| 摘要 |
A method and apparatus for separating air-borne matter. The apparatus comprises an inlet (10) for air-borne material, an outlet (21) for separated product, a duct connecting said inlet to said outlet, said duct increasing in cross-sectional area away from said inlet, screen means (16) comprising at least a part of one wall of said duct, and said outlet comprising air-lock means (19). |
