Abstract: A brick hearth system includes a rigid containment shell in which a concave bottom is lined with a hearth refractory sub-layer and hearth brick working layer. The outer perimeter of the hearth refractory is ringed with thrust blocks to compress the whole toward the center and to thereby deny gaps from forming between the separate bricks. Many individual thrust rods penetrate the outer bottom of the containment shell, and such are used to transmit compression forces generated outside the shell to be applied against the thrust blocks in unison. Each thrust rod receives an adjustable amount of inward force from a spring, acting either directly or through a beam or rocker arm. These are anchored to and use the hoop strength of the containment shell as leverage. As the hearth brick working layer grows during its service life, the ring of thrust blocks grows in diameter as well inside the margins provided within the containment shell.

Abstract: A sill and door jamb assembly providing an opening in an electric arc furnace, the sill and door jamb assembly having a sill block assembly and two jamb block assemblies. The sill block assembly having side-by-side sill blocks, each of the sill blocks being positioned side-by-side to form the sill block assembly and having an upper end and a lower end. The lower end of the sill block assembly is confined within a plurality of courses of the refractory bricks. Each jamb block assembly having a plurality of jamb blocks positioned side-by-side. Each of the jamb block assemblies having a lower end and an inner surface abutting the distal ends of the sill block assembly. The inner surfaces of the jamb block assemblies and the upper surface of the sill block assembly form the slag opening in the furnace.

Abstract: A brick hearth system comprises a rigid containment shell in which a concave bottom is lined with a hearth refractory sub-layer and hearth brick working layer. The outer perimeter of the hearth refractory is ringed with thrust blocks to compress the whole toward the center and to thereby deny gaps from forming between the separate bricks. Many individual thrust rods penetrate the outer bottom of the containment shell, and such are used to transmit compression forces generated outside the shell to be applied against the thrust blocks in unison. Each thrust rod receives an adjustable amount of inward force from a spring, acting either directly or through a beam or rocker arm. These are anchored to and use the hoop strength of the containment shell as leverage. As the hearth brick working layer grows during its service life, the ring of thrust blocks grows in diameter as well inside the margins provided within the containment shell.

Abstract: A tile anchoring system for use in reactors and other furnace like equipment which involves the use of a tile that contains various internal parts. According to the various embodiments of the present invention, the tile is formed as more than one part. In the present invention, various techniques and parts are used to anchor tiles to surfaces wherein the various parts and the tiles themselves “snap” into place with one another and/or with an existing hexmetal mesh structure.

Abstract: A coke oven buckstay moving device and method which can be used to quickly, reliably, and smoothly repair buckstays compared to conventional methods and devices. The coke oven buckstay moving means includes a main car, a subcar, a frame, and securing means. The main car is used when repairing pillered buckstays that support oven walls of the coke oven, and moves on a coke side platform or a machine side platform. The subcar is placed on the main car, and can freely move forward and backward in a direction of a lengthwise direction of the coke oven. The frame is provided in a standing manner on the subcar. The securing members are mounted to the frame and are used to grasp and secure the buckstays. According to the method, a damaged portion of the buckstay is secured to the subcar, cut, and then removed. Reversing the steps, a replacement buckstay is secured to the subcar, moved into position, and welded into place. The subcar is detached, and the oven repaired.

Abstract: A high temperature industrial roof assembly having two refractory bricks with adjacent faces, opposing hanger recesses, a hanger rod extending from the recesses to the top of the assembly, the refractory bricks being held in an adjacent position by a securing device, a hanger rod with a locking mechanism at one end and a hook at the other end, a hanger having opposed refractory engaging projections adapted to engage the hanger recesses, a hanger rod hole allowing free rotation about the hanger rod end above the locking mechanism, and a locking mechanism engagement recess which when engaged with the locking mechanism prevents rotation of the hanger rod in relation to the hanger at 90 degree increments and provides that depression of the one end of the hanger rod into the locking mechanism engagement recess permits rotation of the hanger rod with respect to the hanger. The locking mechanism comprises opposing tabs.

Abstract: A wall lining for a furnace (10) includes a refractory layer (14) having a hot face (16) exposed to the interior of the furnace. A plurality of elements of a high thermal conductivity material (18), such as copper wires or rods, extend from the outer shell (12) of the furnace into the refractory lining (14). The elements (18) provide a continuous heat conduction path to the outer shell (12) of the furnace. A cooling jacket (22) removes heat from the outer shell. The elements (18) are dispersed in the refractory lining (14) to provide a substantially uniform temperature across the hot face of the furnace in the vicinity of the elements. The wall lining may be formed by fixing an array of the elements to the inside wall of the outer shell of the furnace and applying a refractory material to the inside wall.

Abstract: An insulation structure such as a cover provides desirable heat insulation for a heated metal container such as a ladle. The insulation structure is assembled in a manner affording ease of subsequent repair in high-wear areas of ceramic fiber insulation. The ceramic fiber insulation is at least partly in bundled form and the bundles are generally positioned so that fiber blankets are oriented in different directions in the structure, yet the fiber is all in snug fit and achieves highly efficient insulation.

Abstract: An insulation lining is formed of abutting modules. Each module includes a fiber blanket surrounded by a combustible sheet of material which compresses the fibers and holds the blanket in folded position. A hanger has spaced prongs extending from a support part which is disposed at one side of the module. The prongs pass through the blanket and extend beyond the opposite side of the module. A surface is provided on the support part for directly engaging the prongs of an adjacent module to stabilize adjacent modules and ensure that they are accurately located and maintained in operative position.

Abstract: A lining element for heat treatment furnaces comprises lining material consisting of insulating material, an elongate supporting element for transversely piercing the lining material, and elongate fastening members for attachment of the element to the interior furnace wall provided at both ends of the supporting element. The free ends of the fastening members are provided with projections extending transversely to the longitudinal direction of the fastening members at the height of a planar interior surface of the element, which surface will be closest to the interior furnace wall.

Abstract: The present invention pertains to building blocks, especially for erecting shielding walls in nuclear facilities. Each building block is made of a cubeshaped metal jacket consisting of steel plate, especially special steel, which jacket is closed on all sides and is filled with concrete. To facilitate the handling and to permit the erection of shielding walls with building blocks in fixed positions, the top surfaces and the bottom surfaces (2, 4) of the jacket (1) are provided with bulging formations in the form of projections (3) and depressions (4) [sic, (5)] which engage with each other between adjacent building blocks to mutually fix the positions of the building blocks.

Abstract: The present invention relates to a ceramic composite material having a high thermal conductivity. The ceramic composite material consists of a network of metal fibers embedded in a ceramic material and where the network of fibers on one side of the ceramic composite material extends out to the surface of ceramic composite material. A part of the metal fibers may be substituted by ceramic fibers and/or carbon fibers. Preferably, the area of the network of metal fibers occupies 60-95% of the total area of the surface wherein the network of metal fibers extends out to the surface of the ceramic composite material. The present invention further relates to a refractory lining for metallurgical smelting furnace wherein at least a part of the above described ceramic composite material is connected by a metallic bond to a cooled metallic part of the smelting furnace.

Abstract: The present invention relates to a ceramic composite material having a high thermal conductivity. The ceramic composite material consists of a network of metal fibers embedded in a ceramic material and where the network of fibers on one side of the ceramic composite material extends out to the surface of ceramic composite material. A part of the metal fibers may be subtituted by ceramic fibers and/or carbon fibers.Preferably, the area of the network of metal fibers occupies 60-95% of the total area of the surface wherein the network of metal fibers extends out to the surface of the ceramic composite material.The present invention further relates to a refractory lining for metallurgical smelting furnace wherein at least a part of the above described ceramic composite material is connected by a metallic bond to a cooled metallic part of the smelting furnace.

Abstract: An insulative panel prevents heat transfer from a molten metal melt. The panel comprises a reinforced refractory slab supported along its edges. An insulation layer is placed on top of the refractory slab, thereby creating a hot zone between the molten metal and the insulation layer and a cold zone in and above the insulation layer. Reinforcing members are placed in the cold zone on top or within the insulation layer vertically above reinforcing rods in the refractory slab. Hangers extending downwardly from the reinforcing members through the insulation layer and refractory slab are joined to the reinforcing rods for supporting the reinforcing rods in the hot zone by the reinforcing or support members in the cold zone.

Abstract: A thermally insulating block array is partially covered by thermal conducting sheets so as to enhance re-radiation of heat losses from a heated product in order to facilitate effective temprature control. The thermal conducting sheets preferably cover the face of the thermal insulating blocks which face the heated product and preferably cover the lateral surfaces of the blocks and portions of the rear surface to resist direct exposure of the thermal insulating block to the heated product.

Abstract: A refractory assembly for use in a roof in an ore reduction furnace is provided having a pair of refractory blocks with matchable corrugated surfaces. A corrugated plate is provided, with its corrugations having the same wavelength as and a different amplitude than the block corrugations. The plate is bound between the corrugated surfaces of the blocks so that the blocks are spaced apart by and supported on the plate. In the preferred embodiment, the corrugations are sine waves with the plate sine wave having an amplitude greater than the sine wave of the blocks. The entire assembly may be suspending as part of a furnace roof.

Abstract: A refractive block of ceramic material as a burner block or the like for furnace walls, is provided with a surrounding rib with recesses. A frame of suitably rigid and refractive angle bars encompasses the block and receives bolts extending transversely through the recesses and into or through the furnace wall. The bolts are anchored in both the frame and furnace wall and bear against the block inner face for securing the block in position, avoiding the danger of spawling or breaking out the block.

Abstract: Hanger and expansion plate structure for use with refractory brick employed in electric furnace roofs is disclosed which is designed for accommodating the variable, heat-induced expansion of such furnace bricks. The structure includes respective metallic plates having transverse, brick-engaging ribs with channels therebetween; the width of the ribs is greatest adjacent the hot face of the bricks so that the plates collapse or yield at the hot face under lateral brick expansion while remaining substantially intact adjacent the cold brick face. Thus, the variable expansion of the brick is accommodated without sacrifice of the overall integrity of the roof construction. Certain of the plates have oblique flanges which are received within complemental recesses in the bricks for supporting the latter.

Abstract: An external plating arrangement for improved effectiveness in sealing off the cold end face of a refractory body, wherein the side walls of the body are sheathed with metal plates and planar portions extend normally from the plates and overlie the cold end face for encasing the perimeter of the cold end face. A separate metal plate may cover the cold end face, the planar portions having a form of elongated tabs for overlying the end plate. Alternatively, the planar portions may be right triangular for completely covering the cold end face, or one of the planar portions may be rectangular for covering the cold end face, the other planar portions being elongated tabs overlying the rectangular plate.

Abstract: A refractory brick unit is disclosed which is resistant to heat induced expansion spalling by virtue of the provision of a metallic sleeve member around four sides of the brick body with the metallic envelope being constructed in a manner such that two adjacent side sections thereof are spaced from proximal side walls of the brick and supported in such disposition by elongated tabs integral with the sleeve member side sections and slidably received in complemental elongated depressions therefor in the opposed sidewall of the brick body. When the brick units are laid in side-by-side relationship with one side of a corresponding metallic side section abutting the side section of a proximal brick unit, the sleeve members as well as the brick units are able to undergo heat induced expansion without placing compression loads on the bricks which could cause spalling of the brick bodies.