![]() ![]() If necessary, the ADST-200E dredger can be supplied with discharge PE pipeline, power cable and steel floats of pontoon type.Dredging is a form of excavation carried out underwater, gathering up bottom sediments and transporting them elsewhere. In water area the ADST-200E dredger is moved due to swing winches installed in the dredge corners. The ADST-200E dredger is compact, the dimensions are 9.5 x 5 meters (L x W). Lifting and submerging of the pump is carried out by means of winch through gantry with a block mechanism. The dredger construction is designed as trimaran with the installation of the dredge pump at the suspension at the forepart of pontoons. In this way excavation is energy-efficient. Due to a water jet system, the ADST-200E dredger can continuously pump the water-sand mixture (up to 1.4 kg/dm3 of density). The jet pump delivers minimum 8 bar of pressure being sufficient to loosen compressed soil with clayish inclusions. The dredger has got a water jet system, comprising a centrifugal pump and a jet ring with nipples mounted directly on a dredge pump. With the dredger of ADST-200E series you can extract 50 m3 of sand with dredge pump power consumption of 22-37 kW.ĭredger power source – three-phase, from the shore 400 V grids. At the discharge the sand output reaches 30% at nominal capacity. Thereby it is possible to extract and handle pulp, concentration of solids being up to 60% by weight. Dredged mixture is intaken with pump submerged in water with no suction pipeline.
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