Apparatus for supplying unclogging gas to fluidized bed apparatus
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United States of America Patent
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-
Nov 14, 1989
Grant Date -
N/A
app pub date -
Oct 21, 1986
filing date -
Oct 21, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Fluidized bed apparatus comprises a perforated grid to which fluidizing gas is fed by way of a plurality of tubes to fluidize particles supported on the grid. Each tube is connected to a respective blow opening of the grid by way of an erect tubular end part. Apparatus for supplying the openings of the grid with unclogging gas comprises a plurality of injection tubes, each arranged to extend within a corresponding tubular end part. Each injection tube has a number of lateral orifices for the passage of the unclogging gas to be supplied to the injection tube. The unclogging gas is used to disaggregate any particles accumulating in said tubular end part during stoppages in operation of the bed.
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