| 摘要 |
An apparatus for degassing a molten glass is provided which can heighten a clarifying effect without the need of changing conditions for a clarification step, such as the degree of vacuum and the temperature of the molten glass. The apparatus for degassing a molten glass includes a degassing tank. The apparatus is characterized in that the degassing tank is equipped inside with a means for raising bubbles which comprises a first member and a second member, that the first member has been attached to the inner wall of the degassing tank so that at least part of the first member is immersed in the molten glass and the member extends throughout the whole width of the molten-glass passage in the degassing tank, and that the second member has been attached to the inner wall of the degassing tank so as to extend upward from the bottom side of the degassing tank. |
