Mining Industry

As a leading specialist in bulk materials handling, DemcoTECH Engineering offers the mining industry extensive engineering design capability, state-of-the art technologies and an innate understanding of remote mining sites. Supplying turnkey packages from run-of-mine (ROM) tip to ship loading equipment, DemcoTECH technologies include all conveyor options, stockyard equipment, rapid train and truck loading systems loading systems and shiploaders.

Commodity: Bauxite; Contract Type: Design, Engineering, Fabrication & Supply

DemcoTECH Engineering delivered a fast track contract, awarded by GINMIN, for the materials handling system to process, stockpile and export run-of-mine product at a bauxite project near Georgetown in Guyana, South America. Within seven months of the purchase order being placed, the scope of work had been completed and the equipment containerised for shipping from the Port of Durban in South Africa. The system comprises five conveyors with capacities of up to 600 tph on 900 mm wide belts. Read more …

Commodity: ROM Gold Ore; Contract Type: Lump Sum Turnkey excluding erection

DemcoTECH Engineering was contracted by GRD MInproc to supply a conveyor system to Syama Gold Mine in Mali, West Africa. The turnkey contract covered the supply of five DemcoTech-designed 500 tph conveyors with belt widths of 900 and 1,650 mm. The conveyors transport run-of-mine (ROM) gold ore in up to 400 mm lump sizes from the mine to the gold processing plant. The conveyors were manufactured in South Africa, with the client responsible for logistics to Mali and erection. Read more …

Commodity: Diamonds; Contract Type: EPCM

DemcoTECH Engineering designed and constructed a system to dispose of between 3 to 4 Mtpa of dry tailings. The system had to be re-routable, extendable and capable of withstanding the extreme weather conditions and mountainous terrain of Lesotho. The head/drive pulley of the existing conveyor was elevated above ground level with a discharge chute discharging material onto the tail end of the new DemcoTECH 320 m long extendable conveyor. The layout ensures that tailings may be routed to two discharge points. Read more …

Commodity: Diamonds; Contract Type: Design, Engineering, Procurement, Erection & Commissioning

Demcotech’ Engineering’s contract to supply the tailings disposal system was part of the establishment of a second diamond treatment plant at Letseng Mine. The project included a conveyor with fixed tripper and multiple discharge points, two 1 km long tail-driven downhill extendable conveyors with a rail-mounted tripper and 20 m boom spreader, and three transfer houses. The system was required to operate at ambient temperatures ranging from +35 °C to – 20 °C, due to the fact that the Letseng operation is the highest diamond mine in the world. Read more …

Commodity: Iron Ore; Contract Type: Turnkey, including installing tripper during plant shutdown

The DRS Optimisation Project had the objective of assisting in achieving an annual production of 12 Mtpa from Kumba Resources’ Sishen Iron Ore Mine by optimising the performance of the DRS downstream handling facilities. The project covered project initiation through to handover of the 4,250 tph redesigned tripper car, which operates at a speed of 0.25 m/s, feeding a 2.25 m/s conveyor. DemcoTECH also provided a new belt for the system, with both the tripper car and belt installed during a 7-day shutdown. Read more …

Commodity: Iron Ore; Contract Type: Supply & Install

DemcoTECH Engineering fabricated a shuttle conveyor for Kumba Iron Ore Mine, Kathu, based upon a design provided by the client. The shuttle conveyor was fully assembled in the fabrication shop and then transported to site in 4 large sections. The previous shuttle conveyor had to be disassembled and the new one installed and commissioned at a height of about 28 m during a 7 day plant outage. The removal of the existing shuttle conveyor was successfully completed within the client’s targeted 7-day shutdown. This required work to be carried out 24/7, an activity made even more challenging by the fact that the shuttle conveyor was mounted on special rails at a height of 24 m.

Commodity: Gold; Contract Type: Design & Supply

DemcoTECH Engineering designed a 4.5 km pipe conveyor for Harmony Gold Mining Company in Papua New Guinea to transport gold ore though pristine jungle, providing an economical as well as an environmentally friendly solution. The pipe conveyor was required to have multiple curves given the jungle environment, as well as elevated gantries to allow animals to pass underneath. The 3 000 tph pipe conveyor has a 350 mm diameter pipe and has 3 x 285 kW drives.

Commodity: Titanium Ore; Contract Type: Design, Manufacture & Supply

Dovecote Engineering supplied Kenmare Moma Minerals Processing Limited with an AeroConveyor™ belt conveyor and tail-end combination hopper to replace an existing chain conveyor at the MOMA plant in Mozambique. The scope included repurposing the existing AeroConveyor™.  With a conveying distance of approximately 75 m up an inclination of 15 degrees, the conveyors have a conveying rate of a maximum of 9.0 tph, with instantaneous surges not exceeding 10.0 tph. They can be re-started fully-loaded in the event of a trip.