Clecim

Guy Forestier

Jacques Barbe

Claude Bonnet

Process for melting scrap iron in an electric furnace and installation

An installation for the production of liquid metal by melting a charge of ferrous material, comprising at least one electric melting furnace consisting of a chamber closed by a removable roof and associated with consumable electrodes for melting the charge of ferrous material, at least one chamber for preheating the charge, and a main hot gas and flue gas removal circuit, equipped with a filtration device for removing pollutants. The preheating chamber is associated with one or more burners, and the gases produced in the chamber during preheating are sent to an auxiliary low-throughput treatment circuit equipped with an incineration chamber, and the flue gases produced in the furnace by the melting of the charge are sent directly to the main treatment circuit.

Installation for producing liquid metal by melting scrap iron

Installation for producing molten metal in an electric furnace

Closure device for a pouring hole (2) having a vertical axis, arranged in the base (11) of a container (1) containing molten metal. The device comprises a flap (3) fixed to the end of a maneuvering arm (3) which is horizontally displaceable to a level below that of the base (11), between a stand-by position and a closure position, and a device for controlling the vertical displacement at least of the end of the arm (31) in order to apply the closure flap (3) on a seating (22) on the periphery of the discharge orifice of the pouring hole (2). The maneuvering arm (31) has a cleaning member (5) located beside the closure flap (3) and centered on the trajectory of the latter. The arm (31) may be stopped in two positions of alignment, with the flap (3) and with the cleaning member (5), respectively, in the axis of the pouring hole (2), and in a position of alignment with the cleaning member, at a level which is adjustable with respect to the seating (22) of the flap (3) in order to remove metal residue adhering to the edge of the discharge orifice.

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Saint-Just-Saint-Rambert, France

Guy Forestier