In a dewatering centrifuge, what effect does increased bowl speed have on cake dryness?

In a dewatering centrifuge, increased bowl speed enhances the centrifugal force acting on the slurry being processed. This increased force leads to more efficient separation of water from the solid particles. As the bowl speed rises, the solids are pushed against the wall of the bowl more forcefully, which improves the compaction of the solid particles and allows more water to be expelled.

As a result, the cake formed at the discharge end of the centrifuge becomes drier. The process is fundamentally about maximizing the removal of water content from the sludge. Higher speeds facilitate this by creating a greater difference in density between the solids and the liquid, which enhances the overall dewatering process.

This understanding clarifies why increased bowl speed results in a drier cake, as the mechanics of the centrifuge are directly tied to the effectiveness of liquid removal from the solid matrix.