초록 ▼

In an industrial glass furnace which contains recuperators, regenerators, electric boost or other devices for providing heat to glass batch material an oxy-fuel burner mounted in the roof of the furnace provides additional heat to melt the batch material. A method of mounting and using such a roof-m

In an industrial glass furnace which contains recuperators, regenerators, electric boost or other devices for providing heat to glass batch material an oxy-fuel burner mounted in the roof of the furnace provides additional heat to melt the batch material. A method of mounting and using such a roof-mounted oxy-fuel burner including the operating parameters to maximize heat transfer while minimizing the disturbance of the batch material is disclosed.

대표청구항 ▼

1. A method of melting batch material in a glass furnace having at least one regenerator or at least one recuperator, and at least one existing end-fired air-fuel burner or at least one pair of existing cross-fired air-fuel burners, said furnace having sidewalls, a back wall, a front wall and a roof

1. A method of melting batch material in a glass furnace having at least one regenerator or at least one recuperator, and at least one existing end-fired air-fuel burner or at least one pair of existing cross-fired air-fuel burners, said furnace having sidewalls, a back wall, a front wall and a roof, and including an upstream melting zone and a downstream fining zone, the method comprising the steps of:providing at least one burner disposed at the roof of said furnace over said batch material in the melting zone; reducing fuel and combustion air flow to the at least one existing end-fired burner or the at least one existing pair of cross-fired burners; providing a flow of gaseous oxidant to said at least one roof burner; providing a flow of gaseous fuel to said at least one roof burner; generating a flame from at least said one roof burner to replace energy reduced from the existing burner or burners and to provide additional energy; and, controlling said flame to have a velocity sufficient to maximize transfer of heat from said flame to said batch material during which transfer said batch material remains substantially undisturbed.