METHOD FOR MANUFACTURING SINTERED ORE WITH LITTLE SLAG

PROBLEM TO BE SOLVED: To provide a method for inexpensively manufacturing a sintered ore containing little slag (a sintered ore with little slag) without lowering the quality and productivity of the sintered ore, by using a high Al2O3-containing ore. SOLUTION: This manufacturing method comprises classifying various fine ores to be blended as a sintering raw material into two series (A and B) according to the Al2O3content; adding limestones (4A and 4B) of which the quantity to be added is adjusted according to the Al2O3content in the fine powder part with grain sizes of 1 mm or less in each series of the fine ores (1 and 2), to each the series of fine ores (1 and 2), so as to make the basicity CaO/SiO2of all sintering raw materials to be a required value; blending fine cokes (7A and 7B) of which each quantity to be blended is adjusted according to each of the added quantity of the limestones (4A and 4B); subsequently, mixing/ granulating each of the blends (8A and 8B); mixing (9) each granulate; and baking it in a sintering machine (10). COPYRIGHT: (C)2004,JPO