METHOD OF PRODUCING FUSED ELECTROCORUNDUM Russian patent published in 2025 - IPC C01F7/30 

FIELD: metallurgy.

SUBSTANCE: invention relates to non-ferrous metallurgy, namely to production of fused corundum in electric furnaces (electrocorundum) and can be used in production of various fused materials. Method includes loading alumina into an electric furnace, water cooling of the furnace casing wall, melting of alumina at constant electric power, draining of molten electrocorundum from the furnace, after draining the molten electrocorundum, the furnace is switched on again, the electrocorundum melting is carried out at the full power of the furnace, and the thickness of the wall of the scull is maintained equal to 170-210 mm, at that, before melting, calculating the skull thickness dependence on the furnace casing wall temperature, and during the fused corundum melting, continuous thermal control of the skull walls is performed by adjusting the furnace shell power and cooling water flow rate based on the calculated skull thickness value from the furnace shell temperature readings, wherein furnace shell temperature readings are obtained by thermocouples arranged on furnace shell wall while water consumption for cooling of scull walls makes 47-50 m³/min.

EFFECT: increased efficiency of furnace and reduced consumption of electric power per unit of product.

3 cl, 1 dwg, 1 tbl, 7 ex