Hemispherical dome for refractory vessel

Details Hemispherical dome for refractory vessel Hemispherical dome for refractory vessel

F - Mech Eng,Light,Heat,Weapons

27

D

F27D 1/04 (2006.01) F27B 1/14 (2006.01) C10J 3/00 (2006.01) F27D 1/16 (2006.01)

Patent

CA 2416024

A refractory vessel comprising a metal shell having a generally cylindrical portion and an upper hemispherical dome. A refractory liner has a cylindrical portion spaced inwardly from the cylindrical portion of the metal shell and a hemispherical portion spaced inwardly from the dome. The hemispherical portion has a plurality of layers of refractory brick forming successively higher and lesser diameter rings. At least a portion of the rings have mating keys and keyways to restrain the layers of bricks in a vertical direction. A refractory vessel that can be used as a gasifier for black liquor includes a generally cylindrical metal shell having a dome. A refractory shell has a cylindrical portion spaced inwardly from the metal shell and a dome portion that is spaced inwardly from the metal dome. The refractory shell is sized to provide an expansion gap between the liner and the metal shell. A selectively crushable liner is positioned in the gap. The liner has a predetermined yield stress that will provide controlled resistance to expansion of the refractory shell.

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