发明名称 |
Method for pretreating and improving coking coal quality for blast furnace coke |
摘要 |
Methods for pretreating and improving coking coal quality for producing blast-furnace coke by: (a) rapid-heating the coal charge in a fluidized-bed to a temperature range between not lower than 300° C. and not higher than the temperature at which the coal charge begins to soften, at a rate of 30 to 10<SUP>3 </SUP>° C./min., (b) classifying the rapid-heated coal charge to fine- and coarse-size coal, and then (c-1) briquetting the fine-size coal or (c-2) rapid-heating the fine- and coarse-size coal individually in a pneumatic preheater to a temperature range between not lower than 300° C. and not higher than the temperature at which the coal charge begins to soften, at a rate of 10<SUP>3 </SUP>to 10<SUP>5 </SUP>° C./min., and (d) forming the fine-size coal.
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申请公布号 |
US2007187222(A1) |
申请公布日期 |
2007.08.16 |
申请号 |
US20040938266 |
申请日期 |
2004.09.10 |
申请人 |
KATO KENJI;KUBOTA YUKIHIRO;ARIMA TAKASHI;SASAKI MASAKI;MATSUURA MAKOTO;NAKAI HIROKI |
发明人 |
KATO KENJI;KUBOTA YUKIHIRO;ARIMA TAKASHI;SASAKI MASAKI;MATSUURA MAKOTO;NAKAI HIROKI |
分类号 |
C10B57/00;C10B57/04;C10B53/08;C10B57/08;C10L5/04;C10L9/08 |
主分类号 |
C10B57/00 |
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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