METHOD FOR MANUFACTURING SINTERED ORE USING DUST COLLECTION WATER FOR LIME CALCINING

摘要

PURPOSE: A method for manufacturing sintered ore using dust collection water for lime calcining is provided which improves granulation property of blending raw materials and improves productivity and quality of the sintered ore manufactured accordingly by increasing hydration reaction of calcium oxide using dust collection water for lime calcining with a high basicity as added water used in granulation of the blending raw materials. CONSTITUTION: In a method for manufacturing sintered ore by sintering the granulated materials after granulating the blending raw materials by adding 6 to 7 wt.% of granulation water to blending raw materials for sintering comprising fine iron ore, a subsidiary raw material containing 1 to 2 wt.% of calcium oxide and a heat source of coke, the method for manufacturing sintered ore using dust collection water for lime calcining is characterized in that the dust collection water for lime calcining having a high basicity is contained in the granulation water in an amount of 60 wt.% or more based on the weight of the granulation water, wherein the dust collection water for lime calcining having a high basicity has 9.5 pH or more.