Metallurgical vessel and method of making the refractory...

Details Metallurgical vessel and method of making the refractory... Metallurgical vessel and method of making the refractory...

B - Operations, Transporting

22

D

B22D 41/12 (2006.01) B22D 41/02 (2006.01) B28B 19/00 (2006.01) C21C 5/44 (2006.01)

Patent

CA 2059132

The invention relates to a metallurgical vessel, in particular a transport ladle or a treating ladle, for the production of steel with a bottom (2b) having a refractory lining (3) with a basic working layer (5). In order to create a durable lining it is provided that the working layer (5) consists at least in part of dry basic bulk material, the upper side of which is covered, before the vessel (1) is heated for the first time, by a chemically hardened protective layer (6) and which, after the vessel (1) has been filled, is partly present as a monolithic layer or the upper side of the working layer (5) is covered, before the vessel (1) is charged for the first time, by a monolithically fritted basic layer formed by heating the bulk material. The invention furthermore relates to a method of making the refractory linings of such vessels.

Cette invention concerne un récipient métallurgique, plus particulièrement une poche de transport ou une poche de traitement servant à la production d'acier, munie d'un fond (2b) à garnissage réfractaire (3) comprenant une couche de travail de base (5). Pour créer un garnissage durable, la couche de travail (5) est au moins partiellement constituée d'un matériau de base sec en vrac, sa face supérieure étant recouverte, avant le réchauffement initial du récipient (1), d'une couche protectrice solidifiée chimiquement (6) qui, après le remplissage du récipient (1), est partiellement présente comme couche monolithique, à moins que la face supérieure de la couche de travail (5) ne soit couverte, avant le premier remplissage du récipient (1), d'une couche de base monolithiquement frittée obtenue par le réchauffement du matériau en vrac. Cette invention porte également sur une méthode de production des garnissages réfractaires correspondant à ce type de récipients.

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