JP4220988B2 - 溶鉄製造方法 - Google Patents
溶鉄製造方法 Download PDFInfo
- Publication number
- JP4220988B2 JP4220988B2 JP2005255541A JP2005255541A JP4220988B2 JP 4220988 B2 JP4220988 B2 JP 4220988B2 JP 2005255541 A JP2005255541 A JP 2005255541A JP 2005255541 A JP2005255541 A JP 2005255541A JP 4220988 B2 JP4220988 B2 JP 4220988B2
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- Prior art keywords
- furnace
- rotary hearth
- reduced iron
- iron
- gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Manufacture Of Iron (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
Claims (1)
- 少なくとも粉状酸化鉄含有物質と粉状炭素質還元材とを混合してなる原料を、回転炉床炉で還元して還元鉄を得る還元工程と、該還元工程から排出された還元鉄に混入したこの還元鉄よりも小径の異物を分級手段により分級し、この小径の異物を除去する分級工程と、該分級工程で前記小径の異物が除去された還元鉄を溶解し溶鉄を得る溶解工程とを備えた溶鉄製造方法であって、前記小径の異物が、前記回転炉床炉の炉内で炉床表面保護または炉内雰囲気調整のために用いられる粉状炭素質物質または粉状耐火物物質であることを特徴とする溶鉄製造方法。
Priority Applications (1)
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JP2005255541A JP4220988B2 (ja) | 2005-09-02 | 2005-09-02 | 溶鉄製造方法 |
Applications Claiming Priority (1)
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JP2005255541A JP4220988B2 (ja) | 2005-09-02 | 2005-09-02 | 溶鉄製造方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2000230961A Division JP3735016B2 (ja) | 2000-07-31 | 2000-07-31 | 溶鉄製造方法および溶鉄製造装置 |
Publications (2)
Publication Number | Publication Date |
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JP2006022408A JP2006022408A (ja) | 2006-01-26 |
JP4220988B2 true JP4220988B2 (ja) | 2009-02-04 |
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ID=35795892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005255541A Expired - Fee Related JP4220988B2 (ja) | 2005-09-02 | 2005-09-02 | 溶鉄製造方法 |
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JP (1) | JP4220988B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8518146B2 (en) | 2009-06-29 | 2013-08-27 | Gb Group Holdings Limited | Metal reduction processes, metallurgical processes and products and apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102374773B (zh) * | 2010-08-08 | 2013-10-30 | 中国铝业股份有限公司 | 一种炭素回转窑沉降室改造方法 |
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2005
- 2005-09-02 JP JP2005255541A patent/JP4220988B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8518146B2 (en) | 2009-06-29 | 2013-08-27 | Gb Group Holdings Limited | Metal reduction processes, metallurgical processes and products and apparatus |
Also Published As
Publication number | Publication date |
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JP2006022408A (ja) | 2006-01-26 |
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