Dewatering cyclones

Multotec dewatering cyclones are ideal for all solids dewatering, water recovery and slurry densification applications in mineral processing.

We manufacture dewatering cyclones in a complete range of sizes, from very small to large, according to strict quality control standards at our ISO-certified facilities.

Features of Multotec dewatering cyclones:

  • Designed with the Multotec scrolled evolute inlet
  • Excellent wear resistance for abrasive applications
  • High recovery rates of water content
  • Suitable for high-pressure applications up to 3.5 bar (VV cyclone range up to 1.7 bar)

Your local Multotec branch supports your dewatering application with rapid product availability; complete range of cyclone spares, linings and components; and full engineering and aftersales field support.

Our range of dewatering cyclone

Very small diameter dewatering cyclones:

Multotec offers very small diameter polyurethane dewatering cyclones (i.e. 25 mm ID to 75 mm ID cyclones from our FC cyclone range) and 100 mm ID and 165 mm ID polyurethane dewatering cyclones from our VV cyclone range.

Small diameter dewatering cyclones:

For slurry dewatering or water recovery (i.e. high solids yield to the underflow), we recommend our range of small diameter dewatering cyclones that achieve a fine cut-point. A higher-feed pressure can also be accommodated in small diameter dewatering cyclones, which assists in achieving a fine cut-point.

Large diameter dewatering cyclones:

Larger diameter dewatering cyclones may be used in processes where the feed to the cyclone does not contain a high fraction of ultra-fines and / or where solids losses to the overflow are acceptable. In the latter case, where solids report to the overflow, large diameter dewatering cyclones are acceptable when downstream equipment to recover or dispose of these solids exists – such as thickeners or tailings storage facilities.

These cyclones include the high-capacity classification cyclones (HC and HA) and the larger diameter cyclones of the polyurethane cyclones range (VV).

Selecting a dewatering cyclone for your application:

The correct selection of dewatering cyclones for the dewatering process depends on your application. We custom-design our range of dewatering cyclones to suit your application requirements, including:

  • Required underflow slurry density required
  • Solids yield to the underflow
  • Overflow particle size distribution
  • Overflow solids concentration
  • Feed particle size distribution

The most important design aspects of a dewatering cyclone are the cyclone diameter and the spigot diameter. The diameter of the dewatering cyclone will ensure that the correct cut-point is achieved, and the correct spigot diameter will ensure that the design underflow slurry density is achieved.

The scrolled evolute inlet design: the heart of the Multotec cyclone range!

Through extensive testing and simulations, Multotec has proven that the scrolled evolute design has a higher capacity when compared to other inlet configurations.

This design substantially reduces vortex finder wear, thereby reducing operating costs while maximising cyclone efficiency by allowing particles to follow its natural spiral trajectory. The scroll section also allow for natural particle segregation to take place before entering the classification zone.

Enquire now for more information on our range of dewatering cyclones.
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