Freeze-drying method and freeze-drying apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 5, 2013
Grant Date -
Jan 27, 2011
app pub date -
Mar 19, 2008
filing date -
Mar 19, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A material to be dried is frozen and is efficiently freeze-dried in a short time, thereby increasing production efficiency. A freeze-drying apparatus includes a vertical tube (2) having an inner circumferential surface formed with a frozen surface (2a), a liquid-supply device (5) for supplying a liquid material to be dried (47) onto the frozen surface (2a), a freezing device (10) arranged around the vertical tube (2) and intended for cooling the frozen surface (2a), a pressure-reduction device (12) which puts an interior area of the vertical tube (2) into a state of vacuum, and an internal heating device (41) in the vertical tube (2). The internal heating device (41) is arranged in the vertical tube (2) along a center axis thereof, and has an outer surface formed with a vertically long circular-cylindrical radiation surface (43). The liquid material to be dried (47) supplied from the liquid-supply device (5) is sprinkled onto the frozen surface (2a), and the frozen surface (2a) is cooled to freeze the dried material (47) into a shape of a pipe. Then, the interior area of the vertical tube (2) is pressure-reduced to supply radiation heat from the internal heating device (41) to the dried material (47) for freeze-drying the dried material (47).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully