Improving flow characteristics of sedimented sludge - by vibrations directed vertically downwards from revolving scraper arms

摘要

To improve the transporting qualities of a mixt. of solid matter and fluids in a settling tank with scraper-cleaners, the mixt. is loosened up by the generation of vibrations having an amplitude of 0.5 to 5 mm at a frequency of 10 to 100 Herz, in the zone of, and opt. with help from, the scrapers. Improves the flow characteristics of the sludge so that it can be moved towards the outlet without the consumption of large amts. of power and expensive scraping equipment.