| 摘要 |
<p>An apparatus for decomposing waste plastics, capable of minimizing the occurrence of carbon during a decomposition reaction by enabling a gasified component, which is produced from a liquid phase polymer, to be separated speedily and efficiently from the liquid phase polymer, and capable of recovering gasified component of desired molecular weight efficiently by enabling the decomposition reaction to be carried out in the condition in which the temperature of the liquid phase polymer as a whole is set uniform, whereby the decomposition of the waste plastics can be carried out at a reasonable cost. This apparatus for decomposing waste plastics comprises a decomposition chamber adapted to heat a liquid phase polymer and formed of a vertically disposed cylindrical body, and a rotary body provided in the interior of the decomposition chamber, having a shape substantially in conformity with that of an inner surface of the decomposition chamber and provided with a helical thread on an outer surface thereof, a downwardly flowing liquid phase polymer being thermally decomposed as it is scraped up and agitated by the thread in a reaction space formed between the inner surface of the decomposition chamber and an outer surface of the rotary body.</p> |
