Importance

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Abstract

A self-aspirated froth flotation cell 100 may include a slurry vortex stabilizer 166 having an annular body 234 with an upper annular edge 176 and an aperture 180 extending through a central region of the annular body 234. The aperture 180 may have an inner surface 182 bounded between an upper inner edge 178 and a lower inner edge 200 that is configured to allow the drive shaft 142 to rotate freely therein in close proximity to the inner surface 182. The slurry vortex stabilizer 166 may have an annular undersurface 210 configured with a inner first portion 212, a second portion 236 provided around the first portion 212, and an annular intersection, transition, or inflection 214 therebetween. A sloped upper surface 242 which tapers downwardly towards the central region of the annular body 234 as it approaches the aperture 180 forms a lower fluid surface boundary within a standpipe 152 of the self-aspirated froth flotation cell 100.

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First Claim