1.Brief Introduction
A dredging pump is an engineering device that operates on the principle of centrifugal force. It uses impeller rotation to generate suction, drawing in and transporting mixtures of silt, sediment, etc., to a designated location. Its core applications include:
River Management and Dredging:
Dredging and Flood Control:Removing silt from the bottom of river channels improves flood control capacity and reduces the risk of flooding. For example, in Suihua City, the use of sand dredging pump technology achieves a daily dredging capacity of 3,000-5,000 cubic meters, more than three times the efficiency of traditional excavators.
Ecological Protection:Closed-loop pipeline transportation reduces damage to riverbank vegetation and lowers the concentration of suspended solids in water by 62%.
How to Choose the fit model of dredging pump?
1. Application Scenarios Matching
Dredging Projects: Select high-lift, high-flow pumps (e.g., WN type horizontal dredging pumps, head 20-80m, flow rate 1800-25000m³/h).
Gravel Transportation: Requires highly wear-resistant design (e.g., G type gravel pumps, high-chromium alloy impeller).
High-Pressure Environments: Plunger-type or closed-loop hydraulic system pumps are preferred.
2. Technical Parameter Selection
Flow Rate and Head: Calculated based on conveying distance and height. Long-distance conveying requires a higher head (≥50m).
Power: Matches the medium concentration. High-concentration slurry requires higher power (e.g., 7.5kW or above).
Material: High-chromium alloy or rubber lining offers superior wear resistance.
3. Maintenance Cycle
Wear-resistant Parts: Inspect the high-chromium alloy impeller for wear every 6-12 months and replace seals periodically.
Hydraulic System: Change the oil every 500 hours and perform a comprehensive overhaul annually.
4. Wear-resistant design advantages
Extended lifespan: High-chromium alloy impellers have a lifespan 3-5 times longer than those made of ordinary materials.
Efficiency maintenance: Wear-resistant design reduces flow channel wear, maintaining efficiency above 90%.
Economy: Reduces replacement frequency and energy consumption, resulting in an overall cost reduction of 30%-50%.
2. Detailed Description
Maintenance Cycle and Key Parameters
Wear-resistant Design: Constructed of hard nickel/high chromium alloy. Impeller and pump casing should be inspected for wear every 6-12 months. Wear rings should be replaced periodically.
Pressure Rating: Operating pressure is typically 10-30 bar. Seals and pressure-bearing components should be inspected monthly.
Power Configuration: Diesel/electric drive. It is recommended to change the engine oil every 500 hours and check the motor insulation performance every 2000 hours.
Maintenance Recommendations: Clean deposits inside the pump quarterly and perform a comprehensive overhaul of bearings and mechanical seals annually.
Technical Specification Of 600WN Sand/Slurry/Dredging Pump:
| Model | 600WN |
| Clear water flow per hour | 7000cbm |
| head | 62m |
| speed | 470rpm |
| Efficienfy | 80% |
| NPSHr | <6m |
| Inlet | 700mm |
| Outlet | 600mm |
| Weight | about 18000.00KGS |
3. Picture Shows
600WN Dredging pump
500WN Sand Pump
450WN Slurry Pump
4. Company Introduction
Qingzhou Yongli Mining And Dredging Machinery Co., Ltd. is located in Qingzhou City, Shandong Province, one of the ancient nine states. We are a professional manufacturer and supplier of dredging vessels and mining equipment that integrates scientific research, development, design, production, installation and commissioning, and personnel allocation services.
Dredging vessels include: cutter suction dredgers, bucket wheel dredgers, jet suction dredgers, siphon sand dredgers, drilling suction sand dredgers, chain bucket sand dredgers, amphibious dredgers, backhoe dredgers, multifunctional work boats, self-suction and self-unloading barges, transport barges, sand sieving and washing equipment, etc.
The mining equipment includes: floating production platform, bucket chain gold/diamond dredger , jet suction gold/diamond dredger, cutter suction gold/diamond dredger, land-use gold/diamond washing plant, as well as an integrated production line for mining and mineral processing in water and on land. It can also be customized according to the mineral types provided by customers.
We are High and New Technology Enterprise, have obtained the production license for ships of Class III Grade Two from CCS China Classification Society, joined the China Dredging Association and Shandong Shipbuilding Industry Association, obtained the ISO9001-2015 quality management system certificate, and obtained more than 30 patent certificates for inventions and utility models from the China National Intellectual Property Administration. The successfully built Yongli series products have obtained the certification from international famous testing organizations like SGS and BV. We have won widespread praise from domestic and foreign customers with our first-class product quality and complete after-sales service system.
We will continue to adhere to the principles of integrity, mutual benefit, and common development. Welcome domestic and foreign customers to visit us for factory inspection and business negotiation!
