Sludge filtration apparatus having chain-type belt press with fine fibers of synthetic resin joined thereon

A sludge filtration apparatus having chain type belt press with fine fibers of synthetic resin joined thereon, said apparatus comprising:

• a frame (1);
• a filtering belt for receiving and carrying the sludge supplied by the sludge supplier;
• a driving roller (40) fixed on the frame for driving the filtering belt wound therearound;
• a tension controlling means (41, 54) fixed on the frame for controlling the tension of the filtering belt out of the closed casing of the apparatus;
• and
• guide rollers (42, 43) fixed on the frame for guide the filtering belt wound therearound;
• wherein said sludge filtering apparatus further comprising a pressing belt (50) for pressing the sludge on and with the filtering belt to make the sludge into the sludge cake, said pressing belt (50) being driven by a driving roller (44) and pressed by plural of compressing rollers (51);
• wherein said filtering belt includes:
• a chain (20) being engaged with plural of sprockets (40a, 41a, 42a, 43a) of the driving roller (40), the tension controlling roller (41) and the guide rollers (42, 43);
• and
• a water absorbing and filtering portion (34) fixed on the chain (20) for filtering the sludge and absorbing water contained in it;
• wherein said absorbing and filtering portion (34) includes;
• filtering units (33), each of them having the chemical resistant fine fibers (30) of synthetic resin in a predetermined width and thickness, a binding rod (31) for holding the fine fibers (30) by binding together the ends of fibers (30) therearound, and a holding piece (32) for fitting detachably the binding rod (31) therein;
• elongate grooves (12) each of them having triangle shape in cross section for fitting detachably the holding piece (32) therein;
• and
• support plates (10), each of them formed integrally with the elongate groove (12) for supporting the fine fibers (30) thereon, said each of support plates (10) extending horizontally from both sides of the upper ends of the elongate grooves (12) and having plural of water passing holes (11) for passing water extracted from the fine fibers (30).