SLUDGE SCRAPER FOR ARCUATE SEDIMENTATION ZONE

摘要

SUSPENDED SLUDGE SCRAPER FOR ARCUATE SEDIMENTATION ZONE Apparatus for collection and removal of settled solids from the bottom part of an arcuate sedimentation zone, comprising a scraper blade suspended by cable means from a bridge and drawn reciprocatingly and repetitively in an arcuate path around the sedimentation zone. Means are provided for shortening the suspended lengths of the cable means at the approach of the bridge to a radial end wall of the zone so that the scraper blade is drawn toward the wall for radial alignment therewith, thereby eliminating unscraped 'dead space' adjacent the end walls. S P E C I F I C A T I O N