GLASS MELTING FURNACE AND METHOD FOR PRODUCING GLASS

摘要

A method for producing glass wherein a charged glass raw material (B) is molten in a melting vessel (10) by the heating with a burner (31) and the heating by an electrode (12), to form a molten glass (G), and then the molten glass (G) flows into a vessel additionally provided as a rare gas dissolving vessel (20) through a throat (40), wherein the rare gas dissolving vessel (20) is provided with a rare gas dissolving device (53), the rare gas dissolving device (53) is equipped with sixteen rare earth gas inlets (22) for introducing a helium or neon gas supplied to a furnace floor by heat-resistant gas introduction tubes (21) into a rare gas dissolving vessel (20), and bubbles of a helium gas (A) having a purity of 99 % are blown out from rare earth gas inlets (22) in such an amount that they have an average diameter of 80 mm or less in the molten glass (G).