MELTING UNIT FOR STEEL PRODUCTION Russian patent published in 2022 - IPC C21C5/46 F27B3/10 

FIELD: metallurgy.

SUBSTANCE: melting unit is designed for an operating mode without melting current or for an operating mode with melting current, wherein the operating mode of the melting unit can be changed by means of replacement of a furnace vault. In this case, a conical furnace vault for the operating mode without melting current contains at least one hole made with the possibility of input of at least one upper lance for injection of technological gas, and a vault for the operating mode with melting current contains at least one hole made with the possibility of input of at least one graphite electrode to an upper part of the furnace. The furnace vault for the operating mode with melting current is made with the possibility of being replaced, so that at least one graphite electrode can be introduced into a hearth part.

EFFECT: invention allows for recycling of source materials in a solid and/or liquid aggregate state and reduction in the duration of melting, taking into account different amount of steel, when using different source materials, with simultaneous reduction in carbon dioxide emissions.

5 cl, 2 dwg