Reservoir sand pumping system

Abstract

The invention relates to a riverbed cleaning device, in particular to a sand pumping system for riverbed sand of a reservoir on a hyper-concentration river, and belongs to the field of water conservancy. The number of IPC (international patent classification) of the sand pumping system is E02B 3 / 02 and E02D 17 / 16. A mud suction device comprising a plurality of reamers and a spraying gun is adopted for the sand pumping system to crush and stir deposited matter so that deposited silt can be kept suspended and a high-concentration muddy water field can be formed; and meanwhile, a filtering grid, a protective cover and other auxiliary facilities are arranged to isolate muddy water, so that muddy water suction operation areas large enough in number and relatively stable in concentration are more effectively formed, the reservoir desilting efficiency is greatly improved, and therefore great social benefits and economic benefits are achieved, and the significance is huge.

Description

Technical field: [0001] The invention relates to a river bed cleaning device, in particular to a sand pumping system for river bed sediment of a sandy river reservoir, the IPC international patent classification number of which is E02B 3 / 02, E02D 17 / 16, and belongs to the field of water conservancy. Background technique: [0002] After the completion and operation of the reservoir hub project, it has played an important role in the development of the local industrial and agricultural economy and flood control safety. Most of the reservoirs, especially the reservoirs of sandy rivers, have high sediment concentration in the flood season, and the sediment deposition in the reservoirs will be more serious, which greatly shortens the service life of the reservoirs, leads to a reduction in water storage, and seriously affects the economic development of industry and agriculture in the basin area. . [0003] Many reservoir projects do not consider sand discharge facilities in thei...

AI Technical Summary

Problems solved by technology

Most of the reservoirs, especially the reservoirs of sandy rivers, have high sediment concentration in the flood season, and the sediment deposition in the reservoirs will be more serious, which greatly shortens the service life of the reservoirs, leads to a reduction in water storage, and seriously affects the economic development of industry and agriculture in the basin area.

[0003] Many reservoir projects do not consider sand discharge facilities in their planning and design. In order to discharge the reservoir sediment out of the reservoir, they have to use the reservoir diversion tunnel to discharge sand. However, the elevation of the opening and closing platform of the diversion tunnel inlet gate is generally low, and the reservoir water level must be lowered. many gates to open

Sometimes the reservoir is emptied by mechanical hauling and mechanically assisted hydraulic dredging to remove the silt in front of the dam, but the cost of cleaning the silt per cubic meter is very high and consumes a lot of precious water resources

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