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Our underwater mineral extraction technology increases the viable yield of submerged inland mines.

The equipment is suitable for soft / medium and up to hard strength cuttable inland ore deposits below the water table. A submerged remotely operated mineral extraction machine is used to crush and pump the ore as a slurry to the surface where it is dewatered. The water is returned to the pit maintaining the pit water level. The dewatered ore is delivered at typically minus 50mm in size, bypassing primary crushing circuits. Applications include abandoned open pit mines, extensions of existing mines and new deposits where mining has not taken place previously due to hydrological or other environmental constraints on conventional mining.

Vamos

ENVIRONMENTAL & INFRASTRUCTURE BENEFITS

  • ENVIRONMENTAL LICENSE AND MINING PERMIT ALREADY IN PLACE, ONLY SLIGHT MODIFICATIONS REQUIRED.
  • TRANSPORTATION, POWER AND COMMUNICATION INFRASTRUCTURE ALREADY IN PLACE.
  • MINERAL PROCESSING FACILITIES ALREADY IN PLACE.
  • EXPENSIVE TUNNELLING, TRUNK ROADS AND OTHER UNDERGROUND SYSTEMS NOT REQUIRED.
  • MASSIVE REDUCTION IN HYDROLOGICAL AND MINE WATER MANAGEMENT COSTS.

Open Cast Mine Diagram

BENEFITS OVER CONVENTIONAL OPEN PIT & UNDERGROUND MINING

  • STEEPER PIT SLOPES AVAILABLE DUE TO FLOODING OF THE PIT - ULTRA LOW STRIPPING RATIO
  • NO PEOPLE IN DANGER IN THE PIT
  • BENEFITS STEEPER PIT SLOPES AVAILABLE DUE TO FLOODING OF THE PIT - ULTRA LOW STRIPPING RATIO NO PEOPLE IN DANGER IN THE PIT NO BLASTING NOISE, GROUND VIBRATION, DUST OR FUME NUISANCE
  • NO DEWATERING COSTS

LAUNCH AND RECOVERY BENEFITS

  • COMPARED TO SUBSEA MINER EXTRACTION, MORE BASIC PIT-WALL LARS CAN BE EMPLOYED (NO HEAVE COMPENSATION REQUIRED)
  • INEXPENSIVE, RELATIVELY DUMB BARGE REQUIRED AS OPPOSED TO EXPENSIVE, SEA-GOING VESSELS
  • AVOIDANCE OF HEAVY FUEL OIL USE FOR VESSEL POWER

SPEAK WITH ONE OF OUR EXPERTS

Ian Maskell

Ian Maskell, Principal Engineer - Minerals Technology & Business Development

ian.maskell@smd.co.uk +44 (0) 7580504822