submersible electric pump is designed for handling rocks, slurry, gravel, sand, stone, minerals, bentonite and others, with the shortest delivery times. Submersible dredge pumps deliver massive solids production at very low operational costs. The hydraulic dredge pump can install cutters or agitators on various excavators to work like submersible dredging pumps, it can be also used in various hydraulic stations.
1. Design Features:
- Submersible electricpumps have standard high effciency agitator to lift settled solids.
- High abrasion resistance with high chrome wear parts.
- Low rotation speed to reduce wear effect.
- Able to handle up to 70% solids by weight.
- All electric motors are class H with high service factor
- Cutting head is designed to reduce cost of wear parts thanks to interchangeable hard teeth.
- Robust hydraulic motor guarantees strong torque and long life.
- Cutters are designed to work up to 250m working depth, handled by steel cable.
- MOTOR: Could be electric or hydraulic. The cooling of the electric submersible dredgepump is important. If the slurry pump works semi-submerged or if it is going to work dry for extended periods of time, it should include a cooling jacket. For Heavy Duty submersible electric pump, itis recommended to have a motor with Class H insulation. They could include also high temperature and /or moisture sensors.
- IMPELLER: The impeller is the rotating component of the slurry pump. It transfers the centrifugal force to the slurry. Usually made of High-chrome spheroidal cast iron that is very abrasion resistant. The impeller could be closed, semi-open, open or recessed.
- CASING: The casing shapeof the submersible dredge pumpis generally of semi-volute or concentric. It is normally made of cast iron, but depending of the application could come with protective anti-corrosion coating, or could be made in special alloys for abrasive applications.
- SHAFT AND BEARING ASSEMBLY: The shaft is used to transmit the rotatory movement from the motor to the impeller. The shaft has Heavy-duty roller bearings that prevent its displacement in other directions and reduce vibration.
- SHAFT SLEEVE: Its function is to protect the shaft. The shaft sleeve is made of corrosion and abrasion resistant material.
- SEALS PACKAGE: The seals package prevents leakage of slurry into the motor and bearings. The seal package could be composed of lip seals, mechanical seals or hybrid seals.
- UPPER AND LOWER WEAR PLATES: These plates are located over and below the impeller. They are subject to wearing. The calibration of their clearances maximizes the efficiency of the submersible electric pump.
- STRAINER: the strainer prevents the entry of large particles that could get stuck inside the impeller zone causing damage to the pump.
- AGITATOR: Allows the submersible dredge pump to pick up sediments, putting solids on suspension. The way it works, due to the design of the vanes, forces a continuous high pressure flow of liquid towards the sediments, this flow following the shape of a cone; transport the solids to the eye of the impeller achieving a high concentration of solids. The agitator also prevents solids from blocking the holes of the strainer.
2. Submersible Electric Pump Cutters:
The side cutters for submersible dredge pump are designed to let the pump works also in presence of very compact material. Cutters are able to increase solid production by increasing the concentration of the slurry and permit to complete the dredging activities even in the most difficult situations.
Submersible Dredge Pump Cutter Features:
Cutting head is designed to reduce cost of wear parts thanks to interchangeable hard tooth
Robust motor guarantees strong torque and long life.
Cutters are designed to work up to 50m working depth, handled by steel cable.
Submersible Electric Pump Cutter head:
Cutter head for submersible dredge pumps is a custom engineered system. Dredging specialists carefully analyze customer requirements and operating conditions to arrive at the design criteria – cutter profile, size, beta, arm quantity and shape, tooth size, tooth orientation. What is more, the combination of the Cutter head with the agitator avoids any clogging problem at the pump suction.
The Cutter head can be used with every Submersible Electric Pump and can increase the efficiency particularly in presence of hard and compact material.
3. Conclusion
Submersible electric pump is a pump designed to operate in liquids, featuring a special construction that allows the pump to be submerged in the fluid being pumped. It typically consists of an electric motor, pump body, and sealing system. The design of submersible electric pumps enables them to work underwater or in liquids without the need for external suction pipes.
Submersible electric pumps find wide applications in various fields, including drainage, wastewater treatment, groundwater extraction, underwater projects, agricultural irrigation, and industrial applications. They are capable of handling different types of liquids, including clear water, sewage, sludge, and chemicals. These pumps are extensively used due to their high efficiency, reliability, safety, and ease of maintenance.
The operation of a submersible electric pump involves the rotation of the impeller driven by the electric motor, which draws the fluid into the pump body and discharges it through the outlet pipe. Their structural design allows them to operate in the liquid while ensuring the liquid is prevented from entering the motor section through the sealing system, ensuring safety and reliability.
Selecting the appropriate submersible electric pump requires consideration of multiple factors, including the nature of the liquid, required flow rate and head, operating conditions, and reliability requirements. Manufacturers offer a variety of models and specifications of submersible electric pumps to meet different application needs.
In summary, a submersible electric pump is a pump designed to operate in liquids. They are widely used in drainage, wastewater treatment, groundwater extraction, underwater projects, agricultural irrigation, and industrial applications. These pumps offer high efficiency, reliability, safety, and ease of maintenance. Choosing the right submersible electric pump involves considering multiple factors, and regular maintenance is crucial for ensuring reliable operation.
About OCEAN Pump
Tai’an Ocean Pump Co., Ltd is the leading dredge pump machine designer, manufacturer and exporter dedicated in supplying sand pumping and dredging equipments to worldwide customers more than 60 countries since 2012 . Our products are widely used for river sand pumping, mining pumping, pond dredging, reservoir dredging, tailing transportation and land reclamation. Our customers are from Southeast Asia like Malaysia and Singapore, Central Asia like Kazakhstan, South America like Brazil, Africa like Nigeria, Cameroon and Côte dIvoire.
Tai’an Ocean Pump Co., Ltd has a professional technical training, consultation and site service team. All your inquiries and questions will reply within 24 hours. We have lifetime after-sales service for our products and services. Any requirements about our products, just feel free to contact us.
