Patent ID: 6277276
Filing Date: 2001-08-21
Classification: B01D,B03C

Abstract:
A filter apparatus comprising:a tank adapted to receive a contaminated liquid to be filtered, said liquid containing ferrous metal particles to be removed;a vacuum box at the bottom of said tank having a wall section having distributed openings allowing outflow of liquid from said tank;an elongated sheet filter media arranged to be advanced through said tank so as to have a section overlying said vacuum box wall section, liquid outflow passing through said filter media section to be filtered thereby;an indexing drive for periodically advancing said filter media to bring a fresh section over said vacuum box;a series of permanently magnetized bars arranged side by side with intervening spaces therebetween, said bars interconnected together to form a train of magnetized bars extending about a closed path disposed at least partly within said tank, with a section thereof lying over said filter media section overlying said vacuum box wall section;a scraper station located along said path of said train of magnetized bars, having a scraper mechanism for scraping one or more bars in said scraper station.