Title:
ガラス溶解炉、ガラス製造装置及びガラス製造方法
Document Type and Number:
Japanese Patent JP7459624
Kind Code:
B2
Abstract:
The present invention relates to a glass melting furnace, a glass manufacturing apparatus, and a glass manufacturing method. The glass melting furnace having a crown structure is provided with a refractory layer (25) and a heat-resistant layer (29). The refractory layer (25) has a block row in which a plurality of refractory blocks (23) are arranged in an arch shape, and the heat-resistant layer (29) is arranged above the refractory layer (25) and has heat-resistant blocks (27) with larger porosity than the refractory blocks (23). The refractory layer (25) has: a plurality of block segments in which a plurality of block rows are connected in the longitudinal direction of the glass melting furnace; and a gap portion (S) disposed between the plurality of block segments and absorbing thermal expansion in the longitudinal direction of the refractory blocks (23). The crown structure is provided with a first heat insulation component (51) which surrounds the upper opening of the gap portion (S) and defines a first space (45) on the inner side. The first heat-insulation component (51) is formed of a refractory material having a porosity of 50% or less.
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Inventors:
Yasuteru Yoshinaka
Application Number:
JP2020066081A
Publication Date:
April 02, 2024
Filing Date:
April 01, 2020
Export Citation:
Assignee:
AGC Inc.
International Classes:
C03B5/43; C03B5/42; C04B35/66; C04B38/00; F27B3/16; F27D1/00
Domestic Patent References:
| JP54025263U | ||||
| JP6263451A |
Foreign References:
| WO2013179409A1 | ||||
| EP2857363A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Eiko Office