Method and apparatus for optimized mixing in a common hearth in plasma furnace
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United States of America Patent
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Mar 30, 2004
Grant Date -
Mar 25, 2004
app pub date -
Sep 20, 2002
filing date -
Sep 20, 2002
priority date (Note) -
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Abstract
A method and apparatus for optimized mixing in a common hearth in a plasma furnace. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby the refining hearths and molds define at least two separate ingot making lines. A feed chute provides raw material to the main hearth, whereby the feed chute is moveable to optimize its position during operation of the main hearth. Most particularly, the feed chute is moveable to provide better mixing, minimize skull build-up, and optimally place it opposite the overflow in use.
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