| 摘要 |
1,084,380. Drying frozen materials. LEYBOLD-HOCHVAKUUM-ANLAGEN G.m.b.H. June 7, 1966 [June 6, 1965], No. 25418/66. Heading F4G. In apparatus for subjecting the moisture content in a frozen, particulate material to sublimation, the frozen material is fed into one end (5) of an elongated box-shaped vibratory chamber (1) within an evacuated drying chamber (not shown), the vibratory chamber having a heating tubular coil (4) thereabout and orifices (3) with inwardly directed edges in its upper wall for the escape of water vapour into the drying chamber. The rate of feed through the end (5) and withdrawal through the other end (6) are adjusted so that the material layer in the vibratory chamber can be controlled. A series of vibratory chambers may be utilized in a single evacuated drying chamber which are vibrated from a common drive. |
