METHOD FOR RECOVERING VALUABLE MATERIAL FROM PRINTED BOARD AND ITS EQUIPMENT

PURPOSE: To easily recover valuable material from a printed board, by heating and dropping a printer board, in a rough metal mesh cage rotated in a rotor heated at a temperature higher than or equal to a melting temperature of solder and lower than or equal to a burning temperature of the printed board. CONSTITUTION: In a cylindrical main body 1, a drum 2 for eliminating components whose drum is made of a rough metal mesh is installed. A fine mesh drum 3 for eliminating solder is installed outside the drum 2. The drums 2 and 3 are rotated by a motor 8, via a shaft 5 fixed to one disk 4, a bearing 6, a pulley 7, and a V-belt 10. By applying a current to many electric heaters 11 on the inner wall of the main body 1, the inside is heated at a temperature higher than or equal to the melting temperature of solder and lower than or equal to the burning temperature of a printed board. When a waste printed board is put in the drum 2, and the drums 2 and 3 are rotated, the printed board is moved up and down and drops from a halfway point. The solder is melted, and components pass the drum 2 and remain in the drum 3. Solder passes the drum 3 and is gathered in the main body 1. Thereby valuable material is easily recovered.