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How
Super Centrifuge Works
This sectional view of a Super-Centrifuge shows the application
of centrifugal force to a mixture of two immiscible liquids
containing some suspended solids.
The mixture continuously enters the Super-Centrifuge through
an inlet at the base of the machine, into the hollow cylindrical
rotor. Rotors have been engineered to turn at 17000 r.p.m. and
generate centrifugal force of upto 20000 times the force of
gravity.
This force separates the two liquids according to their specific
gravities into concentric cylindrical layers, and the solids
are deposited against the rotor wall.
The separated liquids are continuously displaced unwards by
the incoming mixture, and discharged through their respective
outlet ports at the top of the rotor. The layer of accumulated
solids that builds up on the rotor wall is cleaned out when
the centrifuge is shut down.
This particular rotor was designed to separate two liquids and
to remove suspended solids, simultaneously - and it is known
as a 'separator'.
There are, however, many applications where only the removal
of suspended solids from a single liquid is required. Super
centrifuge for such applications are provided with but one set
of discharge ports and are called 'clarifiers'.
This basic Super-Centrifuge
is employed for a surprisingly large number of industrial applications.
Applications
The Open Type
Super-Centrifuge is used, for example, in the clarification of:
Dry Cleaner's Spirit
Cider and Fruit Juices
The dehydration of Animal Fats
Water Gas Tar
Fish Oils
Ball Pen Ink
It is also used for the preparation of blood plasma, beef broth
and sugar syrups.
Can be supplied with special covers for dealing with viscous
liquids, such as:
Gum Arabic
Gum Thickeners
Chewing Gum
Wool Grease,
etc.
Materials of Construction : Numerous options are available.
If required all parts in contact with material can be of stainless
steel or monel.
For the Factory
A Super-Centrifuge with accessories such as feed and discharge
pumps, thermostatically controlled heater, in stationary or
portable execution, is a very useful unit for a modern factory
for the treatment of various industrial oils such as:
Hydraulic oil
Cutting oil
Engine test bed oil
Rolling mill lubricants
Wire drawing
lubricants
For Power Stations
Units with stainless steel bowl, special safety features such
as antiflood device and indirect heater are recommended for
modern thermal power stations for purification of turbine lubricating
oils.
For Human Blood Plasma Fractionation
Both the AS16 and AS26 size machines are ideally suited for
fractionation of Blood Plasma wherein the slightest contamination
means the loss of a complete batch. Therefore, the three piece
frame comprising the pedestal, barrel and swivel head is painted
in white to a pharmaceutical finish. Furthermore, the stainless
steel contact parts such as the bowl interior in Stainless
Steel or equivalent material, the stainless steel covers and
certain stainless steel drag components are polished to high
sanitary standards to ensure functionally satisfactory performance.
In addition, the barrel is preferably jacketted for cooling
media circulation and the pulley assembly is fitted with grease
packed bearings to ensure a clean, reliable and effective
performance.
For Pharma
& Bio-technology Applications
Both the AS16
and AS26 size machines are ideally suited for fractionation
of Blood Plasma wherein the slightest contamination means the
loss of a complete batch. Therefore, the three piece frame comprising
the pedestal, barrel and swivel head is painted in white to
a pharmaceutical finish. Furthermore, the stainless steel contact
parts such as the bowl interior in Stainless Steel or equivalent
material, the stainless steel covers and certain stainless steel
drag components are polished to high sanitary standards to ensure
functionally satisfactory performance. In addition, the barrel
is preferably jacketted for cooling media circulation and the
pulley assembly is fitted with grease packed bearings to ensure
a clean, reliable and effective performance.roduction.
For Bio-diesel
Production
Both the AS16
and AS26 size machines are ideally suited for fractionation of
Blood Plasma wherein the slightest contamination means the loss
of a complete batch. Therefore, the three piece frame comprising
the pedestal, barrel and swivel head is painted in white to a
pharmaceutical finish. Furthermore, the stainless steel contact
parts such as the bowl interior in Stainless Steel or equivalent
material, the stainless steel covers and certain stainless steel
drag components are polished to high sanitary standards to ensure
functionally satisfactory performance. In addition, the barrel
is preferably jacketted for cooling media circulation and the
pulley assembly is fitted with grease packed bearings to ensure
a clean, reliable and effective performance.roduction
The fields of
application of the Super-Centrifuge is almost unlimited. The number
of processes which involve a liquid/liquid; liquid/liquid/solid;
or liquid/solid separational steps are too numerous to describe
here. A few of the better known ones are mentioned briefly below:
Oil Purification
Literally, thousands of Super-Centrifuges are employed for the
purification of:
diesel fuel oil
diesel lubricating oil
heavy fuel oil
turbine lubricating oil
transformer oil
switch oil
In steel mills and engineering works for the purification
of:
rolling mill oil
engine test bed oil
cutting and hardening oils
grinding and drawing oils
hydraulic oils
Chemicals and Pharmaceuticals Applications here include:
clarification of caustic in Rayon Industry (Steep press liquor)
soda solution
gum clarification
blood fractionation
printing inks
virus recovery
and many special separation jobs which are often unique to each
particular process.
Food Manufacture
cider and wine clarification
soup clarification
fat clarification
fruit juice clarification
cocoa butter clarification and chocolate
chocolate scrap recovery
Paint and Varnish
Removal of
oversize pigments from paints and lacquers clarification of
varnish.
Clarification of Ink used by Newsprint Industry
Waste ink from newspapers can be reclaimed through a recovery
system comprising strainers, fitters, magnetic separators,
tanks and an AS26 tabular bowl Super Centrifuge at the heart
of the process.
With correctly selected process and machine conditions, an
acceptable clarification performance and centrate ink quality
would be obtainable also on gravure and web offset inks that
could be combined after centrifugation with fresh inks before
reuse.
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