The sand dredger boat utilizes a suction system, comprising power system, sand suction pump, suction pipes and arms, to draw sand and water from the water’s bottom into its interior. Use high pressure water pump generates high-pressure water or cutter head to break sand layer and increase sand concentration. The mixture of sand and water is then conveyed through pipelines.
Once the sand has been collected, it can be discharged and transported to a designated location. This can be accomplished by either pumping the sand ashore or directly loading it onto barges or other vessels for further transportation. It is worth noting that the specific design and working principles of sand dredgers may vary depending on their models and sizes. The purpose of this article is to offer readers a comprehensive explanation of the working principle and practical applications of the sand dredger developed by the Tai’an OCEAN Pump.
1.What is sand dredger boat?
Sand dredger boat, also known as sand suction dredger or sand pump dredger, is specifically for extracting sand and sediment from bodies of water. It is equipped with a variety of components and systems that facilitate the efficient removal of sand from the water and its transportation to the desired location. Sand dredgers come in different sizes and configurations, tailored to meet specific dredging needs and operational scales. These machines are commonly used in activities such as beach nourishment, river channel maintenance, harbor and port construction, land reclamation, and mining operations.
The sand dredger boats of Tai’an OCEAN Pump mainly include jet suction dredger, cutter suction dredger and submersible pump dredger. Which will be designed according to the working condition and the customers’ requirements. The sand dredgers are designed with powerful sand suction system, sand breaking system, stable dredger pontoon and reasonable operating system and pipeline. Which enable them to effectively remove sediments and sand from underwater areas.
These sand dredgers are extensively used in dredging projects aimed at maintaining waterways, deepening channels, or reclaiming land. The sand dredgers are versatile and essential vessels that facilitate efficient dredging operations. They play a vital role in preserving navigable waterways, ensuring the integrity of water channels, and restoring global ecosystems. By effectively extracting sand and sediment from water bodies, they enable vessel passage and support sustainable land utilization. Operating at varying depths, these machines offer flexibility and adaptability to cater to diverse sand dredging requirements, making significant contributions to water infrastructure construction and maintenance.
2.What Is the Feature of the Sand dredger?
2.1 Efficient Clearing Capability
Sand dredgers utilize a combination of sand breaking technology and efficient centrifugal suction pump to effectively remove sand, silt, and other sediments from the water. The impact force of the water jets or cutter head agitates the sediment at the riverbed and make the sand suspending around the suction inlet. Simultaneously, the suction system swiftly draws in and transports the loosened sediments to designated locations.
When recommending dredger solutions to clients, the OCEAN Pump technical team follows a rigorous and rational approach, considering the actual site conditions comprehensively. We understand the critical importance of selecting the appropriate water jet pressure or cutting power, which necessitates a thorough evaluation of factors like the hydraulic pressure of the flushing pump, extraction depth, particle size to be extracted, and sand hardness. Insufficient pressure or cutting power may fail to effectively dislodge the sand, affecting sand suction concentration. Therefore, the proper design and selection of all devices of the dredger essential to ensure efficient and smooth sand dredging operations.
2.2 Adaptability of the Sand dredger
The design of Tai’an OCEAN Pump’s dredges is aimed at designing sand breaking systems for different sand layer conditions. For loose sand layers, the jet suction dredger is usually recommended, while for hard or sticky solid layers, stronger cutters or cutters are used in conjunction with high-pressure water. And design the absorption pipe structure or choose different dredger types according to different water depths and water flow velocities. The maximum dredging depth of a jet suction ship is usually within 30 meters, the maximum dredging depth of cutter suction dredger is 15 meters, and a submersible pump dredger can achieve even greater depth. As the extraction depth increases, the container size must be proportionally increased to ensure stability during the extraction process.
2.3 Autonomy and Mobility of the Sand Dredger Boat
There are three main ways for dredgers to move. The first method is the traditional cable pulling method, which involves installing 3-4 manual winches. These winches anchor the ship and can be adjusted in position using wire ropes. This method is usually used on smaller dredgers. The second method involves installing outboard engines, especially propeller. The impeller is powered by diesel engines, allowing the vessel to move forward, backward, and change direction. The third method is to move the cutter suction dredger with positioning spud and anchors, or to install dedicated hydraulic spud carriers for dredger movement. The autonomy of dredgers allows for easy moving at the worksite, reducing reliance on external vessels.
2.4 Size Flexibility of the Sand Dredger Boat
We think about the overall buoyancy of the vessel and actively incorporated valuable suggestions from our esteemed clients and design the dredger size properly. To meet market demands, we develop specific size specifications that are compatible with container transportation for most dredger models. These specifications include a main pontoon width of 2.2 meters, and detachable side pontoons, allowing for adaptation to various transportation and operational requirements.
It is important to note that the pump unit within the central compartment has been pre-configured for easy connection, streamlining the process for our customers. The entire assembly can be placed into a container and shipped directly to the customer. Customers only need to install the bolts to connect the side pontoons and pipelines to the main pontoon, significantly reducing installation time, minimizing operational complexity, and providing a more convenient user experience.
2.5 Conveying Capacity of the Sand Dredger Boat
The performance of sand dredger machine is primarily determined by the configuration of the pump unit. We are dedicated to offering customers a range of pump unit solutions to meet their specific requirements. For instance, we provide big flow pump with lower pump head unit configurations for customers who prioritize high flow rates but do not require long-distance transportation. Similarly, we have comprehensive matching solutions for customers who need both high flow rates and long-distance transportation, spanning distances of 1000-2000 meters. Our goal is to provide powerful and economical solutions that meet the unique needs of our customers.
3. What Is the Parameter of the Sand Dredger Boat?
The parameters of a sand dredger may vary depending on the specific model and manufacturer. However, here are some common parameters that are typically considered when describing a sand dredger:
3.1 Dredging Depth of the Sand Dredger Boat
The dredging depth is a key parameter for evaluating the performance of a dredging machine, as it determines the machine’s ability to achieve the desired dredging depth. The OCEAN Pump team considers dredging depth as an important factor when selecting a sand mining machine, as it directly affects the selection and size design of the dredger. The maximum dredging depth of the jet suction dredger is usually within 30 meters. The dredging depth will affect the size of the vessel and the length of the suction pipe. The suction depth of a cutter suction dredger is generally within 15 meters. The deeper the suction, the longer the suction head in front, and a longer dredger hull is required for balance. When the extraction depth is greater than 30 meters, we usually recommend submersible pump dredge. Firstly, the submersible pump submerged into water bottom to work, so it is not limited by the suction range of the centrifugal pump. In addition, Tai’an OCEAN Pump’s latest developed submersible pump can achieve dredging depth of 150 meters underwater. Play its unique role at depths that traditional dredger boats cannot reach.
3.2 Power of the Sand Dredger Boat
The total power is usually equal to the power of the dredge pump plus the power of other related equipment on the dredger boat. The power of the dredge pump depends on its flow rate, head, and efficiency. Other related equipment mainly includes high-pressure water pumps or cutters, suction head lifting winches, anchor winches, lighting and AC equipment, etc. The entire power calculation and selection of power systems such as diesel engines or generators require professional personnel to calculate and configure them reasonably based on operating conditions and customer requirements. Please contact me for more details: Sally Peng +86 13793808065(WhatsApp/Tel)
3.3 Pump Flow Rate of the Sand Dredger Boat
This parameter refers to the volume of sand water mixture that the dredging machine’s pump can handle within a specific time range. Usually measured in cubic meters per hour (m ³/h). However, for practical purposes, understanding the actual sand output is more useful. The actual sand output refers to the volume or weight of sand that can be obtained within one hour. Generally speaking, the sand concentration of a sand dredger is usually 15% -25%, which depends on the sand layer conditions on the worksite and the operational experience of the workers. In addition, approximately 1.3-1.4 metric tons of sand is equivalent to one cubic meter of sand.
The normal sand output range of the dredgers made by Tai’an OCEAN Pump is 10-1500ton. For other specific requirements, please contact Sally Peng: +86 13793808065
3.4 Delivery Distance of the Sand Dredger Boat.
The maximum conveying distance of the dredger is also a key performance. This distance is influenced by various parameters, including pump head, height difference, conveying pipeline diameter, and solid particle diameter. When we receive customer requirements for discharge distance, the OCEAN Pump team will perform professional calculations to determine the necessary pump head. We consider factors such as pipeline diameter and flow rate to develop appropriate solutions that meet customer needs. Our goal is to ensure stable output flow while meeting the customer’s delivery distance requirements.
The transport distance range of OCEAN Pump dredgers is usually 50-4000 meters. For longer conveying distances, dredge booster pumps are usually required.
4. In conclusion
Sand dredger boat is a specialized equipment designed and manufactured by Tai’an OCEAN Pump, used to remove sediment, silt, or sand from the bottom of water bodies such as rivers, lakes, and coastal areas. The sand mining machine works based on the principle of suction, using a pump to generate suction and suck in the sand water mixture. Select the most suitable pump and ship type based on different sand layer conditions, pumping depth, spacing, production requirements, etc. On the basis of ensuring production and meeting operating conditions, choose the most economical and practical solution configuration. The OCEAN Pump team aims to provide customers with comprehensive services and professional guidance.
Contact with us for more details:
Sally Peng
Tel /WhatsApp /Wechat :+86 18554212226 +86 13793808065
Email: oceanpump2@tsbeng.com, sales@sanddredgers.com
