Patent ID: 6575738
Filing Date: 2003-06-10
Classification: F27D

Abstract:
A pair of composite refractory tiles for use in insulating an elongated fluid-cooled furnace member of a metallurgical furnace, each tile comprisinga rigid cast refractory shell adapted to be disposed about a portion of the fluid-cooled furnace member, said shell having an inner face and an opposed outer face, opposed end walls corresponding to the longitudinal direction of the elongated fluid-cooled furnace member, and two edge walls extending between said end walls, said inner face having selected portions for contacting the fluid-cooled furnace member, and remaining portions for being radially spaced from the fluid-cooled furnace member and thereby defining a hollow; a ceramic fiber blanket disposed within said hollow, material of said ceramic fiber blanket having a higher insulating k value than material of said cast refractory shell; and at least one attachment means disposed in selected portions of said rigid cast refractory shell, each said attachment means being so constructed and arranged so as to be disposed within portions of said cast refractory shell having temperatures lower, when in use, than temperatures of remaining portions radially spaced from the fluid-cooled furnace member and having said ceramic fiber blanket disposed in said defined hollow.