Patents Assigned to Charbonages de France
  • Device for feeding fluidizing gas to the openings in a grid for supporting a bed of particles to be fluidized
    Patent number: 4968492
    Abstract: The device for feeding fluidizing gas to the openings (1) in a fluidizing grid (2) comprises an end piece (4) fitted on each bottom inlet (3) to each opening (1) and having a length e lying in the range between 0 and 0.5 times the diameter d of the end piece, and a cup (5a) into which the end piece extends, with the bottom (6) of the cup being at a distance i from the end piece, which distance may optionally be adjustable. The entire device is housed in a fluidizing gas feed box (5).
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: November 6, 1990
    Assignee: Charbonages de France
    Inventors: Arnaud Delebarre, Paul V. Witwicki