| 摘要 |
Devices, methods, and systems for providing portable dredging flotation hoses capable of being wound on reels in a reduced volume configuration and transported to dredging sites. Some dredge flotation hoses include a first lay-flat hose disposed about a second, inner lay-flat hose and sealed at both ends of the first lay-flat hose to form an inflatable annular space therebetween. Some devices have a coupling member at either end of the lay-flat hoses to receive and couple the inner lay-flat hose within the outer lay-flat hose and provide external access to the channel flowing through the inner lay-flat hose. A closeable orifice can be provided through the body of the coupling device to allow inflation of the annular volume between the inner and outer lay-flat hoses. Lay-flat hose pairs having sizes of 3 and 4 inches to 10 and 12 inches, and other combinations are provided by the present invention. Composite lay-flat hoses can be transported on a reel to a large manure lagoon, unwound, inflated, floated between the lagoon edge and a dredging unit, and used to transport a manure-water slurry to conventional hoses, then spread upon fields near the manure lagoon. The composite flotation hose can then be deflated, wound onto the reel, and transported to the next lagoon to be serviced. The simple inflation and deflation, winding and unwinding, is significantly easier than transporting, assembling and disassembling conventional flotation pipe segments. |
