A 100-150 ton per hour gabbro crushing and screening plant is a facility capable of processing 100 to 150 tons of gabbro, a hard and durable volcanic rock, per hour. Gabbro is commonly used in aggregate production, road construction, and the concrete industry. These plants crush and screen gabbro stones to produce aggregate materials of different sizes.

How Does it Work?

  1. Feeding Unit:

    • Gabbro stones are loaded into the feeding hopper.

    • Material from the feeding hopper is transferred to the primary crusher using a vibrating feeder or scraper.

  2. Crushing Process:

    • Primary Crusher: Gabbro stones are sent to the primary crusher (usually a jaw crusher or impact crusher). At this stage, large stones are broken into smaller pieces (approximately 100-200 mm).

    • Secondary Crusher: Material from the primary crusher is sent to the secondary crusher (cone crusher or impact crusher). Here, the material is reduced to smaller sizes (25-60 mm).

    • Tertiary Crusher (Optional): If fine material production is required, a tertiary crusher is used. At this stage, the material is crushed to a range of 5-25 mm.

  3. Screening Process:

    • Crushed material is passed through vibrating screens to separate it into different sizes.

    • Screens classify the material into desired sizes (e.g., 0-5 mm, 5-12 mm, 12-25 mm).

    • Material that does not meet the desired size is sent back for further crushing.

  4. Storage and Shipment:

    • Sized material is stored in stockpiles.

    • Material is shipped to construction sites or sales points using conveyor belts or trucks.

Working Principle:

  • Crushers: Break gabbro stones into smaller pieces. Primary, secondary, and tertiary crushers are used.

  • Screening Machines: Separate materials by size. Vibrating screens are the most commonly used equipment.

  • Conveyor Belts: Transport materials within the plant.

  • Control Systems: Ensure automatic operation and increase efficiency.

Advantages:

  • High efficiency and low operating costs.

  • Ability to process hard materials like gabbro.

  • Flexibility to produce aggregates of different sizes.

  • Mobile plants can be easily set up in different locations.