Contractor/filter improvements
The patent describes an improved contractor/filter arrangement for removing particulate contaminants from a gaseous stream. It includes a housing having a substantially vertically oriented granular material retention member with upstream and downstream faces, a substantially vertically oriented microporous gas filter element, wherein the retention member and the filter element are spaced apart to provide a zone for the passage of granular material there-through. The housing further includes a gas inlet means, a gas outlet means, and means for moving a body of granular material through the zone. A gaseous stream containing particulate contaminants passes through the gas inlet means as well as through the upstream face of the granular material retention member, passing through the retention member, the body of granular material, the microporous gas filter element, exiting out of the gas outlet means. Disposed on the upstream face of the filter element is a cover screen which isolates the filter element from contact with the moving granular bed and collects a portion of the particulates so as to form a dust cake having openings small enough to exclude the granular material, yet large enough to receive the dust particles.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4880608; A
- Application Number:
- CNN: AC33-83PC60262; PPN: US 7-213798A
- OSTI ID:
- 6969504
- Resource Relation:
- Patent File Date: 30 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
AIR FILTERS
DESIGN
FLUE GAS
AIR POLLUTION CONTROL
AIR POLLUTION ABATEMENT
AIR POLLUTION MONITORS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
COPPER OXIDES
DUSTS
PARTICULATES
POLLUTION CONTROL EQUIPMENT
POROSITY
REMOVAL
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CONTROL
COPPER COMPOUNDS
EQUIPMENT
FILTERS
GASEOUS WASTES
MEASURING INSTRUMENTS
MONITORS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION ABATEMENT
POLLUTION CONTROL
TRANSITION ELEMENT COMPOUNDS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)