How to Choose Submersible Sand Pump for Dredging ?

1.What is Submersible Sand Pump

OCEAN Pump manufactures a specialized submersible sand pump designed for handling tailings and transporting coal slag in high-intensity environments. The submersible sand pump shares a similar structural prototype to the impeller of the horizontal slurry pump, including key components such as the impeller. These pumps offer several advantages, including ease of operation, strong self-mixing capability, excellent wear resistance, energy efficiency, environmental friendliness, low noise levels, and a low failure rate. Tai'an Ocean Pump Co., Ltd. has been consistently introducing innovative submersible sand pump products in recent years. These innovations include submersible sand pumps equipped with high-pressure water jets, pumps capable of handling large particles, pumps with side cutters, hydraulically driven pumps with side cutters, stainless steel submersible slurry pumps, and deep well submersible sand pumps. The diverse range of sand pump products caters to various construction requirements across different working conditions. OCEAN Pump's products particularly showcase their professionalism in the dredging industry.

2. Types of Submersible Sand Pump

When customers are selecting submersible sand pumps, they may occasionally encounter misunderstandings. While these pumps have inherent advantages such as being lightweight and user-friendly, as well as having self-stirring capabilities, it's important to acknowledge that this design also has its own drawbacks.

To ensure the appropriate selection of submersible sand pumps, it is crucial to choose the right type based on the specific operating conditions. The following is a compilation of various submersible sand pump types for selection, tailored to different construction scenarios:

1. Conventional submersible sand pump

The submersible sand pump is constructed with durable alloy steel and incorporates an advanced structural design. It boasts several key features, including high efficiency, wear resistance, automatic coupling, and a long operational lifespan. This pump exhibits a robust capability to handle the discharge of solid particles, such as sand and gravel, making it ideal for dredging operations on dredgers, ships, and slag transfer applications. OCEAN Pump has enhanced work efficiency by incorporating an additional agitator.

The submersible slurry pump aligns the motor and mechanical pump on the same axis, with a coaxial agitator positioned at the bottom. Developed based on principles of fluid mechanics, its wear-resistant alloy steel material ensures high efficiency, wear resistance, automatic coupling, and prolonged durability. It is capable of effectively handling the discharge of solid particles like sand, gravel, and cinder. The submersible sand pump prototype is well-suited for various working conditions, including tailings treatment and fine mortar pumping. Its original design purpose was for pumping fly ash and sedimentation tanks in power plants, thus making it fully qualified for such operations. The additional mixing impeller effectively breaks up and disperses mud or sediment, ensuring stable operation even under high concentrations.

For situations involving the long-term accumulation of sediment, OCEAN Pump engineers recommend the installation of two to three high-pressure water guns. These water guns utilize impactful forces to disperse the sediment into the water, thereby improving sand extraction efficiency. The recommended supply pressure for the high-pressure water pump is between 4-6 kg, with the power slightly lower than that of the submersible sand pump (e.g., when using a 22 kW submersible sand pump, a 7.5-11 kW high-pressure pump can be matched).

In instances where highly viscous clay layers are encountered during the sand pumping process, and the high-pressure water pump has limited effectiveness, external side knives can be utilized to directly agitate the sand, enabling suction-based sand pumping. The power range for the side knife mixer is 4 kW to 22 kW, and it can be customized based on customer requirements.

2.Wide impeller channel submersible sand pump

The wide impeller channel submersible sand pump is specifically designed for challenging working conditions involving sand, mud, and cobblestones. Its design prototype is based on the impeller structure of a closed slurry pump. However, it requires improvements when dealing with media containing small and large particles, as it tends to have poor flow performance and is prone to clogging. To address this challenge, the OCEAN Pump design team has developed a semi-open impeller or a three-blade impeller structure for handling media with small and large particles. These improvements ensure continuous pump performance and provide significant advantages in terms of overflow performance and wear resistance when handling large particles. However, the reduced number of blades can result in relatively inefficient shaft operation.

Therefore, when choosing a submersible sand pump, it is important to consider the specific working conditions. This type of pump may not be the optimal choice for applications involving sand or uniformly sized grains. While it offers advantages in terms of durability, service life, and application range, it is less efficient compared to a water pump with the same power, and its lift capacity may be slightly lower than that of the original submersible sand pump. The wide impeller channel submersible sand pump exhibits superior performance under certain working conditions but may have limitations in others.

When purchasing a submersible sand pump, it is crucial to fully consider factors such as the working environment and particle size to ensure the selection of the most suitable pump type. Additionally, attention should be given to performance parameters such as overflow performance and shaft efficiency to achieve efficient and stable operation.

3.Hydraulic driven submersible sand pump

The design of the hydraulically driven submersible sand pump takes into account the specific requirements of underwater operations. Its hydraulic drive offers significant advantages in shallow water areas. Compared to electric drive, the hydraulic drive system developed by OCEAN Pump provides enhanced flexibility and reliability, enabling stable operation in various challenging environments. The pump body is equipped with 2 or 3 side cutters that effectively blend mud or sand materials during the sand pumping process, thereby improving pumping efficiency.

Hydraulically driven submersible sand pumps find extensive applications in engineering, construction, mining, and other fields. For instance, in river regulation, port construction, tunnel excavation, and similar projects, these pumps effectively address issues such as sediment blockage and low work efficiency. Additionally, their high reliability ensures long-term stable operation and reduces the occurrence of failures, ultimately improving construction progress.

However, there are certain considerations associated with the application of hydraulically driven submersible sand pumps. Maintenance and upkeep of the pump are relatively complex, necessitating regular inspections and replacement of wearing parts. Furthermore, the energy consumption of hydraulically driven submersible sand pumps is relatively high, resulting in greater operating costs during prolonged operation. Therefore, when utilizing a hydraulically driven submersible sand pump, careful selection based on actual needs is essential. It is also crucial to carry out operation and maintenance practices in line with the specific circumstances to fully leverage the performance advantages of the pump.

4.Stainless steel submersible sand pump

The structural design and material selection of stainless steel submersible sand pumps and deep well submersible sand pumps prioritize stability and durability. These pumps are designed with the consideration of long-lasting performance. For instance, the use of 316L stainless steel material enhances the pump's corrosion resistance and wear resistance, making it suitable for complex and harsh working conditions. The design of these pumps also emphasizes continuous operation, ensuring efficient and stable performance.

When selecting a submersible sand pump, customers should thoroughly assess the actual conditions on-site, including sand source conditions and construction requirements. In addition to considering basic parameters such as flow rate, lift, power, and speed, it is crucial to choose a pump type that suits the specific sand conditions on-site. Sometimes, the most suitable pump type can be determined through a process of elimination, ensuring optimal pump performance and avoiding issues caused by improper selection.

The submersible sand pump is designed with advanced concepts, allowing for versatile use in various applications. However, customers often make hasty choices, resulting in selection deviations. To address this, the OCEAN Pump technical team has developed a range of carefully designed solutions, enabling the submersible sand pump to better adapt to dredging, desalination, mineral processing, and other projects. In summary, stainless steel submersible sand pumps and deep well submersible sand pumps have gained the trust of customers due to their excellent performance and wide application range. When making a purchase, customers should choose the most suitable pump type based on their specific needs.

3.How to Choose Submersible Sand Pumps?

1 Determine the capacity of the submersible sand pump

When selecting a submersible sand pump, it is important to determine the required pump capacity or flow rate, typically measured in gallons per minute (GPM) or cubic meters per hour (m3/h). This value depends on the volume of sand or solids that need to be moved and the desired operating speed. It is worth noting that the capacity or flow rate specified in the DMD submersible sand pump parameter table refers to the flow rate of clean water with no solids.

OCEAN Pump possesses professional flow testing equipment that can accurately measure the flow rates of different pump types. They offer submersible sand pumps with various flow levels to cater to the specific requirements of customers.

2. Choose the appropriate submersible sand pump lift head

When determining the required pressure for submersible sand pump cleaning tasks, two crucial factors to consider are the head and discharge distance. The head refers to the vertical distance from the water surface to the highest discharge point, while the discharge distance represents the horizontal span between the submersible sand pump and the discharge point. Both of these factors significantly influence the pressure needed for effective cleaning.

It is essential to take appropriate measures based on the specific requirements of each customer. If the lift is too low, it may result in insufficient liquid delivery. Conversely, if the lift is too high, energy consumption and costs may increase. For instance, when cleaning locations only require discharging slurry or sand to the shore, opting for a high-flow, low-lift pump type can meet the basic cleaning needs while minimizing energy and resource wastage.

However, for customers who need to transport slurry over longer distances, such as 500 meters, 1000 meters, 2000 meters, or even further, the situation is different. In such cases, a comprehensive consideration of the head, flow rate, and discharge distance is necessary. It may even be required to increase the number of booster pumps to ensure the efficient transport of slurry over long distances. OCEAN Pump takes into account the actual circumstances and customer needs when addressing such issues. Based on the required lift, flow rate, and discharge distance, we provide customers with the most suitable solution, which may involve customized designs, to ensure efficient and stable completion of cleaning tasks.

3. Consider submersible sand pump construction and materials

When considering the construction and materials of a submersible sand pump, it is important to recognize their significant impact on performance and durability. Typically, the pump's structure can be categorized into two types: open and closed. The open structure impeller allows for a larger flow rate and lower head, making it easy to clean. This design is suitable for projects with high barge output and no requirement for material discharge to the shore. On the other hand, the closed structure impeller has a smaller flow channel and limited flow, but offers a higher lift and less wear. However, it is more challenging to clean. This design is suitable for extracting materials that are less prone to blockage, such as fine sand and mud near the seaside.

To combine the advantages of both designs, the R&D department at OCEAN Pump has developed a semi-open impeller or a three-blade impeller structure. These designs ensure a balanced flow and lift while allowing the passage of slurry. This improvement provides significant advantages in terms of overflow performance and wear resistance for large particle submersible sand pumps.

In terms of materials, OCEAN Pump utilizes high-chromium wear-resistant alloy materials for the flow parts of their submersible sand pumps. Additionally, customized services are available to accommodate special slurry materials, such as stainless steel or other suitable materials, based on the customer's requirements.

Overall, the construction and materials of a submersible sand pump play a crucial role in its performance and longevity. Consideration of the specific project requirements and consulting with OCEAN Pump can help determine the optimal construction and material choices for the submersible sand pump.

4 Pay attention to the power and voltage of the submersible sand pump

When selecting a submersible slurry pump, two important considerations are the power supply and practical requirements. Choosing the appropriate pump power is crucial to ensure sufficient flow and head, which directly affect the pump's overall performance. Selecting an inadequate power supply may lead to insufficient pump performance, impacting its effectiveness in carrying out its intended function. Conversely, selecting a power supply that is too high can result in unnecessary energy consumption, increased operating costs, and potential strain on the equipment, potentially affecting its service life.

Another critical factor to consider is the variation in industrial voltage frequencies across different countries. Industrial voltage frequencies commonly used in some countries are 380V/50HZ, while in others it may be 440V/60HZ. To ensure the stable operation of the submersible slurry pump, OCEAN Pump takes into account the voltage frequency of the customer's country. They select an appropriate pump model and customize it to suit the specific local conditions.

OCEAN Pump provides comprehensive one-stop services to customers, including support for frequency conversion control cabinets. These control cabinets enable users to easily adjust the flow and lift of the pump, ensuring the safe operation of the motor and meeting diverse operational requirements. This not only improves the utilization efficiency of the submersible slurry pump and saves energy but also reduces operating costs in the long run.

In summary, when choosing a submersible slurry pump, careful attention should be given to the power supply and practical requirements. OCEAN Pump considers these factors, customizing the pump to match the specific voltage frequency and providing additional support through frequency conversion control cabinets. This ensures optimal performance, energy efficiency, and cost-effectiveness of the submersible slurry pump.

4. About OCEAN Pump

Established several decades ago, Tai'an Ocean Pump Co., Ltd. has consistently upheld the core values of professionalism, innovation, and efficiency. Focusing on the research, development, and production of various heavy-duty submersible dredging pumps, our company plays a vital role in the extraction and treatment of mud, sludge, gravel, and sediment. Our product range is extensive and comprehensive, which is rare in the industry. It includes submersible dredging pumps, horizontal sand pumps, and sand pumping equipment, among others. These high-performance and reliable submersible pump equipment have earned unanimous praise from customers worldwide due to their excellent performance and consistent operation.

We have specially developed sand pumps and sand pumping equipment to cater to diverse working conditions. Quality control is of utmost importance to us, and we adhere to high standards and strict requirements. All our heavy-duty products have obtained ISO9001 quality management system certification, ISO14001 environmental management system certification, and OHSAS18001 occupational health and safety management system certification. These certifications not only demonstrate our commitment to stringent quality control but also showcase our corporate responsibility towards environmental protection, health, and safety.

Thanks to our excellent quality and solid reputation, Tai'an Ocean Pump Co., Ltd.'s products have successfully been exported to 36 countries worldwide, earning recognition in the international market. Looking ahead, we remain dedicated to technological innovation, enhancing the competitiveness of our products, and providing high-quality and efficient pump equipment and services to a broader customer base. We strive to contribute to the industry's development and growth.

Tai’an Ocean Pump Co.,Ltd

Mobile/Whatsapp/Wechat: +86 18562293317

Email:?[email protected]

Website:?www.slurrypumpdm.com