The centrifuge is for continuous separation of solids from liquids Such as thickening
and dewatering sludge,suspensions with granular solids,clarification of liquids,
classification of fine pigments,etc.
Stock liquid is brought into the bowl through a centripetal pump.
Stock liquid is brought into the bowl through a centripetal pump.
Solid matter settles into outer larger by the centrifugal force.The settled sediment is
pushed into the drying area at the cone of the bowl by rotary difference between
spiral and bowl and discharged from the outlet.The clarified liquid flows out from
the liquid outlet centripetal pump.The decanter centrifuge is a specially developed
continuous Solid-Bowl horizontal Scroll Discharge centrifuge for effective
separation of slurries into liquid-solid phases/liquid- liquid-solid phases,
with the application of centrifugal sedimentation principle.
A decanter centrifuge separates solids from one or two liquid phases in one
single continuous process. This is done using
centrifugal forces that can be well beyond 3000 times greater than gravity.
centrifugal forces that can be well beyond 3000 times greater than gravity.
When subject to such forces, the denser solid particles are pressed outwards
against the rotating bowl wall,while the less dense liquid phaseforms a concentric
inner layer. Different dam plates are used to vary the depth of the liquid the
so called pond as required.The sediment formed by the solid particles
is continuously removed by the screw conveyor,which rotates at a different speed
than the bowl. As a result, the solids are gradually "ploughed"
out of the pond and up the conical beach.The centrifugal force compacts the solids
out of the pond and up the conical beach.The centrifugal force compacts the solids
and expels the surplus liquid. The dried solids then discharge from the bowl.
The clarified liquid phase or phases overflow the dam plates situated at the
opposite end of the bowl. Baffles within the centrifuge casing direct the separated
phases into the correct flow path and prevent any risk of cross-contamination.
The speed of the screw conveyor may be automatically adjusted by use of the
variable frequency drive in order to adjust.

