Invention Grant
- Patent Title: Method for operating blast furnace
- Patent Title (中): 高炉操作方法
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Application No.: US13388786Application Date: 2010-08-10
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Publication No.: US08945274B2Publication Date: 2015-02-03
- Inventor: Takeshi Sato , Taihei Nouchi , Hidekazu Fujimoto , Takashi Anyashiki , Hideaki Sato
- Applicant: Takeshi Sato , Taihei Nouchi , Hidekazu Fujimoto , Takashi Anyashiki , Hideaki Sato
- Applicant Address: JP
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2009-185412 20090810; JP2010-175265 20100804
- International Application: PCT/JP2010/063797 WO 20100810
- International Announcement: WO2011/019086 WO 20110217
- Main IPC: C21B15/00
- IPC: C21B15/00 ; C21B5/00
Abstract:
A coke layer and an ore layer are formed in a blast furnace. The coke layer is formed of conventional coke and the ore layer is formed of carbon iron composite, conventional coke, and ore. The mixing percentage of the conventional coke in the ore layer with respect to the ore is 0.5 mass % or more. Slowing of the gasification reaction of carbon iron composite in the cohesive zone can be suppressed.
Public/Granted literature
- US20120205839A1 METHOD FOR OPERATING BLAST FURNACE Public/Granted day:2012-08-16
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