B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
259/40, 259/42,
B01F 7/00 (2006.01)
Patent
CA 1227193
Apparatus and Method for Controlling Consistency Abstract Consistency of slurries such as paper pulp stock is controlled by ultrasonically measuring the flow of the slurry (the velocity of the particles therein) as the slurry is agitated by an impeller which induces circulation thereof within a region in a tank containing the slurry. Dilutant is added under the control of the measurement and a mixed slurry of desired consistency is obtained, respectively at an inlet and an outlet in com- munication with the region of the tank where flow is being induced and measured. Consistency control is obtained in the containing vessel or tank with greater accuracy and at lower cost than in apparatus where con- sistency is measured outside of the vessel containing the slurry.
415956
Borden Ladner Gervais Llp
General Signal Corporation
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