Title:
GLASS MELTING DEVICE, GLASS PRODUCTION METHOD, AND MOLTEN GLASS BASE MATERIAL EXCHANGE METHOD
Document Type and Number:
WIPO Patent Application WO/2022/075016
Kind Code:
A1
Abstract:
This glass melting device comprises: a melt tank for accumulating molten glass; an electrode traversing a through-hole in the bottom wall of the melt tank, protruding above the bottom wall, and electrically heating the molten glass; and a cooler surrounding the electrode in the through-hole of the bottom wall. The bottom wall of the melt tank includes a first brick forming a surface layer in contact with the molten glass, and a second brick surrounding the electrode and the cooler in the through-hole of the surface layer. The first brick is superior in corrosion resistance to the second brick. The second brick is such that no reversible transformation occurs in the temperature region of 1000°C to 1200°C.
Inventors:
AKAGI RYOSUKE (JP)
MATSUYAMA TOSHIAKI (JP)
FUJISAKI KAZUYUKI (JP)
MATSUYAMA TOSHIAKI (JP)
FUJISAKI KAZUYUKI (JP)
Application Number:
PCT/JP2021/033740
Publication Date:
April 14, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C03B5/43; F27B14/06
Domestic Patent References:
| WO2019004434A1 | 2019-01-03 | |||
| WO2019093129A1 | 2019-05-16 | |||
| WO2019092908A1 | 2019-05-16 |
Foreign References:
| JP2017014055A | 2017-01-19 | |||
| US4819247A | 1989-04-04 | |||
| JPS63185831A | 1988-08-01 | |||
| JP2017178760A | 2017-10-05 | |||
| JP6670460B2 | 2020-03-25 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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