B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
259/69
B01F 7/22 (2006.01) B01F 15/00 (2006.01) C02F 3/00 (2006.01)
Patent
CA 1249809
Mixing Systems Abstract Mixing systems for liquids having fibers sus- pended therein wherein the fibers tenaciously adhere to and accumulate on the leading edge of the impeller, thereby increasing the drag of the liquid on the impeller as it rotates and the consequent increase in the power required to rotate the impeller, is reduced. Axial flow of the liquid in a tank is produced by the impeller within a draft tube. The leading edge of the blades of the impeller are inclined with respect to radial lines extending from the axis of rotation of the impeller beyond the angle of repose of the fibers on the leading edge. Also, the coefficient of friction of the portion of the impeller, extending from the leading edge toward the trailing edge thereof, to which the fibers adhere is reduced by providing the surface thereof with a low coefficient of friction material.
473601
Carpenter Jerry A.
Coyle Chander K.
Mcdermott Keith T.
Voss Roger N.
Weetman Ronald J.
Borden Ladner Gervais Llp
General Signal Corporation
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