Process for melting and refining a charge

Details Process for melting and refining a charge Process for melting and refining a charge

1991-03-18

1992-10-27

Woodard, Joye L.

Glass manufacturing

Processes

Fining or homogenizing molten glass

65136, C03B 5225

Patent

active

051585901

ABSTRACT:
Process for melting and refining a charge which is continuously introduced in raw condition at the inlet of a furnace and extracted in liquid condition at the bottom thereof, with heat transfer towards at least a substantial portion thereof by wall mounted flame burners directed towards the charge in which at least part of the flames result from the combustion of an industrial mixture of fuel and oxygen. For one or more of the flames in the refining zone, there is provided a pulsating combustion with cyclic variations of the oxygen and fuel feeds, including periods of maximum activity with flames of high heat capacity which alternate with periods of rest with substantially reduced and even completely nullified heat capacity. Application for example to the preparation of glass.

REFERENCES:
patent: 2616221 (1952-11-01), Hanson
patent: 3129930 (1964-04-01), Labat-Camy
patent: 3426653 (1969-01-01), Boettner
patent: 3475151 (1969-10-01), Briggs
patent: 3592623 (1971-07-01), Shepherd
patent: 3741742 (1973-06-01), Jennings
patent: 3887326 (1975-06-01), Townley
patent: 4818221 (1989-04-01), Besne

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