Electric heating of glass forehearth

Details Electric heating of glass forehearth Electric heating of glass forehearth

1985-09-16

1987-04-07

Kellogg, Arthur

Glass manufacturing

Glass conditioning channel section

65136, 65137, 65162, 65337, 65347, C03B 5235

Patent

active

046558128

ABSTRACT:
A forehearth for a glass furnace includes a roof formed of a plurality of roof blocks designed to provide below the roof blocks a central longitudinal channel and side channels on each side of the central channel. An electric heating element is positioned in a bore in the roof blocks substantially directly above the side channels to permit radiation of heat to the glass surface above the side channels. The temperature of the molten glass utilizing the construction can be effectively uniformly controlled across its cross-section.

REFERENCES:
patent: 1953023 (1934-03-01), Mulholland
patent: 3531275 (1970-09-01), Magnusson et al.

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