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Hard Rock Miners Dictionary
Author: Jack De La Vergne
- Gold mining until Justinian’s flea »
December 2, 2008
- Make tough mining decisions by watching grand opera, Don Carlo incarnate »
December 1, 2008
- Clinton, Guistra, and the drying up of mining charity & corporate social responsibility »
December 1, 2008
- Weekend reading on uranium mining and groundwater »
November 29, 2008
- The trouble with Teck »
November 27, 2008
- The Needys »
November 26, 2008
- Relfections on cuts in mining and elsewhere »
November 25, 2008
- Conspiracy »
November 25, 2008
- more blogs »
Mining Field: Crushers and Rockbreakers
Area: Crusher Selection (Rule #486)
Impact crushers (rotary or hammer mills) have the capacity for high reduction ratios (up to 40:1), but are rarely applied to hard rock mines. Since they depend on high velocities for crushing, wear is greater than for jaw or gyratory crushers. Hence, they should not be used in hard rock mines that normally have ores containing more than 15% silica (or any ores that are abrasive).
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- Iron ore miner Fortescue stock surges on bid rumours »
December 1, 2008
- Mohr: Potash, coking coal at record levels, spot uranium prices reverse decline »
December 1, 2008
- Chinese Province to buy 1 million tons of base metals to help struggling smelters »
December 1, 2008
- Crystallex cites treaty breach in dispute letter filed over Las Cristinas gold mine »
December 1, 2008
- After Rio: BHP's Kloppers can now focus on fallout from metals markets collapse »
December 1, 2008
- Mongolian Parliament considering draft mining law changes »
December 1, 2008
- Xstrata, Merafe suspend more ferrochrome output »
December 1, 2008
- J.P. Morgan urges investors to buy gold for the holidays »
December 1, 2008
- Australian analyst positive on gold, lists ASX gold juniors and mid-tier companies' progress »
December 1, 2008
- more news »
- Lonmin puts number on job losses »
December 1, 2008
- Xstrata-Merafe responds to weak market »
December 1, 2008
- Traders lift the odds against BHP, Rio »
December 1, 2008
- Xstrata suspends furnaces »
December 1, 2008
- Mining Firms Ordered to Continue Cleanup »
December 1, 2008
- Lonmin:1 500 jobs could be lost »
December 1, 2008
- Stocks fall on mining firms, rand weakens »
December 1, 2008
- 1500 jobs could be lost: Lonmin »
December 1, 2008
- more news »
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Safety Supervisor »
Canada | December 2, 2008
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Project Mechanical Engineer »
South Africa | December 2, 2008
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Training Lead - Customer Service Relocation (CSR) Project »
Canada | December 2, 2008
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Retail Procurement Manager »
Canada | December 2, 2008
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Management Systems (MMS) Focal Point, Edmonton Region, AB »
Canada | December 2, 2008
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Control Analyst - Oil Sands »
Canada | December 2, 2008
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Administrative Assistant »
Canada | December 2, 2008
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Reliability Mechanical Engineer »
Canada | December 2, 2008
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Engineer-In-Training - Major Projects »
Canada | December 2, 2008
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Process Engineer »
Canada | December 1, 2008
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Geostats 2008 - 8th International Geostatistics Congress »
Chile | December 1, 2008 - December 5, 2008
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Palm Beach Resource Expo »
USA | December 7, 2008 - December 8, 2008
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MOLTEN 2009 - VIII International Conference on Molten Slags, Fluxes & Salts »
Chile | January 18, 2009 - January 21, 2009
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2009 Vancouver Resource Investment Conference »
Canada | January 25, 2009 - January 26, 2009
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Mining Indaba 2009 »
South Africa | February 9, 2009 - February 12, 2009
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Indian Steel 2009 »
India | February 10, 2009 - February 12, 2009
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2009 Phoenix Resource Investment Conference »
USA | February 21, 2009 - February 22, 2009
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7th International Industrial Minerals Symposium and Exhibition »
Turkey | February 25, 2009 - February 27, 2009
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Orebody Modelling and Strategic Mine Planning 2009 »
Australia | March 16, 2009 - March 17, 2009
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2009 Calgary Resource Investment Conference »
Canada | April 4, 2009 - April 5, 2009
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Sustainability through Resource Conservation and Recycling (SRCR) 09 »
South Africa | April 4, 2009 - April 5, 2009
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Treatment of Mining Residues Containing Toxic Minor Metals 09 »
South Africa | April 8, 2009 - April 9, 2009
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Project Evaluation Conference 2009 »
Australia | April 21, 2009 - April 22, 2009
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2009 CIM Conference and Exhibition »
Canada | May 10, 2009 - May 13, 2009
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ALTA 2009 Nickel-Cobalt, Copper & Uranium Conference »
Australia | May 25, 2009 - May 30, 2009
- more events »
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