Notre offre produits propose des solutions pour presque tous types de projets d'exploitation minière et d'excavation de roche. Notre gamme d’équipements et de servs pour l'exploitation minière et l'excavation de roche est étudiée afin de maximiser votre productivité et votre rentabilité.

Ball Mills and stirred mills are applied across a wide range of applications, but for each ore there is optimum efficient range. The figure to the left shows the typical application ranges for ball mills and stirred mill. The Vertimill is always more efficient than a ball mill with energy savings ranging from 30% to greater than 50%. The transition point from the Vertimill to an SMD/IsaMill ...

Fine Grinding 13 • Typical refractory gold IsaMill fine grind window 25-90 kWh/t to mill pyrite concentrates to P 80 10-12 µm 10 30 50 70 90 110 1 10 100 S p e c i f

The IsaMill also incorporates a proprietary particle separator, minimizing overgrinding of the particles as the ground particles pass through the separator, while reticulating the oversize material back into the mill. An IsaMill can be provided as part of a complete grinding plant for projects, which reduces the installation time for the project.

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Notre offre produits propose des solutions pour presque tous types de projets d'exploitation minière et d'excavation de roche. Notre gamme d’équipements et de servs pour l'exploitation minière et l'excavation de roche est étudiée afin de maximiser votre productivité et votre rentabilité.

Improving Grinding Efficiency with the IsaMill™ M. Larson1, R. Morrison1, F. Shi1 and M.F. Young2 1University of Queensland, JKMRC, QLD 2Xstrata Technology, QLD Introduction, Background and Objectives As mining companies have been called on to

The IsaMill is an energy-efficient mineral industry grinding mill that was jointly developed in the 1990s by Mount Isa Mines Limited and Netzsch Feinmahltechnik ("Netzsch"), a German manufacturer of bead mills. The IsaMill is primarily known for its ultrafine grinding applications in the mining industry, but is also being used as a more ...

Eight consecutive grinding chambers, patented product separator and short residence times means the mill constantly delivers sharp product size distribution without external classification. The IsaMill™ is a closed mill. Slurry travels through the mill in a 'plug' flow pattern through consecutive grinding discs.

A Power Model For Fine Grinding HIGmills AR Heath1, V Keikkala2, A Paz1 and H Lehto2 1. Outotec, Perth, Western Australia 2. Outotec, Espoo, Finland Abstract A grinding power model has been developed to predict the power draw of Outotec’s vertical fine grinding mill (HIGmill). The model is based on a combination of

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IsaMill™ Grinding Solutions’ performs IsaMill™ testing using a Netzsch LM4 mill, which has the exact same internal dimensions and workings as the IsaMill M4. Signature plot testing using the IsaMill™ provides data on the specific energy required to reach product size and can be used in the design of IsaMill™ grinding circuits.

Grinding Mechanism The IsaMill™ is a horizontally stirred mill consisting of a series of 8 discs rotating around a shaft driven through a motor and gearbox. The discs operate at tip speeds of 21-23m/s resulting in high energy intensities of up to 300kW/m3. Figure 2 illustrates the layout of the IsaMill™.

Grinding media types Until 2005, all IsaMill installations have taken advantage of the technology’s ability to use low cost, but relatively low quality grinding media such as silica sand, river pebble, smelter slag or fine primary mill scats (autogenous milling). Whilst the IsaMill produces high energy efficiencies