US 12,460,865 B2
Apparatus and method for supplying a gas to a furnace for the production of metal
Federico Gubiani, Gemona del Friuli (IT); Luca Sabidussi, Gemona del Friuli (IT); and Stefano Morsut, Udine (IT)
Assigned to MORE S.R.L., Gemona del Friuli (IT)
Filed by MORE S.r.l., Gemona del Friuli (IT)
Filed on May 23, 2023, as Appl. No. 18/200,914.
Claims priority of application No. 102022000010706 (IT), filed on May 24, 2022.
Prior Publication US 2023/0384031 A1, Nov. 30, 2023
Int. Cl. F27B 3/22 (2006.01); C21C 5/52 (2006.01); G05D 7/06 (2006.01)
CPC F27B 3/22 (2013.01) [C21C 5/527 (2013.01); G05D 7/0635 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for supplying gas to a melting furnace for the production of metal, wherein said melting furnace has a plurality of a determinate number of injector devices, wherein said apparatus comprises:
first supply means configured to selectively supply a process gas to said injector devices;
second supply means configured to selectively supply an inert gas to said injector devices;
third supply means configured to selectively supply a purge gas to said injector devices;
a main feed line fluidically connected to said first supply means and configured to selectively supply said process gas to each of said injector devices, after a first branch, in correspondence with a first branch point, into a number of peripheral main feed lines equal to said determinate number;
said apparatus further comprising
a first secondary feed line fluidically connected to said second supply means and configured to selectively supply said inert gas to each of said injector devices, after a second branch, in correspondence with a second branch point, into a number of first peripheral secondary feed lines equal to said determinate number;
a second secondary feed line fluidically connected to said third supply means and configured to selectively supply said purge gas to each of said injector devices, after a third branch, in correspondence with a third branch point, into a number of second peripheral secondary feed lines equal to said determinate number;
a same determinate number of connection points, each of which is disposed downstream of said branches and upstream of each of said injector devices and in which one of said peripheral main feed lines, as well as one of said first peripheral secondary feed lines and also one of said second peripheral secondary feed lines converge;
a same determinate number of terminal segments each of which fluidically connects one of said connection points to one of said injector devices;
a same determinate number of regulation units each disposed on one of said terminal segment and configured to regulate the flow rate of the one gas amongst said process gas, inert gas and purge gas that is temporarily conveyed toward one of said injector devices.