As part of the FEED works relating to the wet harvesting equipment,
These minerals provided a good quality, representative substrate to test the wet harvesting equipment design at a pilot scale as the mineralogy mix is comparable to that expected during commercial operations. The testwork program gathered critical data on the cutting forces required to break the potassium bearing salts under varying cutting depths and speeds.
Importantly, this data has supported the key design parameters that were applied in DFS. IHC will now complete and deliver detailed design drawings for all key areas of the equipment including cutting tools and propulsion, slurry transport systems, hydraulics, electrical and control system, field testing and a fixed cost for supply of the harvesting equipment.
The use of wet harvesting at the
Significantly lower energy consumption to transfer raw potash salts from the evaporation ponds to the processing plant (i.e. raw potash salts will be transferred to the plant via pipeline as a slurry, thereby removing the requirement to truck dry salts);
Reduced labour costs as wet harvesters will be automated;
Increased overall potassium recovery with harvesting of two pre-concentration ponds to recover a portion of the potassium-bearing entrained brine; and
Reduced pond sizes due to harvesting occurring earlier in the evaporation cycle and not having to take ponds off-line for harvesting. Wet harvesting is currently used at the world's largest sulphate of potash operations and IHC is a world leader in the design and manufacture of dredging systems for wet harvesting solutions.
The overall FEED phase for the
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