人: JFE Steel Corporation
- 当前专利权人地址: 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo 100-0011 JP
- 代理机构: Hoffmann Eitle
- 优先权: JP2012114860 20120518; JP2012114862 20120518
- 国际公布: WO2013172042 20131121
- 主分类号: C21B5/00
- IPC分类号: C21B5/00
摘要:
According to the present invention, by setting the average layer thickness L av1 at each rotation of the rotating chute, calculated by Expression 1, to be smaller than the thickness h of coke charged into the shaft central portion of the blast furnace, it is possible to provide a method for charging raw material into a blast furnace that ensures gas permeability in the blast furnace, stabilizes blast furnace operations, and improves thermal efficiency even when the amount of coke is small, or an operation to blow in a large amount of pulverized coal is performed. Expression 1 is L av1 = V n /((R n 2 -R n-1 2 )π), where V n is the charged raw material volume (m 3 ) per rotation at the n th rotation, and R n is the falling radius (m) of charged raw material at the n th rotation.
公开/授权文献
- EP2851437B1 METHOD FOR LOADING RAW MATERIAL INTO BLAST FURNACE 公开/授权日:2018-10-03
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