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  • Bucket-wheel cutter
  • Bucket-wheel cutter-2

Cutting system——transformation of the cutter

April 28th, 2020|

The performance of cutter Cutter is a cutting tool for cutter suction dredger to cut underwater soil. Driven by the prime mover, it rotates to cut the soil layer and causes the soil layer separated by cutting to be deformed, broken, and mixed with water to form a slurry, which [...]

  • disassembly process of the wheel set-1
  • wheelset disassembly

Brief introduction of the disassembly process of the wheelset

April 20th, 2020|

At present, due to the increasing demand for dredging channels and building factories in the sea, large cutter suction dredgers are widely used in port construction and Marine development, playing a huge role. Cutter suction dredger is a kind of offshore construction equipment with a complex system and high technical [...]

Influence of flow rate and concentration on production efficiency

April 13th, 2020|

1.Flow rate The dredger is operated under certain working conditions, and its output flow is rated under normal conditions. In order to obtain maximum productivity, it is necessary to choose the optimal construction scheme and maximize the output flow while ensuring the normal operation of the dredge pump. Under the conditions [...]

  • Operation methods for different soils1
  • HS-55 CSDs operation

Operation methods for different soils

March 27th, 2020|

Excavation of hard clay: the water content of hard clay is low, high viscosity and hardness, and is not easy to collapse and excavation broken. It is difficult to excavate with bucket wheel head cutter, it is necessary to increase power to reduce the bucket wheel head speed, swing speed, [...]

  • Pipeline laying method1
  • Pipeline laying method2

Pipeline laying method

March 24th, 2020|

Floating pipe laying   Float pipe of a certain length shall be laid after the stern pipe of the cutter suction dredger conveying pump. The floating pipe adopts the form of a plastic pontoon-covered steel pipe, and the steel pipes are flexibly connected with 1.5m long rubber pipes. So that the [...]

  • csd

Specific methods to improve dredging capacity of CSD

February 21st, 2020|

Transform the dredging depth   Based on the designed excavation length, the distance is increased, and the mechanical equipment in the construction process is reformed according to the needs. It is important to note that when the length of the cutter ladder increases, its lifting capacity needs to be calculated [...]

  • Daily maintenance and regular inspection of fire equipment1
  • Daily maintenance and regular inspection of fire equipment2

Daily maintenance and regular inspection of fire equipment

January 14th, 2020|

Daily maintenance and inspection of early-warning fire equipment.   The ship fire alarm device shall be inspected by a special person at least once a month for full coverage and shall be recorded, and the failed equipment shall be replaced in time.   Inspection of stationary carbon dioxide systems.   [...]

  • Fire-fighting equipment for cutter suction dredger

Fire-fighting equipment for cutter suction dredger

January 3rd, 2020|

Early warning fire-fighting equipment   In the key parts of the ship according to the environment to install temperature or smoke detector, sound-light alarm device, such as the ship engine room, fixed carbon dioxide room, paint room, oil distributor room, battery room, kitchen, accommodation, etc. Manual alarm devices should be [...]

  • Characteristics of short discharge distance construction of cutter suction dredger-1
  • Characteristics of short discharge distance construction of cutter suction dredger-2

Characteristics of short discharge distance construction of cutter suction dredger

December 27th, 2019|

Influence of short discharge distance construction on the dredge pump device   As we know, the design flow and design pressure of the single-speed dredge pump on the cutter suction dredger usually correspond to the characteristics of the pipeline under the design condition, that is, the rated discharge distance and [...]

  • Construction methods for different soil qualities-1
  • Construction methods for different soil qualities-2

Construction methods for different soil qualities

December 20th, 2019|

Excavate hard clay. Hard clay moisture content is low, cohesive force is large, the cutter rotation is clockwise, in the right transverse movement is easy to produce "hob" phenomenon, in addition to appropriate control of the left anchor mechanism dynamic pressure, but also to reduce the cutter speed, transverse speed, [...]

  • The main factors to be considered in selecting a dredger

The main factors to be considered in selecting a dredger

November 28th, 2019|

Selecting dredger appropriately according to construction conditions is an important prerequisite for organizing dredger construction and dredging. If the dredger is not chosen properly, it will not only increase the cost of dredging but also may damage the dredger and even fail to complete the task. There are two basic [...]