OPERATION OF THE FREEZE DRYER
The CONRADTM
(Continuous Radiation) freeze drying plant is
fully automatic and controlled centrally.
By means of the conveyor
system the trays pass into the filling station where the frozen product is
dosed into the tray. The trays proceed through the inlet airlock and into the
inlet elevator.
When the elevator is filled to its capacity of 15 trays,
the whole stack is pushed into the first temperature zone. Subsequently, the
stack of 15 trays is pushed by the following stacks through the various zones,
each adjusted to give the product the optimal heat treatment.
Finally,
the stack arrives at the exit elevator, and the trays are led through the exit
airlock to the emptying station where the now freeze-dried product is
removed.
After being washed, the empty trays return automatically to the
filling station to repeat the process.
