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US 8,133,401 B2Granted
Method and apparatus for treating lime slurry for grit removal
AssigneeRDP Company
InventorsPaul G. Christy, Michael Quici
Life of this patent
Estimating the term…
Abstract
A method and apparatus is provided for conveying lime slurry, removing and controlling the amount of grit, and feeding lime slurry, wherein the lime slurry moves through a recirculation loop, and wherein gravity removal of grit from the lime slurry takes place.
Claims15
A method of treating lime slurry in a slurry treatment system, comprising the steps of:
- (a) providing a watery lime slurry having lime particles and grit particles therein, in a slurry tank;
- (b) delivering slurry from the slurry tank via a delivery line and extracting a portion of the slurry delivered from the slurry tank via delivery line and discharging said extracted portion of the slurry from said delivery line;
- (c) substantially continuously delivering slurry from the slurry tank to a device for gravity separation of some of the grit from the rest of the slurry without adding dilution water in the process;
- and
- (d) recirculating the rest of the slurry to the slurry tank after separation of some of the grit from the slurry.
2 more elements
Dependencies are inferred from the claim text.