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Outokumpu orders ABB mine hoist systems.

ABB has been awarded a contract for the design, supply and installation of two complete mine hoist systems at Outokumpu Chrome's Kemi mine. The contract includes one production hoist with a capacity of 26 t and one service hoist for six persons. ABB will supply both mechanical and electrical parts, including the hoist machineries with hydraulic brakes, electric drive and control systems, rope-guided skip, cage and counterweight, head and tail ropes with attachments, loading and unloading equipment, etc.

The production hoist is a 4-rope, 3.2 in-diameter friction hoist, while the service hoist is of drum type. ABB's delivery also includes a direct torque control drive system ACS 600 with 1,500 kW induction motor for the friction hoist. Other supply for the two hoists includes ABB controllers, operator stations, and advanced local and remote diagnostics and troubleshooting. Delivery of both hoists is scheduled for 2002.

The new hoist systems are part of the project at Kemi to switch over from open pit to underground mining in order to lower the production costs. The Kemi chromium ore deposit, on the coast of the Gulf of Bothnia in northern Finland, was discovered in 1959 and the existing open-pit mine was established in 1968 in this area. The company will invest over $60 million and start underground mining in 2003, increasing mining capacity from today's 1 Mt/y currently to 2.5 Mt/y, subject to final approval. Underground mining will start at a depth of 500 m.

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Title Annotation:Outokumpu Chrome, ABB Asea Brown Boveri
Publication:Mining Magazine
Article Type:Brief Article
Geographic Code:4EXSI
Date:Mar 1, 2001
Words:246
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