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US 8,992,073 B2Granted
Device for automatic elimination of fibers on the impeller of a mixer in wastewater treatment process
AssigneeMilton Roy Mixing
InventorsDidier Lefebvre, Gael Poulleau, Antoine Godde
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Abstract
A method and apparatus is disclosed for maintaining fluid in suspension in a mixing tank including particles includes providing a reversible mixer, rotating the mixer in a normal direction in which particles buildup on the mixer, and, rotating the mixer in an abnormal direction to shed the particles from the mixer.
Claims3
A method for maintaining fluid in suspension in a mixing tank including fibers, comprising:
- providing a reversible mixer comprising a shaft and an impeller, wherein the mixer is provided within a mixing tank for a waste water treatment plant;
- rotating the mixer in a normal direction in which fibers build up on the mixer;
- sensing if a buildup of fibers on the mixer exists, wherein the sensing includes sensing a voltage or a current drawn from the mixer;
- rotating the mixer in an abnormal direction to shed the fibers from the mixer if the buildup exists;
- and
- rotating the mixer in the normal direction to maintain the fibers in suspension after shedding the fibers from the mixer.
3 more elements
Dependencies are inferred from the claim text.