High Performance Cutter Suction Dredger For Precise Dredging Operations

High-Performance Cutter Suction Dredger for Precise Dredging Operations

Product Description​
The cutter suction dredger is a common and widely used dredging vessel. Its main working principle is to use the rotating

auger to loosen the soil on the riverbed or seabed, mix it with water to form mud, and then suck it into the pump body

through the mud suction pipe, and transport the mud to the mud discharge area through the mud discharge pipe. ​
From a structural point of view, the cutter suction dredger is mainly composed of the hull, auger system, mud suction system,

mud discharge system, positioning and displacement system, etc. The hull provides the entiredredger with an operating

platform and buoyancy support to ensure stability when operating on the water surface;the auger system is installed at the

front end of the mud suction pipe, and the highspeed rotating auger is used to cut and stir the bottom soil for subsequent

mud suction operations. There are various types of cutters, such as ordinary cutters for soft soil, and cutters equipped with

teeth for digging harder soil such as clay; the mud suction system consists of a mud suction pipe and a mud pump. The

powerful mud pump generates suction to suck the loosened mud through the mud suction pipe; the mud discharge system

includes a mud discharge pipe and related connecting equipment, which is responsible for transporting the sucked mud to

the designated mud discharge area over a long distance. The length of the mud discharge pipe can be adjusted and spliced

​​according to actual operation requirements. The positioning and shifting system ensures that the dredger can accurately fix

its position during operation and move according to the predetermined dredging trajectory. 

Common methods include steel pile positioning, anchor cable positioning, and three-cable positioning.

Product Parameters

Operation process​
Before dredging, the construction area must be surveyed in detail, including measuring the water depth,topography, and

understanding the soil conditions, and a reasonable construction plan must be formulated based on the survey results. Then,

the cutter suction dredger is moved to the construction area, and the shipis accurately fixed at the starting position through

the positioning and displacement system. The auger system is started, the auger speed and cutting depth are adjusted, and

the underwater soil is loosened. At the same time, the mud pump is turned on to generate suction to suck the loosened mud

through the mud suction pipe and transport it to the mud discharge area through the mud discharge pipe. During the dredging

process, it is necessary to pay close attention to the operating parameters of various equipment, such as the torque of the 

auger, the pressure and flow of the mud pump, etc., and adjust the construction parameters in time according to the actual

situation. As the dredging work progresses, the dredger is gradually moved according to the predetermined dredging trajectory

through the positioning and displacement system to complete the dredging operation of the entire construction area.

Detail photos

Application areas​
Inland river and lake dredging: It can effectively clean up the silt in inland rivers and lakes, improve the navigation capacity

of rivers, improve water flow conditions, and prevent floods caused by river siltation. For example, in the inland river regulation

projects in some cities, the cutter suction dredger can accurately remove the silt accumulated on the riverbed for many years,

restore the normal water section of the river, and improve the ecological environment around the inland river. ​
Coastal port dredging: It is used to maintain and widen the port channel to ensure that large ships can enter and exit the port

safely and smoothly. With the development of international trade, the port throughput continues to increase, and the requirements

for the depth and width of the channel are also increasing. The cutter suction dredger meets the navigation needs of large ships

and improves the operating efficiency of the port by deepening and widening the channel. ​
Land reclamation: In coastal areas, the cutter suction dredger is used to excavate the seabed silt and transport it to the designated

area through the sludge pipe for filling operations, thereby forming new land. This provides valuable land resources for urban

development in areas with limited land resources, such as some coastal cities,and can be used to build industrial development

zones, port supporting facilities, coastal tourist resorts, etc. ​
Special rock stratum excavation (when equipped with high-power auger equipment): Under special circumstances, when

a high-power auger equipment is installed on the cutter suction dredger, rock strata such as basalt and limestone can be excavated

without blasting. This has important application value in some small rock stratum excavation projects, or in areas with strict

requirements on the construction environment and where blasting operations are not allowed.

Company profile

Shandong yongsheng dredging machinery Co.,LTD.is located in Huanglou Street, Qingzhou City, Shandong

Province, China. It has 2 production bases , total area near 2000m2, and more than 20 years manufacturing

experience in water area environmental protective equipment. It is a professional supplier of integrated with R&D,

consultation, manufacturing and after-sale service. Yongsheng now has obtained certification: ISO9001.

contact us

+86 150 6343 7191

lily@dredgerys.com

Shandong Yongsheng Dredging Machinery Equipment Co., Ltd.

Providing best solutions for dredging