Features of spray dried process: The features of pressure type
spray dried method is determined by the operating principle of
pressure type atomizer. The output product after pressure type
spray dried process is porous fine particle or hollow fine
particle, which shows the features of superiors dustproof and
flowing property. Owing to its bigger contact area between itself
and surrounding water than other powder products, it shows better
wettabiliy and quicker water purifying speed.Spray granulation is
to dry polyaluminium chloride and atomize to be minute particle
simultaneously. Poly aluminium chloride is water soluble substance
and shows features of good thermal stability and high solubility
.Polyaluminium chloride solution with 40-50% solid content on
drying is introduced to high pressure pump, atomized in atomizer of
dryer to be minute fogdrop which is the dried to be granular
products. Dehydration and granulation are made simultaneously in
this proces