Water device, also known as water decanter, is an important equipment of SBR, due to various SBR method is adopt cycle drainage, drainage in the pool when the water level is changing, in order to ensure the drainage not disturbance in the pool when the water layer, make the discharge that is always located at the top of the supernatant fluid, which requires the use of a kind of energy with the water level change and adjust the water weir, namely skimming the water.
Rotary skimmer is developed by jinyuan group on the basis of digestion technology from abroad. It is specially designed for sequential batch biological treatment system and has good hydraulic and mechanical properties. It is a key equipment for the circulating activated sludge process that the water flow into the effluent weir is laminar flow, the skimming speed is stable and adjustable, and the effluent is kept constant.
The rotary skimmer converts the straight up and down motion of the screw into the rotary motion of the weir and drainage branch pipe through the drive device and the four-link mechanism to skim off the supernatant. Meanwhile level synchronization, then buoy slag device in the water in front of the weir crest, underwater, and on both sides to form a water area without dross, can automatically adjust the buoy floating in the water and the distance between weir crest.