METHOD FOR MANUFACTURING GRANULATING RAW MATERIAL FOR SINTERING, DEVICE FOR MANUFACTURING SAME, AND METHOD FOR MANUFACTURING SINTERED ORE FOR BLAST FURNACE

WIPO Patent Application WO/2013/175601

A1

Proposed are a method for manufacturing granulating raw material for sintering, a device therefor, and a method for manufacturing sintered ore for a blast furnace using the granulating raw material for sintering thus obtained, the method for manufacturing granulating raw material for sintering having a mixing step for adding water to an admixture raw material and mixing in a drum mixer, and a granulation step for granulating the mixed admixture raw material using a pan pelletizer, wherein coarse pseudo particles on the surface layer of the rolling layer of the admixture raw materials retained inside the pan pelletizer are granulated while being cracked in the granulation step. Granulation can thereby be carried out using iron ore fine that is difficult to granulate, and a raw material for sintering having good permeability can be manufactured by depositing coke breeze on the granulated pseudo particles. The combustion efficiency and melt formation conditions can be improved and the strength and productivity of the sintered ore can be enhanced by manufacturing a sintered ore using such a raw material for sintering.

HIGUCHI TAKAHIDE (JP)
TAKEUCHI NAOYUKI (JP)
NUSHIRO KOUICHI (JP)

PCT/JP2012/063285

November 28, 2013

May 24, 2012

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JFE STEEL CORP (JP)
HIGUCHI TAKAHIDE (JP)
TAKEUCHI NAOYUKI (JP)
NUSHIRO KOUICHI (JP)

C22B1/16; C22B1/245

JP2004183031A	2004-07-02
JPH09157763A	1997-06-17
JPH09279259A	1997-10-28
JP2008519158A	2008-06-05

OGAWA, Junzo et al. (JP)
Brook Junzo (JP)

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