Method and apparatus for froth washing in flotation
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United States of America Patent
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Aug 10, 2010
Grant Date -
Sep 25, 2008
app pub date -
Nov 8, 2006
filing date -
Nov 8, 2005
priority date (Note) -
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Abstract
A method and apparatus for introducing wash water into a flotation froth in a flotation separation system, where the wash water is injectioned into the froth in the form of a horizontal sheet of water. The sheet is typically formed by impinging a downwardly directed liquid jet issuing from a nozzle onto a horizontal plate or disc where it changes direction and travels radially outwards as an axi-symmetric planar liquid jet or sheet. The depth of the disc can be adjusted by a support rod. Other embodiments are described where the horizontal sheet is ejected through a horizontal slit, or where the sheet of wash water is rectangular rather than axi-symmetric.
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