1. Overview of Sand Unloading Operations

The horizontal sand pumping pump-led sand unloading solution for transportation vessels involves: transporting sand from external sources via vessels, then mixing solid sand with water using high-pressure water guns and horizontal sand pumping pumps to form a high-concentration slurry for long-distance transportation. This solution offers three core advantages:

  • Easy Operation: Integrated design reduces complex procedures.
  • Eco-friendly & Energy-efficient: Lowers energy consumption and dust pollution compared to traditional methods.
  • High Efficiency & Durability: Adapts to high-concentration transportation and ensures long equipment lifespan.

Application Background: In Haiyan County, Jiaxing City, Zhejiang Province, local sand mining is restricted due to environmental regulations in the Hangzhou Bay area. The region urgently needs construction sand, but the original unloading methods (conveyor belts or small mud pumps) had critical flaws:

Low efficiency: Inadequate unloading speed for construction demands.

Short transportation distance: Limited to less than 500 meters.

High equipment wear: Frequent failures and high maintenance costs due to severe abrasion.

2. Technical Solution Communication and Optimization for sand pumping pumps

2.1 Initial Plan: Integrated Sand Unloading Vessel Solution for sand pumping pumps

Design (April 2022):
Based on on-site surveys, Yuanyang Pump Industry proposed a solution centered on the 350GN-50 horizontal sand pumping pumps, equipped with:

Vessel equipment: 350GN-50 horizontal sand pumping pumps + 350S44 high-pressure water pump.

Operation system: Hydraulic levers to control water guns and sand suction pipes.

Successful cases: Long-term stable operation in the Yangtze River Delta and Huangpu River areas.

Customer Feedback:
While approving the solution, the customer raised concerns:

High vessel construction cost: Substantial initial investment.

Tight schedule: Shipbuilding cycles couldn’t meet urgent needs.

2.2 Optimized Plan: Dock-mounted Fixed Sand Solution foe sand pumping pumps Unloading

After on-site simulation, the team adjusted to a dock-mounted horizontal sand pumping pumps solution with manual high-pressure water guns. Key technical considerations include:

Installation Height Control for Sand Pumping Pumps

Principle: Install the pump at or below the liquid level to avoid issues from insufficient vacuum suction

  • Reduced suction: Impacts unloading output.
  • Cavitation wear: Air  accelerates pump abrasion.
  • Lowered head: Air in pipes increases resistance, shortening transportation distance.
  • Priming Solutions (if installation height ≤ 3m)
  • Option 1: Suction pipe with foot valve priming
  • Operation: Prime water and start, using foot valves to prevent back
  • Drawback: Frequent replacement of worn foot valve gaskets.
  • Option 2: Vacuum pump priming (recommended)
  • Configuration: SK-0.2/2.2kW vacuum pump + outlet gate valve.
  • Advantage: Simple operation with minimal maintenance.
  • Power and Pipeline Configuration

Motor selection: The 350GN-50 pump’s rated power is 450kW, but an 8-pole 450kW motor (Shandong Huali brand) is recommended for high-concentration and long-distance transportation.

Pipeline selection: For 600-1300m distances, choose 315mm or 377mm pipes based on cost budgets.

3. Equipment Selection of sand pumping pumps and Parameters

3.1 Final Selection

The customer opted for the 350GN-50 horizontal sand pumping pumps paired with an SK-0.2/2.2kW vacuum pump, using Shandong Huali motors. The in-stock equipment was quickly assembled, tested, and delivered.

3.2 Core Equipment Parameters of sand pumping pumps

Parameter Type Specific Value
Pump Model 350GN-50 Horizontal Sand Pumping Pumps
Flow Rate 1,800 m³/h
Head 50m
Matching Power 450KW
Navar 630G

4. Enterprise Services and Technical Advantages

With 20 years of focus on sand unloading equipment, Yuanyang Pump Industry offers comprehensive services:

Product Portfolio: Horizontal sand pumping pumps, sand suction pumps, dredge pumps, mud pumps, slag pumps, and sand pumping vessels.

Technical Expertise: Custom solutions based on site-specific conditions, with mature equipment selection experience.

After-sales Support: On-site installation and full-scenario solutions for dredging, sand pumping pumps, and relay transportation.

For technical  or equipment procurement, contact us for professional support tailored to your sand unloading needs.

Key Takeaways for Readers:

Solve low-efficiency unloading with high-concentration transportation solutions.

Optimize costs through flexible equipment configurations (e.g., pipeline diameter selection).

Avoid common pitfalls like cavitation by following installation height guidelines.Access 20+ years of industry expertise for customized sand pumping pumps solutions.

This article aims to provide practical insights for sand transportation enterprises, helping them improve unloading efficiency and reduce operational costs. For more technical details, feel free to leave a comment or contact our team.

Contact Information: Phone/WhatsApp: +86 19863885088 Email: jack@tsbeng.com