Glass manufacturing – Processes – Fining or homogenizing molten glass
Patent
1984-07-23
1985-08-20
Lindsay, Robert
Glass manufacturing
Processes
Fining or homogenizing molten glass
65178, C03B 518
Patent
active
045362050
ABSTRACT:
In a glass melting furnace, the beneficial effects of passing molten glass streams through the intensified heating at the surface of the "spring zone" are enhanced by the use of bubblers. In one aspect, the rate of bubbling is greater near a side wall of the furnace than in the center immediately upstream of the spring zone so as to direct side portions of the throughput stream into the spring zone. In another aspect of the invention, the rising currents of the spring zone are enhanced by bubbling a stream entering the spring zone at a first elevation and then bubbling the same stream portion at a higher elevation.
REFERENCES:
patent: 2387222 (1945-10-01), Wright
patent: 3104967 (1963-09-01), Beck et al.
patent: 3414396 (1968-12-01), Brichard
Harrell William C.
Harris James E.
Hilliard William G.
Krumwiede John F.
Lindsay Robert
Millman Dennis G.
PPG Industries Inc.
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