C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
307/5
C03B 5/027 (2006.01) H05B 3/60 (2006.01)
Patent
CA 1185305
ABSTRACT A high temperature electronic furnace wherein a product-containing vessel has a product exit orifice, a plurality of electrodes are located in the vessel to define primary current paths adjacent the orifice, a control electrode is positioned in the vessel for defining an additional current path adjacent the orifice and a circuit for energizing the primary electrodes with multiphase current and for time-sharing the multiphase current with the control electrode. The degree of time-sharing is made responsive to the temperature of product passing through the ori- fice and/or the rate of flow of product passing through the ori- fice. In addition, the control electrode is moveably positioned with respect to the orifice, with the position of the control electrode being dependent upon the temperature of product passing through the orifice and/or the rate of flow of product through the orifice. The invention also includes a method for con- trolling the melting of product wherein primary electrodes of a furnace are sequentially electronically replaced by a control electrode.
380652
Energy Fibers Int'l Corp.
Marcoux & Sher Swabey Mitchell Houle
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