21-03-2013 дата публикации
Номер: US20130072371A1
A foam and frothy glass mixture that forms on a pool of molten glass and inhibits heat transfer between the overhead flames and the pool of molten glass is decreased, if not eliminated, by spreading a glass fluxing agent, e.g. but not limiting to the invention, sodium sulfate over the foam and/or frothy glass mixture. 1. A method of reducing a foam and frothy glass mixture forming on a pool of molten glass in a furnace , the furnace comprising a feeding end , an outlet end and a position between the inlet end and the outlet end where raw glass batch materials moved into the inlet end of the furnace are melted as they move toward the outlet end , wherein the foam and frothy glass mixture forms on the pool of molten glass , the method comprising;spreading a glass fluxing agent over the foam and frothy glass mixture to collapse the foam and frothy glass mixture.2. The method according to wherein the glass fluxing agent includes sulfate.3. The method according to wherein the glass fluxing agent is a salt of sodium.4. The method according to wherein the salt of sodium is selected from the group of sodium sulfate claim 3 , sodium chloride claim 3 , sodium carbonate and mixtures thereof.5. The method according to wherein the spreading a glass fluxing agent is practiced at a position in the furnace where convection currents in the molten glass move in a counterclockwise direction.6. The method according to wherein the spreading a glass fluxing agent is accomplished by moving the glass fluxing agent through a spreading device.7. The method according to wherein the spreading a glass fluxing agent is accomplished by moving the glass fluxing agent through a spreading device at a rate of one pound per minute.8. The method according to wherein the raw glass batch materials are selected to make a soda-lime-silicate glass having a predetermined weight percent of the salt of sodium claim 2 , wherein a first portion of the salt of sodium having a weight percent greater than zero is ...
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