发明名称 |
Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities |
摘要 |
The present invention provides a method and facility for preventing crumbling and powderization of green pellets when producing high strength green pellets using a powder feedstock and using the pellets in a rotary hearth reducing furnace and for efficiently reducing the same. It comprises kneading by a kneader 5 a feedstock of a powder of a fine particle size (20 to 80 wt % having size of not more than 10 mum) including a metal oxide and carbon-bearing powder fed from a feed storage tank 1 and producing green pellets by a pan type pelletized 7. The green pellets are screened by a pellet screen 9, then dried by a pellet dryer 11 and reduced by firing in a rotary hearth reducing furnace 13. At that time, the green pellets are continuously conveyed to prevent crumbling.
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申请公布号 |
US2004020326(A1) |
申请公布日期 |
2004.02.05 |
申请号 |
US20030415675 |
申请日期 |
2003.04.30 |
申请人 |
IBARAKI TETUHARU;ODA HIROSHI;IMURA SHOJI;TAKAHASHI MASAHARU |
发明人 |
IBARAKI TETUHARU;ODA HIROSHI;IMURA SHOJI;TAKAHASHI MASAHARU |
分类号 |
C21B13/00;C21B13/10;C22B1/24;C22B1/245;C22B5/10;F27B9/16;F27B9/36;F27D3/00;(IPC1-7):C22C1/06;C21B3/02;C21B5/02;C21B7/06;C21C5/02;C21C7/04;C22B1/00;C22B1/14;C22B7/04;C22B9/10 |
主分类号 |
C21B13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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