Filter device and method for the periodic cleaning of a filter
AssigneeUtisol Technologies AG
InventorsEberhard Harms, Mark Grigo
Life of this patent
Estimating the term…
Abstract
In a filter device and in a method for the periodic cleaning of a filter of a water treatment or sewage treatment plant, a rotating filter is arranged within its own separate filter chamber, the bottom of which is designed as following a contour of the rotating filter. The provision of an own separate filter chamber makes it possible for the rotating filter to be cleaned, without other parts of a filtering installation having to be taken out of operation, and without the rotating filter having to be dismantled and removed from the filter chamber. Therefore no lifting cranes or separate cleaning basins are necessary.
Claims11
A filter device (1) for a water treatment or sewage treatment plant, comprising:
- a basin for receiving water to be filtered, and
- arranged within said basin, a rotating filter (2) having essentially the form of a cylinder, said rotating filter having a horizontal axis of rotation (21), wherein
- said rotating filter (2) is arranged in its own separate filter chamber (3), and that a bottom (4) of said filter chamber (3) is designed as following a contour of said rotating filter (2).
A method for the periodic cleaning of a filter device comprising the steps of:
- separation of a filter chamber (3) from other water conducting parts (7) of an installation,
- pumping-off or draining of water present in said filter chamber (3),
- filling of said filter chamber (3) with cleaning liquid up to approximately just below an axis of rotation (21) of a rotating filter (2),
- rotation of said rotating filter (2),
- pumping-off or draining of the used cleaning liquid, and
- re-establishment of the connections to the other water conducting parts of the installation.
Dependencies are inferred from the claim text.