Bench System for Iron Ore Moisture Measurement
Vinícius Nunes Lage, Alan Kardek Rêgo Segundo, Thomás V. B. Pinto, Carina Carla Aparecida Felipe da Silva, Érica Silva Pinto, Marcelo Eustáquio Hamanaka Silva, Sávio Augusto Lopes da Silva, Paulo Marcos de Barros Monteiro · 2018
Moisture content of materials is a widely used parameter for controlling several industrial processes. Especially in mining, this variable has fundamental importance for transporting and handling stages, which represent the most expensive part of ore treatment. This work presents the development of a bench system for measuring iron ore moisture in real time. The sensor consists of a pair of stainless steel electrodes and, differently to other systems for this purpose, it is based on a modern current-to-voltage method, which presents simple circuit, low-cost, high accuracy, high signal-to-noise ratio, fast response and immunity to stray capacitances.