What are the structural characteristics of a dredging pump?

The impeller of the dredge pump is designed as a centrifugal type. The rotation of the impeller creates suction vacuum, using atmospheric pressure to draw the slurry into the pump body.

2024-11-28

What are the structural characteristics of a dredging pump?

The structural features of the dredge pump mainly include the following aspects:

Impeller Design: The dredge pump's impeller is designed as a centrifugal type, creating suction vacuum through impeller rotation, using atmospheric pressure to draw slurry into the pump body.
Suction Depth Limitation: Because the slurry has a higher specific gravity than water, some suction vacuum is lost during the suction process. Therefore, the suction depth of dredgers is generally around 25 meters. Beyond this depth, the pump efficiency significantly decreases.
High-Efficiency Non-Clogging Design: The high-efficiency non-clogging submersible sewage pump uses a unique single-channel or double-channel impeller structure, effectively transporting solids and long fibers, featuring significant energy savings, low noise, and low vibration.
Working Principle of the Dredge Pump
The working principle of the dredge pump is to create suction vacuum through impeller rotation, using atmospheric pressure to draw slurry into the pump body. The specific process is as follows:

Suction Process: The impeller rotation creates suction vacuum, and slurry is drawn into the pump body under the vacuum effect.
Discharge Process: The suctioned slurry is accelerated by the centrifugal action of the impeller and discharged through the outlet pipe.
High-Efficiency Non-Clogging Design: The high-efficiency non-clogging submersible sewage pump uses a unique impeller structure and mechanical seal, effectively transporting solids and long fibers, featuring high efficiency, low noise, and low vibration.
Application Scenarios of the Dredge Pump
The dredge pump is widely used in the following scenarios:

Dredgers: The centrifugal slurry pump used on dredgers creates suction vacuum through impeller rotation, drawing slurry from the water bottom into the pump body, commonly used in river dredging and port construction.
Sewage Treatment: The high-efficiency non-clogging submersible sewage pump is suitable for sewage treatment, capable of handling sewage containing solid particles and long fibers, commonly used in urban sewage treatment plants.
Industrial Applications: The vortex pump is small in size and light in weight, has self-priming ability and a steep head characteristic curve, commonly used in boiler feed water, shipbuilding, light textile, chemical, and other fields.

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