20 Years of Manufacturing Experience for Dredgers [Exporting to Africa]

• Customization: Available
• Type: Cutter Suction Dredger
• Power Type: Diesel
• Model NO.: 07030918
• Slot Type: CTN
• Customized: Customized
• Condition: New
• Warranty: 365day
• After-sales Service: Lifetime After-Sales Service
• Working Environment: Underwater Operations
• Main Structure: Shipboard
• Output System: Fully Hydraulic
• Company Output: 180 Ships Per Year
• Transport Package: Container Shipping
• Specification: 10m-30m
• Trademark: HHIE
• Origin: China
• Production Capacity: 300cubic Meters Per Hour
• Package Size: 12.00cm * 1.80cm * 1.60cm
• Package Gross Weight: 6000.000kg

Product Description

   
 Welcome very much to our company's international website. If you need a dredger, please take a look below. We are a professional shipyard from China, and we believe there will be products suitable for you!

Company Profile

 

China Shandong Haohang Intelligent Equipment Co., Ltd
 
We have been engaged in the manufacturing of dredgers for over 20 years, and we believe that we are the most professional. Our main products include: cutter suction dredgers, chain bucket sand mining ships, water purification ships, water transport ships, gold mining ships, sea sand desalination equipment, etc!
Our profession is extracting sand from water, extracting various minerals, long-distance transportation in water, and cleaning weeds on the water surface!

#Positioning device of cutter suction dredger

**1, Introduction**

In dredging engineering, the cutter suction dredger plays a crucial role. And its precise job positioning relies on advanced and reliable positioning devices. These devices not only ensure the accurate position of the dredger in complex waters, but also provide a solid foundation for efficient and high-quality dredging operations.

**2, Common types of positioning devices for cutter suction dredgers**

1. Global Positioning System (GPS)
-GPS is currently one of the most widely used positioning technologies. It can provide high-precision ship position information and monitor the position, speed, and direction of the dredger in real-time.
-For example, a large cutter suction dredger is equipped with advanced GPS positioning devices, which enable it to control position deviation within a very small range during wide river dredging operations.

2. Inertial Navigation System (INS)
-INS uses inertial measurement units to measure the acceleration and angular velocity of ships, and then calculates their position and attitude.
-A cutter suction dredger operating in the marine environment, due to GPS signal interference, the INS system plays a crucial role in ensuring the continuity and accuracy of ship positioning.

3. Laser positioning system
-The laser positioning system determines the position of the ship by emitting laser light towards a fixed target and receiving reflected light.
-In the narrow port waters, a small cutter suction dredger successfully avoided surrounding obstacles and completed the dredging operation accurately using a laser positioning system.

**3, Working principle of positioning device**

1. GPS positioning principle
-GPS satellites transmit signals to the Earth, and the receiver on the dredger receives signals from multiple satellites and determines its position by calculating the time difference of signal propagation.

2. INS positioning principle
-The accelerometer inside INS measures the acceleration of the ship and calculates the velocity and displacement through integration; Gyroscopes measure the angular velocity of ships to determine their attitude.

3. Laser positioning principle
-The laser beam emitted by the laser emitter is irradiated onto a fixed reflective target, and the receiver receives the reflected laser. Based on the time and angle of the laser's round-trip, the distance and direction between the ship and the target are calculated.

**4, The importance of positioning devices in the operation of cutter suction dredgers**

1. Ensure dredging accuracy
-Accurate positioning can enable the dredger to operate according to the predetermined route and depth, avoiding situations of missed or over excavation.

2. Improve homework efficiency
-Accurate positioning reduces the time for ships to adjust their positions, thereby improving the efficiency of the entire dredging operation.

3. Ensure job safety
-Being able to detect the distance between the ship and surrounding obstacles in a timely manner to avoid collision accidents.

**5, Conclusion**

The positioning device of the cutter suction dredger is the key to achieving efficient and accurate dredging operations. With the continuous development of technology, the accuracy and reliability of positioning devices will continue to improve, providing stronger support for the development of the dredging industry. In future engineering practice, we should continuously explore and apply new positioning technologies to meet the increasingly complex dredging operation requirements.

Chinese made dredgers not only occupy an important position in the domestic market, but also have been widely recognized in the international market. At present, it has been sold to 68 countries and regions worldwide and has achieved success. These dredgers are widely used in deep-sea sand mining, coastal deepwater port channel dredging, reclamation, and coastal maintenance projects, making important contributions to China's marine engineering and infrastructure construction. We can tailor the most cost-effective dredging equipment for you based on your construction environment and work requirements!

 

Detailed Photos

 

          A cutter suction dredger is a dredging tool that uses a rotating cutter to loosen the soil on the riverbed or seabed, mixes it with cement to form mud, and then sucks the mud into the pump body through a suction pipe and sends it to the discharge area. It is mainly used for dredging in inland lake areas and coastal ports, suitable for excavating soil such as sand, sandy loam, and silt. During the construction of the cutter suction dredger, the dredging, transportation, and unloading processes can be completed continuously in one go, resulting in high production efficiency.
The main structure of a cutter suction dredger includes the hull, cutter, suction pipe, pump body, and discharge pipe. The cutter is a key component of a cutter suction dredger, usually installed at the bow or side of the ship. By rotating the cutter, the sediment at the bottom of the water is crushed and mixed with water to form mud. The suction pipe is used to suck mud into the pump body, which transports the mud to the discharge area through the discharge pipe.

#The positioning pile system of the cutter suction dredger's hull

**1, Introduction**

As an efficient dredging tool, the cutter suction dredger plays an important role in water conservancy engineering, waterway construction, and other fields. The ship positioning pile system is a key component to ensure the stable operation of the cutter suction dredger.

**2, The components of the ship positioning pile system**

1. Positioning pile
-Usually made of high-strength steel, it has sufficient strength and corrosion resistance to withstand enormous working pressure and erosion in underwater environments.
-For example, positioning piles made of special alloys can maintain stability in harsh sea conditions.

2. Drive device
-Responsible for driving the lifting and rotation of positioning piles, common driving methods include hydraulic drive and electric drive.
-The hydraulic drive device equipped on a large cutter suction dredger can quickly and accurately control the movement of the positioning pile.

3. Guiding device
-Ensure that the positioning pile remains vertical during the lifting process to avoid displacement and tilting.
-High quality guiding devices can reduce the friction between the positioning pile and the hull, and extend the service life of the equipment.

**3, Working principle of ship positioning pile system**

When the cutter suction dredger reaches the working area, the driving device lowers the positioning pile to the bottom of the water. After the positioning pile is inserted into the water bottom, it provides stable support for the hull through friction and support force with the water bottom. During the homework process, the ship may be affected by factors such as water flow, wind and waves, resulting in a tendency to move. At this time, the positioning pile can effectively resist these external forces and maintain the stability of the ship's position.

**4, The advantages of ship positioning pile system**

1. Improve homework accuracy
-A stable hull can ensure that the suction head accurately excavates the predetermined position, improving the accuracy and quality of dredging.
-In a waterway widening project, due to the precise positioning of the ship's positioning pile system, the dredger successfully completed the operation according to the design requirements, and the width and depth of the waterway met the standards.

2. Adapt to complex environments
-Whether in turbulent rivers or rough seas, the ship positioning pile system can ensure the stable operation of the dredger.
-A certain dredger can still carry out dredging work normally under strong wind conditions, relying on a sturdy positioning pile system.

3. Increase homework efficiency
-A stable hull reduces operational interruptions and adjustment times caused by hull shaking, thereby improving overall operational efficiency.
-Compared to dredgers without a positioning pile system, ships equipped with this system can complete more dredging work in the same amount of time.

**5, Maintenance and upkeep**

Regular maintenance and upkeep are crucial to ensure the normal operation of the ship's positioning pile system. This includes checking the surface wear of the positioning pile, the lubrication condition of the driving device, and the flexibility of the guiding device.

**6, Conclusion**

The ship positioning pile system is an indispensable part of the cutter suction dredger, which provides strong support for the stable operation of the dredger and plays an important role in various water conservancy and marine engineering. With the continuous advancement of technology, we believe that this system will become more perfect and efficient, making greater contributions to the development of related fields.

The construction process of a cutter suction dredger is generally as follows:
1. Construction preparation: including the formulation of construction plans, survey of construction areas, equipment inspection and commissioning, etc., then positioning the ship and accurately positioning the cutter suction dredger in the construction area. According to the wind and flow conditions, set up the windward and upstream anchors in order to stabilize the ship's hull.
2. Lowering the cutter bridge: Lower the cutter bridge to the designated cutter position for excavation.
3. Soil conveying: The soil crushed by the cutter is transported to the designated mud receiving area through a high-power centrifugal mud pump and a discharge pipeline.
4. Construction monitoring: Real time monitoring of excavation depth, instantaneous water level, cross-sectional view of excavation trench or underwater three-dimensional map and other data to ensure construction quality and safety.
5. Moving ship position: According to construction needs, move the ship to the next construction area by retracting and releasing anchor cables and adjusting the position of the winch.
The specific construction process may be adjusted appropriately based on engineering requirements, soil quality, hydrology, and other factors. topic

Product Parameters

Model	8inches	10 inches	12 inches	14 inches	16 inches	18 inches	20 inches
Hull length	8-12m	12-14m	14-16m	16-18m	18-20m	20-22m	22-24m
Excavation depth	6m-8m	8m-10m	10m-12m	12m-14m	14m-16m	16m-18m	18m-20m
Conveying distance	500m	800m	1000m	1500m	2000m	2500m	3000m
Equipped with power	55KW	132KW	180KW	220KW	260KW	300KW	350KW
Hourly production	200t	260t	300t	350t	400t	450t	500t

     Due to factors such as mining environment, materials, equipment, and demand, the above parameters are for reference only (not as the final standard values). For accurate equipment dimensions and parameters, please contact our professional designer!

Product Description

 

      Display of some parts of the dredger: scraper head, sand pump, gearbox, engine, conveying pipeline, float, etc. The parts equipped by our company are all high-quality products that meet national standards, and can also be equipped with designated brands according to customer requirements!

The following are the daily maintenance and precautions for dredgers:

Daily maintenance:
1. Regularly clean the hull, remove any attached debris, marine organisms, etc., and keep the surface of the hull clean.
2. Inspect and maintain various mechanical components, such as the cutter system, mud pump, engine, etc., to ensure their normal operation. Add lubricating oil and replace vulnerable parts as required.
3. Inspect and maintain the electrical system to ensure the safety and reliability of the circuit and the normal operation of electrical equipment.
4. Check and maintain the hydraulic system to ensure that there are no leaks in the hydraulic components, the hydraulic oil is clean and at the appropriate level.
5. Inspect and maintain the pipelines, valves, etc. of the dredger to prevent leakage and blockage.
6. Regularly inspect and calibrate various instruments and sensors to ensure accurate data.

Notes:
1. Strictly follow the operating procedures to avoid equipment damage or safety accidents caused by misoperation.
2. Pay close attention to the water depth and flow of the construction water area to ensure the safety of the dredging operation.
3. Pay attention to the operation status of the equipment, and if any abnormalities are found, stop the machine for inspection and handling in a timely manner.
4. Provide training and management for crew members, improve safety awareness and operational skills.
5. Ensure that safety equipment such as firefighting and lifesaving are complete and effective on board.
6. Reasonably arrange the operation time and intensity of the dredger to avoid excessive use.
7. Regularly conduct comprehensive inspections and maintenance on the dredger, and record the maintenance status.

                                  Shandong Haohang Intelligent Equipment Co., Ltd.
  was established in 2018, headquartered in Shandong Province, China. It is a professional manufacturer of dredgers. The company has years of industry experience and a professional technical team, committed to providing customers with high-quality dredger products and high-quality after-sales service.
The company's products cover various types and specifications of dredgers, including cutter suction dredgers, rake suction dredgers, chain bucket dredgers, etc. These dredgers are widely used in fields such as waterway dredging, port construction, hydraulic engineering, and marine engineering.
The company focuses on technological innovation and product research and development, continuously introducing advanced technology and equipment to improve product performance and quality. At the same time, the company also has a sound quality management system and after-sales service system to ensure that customers receive timely support and guarantee during use.
The company has customers all over the world and exports its products to multiple countries and regions. The company adheres to the business philosophy of "quality first, customer first", with the aim of integrity, innovation, and win-win, and has established long-term and stable cooperative relationships with customers.


#Precautions for maintenance and upkeep of ship positioning pile system

**1, Regular inspections**

1. Surface condition of positioning piles
-Regularly inspect the surface of the positioning pile for wear, corrosion, and cracks.
-Pay special attention to the parts that come into contact with the water bottom. If there is severe wear, they should be repaired or replaced in a timely manner to prevent a decrease in strength from affecting the positioning effect.
-For example, if the anti-corrosion coating on the surface of the positioning pile is found to have peeled off, it should be promptly repainted to prevent further corrosion.

2. Drive device
-Check if the connecting components of the drive device are loose, such as bolts, nuts, etc.
-For hydraulic drive systems, it is necessary to check whether there is any leakage in the oil pipes, and whether the cleanliness and liquid level of the oil are normal.
-The electric drive system needs to check whether the wiring of the motor is firm and whether the motor operates smoothly.

3. Guiding device
-Check if the rollers or sliders of the guiding device are worn and if the lubrication is good.
-Ensure that the track of the guiding device is free of debris and deformation to ensure the smooth and vertical lifting of the positioning pile.

**2, Cleaning and lubrication**

1. Cleaning
-Timely clean the surface of the positioning pile system of mud, debris, and oil to avoid the accumulation of dirt affecting the normal operation of components.
-Especially after working in a seawater environment, it is necessary to rinse with fresh water to remove salt and prevent corrosion.

2. Lubrication
-Regularly add an appropriate amount of lubricating oil or grease to moving parts, such as pins, rollers, etc., to reduce friction and wear.
-But be careful to avoid excessive lubrication to prevent dust and impurities from being adsorbed.

**3, Anti-corrosion treatment**

1. Coating maintenance
-Regularly inspect and repair the anti-corrosion coating of positioning piles and related components to ensure their integrity.
-In areas where the coating is damaged, rust removal treatment should be carried out first, and then repainting should be carried out.

2. Cathodic protection
-For dredgers operating in seawater for a long time, cathodic protection devices can be used to prevent electrochemical corrosion.
-Regularly check the working status of the cathodic protection system to ensure its normal operation.

**4, Operating standards**

1. Correct operation
-Train operators to strictly follow the operating procedures when using the positioning pile system to avoid damage caused by incorrect operations.
-For example, when lifting positioning piles, it is necessary to operate evenly and slowly to prevent impact and overload.

2. Avoid overload
-Not exceeding the designed bearing capacity of the positioning pile system to prevent structural damage caused by excessive stress.

**5, Storage and Protection**

1. Idle storage
-When the dredging captain is idle for a long time, the positioning pile should be raised and properly fixed to avoid collision with external objects.
-Protective sleeves can be covered on the surface of the positioning pile to prevent rust and corrosion.

2. Protection against harsh environments
-In severe weather conditions, such as strong wind and rainstorm, the inspection and protective measures for the positioning pile system shall be strengthened.

In short, the maintenance and upkeep of the ship's positioning pile system needs to be meticulous, comprehensive, and regular in order to ensure its stable performance, extend its service life, and ensure the normal operation of the cutter suction dredger.

20 years of manufacturing experience for dredgers [exporting to Africa]