Material and geometry design to enhance the operation of a plasma arc
First Claim
1. A ceramic pour nozzle for a plasma arc centrifugal treatment system, the ceramic pour nozzle comprising a substantially cylindrical orifice section, a generally arch-shaped downwardly-facing surface having a smaller radius than said orifice section, said downwardly-facing surface extending above a plane of a bottom of the orifice section, and a generally cylindrical or frusto-conical section extending below the plane at an inside radius larger than the radius of the orifice section, the downwardly-facing surface being connected to the generally cylindrical or frusto-conical section.
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Accused Products
Abstract
A pour throat nozzle for a plasma arc centrifugal treatment system includes a substantially cylindrical throat section, with a generally arch-shaped, downwardly-facing surface at smaller radius extending above the plane of the bottom of the throat section, and with this connecting to a generally cylindrical section extending below the aforesaid plane at an inside radius much larger than the radius of the throat section. Furthermore, a method of reforming an orifice of a pour throat in a PACT system centrifuge includes adding ceramic material to the melt, heating and mixing the ceramic material with the melt, then slowing rotation of the centrifuge so that the mix pours into the inlet orifice of the nozzle.
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Citations
16 Claims
- 1. A ceramic pour nozzle for a plasma arc centrifugal treatment system, the ceramic pour nozzle comprising a substantially cylindrical orifice section, a generally arch-shaped downwardly-facing surface having a smaller radius than said orifice section, said downwardly-facing surface extending above a plane of a bottom of the orifice section, and a generally cylindrical or frusto-conical section extending below the plane at an inside radius larger than the radius of the orifice section, the downwardly-facing surface being connected to the generally cylindrical or frusto-conical section.
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9. A plasma arc centrifugal treatment system comprising:
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a primary chamber;
a plasma torch extending within the primary chamber;
a centrifuge defining a bottom of the primary chamber;
a slag mold below the centrifuge; and
a ceramic pour nozzle located between the primary chamber and the slag mold, the ceramic pour nozzle being defined within the centrifuge and comprising;
a substantially cylindrical orifice section;
a generally arch-shaped downwardly-facing surface having a smaller radius than said orifice section, said downwardly-facing surface extending above a plane of a bottom of the orifice section; and
a generally cylindrical or frusto-conical section extending below the plane at an inside radius larger than the radius of the orifice section, the downwardly-facing surface being connected to the generally cylindrical or frusto-conical section. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification