Scouring-resistant and wear-resistant tundish upper gate with ultra-long service life

The invention discloses a scouring-resistant and wear-resistant tundish upper gate with ultra-long service life. The scouring-resistant and wear-resistant tundish upper gate comprises a tundish upper gate body and an iron shell, the tundish upper gate body is divided into a sliding plate face body, a sliding plate face zirconium face, an upper body, an upper body zirconium oxide core and a molten steel channel, the upper body zirconium oxide core is located in an inner cavity of the tundish upper gate body, and the bottom is clamped to an inner cavity of the sliding plate face zirconium face; and the sliding plate face zirconium face is of a circular structure, and the planeness after the sliding plate face zirconium face, the upper body zirconium oxide core and the sliding plate face body are assembled ranges from 0.05 to 0.2. According to the scouring-resistant and wear-resistant tundish upper gate, on one hand, the service life of the upper gate is ensured, and the service life of the upper gate is coincid