发明公开
- 专利标题: 용철 제조방법
- 专利标题(英): Process for producing molten iron
- 专利标题(中): 生产钢铁的工艺
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申请号: KR1020107008340申请日: 2008-09-18
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公开(公告)号: KR1020100055534A公开(公告)日: 2010-05-26
- 发明人: 후지모토히데아키 , 미무라츠요시 , 하라다다카오 , 다테이시마사타카 , 하지카기미노리 , 스기타츠히로시
- 申请人: 가부시키가이샤 고베 세이코쇼
- 申请人地址: *-*, Wakinohama-Kaigandori *-chome, Chuo-ku, Kobe-shi, Hyogo, Japan
- 专利权人: 가부시키가이샤 고베 세이코쇼
- 当前专利权人: 가부시키가이샤 고베 세이코쇼
- 当前专利权人地址: *-*, Wakinohama-Kaigandori *-chome, Chuo-ku, Kobe-shi, Hyogo, Japan
- 代理商 제일특허법인
- 优先权: JPJP-P-2007-242650 2007-09-19
- 国际申请: PCT/JP2008/066875 2008-09-18
- 国际公布: WO2009038140 2009-03-26
- 主分类号: C21B11/00
- IPC分类号: C21B11/00
摘要:
A process for molten-iron production which comprises: charging a solid reduced iron obtained by reducing carbon composite iron oxide briquettes with heating, a carbon material, and a fluxing agent into a melting furnace of the iron bath type while bubbling an inert gas into a molten-iron layer in the melting furnace from a bottom tuyere disposed at the furnace bottom and thereby stirring the molten-iron layer; and injecting an oxygen-containing gas from a top lance disposed in the melting furnace and thereby burning the carbon material and/or the carbon contained in the molten iron to melt the solid reduced iron by the resultant combustion heat and produce molten iron. The carbon material is charged so that a slag layer made of a slag formed on the molten-iron layer when the solid reduced iron is melted into molten iron comes to have, in an upper layer part thereof, a slag layer containing the carbon material suspended therein and that a carbon-material covering layer consisting only of the carbon material is formed on the slag layer containing the carbon material suspended therein. The molten iron and slag stored in the melting furnace are discharged through a tap hole formed in a lower part of a side of the melting furnace.
公开/授权文献
- KR101188546B1 용철 제조방법 公开/授权日:2012-10-05
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