Vacuum Tray Dryer

VTD is Box-shaped and loaded and unloaded via a door (two doors on the larger models). The Box closed by these doors which are lacked tightly to provide an air tight seal and connected to a vacuum pump through a condenser & receiver .At the pressure about 0.03 to 0.06 bars, vacuum box is operated. • The trays which are present in the dryer are used to dry the materials which are placed on the shelves and the pressure is decreased up to 30 to 60 kps by a vacuum pump. • The door is closed firmly and steam is passed through the space of jacket and shelves. So that the heat transfer takes place by the mechanism of conduction. • Be vacuum evaporation the water is taken out from the material at 25 - 30 @c. • Water vapor passes into the condenser and after drying vacuum line is disconnected then the materials are collected from the trays.