Aquaculture filtration system employing a rotating drum filter
First Claim
1. A substantially closed aquaculture system for farming fish in combination with a system for filtering water to be recirculated through said aquaculture system, comprising:
- a container having an inlet for receiving water from the aquaculture system to be filtered and an outlet for recirculating filtered water to the aquaculture system;
a cylindrically shaped filter horizontally mounted in said container by a tubular member having an elongated opening formed therein for receiving a flow of filtered water, said elongated opening having a length of at least half an axial length of said cylindrically shaped filter, said filtered water flowing through said tubular member and flowing out of said tubular member from at least one end of said tubular member, said filter having a porous resilient filter screen forming an outer layer of said filter for removing aquaculture system particulate from said water received through said inlet, said elongated opening opposing said filter screen;
cleaning means positioned in direct contact with said resilient filter screen for removing said aquaculture system particulate collected at an outer surface of said resilient filter screen; and
rotating means for rotating said filter.
1 Assignment
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Accused Products
Abstract
An aquaculture system is provided for filtering water and includes a filter rotatably carried in a container for receiving water to be filtered. The filter includes a porous resilient filter screen forming an outer layer of the filter for removing particulate from water passing through the filter screen. A vacuum cleaning device is positioned in direct contact with the resilient filter screen for removing particulate collected at the outer surface of the resilient filter screen. A water nozzle supplies a stream of water to the resilient filter screen to remove particulate therefrom not previously removed by the vacuum cleaning device. A rotation device is coupled to the filter to rotate the filter in the container.
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Citations
15 Claims
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1. A substantially closed aquaculture system for farming fish in combination with a system for filtering water to be recirculated through said aquaculture system, comprising:
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a container having an inlet for receiving water from the aquaculture system to be filtered and an outlet for recirculating filtered water to the aquaculture system; a cylindrically shaped filter horizontally mounted in said container by a tubular member having an elongated opening formed therein for receiving a flow of filtered water, said elongated opening having a length of at least half an axial length of said cylindrically shaped filter, said filtered water flowing through said tubular member and flowing out of said tubular member from at least one end of said tubular member, said filter having a porous resilient filter screen forming an outer layer of said filter for removing aquaculture system particulate from said water received through said inlet, said elongated opening opposing said filter screen; cleaning means positioned in direct contact with said resilient filter screen for removing said aquaculture system particulate collected at an outer surface of said resilient filter screen; and rotating means for rotating said filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15)
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12. A system for filtering water, comprising:
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a container having an inlet for receiving water to be filtered and an outlet for supplying filtered water; a filter rotatably carried in said container, said filter having a porous resilient filter screen forming an outer layer of said filter for removing particulate from said water received through said inlet; rotating means for rotating said filter; and cleaning means positioned in direct contact with said resilient filter screen for removing particulate collected at an outer surface of said resilient filter screen, said cleaning means including a vacuum source, a container having an upper portion coupled to said vacuum source, and having a frustoconical base which extends toward an outlet, a vacuum head coupled to said container via a suction conduit, said vacuum head being held in direct contact with said resilient filter screen by a spring force exerted on said head by said conduit, and sediment collection means coupled to said outlet of said container for collecting said removed particulate, said sediment collection means including; a first conduit coupled at a first end to said outlet in said base of said container; a second conduit having a substantially horizontal portion coupled in a mid-region thereof to a second end of said first conduit, a substantial portion of said removed particulate settling in said second conduit; a third conduit having a first end coupled to a first end of said second conduit, said third conduit extending upwardly from said second conduit to a second end of said third conduit, said second end of said third conduit being covered with a first removable cap; and a fourth conduit coupled to a second end of said second conduit and extending upwardly a distance therefrom, and then extending downwardly to form a drain outlet, wherein a water level in said first conduit is dependent upon the length of said distance. - View Dependent Claims (13)
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Specification