Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1991-10-16
1992-09-08
Hart, Charles
Gas separation
Means within gas stream for conducting concentrate to collector
55213, 55302, 55337, 55429, 55472, 55DIG20, B01D 4604
Patent
active
051454963
ABSTRACT:
A centrifugal air cleaning apparatus includes a housing defining a filter compartment containing a generally tubular filter cartridge having the open upper end thereof in communication with an air outlet opening through the top wall of the filter compartment. A vacuum source is provided in communication with that air outlet opening to effect vacuum pressure within the filter compartment. An air inlet opening through a side wall of the filter compartment has a multi-baffled flame arrestor associated therewith for extinguishing sparks in the fumes being drawn into the filter compartment and for directing the incoming air flow tangentially of the filter cartridge so that a portion of the pollutants carried in the fumes are separated by gravity before the fumes contact the filter cartridge. An injector conduit is provided within the flame arrestor to facilitate blowdown. A precoat feed conduit is supported in the filter compartment in upright spaced relation from the filter cartridge and has a plurality of vertically spaced outlet ports facing the cartridge for uniform distribution of precoat material under the filter cartridge. Efficient blowdown of the filter cartridge is accomplished by a diffuser hose extending downwardly through the filter cartridge, which hose has a plurality of vertically and circumferentially spaced apart outlet ports for directing multiple blasts of air radially outwardly from the hose along the full extent of the height of the filter cartridge. Collected dust is removable from the filter compartment either by a removable dust collection pan or automatically by an eductor associated with a hopper baffle at the base of the filter compartment.
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Beehner John A.
Hart Charles
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