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There are several types of spray dryer nozzles:
Spray dryer nozzles mainly include centrifugal, compressed gas
atomization, electrospray, vortex and other types.
Centrifugal nozzles produce atomization effects through centrifugal
force and are suitable for spraying materials with high water
content. Compressed gas atomization nozzles use compressed gas to
atomize materials, and the spray effect is very fine, but an
external compressed gas source is required. Electrospray nozzles
break down liquids into tiny particles through electric field force
and spray them out through high-speed airflow. The spray effect is
also very fine, but the price is relatively high and a stable power
supply is required. Vortex nozzles are designed with optimized
structure to form a vortex spray, which can reduce the size and
splash of droplets and are suitable for spraying agents of
different viscosities. Other types include nozzles with
multi-layer belt type, multi-stage type and other structural forms,
as well as high-speed centrifugal atomization, pressure type and
other nozzles classified according to the atomization type. These
nozzle types have their own characteristics and are suitable for
different materials and drying needs. Choosing the right nozzle
type requires considering the nature of the material, the required
particle size and distribution, and the specific design and
application of the dryer.
Equipment Pictures: