| 摘要 |
<p>Plant (10) and method for processing heterogeneous plastic materials arriving from waste recycling, to obtain a plastic article (16). The plant (10) comprises a pre- processing unit (11) which receives the waste at inlet and subjects it to at least a grinding and screening process, in order to provide at outlet a mass of heterogeneous plastic materials of a size of not more than about 30 mm and with inside it a percentage in weight of non-plastic materials not more than about 10%, and a mixing and plasticization unit (12) comprising an extrusion unit (31, 32) into which the mass of heterogeneous plastic materials, arriving from the pre-processing unit (11), is fed in order to obtain a heterogeneous plastic mixture. With the extrusion unit (31, 32) degassing devices (34) are associated, in order to perform a strong degassing of the plastic mixture, at least during the extrusion.</p> |
