| 摘要 |
It comprises a vertical cylindrical chamber with a perforated wall (13) fed at its upper part by a current of air entraining the trimmings with it in a feed conduit (12), and fed at its lower part by a funnel (14) to a screw conveyor (15) via which the trimmings are compressed and discharged, the perforated part of the lateral wall (13) being contained in an outer coaxial casing (11), at the lower part of which there is an exit opening connected to an air exit conduit. <IMAGE>
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