Riserless transfer pump and mixer/pre-melter for molten metal applications
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jul 4, 2013
app pub date -
Apr 9, 2012
filing date -
Oct 29, 2008
priority date (Note) -
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Abstract
A pump for processing molten metal having an enlarged tubular body which houses a centrifugal pump at its bottom end. The bottom end has a concave curved shape whose shape is a function of the particular type of vortex to be created for the application at hand. This curved portion of the body receives the ejected molten metal from the impeller and forms an uplifting axial vortex within the tubular section of the body. The pump is designed to cooperate synergistically with said body such that the uplifting axial 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 radial vane impeller is formed in the back plate of the impeller. When the impeller is rotated, solid particles introduced into the body are accelerated radially by the back plate impeller into the vortex.
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