EP 0873240 A2 19981028 - FILTER PRESS
Title (en)
FILTER PRESS
Title (de)
FILTERPRESSE
Title (fr)
FILTRE-PRESSE
Publication
Application
Priority
- DE 19632964 A 19960816
- EP 9704489 W 19970818
Abstract (en)
[origin: DE19632964C1] The invention concerns a filter press for the pressurized dewatering of sludges which are difficult to dewater. The filter press comprises: a plurality of pressure bodies which are disposed aligned in a row, take the form of hollow cylinders and comprise a spacing cylinder and two pressure plates disposed at both ends of the latter; a pressure chamber (16, 38) between each two adjacent pressure bodies; a cylindrical slide ring (30) per pressure chamber (12, 38), the slide rings being used to open and close the pressure chamber and each having an annular seal at both ends of the pressure body; and devices for driving the pressure bodies hydraulically in the direction of their successive arrangement. The filter press is designed such that: a frame structure with two end plates (1, 2) and tension rods (3, 4) between the latter is provided; a common hydraulic drive is provided for all the pressure bodies; each slide ring (39) is selectively provided with a separate or a common hydraulic drive for closing the associated pressure chamber, maintaining the closed position and opening the pressure chamber (16, 38); and such that each slide ring (39) comprises at least one filling opening and is axially movable such that the chamber volume can be varied.
IPC 1-7
IPC 8 full level
B01D 25/164 (2006.01); B30B 9/04 (2006.01)
CPC (source: EP)
B01D 25/164 (2013.01); B01D 25/172 (2013.01); B01D 25/287 (2013.01); B01D 25/32 (2013.01); B30B 9/045 (2013.01)
Citation (search report)
See references of WO 9806561A2
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 29615012 U1 19961205; DE 19632964 C1 19971113; EP 0873240 A2 19981028; WO 9806561 A2 19980219; WO 9806561 A3 19980402
DOCDB simple family (application)
DE 29615012 U 19960829; DE 19632964 A 19960816; EP 9704489 W 19970818; EP 97944763 A 19970818