Title:
汚泥、水域などの沈殿物、特に下水処理場の余剰汚泥の濃集ないし脱水用の装置
Document Type and Number:
Japanese Patent JP2004530553
Kind Code:
A
Abstract:
A device for thickening or dehydrating sludges, sediments from waters or the like, particularly excess sludges in sewage treatment plants, having the following features: a double-start threaded or multiple-start threaded eccentric screw pump having a pump shaft at one end and a suction duct connection for thin sludge at the other end, a drive mechanism coupled to the driving shaft, a feeding means arranged between the eccentric screw pump and the drive mechanism which is driven by the drive mechanism and is arranged in an elongate casing which is extended through by the pump shaft, with a separating device being provided in the form of a cylindrical-shaped screen in the casing to separate the sludge and liquid, a filtrate discharge outlet at the upstream side of the cylindrical-shaped screen and a thickened-sludge discharge outlet at the downstream side of the cylindrical-shaped screen, a flocculant supply device which is connected to the suction duct connection of the eccentric screw pump and/or the area which connects between the eccentric screw pump and the cylindrical-shaped screen, wherein the cylindrical-shaped screen is rotatably supported about its axis and is adapted to be rotatingly driven by the drive mechanism, and wherein the cylindrical-shaped screen has feeding elements on the inside wall to deliver the sludge towards the thickened-sludge discharge outlet.
Inventors:
Kuhn, Holst
Stephen, Claudia
Stephen, Claudia
Application Number:
JP2003506812A
Publication Date:
October 07, 2004
Filing Date:
June 17, 2002
Export Citation:
Assignee:
Kuen Umberto Prodocte Gamebha
International Classes:
B01D29/66; B01D29/90; B30B9/12; C02F11/12; B01D29/25; F04C2/107; F04C11/00; (IPC1-7): C02F11/12; B01D29/25; B01D29/66; B01D29/90
Attorney, Agent or Firm:
Tsutomu Sugiya