Methods and apparatus for removing contaminants from contaminated solids
AssigneeSignet Aggregates, LLC
InventorROBERT DELANE BALDWIN
Life of this patent
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Abstract
An apparatus and process mechanically remove hydrocarbons and other contaminants from solids through high energy slurry impact with a stationary plate or through high energy slurry impact of two or more slurry streams. In addition to the mechanical process, a gas additive, such as CO2, in solid, liquid or gas form, can be introduced into the slurry stream. The presence of gas additive can aid in the liberation of the contaminant. The process can increase efficiencies, reduce costs and improve thoroughness of contaminate cleaning in conjunction with aqueous pressure and sheer energy.
Claims20
A contaminant or gangue removal apparatus comprising:
- a tank;
- a pump receiving a solid to be purified from the tank;
- an impact chamber having an impact plate on at least one end thereof;
- a nozzle receiving the solid to be purified from the pump and directing the solid to be purified toward an impact;
- a gas additive added to the solid to be purified prior to the solid to be purified being impacted;
- and
- a chamber to receive a post impact discharge.
A method for removing a chemical contaminant from a solid media comprising:
- pumping the solid media from a tank to a pump outlet tube;
- delivering the solid media, via a nozzle at the end of the pump outlet tube, to contact an impact plate within an impact chamber;
- injecting a gas additive into the solid media prior to the solid media reaching the impact plate;
- and
- collecting a post impact discharge from the solid media after impacting the impact plate.
A method for removing a chemical contaminant from a solid media comprising:
- pumping the solid media from a tank to a pump outlet tube with a first pump;
- delivering the solid media, as a first stream via a nozzle at the end of the pump outlet tube, to contact a second stream;
- injecting a gas additive into the solid media prior to the solid media exiting the nozzle;
- and
- collecting a post impact discharge from the solid media after an impact between the first stream and the second stream.
Dependencies are inferred from the claim text.