Back to results
US 2014/0069876 A1Published application
Rotary disc filter apparatus and related methods
OwnerTodd GRACEinventor
Life of this patent
Estimating the term…
Abstract
The adaptation of a rotary drum filter structure to a accommodate filter discs within the existing rotary drum filter structure while using the existing rotary drum structure foundation, piping, etc. to allow a filter disc operation.
Claims20
A filtration apparatus comprising:
- a rotatable central shaft having at least two filter discs that are attached perpendicularly to a length of the central shaft, the at least two filter discs each being generally cylindrical and having a diameter greater than a height;
- a vat adapted to contain a slurry of feed material having liquid and solids, and the at least two filter discs being configured to contact the slurry of feed material;
- a pump configured to remove filtrate through the at least two filter discs, such that solids form on at least one outside surface of a filter disc;
- means for removing the solids formed on the at least one outside surface of at least one filter disc;
- at least one first conveyor substantially perpendicular to the central shaft, the first conveyor being configured to move the removed solids to a second collection conveyor that is configured to collect the removed solids from the at least two filter discs for removal.
2 more elements
A method of filtering a slurry of feed material having liquid and solids, the method comprising the steps of:
- feeding the slurry of feed material to a pre-existing vat;
- dipping at least two filter discs attached to a central shaft into the vat;
- removing filtrate through the at least two filter discs and leaving solids on a surface of the at least two filter discs;
- removing the solids from the surface of the at least two filter discs;
- transferring the removed solids via at least one new conveyor that is substantially perpendicular to the central shaft;
- and
- transferring the removed solids to a pre-existing collection conveyor for removal of the solids from the filter structure.
4 more elements
A method of converting a pre-existing rotary drum filter structure comprising a rotatable drum, a drum vat, and a collection conveyor into a disc filter structure, the method comprising:
- removing the rotatable drum used as a filter and replacing the rotatable drum with at least two adjacent filter discs that are substantially cylindrical, each filter disc being attached to a rotatable central shaft having an axis substantially coincident with each axis of the at least two filter discs.
Dependencies are inferred from the claim text.