The TALL FORM SPRAY DRYER™ (TFD) for baby food
What is a TALL FORM DRYER™?
The TALL FORM DRYER™ is a spray dryer with a tall slim drying chamber with top mounted nozzle assembly featuring a fines return capability.
The resulting powder is discharged into a VIBRO-FLUIDIZER™ for final drying and cooling, while the exhaust air is discharged through the enlarged lower cone section called a 'bustle'
The tall form spray dryer is suited for both non-fat and fat-containing products, producing non-agglomerated and agglomerated free-flowing powders including baby food.
The special air outlet further means that there is nothing inside the drying chamber, which can obstruct the air flow, like ducts etc. where powder can stick. The atomization of the feed material is always done by high pressure nozzles, which form an integrated part of the air disperser.
All flowsheet animations are available in the GEA Niro download area.
Cyclones and bag filters
All process air is passed through cyclones and/or bag filters for separation of the entrained fines powder particles. These fines are then returned to the VIBRO-FLUIDIZER™ for regular non-agglomerated powders and/or the atomization device for production of agglomerated powders.
Advantages of the TALL FORM SPRAY DRYER™
The advantage of the TALL FORM SPRAY DRYER™ is the downward drying air stream in the drying chamber, since this reduces the tendency of powder deposits on the chamber wall. The specially designed chamber cone with a "bustle" air outlet reduces the amount of fines powder particles carried along with the air into the cyclone.
On request the plant can be designed and delivered for a full manual and/or CIP™ Cleaning In Place including CIP Kitchen with tanks, pumps, valves and instrumentation.
During the years GEA Niro's TALL FORM DRYER™ has been used extensively within
the Infant Formula/ Baby Food, as well as for
whey proteins. Through the years GEA Niro has delivered more than 250 TFD plants. Many TALL FORM DRYERS™ are also used for whole milk powder, with or without the addition of sucrose.
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