What is the structural principle of plate-and-frame sludge filter press?

How does it work? . The filter press includes a pressure pulp distributor and two dewatering zones. Pressure mud distributor. Wastewater sludge is pumped into a high-level tank (after being mixed with polymer flocculant, tiny suspended particles in the sludge are bridged by polymer flocculant to form larger particles with rubber feathers), and then enters a wedge-shaped pressure slurry distributor with adjustable compression ratio, which is composed of upper and lower nets, a plurality of dewatering rollers and a patented sealing device. Due to the pressure caused by gravity and liquid level difference, the sludge containing a lot of water first loses more than 90% of water in this area, which increases the sludge concentration from 0.5% to more than 8%. Pressure dehydration zone. After the sludge enters the pressure dehydration zone from the slurry distributor, the upper and lower filter cloths begin to be gradually pressurized, and the sludge is squeezed and dehydrated.