| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple, practical, and effective method of reusing wet dust present in a material generated in a blast furnace, for effectively using wet dust collected from exhaust gas of an iron-making blast furnace, which method comprises separating the wet dust into three portions, i.e., a portion comprising iron (Fe) as a useful object, a portion comprising carbon (C) as a useful object, and a portion comprising zinc (Zn) as a useful object. <P>SOLUTION: The wet dust is converted into a slurry state, and the resulting slurry is subjected to wet magnetic separation 15, and the magnetically non-attractable portion thereof is subjected to two steps 17, 18 of wet cyclone separation, whereby the wet dust is separated into three portions, i.e., a portion comprising iron (Fe) as a useful object, a portion comprising carbon (C) as a useful object, and a portion comprising zinc (Zn) as a useful object. <P>COPYRIGHT: (C)2013,JPO&INPIT |
