JAN-FEB 2018

Best of Germany 2014 - Mining Equipment and Mining Technology

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Page 32 of 51

VDMA 31 2018 • VDMA MINING SUPPLEMENT sequences for filter cake washing are preconfigured for optimum washing results. Metris Internet of Things (IoT) products focus on smart sensors, Big Data analytics and augmented reality. These technologies are applied and adapted individually to meet the requirements of each individual customer — exploiting the capabilities of systems al- ready installed and measurably enhancing plant performance. In combination with additional upgrade packages, the Me- tris addIQ control system maximizes performance regardless of whether it is applied to ANDRITZ filter presses or other makes. The packages available for filter presses include addIQ Dynamic, addIQ Prime and addIQ Flex. All four addIQ packages can be equipped with addIQ Footprint, a long-term data trending tool whose features include a dashboard, trends, a logbook, updates and reports, mobile access, and QR Iden- tification. What's more, with addIQ Connectivity, one can monitor the health status of their machine 24/7 from anywhere in the world. These add-ons allow users to store trend data for 24 months and present the most important KPIs for process values on the dashboard, all with a certified data connection and backup in the data cloud. Operators can also generate and email automatic reports with process values and corresponding trend curves. The mobile app provides direct access to live data and machine-relat- ed documentation, while peace of mind is guaranteed thanks to the logbook functionality and automatic email notifier for the most critical process alarms. Dry Ore Grinding Santral Mining has decided to use a Loesche dry vertical roller mill to grind gold ore in Turkey. The project is attracting a lot of attention world- wide because the gold content of the raw ore is relatively low, and there- fore, the profitability of the finish grinding and subsequent flotation is of particular importance. In grinding and flotation tests, it was proven that Loesche grinding technology not only works in a more energy-efficient and wear-resistant way than the conventional wet ball milling, but it also makes a significantly higher yield of the dryly ground product possible. The energy demand for vertical roller mills depends on the pressure and, in particular, the speed when grinding hard rock. Loesche is also developing vertical roller mills with drive-power capabilities of up to 18 MW for use in mining applications. Wet grinding systems (SAG and ball mills) have drive systems with power capabilities of up to 25 MW. The Loesche mill requires substantially less power for comparable grinding capacities of up to 2,000 mt/h. The cost benefits of using large grinding plants with vertical roller mills will encourage the more widespread use of this technology, which is a relatively new concept for the mining industry. The largest Loesche mills to date have drive-power capabilities up to 10 MW. The mills have redundant systems to avoid machine failures and to be able to ensure high levels of availability. Loesche vertical roller mills operate dry and require substantially less power than SAG Mills for comparable grinding capacities of up to 2,000 mt/h.

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