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Decanter Centrifuges The Concept |
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The
centrifuge is a rotating assembly that uses centrifugal force to separate
solids from liquids. The materials fed into the centrifuge each have different
specific gravities which allow them to "settle" concentrically
at different levels in the rotating assembly of the centrifuge. The material
with the higher specific gravity (solids) will settle on the inside wall
of the rotating assembly, while the lighter material (liquids) remain
towards the core of the rotating assembly. The internal conveyor (scroll)
which is rotating at a slightly different speed moves the settled material
up the "beach" of the conical end of the machine towards the
discharge ports. Solids are compacted and dewatered by the centrifugal
force and released through these ports. Used liquids from the process
are released at the opposite end of the machine through adjustable weir
plates.
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