CENTRIFUGE
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United States of America Patent
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Issued Date -
Apr 21, 2016
app pub date -
Jun 14, 2013
filing date -
Jun 14, 2013
priority date (Note) -
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Abstract
A centrifuge has a bowl, an opening at the center of the lower part of the bowl for supplying liquid to be treated and for discharging a centrifugally separated solids cake, and a tapered section configured so that the radius of the inner peripheral surface of the tapered section reduces downward toward the opening. Protrusions are provided at circumferential locations on the inner peripheral surface of the tapered section and protrude from the inner peripheral surface. A wing rotates within the bowl about the vertical axis and transports the separated solids cake toward the opening when rotating relative to the bowl. A drive mechanism moves the wing to a first height position and rotates the bowl and the wing together, or moves the wing to a second height position lower than the first height position and rotates the wing relative to the bowl.
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