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Electric melting of solidified glass in melting units

  • US 4,426,217 A
  • Filed: 05/17/1982
  • Issued: 01/17/1984
  • Est. Priority Date: 05/17/1982
  • Status: Expired due to Term
First Claim
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1. A method of melting solidified glass in a submerged throat of a glass melting furnace comprising providing at least a first electrode in the melter chamber supply slot, providing a second electrode in the covered submerged throat, heating glass about said first electrode to a conductive condition around said first electrode and supplying electric energy between said first electrode and said second electrode to establish a Joule effect conductive path therebetween to more fully melt the glass therebetween, subsequent electrodes adjacent said second electrode along the length of the covered submerged throat, sequentially supplying electric energy between said first electrode and subsequent electrodes along said submerged throat to sequentially thaw the solidified glass by conduction of heat from the region between the first electrode and second electrode until the glass around the subsequent electrodes become conductive and electric power for Joule effect heating can be applied to subsequent electrodes in the submerged throat until all of the glass in the submerged throat is molten.

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