Measurement of the level of settled particles within a fluid vessel
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United States of America Patent
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-
Dec 30, 2003
Grant Date -
May 1, 2003
app pub date -
Oct 26, 2001
filing date -
Oct 26, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method of measuring a level of settled particles in a fluid-containing vessel includes the steps of fluidizing particles from a position below the settled level of particles, and measuring a static pressure of liquid within the vessel at a position in the vessel below the settled level of particles. The fluidized static pressure is correlated to a level of settled particles within the vessel using an experimentally determined relationship. The apparatus includes an inlet pipe into the vessel at a position below the settled level of particles, and a pump which recirculates liquid from the vessel above the submerged level of particles, remote from the settled level of particles, and a static pressure instrument connected to the inlet pipe. A solids pump can be activated to remove settled particles from the vessel, the operation of the pump being controlled by the measured level of settled particles.
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