Filter Press

In the conventional plate-and-frame filter press, as shown in Fig.(7), a sequence of perforated square or rectangular plates alternating with hollow frames is mounted on suitable supports and pressed together with hydraulic or screw driven rams. The plates are covered with a filter cloth and the cloth also forms the sealing gasket. The slurry is pumped into the frames and the filtrate is drained from the plates. The plate surfaces are usually made in the form of raised cylinders, square-shaped pyramids or parallel grooves.