Filter Cloth

Filter cloth is a critical component in industrial chemical filtration presses, designed as a porous membrane that allows liquid to pass through while retaining solid particles. It functions as the primary separation medium in pressure filtration systems, where slurry is pumped against the cloth under high pressure. The cloth's weave pattern, fiber type, and pore size distribution determine filtration efficiency, cake release characteristics, and durability in corrosive chemical environments. Proper selection ensures optimal clarity of filtrate, dry cake formation, and extended operational life in continuous processing.

Filter cloth operates on the principle of size exclusion and surface filtration. When slurry is pressurized against the cloth, liquid (filtrate) passes through the microscopic pores, while solid particles accumulate on the surface forming a filter cake. This cake subsequently acts as a secondary filtration layer, enhancing separation efficiency. The cloth's mechanical strength withstands cyclic pressure loading, while its chemical resistance prevents degradation from aggressive media. Regular cleaning cycles (often automated) remove accumulated cake to maintain permeability and prevent blinding.