| 摘要 |
A membrane vent filter cartridge combined with a pneumatic particle conveying system for keeping dust of noxious or dirty particles inside the system while air flow into and out of the system is filtered. A porous polymer membrane (3), especially of expanded polytetrafluoroethylene, backed by non-woven textile fibers (4) and an apertured support screen (5) effectively filter out dust of toners, pigments, noxious chemicals and the like. |
