A slag door arrangement (10) for a metallurgical furnace (1) includes a furnace vessel (2) with a slag tunnel (8) having a rectangular opening cross section extending laterally through the furnace vessel (2). A pivoting movement of the slag door about a horizontal pivoting axis and a lifting movement of the slag door in a direction perpendicular to the horizontal pivoting axis are independent of each other. A method for cleaning a slag opening of such a metallurgical furnace (1) includes pivoting the slag door to perform a cleaning movement from a position of the slag door in the slag tunnel near the interior of the furnace towards the outside of the furnace out of the slag tunnel at controllably different distances (clearances) from the bottom of the slag opening or of the slag tunnel.

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.

A processing apparatus for a thermal treatment of a workpiece is presented. The processing apparatus includes a processing chamber, a workpiece support disposed within the processing chamber, a rotation system configured to rotate the workpiece support, a gas delivery system configured to flow one or more process gases into the processing chamber from the a first side of the processing chamber, one or more gas exhaust ports for removing gas from the processing chamber such that a vacuum pressure can be maintained, one or more radiative heating sources disposed on the second side of the processing chamber, one or more dielectric windows disposed between the workpiece support and the one or more radiative heating sources, and a workpiece temperature measurement system configured at a temperature measurement wavelength range to obtain a measurement indicative of a temperature of a back side of the workpiece.

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.

A device for maintaining efficient a tapping channel of a furnace for the production of metal, includes a bearing structure and a mobile support means associated with the bearing structure. An operating arm is associated with the support means and terminally provided with a rod. A linear positioner is configured to move the support means along an elongation axis. A corresponding method for maintaining efficient a tapping channel of a furnace for the production of metal is also provided.

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.

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.

A multi-chamber type heating unit to heat a blank includes: a lower housing unit; an intermediate housing unit installed in an upper portion of the lower housing unit; and an upper housing unit installed in an upper portion of the intermediate housing unit. A plurality of intermediate housings are stacked to form the intermediate housing unit, and a heating unit to heat a blank is installed in each of the intermediate housings. Moreover, the intermediate housings are formed in the shape in which upper and lower portions thereof are opened, and an opening is formed in the front for a door to be inserted thereinto, and door sealing units provided on the intermediate housing portion and provided to seal the door when the door is closed.

Embodiments of the inventive concept provides an apparatus for treating a substrate. An embodiment of the inventive concept comprises a housing having a process space therein; and a supporting unit supporting a substrate in the process space, and the supporting unit comprises a supporting plate supporting the substrate; a heater member provide in the supporting plate and heating the substrate; and a cooling unit provided below the heater member and cooling the supporting plate, the cooling unit comprises a cooling plate spaced apart from the heater member; and a nozzle provided in the cooling plate, and supplying a cooling gas to a bottom surface of the heater member; and a driver moving the cooling plate between a standby position spaced a first distance apart from the heater member and a cooling position spaced a second distance apart from the heater member, the second distance is shorter than the first distance.