US 12,442,596 B2
Spray-cooled furnace roof with gravity drain
Scott A. Ferguson, Murfreesboro, TN (US)
Assigned to Systems Spray-Cooled, Inc., Smyrna, TN (US)
Filed by Systems Spray-Cooled, Inc., Smyrna, TN (US)
Filed on Mar. 2, 2022, as Appl. No. 17/685,209.
Prior Publication US 2023/0280096 A1, Sep. 7, 2023
Int. Cl. F27D 9/00 (2006.01); F27B 3/06 (2006.01)
CPC F27D 9/00 (2013.01) [F27B 3/065 (2013.01); F27D 2009/0016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A roof for a metallurgical furnace comprising:
a body comprising:
a top surface having a center opening;
a bottom surface opposite the top surface; and
an outer sidewall connecting the top surface to the bottom surface, the outer sidewall, the bottom surface and the top surface defining an interior portion, wherein the outer sidewall has a lift side and a hood side;
an internal spray cooling system disposed in the interior portion of the body; and
a drain system integral with the body, the drain system comprising:
a roof evacuation conduit disposed outside the interior portion and configured to collect spay coolant from the interior portion of the body; and
a drain box having a vent and an exit pipe, wherein the drain box is at atmospheric pressure and the roof evacuation conduit channels spent coolant into the drain box which is sloped to the exit pipe for drainage.