Self-anchoring expansion gap assembly for a gasifier

Details Self-anchoring expansion gap assembly for a gasifier Self-anchoring expansion gap assembly for a gasifier

F - Mech Eng,Light,Heat,Weapons

23

M

F23M 5/00 (2006.01) F16J 15/06 (2006.01) F16J 15/10 (2006.01)

Patent

CA 2441919

A self-anchoring expansion gap assembly (42) for refractory lined vessels such as a gasifier (10) includes a substantially annular insulating blanket structure (66, 68) formed of compressible refractory material. A coil of rope (62) formed of relatively incompressible refractory material is positioned proximate an outer periphery of the insulating blanket structure. The expansion gap assembly is placed in an expansion gap of a gasifier, for example, such that the coil of rope aligns with an annular channel (30) formed in the refractory lining of the gasifier at the expansion gap. Compression of the expansion gap assembly locks the coil of rope in the annular channel of the expansion gap thereby resisting vacuum pullout. The coil of rope can be formed as a single coil or a plurality of substantially concentric coils preferably from a single length of refractory rope.

L'invention concerne un assemblage de joint de dilatation autofixant (42) pour des vaisseaux alignés réfractaires comme un gazéifieur (10) comportant une structure de couverture isolante quasiment annulaire (66, 68) composée de matériau réfractaire compressible. Une spire de corde (62) formée de matériau réfractaire relativement incompressible est placée à proximité d'une périphérie externe de la structure de couverture isolante. L'assemblage de joint de dilatation est situé dans un joint de dilatation d'un gazéifieur, par exemple, de manière à ce que la spire de corde s'aligne avec un canal annulaire (30) présent dans l'alignement réfractaire du gazéifieur au niveau du joint de dilatation. La compression de l'assemblage du joint de dilatation verrouille la spire de corde dans le canal annulaire du joint de dilatation, résistant ainsi à la remontée de vide. La spire de corde peut être formée comme une spire unique ou plusieurs spires quasiment concentriques, de préférence à partir d'une seule longueur de corde réfractaire.

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