PROBLEM TO BE SOLVED: To provide a sludge scrape-up machine constituted so as not only to certainly scrape up sludge sedimented on the bottom of a sedimentation basin but also to suppress the abrasion of the shoes arranged to the lower ends of the sludge scraping-up flights attached to a beam.;SOLUTION: The front end of a main beam 1 having a large number of the sludge scraping-up shoes 11 attached to the undersurface thereof is connected to a pin rack driver 4 performing almost rectangular motion and a rear beam 2 having sludge scraping-up flights 21 and shoes 22 attached thereto is pivotally mounted on the rear end of the main beam 1 in a swingable manner and sludge sedimented on the bottom of the sedimentation basin is scraped up in one direction by the rectangular motion of the front end of the main beam.;COPYRIGHT: (C)2002,JPO
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