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SALIENT
FEATURES
Continuous
Solid -Liquid Separation
Solids are continuously separated from the liquid phase by the
application of centrifugal force ranging up to 3000 times the
force of gravity, efficiently and economically.
Its Sailent
innovative features are:
Extremely
flexible Separational tool
Applications are wide ranging and encompass:
Clarification of liquids
Dewatering or deliquoring of solids
Thickening or concentration of solids
Classification of solids suspended in liquid
Handling a wide range of solid particles sizes from 5mm down
to few microns
Handling slurries
with a solid content from as low as 0.5% to as high as
65% w/w.
Economical Operation
Pennwalt DeCanter Centrifuge, has polymiser features, wherein
the feed zone & conveyor flights are modified to reduce the
floc breakage and conveyor turbulence in the pool. These features
result in considerably reduced dose of polymeric floccnlants.
In addtion there is economy of space,power and labour required
in the decanter.
 Stainless
Steel Construction designed
to resist corrosion
Carbon Steel corrodes, leading to unbalance, high maintenance
costs, long downtimes. Therefore the principle elements and
stressed rotating components of Pennwalt
Decanter Centrifuge are machined from quality
centrifugally cast Stainless Steel.
Designed to resist
abrasion
Sintered Tungsten Carbide Tiles positioned on the flights
of the Pennwalt
Decanter Centrifuge scroll (conveyor)outlast conventional
hard surfacing systems many times over in any environment
 
BD Feature
This makes slimy and gelatinous sludges SCROLLABLE. The BD
feature allows the Super-D-Canter to operate at Ultra-Deep
pond settings that compacts the solids and creates a hydrodynamic
buoyancy that assists the scroll during the discharge of the
slimy sludge.
Sterile
Features
For pharmaceutical and food industries, the Pennwalt Decanter
Centrifuge can be made with sterile features and a clean-in-place
facility.
Four crucial factors govern the performance of Pennwalt
Decanter centrifuges.
Centrifugal
force required to sediment the solids.
Clarification
necessary to 'capture' the solids,obtained by appropriate setting
of the pool depth.
Differentail
speed setting, between the bowl and scroll, to convey the solids
and obtain appropriately low cake moistures.
Hydrodynamic
design to minimise turbulence.
In specifying a Decanter centrifuge, for a particular application,
Pennwalt considers other design features such as :
The pitch of
the conveyor
Feed zone design
Beach angle
Bowl surface
Abrasion resistance
Material of
construction
Sedimentation
enhancing features
The Correct combination of such features ensures the desired
performance at minimum cost.
Operation at High 'G' force is an inherent design feature of
the Pennwalt Super-D-Canter and provides flexibility to the
user. The centrifuge can be operated at an optimum speed to
suit the particular application.The Decanter can be operated
at low, intermediate or high speed without the constraints of
mechanical design, which can be optimised and tailored to suit
each application.
1) Stressed rotating components are precision machined from
centrifugally cast stainless steel.
2) High strength, high capacity epicyclic gearbox is designed
exclusively for Pennwalt Decanter Centrifuge.
3) 360 degree solids discharge giving unrestricted solids
exit coupled with high capacity with Full abrasion protection
using sintered tungsten carbide shields.
4) Gearbox overload protection either by clutch or torque
arm which can be easily reset without the need for shear pins.
The flexibility of Super-D-Canter design has proved effective
in a wide range of applications in the Processing Industry.
From the separation of dilute suspensions of low solids content
to the dewatering and concentration of thick slurries containing
large quantities of solids, the Super-D-Canter has attained
a pre-eminent position in the area of solid-liquid separation
technology.
Following is a selected list of applications successfully
performed by the Pennwalt Super-D-Canter.
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