METHOD FOR RECOVERING METAL CONTAINED IN INCINERATION ASH

摘要

PROBLEM TO BE SOLVED: To provide a method for safely recovering a metal contained in incineration ash by reducing the ash adhering to the metal. SOLUTION: The incineration ash 2 containing the metal, is melted Y1 in a melting furnace. Slag-off M1 is performed in a mold at the temperature melting Y1 together with the metal and the slag. The metal is deposited near the bottom part of the mold by slowly cooling and solidified G1 . Thereafter, this is crushed H1 . Crushed pieces are selected into the slag 5 and the metal block 6 to recover the metal.