A gravel crushing plant is an industrial facility designed to mechanically process large rocks or stones into smaller, specific-sized aggregates (gravel or crushed stone). These plants supply materials essential for construction projects, such as road bases, concrete production, railway ballast, and drainage systems.

Process and Machinery:

  1. Crushing Stages:

    • Primary Crushing: Jaw crushers or impact crushers break down large rocks (up to 1 meter in diameter) into 10-30 cm pieces.

    • Secondary Crushing: Cone crushers or vertical shaft impactors reduce the material to 2-5 cm.

    • Tertiary Crushing: Fine aggregates (0-5 mm) are produced using grinders or specialized crushers.

  2. Screening: Vibrating screens sort the crushed material into sizes (fine, medium, coarse).

  3. Transport and Storage: Conveyor belts transfer aggregates to stockpiles for quality control and distribution.

Environmental Measures:

  • Water spray systems and bag filters to suppress dust.

  • Noise barriers and enclosed machinery for sound reduction.

  • Recycling of excess materials and waste management protocols.

Applications:

  • Asphalt and concrete mixtures.

  • Foundation and sub-base layers for roads.

  • Landscaping and erosion control.