Apparatus and method for manufacturing a blast furnace sinter of the blast furnace for sintering raw materials

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing apparatus for sintering raw material for a blast furnace and a manufacturing method of a sintered ore for the blast furnace capable of improving productivity and strength of the sintered ore when sintering a pseudo particle having an outer package of a limestone auxiliary material and an aggregated material (carbonaceous material) formed on a surface of a pseudo particle as a sintering raw material.;SOLUTION: There is provided a manufacturing method of a sintered ore for a blast furnace including a fracture and classification process S1 of controlling particle size so that the particle diameter of the limestone is less than 3 mm, a mass percentage of the limestone having the particle diameter of 2 mm or more and less than 3 mm in the whole limestone becomes 40 mass% or more, a pseudo particle forming process S2 of obtaining pseudo particles by granulating a raw material other than the limestone and a powder coke, a coating process S3 of coating the limestone and the powder coke of which the particle size is controlled in the fracture and classification process in a drum mixer.;COPYRIGHT: (C)2014,JPO&INPIT