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Isamill™ Uses Horizontal Milling to Secure Better Energy Efficiency

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Isamill™ Uses Horizontal Milling to Secure Better Energy Efficiency IsaMill™ uses horizontal milling to secure better energy efficiency, product size and availability IsaMill’s horizontal configuration means it’s completely different from other mills. IsaMill™ gives me an increased recovery that outweighs the cost. I never have to worry about the mill.” – Amandelbult Operation, Anglo American Flowsheet improvements for the real world IsaMill™ at a glance > Real-world success in 130 metalliferous installations across 21 countries since launching in 1994 > World’s only horizontal fine grinding mill, it avoids short-circuits and gives the highest availability > Most efficient fine grinding mill in the world > Strongest performance guarantee in the world > Most consistent product size > Delivers better results to downstream flotation and leaching For more: [email protected] Tel +61 7 3833 8500 IsaMill™ 1 IsaMill™ is the most efficient and reliable grinding mill available and with 130 metalliferous installations in 21 countries it has a proven record in the real world The IsaMill™ reduces the energy, media and capital costs of grinding. It’s incredibly efficient and intense. It focuses only on the particles that need grinding. The IsaMill™ produces greater power vertical mill. It’s easy to operate and it The IsaMill™ is currently available in the intensity than ball or tower mills. maximises availability. following models, named for their net grinding volume: Today’s IsaMill™ is also light. A modest The IsaMill™ gives an accurate and volume of concrete and structural steel rapid scale up, so it’s predictable • M1000 (355–500kW)* are used, and the entire unit sits on a and reliable. • M3000 (800kW) one-storey platform. This means it’s Operating and maintaining the IsaMill™ about a third the height and weight of • M5000 (1120–1500kW) is safe, simple and reliable. It’s quick to similar grinding mills available. install, flexible in operation and easy • M7500 (2300kW) It produces the most consistent and to maintain. • M10000 (3000kW) ‘sharp’ particle size distribution in a The IsaMill™ is widely used in base simple open circuit configuration. • M15000 (3700kW) metals (copper, lead, zinc and nickel), IsaMill™ is the world’s only horizontal PGM, iron ore, industrial applications • M20000 (5000kW) fine grinding mill. The horizontal slurry and gold processing plants and is the • M50000 (8000kW). flow means low cost ceramic media best choice for regrinding concentrates, can be used without the concerns of a fine or ultrafine grinding and mainstream grinding. * Smaller models are available on request 2 Flowsheet improvements for the real world How IsaMill™ grinds more efficiently and delivers greater value 1. More accurate scale-up 3. Finer grinding and 5. Easier operation and better media maintenance The IsaMill™ is proven in the real world. Lab and pilot results are scaled to Slurry travels in a ‘plug’ flow pattern A Liquid Resistance Starter for the commercial size with 100% accuracy. through the eight rotating grinding IsaMill™ motor means it can be started We test rigorously for specific energy, discs within the mill. Media recirculates under load, so no time is lost in draining particle size and optimise the media between the discs, colliding with the the mill. size for accurate scale up so that every particles in the feed, causing breakage. Maintenance is easy. The entire grinding plant we install always meets design. The media is ceramic and avoids the chamber is quick to access. Slurry is When you buy an IsaMill™, the scope passivation of particles common with flushed from the IsaMill™ and the includes process and engineering metallic media, improving the product media is dumped through a scuttle design, supply and commissioning by for flotation and leaching. valve into a hopper below. The IsaMill™ experts with real-world experience, for shell is then pushed back along rails The IsaMill™ delivers an even blend easy installation by a local contractor using hydraulic rams, giving you quick of attrition and abrasion of particles or EPCM. access to all the wear parts, all in under throughout the mill. At the discharge half an hour. end, slurry and media reach a patented 2. Easier installation product separator where media and Even a complete shutdown for and operation over-sized particles are retained in the inspection and replacement of wear grinding zone, while particles at the parts including the liner itself takes less Because the IsaMill™ delivers high correct grind size exit the IsaMill™. than eight hours. intensity grinding, it only requires a small footprint. 4. Most consistent product The horizontal configuration results in a low height, unlike vertical grinding The IsaMill™ gives a sharper product mills. Smaller cranes are required to size distribution. Other mills with just install and maintain the IsaMill™. one grinding stage require closed circuit cyclones and high recirculating The IsaMill™ takes about a tenth the loads and still don’t produce product grinding volume of an equivalent ball size distributions as tight and steep as or tower mill. There are no external the IsaMill™. screens or cyclones required because the IsaMill™ internally classifies the The IsaMill™ also produces clean, feed and delivers a consistent product. fresh mineral surfaces that improve downstream performance from flotation and leaching. IsaMill™ 3 How we help you get more from your IsaMill™ Commitment in a partnership A strong performance guarantee The IsaMill™ was developed and proven in real world mining IsaMill™ uses horizontal milling to secure better applications, so we’ve built up a suite of services that underpin our energy efficiency, product size and availability. Technology Partnership concept. The commitment and agreement is complete: As a Partner: • Your needs for a given energy draw or a given • You will have access to training opportunities at real client sites. product distribution will be secured by the • You will always have access to our most experienced technology performance guarantee. experts around the world. • We will work with you to ensure • Your team will have opportunities to learn from other users. your needs for feed variability, operations and maintenance • You will have access to a comprehensive spare parts supply. will be built in. • You’ll have access to maintenance and advisory services. • Training and support • You will secure an ongoing technical relationship with us. will be included. 4 Flowsheet improvements for the real world How others have gained from IsaMill™ George Fisher’s regrind Prominent Hill uses IsaMill™ 130 metalliferous circuit boosts recovery and to boost downstream installations in 21 Countries reduces reagents performance by December 2017 When the George Fisher project OzMinerals’ Prominent Hill copper- Clients and Projects include: needed fine grinding to a P80 of gold concentrator began commercial • Woodlawn (Heron Resources) seven microns in their zinc retreatment production in 2009. They needed circuit, they knew the IsaMill™ liberated fluorine minerals to be • Aktogay (KAZKMYS) would be ideal. rejected in the cleaner flotation circuit • Gidgi (KCGM) to produce a commercial quality Every one-micron size reduction in the copper-gold concentrate. • Eleonore (GoldCorp) zinc retreatment circuit below a P80 of 10 microns improves the overall plant A 3 MW M10000 IsaMill™ operating with • Constancia (Hudbay) zinc recovery by 1%, and the IsaMill™ 3.5mm ceramic media was installed to • Dugald River (MMG) was modelled to achieve this. liberate the fluorine bearing gangue minerals from the rougher concentrate. • Mortimer (Anglo Platinum) Eight 1.1 MW IsaMill™ installations were introduced, two to regrind lead cleaner The IsaMill™ regrind circuit successfully • Mt Milligan (Thompson Creek Metals) feed and six to regrind intermediate produced a leaner circuit feed P80 of • Ernest Henry Mining (Xstrata Copper) zinc flotation streams. The existing 20–25μm ensuring adequate liberation. concentrator was modified to suit the What’s more, the inert grinding • Penasquito (Minera Penasquito) new ore type. environment in the IsaMill™ prevented contamination of the mineral surfaces The results were good and better – the and gave OzMinerals the optimum recovery improvement was expected flotation performance from the first day due to better liberation, but the of commissioning. operation also saw a significant drop in reagents and circulating loads. Fine minerals are expected to consume more reagent due to their higher surface area, but improved liberation dropped circulating loads. Clean fresh surfaces from inert attrition increased flotation rates and selectivity, and these significantly reduced the need for collector and depressant. IsaMill™ 5 isamill.com glencoretechnology.com Follow us linkedin.com/company/glencoretechnology @GlencoreTech facebook.com/Expertise.in.Technology CONTACT Glencore Technology Pty Limited ABN 65 118 727 870 Level 10, 160 Ann St Brisbane QLD 4000 Australia T. +61 7 3833 8500 F. +61 7 3833 8555 E. [email protected] Chile · T. +56 2 2342 9000 Toronto · T. +1 416 775 1666 South Africa · T. +27 11 772 0555 Russia & CIS · T. +7 495 730 8811 D10_GLT3174A_02/21.
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