Air cooled electrode system for electrically heated molten bath

Details Air cooled electrode system for electrically heated molten bath Air cooled electrode system for electrically heated molten bath

1978-12-11

1980-11-25

Rutledge, L. Dewayne

Metallurgical apparatus

Having means for contacting a solid metalliferous material...

By immersing an article to be treated in bath of molten...

266130, 13 18R, C21D 146

Patent

active

042354242

ABSTRACT:
An air cooled electrode system is employed with one or more electrically heated molten salt bath furnaces. Each furnace comprises a wall enclosing a chamber which contains the molten salt bath. Electrodes are laid or located in the wall to extend through the wall into the chamber so that each electrode exposes only one face to the molten bath. The electrodes are parallel to one another and are located on opposite sides of the chamber. Each electrode has an elongated shank made from an electrical conductive material and has in one end thereof a pair of elongated holes which extend into the shank and terminates a distance from the other end of the shank. A connecting hole extends laterally into the shank to connect the inner ends of the elongated holes. The connecting hole and elongated holes form an air cooling passage which has an entrance and an exit. The air cooled electrode system includes a blower which is connected to a header for delivering air. Conduits connect the header to the entrances to the cooling passages of the electrodes of each furnace. When the furnace(s) is in use, the blower directs air to the header which delivers the air through the conduits to the entrances to the cooling passages of the electrodes. The air is directed through the cooling passages and removes heat from the electrodes. Finally, the heated air is directed to the exit or exhaust ends of the cooling passages.

REFERENCES:
patent: 1937064 (1933-11-01), Moore
patent: 2040215 (1936-05-01), Raua
patent: 2355761 (1944-08-01), Upton
patent: 2464008 (1949-03-01), Upton
patent: 3049576 (1962-08-01), Upton
patent: 3085124 (1963-04-01), Upton
patent: 3576385 (1971-04-01), Robinson
patent: 3666870 (1972-05-01), Kemper

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