Described herein is a sidewall suitable for use in a metallurgical furnace, and metallurgical furnace having the same. The sidewall has an upper wall, an outer wall coupled to an outer side of the upper wall, and extending downward from the outer wall. A sloped wall is coupled to an inner side of the upper wall. The sloped wall extends downward and inward from the upper wall. The sloped wall has a first surface facing the outer wall and a second surface facing a centerline of the sidewall. A spray cooling assembly is disposed between the sloped wall and the outer wall. The spray cooling assembly is configured to spray coolant on the first surface of the sloped wall.

An industrial plant for treating materials includes one or more lines for treating materials and one or more user devices and a system for supplying electrical energy. The power supply system includes a power supply circuit disposed in a site of the plant connected to the latter, and configured to supply electrical energy to said one or more user devices. A method to supply electrical energy to the plant is also disclosed.

Methods and systems for determining a feed rate (unit mass/unit time) of metallic scrap material in real time being charged to an electric arc furnace (EAF) is provided, in which the methods and systems determine the speed of the metallic scrap material in real time and the volume of the metallic scrap material in real time. The methods and systems also classify the metallic scrap material via a machine learning model based on digital images of the metallic scrap material and assign a density to the metallic scrap material. The feed rate is determined based on the speed and volume of the metallic scrap material and the assigned density.

Methods and systems for determining a respective mass associated with respective portions of the respective layers of metallic scrap material deposited into a charging-bucket associated with a batchwise-charged electric arc furnace (EAF) are provided, in which the methods and systems determine the respective masses associated with the respective portions of the respective layers of metallic scrap material based on (a) the respective volume of the respective portions of the respective layers of metallic scrap material and (b) the respective assigned densities assigned by a machine learning classification model based on digital images of the respective portions of the respective layers of metallic scrap material.

An assembly for pushing an electrode into a glass melting vessel can include a frame, a shaft, a pusher actuator, a contact mechanism, a master actuator, and a torque limiter. The contact mechanism can be attached to the shaft. The pusher actuator can be mounted to the frame and configured to cause translation of the shaft and the contact mechanism relative to the frame. The master actuator can be operatively connected to the pusher actuator such that operation of the master actuator causes operation of the pusher actuator. The torque limiter can be operatively connected between the master actuator and the pusher actuator, and can be configured to disengage when a rotational force on the master actuator exceeds a predetermined amount.

A lift plug for lifting a graphite electrode includes a main body and an insert coupled to one end of the main body, with the insert configured to mate with a graphite electrode to secure the lift plug to the graphite electrode. The lift plug also includes a lifting component coupled to the main body opposite the insert to lift the graphite electrode. The insert comprises a non-graphite material with a coefficient of thermal expansion (CTE) similar to graphite, such that the lift plug expands at a similar rate as the graphite electrode when heated so as to prevent locking at a joint between the lift plug and the graphite electrode.

An electric power apparatus for an electric arc furnace comprises at least one electrode and is connectable to a power network to supply to the electrode the electric energy to generate an electric arc to melt a metal mass. The apparatus comprises an electric regulation unit interposed and connected to the power network and to the electrode and configured to regulate at least one electric quantity for powering the electrode. The apparatus comprises at least one detection device to detect the electric quantity, interposed between the electrode and the electric regulation unit, a positioning device to move the at least one electrode nearer to/away from the metal mass to be melted and a control and command unit.

A metallurgical furnace including a vessel with a lower shell for containing a metal bath, the metal bath composed of molten metal and an overlying layer of slag. The lower shell is tiltingly supported and provided with a deslagging opening for evacuating the slag and a tapping opening for tapping the molten metal. The vessel includes an upper shell removably positioned on the lower shell and first and second inlet openings for feeding. The vessel includes a closing roof for the upper closing of the vessel removably positioned on the upper shell and a passage opening for the passage, through the same, of at least one electrode, at least one charge opening for feeding, through the same, charge material in the solid state. At least one of the inlet openings, passage opening, and charge opening is closed or associated with a closing element.

A melting and holding furnace includes a main body and a material input mechanism supplying a molten metal to the body which includes a melting chamber; a molten metal receiving chamber; a pumping-out chamber; and a molten metal heating mechanism. The input mechanism includes a molten-metal surface level sensor to detect that the surface height position of the metal in the pumping-out chamber has reached a lower limit that is set to be above the lower surface height position of a lid of the melting chamber, and is set to supply the receiving chamber with the metal and/or the metal block when the sensor detects that the surface height position of the metal in the pumping-out chamber has reached the lower limit so that the surface height position of the metal in the pumping-out chamber is always kept above the lower surface height position of the lid.

Provided is an auxiliary burner for an electric furnace that has high iron scrap heating effect by appropriately and efficiently burning a solid fuel such as coal together with a gas fuel. An auxiliary burner for an electric furnace 100 has a structure in which a solid fuel injection tube 1, a gas fuel injection tube 2, and a combustion-supporting gas injection tube 3 are coaxially arranged in order from the center. The front end of the solid fuel injection tube 1 is located inside the gas fuel injection tube 2 to form, between the front end of the solid fuel injection tube 1 and the front end of the gas fuel injection tube 2, a first space 4 for solid fuel and gas fuel premixing surrounded by the front end portion of the gas fuel injection tube 2.