Equipment replacement can eat away at operational efficiency and increase the dredger's overall lifetime costs.įigure 3. Clogged impellers and breaking vanes also pose risks to pump performance. The soil tends to settle down and slide on the pipe bed, depending on the flow speed.Īnother challenge is that pump parts wear quickly. The pumped water does not behave like a homogenous fluid because of the different viscosities. They must carry water filled with a diverse, dense mixture of solids, including mud, fine sand, coarse sand, gravel, stones and other debris. Dredge pumps also consume the most power during operation, so efforts to reduce the pump's power needs through smarter design are critical.ĭredge pumps involve more complex engineering challenges than water pumps. The dredge pump is a dredger's main component and is critical to achieving production. Malyushenko, Impeller Pumps: Theory and Design, Mashinostroenie, Moscow (1977).At its location in the UAE, Dredge Yard engineers develops and supplies dredging and mining equipment such as dredge pumps, ball joints, cutter heads and complete dredgers. Stepanoff, Centrifugal and Axial-Flow Pumps: Theory, Design, and Application, JohnWiley & Sons, New York (1957).Ī. Yakovlev, “Results of studies on a model of an axial-flow pump w ith screw impeller and hydrodynamic seal,” Nauch. Yakovlev, “Test data for an axial dredge pump model,” Nauch. Meeting on Intensification of Hydraulic Excavation and Underwater Production with Submersible Dredgers, Moscow (1989). Yakovlev, “Study of the flow path and design of a submersible booster axial-flow pump,” in: Abstrs. Kulakov, “Submersible axial-flow pumps for dredges,” Hydrotech.

Gamzin, “On thickening of the water-soil mixture at the inlet of the suction line of a dredger,” Nauch. Doctoral Thesis, Nizhny Novgorod (2011). Aref’ev, Scientific Substantiation of Engineering Solutions for Improving the Efficiency of Marine Power Plants for Suction-Tube Dredgers. Zharnitskii, Suction-Tube Dredgers with Submersible Pumps, Nedra, Moscow (1988).

Dredge pump impeller