![]() This is one of IHC’s latest innovations and represents a significant design improvement in the durability of its pumps distinguished by a new type of patented impeller blade.” The impeller is the rotating part of a centrifugal pump that moves the dredged fluids by rotation. “IHC is always looking for ways to improve its dredging equipment and to remain competitive. “With a long history of designing pumps, IHC combines the latest technical developments, computational fluid dynamics (CFD) and utilizes in-house testing facilities to create a full range of dredge pumps,” Rijkse said. Dredge pumps may be used on hopper dredges for trailing, pumping ashore or ‘rainbowing’ or on cutter suction dredges that have a single pump on the ladder or onboard. Double-walled high pressure pumps are typically used for discharge on trailing suction hopper dredges but also are used as booster pumps. In addition, consideration of the operation, the type of dredging, and safety are all determining factors in selecting the appropriate pump.” A single-walled, submersible dredge pump on an IHC Easydredge trailing suction hopper dredge.Ī single vessel can be equipped with one, two or even three pumps that are used in series to boost dredging production or increase discharge distance. They can be executed in single-walled or double-walled versions, and these can be either submersible or onboard dredge pumps.īas Rijkse, product manager at Royal IHC, which is headquartered in the Netherlands but works worldwide, said, “Pumps are a considerable investment for a dredging company, and the aim is to find an optimal balance between initial costs and total cost of ownership. ![]() Dredge pumps are often divided into low pressure, medium pressure and high pressure categories. ![]() Dredging operations are dependent on the reliability and suitability of the dredge pumps being deployed. The pumps work on the principle of centripetal force creating a pressure difference. Dredge pumps are centrifugal pumps, driven by diesel or electric motors. ![]()
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