Sand Washing Machine

What is sand washing machine?

Sand washing machine is a kind of equipment used to wash artificial sand and natural sand, which is widely used in sand and gravel quarries, mines, building materials, transportation, chemical industry, water conservancy and hydropower, concrete mixing station and other industries. It can wash away the impurities covering the surface of sand and gravel and complete the cleaning quickly and efficiently.

Why is sand washed?

Whether it is natural sand or artificial sand after crushing, sand making and other processes, it usually needs to be washed and other work. Some people may wonder why sand washing is necessary.

After a series of crushing and sand making, the stone can become artificial sand with high market demand. However, under normal circumstances, artificial sand will be mixed with some impurities such as slag, dust, etc. If it is not cleaned, it may affect its sales. More seriously, if the quality of artificial sand does not meet the standard of construction sand, it will also affect the quality of the project, so the sand washing process is particularly important.

Therefore, the cleaned artificial sand has less mud content, higher purity and better quality, which can meet the standard of construction sand and bring higher economic value to customers.

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Types of sand washing machines

The common sand screening and washing machines on the market mainly include spiral sand washer and impeller sand washer.

Spiral sand washer

The spiral sand washer is divided into two types: single spiral sand washer and double spiral sand washer. It has the characteristics of low power consumption, high cleaning degree, good sealing structure and good dehydration effect. The spiral sand washing machine has a strong cleaning ability and can effectively clean the sand and gravel with serious mud and impurities. It is often configured in large-scale sand production lines.

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Working process：

The spiral sand washing machine adopts the central structure, the spiral blade is installed on the transmission shaft, and the transmission shaft is driven to rotate by the motor reducer. Under the rotating action of the spiral blade, the separation of mud and sand is realized. In addition, the sand is transported upward through the action of the spiral blade to realize the dehydration of the sand. In the dehydration process, a spray system is added to rinse the material twice, and after the rinse, it is dehydrated again, and the washed sand is discharged from the top of the screw.

Features:

• Bearings are separated from water and materials to avoid premature damage to the machine due to pollution and rust.
• The washed material has less loss and high selection and washing efficiency, which can fully meet the requirements of high-grade materials.
• The service life is relatively long, and there are almost no wearing parts.
• Frequent maintenance is not required, thus significantly reducing costs.

Impeller sand washing machine

Impeller sand washing machine can also be called wheel bucket sand washer, which is often used in sand and gravel fields, mining, building materials, chemical and other industries. Compared with the spiral sand washing machine, its production capacity is not very high, and it is suitable for small and medium-scale sand production lines. It has the characteristics of low cost, good cleaning effect and low power consumption. If the sand is fine, a fine sand recycling machine can be added to reduce the loss of fine sand.

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Working process:

The conveyor sends the sand to be cleaned into the cleaning tank, and the sand rolls together under the drive of the impeller and the blade, and is continuously brought up and then dropped down again. During this process, dirt and impurities from the surface of the sand are removed. Then, after being cleaned by the water in the cleaning tank, the impurities will be taken away by the water flow, and at the same time, the cleaned sand will be discharged with the discharge tank.

Features:

• The transmission bearing device of the impeller is separated from the water and the material, which greatly avoids the phenomenon that the bearing is damaged due to water immersion, and reduces the failure rate of the equipment.
• With less loss of fine sand and stone powder, the washed construction sand grade and fineness can meet the standard requirements.
• Except for the screen, the wheel bucket sand washing machine has almost no wearing parts, which has a long service life, and does not need maintenance for a long time.

How to choose a suitable sand washing machine?

Sand with more mud sand and more impurities will directly affect the quality of sand and gravel aggregates. Sand washing is an important link to improve sand quality and reduce mud content. Experiments have shown that the quality of sand before and after cleaning will change significantly. Therefore, how to choose a suitable aggregate washing machine has become the top priority.

First of all, the cleaning effect of the sand washing machine and the loss of fine sand should be considered. The spiral sand washing machine has greater cleaning strength for materials and more complete cleaning, so the quality of washed sand is higher. However, at the same time, during the cleaning process, the loss of fine sand is relatively serious. Of course, in this case, you can choose to add a fine sand recovery machine to reduce the loss of fine sand.

The structure of the wheel bucket sand washer is relatively simple, and its cleaning strength is relatively weaker than that of the spiral sand washer. However, this also means that it consumes less energy and loses less fine sand during the sand washing process.

If you have strict requirements on sand quality, a spiral sand washer is a more sensible choice.

Second, consider the scale of production. If you want to add a sand washer to the sand making production line, then you need to consider the output of the sand making machine and match a sand washer that is suitable for the output of the sand making machine. If you are washing natural sand, then you need to choose a suitable sand washer according to the hourly or daily output. In comparison, the cleaning process of the spiral sand washer is simpler and the output is higher.

Finally, you also need to consider your budget and maintenance costs. Wheel sand washers are cheaper than spiral sand washers. If you're on a budget, a wheeled sand washer is a great option. No matter what type of sand washing machine, except the screen needs to be replaced in time, the whole is relatively wear-resistant and has a long service life.

If you have any questions about the sand washing machine, please leave us a message, we will reply you as soon as possible!

Technical Parameters