DFS delivery as Hydraulic Mining content expert. Proposed Hydraulic Mining solution included:
- Water supplied to 4 x HP pumps at approx. 1,200m3/hour
- HP pumps deliver water to 4 x monitors (2 x spare) at 25bar. Each monitor mining 500t/hr
- Mined tailings slurry flows down trench to 4 x pontoon VSPs and is pumped to a trash screen & surge tanks
- Screened slurry is pumped via 3 x slurry pumps 5km to process
GEM Projects specialises in Hydraulic Mining techniques, providing a process that ensures:
- Improved resource utilisation
- Re-use of tailings storage facilities
- Safety, cost and environmental advantages over other methodologies
- Minimal interaction with operations
- Telemetry to monitor tonnages and densities
- Consistent production tonnage and density to client specification
Proven Commodities reclaimed by Hydraulic Mining include:
- Gold – bulk density of 1.63t/m3, particle SG ~2.71t/m3, with sizing P80 @ av. 80µm
- Coal – dry bulk density of 1.5t/m3 with av. sizing of 20-40µm, 30% w/w solids
- Zn/Pb – dry bulk density 1.9t/m3, particle SG 2.8t/m3, P60 45µm, 40-50% w/w solids
- Magnetite – South Africa hydraulically mine magnetite tailings with particle SG of 4.6t/m3 – SG the key when tailing >150µm to avoid pipe blockage.