Heating – Advancing structure flexing – looping or coiling sheet – web...
Patent
1987-10-13
1988-12-06
Yuen, Henry C.
Heating
Advancing structure flexing, looping or coiling sheet, web...
432 72, 110228, 110222, 110236, 110281, F27B 928, F26B 500
Patent
active
047893320
ABSTRACT:
A process and apparatus for removing volatile contaminants from scrap metal is disclosed. The process is carried out in a furnace maintained at a relatively constant temperature and having a first zone in which volatiles contained on the surface of the metal are vaporized and a second zone in which carbon contained on the surface of the metal is pyrolyzed. The furnace also has a conveyor for transporting metal therethrough at a specific speed to ensure complete vaporization and pyrolysis of the contaminants. The process includes the steps of sufficiently vaporizing the volatiles without oxidizing the metal, the vaporizing producing fumes containing unburned hydrocarbons. The hydrocarbon fumes are then burned to produce hot gas which is recirculated to the furnace. The hot gas contacts the incoming metal and vaporizes the volatiles contained thereon.
REFERENCES:
patent: 945469 (1910-01-01), Mapel
patent: 2750680 (1956-06-01), Houdry et al.
patent: 2795054 (1957-06-01), Bowen, III
patent: 2932264 (1960-04-01), Hurst
patent: 3005699 (1961-10-01), Erck et al.
patent: 3604824 (1971-09-01), Haridson
patent: 3623235 (1971-11-01), Smith, Jr.
patent: 3627289 (1971-12-01), Erman
patent: 3670669 (1972-06-01), Hoad
patent: 3787171 (1974-01-01), Cromp
patent: 3917444 (1975-11-01), Carthew
patent: 4021192 (1977-05-01), Ferguson et al.
patent: 4098007 (1978-07-01), Davis et al.
patent: 4098200 (1978-07-01), Dauvergne
patent: 4121524 (1978-10-01), Voelskow et al.
patent: 4167909 (1979-09-01), Dauvergne
patent: 4217090 (1980-08-01), Whike et al.
patent: 4326342 (1982-04-01), Schregenberger
patent: 4331086 (1982-05-01), Fitch et al.
patent: 4389978 (1983-06-01), Northcote
patent: 4418816 (1983-12-01), Kropp
patent: 4510873 (1985-04-01), Shigaki
patent: 4563959 (1986-01-01), Fujiwara
Evans Donald C.
Gray Bruce A.
Ramsey Everett M.
Aluminum Company of America
Brownlee David W.
Connelly Thomas J.
Yuen Henry C.
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