| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rotary kiln dust pelletization method by which, in order to obtain high strength pellets hardly causing disintegration when repeated to a rotary kiln in the pelletization of dust recovered from an exhaust gas system of the rotary kiln used for firing nickel oxide ore, the crushing strength of pellets directly after the pelletization can be improved by 5% or more as compared with that of pellets obtained when coagulant-free water is added as pelletizing water. <P>SOLUTION: An aqueous solution in which an inorganic or organic coagulant is dissolved is added as the pelletizing water to the dust recovered from exhaust gas treatment equipment of the rotary kiln used for firing nickel oxide ore to obtain high strength pellet. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
