- Provide consulting and design service before sales, and provide scheme support to customers according to their working conditions and needs.
Leader Dredger's hydraulic system is distributed throughout the dredger and is the core control system of the entire ship. The hydraulic system is a systematic project, with strong professionalism and comprehensiveness.
The main hydraulic components are: driving the reamer, driving the bridge up and down, controlling the ship to swing left and right through the traverse winch, and controlling the positioning pile up and down through the positioning pile cylinder. In addition, the trolley and the running anchor are also driven by the hydraulic system.
The advantages of the hydraulic system include: light weight per unit of power, small inertia, fast response speed, and easy start and stop. The working medium of the hydraulic system has a certain elastic shock absorption capacity, which can make the hydraulic transmission system operate stably and reliably. These advantages just meet the working requirements of the working mechanism of cutter suction dredger. Judging from the current mainstream design, hydraulic transmission is the main transmission method adopted by the dredger dredging equipment.
The dredging system is divided into a control system and a monitoring system, which is a highly integrated system.
Through the monitoring system, you can understand the working status of all components of the whole ship, the working status of the main and auxiliary engines, the real-time status of the hydraulic system, the condition of the electrical circuit system, the running status of the pump, the working status of the gear box, the cooling system, etc.
At the same time, the centralized control unit controls the working parts of the dredger in real time through the operation lever and the like. One person can operate the parts of the entire ship.
The electrical system of the cutter dredger is composed of a main generator set, a standby generator set, an electrical cabinet, a charger and an operation console.
In order to improve the power supply efficiency of the cutter head dredge power station and ensure the safety, stability, balance and continuous power supply of the whole ship, the dredger power station is equipped with a set of power management system for the whole ship's electrical system according to the requirements of fully automatic management design.
(1) Separate the main high-power equipment from the ship's sensitive equipment, such as generators, transformers, frequency converters and motors.
(2) Adopt isolation and filtering measures for the auxiliary power supply used by the electric propulsion system equipment to avoid using the same power supply with sensitive electronic equipment.
(3) The power generation equipment on the ship, the motor base and shell, the shell of the switchgear box, the exposed metal lighting, the metal appearance and shielding layer of all cables, etc. will be grounded, and the metal grounding conductor is connected to the hull to achieve the minimum ground resistance. the goal of
Anchor rod system
Flowmeter, concentration meter
The lower end of the full range of Leader Dredger dredger spud is made of solid steel to ensure sufficient strength when penetrating the ground. When lifting the pile head, water can overflow from the two holes above the lower point. At the top, the hoist ring allows the crane to easily change the pile head.
1. Made of high-quality steel with high strength and wear resistance. Customers can also order other materials.
2. Longer service life and easy maintenance.
3. Simple disassembly and assembly, can be accurately adjusted.
Leader Dredger space is far superior to European and American ships, this design is more convenient for good ventilation system and maintenance of cabin components.
Reasonable layout of engine, hydraulic, circuit cold area system, etc., easy to locate and maintain system problems
The Leader Dredger full range of dredging boat Driving cabin has more field of vision, which is convenient for viewing more external conditions.
The extremely simple control system allows the driver to better operate the dredger.
Provide drivers with a high-quality working environment, and equipped with air conditioning.
The winch of cutter dredger adopts hydraulic transmission.
According to the location and function of the dredger, the working winch is divided into the bridge hoisting winch, the left and right lateral shifting working winch, the anchoring winch, and the positioning pile hoisting winch.
Various working winches can be steplessly adjusted within a certain rope speed range, and are equipped with manual stop pins.
The main features of the winch are:
1. Small size
3. Strong and wear-resistant
5. Safe and convenient
6. Fast maintenance
There is a production design team inside the factory, which can design the hull according to Chinese standards or BV standards, produce welding, and the painting process is in accordance with the standards of sea ships.
Ensure the high strength and corrosion resistance of the hull, so that the entire ship has a longer service life and stable operation.
Leader Dredger's dredger uses diesel engines.
When we choose the engine brand, we will test the engine performance
1. Matching degree with dredging pump
2. Is the engine power output stable?
3. Continuity of trouble-free operation
4. Fuel consumption
6. Volume and weight
7. After-sales response speed
8. Maintenance costs
A better engine can ensure the practicality, economy and rationality of the cutter dredger
Dredging pump is one of the main working parts of cutter dredger. Power consumption generally accounts for 60% to 70% of the energy supply of the whole ship, and its working characteristic parameters roughly represent the performance of the dredger
The shell of the double-shell pump is not in contact with the mud and is not subject to wear, so the double-shell pump is much safer than the single-shell pump. With the protection of the outer shell, the inner shell can be fully utilized. At the same time, the use of high wear-resistant materials for the inner shell can greatly extend its service life, reduce the operating cost of the dredger, and improve the safety performance of the cutter dredger.
In the design and selection of the suction pump, we will select reasonable parameters according to various conditions such as the dredging depth, soil condition, output, and discharge distance of the customer's construction project. And determine the best working condition point of the mud pump in order to make the whole ship have better economy.
For example, if the discharge distance of a certain project is far, if you blindly increase the head of a single pump, it will inevitably increase the power and invest more in single-party costs for future projects that are not of this type.
Concentration and efficiency are two very important parameters of the suction pump. It is far more economical to increase the concentration percentage point than to increase the efficiency percentage point of the suction pump.
The cutter head of the cutter suction dredger is divided into: cutter type dredging tool, bucket wheel type dredging tool
Among them, the cutter type is the most. Different dredging tools have different impacts on the construction requirements and the surrounding environment. In the dredging project, a reasonable dredging tool should be selected. The reamer head will always be affected by several inherent factors in the design process:
1. Shaft power of reamer
2. Power of the mud pump
3. The diameter of the suction pipe and the diameter of the discharge pipe
4. The specific shape and structure of the dredger cutter head
5. The shape and position of the suction port of the reamer head
6. The soil quality of the construction project, the depth of dredging, etc.
Among the hydraulically driven cutter dredgers, they are mainly driven directly by a low-speed high-torque motor or driven by a gearbox decelerated. When using hydraulic drive, we will install the drive device close to the cutter head in order to better adjust the angle of the digging state. This is especially important when designing the minimum digging depth of the dredger.
Regardless of the dredging tool, it plays an extremely important role in the performance of the cutter suction dredger. Therefore, Leader Dredger has extremely high requirements for the selection of cutter heads:
1. Small leakage
2. The inhalation resistance and the possibility of blockage are small
3. Match cutting power with power equipment
4. Made of wear-resistant materials
5. Reamer head produced by floating ring seal technology
6. Hydraulic power drive
6. Fine manufacturing, simple installation, quick replacement
There are 32 people in the technology and design department
12 senior technicians
Can design and have all kinds of dredgers, civil, warships, marine engineering equipment qualifications.
We can do different types of China Classification Society CCS, American ABS, European BV, Italian RINA standard ships, dredgers, ships, etc.
The design of the cutter suction dredger involves disciplines such as mechanical manufacturing, electrical and electronic, hydrodynamics, computer technology, automation science, materials science, marine meteorology and even nuclear physics, and belongs to the category of system engineering design.
Leader Dredger specializes in analysis and design of dredger hull size, winch bridge, winch system, hydraulic system, positioning pile, mud pump system and its professional design, And repeatedly debug the power system, environment, vibration and noise issues
According to the dredging volume, digging depth index and soil quality of the construction project, the specific performance indexes such as the digging depth, soil breaking capacity and production capacity of the cutter suction dredger are determined.
This design concept is not only widely used in general commercial dredging fields, but also in military, scientific research and engineering fields.
The difference is that dredgers that serve commercial projects can improve the performance of cutter suction dredgers to achieve higher production efficiency and economic benefits, while dredgers used in military and scientific research fields can meet the needs of specific projects. Its economic performance is relatively lower.
In the current economic and social environment, a design that only focuses on technical performance without considering product economic indicators is almost impossible. The cutter suction dredger design is also based on practicality, reliability and other technical indicators, fully considering the economic performance in use, and weighing the unified indicators of technical performance and economic performance to achieve better design results.
For more details, please visit -Technical innovation of Leader Dredger
The main services we provide are:
a. We guarantee that the free warranty period for fast wearing parts and non-human damage parts is 1 year. Including all hydraulic parts, all electrical parts, all wearing parts and wearing parts
b. One year later, spare parts will be provided at cost price. Like the engine and gearbox, there is after-sales service in the local area. We will first judge the problem and contact their personnel to save time for resolution
c. Lifetime free consulting service, after-sales service, operation guidance
Leader Dredger has 20 years of experience in the dredger production industry and can provide customized dredger production services for the most demanding projects. It is different from other manufacturers that can only produce standard dredges. Leader Dredger has a design and production team composed of more than 70 people, and has completed the design and manufacturing of more than 100 dredgers.
For more details, please visit -Dredge Service of Leader Dredger