| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve a problem that the plastic is fused to the inside wall of a cylindrical body of a heating device and a transporting passage to affect adversely the heating effect at the time of heating the plastic or waste containing the plastic. SOLUTION: In the case of reducing the volume of a material to be treated in a carbonizing furnace 20, a material to be treated, which has an aluminum member, is mixed with the material to be treated. The aluminum member separated by heating acts as fusion preventing material and the residue after heating is introduced into an aluminum sorting means 34 to sort and recover the aluminum member.</p> |
