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As is well known, cutter suction dredgers are now widely used. They can operate in rivers, lakes, and seas. Cutter suction dredgers are simple to operate and easy to control; the operator can easily control them from the cab. Their advantages include high efficiency, large output, and long pumping distance.
Taking a basic, common 14-inch cutter suction dredger as an example, it is equipped with a 920kW main engine and a 285kW auxiliary engine. The main engine provides strong power support for the vessel, facilitating the smooth operation of major components.
The auxiliary engine ensures the normal operation of auxiliary components. The two engines working together ensure high efficiency.
It is equipped with a 350 dredging pump, with a clean water flow rate of approximately 2500-3000 m³/h, and an hourly output of 375-600 m³/h, which is sufficient to meet demand. Its powerful suction can transport silt and sand to silt piles several kilometers away.
Precautions
- After starting the dredger engine, let it idle for about 10 minutes. Once the water temperature, oil temperature, and oil pressure reach the specified requirements, production can begin.
- Before the engine drives the sand pump, the operator in the control room should first turn on the 24V main power switch on the dredger’s control panel.
- Lower the bridge frame and suction pipe using the dredger’s winch to submerge the cutter head in the water, then start the flushing pump.
- Activate the gearbox and sand pump using the engagement switch on the control panel, allowing the engine to drive the gearbox and power the sand pump. Gradually increase the engine speed to the specified level.
- When the dredger is making a fan-shaped movement during construction, the positioning stakes must never be inserted into the mud simultaneously. This is absolutely prohibited during operation.
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