How Does Centrifugal Decanter Work?

A horizontal decanter centrifuge is a type of centrifuge used in various industries for separating solids from liquids in a continuous process. It operates on the principle of sedimentation, where centrifugal force is applied to a mixture of solids and liquids, causing the denser solids to settle at the bottom while the lighter liquids are displaced upwards.

Here's how it typically works:

1. Feed Introduction: The mixture of solids and liquids is introduced into the rotating bowl of the centrifuge through a feed pipe.

2. Centrifugal Separation: As the bowl rotates at high speed, centrifugal force causes the heavier solids to settle against the inner wall of the bowl, forming a solid cake layer.

3. Liquid Clarification: The clarified liquid moves towards the center of the bowl, where it is collected and discharged through an outlet.

4. Solids Discharge: The settled solids, often referred to as cake or sludge, are continuously conveyed out of the bowl by a screw conveyor or scroll that rotates at a slightly lower speed than the bowl. This conveyor typically moves the solids towards the conical end of the bowl where they are discharged.

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