Wet Granulation | Glatt FB Dryer
The technique we are introducing to you here is a fluid bed agglomeration route whereby powders and liquids are brought together by the use of swirling warm air. A liquid (binder) is sprayed into the particles moving around in the fluid bed and these will start sticking together. By drying with warm air the liquid bridges between the individual particles will harden and that is how cohesive agglomerates are built. Granules produced in this manner will have a more open and more porous structure than other granules.
The Glatt Fluid bed dryer is a versatile machine that is part of the batch agglomeration unit in Crewe (UK). Our Glatt is designed to process about 200 litres per batch. It is designed to dry and to agglomerate and with this type of machine the liquid is dosed into the machine from the top.
The equipment can be easily combined with agglomerators like the Henschell or the extruder where preprocessed granules require drying.In comparison to the Hüttlin, which is also a fluid bed dryer, this piece of equipment is a little bit less versatile but its advantage is that it is smaller.
Are you interested in an agglomeration process that requires fast drying and a uniform reproducible product?
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Wet Granulation | Glatt FB Dryer
Fluid bed agglomeration granules are built up out of individual dry particles by sticking these together with liquid (binder). Granules produced via this route normally have a relatively low density and a fairly open and porous structure. This makes this route very suitable for applications where the solubility and dispersability are very important.
The Glatt is a versatile fluid bed dryer that not only can be used on its own but also in combination with other processes. This flexibility makes it very suitable for a number of applications. The machine is suitable for the processing of 200 litre batches and therefore is also suitable for smaller campaigns.
The core possibilities of the machine are in drying and agglomerating a wide range of different products. It is designed to dry in a quick, careful and uniform manner. By means of a spray head, the dryer changes from a dryer into an efficient agglomerator for the production of homogenous granules.
Fluid bed drying
Fluid bed drying is a very effective way to dry solids with the advantage that it happens fast, efficiently and with the necessary care for the agglomerates [See powders & Granules Drying]. Coating:
This is where a uniform layer is put onto individual particles. The chosen coating will influence the product characteristics for example, this can prevent particles from absorbing moisture.
Combinations:
This technique can also be used in combination with for example pre-agglomeration techniques whereby the wet granules are fed directly to the dryer where they are dried or processed or whereby the material from the fluid bed is fed directly to a sieve or other type of process.The machine is completely stainless steel and lives up to the GMP Food standards. Typically the machine is designed to produce a couple of hundreds of kilos per hour.
We also have available a lab size piece of equipment from the same brand. This is a so called Uni-Glatt Fluid bed Dryer from about 1 litre. With this machine we can test for you on lab-scale in order to decide if this route might lead to the desired end-product. As you can see this machine has a number of specialist applications. If you have any specific questions or remarks then we are more than happy to discuss these in more detail with you. We look forward to hearing from you.