Mining giant Vale Inco said Thursday it will shut down production at the massive Voisey's Bay nickel mine in Labrador next summer, in response to a sudden downturn in the global marketplace.read more »
Copper futures prices settled at their downside limit on the Shanghai Futures Exchange Thursday on the back of heavy selling activity amid market concern over declining consumption in a slowing economy.read more »
The Bush dynasty thankfully lasted only a decade or so—although their new EPA rule about mountaintop mining may last forever, etched in a new topography.read more »
The eStore now has two books and DVDs on heavy equipment. The books are "The Earthmover Encyclopedia" and "Bucyrus Construction & Mining Machines". The DVDs show massive earthmoving machines at the Belle Ayr and Black Thunder Mines.read more »
Bank of America is to phase out lending to Appalachia’s mountaintop miners in a move likely to be followed by other financial institution, and which will be praised by environmental groups.
The predicament for mining house OZ Minerals now has stockbroking circles and business media proffering a series of scenarios for what was the third ranked Australian mining house, with few offering any joy to shareholders in what is currently a stalled debt re-financing.
The world's largest iron ore miner is continuing to cut global budgets with Wednesday's focus on taking the budget axe to Vale Inco Canadian mines and projects.
The global mining industry must forget about recent highs in resource prices, MacKenzie Investments Frederick Sturm advises, because “they will not be seen for years.” However, gold may be the exception.
Chile's Antofagasta Minerals has completed construction of a $600 million tailings dam at its Los Pelambres copper mine, allowing it to extend the mine's life.
Mining Field: Ventilation and Air ConditioningArea: General (Rule#330)
A factor of 100 cfm per ore-ton mined per day can be used to determine preliminary ventilation quantity requirements for most underground mining methods. Hot mines using ventilation air for cooling and mines with heavy diesel equipment usage require more air. Uranium mines require significantly higher ventilation quantities, up to 500 cfm per ton per day. Block cave and large-scale room and pillar mining operations require significantly lower ventilation quantities, in the range of 20 to 40 cfm per ton per day for preliminary calculations.
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