Leader Dredger
+86 136 8536 8256
+86 183 6360 5622
info@leaderdredger.com
aftersale@leaderdredger.com
+86 183 6360 5622
Cutter Suction Dredger
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.
The complete hydraulic system of pond dredge for sale includes five parts, namely power components, executive components, control components, auxiliary components (accessories) and hydraulic oil.
The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the liquid. The pressure energy refers to the oil pump in the hydraulic system, which provides power for the entire hydraulic system. The structure of hydraulic pumps usually includes gear pumps, vane pumps, plunger pumps and screw pumps.
The function of the executive components (such as hydraulic cylinders and hydraulic motors) is to convert the pressure energy of the liquid into mechanical energy and drive the load to perform linear reciprocating or rotational movement.
Control components (ie various hydraulic valves) control and regulate the pressure, flow and direction of the liquid in the hydraulic system. According to different control functions, hydraulic valves can be divided into pressure control valves, flow control valves and directional control valves. Pressure control valves include safety valves (safety valves), pressure reducing valves, sequence valves, pressure relays, etc.
Flow control valves include throttle valves, regulating valves, diverting and collecting valves. Directional control valves include check valves, hydraulic control check valves, shuttle valves, reversing valves, etc. According to different control methods, hydraulic valves can be divided into on/off control valves, fixed value control valves and proportional control valves.
Auxiliary components include fuel tanks, oil filters, coolers, heaters, accumulators, oil pipes and pipe joints, sealing rings, quick-change joints, high-pressure ball valves, hose assemblies, pressure measuring joints, pressure gauges, oil level gauges, Oil thermometer, etc.
Hydraulic oil is the working medium that transfers energy in the hydraulic system. There are various types of mineral oils, emulsions and synthetic hydraulic oils.
The dredging system is divided into a control system and a monitoring system, which is a highly integrated system.
Dredging monitoring 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.
The main advantages of the monitoring system:
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.
Trolley system
Anchor rod system
Flowmeter, concentration meter
Relay pump
Service boat
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.
Feature:
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 pond dredge has a main console in the cab. The components of the console are all miniaturized devices. The internal structure of the console is convenient for maintenance of the front and side of the board, and the panel of the console adopts an openable structure.
1. Pond dredge console is equipped with AC power distribution unit and DC power distribution unit.
2. The diesel engine control unit of the dredger is located on the control table.
3. Mud pump pressure gauge (mechanical type), vacuum gauge (mechanical type).
4. Pressure gauge for hydraulic equipment (mechanical).
5. The dredger power equipment control unit controls the following equipment:
(1). Emergency pump hydraulic pump
(2). Engine room fan
(3). Shaft seal water pump
(4). Fire pump.
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.
1. Matching degree with dredging pump
2. Is the engine power output stable?
3. Continuity of trouble-free operation
4. Fuel consumption
5. Durability
6. Volume and weight
7. After-sales response speed
8. Maintenance costs
Better engines can ensure the practicality, economy and rationality of pond dredge
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 common. Different dredging tools have different effects on construction requirements and the surrounding environment. In the dredging project, a reasonable dredging tool should be selected. The reamer head is always 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 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
20 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
