The SORTICANTER is designed for the separation
of solids according to their density. The process is aided by a
carrier liquid with a spec-ific gravity that is between the den-sities
of the two solids streams to be separated.
The SORTICANTER (patented sys-tem) essentially
consistes of a cylindrical/conical bowl with a second inner cone
at the cylindrical end and a double-acting scroll matching the inner
contour of the bowl.
Bowl and scroll rotate in the same direction with
the scroll moving slightly slower than the bowl. The solids are
precut to an edge length of about 12-16 mm and mixed with the carrier
liquid in an agitated tank. A pump conveys the mixture through the
centrifuge feed pipe, the distributor and inlet ports in the scroll
body into bowl, thus accelerating it to the bowl speed.
|The centrifugal forces
cause the solids which are heavier than the carrier liquid to sediment
against the bowl wall. The scroll conveys the deposited layer of heavy
solids towards the conical bowl section over the drying zone and ejects
them through ports into the stationary solids housing and down the
The solids, which are lighter than the carrier liquid, float and
are conveyed with the liquid towards the cylindrical end of the
bowl. As soon as the floating particles have reached the second,
inner cone section of the bowl, the scroll flight, wound in the
opposite direction to those conveying sedimented solids, transfer
the lighter solids across a drying zone and through ports into a
second solids discharge chute.
The liquid phase is skimmed off and discharged under pressure by
an impeller at the cylindrical end of the bowl. After an intermediate
cleaning step it may be recycled and re-used as carrier liquid.
Carrier liquids with different densities enable the user to shift
the effective interface zone between heavier and lighter solids.
registered trademark in various countries