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Dam cleaning dredging

17/3/2015

Environmental dredging and High Depth dredging are emerging trends in the dredging market. DRAGFLOW has developed a full line of hydraulic and electric pumps and cutters for high depth applications that our customers have been using for Environmental dredging.

 

A perfect example of this is a dam cleaning dredging project we are currently undertaking in Udine (Italy). In this dam cleaning project, our Environmental High Depth System is operating at depths of 50+ meters, cleaning an area of 30,000 m3 with clay and alluvium material.

 

In this projects have been used 3 Hydraulic Pumps (HY85/160B) and Excavators  with dredging capacity up to 1.400 m3 per day  with maximum client's satisfaction.

 


The beauty of the system is that the dam is in full service during the dredging operation.

 

Our High Depth Systems, powered by hydraulic power packs or generators, can operate as deep as 300 meters and include hydraulic or electric pumps, hydraulic or electric cutters, high-pressure water jets and Anti-turbidity bells.

 

The design of our High Depth System prevents contamination.

 

The action of both, the strong suction of the impeller and the effect of the double blade agitator (that sends a high-pressure flow of water towards the sedimented material), put the solids in suspension, creating a high-density slurry. This slurry is conveyed to the eye of the impeller at high velocity, containing the turbidity in a cone shaped zone adjacent to the pump. As a safety factor, the Anti-Turbidity Bell covers the perimeter where the pump and cutters are operating, keeping all disturbances within.

 

The DRAGFLOW system handles high concentration of solids with smaller pumps, less power and reduced discharge pipe diameters; achieving better productions than larger conventional suction dredges at a much lower operating cost. 

 


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