Colloidal grout mixing apparatus and method
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United States of America Patent
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Sep 21, 1993
Issued Date -
N/A
app pub date -
Nov 1, 1991
filing date -
Oct 28, 1986
priority date (Note) -
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Abstract
A mixing method uses, and a colloidal grout mixing apparatus comprises, an upright cylindrical vessel in which a mixer is located. The mixer comprises a shaft extending substantially co-axially with the longitudinal axis of the vessel, and a paddle assembly mounted on the shaft. The paddle assembly produces a vortex in liquid in the vessel, and also provides a high shear region near the base of the vessel. A non-shear pump is connected to the base to discharge grout from the vessel. The grout may be discharged to a drum containing radioactive waste and mounted on a vibratory platform.
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