화학공학소재연구정보센터
Canadian Journal of Chemical Engineering, Vol.76, No.1, 156-160, 1998
A soft sensor for flotation plants
A soft-sensor was developed to estimate the solids flow rates in the streams of a flotation circuit. The algorithm uses metal assays and mass now rate measurements to perform the estimation. The method performs a recursive least squares estimation of the mass flow rates based on the assumption of mass conservation over a specified time window. The soft-sensor is programmed into a Vax computer system interfaced with a DCS and is currently used for process control and instrument tuning.