Importance

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Abstract

An apparatus for separating lightweight particles from heavyweight and middling particles of the slurry generally consisting of means defining an upper cylindrical chamber, means defining a frusto-conical chamber communicating an upper end thereof with a lower end of the upper cylindrical chamber, means for tangentially injecting the slurry into the upper end of the upper cylindrical chamber to create a swirling vortex of the slurry, descending through the upper cylindrical chamber and the frusto-conical chamber, providing an axially disposed, low pressure zone, means for discharging an overflow of the slurry containing lightweight particles, the overflow discharging means including an intake orifice disposed in communication with the low pressure zone in the frusto-conical chamber and means for discharging an underflow of the slurry containing heavyweight and middling particles, the underflow discharging means having an intake orifice communicating with the frusto-conical chamber.

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First Claim