High-temperature-resistant zirconia slag line ring combined submersed nozzle

The utility model discloses a high temperature resistant zirconia slag line ring combination submersed nozzle, which comprises a bowl part (1), a body (2) and a combination slag line (3), the bowl part (1) is of a funnel-shaped structure, the combination slag line (3) is composed of a zirconia slag line ring (4), a body slag line (5) and an inlay (6), the zirconia slag line ring (4) is located on the outer side of the body slag line (5), and the body slag line (5) is located on the outer side of the body slag line (5). The inlay (6) is positioned between the zirconium oxide slag line ring (4) and the body slag line (5), and the zirconium oxide slag line ring (4) and the body slag line (5) are specially provided with zigzag structures (7). According to the utility model, the slag line part is spliced by combining the zirconium oxide slag line ring and the body slag line, so that the thermal shock resistance of molten steel and the erosion resistance of molten slag and molten steel of the slag line part are imp