mining tunnelling auxiliary

Jan 01 2011 · The EF auxiliary ventilation system presents lower dust concentration in the 6 first metres of the roadways as a result of the higher airflow velocities in that zone From the face to the crosssection located 1 m from it there is a considerable increase in airflow velocity which leads to by means of the displacement mechanism an important initial drop in dust concentration

Hubbell Industrial Controls offers a variety of durable products for the mining and tunneling industry DC Contactors Hubbells DC Contactors are in great demand by the mining industry needing reliable solidstate adjustable speed drives and uninterruptible power supplies

Mining Tunnelling Auxiliary Punjab Nvbdcp About Down Under MiningDownunder Mining Pty Ltd is a specialist supplier to the mining construction and tunnelling industries The company was founded in 1997 and is currently based in Domining tunnelling auxiliary Read More Ore Dressing Ball Mill Screening Excavations Ore Dressing PlantFTM Machinery

Auxiliary services Mining tunneling such as Ramps Drives Galleries Cross Cuts SubLevels Bypass Windows Cross Overs Refuge Chamber etc

Tagging Tracking – PBE Group electronic tagging system is used for the tracking of personnel vehicles and assets in mining tunnelling and construction environments The solution uses multiple technologies increases situational awareness minimising accident response times whilst promoting an overall safer workplace

J Toraño et alTunnelling and Underground Space Technology 26 2011 201–210 203 Auxiliary ventilation in mining roadways driven with roadheaders Validated CFD modelling of dust behaviour

AuxilIary equipment AMV Stationary Cable drum AMV stationary cable drum w 500m cable is constructed to deliver different electric supply and voltage from a power supply plant to a drill rig or other equipment for mining or tunnel work in a construction period The equipment is not meant to be a permanent power connection

Coal salt potash and trona are often mined without the use of explosives or mined after undercutting the face to reduce the consumption of explosives In addition to the operations of the

Area of an airway Average width multiplied by average height of airway expressed in square feet Auger A rotary drill that uses a screw device to penetrate break and then transport the drilled material coal Auxiliary operations All activities supportive of but not contributing directly to mining