Investigation on in-flight melting behavior of granulated alkali-free glass raw material under different conditions with 12-phase AC arc

An innovative in-flight melting technology with 12-phase alternating current (AC) arc has been developed to investigate the melting behavior of granulated alkali-free glass raw material. Results show that the melted particles have spherical shape with smooth surface and compact structure. Lower vitr...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2008-10, Vol.144 (2), p.317-323
Main Authors: Yao, Yaochun, Yatsuda, Kazuyuki, Watanabe, Takayuki, Funabiki, Fuji, Yano, Tetsuji
Format: Article
Language:English
Subjects:
12-Phase AC arc
Applied sciences
Chemical engineering
Exact sciences and technology
Glass production
Heat and mass transfer. Packings, plates
Heat transfer
In-flight melting
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Summary:An innovative in-flight melting technology with 12-phase alternating current (AC) arc has been developed to investigate the melting behavior of granulated alkali-free glass raw material. Results show that the melted particles have spherical shape with smooth surface and compact structure. Lower vitrification and decomposition degrees of raw material as well as lower volatilization of B 2O 3 are attributed to less heat transferred per particle under larger flow rate of carrier gas and higher feed rate. The high vitrification and decomposition degrees indicate that the new in-flight glass melting with 12-phase AC arc will be a promising technology for glass production.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2008.06.039