Danieli & C. Officine Meccaniche S.p.a.

More S.r.l.

Danieli Automation S.p.a.

Stefano Morsut

Alfredo Poloni

Milorad Pavlicevic

Fabio Guastini

Andrea Codutti

Antonello Mordeglia

Marco Ansoldi

Bernard Villemin

Romano Sellan

Stefano Terlicher

Maurizio Picciotto

Federico Gubiani

Luca Sabidussi

Simone Marcuzzi

Ferdinando Forno

Vladimir Dimitrijevic

An apparatus for supplying gas to a determinate number of injector devices of a melting furnace for the production of metal, including a main feed line, a first secondary feed line and a second secondary feed line which are respectively configured to supply, selectively and in a controlled manner, a process gas, an inert gas and a purge gas to each of the injector devices.

Apparatus and method for supplying a gas to a furnace for the production of metal

Apparatus for the production of metal including a furnace for melting metal provided with a crucible inside which a metal charge is melted. The furnace provides for tapping a liquid metal disposed on the bottom of the crucible and includes a tapping channel for the transfer of the liquid metal from the furnace. The apparatus also includes a delivery unit for delivering inert material (S) having a delivery device for the selective delivery of the inert material (S) into the tapping channel.

Apparatus for the production of metal

Apparatus to heat and transfer mainly metal materials to a melting furnace (), the apparatus comprising a transporter device () configured to move the materials continuously to the melting furnace (), and at least an induction heating unit () associated with the transporter device () and configured to heat by electromagnetic induction the materials moved in the transporter device (), keeping them in a solid state.

Apparatus for heating and transferring metal materials for a melting plant, and method for melting metal materials

Plant for melting metal materials comprising at least a heating unit () provided with a container () to contain the mainly metal materials and with at least an induction heating device () configured to heat the mainly metal materials contained in the container (). The plant also comprises a transfer unit () disposed downstream of the heating unit () and configured to move, substantially continuously, the mainly metal solid materials exiting from the heating unit () to a melting furnace (). The container () is provided with an aperture () through which the mainly metal material, heated and in a solid state, is discharged onto the transfer unit (), and opening/closing members () are associated with the aperture (), commanded by an actuator () and configured to open, close and choke the aperture () in order to regulate the delivery of the metal materials that is discharged onto the transfer unit ().

Plant and method for melting metal materials

Bottom electrode or anode for continuous direct current arc furnaces, provided with a cooling system which allows to improve the effectiveness of the cooling action of the bottom electrode, made in the shape of bimetallic billet, for the purpose of ensuring a sufficient height of the portion of said electrode which remains solid during the operation of the furnace, also when there is a very high electric load.

Electrode for direct current continuous arc furnace

Device and relative method to inject technological gases and solid material in powder form, in a furnace used in steel and metallurgical melting processes, comprising an emission element including an outlet mouth arranged at a certain distance from the liquid bath, said emission element being innerly shaped as a double nozzle, respectively first and second, the first nozzle having a convergent/divergent conformation defined by a neck and being predisposed for the emission of a jet of gas at supersonic speed, said second nozzle having at the end a conformation convergent towards the axis of the emission element and being pre-disposed, according to the step of the melting process in progress, for the emission of a jet at subsonic speed either of technological gases alone, such as for example oxygen, or of solid material in powder form on a gassy vehicle, or of liquid in atomized form.

Integrated device to inject oxygen, technological gases and solid material in powder form and method to use the integrated device for the metallurgical processing of baths of molten metal

Nozzle for device to inject oxygen and technological gases used in metallurgical processing of metal melting, the nozzle being suitable to emit a gassy flow at supersonic velocity, the nozzle having a conformation symmetrical to a central axis (x) defined by a throat arranged between the inlet and the outlet, the throat defining an upstream part with a convergent development and a downstream part with a divergent development which ends in the outlet mouth, the nozzle with the convergent/divergent development having a geometry such that the fall in pressure of the gassy flow from inlet to outlet has a hyperbolic tangent development. Dimensioning method for the nozzle as above, the method providing an inverse dimensioning approach wherein the geometry of the nozzle is adapted to the natural profile of the fall in pressure of the gassy flow according to a hyperbolic tangent development, thus obtaining an optimum variation of the aerodynamic parameters according to the natural laws of expansion.

Nozzle for device to inject oxygen and technological gases and relative dimensioning method

Device to cool and protect a cathode in an electric arc furnace, wherein the cathode comprises at least a consumable column, a structure, hollow on the inside and containing a cooling liquid, arranged around the column and provided with a first lower chamber in which a liquid is suitable to evaporate and a second upper chamber in which the condensation of steam is suitable to occur, at least two vertical conduits being provided to connect the two chambers.

Growing community of inventors

Udine, Italy

Stefano Morsut