| 摘要 |
Filtration apparatus comprising a first elongate container (1) having a firs t auger(5) which is rotatable about an inclined axis and a stationary trough- shaped filter screen (3) shaped to be adjacent to lower peripheral region of the first auger. An inlet (13) for a flowable material to be filtered is provided at a level above the filter screen (3) and a first outlet (15) for filtered liquid is provided at a level below the filter screen (3). The firs t auger (5) is rotatable so as to urge components of the flowable material alo ng the filter screen (3) from a lower end towards an upper end of the first auger. A second outlet for solid material filtered out of the flowable material is located in the region of the upper end of the first auger (5). T he apparatus includes a second elongate container (19) having a second elongate container, the second auger being rotatable about an inclined axis. The seco nd auger is adapted to receive at the lower end thereof the solid material from the second outlet of the first container (1), to compact the solid material and to discharge the compacted solid material from the upper end thereof.</S DOAB>
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