GEA Niro fluid bed dryer
Fluid bed dryers are suited for fluid bed drying of wet powders, granules, agglomerates and pellets with an average particle size between 50 microns and 5 mm.
For the chemical industry we distinguish between two different types of fluid beds: the back mix fluid bed is used for powders that due to high moisture content are not fluidizable and the plug flow fluid bed is used for powders that are directly fluidizable. They may be either stationary or vibrating.
GEA Process Engineering offers several types of fluid beds for chemical products. They can designed for the solids flow pattern of a spray dryer, as standalone unit or combined to form specialty dryers.
Read more about GEA Niro fluid beds for the chemical industry
We determine the drying properties of your product from drying rate data, possible drying air temperature and rate, to secure the correct fluidization velocity and drying rate and heat transfer coefficient for immersed heating surfaces applying additional drying energy to the product. All the data are applied into a computer program to dimension the actual size of an industrial plant.
Each fluid bed is equipped with a tailor-made perforated plate such as the GILL-PLATE™ to distribute the drying air through the orifices –the gills – in a pattern specially designed for each product.
A GEA Niro fluid bed is very flexible and cost efficient solution with regards to both investment and operation. It is designed to meet the requirements of customers and their local authorities, and as such it is available in:
- Open, environmentally friendly plants with effective bag filters ensuring emission of clean exhaust process air
- Semi closed plants utilizing low oxygen combustion gas as process air
- Semi closed plants, self-inertised and featuring incineration of the exhaust air
- Closed cycle concept with nitrogen purged process gas circuit
All plants designed and supplied by GEA Process Engineering will enable the end user to obtain approvals put forward by the EU directive.