To provide a reduction melting furnace to manufacture a reduction substance of excellent product quality and perform easy and rapid operation.
This reduction melting furnace is formed such that a filling layer 7 formed of a carbon combustible material is formed and an object to be treated is charged in a filling layer 7 from an upper part, and a reduction molten substance reduced and molten in the filling layer 7 is taken out from a lower part. A support 6 to support the filling layer 7 from below is formed below the filling layer 7, a support part 6 to support the filling layer 7 from below is arranged, and a combustion chamber 3 having a burner 8 regulatable of an air-fuel ratio is arranged below the support part 6. A reduction substance and a molten substance, being an object to be treated, are taken out from the lower part of the combustion chamber wherein a reduction molten substance resides. Further, a tuyere 11 to feed oxygen-contained gas is arranged at the portion on the support part side of the filling layer 7, and a reduction molten substance treating material charge port 12 to charge a treating material for the reduction molten substance is provided in a combustion space in the combustion chamber.
FUTAGAWA MICHIO
TATSUMI NAOHISA
GOTO YUJI
