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BBE completes first two surface main fan station turnkey projects
Ventilation, refrigeration and cooling specialist BBE Projects has successfully commissioned its first two surface main fan station turnkey projects for the South African mining industry.
The first installation, a bifurcated surface main fan station at Anglo Coal’s Zondagsfontein colliery near Ogies in Mpumalanga, has just been commissioned. The contract, awarded in 2008, includes two axial flow Howden fans, each 400 m3/s at 2.6 kPa with 1 600 kW motors, and includes all structural, mechanical and electrical engineering design and specifications, all steel ducting, buildings, fan mechanicals, electric drives, instrumentation and control systems. Noise levels are well below strict design criteria.
The second installation was commissioned at Lonmin Platinum’s Saffy Shaft and included earthworks and civils, building works, ducting and mechanicals, electrical equipment (MV and LV), as well as instrumentation and control for a trifurcated fan station. BBE replaced two temporary fans on the shaft with two permanent centrifugal fans, each 90 m3/s at 5 kPa, and installed ducting that makes provision for a third fan or an emergency diesel standby fan.
“Our mine ventilation and refrigeration activities have equipped us with the capabilities and contracting experience necessary to undertake turnkey fan station projects,” says BBE Projects MD Richard Gundersen. “It’s been a natural progression for us to move into this area.
“Not being affiliated to any particular supplier allows us to offer clients the best combination of equipment with the benefit of having a single engineering company design, install and commission the installation on a turnkey basis. Benefits to the client include one point of contact, improved efficiencies and lower cost.”
BBE’s highly experienced team is also able to offer in-house Computational Fluid Dynamics (CFD) modelling which is used to optimise the aerodynamics of airflow in ducts, drifts, airways and connections to downcast/upcast shafts.