GLASS MELTING FURNACE WITH INCREASED EFFICIENCY Russian patent published in 2020 - IPC C03B5/237 

FIELD: glass.

SUBSTANCE: invention relates to production of glass. In particular, disclosed is a method of producing molten glass, comprising (A) feeding a material of a glass mixture into a glass-baking furnace having a back wall, a front wall and a pair of side walls facing each other and extending from the rear wall to the front wall, and dome, wherein material of glass charge is supplied to supply zone, which extends from rear wall to 30 % of furnace length from rear wall to front wall; (B) combustion of fuel in said furnace in existing burners, and (C) alternately performing (1) passing of gaseous combustion products from furnace to cooled first regenerator and through it for heating of first regenerator and cooling of said gaseous combustion products, and passing a first portion of said cooled gaseous combustion products from said first regenerator and fuel to a heated second regenerator and conducting in the second regenerator an endothermic reaction between the gaseous combustion products and fuel to form synthetic gas containing hydrogen and CO, and passing said synthetic gas from second regenerator to feed zone and burning it in feed zone, and (2) passing gaseous combustion products from furnace to cooled second regenerator and through it for heating the second regenerator and cooling said combustion gases, and passing the first portion of said cooled gaseous combustion products from said second regenerator and fuel to a heated first regenerator and conducting in first regenerator of endothermic reaction between gaseous combustion products and fuel for formation of synthetic gas containing hydrogen and CO, and passing said synthetic gas from first regenerator to feed zone and burning it in feed zone, under conditions in which combustion of the synthetic gas from the first and second regenerators in the furnace maintains the dome temperature in the supply zone within 100 °C of the highest dome temperature in the furnace outside the supply zone.

EFFECT: technical result is combustion in the zone near the back wall of the furnace without increasing the temperature of the hot zone of the furnace dome, thus increasing production of high-quality glass in the furnace.

18 cl, 9 dwg