| 摘要 |
<p>A process for separating polymeric materials from scrap (2) involves recovering polymers with density <= 1 by stages involving mechanical separation (B), a cleaning stage (E), and at least two stages of separation by density (C,G). Also claimed is the installation for carrying out the process comprising: (a) devices for crushing (9); (b) density separation by flotation (7, 13, 34); (c) mechanical separation (6); (d) separation by flux of air (26); (e) cleaning (11); (f) mechanical separation by density (28); (g) wetting (3); (h) rinsing (12); (i) centrifuging (22, 41, 46); (j) drying (23, 42); (k) homogenising (43, 48); (l) storing (24); (m) extruding (44); (n) grading (47); and (o) bagging (49).</p> |
