Drain pump for a spray-cooled metallurgical furnace
First Claim
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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.
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Abstract
An apparatus is disclosed for a spray-cooled roof of a tilting metallurgical furnace having a drain pump. The spray-cooled roof has a hollow metal roof section. The hollow metal roof section has an outer metal covering member, an inner metal base member spaced from and opposite the outer metal covering member, an enclosed space disposed between the outer metal covering member and the inner metal base member, and a spray-cooled system disposed in the enclosed space. An evacuation drain is fluidly coupled to the enclosed space and a pump is integrated into the spray-cooled roof and coupled to the evacuation drain.
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Citations
19 Claims
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1. A spray-cooled roof for a metallurgical furnace, the spray-cooled roof comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A metallurgical furnace, comprising:
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a body comprising; a hearth lined with refractory brick; and a sidewall disposed on top of the hearth, the sidewall having a top; a spray-cooled roof moveably disposed on the top of the sidewall, the spray-cooled roof 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. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for removing spent coolant from within a spray-cooled roof of a metallurgical furnace, the method comprising:
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coupling a motive source of a venturi pump directly to a spray-coolant header disposed inside the spray-cooled roof; directing spent coolant from inside the spray-cooled roof to a peripheral drain; and pumping the spent coolant from the peripheral drain with the venturi pump coupled to an exterior of or disposed in the spray-cooled roof, wherein the spent coolant is pumped to a collection system external to the metallurgical furnace. - View Dependent Claims (16, 17, 18, 19)
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Specification