Process method for continuously recycling hot casting residues into LF (ladle furnace)

The invention discloses a process method for continuously recycling hot casting residues into an LF ladle furnace. The process method comprises the steps that S1, molten steel is subjected to pre-deoxidation treatment; s2, the molten steel subjected to pre-deoxidation is subjected to hot-state casting residues in a refining-continuous casting span; S21, for a steel ladle in which the overheat-state casting residues are not recycled, the casting residues are directly poured into the surface of the molten steel; for the steel ladle in which the overheat casting residues are recycled, part of the casting residues need to be poured out before the steel ladle is recycled, and then the remaining steel residues are directly poured into the surface of molten steel; and S22, after the casting residues are received, a steel ladle is conveyed to an LF ladle furnace treatment station, molten steel is heated for slagging, and when the temperature is increased to 1575 DEG C or above, 0.85-1.75 kg/t lime is added for furthe