SINTERING OPERATION METHOD UTILIZING CRUDE GRAPHITE

PURPOSE:To obtain high thermal efficiency by kneading crude graphite produced from molten pig iron in a blast furnace with finely powdered starting materials and using the kneaded material as primary fuel for sintering in place of nearly equivalent coke breeze. CONSTITUTION:Unrefined crude graphite (a) produced from molten pig iron in a blast furnace is kneaded with dusts (b) as finely powdered starting materials in a kneader 1 after the water content is regulated to about 9%, and the kneaded material is sent to an ore storage tank 2 as primary fuel for sintering. This primary fuel is mixed with ore, secondary starting materials and coke breeze in primary and secondary mixers 3, 4, and the mixture is fed to a pallet carriage 5 as a starting material to be sintered in the form of granules. Thus, the consumption unit of coke breeze can be reduced.