Patent Number: 7,785,475

Title: Magnetic separation purifying apparatus and magnetic separation purifying method

Abstract: A magnetic separation purifying apparatus includes a cylindrical-shaped sludge recovery rotating body rotating to place sludge and a magnetic substance on a surface thereof to convey the same; a magnetic rotating body, which has an axis in the sludge recovery rotating body and includes a rotating body and a plurality of magnets mounted on its circumference, at least a side of which is arranged close to an inner peripheral surface of the sludge recovery rotating body, by which a magnetic substance is magnetically attracted to a surface of the sludge recovery rotating body whereby sludge is transported onto the surface of the sludge recovery rotating body; and a scraping device that scrapes sludge and a magnetic substance being transported on the surface of the sludge recovery rotating body.

Inventors: Saho; Norihide (Tsuchiura, JP), Isogami; Hisashi (Ushiku, JP), Mizumori; Takashi (Kasama, JP), Mochizuki; Akira (Mito, JP), Harada; Susumu (Hiratsuka, JP)

Assignee: Hitachi, Ltd.

International Classification: C02F 1/44 (20060101)

Expiration Date: 8/31/12018