FURNACE AND COMBUSTION METHOD WITH OXYGEN BLOWING FOR MELTING OF GLASS-FORMING MATERIALS Russian patent published in 2012 - IPC C03B5/235 

FIELD: power industry.

SUBSTANCE: method for obtaining molten glass by melting of glass-forming materials in melting chamber restricted with an inlet wall, an outlet wall, side walls, floor and arch and having the area of inner surface, which is smaller than or equal to 200 m² and preferably located at the interval of 10 to 90 m² is proposed. That chamber has inlet zone on the side of inlet wall, outlet zone on the side of outlet wall and longitudinal axis passing between inlet and outlet walls; at that, the method involves the following stages: glass-forming materials are loaded in inlet zone; glass-forming materials are molten so that molten glass is obtained by supply to the melting chamber the energy required for melting process; at that, at least 70% of energy required for melting process is supplied by supplying fuel and oxidiser to two burners with oxygen blowing; at that, oxidiser has oxygen content equal at least to 70 vol. % and preferably at least 80 vol. %, and by injecting the fuel and oxidiser to melting chamber by means of two burners with oxygen blowing in order to form two flames having the atomisation axes and flue gases. Both burners with oxygen blowing enter the melting chamber through inlet wall and are located on both sides from vertical plane including longitudinal axis of melting chamber; molten glass is removed from outlet zone; flue gases are removed from melting chamber at least through one opening for flue gas removal, and in which the atomisation axes of both flames converge preferably in vertical plane including longitudinal axis of melting chamber, at distance "d" from inlet wall, which has the value at the interval of 1/3 to 3/4 of length L of melting chamber and preferably approximately equal to 2/3 of melting chamber length.

EFFECT: reduction of energy consumed for glass melting.

19 cl, 1 tbl, 1 dwg