Can middle mouth of a river of wrapping molten steel super -heated rate of adaptation

The utility model belongs to the technical field of the ferrous metallurgy, specifically say, the utility model relates to a can middle mouth of a river of wrapping molten steel super -heated rate ofadaptation. This mouth of a river comprises mouth of a river body and mouth of a river overcoat, and mouth of a river overcoat can be assembled to the body of the mouth of a river on, also can followmouth of a river body and pull down, and the radiating effect in the mouth of a river with higher speed can also be played outside playing the conventional function at the mouth of a river to mouth ofa river body decapacitation, and mouth of a river overcoat can play the radiating effect in the mouth of a river that delays, mouth of a river body with the mouth of a river overcoat cooperation useand to play the effect of wrapping the molten steel super -heated rate in the middle of adjusting. Through the quantity that increases or reduce mouth of a river overcoat fixed on the outer wall of the mouth of a river, can incr