Patent ID: 9046303
Filing Date: 2015-06-02
Classification: F26B

Abstract:
1. A freeze-drying apparatus is characterized in that the said freeze-drying apparatus includes a reduced pressure tank in which a far infrared heater is disposed along a sidewall, or the sidewall and a ceiling; a container carrier which conveys a plurality of containers to contain mounted objects to be dried into the reduced pressure tank, and supports the containers in a drying step; the containers having a high absorption power of radiant heat and mounted via a space in multistage of the container carrier; the frozen objects to be dried which are contained in the containers; a tray support member of the container carrier in which the respective containers containing the frozen objects to be dried are vertically arranged via the space on multistage so that the containers are evenly irradiated with heat radiated from the far infrared heater and in which the containers mounted on the respective stages are tilted at the same angle or at such angles that the containers are evenly irradiated with the radiated heat; and inside the reduced pressure tank, a control section including a heating temperature detecting section and a pressure detecting section is arranged in order to sublimate the objects to be dried in the reduced pressure state where the sublimation of the objects to be dried occurs in the reduced pressure tank; and outside the reduced pressure tank, a heating temperature control section of the far infrared heater to the containers and a pressure control section which controls the pressure inside the tank are arranged.