What are the common solid particle sizes in dredging slurry?

In the dredging industry, the size of solid particles in dredging slurry typically falls within the following ranges:

1.Common Solid Particle Sizes

Fine Particles: Particles smaller than 75 micrometers (µm). These particles generally do not settle in pipelines but remain suspended, aiding in the transport of larger particles. If the proportion of these fine particles exceeds 50%, the slurry behaves more like a non-settling slurry.

Medium Particles: Particles between 75 micrometers and 100 micrometers. These particles create some resistance during transport but are unlikely to cause pipeline blockages.

Coarse Particles: Particles larger than 100 micrometers. These particles generate significant resistance during transport and are more likely to cause pipeline blockages. Therefore, higher flow rates are required to ensure their smooth transport.

2.Impact of Particle Size on Pump Performance

Particle Size and Flow Rate: Larger solid particles require higher flow rates to overcome the resistance during transport. For example, when the particle size increases from 0.125 millimeters to 0.44 millimeters, the required flow rate also increases accordingly.

Particle Size and Wear: Larger particles cause more severe wear on the pump and pipeline systems during transport. Therefore, selecting appropriate pump materials and design structures is crucial to reduce wear and extend equipment life.

3. Methods for Measuring Particle Size

Sieving Method: Solid particles are sieved through screens of different mesh sizes, and the weight of particles in each sieve fraction is measured to plot a sieve curve, thereby determining the percentage of particles of different sizes. For example, d85=3 millimeters indicates that 85% of the particles have a diameter less than or equal to 3 millimeters.

4. Classification of Particle Sizes

Non-Settling Slurry: Particles smaller than 60-100 micrometers do not settle to the bottom but remain suspended, forming a uniform mixture.

Settling Slurry: Particles larger than 100 micrometers settle quickly to the bottom but can be kept suspended by turbulence. This type of slurry can be defined as a pseudo-uniform mixture or a non-uniform mixture and may partially or completely stratify.

5. Impact of Particle Size on Transport Performance

Transport Performance of Multi-Sized Particles: In multi-sized slurry, particles of different sizes exhibit different characteristics during transport. For example, coarse and fine particles behave differently under various operating conditions. As the solid concentration or mixture velocity decreases, the deviation in characteristics between particles of different sizes increases.

In summary, the size of solid particles in dredging slurry typically ranges from 75 micrometers to 100 micrometers, but the specific size depends on the specific dredging conditions and material properties. Understanding these particle sizes is crucial for selecting the appropriate dredging equipment and optimizing transport efficiency

Tai'an Ocean Pump Co., Ltd. is a leading designer, manufacturer, and exporter of dredging slurry pumps and related equipment. The company specializes in supplying sand pumping and dredging equipment to customers worldwide. With over 30 talented sand pumping experts and a 15,000 square meter factory, Tai'an Ocean Pump offers more than 4 series and 20 kinds of sand pumps, slurry pumps, gravel pumps, sand dredgers, and related parts to meet various pumping requirements.

Key Products and Solutions

Slurry Pumps: heavy-duty slurry pumps handle high-concentration solid mixtures efficiently and are used for direct extraction or as relay pumps for long-distance transportation. They are widely applied in mining and construction.

Submersible Slurry Pumps: Designed for underwater operations, these pumps effectively transfer liquids and solid mixtures in complex environments, making them essential for various applications, particularly in challenging conditions where reliability is key.

Submersible Sand Pumps: Suitable for transferring sand and other solid materials, these pumps ensure high efficiency even in demanding situations, making them vital in construction and dredging projects.

Submersible Dredge Pumps: Ideal for deep-sea dredging, these pumps efficiently process sediment and silt, enhancing operational effectiveness and significantly increasing the speed of dredging operations.

Jet Suction Dredgers: Specifically designed for underwater dredging, these dredgers can transport slurry over long distances, offering both versatility and efficiency, effectively meeting the diverse needs of clients.

Steel Cable Dredge: This integrated product provides efficient dredging solutions that adapt to multiple environments and meet diverse customer needs, proving to be a reliable choice for clients seeking effective dredging solutions.

Manufacturing Facilities and Quality Control

Tai'an Ocean Pump's state-of-the-art manufacturing facility spans 15,000 square meters and is equipped with advanced machinery such as casting molding machines and CNC milling machines. The company has invested over $700,000 in recent years to enhance production facilities, improve working conditions, and increase employee welfare and training. This investment ensures high product quality, reduced delivery times, and competitive costs.

Global Reach and Customer Support

Tai'an Ocean Pump has provided professional pump solutions and services to over 60 countries. The company's products are widely used in river sand pumping, mining pumping, pond dredging, reservoir dredging, tailing transportation, and land reclamation. Customers are from various regions, including Southeast Asia, Central Asia, South America, and Africa.

Contact Information

For more detailed selection options and solutions, please contact Tai'an Ocean Pump's excellent sales representative.

Doris Chen

Phone/WhatsApp: +86 185 6229 3319

Email: oc@tsbeng.com

Tai'an Ocean Pump Co., Ltd. is committed to product innovation and customer satisfaction, continuously working to become the leader in supplying sand, slurry, gravel pumping, and dredging solutions and related parts.