DEVICE FOR MANUFACTURING PELLETIZED SINTER FEED

WIPO Patent Application WO/2015/152112

A1

[Problem] To propose a device that forms uniformly-sized raw pellets, preventing unevenly-sized, weakly-bound, coarse pellets from being produced during pelletizing. [Solution] This invention is provided with the following: an agitator/lump-breaker that evenly disperses iron-ore fines and moisture throughout a sinter-feed mixture being processed; a first measuring instrument that samples the sinter-feed mixture that has been processed by the agitator/lump-breaker and obtains the grain-size distribution and the moisture distribution thereof; a pelletizer that, with moisture added, agitates and thereby mixes the sinter-feed mixture that has been processed by the agitator/lump-breaker, thereby pelletizing same; and a second measuring instrument that samples the pelletized sinter feed and obtains the grain-size distribution and the moisture distribution thereof. Agitation conditions for the agitator/lump-breaker, whether or not to add water in the agitator/lump-breaker, and the amount of moisture to add in the pelletizer are controlled on the basis of the grain-size distribution and moisture distribution obtained by the first measuring instrument and the grain-size distribution and moisture distribution obtained by the second measuring instrument.

HIGUCHI TAKAHIDE (JP)
IWAMI YUJI (JP)
IWASE KAZUMI (JP)
YAMAMOTO TETSUYA (JP)
OOYAMA NOBUYUKI (JP)

PCT/JP2015/059839

October 08, 2015

March 30, 2015

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JFE STEEL CORP (JP)

C22B1/16; F27B21/08; F27B21/14

JPH05148557A	1993-06-15
JP2011153332A	2011-08-11
JP2003171721A	2003-06-20

GINZA MARONIE P. C. (JP)
Patent business corporation Ginza horse chestnut patent firm (JP)

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