| 摘要 |
Provided is a filter material cleaning device for cleaning a filter material used for purifying a liquid, wherein the durability of the device is improved. A cleaning device (1) is provided with: an upright outer tube (2); a screw conveyor (4) that is rotatably disposed within the outer tube (2) and that is provided with a spiral blade (18) for transferring a filter material upward from the inlet (36) on the lower end of the outer tube (2) to the outlet (60) on the upper end of the outer tube (2) while rub-washing the filter material; a drive unit (6) for driving the screw conveyor (4) so as to rotate the screw conveyor (4); a control unit (30) for controlling the rotation of the drive unit (6); an introduction pipe (38) for introducing the filter material into the outer tube (2); and a discharge pipe (61) for discharging, from the outer tube (2), the filter material that was rub-washed in a filtration tank. The cleaning device (1) is also provided with: a regulating blade (19), with which the movement of the filter material in the upward direction is regulated, and which is formed on the same axis as the screw conveyor (4) around the center shaft (20) in a position that is above the outlet (60); and a cleaning water introduction hole (70), through which cleaning water is introduced, and which is disposed within the outer tube (2) in a position above that of the regulating blade (19). |
