DIAPHRAGM FILTER Russian patent published in 1995 - IPC

FIELD: filtering. SUBSTANCE: diaphragm filter consists of the top and bottom flanges provided with connecting pipes for supplying and discharging fluid to be filtered and filtrate, sealing spacers, semi-penetrable diaphragms, drain members, and flow dispensing devices. Each flow dispensing device has penetrable collector interposed between two metallic plates provided with grooves. The collector can be made up as a metallic net whose non-filtering parts are filled with a polymeric material. Each drain member is made up as metallic plates coupled in pair. The penetrable collector is interposed between the plates and is sealed over periphery by the polymeric material. Polyethylene, polypropylene or their copolymers are used as the polymeric material. EFFECT: enhanced efficiency. 4 cl, 3 dwg