Measuring froth-pulp interactions at high-speed frame fates

Abstract

Background Quantifying mass transport of bubbles from the pulp to the froth is a key metric for improving recovery rates in industrial flotation cells. Most existing flotation literature investigates froth behavior separately from particle attachment in the pulp. As noted by van Deventer, Feng and Burger (2001), very little research focuses on the behavior of the froth-pulp interface (FPI). Machine vision image analysis is widely used to extract quantitative measurements about froth characteristics or bubble behavior from film (Jahedsaravani, Marhaban and Massinaei, 2014; Aldrich et al., 2010).