| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a conveying equipment for polymer wastes which improves the conveying rate of the polymer wastes, can melt-decompose the polymer wastes at an economical cost and, simultaneously, reduces twining of even a paste resin around a screw conveyor in the middle of conveyance. SOLUTION: An inner pipe 5 is arranged inside an outer pipe 4 which constitutes a conveying passage and, simultaneously, a screw 3 which itself is rotatable is arranged so as to surround the outer peripheral surface of the inner pipe 5, and furthermore from the outside of the outer pipe 4, the inside of the outer pipe 4 is heated and, simultaneously, from the inside of the above inner pipe 5, the inside of the outer pipe 4 is heated, and polymer wastes having been introduced into the above outer pipe 4 from a hopper 1 is conveyed downstream with an independent rotation of the screw 3.</p> |
