METHOD OF PRODUCING MINERAL MELT Russian patent published in 2020 - IPC C03B5/12 

FIELD: metallurgy.

SUBSTANCE: invention relates to a method of producing mineral melt. Method of producing a mineral melt, in which a circulating combustion chamber is provided, in which suspended dispersed materials and gas are circulated in a system which is a cyclone circulation system, wherein said circulation chamber comprises top section, bottom section and base section. Primary disperse fuel and disperse mineral material and primary gas for combustion to upper section of circulation combustion chamber are injected. As a result, the primary dispersed fuel is at least partially combusted, and by means of this the dispersed mineral material is melted with formation of mineral melt and by generation of waste gases. In the lower section of the circulation combustion chamber, at least through one first burner, secondary gas for combustion and gaseous fuel and secondary disperse fuel are pumped. Secondary gas for combustion and gaseous fuel and secondary disperse fuel are injected through a single first burner. Amount of secondary gas for combustion injected through each first burner is insufficient for stoichiometric combustion of the entire amount of gaseous fuel and secondary disperse fuel injected through said first burner. Tertiary gas is injected for combustion into lower section of circulation combustion chamber via at least one injector of tertiary gas for combustion. As a result, tertiary gas for combustion provides for the completion of combustion of gaseous fuel and secondary disperse fuel. Mineral melt is separated from hot exhaust gases so that hot exhaust gases pass through outlet channel in circulation combustion chamber, and mineral melt is collected in base section. Tertiary gas injector for combustion is provided for each first burner. Each injector of tertiary gas for combustion is located lower in direction of circulation movement in combustion chamber relative to conjugated with it first burner along flame formed from the first burner. Tertiary gas injector is arranged so that to direct the tertiary gas for burning into the flame along the flame burning trajectory.

EFFECT: technical result is higher efficiency of disperse fuels introduction into fusion processes.

15 cl, 2 dwg