| 摘要 |
PURPOSE: To provide a screw thickener for sludge, which is able to use facilities equipped at conventional sewage disposal plants, significantly increase treating amount of the sludge, and be applied to all kinds of sludges such as first sludge, remaining sludge, fermented sludge, and is relatively cheap at price. CONSTITUTION: The screw thickener comprises a drum-shaped casing (11) which includes a sludge inlet pipe (Is), a drainpipe (Ow), and a sludge outlet pipe (Os) respectively on a tip end surface thereof, one side end portion of a lower part of a circumferential side thereof, and the other side end portion of the lower part of the circumferential side thereof, a washing water pump (12) which is coupled to the tip end surface of one side of the casing, a rotary drum (13) that is rotably coupled to the inside of the casing and includes a screw (S) and a cylindrical-shaped non-woven fabric (F) closely adhered to the screw, a washing water pipe (14) which is connected with the washing water pump to be extended on the non-woven fabric and includes many washing nozzles (N), and a driving motor (15) which is connected to the other end portion of a shaft (C) extended outside of the casing, wherein the screw and the non-woven fabric are rotated at the same time with being closely adhered to each other. |
