A mobile screening plant is a portable system designed to classify materials like aggregates, ores, recycled debris, or soil by size. Mounted on wheeled or tracked chassis, it offers flexibility for temporary projects or remote locations.

Components

  1. Screening Unit:

    • Vibrating Screen: Separates material into 2–4 sizes (e.g., 0–5 mm, 5–15 mm) via vibration.

    • Multi-Deck Screen: Uses multiple screen layers for simultaneous classification.

    • Trommel Screen: A rotating drum for wet or sticky materials (e.g., soil, compost).

  2. Feeder:

    • Vibrating Feeder: Ensures even material distribution onto the screen.

  3. Conveyors:

    • Belt Conveyors: Transport sorted fractions to stockpiles or trucks.

    • Return Conveyor: Sends oversized material back to crushers (in combined plants).

  4. Power Unit:

    • Diesel Engine: Enables off-grid operation.

    • Hydraulic System: Adjusts screen angle and vibration intensity.

  5. Control Panel:

    • Operators adjust feed rate, screen speed, and monitor performance.

Working Principle

  1. Setup: Transported via truck; tracked models operate on rough terrain.

  2. Feeding: Material is loaded into the feeder using excavators or loaders.

  3. Screening:

    • Vibrating screens sort material through mesh apertures.

    • Trommel screens rotate to separate materials as they tumble.

  4. Classification & Transport:

    • Each fraction is conveyed to separate stockpiles.

    • Oversized material may be sent to crushers via return conveyor.

  5. Storage: Sized products are stored for direct use or sale.

Advantages

  • High Mobility: Transportable by truck, operational within hours.

  • Versatility: Used in aggregates, mining, recycling, and soil processing.

  • Efficiency: Capacities range from 50–500 tons per hour.

  • Low Operating Costs: Energy-efficient compared to fixed plants.

Applications

  • Aggregate Production: Screening natural stone or river gravel.

  • Mining: Pre-concentration size separation of ores.

  • Recycling: Cleaning concrete, asphalt, or demolition waste.

  • Soil Processing: Preparing clean soil for agriculture or construction.

  • Demolition Waste: Separating metal, wood, and concrete.