Engineering & Mining Journal

APR 2013

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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P R O C E S S I N G S O LU T I O N S as APC (Advanced Process Library) and Alarm Control. Functional details included in previous versions, such as the maintenance and service management system, have been further developed for Cemat V8.0. Innovational highlights are the additional operating modes for plants, device groups and individual units, as well as the monitoring of process values, such as accumulated pressure and flow rates. The user can also now easily assemble curve groups. Compared with previous versions, Siemens notes a significant new feature in version V8.0 is a "Quick Trend" display that can be configured directly from the process screen, making it easier to activate curve groups for display and evaluation purposes. The user adds the desired analog value into the graphic display of a plot with a mouse click. Previously, values had to be manually determined in the measured value archives. Cemat V8.0 also offers more operating mode options. In addition to complete groups, the operator now can disconnect individual loads within a group—as part of an energy management concept, for www.e-mj.com example. Settings such as "no interlocks," "specific interlocks only," and "safety interlocks only" now can easily be configured for manual operation; previously, these special interlocks had to be programmed. A new operating mode—Out of Service—is intended for unavailable devices and units, which may be undergoing maintenance, for instance. With Cemat V8.0, the user now can also use speed monitors in addition to process values such as accumulated pressure or flow rate, as the return information "drive is on." This, said Siemens, increases the quality of the information regarding proper functioning of a drive. Message blocks, measured values and process feedback messages now can be assigned not just to groups but directly to individual drives. The package's new Object Browser enables any object in the process to be identified and displayed in current operating mode; for example, "in simulation." New block icons simplify operation of the system: block icons in subdued colors indicate a fault-free state, while more colorful icons draw the operator's attention directly to important information. Outotec Adds Two Models to PF Filter Line Outotec has introduced the third generation of filtration equipment in its PF filtration lineup—the PF 12 and 15 series automatic pressure filters—which complete the product line and follow the previous launch of the world's largest pressure filter, the PF 180. Outotec Larox PF filters are recessed plate membrane filters in which the chambers lie horizontally. The filter plates are stacked vertically to give a total filtration area between 1.6 and 252 m2 (2–300 yd2), depending on the model size. Filter capacity can be expanded by adding plates. The PF 12 and 15 series offer filtration areas ranging from 9.45 to 31.5 m2 (11– 37 yd2), and 15 to 50 m2 (18–60 yd2), respectively. Outotec said the PF line employs a single filter cloth that serpentines between the filter plates and reliably transports the cakes out of the chamber in every cycle; this eliminates any requirement for manual assistance. The PF filters operate automatically, configured either with a standalone panel and integrated PLC or through APRIL 2013 • E&MJ; 149

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