High performance combined sewage overflow and water intake screen
AssigneeSchloss Engineered Equipment, Inc.
InventorCharles M. Schloss
Life of this patent
Estimating the term…
Abstract
A screening device useful in water and waste water treatment plants separates fluid flow into two streams. The screening device is perforated so that solids having a predetermined cross-section will be maintained within a first fluid stream, and a portion of the fluid flow that has been screened of solids will flow into a second split-off fluid flow. The streams may go to different locations; only the first stream need be processed for the solids. The screening device is preferably cylindrical or another surface of rotation or a section of such a surface, and rotates. These features help maintain the screening device free of solids, and supplemental cleaning devices may also be used.
Claims13
A method for screening solid objects from a fluid stream having a direction of flow, comprising:
- filtering a portion of the fluid stream through a screening device into a split-off stream having a direction of flow different from the fluid stream direction of flow, the screening device being substantially circular in cross section, and the screening device having an upper section;
- and
- moving the screening device to assist in maintaining the screening device clear of solids, said means rotating the screening device so that the upper section of the screening device is rotated opposite the split-off stream direction of flow;
- wherein the screening device has an axis that is parallel to the fluid stream direction of flow.
A system for treating a fluid flow stream containing solids having at least a preselected cross-section, comprising:
- a channel for containing the fluid flow stream having a direction of flow;
- a screening device for screening at least a portion of the fluid flow stream into a split-off stream having a direction of flow different from the fluid stream direction of flow, the screening device being perforated so that solids having at least the preselected cross-section will be maintained within the fluid flow stream, the screening device having a substantially circular cross section, and the screening device having an axis that is parallel to the fluid stream direction of flow;
- the screening device having an upper section;
- and
- means for moving the screening device, said means rotating the screening device so that the upper section of the screening devices is rotated opposite the split-off stream direction of flow.
Dependencies are inferred from the claim text.