Russian mines take delivery of new ventilation fans from GIA
Published 2011-03-23 00:00:00 | Updated 2011-03-23 14:16:02
New deliveries of the latest generation of Swedvent underground ventilation fans and ducting systems from GIA Industries have been installed in six Russian mines.
The latest generation of Swedvent underground ventilation fans and ducting systems from GIA Industries are being installed in six Russian mines including the Apatit and Olcon mines in Murmansk; the Mayskoe mine in Eastern Russia; Alrosa mine in Udachnaya; and the Magadan Lunnoe and Ducat silver mines.
Swedvent fans have also been delivered to Portugal’s Minas Da Panasquira tin-tungsten operation.
Four 2AVH224 fan systems have been delivered to the Apatit mine, each delivering 145m³/s through the shaft of Russia’s largest phosphate deposits. The fan station has been installed inside a pre-heated building to blow air at not less than +2° into the mine.
A similar fan house and pre-heated building has also been constructed at Olcon,Olenogorsk in Murmansk housing four Swedvent 2AVH224 fans.
Highland Gold’s Mayskoe Mine is one of the country’s largest undeveloped gold deposits. Two AVH180 fan systems delivering 130m³/s were delivered in September 2010 for the mines underground operation.
Two AVH160 fan systems have been ordered by the Magadan Lunoe underground mine in North East Russia’s Omsukchan district.
A further two AVH224’, each delivering 104m³/s have also been delivered to Magadan’s Duct silver mine. Ducat is considered to have the largest silver deposit in Russia and the third in the world in terms of silver reserves and production volume.
Meanwhile at the Alrosa Udachnaya mine, a 3AVH125 fan with a duct diameter of 1400mm has been installed at the portal during tunnelling of the 1.8km shaft.
Recent introduction
The recently introduced new generation of Swedvent fans feature improved silencer design to provide noise reductions of at least 3 dB(A) for the full range of fan motors rated between 10 – 500kW to meet 75 – 85 dB(A) at 7m. The improved sound damping has been achieved with a specially designed silencer filled with processed mineral wool to reduce high frequency sounds.
The ventilation system features advanced impeller design incorporating a large hub, short blades and, accurately measured spacing between the blades to give the fan an enhanced ability to counteract high pressure systems.
The dynamically balanced impeller rotates in purpose - designed guide vanes to eliminate turbulence.
Individually adjustable aluminium blades allow the same fan to be used for a number of different tunnel conditions by adjusting the blade angle. For example, a 1250 mm dia fan can be set to deliver 16m³/s – 44m³/s.
The range of Swedvent fans is available with 630mm - 2240mm diameters and 1.5m³/s – 200m³/s capacities.
The fans are built in a rugged anti-corrosion treated design to withstand aggressive environments. The GIA Swedvent range of fans are particularly suited to long tunnels allowing two or more fans to be installed in series offering increased power to counteract the possible high pressures in the tunnel ducting.
STOP PRESS: Norway’s Rana Gruber iron ore mine has installed 10 AVH63 fan units, each delivering 8m³/s to the mines underground drift face; as part of exopansion plans to increase output to 3Mt/year.
Issued on behalf of Gia Industri AB by Joem Promotions.
For further details please contact
John Hooper
Joem Promotions Ltd
(t) 44 1304 368688
E mail john.hooper@joempr.demon.co.uk
