Mineral Technologies


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Gravity Separation Technology

logo-mdMineral Technologies is the world leader in mineral separation spiral technology.

We design, manufacture and supply the MD range of gravity separation spirals, shaking tables, slurry distribution and laundering systems.

Our Australian based head office houses the world's largest spiral manufacturing facility and produces over 6,000 starts annually. In 2010/11, we will manufacture HC33 and WW6 spirals for Arcelor Mittal's Mont Wright mining operations in Canada to deliver the largest single spiral order in our history. To date we have commissioned over 50,000 spirals worldwide.

 

Gravity Separation Spirals

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Features

  • Replaceable modular cast polyurethane feed box for positive feedline connection and longer spiral service life
  • Splitter configuration designed for each application
  • Concentrate diverter to obtain the highest concentrate product grade
  • Repulping devices to further enhance recovery and grade of product
  • Cast polyurethane product collector box ensuring long life and nonsplash collection
  • Integrated engaged launder system
  • Accurate top or bottom entry feed distribution systems for improved recoveries
  • Simplicity of process circuits for reduced capital cost
  • Available with or without washwater

Benefits

  • Spiral configurations in single, twin, triple and quad troughs per column to suit capacity requirements
  • Spiral banks up to 48 starts to maximise capacity and minimise floor space requirements
  • Low capital cost installations
  • Minimal maintenance requirements
  • Low operation cost and long operating life
  • Consistent separation efficiency with minimal operator attention
  • Comprehensive process engineering support

Applications

  • Rutile, ilmenite and zircon concentration
  • Iron ore, chromite and manganese beneficiation
  • Tin, Tantalum and tungsten ore concentration
  • Gold, native copper and base metal recovery
  • Silica sands processing and pumice sand separation
  • Titano-magnetite concentration
  • Garnet, kyanite, sillimanite and andalusite recovery.
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MD Gravity Separation Spirals Range

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MG Series Used for feed material containing up to 40% heavy mineral
HG Series Used for high grade feed material generally from 20-90% heavy mineral
VHG Series Used in the final upgrading of very high grade (plus 90% HM) feeds
FM Series The fine mineral spiral series is used for fine feed with particles in the range of 30-150 microns
WW Series Utilises wash water addition for enhanced grade control in specific applications (i.e. iron ore, mineral sand)
HC Series These super-high capacity spirals have been designed specifically for more economical and compact high tonnage plants. The facility to add wash-water can be added on some models
LD Series Used for fine coal beneficiation