Pouring tube - slides on head plate for exchange and controls metal flow by sliding in the pouring position

摘要

The appts. to exchange a pouring tube at a metallurgical vessel controls the max. metal flow through the pouring opening (7), pref. to zero, by sliding the pouring tube (1) with its head plate (3). When the pouring tube (1) with it s head plate (3) is in the operating position, the drive (6) to slide the tube and plate is used to regulate the metal flow. Pref. the sliding drive (6) can be engaged and disengaged at the head plate (3) for the pouring tube (1). An exchangeable fireproof base plate (8) is near the pouring opening (7) of the vessel (2), for the head plate (3) of the pouring tube (1) to bear against when it is in the pouring position, in a sealed fit. A further fireproof base plate, at a height displacement from the tube head plate (3), cab be inserted on spring-loaded rails by a sliding drive into the pouring position, where the tube head plate (3) lies against it in a sealed fit while the base plate lies in a sealing action at the pouring opening zone (7) of the vessel (2). The worn pouring tube (1"), together with the used base plate is pushed into a removal setting, pref. by pressure from the new base plate. The tube (1) and head plate (3) sliding action controls the max. metal flow through the opening (7) of the vessel (2) pref. to zero. The directions of the pouring tube (1) and base plate movement are either with or against each other, and pref. by 90 deg. against each other, and pref. simultaneous. The pouring tube (1) and head plate (3) are in a one-piece unit.