Furnace bottom heating

Details Furnace bottom heating Furnace bottom heating

1985-05-02

1986-10-21

Envall, Jr., Roy N.

Industrial electric heating furnaces

Glass furnace device

Joule effect heating

C03B 5027

Patent

active

046189629

ABSTRACT:
Electrically energizable heating means are disclosed for supplying heat to a bottom portion of a melting furnace having a metal lined refractory vessel, wherein the heating means are in the form of electrodes or resistance heaters which are protected from the body of the melt by a shroud forming a portion of the metal liner for the refractory vessel, and such heating elements are raised above the bottom of the refractory vessel to prevent the corrosion thereof due to the heat produced by the heating units.

REFERENCES:
patent: 2119949 (1938-06-01), Blau et al.
patent: 2781411 (1967-02-01), Geffcken et al.
patent: 3109045 (1963-10-01), Silverman
patent: 4366571 (1984-06-01), Palmquist

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