Refractory nozzle

B - Operations – Transporting – 22 – D

Patent

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Details

B22D 41/50 (2006.01) B22D 41/08 (2006.01) B22D 41/40 (2006.01)

Patent

CA 2308469

A refractory nozzle comprises upper and lower members (20 and 22) having matching tapered bores. The members fit together so that the bores match, and are secured in the hole (16) in the bottom of a metallurgical vessel by a retaining plate (66) and a bottom plate (86). The bottom plate (86) can be removed to allow the lower member (22) to be replaced without disturbing the upper member.

Cette buse réfractaire est constituée d'un élément supérieur (20) et d'un élément inférieur (22) présentant des perçages coniques complémentaires. Ces éléments, qui s'adaptent l'un sur l'autre de façon que les perçages coïncident, sont bloqués dans le trou (16) du fond du récipient métallurgique par une platine de retenue (66) et une platine de fond (86). Cette platine de fond (86) peut être déposée de façon à permettre le remplacement de l'élément inférieur (22) sans avoir à intervenir sur l'élément supérieur.

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