We have already mentioned the reasons for the difference in the design of medical freeze dryers and food freeze dryers. The reasons for the differences in the design of food freeze dryers and medical freeze dryers are discussed in this article. The differences between the two in automatic loading and unloading devices are sorted out. In order to reduce the pollution of the products caused by manual operation, the medical freeze dryer has developed a device for automatic mechanical loading and unloading of products, but this is not necessary, so most medical freeze dryers do not have this function at present.
For food freeze dryers without pre-freezing function that are pre-frozen outside the drying box, the pre-frozen products must be loaded into the freeze-drying machine in a very short period of time to avoid melting during the packing process. Unload the drying box and transfer it to a dry storage room and packaging room to prevent the dry products from absorbing moisture.
Moreover, the food freeze dryer has a large tray area, so it is necessary to use mechanical loading and unloading facilities for products, and in the design of the interior of the drying box, the design of the passage between the low temperature freezer-drying box-storage room-packaging room Appropriate consideration and arrangements must be made.
