Abstract: Water-cooled pipes of the type utilized to support steel workpieces in reheat furnaces and the like are insulated by preformed, rigid refractory members. Threaded studs are welded to opposing surfaces of the pipe or the web between a pair of pipes. The pipe(s) are then covered by a ceramic fiber blanket. A pair of the refractory members, each of which contains an aperture through which one of the studs is received, is positioned so as cover the pipe(s) and blanket. Nuts are fastened to the studs to hold the refractory members in place. The refractory members are sized and positioned so that gaps exist between them so as to allow for thermal expansion. These gaps may be filled with blanket insulation or heat-resistant plastic. The remaining portions of the apertures are also filled with heat-resistant plastic.

Abstract: A refractory brick wall system for towers and the like which includes an outside casing and a plurality of bricks laid up in a pattern on the inside of the casing. Tie-back devices secure the bricks to the casing and allow for relative horizontal and relative vertical movement between the bricks and the casing. A plurality of shelves are fixed to the inside of the casing at vertically spaced intervals to provide support for the bricks in vertical sections thereof. A lightweight, insulating refractory material is cast between the casing and the bricks. The bricks themselves are shaped with ring and groove sides for interlocking of the bricks in a laid-up wall construction thereof.

Abstract: A modular door jamb and lintel system for an industrial furnace having an access door opening. A module is provided with a pair of spaced, generally vertical door jambs of precast refractory material. A refractory lintel spans the door jambs and combines therewith to define a frame for the access opening. Hangers are provided on the lintel to facilitate transporting and installing the lintel in position at the access opening. Fasteners are provided on at least the door jambs to facilitate securing the door jambs to appropriate structural members about the access opening.

Abstract: A refractory component which is vacuum-formed from ceramic fibres and which is to be mounted on the external casing or frame structure of a furnace to form part of heat-resisting lining is provided with an internal reinforcement in those parts of the component nearest the casing or frame structure and by which the component is to be mounted on the casing or frame structure. The reinforcement is embedded in the component during formation thereof and is of stiff open mesh form extending in a plane parallel to the general plane of the part of the casing or frame structure on which the component is mounted. The reinforcement is made from heat-resisting metal alloy, refractory clay or recrystallized alumina and is preferably of channel-section or other three dimensional form to increase its stiffness.

Abstract: High temperature enclosures such as furnaces have a lining of refractory/insulating modules arranged in side to side relation after the manner of bricks and secured to metal supporting structure by means of fastening members which are disposed between adjoining modules, have laterally and oppositely directed projections which penetrate the facing sides of such modules, and a foot which is secured to the structure. A packing strip of a ceramic fibre material is arranged under compression between adjoining modules. Each module has the form of a hollow box and consists of a block moulded in one piece from ceramic fibre with a front wall, the front face of which constitutes the hot face of the module, and side walls. The module may include a block of insulating material which is secured on the back of the ceramic fibre block and the enclosed cavity may contain further insulating material.

Abstract: A refractory and insulating module for use in lining a furnace or other high temperature enclosure comprises a block having a front wall and side walls the outer faces of which side walls are inclined inward from front to back of the block, the rear of the block being open to provide a cavity. The front face of the front wall of the block is of lower density than the rear face of the front wall. The block is produced from a ceramic fiber slurry using a suction technique in conjunction with a mould shell which forms every face of the block except the front (hot) face of the front wall, the shell being formed with multiple apertures. The rear cavity may accommodate layers of other insulating materials according to the temperatures to be withstood and the temperature gradient to be achieved. The block can be secured to a furnace casing by means of fastening elements which are pushed into the outer sides of the side walls of the block.