Removable damper for chemical recovery furnace
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United States of America Patent
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-
Oct 4, 1994
Issued Date -
N/A
app pub date -
Nov 30, 1993
filing date -
Sep 23, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Damper apparatus for air ports of a chemical recovery furnace is mounted on a removable windbox faceplate. Damper blades extend from cantilevered arms pivoted at the forward side of the faceplate, with the damper blades being otherwise unsupported, i.e., they are not confined to travel in tracks within the windbox. Rather, a spring or counterweight urges the damper blades against the air port opening whereby the whole mechanism is free for removal as a unit with the faceplate. Cooperatively operable air port cleaning apparatus is also mounted on the faceplate.
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