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US 6,149,811 AGranted
Dredging system
AssigneeSolomon Ventures LLC
InventorsMichael Hodges, Robert Leland Schwartz, George C. Kane
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a continuous, portable dredging system that employs a series of screens and gravity separation devices with flocculation to remove sediments from the dredged slurry. The system produces a treated water stream having low solids content and a recovered solids product having a low water content.
Claims12
A screen device for collecting solids in a slurry feedstream, comprising:
- a first screen;
- a second screen, wherein the first screen is connected at an upper end of the second screen;
- a third screen connected at an upper end of the first screen;
- and
- a fourth screen connected at a lower end of the third screen, wherein the first screen forms a first angle from horizontal that is different from a second angle from horizontal formed by the second screen to control the velocity of particles collecting on at least one of said first and second screens.
2 more elements
A system for removing solid materials from a slurry, comprising:
- means for controlling the velocity of solid materials in a slurry feedstream;
- and
- a tracking screen comprising a first screen connected at an upper end of a second screen, wherein the first and second screens are inclined relative to the horizontal at different angles, the tracking screen being in communication with the means for controlling velocity, wherein the means for controlling velocity comprises a vessel having a first horizontal cross-sectional area at an input end of the vessel and a second horizontal cross-sectional area at an output end of the vessel, wherein the first cross-sectional area is less than the second cross-sectional area.
Dependencies are inferred from the claim text.