Removable damper for chemical recovery furnace

Details Removable damper for chemical recovery furnace Removable damper for chemical recovery furnace

1992-09-23

1994-05-03

Favors, Edward G.

Furnaces

Tuyeres

15246, 422185, F23L 500

Patent

active

053077458

ABSTRACT:
Damper apparatus for air ports of a chemical recovery furnace is mounted on a removable windbox faceplate. Damper blades extend from a cantilevered arm 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 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.

REFERENCES:
patent: 4423533 (1984-01-01), Goodspeed
patent: 4748004 (1988-05-01), Goodspeed
patent: 4822428 (1989-04-01), Goodspeed
patent: 4838182 (1989-06-01), Goodspeed
patent: 4846080 (1989-07-01), Ross et al.
patent: 5001992 (1991-03-01), Higgins et al.
patent: 5044327 (1991-09-01), Hunt
patent: 5070823 (1991-12-01), Ackerman et al.
patent: 5167192 (1992-12-01), Pingel et al.
"Arrangement of Secondary Air Damper Drive" Drawing Illustrating Damper Installation in Barberton, Ohio, Aug. 7, 1987.

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