Filter press for filtering suspensions especially sewage sludge

摘要

Suspensions are filtered using a filter press with filter plates between support plate and pressure plate. Each filter plate (4) has a filter cloth (8) on the liq. discharge side which runs over two rollers (6,7), which are arranged either side of the single-layer cloth. The cloth forms an S-shape over the rollers and is fastened to the plate at top and bottom. The rollers are provided with a lifting device to move them vertically w.r.t. the bottom. The rollers are provided with a lifting device to move them vertically w.r.t. the cloth. The rollers may be combined in a movable block. The upper end of the cloth is held by a tensioning device (9). Spray nozzles may be provided in the block.