1.Overview of sand pump dredger technology
1.1 Definition and application of sand pump dredger
As a highly specialized water operation ship, the sand pump dredger (sand dredger) plays an indispensable role in modern water conservancy projects and resource development. It is mainly used to extract riverbed silt, sand and mud and other solid materials. With its powerful sand pumping capacity, it has become the core construction machinery for river dredging, port expansion, lake management and other projects. In the process of river channel regulation, the sand pump dredger can effectively remove the silted sand, restore the normal water section of the river channel, and ensure flood safety; in port construction, it can quickly dredge the waterway and create good conditions for large ships to enter and leave the port; in the lake ecological restoration project, the sand pump dredger helps improve the water quality and ecological environment of the lake by extracting eutrophic silt from the lake bottom.
1.2 Working principle of sand pump dredger
The working process of the sand pump dredger (sand dredger) is a complex and orderly system engineering. When the sand pump dredger arrives at the operation area, the sand pump is first placed in the water through the hoisting device to reach the appropriate operating depth. At this time, the power system is started to drive the sand pump to start running. The impeller of the sand pump rotates at high speed, forming a strong negative pressure at the inlet of the pump, sucking the mud formed by the mixture of sand and mud on the river bottom or seabed and water into the pump body.
As the impeller continues to rotate, the mud is pressurized in the pump body and then discharged through the delivery pipe connected to the sand pump. At the other end of the pipe, the mud is transported to the designated discharge location, such as the yard on the shore or the transport ship. During the entire sand pumping process, the sand pump dredger needs to continuously adjust its position and posture according to the actual operation situation to ensure that the sand pump can always be in the best working state. At the same time, the control system will monitor the working parameters of the sand pump and the operating status of the hull in real time, and adjust and control the equipment as needed to ensure the efficient and stable operation of the sand pumping operation.
In addition, in order to improve the efficiency of sand pumping, some sand pump dredgers will also be equipped with auxiliary equipment, such as reamer devices. The auger can break up the hard sand on the riverbed, making it easier to be pumped out by the sand pump. During the operation, the auger rotates under the drive of the power system to loosen the sand on the riverbed, and then the sand pump pumps up the loosened sand. In this way, the sand pump dredger’s operating capacity under complex geological conditions can be greatly improved.
2.The practice of Taian Ocean Pump Industry’s 10-inch sand pump dredger in the African project
2.1 Equipment configuration of sand pump dredger
2.1.1Diesel engine model
Taian Ocean Pump Industry’s 10-inch sand pump dredger (sand dredger) in the African project selected a high-performance diesel engine to power it. The specific model is YC6B180L-D20, which belongs to the YC6B series and adopts advanced combustion technology and fuel injection system. Advanced combustion technology can make diesel fully burn in the cylinder, improve fuel utilization and reduce fuel consumption; the high-precision fuel injection system can accurately control the injection amount and injection time of fuel according to the load and working conditions of the engine, ensuring that the engine always maintains a stable and efficient operating state.
This diesel engine has a powerful power output and can provide sufficient power support for the sand pump and hull movement of the sand pump dredger. In the complex water environment of Africa, facing the turbulent water flow and high-load sand pumping operations, the engine can operate stably to ensure that the sand pump dredger can work continuously and efficiently. At the same time, it also has the characteristics of low noise and low emissions, which meets international environmental protection standards. The low noise design prevents the sand pump dredger from causing excessive noise pollution to the surrounding environment during operation; the low emission characteristics reduce the emission of exhaust gas and protect the local ecological environment, which is especially important for sand pump dredgers operating in ecologically fragile areas.
2.1.2 Sand Pump Model
The sand pump equipped with Sand dredger is one of the key equipment for its efficient sand pumping operation. The sand pump adopts advanced hydraulic design concepts and greatly improves the efficiency of the sand pump by optimizing the design of key components such as the impeller shape and pump body flow channel. At the same time, high-quality wear-resistant and corrosion-resistant materials are used to manufacture the flow-through parts of the sand pump, such as the impeller and pump casing, so that it can operate stably for a long time in harsh environments containing a large amount of sand and mud.
Its unique structural design gives it good anti-clogging performance, and it can effectively avoid the occurrence of blockage even when pumping mud containing large particles of impurities. In the sand pumping project in Africa, the 10-inch sand pump and diesel engine are used together to give full play to its high efficiency and stability, ensuring that the sand dredger can successfully complete the sand pumping task under various complex working conditions.
2.1.3 Pipeline system
The pipeline system of the sand pump ship is an important channel connecting the sand pump and the discharge location, and its performance directly affects the efficiency and reliability of the sand pumping operation. The pipeline system mainly includes water inlet pipes, drainage pipes and mud pipes. The water inlet pipe is responsible for introducing the water flow in the operating area into the submersible pump, providing sufficient water source for the sand pump to ensure that the sand pump can work normally. The water inlet pipe adopts a special structural design, which can effectively prevent debris from entering the pipeline and avoid blockage.
2.1.4Control system
The control system of Taian Ocean Pump Industry’s 10-inch sand dredger adopts advanced PLC technology and human-machine interface to realize the automation and intelligent control of various equipment of the sand dredger. As the core of the control system, the PLC controller can accurately control and coordinate the operation of sand pumps, diesel engines, water pumps and other equipment by writing complex control programs. For example, when the sand pump is started, the PLC controller will gradually start the relevant equipment according to the preset program to ensure that the start sequence between the equipment is correct and avoid damage to the equipment due to improper start.
2.2 Performance of sand dredger in African projects
At the sand pumping site in Africa, Taian Ocean Pump Industry’s 10-inch sand dredger faces extremely severe challenges. The water flow of the rivers in the area is turbulent and the flow rate is much higher than that of ordinary rivers. The strong water flow puts extremely high demands on the stability of the sand dredger and the reliability of the equipment. At the same time, the sand and mud content in the river water is extremely high, and the sand particles are coarse and hard, which makes it difficult for traditional sand pumping equipment to perform the tasks in this area. However, the sand pump dredger of Taian Ocean Pump Industry has successfully overcome these difficulties with its advanced design and high-performance equipment configuration.
The hull design of the Sand dredger fully considers the special environment of African waters. It adopts advanced stability design and wind and wave resistance technology, so that it can still maintain good stability and operating performance under severe weather conditions such as turbulent water flow, high waves and strong winds. In a strong wind weather operation, although the wind force reached level 8 and the water flow was extremely turbulent, the sand pump dredger was still able to remain stable, and the sand pump continued to operate efficiently, successfully completing the sand pumping task of the day.
After long-term and high-intensity operations, the durability and reliability of the sand pump dredger have been fully verified. During the months of project implementation, the sand pump dredger has experienced countless starts, stops and continuous operations, but the performance of various equipment has not shown a significant decline. Even during the replacement cycle of some vulnerable parts, the overall performance of the equipment remains at a high level, and always maintains a good sand pumping effect. This is due to the strict production process and quality control system of Taian Ocean Pump Industry. From raw material procurement to product assembly, every link has been strictly tested and checked to ensure the high quality of the product.
2.3 Perfect after-sales service support
Tai’an Ocean Pump Industry is well aware that high-quality after-sales service is an important link to ensure the smooth operation of sand dredgers at the African project site. Therefore, the company has formed a professional after-sales service team to provide customers with comprehensive, one-stop after-sales service. In terms of technical support, the after-sales service team is always available to answer technical questions encountered by customers during the use of sand dredgers. Whether it is the operation method of the equipment, troubleshooting or performance optimization, team members can provide customers with professional guidance and solutions in a timely manner through telephone, video conferencing and other means.
In terms of parts supply, Tai’an Ocean Pump Industry has established a perfect parts inventory management system. For the 10-inch sand dredgers used in African projects, sufficient wearing parts and key parts are reserved, such as sand pump impellers and seals, diesel engine filters, spark plugs, etc. Once the customer needs to replace parts, the after-sales service team can deliver the required parts to the project site in the shortest time, greatly shortening the maintenance time of the equipment and improving the utilization rate of the equipment.
3.Summary and Outlook
The successful practice of Taian Ocean Pump’s 10-inch sand dredger in African projects fully demonstrates its leading position in the field of sand dredger technology and excellent product performance. From the technical principles of sand dredgers to equipment configuration, from outstanding performance in the complex environment of Africa to perfect after-sales service support, every link reflects Taian Ocean Pump’s strict requirements for product quality and high attention to customer needs.
In addition, Taian Ocean Pump will further expand the international market and strengthen cooperation and exchanges with global customers. Through project practices in different regions, we will accumulate more experience, understand the needs and market characteristics of different customers, and provide more personalized and professional sand dredger solutions for global customers. I believe that in the future, Taian Ocean Pump’s products will play a more important role in the global sand dredger market and make greater contributions to promoting global water conservancy project construction and water resources development.
