Jet-suction dredgers utilize high-pressure water jets to create negative pressure, extracting soft underwater sediments and continuously transporting the resulting slurry through pipelines; they are primarily used for river desilting, channel dredging, port maintenance, and ecological restoration projects.
Regular Cleaning: Clean the suction pipe and jet nozzles weekly to prevent sediment buildup (reduces clogging rate by over 30%).
Lubrication of Key Components: Apply water-resistant grease to bearings and hinges monthly to minimize wear.
Seal Inspection: Check pipe flanges and pump seals daily; replace immediately if leaks are detected.
Anti-Corrosion Treatment: Apply epoxy-bitumen paint to the hull every six months; sand down and touch up any corroded areas.
Pump Maintenance: Inspect the impeller every 500 hours; replace it if wear exceeds 5mm.
