| 摘要 |
Filter for plastic material composed of a hollow body (2) inside which are the filtration devices (3, 4) and on which are made to rotate, by means of an externally actuated drive shaft (25), scrapers (9, 10), where said hollow body (2) is equipped with at least an inlet opening (34) upstream of the filtration devices (3, 4) for the entry of molten material to be filtered and at least an outlet opening (33) downstream of the filtration devices (3, 4) for the exit of the filtered molten material, whereby at least two of said filtration devices (3, 4) are arranged in series, in such a way that the material filtered by the first filtration device (3) meets the inlet of the second filtration device (4), and where said scrapers (9, 10) of both the first filtration device (3) and the second filtration device (4) are made to rotate by the same drive shaft (25). |
