Vacuum chamber and method of creating a vacuum

Details Vacuum chamber and method of creating a vacuum Vacuum chamber and method of creating a vacuum

C - Chemistry, Metallurgy

10

B

34/2, 196/30

C10B 53/06 (2006.01) B01J 3/00 (2006.01) B01J 19/28 (2006.01) C10B 1/10 (2006.01) C10G 1/02 (2006.01) F26B 5/06 (2006.01) F26B 11/04 (2006.01)

Patent

CA 1178911

VACUUM CHAMBER AND METHOD OF CREATING A VACUUM ABSTRACT OF THE DISCLOSURE The invention relates to large vacuum chamber which have heretofor been limited to relatively small diameters because of potential collaps form the pressure differential. The vacuum chamber (10) includes an airtight generally cylindrical wall (11) and a pair of end members (20,21). Vacuum pumps (60) in the chamber evacuate the chamber. The chamber is rotated along the longitudinal axis whereby the centrifugal force of the rotating cylindrical wall acts against the force resulting from the pressure differential between the inside of the evaluated chamber and ambient pressure on the outside of the cylindrical wall to prevent the cylindrical wall from collapsing. An inner member (30) is mounted in the chamber, but the chamber rotates with respect to the inner member In a low temperature embodiment for freeze drying, refrigerated air cools the outside of the chamber to reduce the temperature within the chamber. The consensables condense on the inside of the cold cylindrical wall. lathe (120) adjacent the inside of the cylindrical wall moves along the length of the cylindrical wall as the wall passes thereover upon rotation of the chamber for removing excess ice from the inside of the cylindrical wall. A higher temperature embodiment for hydrocarbon pyrolysis is also disclosed. Shale is fed into bins, is heated, and vapors condense on the chamber wall where they form a liquid from which is pumped through the chamber by centrifugal force of the rotating chamber.

393049

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