The FILTERMAT® gently and evenly deposits the partly dried product onto a moving, perforated filter belt, through which the air passes as the belt is conveyed through the drying and cooling zones. This method helps to minimize the risk of lumping, smearing or deposit formation in the dryer, which may be an issue when processing sticky products using conventional spray dryers. For these types of products the FILTERMAT® can give you an improved yield, while fewer planned and unplanned stoppages for equipment cleaning also means that run times are longer, and so overall productivity is increased. The FILTERMAT® operates at lower temperatures than conventional spray dryers, which helps to preserve the structural and functional integrity and quality of heat sensitive products.
Precise control for defined powder characteristics
Each product and recipe will have an optimum set of process parameters, so the FILTERMAT® belt speed, retention time and temperature at different zones in the dryer can all be controlled to reproducibly produce powders with defined characteristics, such as moisture content, powder structure, degree of crystallisation and dispersibility.
Benefits of the FILTERMAT®
Reproducible spray drying of sticky and thermoplactic products
Gentle processing, with reduced heat impact
Precise control of powder temperature and residence time
Production of agglomerated powders without the need for powder fines recycling
Easy equipment inspection and cleaning
Less product waste
GEA gas disperser flow straightener
The FILTERMAT® features some great GEA engineering, including our compact disperser flow straightener (DFS).