DECANTER

WS

 

Decanters in Alfa Laval’s WS range are suitable for sludge dewatering in a wide range of industrial applications, such as paint waste and surface treatment.

 

WS decanter centrifuges are efficient, simple to install, easy to maintain and straightforward to operate. Installation, operating and service life costs are minimal.
Featuring fully enclosed process sections and critical parts made of wear-resistant material, WS decanter centrifuges offer high performance with low energy consumption.

 

Benefits

 

  • Recycling of liquids
  • Reduces sludge volume, thus lowering transport and disposal costs
  • Continuous operation
  • Compact, modular design saves space
  • Low installed power reduces electricity consumption.

 

Process optimization

 

WS decanter centrifuges offer a high degree of flexibility and can be adjusted to specific requirements. The bowl speed can be varied to obtain the required G-force for optimized separation. By varying the conveying speed and the pond depth in the bowl it is possible to optimize the balance between liquid clarity and solids dryness.
WS decanter centrifuges are designed to handle a wide range of flow rates by varying the feed rates.

 

How it works

 

Separation takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The feed enters the bowl through a stationary inlet tube and is accelerated smoothly by an inlet distributor. The centrifugal force that stems from the rotation then causes sedimentation of the solids on the wall of the bowl.
The conveyor rotates in the same direction as the bowl, but at a different speed, thus moving the solids towards the conical end of the bowl. The cake leaves the bowl through the solids discharge openings into the casing. Separation takes place throughout the entire length of the cylindrical part of the bowl, and the clarified liquid leaves the bowl by flowing over adjustable plate dams into the casing.

 

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