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FEATURE - Haulage & Loading 2011 |
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Heap Leaching: Extending Applications
Technical program offers insight into future technology as well as hands-on ideas to improve safety and efficiency at surface mines
By Steve Fiscor, Editor-in-Chief
Every two years, Engineering & Mining Journal (E&MJ) and Coal Age combine efforts to produce Haulage & Loading, a technical conference that serves as an engineering forum for surface mining. This year’s event takes place May 16-18, 2011, at the Wigwam Resort in Phoenix, Arizona, USA. The conference consists of 22 presentations grouped into five sessions: Autonomous Mining, Operations & Maintenance, Safety & Compliance, Loading Techniques and Haulage Systems. In addition to the technical program, the conference also offers surface mining engineers and mine managers a change to network..... read more
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FEATURE - Materials Handling |
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Drive Time
New stationary and mobile drive systems introduced at CONEXPO 2011 offer higher performance with improved economy of operation
Held every three years in Las Vegas, Nevada, USA, the CONEXPO-CON/AGG exposition is one of the largest trade shows in the world—this year attracting an estimated 120,000 visitors and 2,000 exhibitors. Traditionally, it’s an event that industry suppliers view as a milestone at which to introduce their newest products and services for the construction and aggregate industries. However, the product overlap between the equipment commonly used in these industries and in various sectors of largescale mining makes CONEXPO a mustsee event for anyone interested in new mechanical technologies. This holds true particularly for new developments in materials handling components and equipment such as the drive systems that transfer power to conveyors, feeders, screens, stackers/reclaimers and other bulk-materials equipment …...
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Endurance Contest: Suppliers Steadily Improve Wear-resistant Materials Lineup
OEMs and end users can pick from an expanding range of products, selection tools and installation techniques
By Russell A. Carter, Managing Editor
At a factory in France, a new hydraulic excavator is assembled, tested and disassembled for shipment to an Australian iron ore producer. A few thousand miles to the west, a drilling jumbo hammers away at a hardrock face underground in Canada’s Sudbury Basin. At a surface mine in the Southwest U.S., a high-speed conveyor dumps thousands of tons of copper ore each day onto a transfer point. And at a nickel mine in Finland, a tweak to the profile of a gyratory crusher’s wear mantle results in a 15% increase in crusher throughput.....
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New Hydraulic Excavator Provides Improved Performance
Caterpillar says its new 90-metric-ton (198,000-lb) 390D L hydraulic excavator, which replaces the 385C L, incorporates a refined design that results in a more productive, durable and efficient machine that can handle jobs in a range of aggregates, coal and hard rock mining applications. Powering the new 390D L is the 18.1-liter (1,104 in3) C18 ACERT diesel engine, rated at 523 net hp (390 kW). Refinements in the C18’s …. read
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Heat Option for Sliding Vane Pumps
Blackmer, a supplier of positive displacement pumps and reciprocating compressor technologies, has upgraded the 4-in. model of its NP Series sliding vane pumps with optional electric heating. The 4-in. model joins the previously upgraded 2.5- and 3-in. models, completing Blackmer’s line of NP Series pumps with this option. The electric heating option may be used in place of jacketed heads in order to provide pump heating for applications…… read
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Bulk Fluids Protection
Donaldson’s new Bulk Filtration product line incorporates technology designed to clean, protect, and polish bulk fuels and lubrication fluids. Incorporated in the new Bulk Filtration line are newly developed media designed to provide high filtration efficiencies in a single pass, including the 4 μm filter that is compatible with all fuels— diesel, bio-diesel, gasoline, ethanol and more. These media utilize new Donaldson Electrostatic Reduction Technology that prevents any electrostatic….
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Flexible Hose Reduces Fitting Requirements
Gates recommends its EFG6K MegaSys six-spiral wire hydraulic hose for high-pressure, high-impulse applications on underground mining equipment, where its superior flexibility reduces the need for bent tube fittings. To lower inventory requirements, the hose is engineered with a 6,000-psi (41,368-kPa) pressure rating in all sizes. An optional MegaTuff super-tough hose cover .……
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Grizzly Paw Increases Blasthole Penetration Rates
Atlas Copco’s Secoroc Grizzly Paw drill bit finished the year by consistently proving out more than two years’ of research and development. Its speed, consistency, and endurance make it the most aggressive bit available for penetrating glacial till and coal overburden. The Grizzly Paw’s design not only provides rapid rates of penetration but also eliminates the need to switch bits after encountering hard rock….
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Flexible Tank Wraps
Powerblanket offers a variety of tank wraps to heat and maintain temperature in large holding tanks. Featuring environmentally friendly, patented GreenHeat Technology, the tank wraps create a barrier of insulated warmth to keep fluids from freezing and viscous materials flowing. The advantage of Powerblanket tank wraps is GreenHeat Technology, a revolutionary heat-spreading system designed to deliver a highly efficient and uniform distribution of heat. The blankets are flexible enough to cover anything from 20-lb propane tanks to 30,000- gal water tanks. They are easily…. read
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New Jaw Crushers
Telsmith recently unveiled two new jaw crusher models: the H3244 Hydra-Jaw, the largest model to date in the Telsmith Hydra-Jaw Series; and the H2238 Hydra- Jaw. Engineered with a true 32-in. (813- mm) gape and a 44-in. (1,118-mm) width, the H3244 is designed to accept larger feed and can be mounted on portable plants or fixed assemblies. The H3244 (and prior Hydra-Jaw models) incorporates the unique Hydra-Jaw toggle, which provides hydraulic tramp iron relief .….
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Compressed-air Tanks Offer Remote User Convenience
U.S.-based Power Tank offers portable air systems for workers who need compressed air in remote locations to power air tools. The 2011 Power Tank series features a new SuperFlow HP250 regulator, four tank sizes and new tank colors. The SuperFlow HP250 regulator features a flow rate of 45 cfm (1.2 m3/min) with maximum outlet pressure of 250 psi (17 bar). This regulator, according to the manufacturer, supplies ample flow and pressure….read
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MAY 4–6, 2011: Arminera, Buenos Aires, Argentina. CAEM; Tel: (54-11) 4313-1652, (54-11) 4313-9331; Fax: (54-11) 4313-9328; E-mail: info@caem.com.ar; Web: www.arminera.com.ar |
MAY 15–18, 2011: Haulage & Loading, Litchfield Park, Arizona, USA. Contact: Tanna Holzer; Tel: 303-283-0640; E-mail: tholzer@mining-media.com; Web: www.mining-media.com |
JUNE 13–17, 2011: Expornor, Antofagasta, Chile. Contact: Industrial Association of Antofagasta; Tel: 56-55-454325; Fax: 56-55-454330; E-mail: exponor@aia.cl; Web: www.exponor.cl |
JUNE 21–23, 2011: Longwall USA, Pittsburgh, Pennsylvania, USA. Contact: Tanna Holzer; Tel: 303-283-0640; E-mail: tholzer@mining-media.com; Web: www.mining-media.com |
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JULY 5–7, 2011: Mining & Engineering Western Australia, Perth Western Australia. Contact: Reed Exhibitions, Luke Griffin; Tel: 02 9422 2339; E-mail: luke.griffin@reedexhibitions.com.au or Peter Thompson; Tel: (02) 9422 2472; E-mail: peter.thompson@reedexhibitions.com.au; Web: www.miningandengineeringwa.com.au |
JULY 6–8, 2011: HydroCopper 2011—6th International Seminar on Copper Hydrometallurgy, Viña del Mar, Chile. Contact: Carolina Barahona, Gecamin Ltd.; Tel: (56-2) 652 15 42; E-mail: carolina.barahona@gecamin.cl; Web: www.hydrocopper.cl |
SEPTEMBER 7–9, 2011: MAPLA 2011—8th International Mining Plant Maintenance Meeting, Antofagasta, Chile. Contact: Carolina Barahona, Gecamin Ltd.; Tel: (56-2) 652 15 42; E-mail: carolina.barahona@gecamin.cl; Web: www.mapla.cl |
SEPTEMBER 21–24, 2011: Mining Indonesia 2011, Kemayoran, Indonesia. Contact: PT Pamerindo Indonesia; Tel: 62 21 316 2001; Fax: 62 21 316 1983/4; E-mail: maysia@pamerindo.com; Web: www.mining-indonesia.com |
For a full calendar of
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Kinross Gold Corp. has appointed Paul H. Barry executive vice president and CFO. He replaces Thomas M. Boehlert who is leaving the company.
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Brigus Gold Corp. has appointed Jennifer Nicholson vice president of investor relations. The company also appointed Dana Hatfield CFO following the retirement of Melvyn Williams, the company’s current senior vice president and CFO.
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Golden Star Resources Ltd. has appointed Sam Coetzer executive vice president and COO. D. Scott Barr, current COO, has retired. He will continue with the company as a consulting technical adviser.
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The Doe Run Co. has appointed Aaron Miller vice president of environmental affairs.
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TintinaGold Resources Inc. has appointed Louis A. Lepry Jr. president, CEO and a director.
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Cameco has appointed Tim Gitzel CEO. Jerry Grandey, current CEO and a board member, is retiring.
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Björn Rosengren, senior executive vice president of Atlas Copco AB and president of the business area construction and mining technique, is leaving the company to become president and CEO of Wärtsilä Corp., Finland.
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AB Volvo has appointed Olof Persson, currently president of Volvo Construction Equipment, president and CEO of Volvo. He will assume the position September 1 when Leif Johansson retires. As of May 1, Persson will become executive vice president and deputy CEO and work parallel with Johansson.
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