2. Specifications of DMH Series Submersible Sand Pump

DMH hydraulicsubmersible slurry pump

2. Features of DMH Series Submersible Sand Pump

• High-strength steel constructionfor wetted components, including the casing, agitator, wear liners, and impeller.
• Advanced double mechanical seal arrangementwith an oil bath to protect the hydraulic motor from the pumped fluid.
• Thermal overload and moisture detection float switchfor enhanced safety during operation.
• High-pressure water gunincluded as a standard feature.
• Optional extra agitator systemcapable of handling up to 50% solids by weight.
• Steep performance curvesthat ensure high efficiency.
• Exceptional reliability and durabilityfor long-term use.

3. What Is the Driving Mode of a Hydraulic Submersible Slurry Pump?

The hydraulic submersible slurry pump is a high-efficiency device designed for transporting liquids with solid particles in underwater or muddy environments. There are two primary driving modes: hydraulic pump station drive and excavator drive.

3.1 Hydraulic Pump Station Drive

The hydraulic pump station drive is a traditional method that requires a dedicated hydraulic pump station for the slurry pump. This station typically includes one or more hydraulic pumps that supply high-pressure oil to the pump’s hydraulic motor through dedicated pipes. This setup ensures stable oil pressure and flow, enabling the slurry pump to operate efficiently under various conditions.

TAIAN OCEAN Pump’s design allows operators to adjust oil pressure and flow as needed, accommodating different delivery tasks. The hydraulic pump station can be powered by a diesel engine or an electric motor, depending on customer needs and site conditions. Diesel engines offer a self-sufficient solution, ideal for remote areas with limited infrastructure, while electric motors provide a cost-effective and eco-friendly option where stable power is available. The hydraulic pump station can also integrate control functions like pressure regulation and remote monitoring, ensuring safe and efficient pump operation. Although this method requires a significant initial investment for the pump station, it typically results in low long-term operating costs.

3.2 Excavator Drive

The excavator drive connects the hydraulic submersible slurry pump directly to the hydraulic system of the excavator. The excavator’s hydraulic pump supplies power to the slurry pump’s hydraulic motor through hydraulic lines. This method reduces equipment complexity and cost, as it eliminates the need for a separate hydraulic pump station.

Additionally, the mobility of the excavator allows for quick transfers between work sites, enhancing operational flexibility. The excavator’s hydraulic system usually provides sufficient power and flow to handle various complex conveying tasks, making this method particularly suitable for projects that demand rapid movement and frequent changes in working positions.

4. How to Choose a Hydraulic Submersible Slurry Pump for an Excavator

When selecting a submersible hydraulic slurry pump for an excavator, consider several factors to ensure it meets the project’s specific requirements. Here are the key steps and considerations:

4.1 Confirm the Excavator Model

Start by confirming the excavator’s specific model and tonnage (e.g., 20 tons, 30 tons, or 40 tons). Provide the brand and model information to the supplier, like OCEAN Pump, so engineers can recommend a suitable slurry pump based on the excavator’s hydraulic system parameters.

4.2 Choose the Type of Submersible Hydraulic Slurry Pump

Select from various types of submersible hydraulic slurry pumps offered by OCEAN Pump based on the project’s needs:

• Single Submersible Hydraulic Slurry Pump: Lacks an agitator, suitable for general slurry transport.
• Type with Agitators on Both Sides: Ideal for improving the mixing of solid particles and liquids, preventing sedimentation.
• Type with a Cutter at the Bottom: Designed for thicker or compacted sediments, effectively loosening and mixing solid particles.

Ensure the pump’s performance parameters—flow rate, head, and speed—align with project requirements, and confirm the maximum solid particle size the pump can manage to avoid clogging.

4.3 Compatibility of the Hydraulic System

Verify that the hydraulic motor of the slurry pump is compatible with the excavator’s hydraulic system to ensure seamless operation.

4.4 Wear-Resistant Material Selection

Choose pumps with flow-through components (like the pump casing, impeller, and guard plate) made from high chromium alloy or other durable materials to enhance longevity and reduce maintenance needs.

4.5 Supplier Service

Select a supplier that offers comprehensive after-sales service, including technical support, parts supply, and warranty services. OCEAN Pump’s salesman Lingda can provide expert recommendations on common wear parts, and the company offers after-sales support in many regions.

4.6 Price and Cost-Effectiveness

Consider the price and operating costs while ensuring the pump meets technical requirements. OCEAN Pump products are known for their cost-effectiveness.

4.7 Field Testing

If possible, conduct field tests to validate the pump’s performance and adaptability in real conditions.

4.8 Custom Options

If standard pump types do not meet specific needs, explore customization options. OCEAN Pump has a technical team ready to discuss tailored solutions via phone or video.