Combined furnace
Installation including an industrial glass furnace ( 1 ) including a tank ( 2 ) for molten glass ( 3 ), a combustion heating chamber ( 4 ) situated above the tank ( 2 ), and a duct for evacuation of flue gases in communication with said heating chamber ( 4 ), and a stone furnace including a firing zone ( 21 ) for stone to be fired, the flue gas evacuation duct including a flue gas outlet that is connected to the firing zone ( 21 ) of stone to be fired and supplying the firing zone ( 21 ) of stone to be fired with flue gases at high temperature.
1. An installation including an industrial glass furnace ( 1 ) comprising a tank ( 2 ) for molten glass ( 3 ), a combustion heating chamber ( 4 ) situated above the tank ( 2 ), and a duct for evacuation of flue gases in communication with said heating chamber ( 4 ), and a stone furnace ( 11 ) comprising a firing zone ( 21 ) for stone to be fired, and a cooling zone ( 22 ) situated under the firing zone ( 21 ), wherein ambient air enters at a bottom portion of the stone furnace ( 11 ), passing upwardly through the cooling zone ( 22 ), the duct comprising a flue gas outlet that is connected to the firing zone ( 21 ) of stone to be fired and supplying the firing zone ( 21 ) of stone to be fired with flue gases at a temperature greater than 900° C.
2. The installation as claimed in claim 1 , wherein the flue gases outlet is in a duct ( 10 ) of the flue gases evacuation duct.
3. The installation as claimed in claim 1 wherein the fuel is gas and/or fuel oil, the oxidizer is oxygen and/or air and the daily capacity of the glass furnace is greater than 10 tons of glass per day.
4. The installation as claimed in claim 1 , wherein the firing zone ( 21 ) is tubular, a stone to be fired feeding zone being disposed above and a fired stone extraction zone being disposed below.