Dredging is a form of excavation carried out underwater, gathering up bottom sediments and transporting them elsewhere. Dredging operations are crucial activities for develop and maintain harbors networks, keep or improve navigability of water-ways, restore dams capacity, construction of damps and ports, recover valuable mineral deposits, contaminants remediation, installation of off-shore platforms, fast reaction in civil emergencies, among others… all of them are essential activities to sus-tain economic growth in most countries.
All of our Submersible Slurry Pumps are suitable to be used for dredging. The solids are pumped mixed with water. There are many applications for our dredge pumps: Dredging of Rivers, Harbors, Dams, Canals, Lakes and Lagoons. In some cases is es-sential to control the turbidity while dredging, this is something that our dredge pumps are able to do. Here below you can read about some of the multiple applications of our Dredge pumps.
You can find more about dredge pumps fundamentals in our section Slurry Pump Basics.
We offer a wide selection of electric or hydraulic dredge pumps, hydraulic power packs, booster station and dredges. You can find them in our products section.
Dredging is an energy intensive operation. The main challenge for manufacturers of dredging equipment is to develop efficient machines that can reduce the use of energy, and thus contain the operating cost of projects. Dragflow has been fully concen-trated on submersible dredge pumps technology since its beginnings, and is now able to provide the widest range of high efficient electric and hydraulic submersible dredge pumps in the market.
The presence of a double blade agitator together with pump suction directly in contact with the material make Dragflow pumps able to move slurries with solid content up to 70% by weight. Higher solid concentration means using energy to move solids instead of water, so you will be able to work with smaller diesel engines and reduced discharge pipe diameters. The result is a considerably reduced operating cost per cubic meter while keeping total daily production at the same level of bigger size cutter suction dredges.
The Dragflow submersible dredge pump is a versatile tool. It can be attached to the boom of an excavator and run using the excavators hydraulics, or it can be suspended from a crane or an A-frame to form a high efficient suction dredger. Design of dredgers comes out to be extremely simplified with possibility to reduce capital cost and have high working depth without any increase in the cost of equipment. Pumps can be provided with cutter heads and thus form a submersible cutter dredger, and could include high pressure water jets to work with highly compacted soil.
To carry out the work in a professional manner, you have to choose the proper equipment. Asking us for expert advice can em-power you to make the right choice, that could be more affordable and easy to implement than you think.
Dredging of Rivers and Canals
Our dredge pumps has been successfully used in the dredging of rivers to create or recover navigability, to remove contaminants from the river-bed and to restore the river shorelines.
We can help you to choose the size of dredge pump that best adapts to your requirements. We have a wide selection of electric and hydraulic dredge pumps.
We can provide dredge pumps alone, dredge packages that could be in-stalled on existing dredges, and complete dredge solutions like remote controlled dredges, cable dredges or amphibious dredges.
Our dredges have options like dredge monitoring system with integrated GPS, that allows the control of the work performed; and depth counter, to control the depth of the dredging.
Dam dredging is a crucial operation to keep the capacity of the water reservoirs created by Dams, either for water sup-ply dams or for hydroelectric dams; since sedimentation build –up can affect their capacity and also affect the water quality.
Dragflow can be a reliable and flexible partner for dam dredging projects thanks to quick delivery of dredge pumps for sediments removal.
We offer accessories like Anti-turbidity bell, to contain the turbidity of water in sensible applications; and complete solutions like remote controlled dredges or cable dredges. We have solution easy to transport and assembly.
Dredging of Ports and Marinas
Because of sea currents and sedimentation in upstream effluents, the seabed of ports & marinas are frequently raised, making difficult the access of boats and vessels. Our sand pumps are a convenient solution for harbor dredging along with our remote controlled mini-dredges and cable dredges.
Our dredge can be combined with cutter heads or side cutters to increase the efficiency when the soil is too compact.
We offer a selection of electric and hydraulic dredge pumps according to the requirements of each project.
Dredging of Lakes and Ponds
Our dredge pumps are used for cleaning lakes and ponds, to remove silt and contaminants from the lakebeds; and for the dredging of tailings ponds in order to restore their capacity.
Our submersible dredge pumps can be equipped with accessories like cutter knife for aquatic plants, and water jets ring or cutters for compacted soil.