The vacuum belt dryer Bucher DryBand is designed for the continuous drying of liquid and pasty as well as for free flowing granular heat sensitive products under vacuum or freeze drying conditions.
Continuous and gentle product drying
Minimal oxidation
Low energy consumption
Minimal flavour losses
Product specific feeding and discharging systems
Fully automated operation & cleaning
Malt cocoa beverages
Malt extracts
Reaction aroma and HVP's
Herbal extracts
Proteins
Fruit and vegetable concentrates
Pharmceutical concentrates
and more
The Bucher DryBand is especially suitable for products that pass a glutinous and/or highly viscous phase during the drying process and for products that are sensitive to mechanical stress.
Liquid products are uniformly distributed on the belts with swivel feeders. Free-flowing powders, granules and products of larger sizes are conveyed into a hopper on top of vacuum belt dryer. The product is fed in doses into an intermediate chamber under vacuum, from where the product will be loaded onto the top belt by a unique rotary dosing system. Liquid or pasty products are conveyed through the dryer on parallel operating belts. Solid products are transported back and forth through the dryer from the top to the bottom belt, to extend the residence time.
Heating plates underneath the belts are installed in independent heated zones to permit constant or variable drying rates. This system allows gentle continuous drying for maximum product quality. In addition, the last zone can be designed as a cooling zone if required.