Everything You Need to Know About Spray Drying Process

Minispray Dryer is an advanced R&D solution designed to perform the spray drying process. But before we learn about what this instrument is capable of doing, we must understand what exactly is the spray drying method.

This is a well-known process used for particle production that involves the transformation of a fluid material into dried particles. It comprises the atomization of a solution, emulsion or slurry containing one or more components of the chosen product into droplets upon spraying followed by the quick evaporation of the sprayed droplets transformed into solid powder by the application of hot air at a specific temperature and pressure.

Continue to read till the end to know more about this method and everything essential associated with it.

Brief History of Spray Drying

Spray drying is not a new method established and in fact, its earliest description can be dated back to 1860’s and with the first ever patented design found in 1872. During the 1870’s to early 1900’s, the development of spray drying techniques and equipment gained momentum.

Nozzle atomizers were the first known spray dryers that were used by introducing the rotary atomizers. It was not until 1920’s that the spray drying process was commercially used as the relatively simplistic designs of the first spray dryers along with practical challenges involved in operating them consistently limited their usage.

Spray Drying Processes Present

There are quite a few processes that are present for performing the spray drying method. In most cases, spray drying equipment takes a liquid stream and disperse the solvent into a vapour and the solute into a solid. A cyclone or drum generally collects the solid whereas the liquid input stream performs the operation of spraying into a hot vapour stream and eventually vaporises.

This results in rapid moisture leaving the droplets and by the use of a nozzle the droplets are made as small as possible, therefore, maximising the heat transfer and the water vaporisation rate as well. Typically, there are two main nozzle types – single fluid high-pressure nozzle and two-fluid nozzle.

The two-fluid nozzle operates where one fluid is the liquid which would be dried and compressed gas is the other fluid within the nozzle. Coming to the dispersers, commonly there are two types and they are single fluid high-pressure swirl nozzles and the other is rotary disk.

Minispray Dryer for Spray Drying

At BCL, we offer the advanced Minispray Dryer that is noted among the world's leading R&D solutions for spray drying. This specific instrument has an evaporation capacity of 1.0L/ h H2o, that is higher for organic solvents.

The final particle size range is 1 - 60 μm and has up to 70% yielding capacity. It is a cost-efficient spray drying solution that is ideal for the production of reproducible powder production on a laboratory scale. This gives R&D experts the flexibility to work with sample amounts as small as 5 g, therefore, saving the invaluable materials.

The high-yielding performance and low maintenance expense helps in contributing to the promise of cost-efficient performance. Check out this product at our website or get in touch with our representative for detailed information.