A 180-degree pipe elbow having one end extending beyond the other end and method of joining a 180-degree pipe elbow to lengths of cooling pipe to form a cooling panel for use in a furnace, boiler or other industrial heating apparatus that benefits from assistance of a cooling panel. Having one end of the elbow extend beyond the other end of the elbow enables the one end to be joined to a length of pipe by welding whereby the joining may be by automatic welding which will reduce manufacturing costs and ensure a quality weld.

A flame holder system includes a support structure configured to support a plurality of burner tiles within a furnace volume. The support structure includes a frame supporting a support lattice. A number of burner tiles are arranged in an array on the support lattice. The support structure is configured to be assemblable without tools inside the furnace volume, using components that are sized to fit through an access port in a wall of the furnace.

A monolithic refractory structure includes: a monolithic refractory; a support body which supports the monolithic refractory; and a heat-resistant fiber support material which is buried in the monolithic refractory in a state of being connected to a support surface of the support body. The heat-resistant fiber support material includes a heat-resistant fiber rope which is formed of an inorganic fiber and extends along an X-axis direction perpendicular to the support surface, and a ratio L1/L2 of an X-axis direction length L1 of the heat-resistant fiber rope to an X-axis direction length L2 of the monolithic refractory is 0.35 or more and 0.95 or less.

A combustion system includes a fuel and oxidant source, a first distal flame holder body, a second distal flame holder body, and a thermal load. The fuel and oxidant source outputs fuel and oxidant. The first and second distal flame holder bodies simultaneously or alternately hold combustion reaction portions of the fuel and oxidant and/or of combustion products. The thermal load receives thermal energy from the first and second combustion reaction portions.

A sintering apparatus is provided. The sintering apparatus includes a case having an internal space formed therein and including a door provided in a front portion thereof to open and close the internal space, a magnetron coupled to the case and oscillating microwaves toward the internal space, a heat insulating unit disposed in the internal space to form a chamber space and blocking transmission of heat of the chamber space to the internal space, a susceptor unit disposed in the chamber space and having a sintering space in which a to-be-sintered material is accommodated, and a cooling unit cooling at least one of the case or the chamber space.

A 180-degree pipe elbow having one end extending beyond the other end and method of joining a 180-degree pipe elbow to lengths of cooling pipe to form a cooling panel for use in a furnace, boiler or other industrial heating apparatus that benefits from assistance of a cooling panel. Having one end of the elbow extend beyond the other end of the elbow enables the one end to be joined to a length of pipe by welding whereby the joining may be by automatic welding which will reduce manufacturing costs and ensure a quality weld.

Provide is an annealing furnace, a method of constructing the annealing furnace, and a structure for prefabrication which make it possible to use a prefabricated construction method for the annealing furnace even in a long length. The annealing furnace includes a case, and plural rows of rolls at the top and the bottom of the inside of the case, the rolls being configured to convey a steel strip. The annealing furnace includes: horizontally parting faces where a body of the furnace can be horizontally divided, wherein each of horizontally parted sections parted by the horizontally parting faces further has vertically parting faces where the horizontally parted sections can be divided in a direction vertical to a longitudinal direction of the body.

Provide is an annealing furnace, a method of constructing the annealing furnace, and a structure for prefabrication which make it possible to use a prefabricated construction method for the annealing furnace even in a long length. The annealing furnace includes a case, and plural rows of rolls at the top and the bottom of the inside of the case, the rolls being configured to convey a steel strip. The annealing furnace includes: horizontally parting faces where a body of the furnace can be horizontally divided, wherein each of horizontally parted sections parted by the horizontally parting faces further has vertically parting faces where the horizontally parted sections can be divided in a direction vertical to a longitudinal direction of the body.

A corner block for a glass furnace tank. The corner block has an outer surface including: upper and lower surfaces delimiting the length of the corner block, right and left surfaces to be in contact with corresponding surfaces of adjacent blocks, a hot face to be in contact with the environment inside the tank, and a cold face, opposite the hot face. A main portion of the corner block extends, over more than 80% of the length of the corner block, between two limiting upper and lower transverse planes. The hot face is edge-free. An edge is a line along which the hot face has a break in slope greater than 25. The hot face has a profile that is convex in any transverse sectional plane in the main portion.