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Title: METHOD FOR SENSING DEGREE OF FLUIDIZATION IN FLUIDIZED BED

A method is given for detecting, indicating, and controlling the degree of fluidization in a fluid-bed reactor into which powdered material is fed. The method comprises admitting of gas into the reactor, inserting a springsupported rod into the powder bed of the reactor, exciting the rod to vibrate at its resonant frequency, deriving a signal responsive to the amplitude of vibi-ation of the rod and spring, the signal being directiy proportional to the rate of flow of the gas through the reactor, displaying the signal to provide an indication of the degree of fluidization within the reactor, and controlling the rate of gas flow into the reactor until said signal stabilizes at a constant value to provide substantially complete fluidization within the reactor. (AEC)
Authors:
;
Publication Date:
OSTI Identifier:
4817166
Report Number(s):
US 3012848
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Research Org:
Originating Research Org. not identified
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; CONTROL; DETECTION; FLUID FLOW; FLUIDS; FREQUENCY; POWDERS; REACTORS; RESONANCE; RODS; SIGNALS