Patent ID: 8544298
Filing Date: 2013-10-01
Classification: C03B,C03C

Abstract:
1. A glass-melting furnace for changing glass raw material particles into liquid glass particles in a gas phase atmosphere in the glass-melting furnace, accumulating the liquid glass particles in a bottom portion of the glass-melting furnace to obtain a molten glass liquid and discharging the molten glass liquid; the furnace comprising a glass raw material feed portion disposed downwardly from a furnace wall portion in an upper portion of the glass-melting furnace; a first heating device to form a gas phase portion under the glass raw material particle feed portion for changing the glass raw material particles into liquid glass particles; a second heating device to heat an upper layer of the molten glass liquid; a furnace bottom portion to accumulate the liquid glass particles to form the molten glass liquid; and a discharge portion to discharge the molten glass liquid, wherein the glass raw material particle feed portion is integrated with the first heating device, and the second heating device is disposed so that at least a part of the upper end or the leading edge of a heating portion of the second heating device is present within 10 cm below a planned surface level of the molten glass liquid.