PURPOSE: To manufacture the title ore by removing part of water blended in raw material prior to firing the blended raw material on a pallet in sintering fine ore in DL-type sintering machine.
CONSTITUTION: Preheating and drying furnace 28 is set between firing furnace 6 on pallet 7 of the DL-type sintering machine and sloping plate 5 for water-contg. blended raw material 1 for sintering. By sucking or pressing hot air and exhaust gas in furnace 28, 3W25% of the total water content (4.5W8.0%) of blended raw material 8 on pallet 7 is removed. Material 8 is ignited in firing furnace 6 and sintered by combustion of coke or the like in material 8 with air from wind boxes 9 while being moved on pallet 7. The resulting sintered ore is crushed to a suitable size with crusher 13 and cooled in cooler 15. Hot air from cooler 15 and hot exhaust gas from boxes 9 are returned to dryer 28 and used to remove water from blended raw material.
KONNO DAIKOU
HOSOYA YOUZOU
SHIBATA MITSUMASA
