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Purpose:
The rotary decanter is widely used for the treatment of urban sewage and various industrial wastewater such as papermaking,beer,leather making,and pharmaceuticals.It is used in the drainage stage to decant the treated supernatant from the surface and is a key equipment in the SBR process.
Structure and working principle
The equipment adopts a rotary and electric push rod type,installed in the reaction tank or sedimentation tank.During operation,the push rod is driven by the driving device to gradually lower the water level of the decanter at a speed(within the specified travel range),causing the weir mouth to immerse below the water surface.The supernatant flows in from the weir mouth and is collected by the collection branch pipe to the main pipe before being discharged.When stopped,the decanter is also lifted by the push rod to lift the weir mouth above the water surface,thus completing the process of decanting water.
Main features
1.The equipment has a compact structure,operates smoothly,is easy to install,and has low operating costs;
2.Has strong adaptability to changes in water quality and quantity;
3.Processing capacity Q<1000m3/h,using a single push rod,Q≥1000m3/h，Then use dual push rods;
4.A scum baffle is installed outside the weir mouth to ensure that the liquid level on the weir mouth does not fluctuate during equipment operation,and to ensure that the effluent quality is optimal;
5.The equipment is equipped with variable frequency speed regulation and PLC automatic and remote control,making operation and management convenient.