Riserless recirculation/transfer pump and mixer/pre-melter for molten metal applications
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United States of America Patent
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Mar 21, 2017
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N/A
app pub date -
Oct 31, 2011
filing date -
Oct 29, 2008
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Abstract
A pump for processing molten metal having an enlarged tubular body which houses a centrifugal lifting pump at its bottom end. The bottom end has a curved shape that aids in the formation and sustainability of: a) a forced vortex; b) a highly forced vortex; and c) a super forced vortex, depending on the application when it which receives the ejected molten metal from the lifting pump's impeller. The lifting pump is controlled to cause the vortex to climb up the inner wall of the body up to and out of an outlet formed in the upper end of the body. A recirculation centrifugal pump is mounted coaxially to and rotates with the lifting impeller.
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