| 摘要 |
Screening apparatus ( 101,901 ) for use at an overflow weir ( 301, 902 ) in a sewerage system. The apparatus comprises a continuous moving screen band ( 201, 902 ) and a band cleaning mechanism ( 608 ). A first portion ( 801 ) of the screen band is configured to move along the weir towards one of its ends, and a second portion ( 803 ) of the screen band is configured to move along the weir towards its opposite end. A steeper portion ( 805 ) of the screen band extends to an elevated position ( 806 ) above the first and second portions, and the band cleaning mechanism is arranged to remove solid matter from the screen at said elevated position.
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