Process equipment within coal preparation plants is subjected to corrosive wash water, abrasive (ROM) rock and coal particles, as well as mechanical stresses that require regular inspection and precise maintenance in order to ensure regular production output and reliable performance. One process area that is subjected to regular maintenance inspections due to its critical impact on coal particle sizing is coal screening, utilising wet, as well as dry, vibrating screens. These may be single or multi-deck in design and allow for particle size separation or classification to occur for later downstream processing.
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