Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1992-03-27
1993-05-04
Hart, Charles
Gas separation
Means within gas stream for conducting concentrate to collector
554591, 554595, 2105121, B01D 4512
Patent
active
052078051
ABSTRACT:
An improved cyclone separator and method of construction are disclosed. Such cyclone separators are employed for separating particulates from hot gas entering the separator barrel through an axially disposed slot in its periphery. An improvement in efficiency and recovery of very small particulates is achieved by making the slot very narrow so that the particulates enter the barrel very near its inner surface, thus having less distance to travel under centrifugal force in order to reach said inner surface. In accomplishing this objective, however, it has been discovered that, for the particular inlet gas velocity selected, the structure under certain design conditions will act as a cavity resonator with the characteristic frequencies of the cavity matching the frequency of the incoming gas as it rotates in the barrel, thus causing the structure to function as a resonator thereby destroying the efficiency or, in extreme cases, having catastrophic results (in the mathematical sense). The application explains how this hazard can be avoided. The separator unit is provided with a novel converging inlet to enhance separation efficiency, and a method is provided for increasing bypass of particulate past the separator units without adversely affecting the operation thereof.
REFERENCES:
patent: 2816490 (1957-12-01), Boadway et al.
patent: 3172844 (1965-03-01), Kurz
patent: 3243941 (1966-04-01), Peterson
patent: 3970437 (1976-07-01), Van Diepenbroek et al.
patent: 4824449 (1989-04-01), Majoros
Giuricich Nicholas L.
Kalen Bodo
Emtrol Corporation
Hart Charles
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