Settler for decanting mineral slurries and method for separating clarified liquid from thickened slurry of said mineral slurries
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United States of America Patent
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Jan 26, 2021
Grant Date -
Jan 5, 2017
app pub date -
Nov 28, 2014
filing date -
Dec 20, 2013
priority date (Note) -
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Abstract
A settler for decanting mineral slurries includes a tank having a side wall, a bottom and a top, an outlet for a thickened slurry at the bottom of the tank, a first overflow outlet for withdrawing an overflow stream of a clarified liquid, a slurry inlet means for introducing fresh slurry into the tank, the slurry inlet means having a slurry opening through which fresh slurry joins a body of slurry in the tank, and a stirrer having a vertical axis around which the stirrer rotates or reciprocates, in said settler the slurry opening is displaced laterally relative to said vertical axis of the stirrer and said slurry inlet means comprises mixing means. A separation installation includes the above settler and a method for separating a clarified liquid from a thickened slurry of a mineral slurry.
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