Electric furnace thermal-insulating module

Details Electric furnace thermal-insulating module Electric furnace thermal-insulating module

1981-08-03

1983-11-08

Envall, Jr., Roy N.

Industrial electric heating furnaces

Resistance furnace device

With heating element detail

373137, 52506, 52511, 432247, 110336, F27D 100, E04B 180

Patent

active

044146744

ABSTRACT:
A thermal-insulating panel for use in an electric furnace. A refractory fiber mat is formed of discrete refractory fibers bonded together by an inorganic bonding agent having a hot face, a cold face and a plurality of side faces. A plurality of individual ceramic supports are partially embedded in said mat and protrude outward from the hot face. The embedded portions are shaped so as to be firmly anchored within the mat, and the protruding portions are shaped to support an electrical resistance heating ribbon in the interior of the furnace.
The modules are preferably formed in a felting box where the ceramic supports extend horizontally from cavities in the front wall. The layers of fibers build up upon the bottom screen in planes perpendicular to the hot face of the module.

REFERENCES:
patent: 4001996 (1977-01-01), Byrd, Jr.
patent: 4088825 (1978-05-01), Carr
patent: 4120641 (1978-10-01), Myles
patent: 4122644 (1978-10-01), Woodruff
patent: 4249888 (1981-02-01), Werych
patent: 4339902 (1982-07-01), Cimochowski et al.
patent: 4379382 (1983-04-01), Sauder et al.

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