| Spray Dryers.... |
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...Spray
Dryer... |
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Atomization
is fundamental to Spray drying
- nearly all operating and product characteristics are
affected by it. To atomize the feed solution or slurry,
high shear forces are applied by one of the following
methods: |
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Centrifugal- accelerating the liquid off the edge
of a spinning wheel. |
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Pressure Nozzle - Spinning the liquid at high velocity
through a small orifice. |
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Pneumatic Nozzle - Impinging a high velocity air
stream on a slow moving liquid |
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Advantages
of spray dryers |
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KILBURN
TOWER SPRAY DRYER |
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These versatile tower spray dryers
are used for efficient drying of inorganics, catalysts,
ceramics, powdered metals, pigments, dyes and similar
materials. The maximum air temperature is 530 Degree Celsius when
using a direct-fired gas heater. Evaporation capacity varies
depending on the inlet
/outlet air temperature profile and composition of
the feed. The units employ cocurrent or mixed flow
(counter-current) drying principle in an "open
cycle" concept.
Atomization
is performed by either single -fluid or two-fluid nozzles
located at the top or bottom of the tower. Particle size
obtained ranges upto 170 microns depending on feed composition
and operating parameters. The unit is constructed out
of stainless steel. Product is collected at two points-chamber
bottom & cyclone collector. |
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