Efficient and reliable hydraulic submersible slurry pumps are a key component of many construction and infrastructure projects, from foundation reinforcement to bridge rehabilitation. To handle these demanding applications, construction professionals often employ a combination of hydraulic submersible slurry pumps and excavators. By leveraging the power and versatility of these two specialized machines, workers can precisely control grout flow, access hard-to-reach areas, and optimize the entire grouting process. However, to ensure safe and efficient operation, it is important to follow the correct steps to install, position, power, and maintain this equipment. In this article, OCEAN Pump will introduce key considerations and best practices for using hydraulic submersible slurry pumps in conjunction with excavators on construction sites.

 hydraulic submersible slurry pumps
hydraulic submersible dredge pump
heavy duty submersible slurry pump
submersible dredge pump factory

1.What is Hydraulic Submersible Slurry Pumps ?

A hydraulic submersible slurry pump represents a category of submersible pumps that operate through hydraulic propulsion. Specifically, it is a pumping apparatus designed to handle and transport viscous fluids or slurries laden with solids. These pumps are uniquely engineered to function fully immersed in the pumped fluid, rendering them suitable for applications in mining, dredging, and other industries involving dense, abrasive materials. Furthermore, they are particularly suited for slurry applications where electricity is not available or variable speeds are necessary.

Additionally, hydraulic submersible pumps can be equipped with agitators, functioning similarly to submersible dredge pumps, and are thus also referred to as hydraulic dredge pumps in certain regions. Irrespective of location, provided there is a hydraulic supply, these pumps will operate effectively. Notably, OCEAN Pump’s hydraulic submersible pump’s wet wear components are crafted from high chromium 27% material, ensuring superior wear resistance and a hardness level of HRC65.

2.The key features of Hydraulic Submersible Slurry Pumps

2.1 Fully Submerged Design

The entire pump unit, including the motor, is designed to be completely submerged in the slurry or fluid being pumped. This allows the pump to operate directly within the source material, eliminating the need for additional piping or suction arrangements.

2.2High Abrasion Resistance

The pump components, such as the impeller, volute, and casing, are constructed using highly durable and abrasion-resistant materials, like chromium-alloy steel or ceramic-coated components. This helps to withstand the wear and tear caused by the abrasive solids present in the slurry.

2.3Excellent Solids Handling Capability

These pumps are capable of handling a wide range of solid particles and materials, including sand, gravel, ore, and other mining or dredging byproducts. They can efficiently transport these high-density, solid-laden fluids without clogging or excessive wear.

2.4High Efficiency

The hydraulic design of these pumps, combined with their submerged configuration, allows for high efficiency in energy conversion and fluid transport, making them economical to operate.

2.5 Versatile Applications

Hydraulic Submersible Slurry Pumps can be used in a variety of applications, such as mining, mineral processing, dredging, tailings management, and sludge transportation, among others.

2.6 Hydraulic System Characteristics

The hydraulic system of excavators typically uses piston pumps to provide high-pressure, high-flow hydraulic power. The hydraulic system can deliver fast and flexible force output to meet the various action requirements of the excavator.

3.How Do Hydraulic Submersible Slurry Pumps Work

When using a hydraulic submersible slurry pump in conjunction with an excavator, the following steps should be followed:

3.1 Installation and Connection

3.1.1 Ensure the pump is properly installed and securely mounted on the arm or connection point of the excavator. For example, our pump comes with a dedicated mounting bracket designed to fit the specific excavator model precisely.

3.1.2 Ensure the hydraulic hoses are properly connected and tightened to prevent any leaks.

3.2Positioning the Excavator

3.2.1 Position the excavator in a stable and convenient location near the area where the grout needs to be pumped.

3.2.2 Assuming the work site is on a slope, ensure the excavator is positioned in a way that maintains balance and stability during the pumping operation.

3.3 Power and Startup

3.3.1 Start the hydraulic system of the excavator to power the pump.

3.3.2 Check the control panel or control levers, and adjust the pump’s speed and flow rate as needed.

3.3.3 In some cases, you may have multiple settings or valves to control the pump’s performance based on the characteristics of the grout.

3.4 Monitoring and Adjustment

3.4.1 Closely monitor the operation of the pump and the flow of the grout.

3.4.2 Make necessary adjustments to the excavator’s position or the pump’s settings to optimize the pumping process.

3.4.3 If the grout is too thick, you may need to increase the pump’s power or change the excavator’s arm position to improve the suction.

3.5 Periodic Maintenance

3.5.1 Perform daily maintenance on the pump after use, such as cleaning the pump to remove any accumulated debris or inspecting components for wear.

3.5.2 This helps extend the pump’s service life and ensure its reliable performance in future operations.

heavy duty submersible slurry pump Bottom Cutter

Bottom Cutter Type

Pump only Type

Pump Only Type

Pump with side agitators

Pump with Side Agitators

4.Common configurations of hydraulic submersible slurry pumps and excavators

Parameter Reference of Submersible Slurry Pump for 20-30-40 Excavator
ExcavatorParameterBottom CutterPump onlyPump with side agitators
20tonsOutlet (inch)686/8
Flow rate (m3/h)350500350
Head (m)202020
Pump speed (rpm)980980980
Displacement (cc)107160107
Oil supply (L/Min)110160120
Power (KW)457037
Working pressure (Mpa)25-3025-3025-30
Cage diameter (mm)650//
Cage displacement (cc)1600//
Cage working pressure (Mpa)20-25//
Cage oil supply (L/Min)60//
Agitator motor displacement (cc)//400
Agitator motor pressure (Mpa)//16
Agitator oil supply (L/Min)//50
ExcavatorParameterBottom CutterPump onlyPump with side agitators
30tonsOutlet (inch)8108
Flow rate (m3/h)500700500
Head (m)202020
Pump speed (rpm)160160160
Displacement (cc)980980980
Oil supply (L/Min)160200160
Power (KW)759070
Working pressure (Mpa)25-3025-3025-30
Cage diameter (mm)650//
Cage displacement (cc)1600//
Cage working pressure (Mpa)20-25//
Cage oil supply (L/Min)50//
Agitator motor displacement (cc)//500
Agitator motor pressure (Mpa)//20-25
Agitator oil supply (L/Min)//40
ExcavatorParameterBottom CutterPump onlyPump with side agitators
40tonsOutlet (inch)101210
Flow rate (m3/h)7001000700
Head (m)202020
Pump speed (rpm)200250200
Displacement (cc)980980980
Oil supply (L/Min)200250200
Power (KW)9011090
Working pressure (Mpa)25-3025-3025-30
Cage diameter (mm)800//
Cage displacement (cc)2000//
Cage working pressure (Mpa)20-25//
Cage oil supply (L/Min)70//
Agitator motor displacement (cc)//600
Agitator motor pressure (Mpa)//20-25
Agitator oil supply (L/Min)//50

5. Conclusion

When using a hydraulic submersible slurry pump in conjunction with an excavator, it is important to follow the manufacturer’s instructions and safety guidelines to ensure efficient and safe operation. By properly installing, positioning, starting and monitoring the system, as well as performing regular maintenance, you can ensure that these two powerful pieces of machinery work in harmony to increase productivity and efficiency. For more information, please contact OCEAN Pump engineer Lingda Kong

Lingda Kong
Tai’an Ocean Pump Co.,Ltd
Mobile/Viber/Whatsapp/Wechat: +86 18562293317
Email: sales@slurrypumpdm.com