Glass manufacturing – Processes – With sealing off of gas evacuating opening
Patent
1996-07-31
1998-06-16
Silverman, Stanley S.
Glass manufacturing
Processes
With sealing off of gas evacuating opening
65178, 65335, 65346, C03B 5193
Patent
active
057662967
ABSTRACT:
A furnace (1) for melting vitrifiable materials, including a compartment (2) for melting and refining the glass equipped, upstream, with at least one means (4) for charging vitrifiable-materials and leading, downstream, into a compartment or a series or compartments (6-7-8) intended to lead the molten glass as far as the forming zone. It is equipped with a first means for controlling the convective flows of the mass of molten glass in the form of a transverse sill (14) delimiting an "upstream" zone (3) and a "downstream" zone (5). Associated with this sill are complementary means for controlling the convective flows in the "upstream" zone including, as a minimum, submerged "upstream" heating means (15) located close to and upstream of the sill, in order to prevent molten glass that has reached said the "downstream" zone from returning into the said "upstream" zone.
Another subject of the invention is the application of such a furnace and the method of operating it.
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Database WPIDS, week 9522, Derwent Information Ltd., AN-95-163358, Class L01, EP 650934 A1, (Gobert et al), abstract, May 1995.
Lebedeva, et al., "Features of Molten Glass Motion in Melting Tanks of Furnaces with Different Configuration of the Bottom Between the Bubbling Zones", Steklo i Keramika, No.5, pp. 14-15 (Trans.), Gusev Branch of the State Scientific-Research Inst. of Glass, May 1978.
Saint-Gobain Vitrage
Silverman Stanley S.
Vincent Sean
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