A Sand Washing and Screening Plant is an industrial facility designed to remove impurities (clay, dust, organic residues) from natural or crushed sand and classify it into specific grain sizes. These plants ensure high-quality sand production for construction and mining sectors.

Purpose:

  • Washing: Eliminates contaminants using water and mechanical agitation.

  • Screening: Separates sand into granular sizes (fine, medium, coarse) via vibrating screens.

  • Dewatering: Removes excess moisture using hydrocyclones or conveyor belts.

Operation Principle:

  1. Feeding: Raw sand is fed into the plant via a hopper or bucket.

  2. Washing Unit: Sand is mixed with water in log washers or screw classifiers.

  3. Screening: Vibrating screens sort sand into sizes (e.g., 2-4 mm).

  4. Water Recycling: Wastewater is treated in sedimentation tanks for reuse.

  5. Storage: Clean sand is stored in stockpiles or silos.

Applications:

  • Construction: Concrete, asphalt, and plaster production.

  • Glass Industry: High-purity silica sand.

  • Soil Remediation: Enhancing drainage in agricultural fields.

  • Landscaping: Decorative sand for gardens and parks.