Lid heater for glass melter

Details Lid heater for glass melter Lid heater for glass melter

1992-01-14

1993-12-14

Reynolds, Bruce A.

Industrial electric heating furnaces

Glass furnace device

373 29, 373 30, 373 32, 373 37, 373117, 373127, 373131, 65356, 65347, C03B 1818

Patent

active

052710327

ABSTRACT:
A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes beginning where the tubes leave the melter interior and nickel connectors to connect the tubes electrically in series. An applied voltage causes the tubes to generate heat of electrical resistance for melting frit injected onto the melt. The cores limit heat generated as the current passes through the walls of the melter. Nickel bus connection to the electrical power supply minimizes heat transfer away from the melter that would occur if standard copper or water-cooled copper connections were used between the supply and the INCONEL 690 heating tubes.

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