Downflow dust filter

Patent · Tue Sep 09 00:00:00 EDT 1986

OSTI ID:5256229

Richard, K L

This patent describes an industrial dust filter apparatus comprising: a housing including upper, intermediate and lower sections, the upper section having a top opening inlet for particulate laden gases and the lower section tapering downwardly to a particulate outlet; a plurality of vertically arranged substantially cylindrical filters supported in substantially parallel relationship to each other in the intermediate section of the housing, the filters being closed at their upper ends and having their exterior filter surfaces exposed to particulate laden gases from the inlet; at least one horizontal duct extending across the housing beneath the filters, closed at one end and opening at its other end to a clean gas outlet through a side wall of the intermediate housing section; means communicating the lower open end of the filters through the upper walls of the duct so that the duct functions as a clean gas plenum; a plurality of verturis, vertically supported in the duct, on aligned with each filter; and means in the duct for pulse firing a jet of air upwardly through the venturis into the interior of the filters to remove particulates from the outer surfaces thereof.

• Assignee: NOV; NOV-85-024038; EDB-86-177436
• Patent Number(s): US 4610704
• OSTI ID: 5256229
• Resource Relation: Patent File Date: Filed date 14 Nov 1985
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
42 ENGINEERING
DUSTS
FILTRATION
FILTERS
DESIGN
INDUSTRIAL PLANTS
AIR POLLUTION CONTROL
PARTICULATES
AIR FLOW
DUCTS
PULSE TECHNIQUES
SURFACES
VENTURI TUBES
CONTROL
FLUID FLOW
GAS FLOW
PARTICLES
POLLUTION CONTROL
SEPARATION PROCESSES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
424000 - Engineering- Pollution Control Equipment- (1980-1989)