Engineering & Mining Journal

NOV 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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NEWS - CONTINUED 30 E&MJ • NOVEMBER 2017 www.e-mj.com DECEMBER 3-8, 2017: American Exploration & Mining Association's Annual Meeting and Exposition, Reno, Nevada, USA. Contact: Web: www.miningamerica.org. JANUARY 28-31, 2018: 44 th Annual Conference on Explosives and Blast- ing Technique, San Antonio, Texas, USA. Contact: Web: www.isee.org. FEBRUARY 2-5, 2018: Mining Indaba, Cape Town, South Africa. Contact: Web: www.miningindaba.com. FEBRUARY 25-28, 2018: 2018 Society for Mining, Metallurgy and Explo- ration (SME) Annual Conference & Expo, Minneapolis, Minnesota, USA. Contact: Web: www.smenet.org. MARCH 4-7, 2018: Prospectors & Developers Association of Canada's annual meeting, Metro Toronto Convention Centre, Toronto, Canada. Contact: Web: www.pdac.ca. APRIL 10-12, 2018: EU-Latin America Mining & Exploration Convention and Trade Show (METS), Madrid, Spain. Contact: Web: www.mets2018.eu. APRIL 17-19, 2018: MiningWorld Russia, Crocus Expo, Moscow, Russia. Contact: Web: www.miningworld.run/en. APRIL 23-27, 2018: Expomin 2018 Espacio Riesco, Santiago, Chile. Contact: Web: www.expomin.cl. MAY 6-9, 2018: Canadian Institute of Mining (CIM 2018), Vancouver, British Columbia, Canada. Contact: Web: www.cim.org. MAY 29-31, 2018: Peru Gold & Silver Symposium, The Westin Lima Hotel and Convention Center, Lima, Peru. Contact: Web: www.snmpe.org.pe. JUNE 12-14, 2018: Euro Mine Expo, Skellefteå, Sweden. Contact: Web: www.euromineexpo.com; Email: jaana.tengman@euromineexpo.com. NEWS - CALENDAR OF EVENTS nine dump trucks and a variety of other support machines. The project EPC (engineering, procure- ment, and construction) contractor, Sedg- man, has mobilized three personnel to the site to oversee earthworks development and prepare for the start of concrete works in the first quarter of 2018. Engineering design work is more than 20% complete. The scope of Sedgman's EPC contract is for a 1.5-million-metric-tons-per-year (mt/y) mineral processing plant to enable the reprocessing of tailings from previous operations and of ore produced from an underground mine that Heron will devel- op on the property, plus a paste backfill plant and supporting infrastructure. A new processing plant will be deliv- ered in stages that align with project de- velopment. Plant feed will initially be from tailings from previous operations and will switch over to underground ore when it be- comes available. At steady-state produc- tion, the current Woodlawn project is de- signed to produce approximately 70,000 mt/y of zinc concentrates, 30,000 mt/y of copper concentrates, and 25,000 mt/y of lead concentrates. Byproduct revenue will be generated from gold and silver content in the copper and lead concentrates. Equipment procurement is well under way with A$25.1 million of orders placed out of a project total A$30.3 million. In- cluded among the current orders are an M10000 IsaMill; an Outotec ball mill, flo- tation cells, and thickeners; Metso regrind mills; PHE high-voltage electrical equip- ment; an SNF flocculant plant; Tecnicas Hydraulicas filters; a Batchcrete lime silo; a concentrate building and a workshop from Container Domes; SEW conveyor drives; and Weir slurry, sump, and froth pumps. Earthworks will soon begin for the underground box cut, as well as work on the haul road and tailings storage facility and relocation of a section of the existing high-voltage electrical network. Initial capital to develop the Wood - lawn project is estimated at A$151.6 mil- lion, including A$105.8 million for plant and infrastructure, A$13.2 million to establish the underground mine, A$20.2 million for engineering and owners' costs, and A$12.4 million of contingency. The Woodlawn project is located on the site of the former Woodlawn mine, which operated from 1978 to 1998 and processed 13.8 million mt of ore from open-pit, underground, and satellite de- posits at average grades of 9.1% zinc, 1.6% copper, 3.6% lead, 0.5 g/mt of gold, and 74 g/mt of silver. The mine was closed in March 1998 due to low metal prices and external corporate issues. Construction begins at Heron's Woodlawn redevelopment project 250 km southwest of Sydney, Australia. Ertech, which has the earthworks contract, is fully mobilized (above). (News-Australia/Oceania - from p. 18)

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