New video：Guide to Gravity Separators in Mineral Processing

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In the world of mineral processing, gravity separators play a crucial role in separating valuable minerals from their ore. These machines leverage the difference in specific gravity between minerals and waste material to achieve efficient separation. In this article, we’ll delve into the four primary types of gravity separators commonly used in the industry: shaking tables, centrifugal concentrators, spiral chutes, and jig machines.

Shaking Table

The shaking table is a fine-grained gravity separator often used as the final stage in the concentration process. It’s characterized by its unique oscillatory motion, which causes the particles to move across the table surface. The heavier particles settle at the bottom, while the lighter ones are washed away. Key features of shaking tables include:

  • Feeding size: 0-2mm
  • Capacity: 10 tpd
  • Application: Final stage concentration

Centrifugal Concentrator

Centrifugal concentrators are rough gravity separators designed for larger feed sizes. They utilize centrifugal force to separate particles based on their specific gravity. These machines are commonly used in gold processing to recover coarse free gold. Features include:

  • Feeding size: 0-6mm
  • Capacity: Higher than shaking tables
  • Application: Gold processing, rough gravity separation

Spiral Chute

Spiral chutes are another type of rough gravity separator, but they operate without the need for external power. The particles are fed into a spiraling channel, where their movement is influenced by gravity and centrifugal forces. Spiral chutes are widely used in various mineral processing applications, including:

  • Feeding size: Smaller than centrifugal concentrators
  • Power: No external power required
  • Application: Chrome, tin, zircon sand, gold, etc.

Jig Machine

Jig machines are versatile rough gravity separators capable of handling larger feed sizes and a wider range of particle sizes. They use a pulsating water flow to separate minerals based on their specific gravity. Jig machines are commonly employed in the processing of various minerals, such as:

  • Feeding size: < 30mm
  • Capacity: Larger than other gravity separators
  • Application: Gold, chrome, tin, tungsten, lead, zinc, manganese, diamond ore, etc.

Conclusion

Gravity separators are essential tools in the mineral processing industry, enabling efficient separation of valuable minerals. By understanding the characteristics and applications of shaking tables, centrifugal concentrators, spiral chutes, and jig machines, you can select the most suitable equipment for your specific needs.

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