| 摘要 |
A sector for a rotary disc filter has two elongate side channesl that have a generally U-shaped cross section. Each side channel defines an open trough that faces the interior of the sector. The side channels have smooth, convex shapes forming smooth, rounded side edges extending laterally along the opposite radial sides of the sector. Filter media is formed as an envelope having a shape corresponding to the sector. The envelope fits over the sector, with the filter media curving smoothly over the curved side edges of the sector. The envelope is formed by superposed layers of filter media, and the layers are secured together at mutually respective side edges thereof. The side edges are joined together by a mechanical clamp system or by a strip of polymeric material that is melted and infused into the side edges of the filter media. A clamp system on the sector bell attaches the truncated end of the filter media to the sector bell. Plow members on the radial rods of the disc filter to plow a path into the slurry being filtered to alleviate wear and tear on the leading edges of the sectors. A relatively thick, curved bar at the perimeter of the sector has arcuate, flat side plates attached thereto, and the filter media is held in place between the flat side plates and the curved bar.
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