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3.6. Sludge Extractor  Pic. 10 Sludge Extractor The Extractor is a small collapsible scraper used to extract and liquefy sludge from big tanks (over 50,000 m3). It is carried into the tank through manhole (500 mm) as several light and easy to assemble pieces. The heaviest part is 30 kg. Extractor re-assembled inside the tank (2 hrs.) and hydraulically powered by MegaMacs’ unit. Two independently powered track drives are used to propel and maneuver the unit around the tanks interior. A powerful hydraulically driven scraper arm excavates the sludge and draws it into the machine intake; helical screw moves it to the build in screw pump where it is slurried with water prior to being pumped from the tank. When properly operated, unit can excavate, slurry, and pump up to 500’ (150 m) approximately 15 tons of heaviest sludge per hour. Just one driver/operator required inside the tank to operate extractor limiting liability exposure to the minimum.  |