an endless moving filter belt of fine mesh , woven polymeric fibers is provided through which is passed a liquid containing particles , such as from an oil cooking bath . the particles are filtered from the oil bath , and deposited on the belt . the particles are then continuously scraped off the filter belt and onto an endless moving discharge belt where they are dried and carried to waste . the filter belt is continuously flushed by hot , filtered recycle oil . the system also may be used for filtering sewage , in water clean - up , for separating water and metal particles from milling machines , etc .