- Provide consulting and design service before sales, and provide scheme support to customers according to their working conditions and needs.
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+86 183 6360 5622
+86 183 6360 5622
The hydraulic system of the Leader dredger is distributed throughout the dredger and is the core control system of the entire ship. The hydraulic system is a systematic project, which is highly professional and comprehensive.
1. Strong adaptability:
Unlike mechanical transmission, the position of the driving and driven parts must be kept fixed. The hydraulic system can transmit power through hydraulic hoses without being restricted by position.
2. The force can be amplified:
the hydraulic system can move a large load with a small force (hydraulic theorem).
3. Simple structure and low wear:
the hydraulic system requires few parts, not many moving parts, and it is lubricated by itself.
4. Compact structure and small size:
Compared with the motor of the same horsepower, the hydraulic motor is much smaller; compared with the shaft and gear of the mechanical system, the hydraulic system can withstand greater pressure.
5. Good economy:
due to the simple structure and small size of the hydraulic system, the cost of related power transmission is low, and the power and resistance losses are relatively small.
There are few moving parts, no gears, chains, electrical contacts, etc., and overload can also be easily controlled by using a pressure relief valve, while other systems are not easy. (Slip clutch can be used for machinery, and overcurrent and overvoltage protection devices are required for electrical.
higher than electrical system, but lower than mechanical.
8. High cleaning requirements:
The hydraulic system has higher requirements for cleaning than other systems. Rust, corrosion, dirt, high temperature and lack of oil can all cause damage to the hydraulic system. (It should be done in accordance with the maintenance requirements, using oil, oil change and filter element)
The dredging system is divided into a control system and a monitoring system, which is a highly integrated system.
1. Understand the working status of all parts of the ship
2. Understand the working status of the main and auxiliary machines
3. Understand the real-time status of the hydraulic system
4. Understand the real-time status of the circuit system
5. Understand the operating status of the dredging pump
6. Understand the working status of the gearbox
7. Know the status of the cooling system, etc.
1. Improve the accuracy of dredging construction: Construction accuracy is necessary for high-end dredgers. It requires that the dredger can neither over-dig nor miss excavation during the construction process, and obtain an accurate excavation profile.
2. Improve construction efficiency: The work efficiency of the dredger directly affects the construction of related projects, and an efficient monitoring system can shorten the construction period.
3. Improve the working conditions of the operators: In the construction of the dredger, the operation steps of the entire process are simplified, the labor intensity of the operators is reduced, and the faults in the excavation process can be quickly found through the alarm display, saving maintenance time
The electrical system of the dredger is composed of a main generator set, a standby generator set, an electrical cabinet, a charger and an operation console.Among them the main generator set:
Provide power for sealing water pumps, miscellaneous water pumps, lighting and air conditioning during dredger work.
Dredger electrical cabinet:
It is the electrical equipment for controlling dredgers, including motors, gate blades, backup hydraulic pumps, fans, air switches for lighting and leakage protectors.
On the panel are:
voltage indicator, working/standby generator switch, standby hydraulic pump, sand pump, sealing water pump, miscellaneous water pump, start/stop button of the fan.
Battery for dredger:
Start the diesel engine, solenoid valve of the hydraulic system, 24v power supply lighting of the whole dredger, to provides the power.
Anchor rod system
Flowmeter, concentration meter
The dredger spuds is the most vulnerable structural component on dredging equipment. One end of it is inserted into the sand and the other end is in the clamp at the rear of the dredger. It mainly plays the role of fixing and pushing the dredger forward.
The dredger spuds system is composed of the main spud, auxiliary spud and hydraulic lifting mechanism.
1. The dredger has high positioning accuracy, and the dredging equipment is not easy to move during construction
2. Occupies less water area and can be constructed under more complicated working conditions
3. The trolley can provide forward digging force and can excavate harder soil
4. Can work continuously
5. High construction efficiency
6. Easy disassembly and assembly
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 hydraulic winch of the cutter suction dredger is mainly a winch with a large rated load, which is driven by a reliable and low maintenance hydraulic motor.
The hydraulic winch of the dredger uses oil as the working medium, transmits motion through the change of the sealed volume, and transmits power through the pressure inside the oil.
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.
The Leader Dredger dredger uses a diesel engine.
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
Better engines can ensure the practicality, economy and rationality of pond dredge
Dredging equipment for sale suction pump is one of the main working parts of dredging equipment. 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 abrasion, 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.
Submersible pumps are widely used in large-scale projects. On the one hand, the addition of submersible pumps increases the depth of digging and increases the concentration. On the other hand, the combination with the tank pump can increase the discharge distance, making the entire suction and discharge system better Automatic adjustment function, better adaptability to working conditions and higher efficiency
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, so as 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.
Our Cutter teeth can be replaced. The blade is equipped with an adapter to easily install and remove Cutter teeth. To meet the requirements of cutting more materials. The design of the blade of the dredge blade can minimize the overflow of the cutter. They introduce the cut material into the nozzle in the most effective way.
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