Electrode assembly for glass tank furnaces
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United States of America Patent
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Feb 4, 1997
Grant Date -
N/A
app pub date -
Dec 11, 1995
filing date -
Dec 17, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrode assembly for glass tank furnaces comprises a rod electrode inserted in a cylindrical electrode holder, through which it can be advanced. Along at least part of its length the said electrode holder is fitted with a device for forced cooling and is installed in an electrode block in the furnace. In order to dispense with and in order to operate the electrode holder at a constant temperature the holder is inserted with the bottom face below a filling level determined by the design of the furnace, and provided with a seal between it and the electrode above the filling level. Preferably the electrode holder has an outer tube and an inner tube, which create an annular gap between them for a cooling medium, whereby the inner tube protrudes out of the upper end of the outer tube and a sealing unit is provided between the inner tube and the electrode.
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