Global Patent Index - EP 0979214 A1

EP 0979214 A1 20000216 - DEVICE FOR DEWATERING A SLURRY

Title (en)

DEVICE FOR DEWATERING A SLURRY

Title (de)

VORRICHTUNG ZUR SCHLAMMENTWÄSSERUNG

Title (fr)

DISPOSITIF DE DESHYDRATATION DES BOUES

Publication

EP 0979214 A1 (EN)

Application

EP 98920772 A

Priority

  • SE 9800731 W
  • SE 9701633 A

Abstract (en)

[origin: WO9849107A1] A device for dewatering sludge comprises a plurality of screening means (11) that are located at different levels, said screening means comprising hole-provided tube pieces which communicate with a common manifold (12) and through which water may pass in a direction from the outside and inwards, without the solid constituents of the sludge being carried along by the water. When necessary, the screening means may be back-flushed in order to keep them clean, shut-off valves (24) acting between the differently high situated screening means with the purpose of individually interrupting the communication between the manifold (12) and the screening means (11) that land(s) up above the surface (9) of the slurry (8), according as its level sinks during a dewatering operation.

IPC 1-7

C02F 11/12; B01D 29/50

IPC 8 full level

B01D 29/15 (2006.01); B01D 35/16 (2006.01); C02F 9/00 (2006.01); C02F 11/12 (2006.01)

CPC (source: EP)

B01D 29/15 (2013.01); B01D 29/48 (2013.01); B01D 29/52 (2013.01); B01D 29/92 (2013.01); B01D 29/96 (2013.01); B01D 35/16 (2013.01); C02F 11/12 (2013.01); B01D 2201/0469 (2013.01); B01D 2201/188 (2013.01); B01D 2201/26 (2013.01); B01D 2201/265 (2013.01); C02F 2201/008 (2013.01)

Citation (search report)

See references of WO 9849107A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT

DOCDB simple family (publication)

WO 9849107 A1 19981105; AU 7353698 A 19981124; EP 0979214 A1 20000216; NO 319482 B1 20050822; NO 995186 D0 19991025; NO 995186 L 19991125; SE 509090 C2 19981207; SE 9701633 D0 19970429; SE 9701633 L 19981030

DOCDB simple family (application)

SE 9800731 W 19980422; AU 7353698 A 19980422; EP 98920772 A 19980422; NO 995186 A 19991025; SE 9701633 A 19970429