Engineering & Mining Journal

APR 2017

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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74 E&MJ; • APRIL 2017 www.e-mj.com EQUIPMENT GALLERY Hecla's Lucky Friday mine deployed two Artisan Vehicle Systems 1 5 3 haulers, which are powered by lithium batteries. The mine is seeking to resolve ventilation and cooling issues, Hecla reported. The 1 5 3 was covered in the Decem- ber E&MJ.; Artisan reportedly designed the 1 5 3 around the electric powertrain, battery, and advanced operator control system. The 1 5 3 is smaller than a com- parable diesel loader, but has 300% of the power, Artisan reported. With 3 metric tons (mt) of tramming capacity, the LHD's total power is 214 kilowatts and tractive effort is 75 kilonewtons. The powertrain motor's peak power is 127 kilowatts (kW) or 170 horsepower. Its peak torque is 695 newton meters, or 513 foot pounds. It is powered by a 600 volt DC, 88 kW-hour lithium iron phosphate battery. The bucket is 1.2 cu- bic meters (m), or 1.5 cubic yards. Lift breakout force is 4,899 kilograms (kg) (10,888 pound force [lbf]); tilt breakout force is 7,031 kg (15,500 lbf). Total op- erating weight is 9.5 mt. The principal mining method at Lucky Friday is ramp access, cut and fill, which uses rubber-tired equipment to access silver veins. Previously, the 153 was beta tested in Kirkland Lake Gold's under- ground mines. artisanvs.com Conveyor Cleaner to Reduce Cost Of Ownership Martin Engineering's QB1 Cleaner HD con- veyor belt cleaner features a square main- frame positioned to shed dust and spill- age. The urethane blade formulation can accommodate belt speeds of up to 900 feet per minute (4.6 m per second) and service temperatures of -40° to 160°F. It also features Constant Angle Radial Pres- sure (CARP) technology to maintain the most efficient cleaning angle throughout service life, with a no-tool replacement process that can be performed safely by one person in less than five minutes. The cleaner is available in lengths of 18 to 96 in. (457 to 2,438 millimeters), and can be ordered in 10-ft (3.05-m) sections. The design is covered by the Mr. Blade program, under which the com- pany's mobile technicians provide fac- tory-direct replacement blades, delivered and custom-fitted on-site and installed for free. The company's Forever Guar- antee ensures lifetime no-cost replace- ment of tensioners and main frames for any belt cleaner assemblies that are fitted with the company's replacement blades. www.martin-eng.com Silver Mine Gets Electric LHDs

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