Cheap hydro power is shielding Canada from job cuts as aluminum giants Alcoa (NYSE: AA) and Rio Tinto Alcan (NYSE: RIO) look to chop supply in the wake of dwindling global demand and falling prices. read more »
Goldcorp Inc said on Thursday that it has matched its 2008 gold production forecast and plans for a 50-percent jump in output over the next five years.read more »
Teck Cominco Ltd. said Thursday it is cutting roughly 1,400 jobs, or 13 per cent of its global workforce, as it moves to cut its costs and improve its competitiveness.read more »
Read about the 26th Annual Mineral Exploration Roundup in Vancouver and the Prospectors and Developers Association of Canada (PDAC) Annual Convention in Toronto, both happening this month, in MINING.com Magazine. read more »
BHP Billiton, the world’s biggest mining company, shipped 5% more iron ore from Australia in December than in November, when exports hit a nine-month low on plunging demand from China. read more »
Africa InfoMine is the latest in a series of region specific editions. It provides focused, in-depth information and functionality encompassing most aspects of mining and mineral exploration activities in Africa.read more »
2009 is here, and we are offering a free Worldwide Mining Events Calendar. This large, wall-mountable calendar includes all major mining conferences and events for this year. It is available folded or unfolded.read more »
With most resource projects for junior companies now back on the shelf there was a good sign for the new year with junior company Minemakers Ltd which disclosed today that it had signed a memorandum of understanding to build a 250 kilometre railway line in Australia's Northern Territory.
Mining Field: Mine DewateringArea: Design (Rule#408)
Centrifugal pumps should not operate at a speed exceeding 1,800 RPM (except for temporary or small pumps that may operate at 3,600 RPM). This is because impeller wear is proportional to the 2.5 power of the speed. In other words, half the speed means nearly six times the impeller life.
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