Spray drying equipment design

- Apr 29, 2019-

Atomizer design and selection of spray drying equipment attribute should be selected on the basis of the liquid is dried, the particle size distribution and mass of the powder prepared were evaluated.

There are many types of dryers that can be used in this process, however, the three basic forms in this series have the same air flow and evaporation of 20 to 60 kg / h, depending on the drying temperature and presentation is appropriate Almost all industry sectors. They have proven to be ideally suited for small-scale continuous production of powders and / or special products, in which the requirements of cGMP or similar means, verification is complete.

These systems also include custom designs of plants to meet their specific specifications.

Choosing a dryer for the design of the spray drying equipment, the P-6.3 series is the smallest and can be equipped with a rotary atomizer or a two-fluid nozzle and is recommended as a "easy to dry product."

Both N-6.3-SD and SD-6.3-R are equipped with larger diameter drying chambers and are preferred products when a longer stay is required, either at the completion of the drying process or when the dust specification requires a smaller particle size Crude.


Spray drying equipment P-6.3, equipped with a nozzle or rotary atomizer, is suitable for a wide variety of dry products in the chemical, food and pharmaceutical industries, as it is relatively easy to dry, characterized by. This machine is a good alternative to the semi-industrial production of dust.


SD-6.3-N dryer, equipped with an atomizing nozzle (two-fluid nozzle or pressurized nozzle) to produce a coarse powder, free-flowing, required pressurization and processing operations in the ceramic industry, chemicals and drug.


The spray drying equipment R SD-6.3-drying chamber has a larger diameter ratio of 6.3, allowing the use of a rotary atomizer to produce either coarse or fine powder and is free flowing, in the same unit. This flexibility is achieved by adjusting the speed of the atomizer wheel.

The ability to evaporate in any machine is the ratio between the temperature of the inlet and outlet used directly, and the different elements of the mass flow of the gas within the system. The temperature of the outlet is determined by the amount of moisture present in it. Although the required values are rarely achieved, the actual values are determined on an experimental basis.

Similarly, the temperature of the inlet is also determined experimentally, however, it is required to be as high as possible to avoid degradation of the particular product. Determining these temperatures is considered essential when selecting the design of the spray drying equipment so that no inefficiency can occur.