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The majority of Mineral Sands, Iron Ore and Coal processing plants world-wide rely on gravity separation equipment designed, built and supplied by Mineral Technologies for their survival.  

Coal Spiral Separators

Our LD4 spiral pioneered the use of modern high capacity, light weight, durable spiral separators for fine coal beneficiation.

In 1995 Mineral Technologies released the LD7 spiral, the current industry standard for fine coal beneficiation.  This latest refinement in fine coal treatment includes a number of features specifically requested by the coal industry.  The LD7 spiral offers superior fine gravity separation efficiency and feed handling capacity and continues our tradition of excellence in high capacity coal spirals. 
 

Mineral Spiral Separators

Continuing development of our range of spiral separators for treating heavy mineral containing material has resulted in groups of spirals specialized for each specific duty.

• Low-grade (LG) spirals - to concentrate heavy mineral from slurries containing generally less than 10%HM (e.g. the LG7D spiral)
• Medium-grade (MG) spirals - to concentrate heavy mineral from slurries containing 10-25 %HM (e.g. MG2, MG4B, MG4CF and MG6.2 spirals)
• High-grade (HG) spirals - to further concentrate feed of greater than 25% heavy mineral. Models include the HG7E, HG8E and HG10A
• Wash-water (WW) spirals - utilising additional process (wash) water to maximise the grade of concentrate produced by minimising the recovery of fine, low specific gravity minerals.  Models include the WW6E
• Fine mineral (FM) spirals - FM spirals effectively recover the heavy minerals in slurries of material finer than 150 mm . Models include the FM1
• High Capacity (HC) spiral  - These super-high capacity spirals have been designed specially for more economical and compact plants.  The facility to add wash-water can be added on some models.
  Click here to find out more on fine gravity separation projects recently undertaken by Mineral Technologies
  

If you would like to receive a full product brochure on our coal spirals, fine mineral gravity spirals or other fine gravity separation equipment, please email mineraltechnologies@downerediming.com.