Assemblies and methods for material extraction from retention collections
View Patent ↗Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.
1 . An extraction assembly for extraction of material from a retention collection the extraction assembly comprising:
a vacuum source including one or more vacuum generators configured to generate a vacuum flow between the retention collection and the vacuum source sufficient to extract and convey the material from the retention collection to an elevated position;
at least one compressor coupled to the one or more vacuum generators for supplying a pressurized air flow to the one or more vacuum generators;
a material collector including an interior volume configured to receive and retain at least a portion of the material extracted from the retention collection; and
a vacuum shut-down assembly coupled to the vacuum source and comprising a series of actuator valves located adjacent one or more fluid supply ports through which the pressurized air flow is supplied from the at least one compressor to the one or more vacuum generators, and at least one control so that actuation of the at least one control causes the actuator valves to close and halt generation of the vacuum flow by the one or more vacuum generators, thereby to stop substantially inflow of the pressurized air to the one or more vacuum generators so as to.
2 . The extraction assembly of claim 1 , further comprising a filter and sound attenuation chamber connected to the vacuum source, the filter and sound attenuation chamber including a housing at least partially defining an interior volume configured to receive a vacuum exhaust fluid flow portion of the vacuum flow from the vacuum source and filter contaminants the vacuum exhaust fluid flow portion.
3 . The extraction assembly of claim 2 , wherein the vacuum source and the filter and sound attenuation chamber are connected to one another to define collectively a vacuum and filtration module.
4 . The extraction assembly of claim 3 , wherein the vacuum and filtration module further comprises a sound attenuation assembly configured to reduce a sound level of the vacuum flow.
5 . The extraction assembly of claim 1 , wherein each of the one or more of the vacuum generators comprises a venturi mechanism configured to receive pressurized fluid from the at least one compressor and use a venturi effect to generate the vacuum flow between the retention collection and the vacuum source.
6 . The extraction assembly of claim 1 , wherein each of the one or more vacuum generators comprises a venturi mechanism configured to receive pressurized fluid from the at least one compressor and use a venturi effect to generate the vacuum flow through and to the retention collection in the material collector.
7 . The extraction assembly of claim 6 , wherein the vacuum flow has a vacuum pressure of approximately 29 in.-Hg at a distance of at least 200 feet from the material collector.
8 . The extraction assembly of claim 1 , further comprising:
one or more fluid supply ports configured to receive pressurized fluid from the at least one compressor;
a vacuum port through which the vacuum flow is received; and
an outlet port, through which the fluid flow used to generate the vacuum flow is exhausted from the one or more vacuum generators.
9 . The extraction assembly of claim 8 , wherein the exhaust port provides fluid flow from the one or more vacuum generators to a filter and sound attenuation chamber.
10 . The extraction assembly of claim 8 , wherein the one or more fluid supply ports comprise a manifold and plurality of fluid supply ports, each of the fluid supply ports configured to receive at least a portion of the pressurized fluid from a fluid source of pressurized fluid.
11 . The extraction assembly of claim 10 , further comprising at least one conduit through which the material extracted from the retention collection is drawn, and wherein the material collector comprises a vacuum box having a chamber configured to receive the material from the at least one conduit.
12 . The extraction assembly of claim 11 , wherein the chamber of the vacuum box comprises first and second sections, and a screen arranged between the first and second sections and having a selected porosity sufficient to enable passage of water from the material received in the first section into the second section for, deviation of the material.
13 . The extraction assembly of claim 11 , wherein the vacuum box further comprises a screw mechanism extending therealong and configured to urge the material forward to a first end of the chamber so as to cause removal of water therefrom.
14 . The extraction assembly of claim 1 , further comprising a vacuum source controller configured to control one or more of:
one or more fluid supply control valves;
a vacuum control valve; or
an exhaust control valve to control a vacuum pressure generated by the one or more vacuum generators
wherein the vacuum source controller is configured to control the vacuum pressure at least partially responsive to one or more of:
an operator setting, or
a sensor signal indicative of one or more of:
the vacuum pressure, or
a vacuum flow rate.
15 . The extraction assembly of claim 1 , wherein the one or more vacuum generators comprises two or more vacuum generators, the two or more vacuum generators being configured to operate in parallel to enhance vacuum pressure generated by the vacuum source.
16 . The extraction assembly of claim 1 , further comprising a vacuum shut-down system including a plurality of flow control valves including one or more vacuum flow control valves, each of the flow control valves having an actuator configured to open and close the flow control valve, and at least one vacuum valve controls configured to control operation of each the flow control valves.
17 . The extraction assembly of claim 16 , wherein the vacuum shut-down system comprises a pair of vacuum valve controls located at opposite ends of the vacuum source, and wherein upon extraction of at least one of the vacuum valve controls, the actuators close the flow control valves through which the pressurized fluid flow is supplied to the vacuum source to halt generation of the vacuum flow and open an exhaust control valve.
18 . The extraction assembly of claim 1 , further comprising a sound attenuation chamber configured to reduce sound emitted during operation of the vacuum source by an amount ranging from ten percent to forty percent.
19 . The extraction assembly of claim 18 , further comprising filter media at least partially enclosed in the sound attenuation chamber, and wherein the filter media comprises a sound absorptive material.
20 . The extraction assembly of claim 19 , further comprising one or more of:
a filter media support plate comprising a structural member at least partially supporting the filter media within the sound attenuation chamber; or
one or more baffles at least partially enclosed in the sound attenuation chamber and configured to attenuate sound generated by the vacuum source.
21 . The extraction assembly of claim 1 , further comprising a plurality of vacuum conduits extending between the vacuum source and a filter and sound attenuation chamber, and wherein the plurality of vacuum conduits comprises flexible braided steel conduits.