Portable three-floating-body silt extracting system for small and medium-sized reservoirs

Abstract

The invention discloses a portable three-floating-body silt extracting system for small and medium-sized reservoirs. The system comprises a base platform, a propelling system, a sand pump group, a sand pumping suction pipe suction head, a sand flushing pump, a sand pumping suction pipe suction head rising and falling system and power supply equipment; the base platform comprises a main floating box and side floating boxes arranged on two sides of the main floating box; the main floating box and the side floating boxes adopt total-electric-welding steel structures and are connected through detachable floating box connecting hinges; the propelling system comprises propeller hanging machines mounted at the tails of the side floating boxes; the sand pump group comprises two sand pumps connected in series; a pump compartment is arranged at the front end of the main floating box; the sand pump group is mounted in the pump compartment; and the outlet of the sand pump group is connected with a sand conveying pipeline. The method combining the flushing and suction type sand pumping principle and the sweeping type operation manner is adopted, and the system is relatively applicable to sand excavation or desilting operation in reservoir areas and lake water areas with shallow deposit layers.

Description

Technical field [0001] The invention belongs to the technical field of sand mining equipment and mainly relates to a portable three-buoy silt extraction system for medium and small reservoirs. Background technique [0002] After the reservoir pivot project was completed and put into operation, it played an important role in the local industrial and agricultural economic development and flood control safety. Most reservoirs, especially reservoirs on sandy rivers, have high sediment content during flood seasons, and the siltation of the reservoirs will be more serious, which greatly shortens the service life of the reservoir and reduces the water storage capacity, which seriously affects the industrial and agricultural economic development of the basin area. . [0003] Many reservoir projects do not consider the sand removal facilities in the planning and design. In order to discharge the sediment from the reservoir, the reservoir diversion tunnel has to be used to discharge the san...

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

[0004] Sand pumping platforms are commonly used sand mining or dredging equipment in rivers and lakes, but the existing sand pumping platforms have fewer functions, especially not suitable for sand mining or dredging operations in reservoir areas and lake waters with shallow sediment layers.

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