SDS SMALL SCALE SPRAY DRYERS

Spray Drying Systems, Inc. offers small scale spray drying plants which are based from two Models of fixed diameter and fixed drying airflow.  They can be used for research and development, pilot scale testing, or small scale production of spray dried powders.

Both Models are "customized" in configuration and features in each quotation to best suit the requirements of our customers.

If you would like to receive pricing, please let us know what your application and requirements are by filling out a questionnaire, available for downloading on our Contact page.

The Model 48 is the smallest unit for evaporation rates of up to 150 lb/hr.

The Model 72 spray dryer is used for evaporation rates of up to 340 lb/hr.

Evaporation rates of each Model depend upon the air temperatures used for drying and the atomization used.  The maximum particle size capability of each Model depends upon the configuration used, the height of the drying chamber, and the type of product being dried.

Variations of each small scale spray dryer include different materials of construction, atomization, drying chamber height, powder collection locations, internal finishes, air heater types, closed loop systems, etc.

Contact SDS for more information on our Small Scale Spray Dryers, and what we can do to help meet your spray dryer needs.

R&D AND PILOT SPRAY DRYERS

Small R&D spray dryers are useful for many situations and testing requirements, including feed formulation studies, producing samples for testing, and determining optimum drying conditions.

But in many cases and for many products, R&D spray dryers that are too small are not useful for producing the desired particle size, or for predicting the other physical properties that can be achieved in production scale spray dryers. This is especially true for R&D dryers using rotary atomization, as the particle size results obtained on the small atomizer cannot be duplicated in many instances by larger atomizers at the feed rates of large scale dryers. The particle size ability of small R&D dryers is typically limited to 15-30 micron maximum, as the chamber size is not large enough to allow larger droplets to dry before contacting the walls and sticking. The ability to test high air temperatures, which can significantly decrease the size and cost of a new production system, is limited. The residence time is limited, which can lead to the need for higher outlet air temperatures on the small dryer to achieve the desired powder moisture level. Bulk densities and particle strength can vary significantly from small R&D spray dryers to the production plant spray dryer.

A custom designed closed loop spray dryer for solvent evaporation using nitrogen as the process gas.