Operation of Discontinuous Vacuum Dryers

Depending on the product characteristics, the drying is carried out at one constant heating temperature or at different temperature levels. 

The heat transfer to wet product is much better than to nearly dry (damp) powders. Hence the evaporation capacity at the beginning of the process is much higher than at the end of the drying. It is often necessary to reach a low pressure level at the end of the drying to make sure that the final moisture can be removed. 

2) Product Presentation MPE Group GmbH BOLZ-SUMMIX. Simoniusstrafie 13, D-88239 Wai en im Allgau. 

Heat up of product to the final temperature and removal of the Internal or absorbed moisture 

For the scale up of the peripheral components like vapour filter, condenser and vacuum systems, it is important to use the maximum vapour flows at dedicated pressure levels and not the average values. 

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