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US 2019/0168235 A1Published application
Recovering metals and aggregate using multiple screw separators
OwnerThomas A VALERIOinventor
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Abstract
A system and method for recovering metals from a waste stream includes or uses a feeder, a first screw separator, a slurry tank, and a second screw separator configured to receive carrier fluid and particles from the slurry tank. The method and system can include feature to improve water usage.
Claims25
A system for recovering metals from a waste stream comprising:
- a feeder configured to introduce the waste stream into the system, wherein the flow rate of the waste stream is adjustable;
- a first screw separator configured to receive the waste stream from the feeder, wherein the first screw separator further comprises a first walled bed that receives settled particles from the waste stream;
- a slurry tank configured to receive the particles that settle within the first walled bed;
- and
- a carrier fluid configured to disperse the particles uniformly within the slurry tank;
- wherein the carrier fluid is introduced into the slurry tank;
- a second screw separator configured to receive carrier fluid and particles from the slurry tank, wherein carrier fluid flows at a constant velocity;
- a plurality of walled beds configured to receive particles from the waste stream that settle as the waste stream passes along the screw separators, wherein each of the walled beds has an adjustable pitch;
- a weir, wherein the height of the weir is adjustable;
- and
- a controlled liquid flow mechanism configured to dispense water to the first screw separator and the second screw separator.
8 more elements
A system for recovering metals from a waste stream comprising:
- a feeder configured to introduce the waste stream into the system, wherein the flow rate of the waste stream is adjustable;
- a slurry tank configured to receive the particles that settle within the first walled bed;
- a carrier fluid configured to disperse the particles uniformly within the slurry tank;
- wherein the carrier fluid is introduced into the slurry tank;
- a screw separator configured to receive carrier fluid and particles from the slurry tank, wherein carrier fluid flows at a constant velocity;
- a plurality of walled beds configured to receive particles from the waste stream that settle as the waste stream passes along the screw separators, wherein each of the walled beds has an adjustable pitch;
- a weir, wherein the height of the weir is adjustable;
- and
- a controlled liquid flow configured to dispense water to the second screw separator.
6 more elements
Dependencies are inferred from the claim text.