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5 most commonly used sand washing machines: their working principle and characteristics

The sand washing machine is a kind of sand washing equipment used for sand (artificial sand, natural sand), which can make the sand cleaner and higher quality. It is widely used in sand quarries, mines, building materials, transportation, chemicals, water conservancy Concrete mixing station, and other industries. 

 

At present, there are various types of sand washing machines in the domestic market. The most common ones are spiral sand washing machine, wheel sand washing machine, drum sand washing machine, vibration sand washing machine, bucket sand washing machine, etc.

 

So, let’s start with the most familiar ones, the spiral sand washer, and wheel sand washer. 

 

Spiral sand washing machine

spiral sand washer working animation

The spiral sand washing machine uses the buoyancy of water to classify feeding materials. It functioned with the principle that the specific gravity of solid particles is different, so the speed of sedimentation in the liquid is different.

 

The rotor of spiral sand washer adopts a central structure, the spiral blades are installed on the central shaft, and the reducer is connected to the central shaft for work. 

 

The spiral sand washing machine needs to be arranged obliquely while using. The lower part of the sink is surrounded by a three-sided weir to form a sedimentation tank. The screw head is submerged in the sedimentation tank. The screw is driven by the motor through the reducer to continuously rotate, and the cleaning water is fed into the perforated plate at the bottom of the sedimentation tank. 

 

The equipment has three functions in one machine, which are cleaning, dehydration, and classification.

 

Wheel sand washing machine

wheel sand washer working animation

The motor drives the impeller to rotate slowly after deceleration by the V-belt, reducer, and gear. The sand and gravel enter through the feeding trough, roll under the impeller, and grind each other to remove impurities covering the surface of the gravel and destroy the water vapor that covers the sand. Layer to facilitate dehydration. 

 

At the same time, add water to form a strong water flow, timely takeaway impurities and foreign objects with small specific gravity, and discharge them from the overflow tank. The clean sand and gravel are taken away by the blades, and finally, the gravel is poured into the discharge chute from the rotating impeller to complete the cleaning effect of the gravel.

 

Because the transmission part of the wheel sand washing machine is isolated from water and sand, its failure rate is much lower than that of the sand washing equipment commonly used in the current market, which is a good choice to choose.

 

Drum sand washing machine

drum sand washing machine

It is also called a roller stone washing machine. While working, the motor drives the reducer. The large and small gears drive the cleaning cylinder to rotate at a low speed. The aggregate containing mud and stone powder is fed from the feed port and enters the rotating drum. 

 

It is constantly brought up and dropped. The cleaned aggregate is sieved and dewatered at the discharge end and then discharged, and the wastewater containing sludge flows out through the perforated baffle at the discharge or feed end. 

 

Its working process can be summarized as raw material storage, transportation, cleaning, finished material transportation, sewage sedimentation, and reuse. The drum sand washing machine requires a large amount of water while the production volume is also large.

 

Vibration sand washing machine

vibration sand washing machine

This machine is composed of upper eccentric block, circular vibration, motor and other structures. The motor is connected to the screen box to vibrate to work, and then automatically separate and clean. The vibrating sand washing machine is mainly used for the construction of high-standard projects such as highways, railways, bridges, tunnels, etc. 

 

It is special equipment used to clean sand and gravel. It is suitable for the washing of fine-grained and coarse-grained materials, but it is relatively less used in the industry, its output is high, but the price is relatively high.

 

Bucket sand washing machine

bucket sand washer machine

The front end of the bucket sand washing machine is a sand storage tank. When the water is completely immersed in the sand, the water and sand are mixed through the operation of the bucket. 

 

During the mixing process, the sand will be deposited in a larger proportion, and the soil and impurities with a small specific gravity will be taken away by the water flow as wastewater. The sand at the bottom of the water is picked up while the bucket is agitated, and the muddy water is cleaned through the water control hole, and transported out through the conveyor belt to form a hill pile, or into the next stage of sand cleaning machine. 

 

The bucket sand washer has reasonable structure, flexible assembly, high output, and significant water saving.

 

Conclusion

 

In summary, among these 5 types of sand washing equipment, wheel sand washer and spiral sand washer are the most widely used, accounting for about 80%-85% of the market, and both have double-wheel and double-helical structures, which makes the output increased doubly.

Bucket sand washing machine is relatively rare in daily production, but it can also be used as a sand washing equipment.

 

At present, the sand washing machine has become indispensable equipment in sand production, which can make sand cleaner and sell better. 

 

Yet have any questions about sand washing equipment encountered in production? Welcome to leave a message to us, and we would like to help.

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