Method for manufacturing granulating raw material for sintering, device for manufacturing same, and method for manufacturing sintered ore for blast furnace

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 havin...

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Hauptverfasser: NUSHIRO KOUICHI, TAKEUCHI NAOYUKI, HIGUCHI TAKAHIDE
Format: Patent
Sprache:eng
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Zusammenfassung: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.