Settling tank spray system
OwnerJohn Mahoneyinventor
Life of this patent
Estimating the term…
Abstract
A spraying system to be used on wastewater settling tanks for skimming the top scum layer into a drain. The system includes a spray nozzle that causes the top liquid layer to move in a circular fashion about the center of the tank. The nozzle can be in the form of a wall mounted spray unit that sprays water onto the surface of the contained wastewater. The nozzle can also be in the form of a multiorificed tubular body mounted directly onto the top of the drain trough. Water sprayed from the latter nozzle is directed into the trough and thereby causes a suctioning of the scum layer into the drain. The system can employ either of the nozzles or both nozzles in combination.
Claims14
A liquid settling structure and skimming system comprising:
- a drain means operatively connected to a circular liquid setting structure wherein said drain means includes an inlet at least partially in contact with an upper layer of a volume of liquid contained within said structure;
- a spray means located proximate said drain inlet and connected to a source of pressurized liquid whereby liquid spraying from said spray means impinges on said drain inlet and acts to draw at least a portion of said upper layer of contained liquid into said drain means;
- wherein said spray means comprises an elongated tubular body having a plurality of outlet ports that sprays said pressurized liquid in a direction toward a rear portion of said drain means;
- and
- wherein said drain inlet includes two spaced vertically extending walls and an angled bottom portion connecting said walls and wherein said tubular body of said spray means is mounted atop said walls and extends in a direction substantially perpendicular to said walls and wherein said outlet ports are spacedly located along said tubular body and spray liquid onto said angled bottom portion in a direction toward said rear portion of said drain means.
A liquid settling structure and skimming system comprising:
- a drain means operatively connected to a circular liquid settling structure wherein said drain means has an inlet portion at least partially in contact with an upper layer of a volume of liquid contained within said settling structure;
- and
- a first spray means attached to a portion of a peripheral wall of said structure wherein said first spray means is supplied with liquid from a pressurized liquid source and sprays liquid from an outlet port located proximate said peripheral wall onto the upper layer of liquid contained within said settling structure and wherein said sprayed liquid is directed to cause said contained liquid to move in a circular manner about a center point of said settling structure in a direction towards said drain inlet and to at least partially flow into the inlet portion of the drain means;
- wherein said first spray means is movably attached to said peripheral wall and can thereby be moved to allow liquid to be sprayed onto said contained liquid from any one of a plurality of different locations along the peripheral wall;
- and
- wherein a second spray means is located proximate said drain means and includes an outlet means whereby liquid from a pressurized source of liquid is sprayed out of said outlet means of said second spray means and onto the inlet portion of said drain means thereby suctioning at least a portion of said upper layer of contained liquid into said drain means.
Dependencies are inferred from the claim text.