Available centrifuges
The generic term "centrifuge" covers a wide range
of different separator and centrifuge types that are all designed
for the separation of solids from a suspension or for the
separation of two liquids of different densities in the centrifugal
field. The combination of a separation of solids from a suspension
with the simultaneous separation of two liquids of different
densities is also possible.
Common to all the various centrifuge types is that they
all have a bowl that rotates at high speed.
An overview of the centrifuge types available at present is
given below.
Separators
A distinction is made according to the form of the bowl wall
or according to the different built in parts as follows:
Chamber-type separators, also known as toroidal chamber separators, comprise a
cylindrical bowl in which several nested concentric cylinders
are installed in order to increase their equivalent separation
surface area.
Disc type separators contain a large number of conical disks in order to increase
their equivalent separation surface area.
Disc type separators exists in different implementations regarding the discharge mechanism and the dischargement of
solids and in the way the medium is lead into the centrifugal chamber. Following separations are possible -
solid / liquid dischargement respectively liquid / liquid dischargement.
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contact
us.
Decanters
Decanters are characterised by a rotating solid wall bowl in which a screw runs at a slightly different speed to the
rotational speed of the bowl.
This design causes the solids contained in a suspension to be slung outwards in the centrifugal field against the bowl
wall where they are picked up by the screwr, transported towards the solids outlet point and continuously discharged.
There are again different types of decanter that can be roughly classified as
follows:
for solid / liquid separation.
for solid / liquid / liquid separation.
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contact us.
Other centrifuges
With this centrifuge type, the solids retained in the bowl are peeled out periodically by a pivotal peeler knife.
With this centrifuge type, the solids retained in the bowl are continuously discharged by an oscillating moving floor.
With this centrifuge type, the solids retained in the bowl are continuously discharged by a screw in the cylinder rotating at a different speed to the speed of the bowl.
With this centrifuge type, the solids retained in the bowl are gently discharged periodically by the inversion of the filter cloth.
The solids retained in the bowl here have to be discharged manually or by lifting out a filter bag.
These centrifuges have a cylindrical bowl with a generally relatively small diameter rotating at a correspondingly high speed. The precipitated solids have to be removed manually
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contact us.
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