Gas-particulate separator with pulse-jet cleanable filter elements
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United States of America Patent
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Jan 27, 1981
Issued Date -
N/A
app pub date -
Aug 20, 1979
filing date -
Aug 20, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vortical-type separator for removing from the gas stream suspended particulates present in the gas stream has an internally generated scavenging gas flow and a pulse jet system for cleaning scavenging gas filter elements. The separator has two or more conduits that are coaxially positioned with an annular clearance at their ends. A gas swirl device creates a swirling motion, causing heavier particulates to be discharged out the annular clearance or ejection port into a scavenging gas plenum. A flow path is created between the scavenging gas plenum and the outlet of the separator, with the pressure differential between the outlet and the ejection port causing scavenging gas to flow to the outlet. A frame is mounted in the flow path over which a bag filter is secured. The dust-laden scavenging gas flows through the bag filter and out the outlet. A nozzle is positioned at the mouth of the bag filter for periodically discharging a pulse of clean gas into the bag filter reverse to the flow of the scavenging gas. The pulse creates a shock wave, distending the bag filter to dislodge accumulated solids on the exterior of the bag filter.
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