Dewatering Screen
For aggregate production, mining, sand treatment, and recycling applications, well-separated, clean, and efficiently dewatered materials are of utmost significance to quality control and efficient running. Three key machines have a fundamental role to play in achieving this: the Bucket Washer, the Dewaterer, and the Classificator. We integrate these solutions into highly efficient systems tailored to different industries.
At Polygonmachine,. In this blog, we discuss each piece of equipment, their use, advantage, and how they benefit from complementing each other in material processing plants.
What is a Bucket Washer?
Bucket Washer is a piece of equipment employed to wash coarse and fine materials by agitating them in water with an agitating tool like revolving buckets or paddles. It is primarily used for:
Removal of clays, silts, and other impurities from aggregates
Washing sand and gravel to produce clean construction material
Material preparation for further classification and dewatering
Working Principle:
Equipment is usually a series of buckets on a spinning shaft. Material is placed into a water tank where it is picked up by the buckets. As the buckets rotate, they agitate the material so water can flush out unwanted fines, clays, or organics. Clean material is spouted onto a dewatering screen or conveyor.
Advantages:
Effective in the removal of excess materials like silt and clay
Soft washing action to avoid material deterioration
Suitable for large material sizes
Simple maintenance and operation
What is a Dewaterer?
A Dewaterer is a machine which is used to remove excess water in the washed material in a manner that the end product will have low moisture content. It is typically used after washing processes.
Working Principle:
Dewaterers utilize high-frequency vibration and mild upward slope to allow separation of water from solids. Water is drained out through the screen media as the material moves upward and discharges with much lower moisture content.
Advantages:
Reduces moisture content to as low as 8–15%
Produces stackable and shippable material
Reduces stockpile drainage and water loss
Helps in meeting product specifications faster
What is a Classificator?
A Classificator (also referred to as a Sand Classifier or Screw Classifier) sorts materials by size and/or density. They are usually utilized to recover fine sand particles lost during washing and to sort material into various grades.
Working Principle:
Material is blended with water and fed into a tank where the screw or raking system gradually transports the solids up the slope and allows overflows of the lighter material and silt. The heavier, wanted particles are trapped and discharged.
Advantages:
Recovers valuable fine material
Improves quality of overall sand product
Decreases waste sent to settling ponds
Adjustable control for wide range of material gradations
How Bucket Washer, Dewaterer, and Classificator Work Together
When combined together, these machines create a very efficient material processing line that includes:
Bucket Washer: Cleans raw material by flushing out impurities like clay and silt.
Classificator: Classifies and recovers fine particles in a best particle size distribution.
Dewaterer: Finishes off the process by drying the material to a satisfactory level of moisture, making the material transportable, stockpilable, or available for further processing.
Integration yields:
Better product quality
Higher recovery rates
Lower operational costs
Environmental savings due to a decrease in the use of water
Sand Washing Machine
In a typical sand and gravel processing plant:
Raw material with impurities is first treated using a Bucket Washer.
Cleaned material and slurry are transferred to a Classificator for sorting useful fine sands.
Sorted material is then supplied to a Dewaterer to drain excess water.
The end product is a dry, clean, and well-graded aggregate for concrete-making or other applications.
Why Choose Polygonmachine?
At Polygonmachine, we design and manufacture custom washing, dewatering, and classification solutions to suit your specific needs. Our products feature:
Long-life durable construction
Easy install modular constructions
Low operating and maintenance costs
High efficiency and low water consumption
We help you achieve better material quality, profitability, and more sustainable operation.
Sludge Dewatering Equipment
Bucket Washers, Dewaterers, and Classificators are key machines in effective material cleaning, separation, and dewatering across various industries. Used together in harmony, they provide outstanding performance in quality, efficiency, and sustainability. Rely on Polygonmachine for end-to-end, reliable, and innovative material processing solutions.