US 11,815,313 B2
Metallurgical furnace having an integrated off-gas hood
Scott A. Ferguson, Murfreesboro, TN (US); and Troy D. Ward, Franklin, TN (US)
Assigned to Systems Spray-Cooled, Inc., Smyrna, TN (US)
Filed by Systems Spray-Cooled, Inc., Smyrna, TN (US)
Filed on Oct. 28, 2021, as Appl. No. 17/513,385.
Application 17/513,385 is a continuation of application No. 16/419,670, filed on May 22, 2019, granted, now 11,187,462.
Claims priority of provisional application 62/699,537, filed on Jul. 17, 2018.
Prior Publication US 2022/0049900 A1, Feb. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F27D 17/00 (2006.01); C21C 5/38 (2006.01)
CPC F27D 17/002 (2013.01) [C21C 5/38 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A spray-cooled roof for a ladle metallurgical furnace, the spray-cooled roof comprising:
a hollow metal roof, the hollow metal roof comprising:
a top;
a bottom;
an inner sidewall;
an opening extending from the top to the bottom and defined by the inner sidewall, the opening configured for one or more electrodes to pass therethrough;
an enclosed space defined between the top, the bottom, and the inner sidewall;
a spray-cooled system disposed in the enclosed space and configured to spray coolant in the enclosed space on the bottom of the hollow metal roof; and
a channel having walls disposed through the enclosed space, wherein the spray-cooled system extends between the top of the hollow metal roof and the walls of the channel.