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Brief Introduction to River Sand Pumping Method

Brief Introduction to River Sand Pumping Method

Pumping sand dredger and chain bucket dredger have become two popular ways in current sand mining. Pumping sand dredger and bucket chain dredger are the widely used sand extraction equipment. There is a lot of confusion when the customers choose the sand mining method. They do not know the specific choice of which way is more appropriate. The following article will give the brief introduction about the working principle of the two ways and adapt the working condition, it will be convenient for you to choose.

Description of Pumping Sand Dredger and Bucket Chain Dredger

Pumping Sand Dredger

Pumping sand dredger is also called sand suction dredger. Which is one sand pumping type, composed of the hull, sand pump, winch, diesel engine, gearbox, high-pressure pump system, hydraulic system, walking system, etc.

Pumping sand dredger uses a high-pressure pump system or cutter suction system to spray or stir the sand layer into medium liquid, and the sand will be transported to the specified position through centrifugal force that is caused by the sand pump. The sand pumping machine is mainly suitable for more sand-less stone conditions.

Bucket Chain Dredger

Bucket chain dredger is a kind of dredger with chain buckets, composed of the hull, frame, buckets, chain, transmission system, deceleration system, power system, separation system, etc.

Bucket chain dredger or bucket mining sand, sand mining machinery equipment tools, are generally electric migration type or uses diesel-mechanical power. The floating body adopts an assembled box structure, equipped with a digging device, screening device, lifting device, transmission device, etc. The power device drives the bucket to work, the stone is filtered out by the conveyor belt, and the sand is transmitted to the designated place by the conveyor belt.

Bucket dredging ship is suitable for abundant sand resources or stone working conditions, mainly suitable for sand fields, rivers, reservoirs, docks, and coastal sand mining operations. A dredging ship is composed of chain buckets, hull, frame, bucket chain, transmission system, deceleration system, power system, separation system, etc.

Bucket dredging ships could produce from dozens of cubic to hundreds of cubic sand. Its digging depth is generally not more than 30 meters. The conveying distance is generally 20-30 meters, with a longer distance around 50 meters. The cost can range from tens of thousands to millions.

Advantages and Disadvantages

Pumping Sand Dredger

Advantages

Efficient Sand Extraction: Pumping sand dredgers offer high efficiency in sand extraction, which can result in significant cost savings. They can extract large volumes of sand quickly, reducing the time and resources required for the project.

Cost-Effective Operation: Pumping sand dredgers are designed to optimize fuel consumption and operational costs. They are equipped with efficient engines and hydraulic systems, maximizing the output while minimizing fuel consumption.

Versatility in Project Size: Pumping sand dredgers are available in various sizes and capacities, allowing them to be used for both small-scale and large-scale sand extraction projects. This versatility ensures that the equipment can be tailored to the specific needs and budget of the project.

Reduced Labor Costs: The automated and advanced features of pumping sand dredgers minimize the need for manual labor. This reduces labor costs and increases overall operational efficiency.

Long-Term Cost Savings: Investing in a pumping sand dredger can provide long-term cost savings for organizations regularly engaged in sand extraction projects. Instead of relying on external contractors, having in-house dredging equipment can lead to significant cost reductions over time.

Disadvantages

It is not suitable for most work environments with high stone content and less sand.

Bucket Dredging Ships

Advantages

It can dig up most of the stone and sand for the plentiful stone environment. Dredging ships is very convenient in this situation.

It can separate sand and stones on the ship through screening equipment, instead of being separated onshore. The separated stone and sand could be transported to their destination by the pulley.

Disadvantages

Dredging sand could only transport a short distance, usually dozens of meters, operating around the shore. Because the conveyor belt is limited in the conveying distance for generally 20-30 meters, slightly larger can transport 50 meters far, the belt machine can not send the sand to the designated place if the dredging place is far from the shore. At this time, using dredging sand is not very good.

The cost of dredging sand is higher than the cost of pumping sand. At the same output and the depth of digging sand, the price of dredging sand is far greater than the price of pumping ships. With the same output of 100 cubic meters and a depth of about 20 meters, the price of dredging ships may be 600,000, but the price of pumping ships may only be about 150,000.

How to Choose?

When comparing pumping sand dredgers and bucket dredging ships, it is important to consider their suitability for different types of operations. Bucket dredging ships excel in handling operations involving a larger proportion of stones. But the dredger hull is very big, and the cost is higher.

On the other hand, pumping sand dredgers are more suitable for operations where the presence of stones is limited. These dredgers are specifically designed for efficient sand extraction, with the capability to pump large volumes of sand with ease. They are highly effective in areas with sandy or fine-grained sediments, making them ideal for projects focused primarily on sand extraction. Additionally, pumping sand dredgers can discharge sand for longer distances, providing flexibility in the disposal or relocation of the dredged material.

In terms of economics, pumping sand dredgers are generally considered more economical compared to bucket chain dredgers. Pumping sand dredgers often have lower initial costs, lower fuel consumption, and reduced manpower requirements. These factors contribute to overall cost savings, particularly for projects with a focus on sand extraction where the use of a pumping sand dredger is more efficient and cost-effective.