Abstract: Refractory components (e.g. crown or rider arches associated with a refractory structure such as coke ovens, glass furnaces, regenerators and the like) are provided by multiple refractory members bonded to one another by a bonding agent to form an integral self-supporting structure.

Abstract: Glass furnace regenerators having opposed pairs of side and end walls formed of refractory blocks, a crown arch assembly forming an arched roof of the regenerator, and a rider arch assembly forming an interior floor of the regenerator are provided, wherein at least one of the crown arch assembly and rider arch assembly is formed of adjacently positioned one-piece monolithic pre-cast structures of refractory materials.

Abstract: Apparatus and methods are provided whereby a component can be cleaned while the furnace is operational. Additionally, particulates that have accumulated on the component can be collected and retained. The apparatus may include a portable frame, a tubular lance supported by the frame and having a nozzle at a distal end thereof, and a suction generator operatively connected to a proximal end of the lance to generate a suction at the nozzle. Manipulation of the lance to move the nozzle across a component allows accumulated particulates to be removed therefrom through the lance.

Abstract: Apparatus for repairing a refractory body, such as a furnace wall by projecting combustible particles in an oxygen-rich carrier gas against such body to cause oxidation of combustible particles in a reaction zone adjacent such body and thereby the generation of heat required for dressing such body or forming a refractory weld mass thereon, wherein the combustible particles are introduced into a first gas and oxygen-rich gas is forced through an entrainment zone 6 in which it produces an aspirating effect whereby a flow of combustible particles and first gas is induced into the entrainment zone 6 and the induced flow of combustible particles and first gas is carried along a conduit 9 and a lance 21 with the oxygen-rich gas to the reaction zone.

Abstract: A process of repairing a refractory body, including the steps of a. introducing combustible particles into a first gas stream containing no more than 18% oxygen by volume; b. causing an oxygen-rich gas stream to flow through a particle entrainment zone into a reaction zone adjacent a refractory body to be repaired so as to produce an aspirating effect within the particle entrainment zone effective to induce a flow of the first gas stream containing the combustible particles into the particle entrainment zone and through to the reaction zone; and c. projecting the combustible particles entrained in the oxygen-rich gas stream against the refractory body to cause oxidation of the combustible particles in the reaction zone adjacent the refractory body and generate sufficient heat for one of dressing the refractory body or forming a refractory weld mass thereon.