Rotary retort heat treating furnace seals

Details Rotary retort heat treating furnace seals Rotary retort heat treating furnace seals

1994-09-30

1996-10-22

Kastler, Scott

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

277 12, 266287, C21B 1106

Patent

active

055673805

ABSTRACT:
The present invention provides a seal ring assembly for sealing a discharge end of a rotary retort heat treating furnace. The furnace contemplated by this invention has an outer furnace shell, a retort chamber, a rear plug, a cone casting, and a support ring. The cone casting is positioned at the discharge end of the retort chamber and the cone casting and the support ring are fixedly attached to rotate together with the retort chamber. The seal rings of the present invention are aluminum-bronze annular members fixedly attached to the discharge end of the rotary retort furnace. A gasket provides a simple static biasing arrangement to ensure contact between the face of the seal and the support ring. The seal is formed at a wear surface between the face of the aluminum-bronze seal and the support ring. The wear surface is lubricated by a plurality of graphite inserts.

REFERENCES:
patent: 4087334 (1978-05-01), Harig et al.
patent: 4338080 (1982-07-01), Grandcolas et al.
patent: 4343478 (1982-08-01), Morgan et al.
patent: 4457520 (1984-07-01), Grachtrup
patent: 4545764 (1985-10-01), Gillies et al.
patent: 4804195 (1989-02-01), Parker
patent: 5078836 (1992-01-01), Hogan
patent: 5106105 (1992-04-01), Drexler
patent: 5256250 (1993-10-01), Pelzer

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