YSCSD500 20-inch cutter suction dredger for deepwater channel dredging

product description

A cutter suction dredger (CSD) is an engineering marvel, epitomizing the pinnacle of specialized marine technology.

This indispensable tool is fundamentally essential to a multitude of maritime and coastal construction endeavors.

With its state-of-the-art design and extraordinary capabilities, the CSD commands a pivotal role as the backbone

of a myriad of extensive and sophisticated dredging operations on a global scale.
The operation of a cutter suction dredger is a showcase of engineering efficiency. At the onset, the cutter head

rotates at high speed, expertly slicing through and loosening seabed sediment. This dynamic action skillfully converts

the soil into a slurry of sediment and water. Next, the robust mud pump exerts an impressive suction force, effectively

drawing the slurry through the suction pipe. Within the pump, the slurry undergoes pressurization, enabling its

propulsion through a sprawling discharge pipeline. This pipeline, which is extendable across vast distances using

onboard systems or floating hoses, ensures the meticulous placement of materials at specified locations, whether

they are spoil grounds or sites earmarked for reclamation.

working principle:

Excavation: At the heart of our pioneering Automated Cutter Suction Dredger lies a mighty and robust auger head,

mounted with precision. This enormous rotating cutter head, often equipped with sharp cutting teeth, is strategically

lowered to the waterbed, where it spins at remarkable speeds. Its mission is to skillfully cut, stir, and pulverize

submerged materials such as mud, clay, and even soft rock, transforming them into manageable substances, ready

for the next phase of dredging.
Suction: The dependable auger head is seamlessly supported by a durable auger bridge, ingeniously designed to

house an internal mud suction pipe. Positioned strategically behind the auger head, the suction port stands poised

to act. Once the auger head has loosened the underwater materials, the ship's powerful mud pump-a centrifugal marvel

-activates, creating a formidable vacuum. This mighty force draws in a slurry of water, accompanied by the liberated

mud and sand (commonly referred to as 'mud'), expertly channeling it through the reliable mud suction pipe.
Transportation: The collected slurry embarks on a transformative journey, expertly pressurized and navigated through

a sophisticated mud pipe system embedded within the dredger's hull, ensuring smooth and seamless movement.
Discharge: In the final stage, the mud is strategically transported to its designated destination via the mud discharge

pipe, offering two highly efficient methods for optimal disposal:
Direct Shore Discharge/Blowing and Filling: The mud embarks on a direct journey through an extended mud

discharge pipeline, composed of both floating and shore pipes, seamlessly connected from the ship's stern to the

awaiting land or shoal area for precise filling.
Loading the Barge: Alternatively, the mud is adeptly transferred into a specially designed mud barge, a versatile mud

transporter conveniently stationed beside the dredger. This ensures a smooth transfer to the designated dumping or

filling area, leveraging the mud barge's proficient transportation capabilities.

product parameters

Advantages:

Continuous and efficient operation: Excavation, suction, transportation and discharge are carried out continuously

without intermediate transfer links, and the production efficiency is extremely high.

Strong excavation capacity: It can adapt to a wide range of soil types from silt to weathered rock (the specific capacity

depends on the type of auger and the power of the ship).

High excavation accuracy: Through precise positioning and control systems (such as DTPS - dredging trajectory

positioning system), high-precision cross-section excavation can be achieved, and the flatness of the channel and

foundation trench can be well controlled.

Long transportation distance: Through relay pump stations, mud can be transported to the discharge area more than

ten or even dozens of kilometers away.

Environmental protection (relative): Small disturbance (compared to grab buckets and chain buckets), the excavation

range can be accurately controlled, and the mud can be transported in a closed manner to reduce secondary pollution to

the water environment. It is particularly suitable for environmentally friendly dredging.

High integration: A single ship completes the entire dredging process.

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

whatsapp/wechat 86 15063437191

email lily@dredgerys.com

Shandong yongsheng dredging machinery Co.,LTD.