Abstract: Ladle covers are insulated with refractory ceramic fiber modules. An outer portion of a lower part of the cover conforming to the shape of the ladle rim is insulated with trapezoidal modules. A central portion beneath the cover within the outer portion is insulated with rectangular modules, which may be of less thickness than the trapezoidal modules.

Abstract: Attachment structure is provided for mounting refractory ceramic fiber insulation units as components of ladle preheater insulating and sealing rings. The attachment structure provides a natural keying action with radial sliding motion of the insulation units during installation. The structure is particularly suitable for use on surfaces which are warped or uneven.

Abstract: Sealing rings are provided for ladle preheaters. The rings are mounted for relative movement into a stable, suspended position over the primary lining. Refractory fiber insulation is provided in the form of modules on an outer support ring. The rings seal about the ladle rim adjacent burner and flue openings of the preheater. Since the sealing ring may move over the primary lining, the ladle rim forms a seal with the modules and also forces the support ring into a second seal with the primary lining when the lining is refractory ceramic fiber.

Abstract: Sealing rings for ladle preheaters. The rings may be either fixedly or removably mounted with the ladle preheater frame. The rings seal about the ladle rim adjacent burner and flue openings of the preheater. Refractory fiber insulation is provided for insulating the space between the rim of the ladle and the preheater to prevent hot gas escaping. The refractory fiber is arranged into trapezoidal units which are easily installed and replaced.

Abstract: Refractory fiber blankets are made suitable for use as baffles, curtains or partitions in furnaces and other high temperature equipment by reinforcement fabric woven from high temperature refractory fiber yarn. The curtains so formed are easily installed and replaced. The curtains exhibit insulation characteristics suitable for use at elevated (2200.degree. F. and above) temperatures and capabilities of resisting damage from impact by the furnace load or manipulators of such a load.

Abstract: Fluid containing support members of walking beam mechanisms for moving beams and the like in furnaces are insulated with refractory ceramic fiber blanket modules. The modules are wrapped about the support members and attched with attachment members. Protective coverings are provided to reduce exposure of the fiber materials from slag from the beams.

Abstract: A prefabricated insulating structure is formed from a ceramic fiber blanket, folded into plural folds, for insulating a corner formed by two walls within a furnace. The folded blanket is mounted in a curved configuration to a single attachment mounting such that each of the two ends of the curved folded blanket is adjacent one of the walls at the corner. The folded blanket is mounted to the attachment mounting by two support members, each of the support members being mounted in a fold adjacent one of the ends of the folded blanket.

Abstract: Prefabricated insulating blocks are formed from ceramic fiber blankets folded into plural folds, with adjacent layers being needled together to intermingle the fibers of adjacent layers to form composite blocks. The blankets are mounted to attachment channels by support beams, mounted within folds in the blankets, and the folds of the blanket surround and enclose the support beams to protect them from heat and corrosive gases in the furnace.

Abstract: A new and improved apparatus and method for lining walls of furnaces, and other high temperature equipment, wherein insulating blankets are folded and supports are mounted in the folds thereof for mounting to the furnace wall to insulate the furnace. In some applications, the lining apparatus is formed into preformed insulation blocks for installation as insulating linings.