River dredge pump is a specialized centrifugal pump designed by Zhengrong Pump for river dredging and sediment removal projects. Based on the company's WN dredging pump technology, it is optimized for handling the variable conditions of river environments, including sediment, sand and small gravel. The pump features a robust structure to withstand the dynamic loads of mobile dredging operations, with corrosion-resistant materials selected for parts exposed to river water. Manufactured in compliance with ISO9001:2015 and GB/T19001-2016 standards, each unit undergoes hydraulic performance testing to ensure it meets design specifications.
Product Parameters
|
Indicator |
Specification |
|
Flow Rate |
60-800 m³/h |
|
Head |
10-45 m |
|
Motor Power |
30-250 kW |
|
Maximum Particle Size |
≤40 mm |
|
Efficiency |
70-78% |
|
Vibration Level |
≤4.5 mm/s |
|
Weight |
550-4800 kg |
Components
Impeller: Semi-open design, GX260Cr27 high-chromium alloy, 56-60 HRC.
Pump Body: QT400-600 ductile iron with GX260Cr27 internal lining.
Shaft: carbon steel with chrome plating for corrosion resistance.
Seal System: Mechanical seal + packing seal combination.
Vibration Damping Pads: Rubber material with Shore A hardness of 60-70.
Product Features
Impeller with semi-open design, balancing anti-clogging performance and hydraulic efficiency (70-78%).
01
The river dredge pump body made of QT400-600 ductile iron with internal lining of GX260Cr27 high-chromium alloy.
02
Shaft seal system combining mechanical seal and packing seal for dual protection against river water intrusion.
03
Lightweight design compared to standard dredge pumps, reducing installation weight by 15%.
04
Equipped with vibration damping pads to reduce operational vibration by 20% during mobile dredging.
05
FAQ
Q: What is the maximum river depth for using this pump?
A: The standard river dredge pump is suitable for water depths up to 10 meters. For deeper rivers (10-20 meters), we recommend our submersible pump variant or a longer suction pipe configuration.
Q: How does the pump handle muddy river water with high organic content?
A: The pump's semi-open impeller and widened flow passage (≥60 mm) can handle muddy water with organic content up to 15% by volume without significant efficiency loss.
Q: What is the expected service life of the pump in continuous river dredging operations?
A: With proper maintenance, the pump body has a service life of 8-10 years, while wear parts (impeller, liner) typically require replacement every 1500-2000 hours of operation.
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