MoistScan® online microwave moisture analysers find ever increasing use in production and processing plants where moisture content and control is critical to efficiency, quality as well as health and safety. Production managers solve process challenges with MoistScan® analysers in the following areas.
Bulk Materials Handling
A common process challenge for which MoistScan® analysers are purchased is to reduce problems associated with the conveyance and processing of bulk materials. Typically, problems arise when water is added to materials, particularly materials that are high in fine particles. Minerals that have significant clay content are cases in point as particles tend to agglomerate at higher moisture levels and become sticky. This causes problems at transfer points and in chutes and hoppers where hang-ups or blockages can occur. Better monitoring and control of water addition can significantly reduce plant down-time by eliminating blockages.
Where dewatering is required such as coal wash plants and mineral concentrators, MoistScan® is used in association with dewatering equipment such as centrifuges, vacuum filters and other solid-liquid separation technology.
Water addition commonly begins at the mine where it is applied to suppress dust, starting at the face and at transfer points, throughout its transport out of the mine. Consequently, material arriving at the preparation plant can be quite wet.
Both economic and practical consideration dictates that water must be removed to a predetermined level after it has been processed and before it is dispatched. Often this level of moisture is critical. Too much moisture may cause transportation and safety issues as well as result in payment penalties. Too little moisture may result in quality reduction and loss of saleable yield. In this regard online moisture analysis can play an important part in dewatering and drying.