GLASS MELTING FURNACE

摘要

Mixed raw glasses of different melting points are melted in a glass melting furnace by at least two pairs of electrodes one pair beneath the supply port being spaced at a smaller interval than the other pair(s) and being so arranged that the adjacent electrodes of the pairs are of the same polarity. Extra heating is supplied by resistance heater groups arranged in parallel above the raw glass melt in melting and refining zones with certain heater groups detachably inserted for initial melting and withdrawn during the continuous operation.