| 摘要 |
PROBLEM TO BE SOLVED: To provide a water treatment device for scraping slurry on a filter surface in which a film surface of a filter bag can be prevented from occurrence of a scratch, and use cycle of a filter bag can be extended.SOLUTION: A water treatment device for scraping slurry on a filter surface comprises a treatment tank 10, a drive unit 20, a filtration water pipe 30, a filtration unit 40, an engaging unit 60, and a scraping unit 50. The treatment tank 10 includes a tank wall 11, a supply port, an exhaust port 13, and a storage space 14 surrounded by the tank wall 11. The drive unit 20 is disposed outside the treatment tank 10. The filtration water pipe 30 has a pipe wall which is connected to the drive unit 20 and is annularly provided around an axis in the storage space 14, and a plurality of open holes provided in the pipe wall. The filtration unit 40 includes a plurality of watertight layers which are laminated on a filter bag 41 on the filtration water pipe 30. The filter bag 41 is disposed vertically to an axial direction. |
