Glass melting apparatus , and method of supplying the molten glass , as well as the outflow passage for the melting furnace .

摘要

PROBLEM TO BE SOLVED: To minimize the amount of a foreign crude base, which has been formed in a melting furnace, discharged from the melting furnace together with molten glass.;SOLUTION: What is provided is a glass melting apparatus 1 provided with a melting furnace 2 which forms or heats molten glass G and an effluent passage 4 which projects from the sidewall 2a on the downstream side of the melting furnace 2 into the inside of the melting furnace 2 and has a molten glass G effluent port 4b, wherein a roof 15 which covers at least that partial area of the upper part of the effluent passage 4 which is contiguous to the side of a sidewall 2a of the melting furnace 2 is provided, and the roof 15 has a fused glass guide surface 15a comprising sloped planes 15aa and 15ab being downward sloping toward the side part or sidewall 2a of the effluent passage 4.;COPYRIGHT: (C)2013,JPO&INPIT