This aircraft is suitable or sets upright the class type sedimentation pond in the central non-rest pier’s spoke class type(∮<15m) a machinery row of putty. This machine is equipped with stretches across the pool the stationary platform, when the work its complete machine load to affect in the work bridge center. The sewage flows to the pond evenly after the pond center conduction current tube all around, along with speed of flow reduction, in the sewage suspended matter will precipitate Yu Chide, the pond bottom mud scraper will precipitate the sludge to blow the collection to the central morass, will discharge depending on the hydrostatic pressure it from the sludge pipe.