| 摘要 |
<p>Component regulating materials are added to incineration residue containing salts for regulation to within a component ratio range of 0.7 to 2.0 which is to be determined by (Ca + Mg)/(Si + Al). The component-ratio-regulated incineration residue is charged into a melting furnace kept in a reducing atmosphere to form molten substances which are separated into a molten slag layer, a molten salt layer and a molten metal layer. The molten slag is classified and discharged from the melting furnace for quenching after discharged. With a vapor phase portion in the melting furnace kept at 700 to 1000 °C, non-oxidizing gas is blown into the vapor phase portion to increase an exhaust gas amount from the melting furnace.</p> |
