| 摘要 |
PROBLEM TO BE SOLVED: To prevent temperature drop in a raw material tank caused by a replenished glass-making feedstock, when replenishing the glass-making feedstock from a liquid replenishment tank.SOLUTION: A tip part of a raw material tank side end 41 of a replenishment pipe 4 is inserted into a glass-making feedstock 21, and on a part where the raw material tank side end 41 is inserted into the glass-making feedstock 21, the raw material tank side end 41 has a heat exchange part 6 capable of performing greater heat exchange than a part in contact with a space 22 in a raw material tank 2.SELECTED DRAWING: Figure 1 |
