Patent ID: 7669439
Filing Date: 2010-03-02
Classification: C03B,F23C,F23D,F23L,Y02E,Y02P

Abstract:
1. A glass melting furnace having: an upstream melting zone; a downstream fining zone; a charging section in the melting zone; at least one oxy-fuel tired burner disposed in the melting zone proximate the charging section to provide an oxy-fuel combustion region; at least one gas inlet positioned proximate to the oxy-fuel combustion region to introduce a first volume of gas, having no or a dilute partial pressure of alkali vapor, into the oxy-fuel combustion region and at least partially displace a second volume of gas, optionally substantially equal to the first volume, from the oxy-fuel combustion region, the second volume having a higher partial pressure of alkali vapor than the first volume; at least one gas outlet adapted to provide an exit for a volume of furnace atmosphere; and a regenerator or a recuperator having a plurality of ports, wherein at least one port of the regenerator or the recuperator is at least partially blocked and wherein at least one port of the regenerator or the recuperator is at least partially open to provide the at least one gas inlet.