STC Bakor (Moscow, Shcherbinka, Russia):

Dmitrakova U. V., Researcher, dmitrakova@ntcbakor.ru
Kruglov A. V., Head of Research Center, kruglov@ntcbakor.ru

NUST MISIS (Moscow, Russia):

Yushina T. I., Head of Chair, Candidate of Engineering Sciences, Associate Professor, yuti62@mail.ru

Chylbak-ool E. D., Postgraduate Student

The article analyzes the operation practice for the main types of filtering equipment used at mining and processing enterprises of the Russian Federation. Continuous vacuum filters are widely used for slurry dewatering. These may be drum, disc, belt type filters, filter tables and tilting-pan filters. Batch filters are represented by cartridge filters, plate filters, and plate-and-frame pressure filters. Their operational advantages, disadvantages and applications are considered. It is noted that filter designs that combine dewatering processes of different physical nature in a single unit are becoming more widespread. Such a design boosts separation efficiency, reduces energy consumption and operation costs, and enables full automation of the filtration process. For all types of filters, there is a trend toward switching to lighter and cheaper materials and larger total filtration areas through increased filter sizes. When designing the automation system for a filtering area, it is critical to provide sensors for monitoring the thickening and filtration process parameters, use them for building local automation systems, then combine the latter into an overall dewatering process automated control system. There is a steady trend towards replacing fabric filters with more efficient ceramic units. Non-ferrous metallurgy enterprises prefer pressure filters due to the specific features of raw materials processed and the processing technology used. In general, concentration performance, production costs and suitability of the dewatered concentrate for further metallurgical processing largely depend on the selection of filtration equipment and a sustainable filtration technology.

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