Alaqua - Worldwide Provider of Evaporators Systems, Solvent Recovery Systems, Crystalizers, Heat Exchangers, Distillation Equipment, Clarifiers, and Spray Dryers  

Alaqua, Inc.
7004 Boulevard East,
Suite 28A,
Guttenberg, NJ USA 07093

Tel: 201 758 1577
Fax: 201 758 1522


If you would like to learn more about Alaqua's Evaporators Systems, Solvent Recovery Systems, Crystalizers, Heat Exchangers, Distillation Equipment, Clarifiers, and Spray Dryers, contact our office today.

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Spray Dryers

What is a Spray Dryer?

A spray dryer, as the name implies, is a device for drying, utilizing a spray.

A spray dryer mixes a heated gas with an atomized (sprayed) liquid stream within a vessel (drying chamber) to accomplish evaporation and produce a free flowing dry powder with a controlled average particle size.

The unit operation of spray drying includes the following key components:

• A method for atomizing a solution or slurry
• An air/gas heater, or a source of hot air such as a waste flue gas
• A gas/spray mixing chamber with adequate residence time and droplet trajectory distance for achieving the heat and mass transfer
• A means for recovering the solids from the gas stream
• A fan to induce the required air/gas through the spray drying system

The unique feature of a spray dryer is the surface area per unit weight generated by atomization of the liquid feed.  It is this fact that enables a spray dryer to work.  For example, feed atomized to 100 micron average droplet size generates approximately 15,400 ft²/lb of surface area.  The same feed atomized to an average of 20 micron generates approximately 77,021 ft²/lb!  This is like spreading one gallon of feed over 14 football fields!

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To learn more about our spray dryers, please contact us today.