| 摘要 |
A rotary disc filtration apparatus, for filtering liquids containing solid particles, comprises a vessel (2) which defines an internal surface (13), at least one inlet opening (23) for the liquid to be filtered and one outlet opening for the filtered liquid, at least one pair of coaxial filter discs (5), substantially plane, axially spaced, rotatably mounted in the vessel, each of the filter discs (5) having a peripheral edge (8) co-operating with a least a part of the internal vessel surface (13) to define together with the latter a filtering chamber (14). Each filter disc (5) is supported peripherally on the internal side of the vessel with no central supporting part. Each filter disc (5) comprises an annular frame (7) on which the filtering surface (10) is fixed in such a way to cover completely and continuously the internal surface of the frame. The apparatus allows the disassembling of each single filtering disc. Moreover it allows the installation of driving means with lower power compared with filtering apparatuses having axial drive.
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