Acoustically fluidized bed of fine particles

Details Acoustically fluidized bed of fine particles Acoustically fluidized bed of fine particles

1988-05-18

1990-08-14

Hajec, Donald T.

Classifying, separating, and assorting solids

Miscellaneous

55 15, 55277, 738655, 73505, 181153, 209 11, 209422, B07B 300

Patent

active

049484974

ABSTRACT:
An apparatus to acoustically fluidize a bed of fine particles comprises a generally box-shaped hollow chamber. An acoustic source is located at the bottom of the chamber and a convection inhibiting heater is located at the top of the chamber. An acoustic wave is directed from the source into the chamber to levitate and suspend fine particles within the chamber at determinable distances from the acoustic source according to the intensity and frequency of the acoustic wave.

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patent: 3076544 (1963-02-01), Bodine
patent: 3076547 (1963-02-01), Bodine
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patent: 4520656 (1985-06-01), Barmatz et al.
patent: 4523682 (1985-06-01), Barmatz et al.
patent: 4549435 (1985-10-01), Barmatz et al.
patent: 4743361 (1988-05-01), Schram
patent: 4759775 (1988-07-01), Peterson et al.
Sonics by Hueter and Bolt, pp. 219-225.
Whymark et al., "Acoustic Levitation Materials Processing", Jan. 1979.
"Ultrasonic Desliming and Upgrading of Ores" S. C. Sun et al., Jun., 1956, pp. 639-644.

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