Method of controlling accumulation of sodium sulfate on the chec

Details Method of controlling accumulation of sodium sulfate on the chec Method of controlling accumulation of sodium sulfate on the chec

1996-12-06

1998-11-24

Silverman, Stanley S.

Glass manufacturing

Processes

Repairing or cleaning of apparatus; or batch dust prevention...

651346, C03B 5237

Patent

active

058400931

ABSTRACT:
The instant invention provides a method of controlling the accumulation of sodium sulfate in the checker packing of a regenerator of a cross-fired regenerative-type glass melting furnace. Typically, glass batch materials are melted within the furnace by combustion of fuel. This combustion produces exhaust gas that is drawn through the regenerator and heats the checker packing. During the melting operation, sodium sulfate gas is formed by the melted glass and is carried with the exhaust gas through the regenerator. The sodium sulfate gas may condense on a portion of the checker packing. As the sodium sulfate condensate accumulates on the checker packing, it may restrict the flow of exhaust gas and/or combustion air through the regenerator. In the instant invention, a section of the regenerator which includes the portion of the checker packing with the condensed sodium sulfate is selectively heated to a temperature sufficient to melt the sodium sulfate, while any additional heating of remaining sections of the regenerator is minimized. In one embodiment of the invention, fuel is injected into a portion of the exhaust gas that passes through the section of the regenerator where the sodium sulfate condensate has accumulated. The fuel burns with the portion of the exhaust gas and heats the portion of the checker packing with the sodium sulfate build-up to melt the sodium sulfate.

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patent: 5659564 (1997-08-01), Elliot

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