Patent ID: 6241101
Filing Date: 2001-06-05
Classification: B01D

Abstract:
Installation for separating and purifying solids from a suspension and/or for leaching out solid particles, comprising:a cylinder (22) having a piston (23) which is movable therein and which has a sealing part (24) which bears against an interior wall of the cylinder to provide a seal,a filter (27) connected to the piston and which delimits a washing column chamber (28) located above the filter in the cylinder,a feed line (33) for feeding the suspension of the solid particles to the cylinder and a discharge line (35) for discharging the liquid from the washing column chamber after filtering through the filter, wherein:the piston and the cylinder delimit a pumping chamber (30) located below the piston and into which the feed line opens,the filter is spaced in the axial direction from the sealing part of the piston so that a discharge chamber (29) in the cylinder is delimited by the cylinder wall, the filter and the piston,at least one closeable connecting channel (26;50) connects the pumping chamber and the washing column chamber, andthe feed and discharge lines are at least virtually stationary with respect to the cylinder.