An apparatus for feeding and preheating a metal charge toward a melting furnace of a melting plant, comprising at least one conveyor channel for said metal charge, at least one hood disposed above said conveyor channel and scrap detection means able to identify the profile of the metal charge entering said conveyor channel. The present invention also concerns a plant for melting metal comprising said apparatus, and a method to feed and preheat a metal charge.

An apparatus is disclosed for a split spray-cooled roof for a tilting metallurgical furnace. The split spray-cooled roof has a center, a first hollow metal roof section and a second hollow metal roof section. The first and second hollow roof sections are attached together along a prescription split line. The prescription split line having a first split line and a second split line, wherein the first split line is not aligned with the second split line and wherein the first and second split line are not aligned with the center.

An apparatus is disclosed for a split spray-cooled roof for a tilting metallurgical furnace. The split spray-cooled roof has a center, a first hollow metal roof section and a second hollow metal roof section. The first and second hollow roof sections are attached together along a prescription split line. The prescription split line having a first split line and a second split line, wherein the first split line is not aligned with the second split line and wherein the first and second split line are not aligned with the center.

A device for mounting and/or dismantling staves on/from an inner wall of a shaft furnace, the device including a circular monorail for supporting at least one stave positioning hoist, where the monorail is divided into at least four separate arc portions, where each arc portion is connected to a neighboring arc portion by means of a rotatable connection, the arc portions are moveable between an unfolded position, in which the arc portions form a circular monorail, and a folded position, in which the overall size of the monorail is, in one direction, reduced.

Embodiments disclosed herein are directed to integrated combustion assemblies including a perforated flame holder, combustion systems that include one or more integrated combustion assemblies, and related methods. For example, an integrated combustion assembly may be placed into service (e.g., integrated into a combustion system) as a complete and/or replaceable unit, such that elements and/or components of the combustion assembly are preassembled and no further assembly is required at the installation site.

Methods and apparatus for constructing refractory structures, e.g., glass furnace regenerator structures and/or glass furnace structures having walls formed of refractory block and buck stays externally supporting the walls are provided. Opposed pairs of supports are connected to at least a respective one of the vertically oriented buck stays with cross-support beams spanning the refractory structure between a respective pair of the supports. An overhead crane assembly is supported by the cross-support beams. In such a manner, refractory components of the refractory structure (e.g., refractory wall blocks and/or refractory checker bricks) may be installed using the overhead crane assembly.

A lining machine that includes a base frame, a rail group, a feed apparatus, a lift apparatus and a working platform, the rail group being mechanically fastened to the base frame and the rail group having at least one rail arrangement. The lift apparatus has a roller carriage and a lift unit located on the roller carriage, the roller carriage being provided on the rail arrangement so as to be movable between an installation position and an operating position. The lift unit is connected to the working platform and is designed to lower the working platform into the converter via the converter opening, and the feed apparatus has a roller conveyor, one end of which ends at the lift apparatus.

Methods and apparatus are provided for constructing refractory structures, e.g., glass furnace regenerator structures and/or glass furnace structures formed of refractory components, the refractory structure being housed within a building having a roof support elements. Cross-support beams are provided to latitudinally span the refractory structure and are suspended from roof support elements associated with the building housing the refractory structure by a suspension support system attached to the cross-support beams. An overhead crane assembly may thus be supported by the cross-support beams.

An induration machine includes a travelling grate for transporting bulk material along a transport direction from a heating zone for heating and/or drying the material to a cooling zone for cooling the material by cooling gas. The machine includes a hood disposed over the travelling grate having a first hood section in the heating zone and a second hood section in the cooling zone; and two recuperation ducts for guiding used cooling gas from the second hood section to the first hood section. The recuperation ducts are disposed on opposite sides of the hood, are laterally offset with respect to the hood, and are connected to the second hood section by a V-shaped gas collector duct. Each recuperation duct is connected to the first hood section by at least one gas supply duct and has at least one dust purge opening disposed in the lowermost part of the recuperation duct for purging dust from the recuperation duct.

Methods and apparatus for constructing refractory structures, e.g., glass furnace regenerator structures and/or glass furnace structures having walls formed of refractory block and buck stays externally supporting the walls are provided. Opposed pairs of supports are connected to at least a respective one of the vertically oriented buck stays with cross-support beams spanning the refractory structure between a respective pair of the supports. An overhead crane assembly is supported by the cross-support beams. In such a manner, refractory components of the refractory structure (e.g., refractory wall blocks and/or refractory checker bricks) may be installed using the overhead crane assembly.