A magnesium crushing and screening plant is a facility where magnesium ore (usually magnesite, dolomite, or magnesium salts) is processed to make it usable. Magnesium is a widely used element in industries such as aviation, automotive, electronics, and chemicals due to its lightweight properties. These plants crush, screen, and sometimes enrich magnesium ore to bring it to suitable sizes and quality for industrial use.

How Does it Work?

  1. Feeding Unit:

    • Magnesium ore (magnesite, dolomite, etc.) extracted from nature is loaded into the feeding hopper.

    • Material from the feeding hopper is transferred to the crusher using a vibrating feeder or scraper. This ensures a smooth flow of material to the crusher.

  2. Crushing Process:

    • Primary Crusher: Material is first sent to the primary crusher (usually a jaw crusher or impact crusher). At this stage, large ore pieces 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. Enrichment (Optional):

    • In some plants, enrichment processes are used to increase the purity of magnesium ore. This is done using methods such as magnetic separation, flotation, or chemical processes.

  5. Storage and Shipment:

    • Sized and enriched material is stored in stockpiles.

    • Material is shipped to industrial facilities or sales points using conveyor belts or trucks.

Working Principle:

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

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

  • Enrichment Equipment: Magnetic separators, flotation cells, or chemical processes are used.

  • Conveyor Belts: Transport materials within the plant.

  • Control Systems: Ensure automatic operation and increase efficiency.

Advantages:

  • High efficiency and low operating costs.

  • Flexibility to produce magnesium ore of different sizes.

  • Provides high-purity material suitable for industrial use.

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