Process and furnace for melting glass using oxy-fuel burners

摘要

In an industrial furnace used to melt glass batch or glass melt least two oxy-fuel burners are employed in the roof 21 or side-wall 36 of the furnace. At least one oxy-fuel burner 11 is operated with a fuel-rich mixture and at least one other oxy-fuel burner 12 is operated with a fuel-lean mixture. The flames are directed to intersect near the surface of the batch 16 or the melt 17 in order substantially to complete combustion in the vicinity of the melt 17 thereby increasing heat transferred to the material to be melted while also reducing the amount of heat transferred to the roof 24 and the side-walls 36 of the furnace.