FIELD: metallurgy.
SUBSTANCE: method of heat feeding to melting furnace for formation of molten product at which it is introduced the first fuel, allowing ash component and combustible component, into slag-forming chamber of slag-forming fire chamber; it is introduced the first oxidation mixture into slag-forming chamber of slag-forming fire chamber, herewith the first oxidation mixture allows oxygen concentration 10-100 rev%; by selection, it is introduced the second fuel into slag-forming chamber of slag-forming fire chamber; it is introduced the second oxidation mixture into slag-forming chamber of slag-forming fire chamber, herewith the second oxidation mixture allows oxygen concentration 22-100 vol. %; it is burnt at least part of burnt component of the first fuel and, by selection at least part of the second fuel in slag-forming chamber of slag-forming fire chamber, with this forming separated ash component and forming gas flow, out from slag-forming fire chamber; it is collected at least part of separated ash component in the form of layer of liquid slag, contacting to at least part of inner surface of slag-forming chamber; it is passed at least part of gas flow, out from slag-forming fire chamber, from slag-forming chamber of slag-forming fire chamber into burning space in melting furnace at temperature 1000-2500°C for heating feeding for formation of molten product, and it is extracted liquid slag from slag-forming chamber of slag-forming fire chamber.
EFFECT: increasing of maintainability of furnace and removing of blemishes in molten product.
17 cl, 2 dwg
