What Is The Working Principle Of Sand Dredger Machine

The sand dredger machine operates based on several key components and processes. To begin with, the machine utilizes a suction system, comprising suction pipes or arms, to draw sand from the water's bottom into its interior. Subsequently, a powerful water pump generates high-pressure water jets that mix with the sand, aiding its transport. The resulting mixture of sand and water is then conveyed through pipelines or discharge hoses.

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 dredger machines 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 machine developed by the OCEAN Pump group.

1.What is Sand Dredger Machine?

A sand dredger machine, also known as a sand dredger or jet suction dredger, is a specialized watercraft designed 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 dredger machines 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.

Customized sand dredger machines are designed with high-pressure water jet systems and powerful suction systems, which enable them to effectively remove sediments and sand from underwater areas. The water jet system agitates the sediments, while the suction system collects loose materials and transports them through pipelines to storage or processing areas. These sand dredger machines are extensively used in dredging projects aimed at maintaining waterways, deepening channels, or reclaiming land.

Sand dredger machines 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 Machine?

2.1?Efficient Clearing Capability?Of The Sand Dredger Machine:

Sand dredger machines utilize a combination of high-pressure water jetting technology and efficient suction systems to effectively remove sand, silt, and other sediments from the water. The working principle revolves around the impact force created by the water jets, which dislodges and agitates the sediment at the riverbed. Simultaneously, the suction system swiftly draws in and transports the loosened sediments to designated locations.

When recommending jet pumps 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, 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. Excessive water jet pressure can lead to excessive dispersion of sand, decreasing clearing efficiency, while insufficient pressure may fail to effectively dislodge the sand, also affecting efficiency. Therefore, the proper selection of the jet pump is essential to ensure efficient and smooth sand dredging operations.

2.2 Adaptability?Of The Sand Dredger Machine

Sand dredger machines are designed with remarkable adaptability to various aquatic environments, be it shallow or deep waters. The OCEAN Pump team has developed an exclusive dredging system that incorporates flexible front-end configurations. This system utilizes rubber hoses in conjunction with suction heads that can be tailored in length to meet specific requirements. Typically, the suction head length is set at 4 meters and can be positioned horizontally or vertically at the front of the vessel, allowing for the extraction of sand layers at different depths. Portable sand dredger machines are commonly employed for extracting sand layers ranging from 0 to 20 meters deep. It's worth noting that as the extraction depth increases, the vessel size must be proportionally increased to ensure stability during the extraction process.

2.3?Autonomy and Mobility?Of The Sand Dredger Machine

Sand dredger machines utilize two primary methods for movement in rivers or lakes. The first method is the traditional rope-pulling approach, which involves the installation of 3-4 manual winches. These winches anchor the vessel and enable its position to be adjusted using steel wire ropes. The second method involves the installation of outboard engines, specifically paddle wheels. These paddle wheels are powered by single-cylinder diesel engines and provide the vessel with the ability to move forward, backward, and change direction. OCEAN Pump offers both of these movement solutions to cater to the diverse needs of its customers. These solutions ensure stability and reliability during equipment operation. The autonomy of the sand dredger machine allows for convenient transfer between different projects and work sites, reducing reliance on external vessels.

2.4 Versatility?Of The Sand Dredger Machine

Sand dredger machines, particularly those of the jet suction type, provide more than just sediment removal and dredging capabilities. They exhibit exceptional versatility in a wide range of fields, including river channel maintenance, land reclamation, coastal management, and embankment construction. This versatility positions the sand dredger machine as a multi-purpose vessel that efficiently caters to the requirements of diverse projects. With its broad range of applications and promising prospects, the sand dredger machine exemplifies its utility and potential in various industries.

2.5 Size Flexibility?Of The Sand Dredger Machine

have taken into account the overall buoyancy of the vessel and actively incorporated valuable suggestions from our esteemed clients. To meet market demands, we have developed specific size specifications that are compatible with container transportation. These specifications include a central compartment width of 2.2 meters, and detachable floating boxes on both sides, 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 pump unit to the vessel, significantly reducing installation time, minimizing operational complexity, and providing a more convenient user experience.

2.6 Conveying Capacity?Of The Sand Dredger Machine

The performance of a jet suction dredger is primarily determined by the configuration of the pump unit within the vessel. At OCEAN Pump, we are dedicated to offering customers a range of pump unit solutions to meet their specific requirements in various working conditions. For instance, we provide corresponding pump 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 tailored solutions that address the unique needs of our customers.

3. What Is The Parameter Of The Sand Dredger Machine?

The parameters of a sand dredger machine may vary depending on the specific model and manufacturer. However, here are some common parameters that are typically considered when describing a sand dredger machine:

3.1 Dredging Depth Of The Sand Dredger Machine

The dredging depth refers to the maximum depth at which a sand dredger machine can effectively extract sand from the water bed. It is a crucial parameter for evaluating the performance of the dredging machine, as it determines the machine's capability to reach the desired sand extraction depth. The OCEAN Pump team considers dredging depth as a significant factor when selecting a sand dredger machine, as it directly relates to the design of the vessel's dimensions. Based on customer feedback, portable sand dredger machines typically have a maximum dredging depth of around 20 meters. If there is a need to increase the dredging depth further, we will calculate the appropriate vessel dimensions and configuration based on principles of buoyancy and balance.

3.2 Pump PowerOf The Sand Dredger Machine

Pump power refers to the power needed to operate the pump, enabling suction and conveying of the sand and water mixture. It is typically measured in kilowatts (kW) or horsepower (HP). In the case of portable sand dredger machines, the vessel is typically equipped with 2-3 diesel engines. One diesel engine is specifically dedicated to powering the sand pumping system and typically utilizes a 4-cylinder or 6-cylinder diesel engine to drive the sand pump. Another diesel engine is responsible for driving the winch and jet pump, often designed as a single-cylinder or 4-cylinder engine. As an optional component, a third diesel engine may be employed to drive the propeller, typically utilizing a single-cylinder diesel engine. Alternatively, customers can choose an electric motor as the driving mechanism, but it is important to ensure on-site power supply or have a dedicated generator set for electricity generation.

3.3 Pump Flow RateOf The Sand Dredger Machine

This parameter refers to the maximum volume of the sand-water mixture that the pump of a dredging machine can handle within a specific time frame. It is typically measured in cubic meters per hour (m3/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. As a general guideline, approximately 1.3-1.4 metric tons of sand is equivalent to one cubic meter of sand-water mixture.

The sand output of portable sand dredging vessels varies depending on the model. For instance, a 4-inch sand dredging vessel can produce approximately 30 metric tons of sand per hour, a 6-inch sand dredging vessel can produce approximately 60 metric tons of sand per hour, an 8-inch sand dredging vessel can produce approximately 80 metric tons of sand per hour, and a 10-inch sand dredging vessel can produce approximately 100 metric tons of sand per hour. Please note that the actual sand extraction rate may vary depending on factors such as the location of the dredging site and the operating conditions.

3.4 Discharge DistanceOf The Sand Dredger Machine

The maximum discharge distance of a sand dredger machine is a crucial performance indicator. This distance is influenced by various parameters, including pump pressure head, power, conveying pipeline diameter, and flow velocity. When we receive the customer's requirements for the discharge distance, the OCEAN Pump team conducts professional calculations to determine the necessary pump pressure head. We consider factors such as pipeline diameter and flow velocity to develop an appropriate solution that meets the customer's needs. Our goal is to ensure a stable output flow while catering to the customer's long-distance transportation requirements.

For portable sand dredging vessels, their primary application is typically high-flow, short-distance transportation, with a discharge distance usually not exceeding 200 meters. If you require a discharge distance exceeding 200 meters, or even reaching 1000-2000 meters, please contact Engineer Lingda Kong via WhatsApp (+86 185 6229 3317) for further consultation.

3.5 Size and Weight Of The Sand Dredger Machine

The physical dimensions and weight of a sand dredger machine are critical factors that impact transportation, assembly, and operation. These parameters include length, width, height, and total weight. At OCEAN Pump, our vessel dimensions are designed to align with standard shipping containers, simplifying the loading and unloading process using trucks. Specifically, sand dredger machines with 4-inch and 6-inch specifications can fit into a 20-foot container, while those with 8-inch and 10-inch specifications can fit into a 40-foot container. It is important to note that for the 8-inch and 10-inch designs, our research and development team at OCEAN Pump has implemented optimized upgrades to further enhance operational efficiency.

Please be aware that sand dredger machines may have significant variations in their parameters and configurations depending on the specific model. To obtain accurate and comprehensive information regarding the parameters of a particular machine, we recommend contacting Engineer Lingda Kong via WhatsApp (+86 185 6229 3317) or referring to the specifications provided for that specific machine. It is crucial to have a precise understanding of the equipment parameters to ensure the smooth progress of your project.

In conclusion

A Sand Dredger Machine is a specialized equipment designed and manufactured by the marine pump industry for the purpose of removing sediments, sludge, or sand from the bottoms of water bodies, including rivers, lakes, and coastal areas. Operating on a suction principle, the Sand Dredger Machine utilizes pumps to create suction and draw in the sand-water mixture. It is most commonly used in water areas with relatively calm waves and flat bottoms. OCEAN Pump specializes in manufacturing Sand Dredger Machines that are equipped with either diesel or electric engines, ensuring optimal efficiency and minimal energy consumption.

Lingda Kong

Tai’an Ocean Pump Co.,Ltd

Mobile/Whatsapp/Wechat: +86 18562293317 Email:?[email protected]

Website:?www.slurrypumpdm.com