Tundish venting spout

The traditional tundish upper nozzle and immersion nozzle are used to prevent clogging at the expense of life. The tundish venting nozzle is developed to solve the above contradictions. From the perspective of structure and function, the middle bag is ventilated. The water inlet is divided into two types, one is non-fast changeable venting water inlet, and the other is ventilating quick change water inlet (quick change means quick replacement of immersion nozzle to ensure continuous pouring Steel is not interrupted). In particular, the appearance of the gas-filled quick-change nozzle has greatly improved the overall life of the tundish under the current relatively low immersion nozzle life. The overall service life of the slab tundish in this way has exceeded the average. 10 hours.