Apparatus in the fabric filter control of air pollution
Patent
·
OSTI ID:6624443
A method and apparatus are described for maintaining the permeability of porous filtering media used in filtering gaseous suspensions. More particularly the invention defines inside bag dust collection wherein high energy pressurized gas is introduced for cleaning the filtering media. In the method and apparatus pneumatic impulse forces, derived from a series of charges of pressurized gas are directed downwardly through ever open venturi means and away from the interior of the filter bags; specific jet nozzle elements optimize the efficiency of the pressurized gas application, and an induced air funnel means within the bag causes vertical force resolution for induced air cleaning flow. Spoiler means are provided within jet nozzle means such that particulate matter will neither enter nor accumulate in the jet nozzle opening during normal, onstream gas flow conditions. There is also an accommodation to the conventional dirty gas chamber to efficiently receive high velocity, high volume induced air cleaning flow.
- Assignee:
- York-Shipley Inc
- Patent Number(s):
- US 4235610
- OSTI ID:
- 6624443
- Country of Publication:
- United States
- Language:
- English
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