US 11,656,028 B2
Drain pump for a spray-cooled metallurgical furnace
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. 11, 2019, as Appl. No. 16/600,160.
Claims priority of provisional application 62/752,057, filed on Oct. 29, 2018.
Prior Publication US 2020/0132373 A1, Apr. 30, 2020
Int. Cl. F27D 1/12 (2006.01); F27D 1/02 (2006.01); F27D 11/08 (2006.01); F27D 9/00 (2006.01)
CPC F27D 1/12 (2013.01) [F27D 1/02 (2013.01); F27D 11/08 (2013.01); F27D 2009/0016 (2013.01); F27D 2009/0067 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A spray-cooled roof for a metallurgical furnace, the spray-cooled roof comprising:
a hollow metal roof section, the hollow metal roof section comprising:
an outer metal cover;
an inner metal plate spaced from and opposite the outer metal covering member, the inner metal plate configured to face an interior of a metallurgical furnace;
an enclosed space disposed between the outer metal cover and the inner metal plate; and
a spray-cooled system disposed in the enclosed space wherein the spray-cooled system comprises:
a coolant supply header conduit attached to fluid outlets;
an evacuation drain fluidly coupled to the enclosed space; and
a venturi pump disposed above the inner metal plate and integrated into the spray-cooled roof, the venturi pump coupled to the evacuation drain, wherein the venturi pump comprises:
a motive inlet fluidly coupled to the coolant supply header.