| 摘要 |
<p>A filter device for separating solid material waste from thermoplastic material is proposed, in which radially outwardly widening filter holes (15) are provided in a uniformly hollow-cylindrical filter element (9). Resilient scrapers (21) of a rotating scraper shaft (19) bear against the inner convex surface of the filter element (9). The filter element (9) is supported radially outwards by means of a supporting tube (11) in a cylindrical chamber (5) of a housing tube (7). The supporting tube contains inner grooves (27), which helically surround the filter element (9) and merge at the overlapping points into axially running, outer grooves (29).</p> |
