Online Superficial Gas Velocity, Holdup, and Froth Depth Sensor for Flotation Cells

In flotation process, the efficiency and selectivity depend on mineralogy, particle size distribution liberation, reagents added, mixing, coverage. However, kinetics of recovery is highly dependent cell hydrodynamic circuit configuration operational strategy. Controlling froth depth gas flow rate, measured as superficial velocity, a straightforward alternative related to in collection zones. these parameters are not accurately. Froth measurement based floating device coupled with sonic sensor; this presents hysteresis deviation due variation holdup pulp density. self-aspirated machines, there no technology measure velocity. To address problem, intelligent online dispersion sensor two concentric HDPE cylindres proposed. The cylinders. methodology improves accuracy velocity calculation new algorithm. pressure transducers, reducing uncertainty 1 cm. Pulp bulk density directly measured, can be estimated. Experimental results industrial validation indicate that system (Jg) self-calibrate, 2% error, error being ±1 Therefore, multiparameter for measuring cells was experimentally designed validated an environment (TRL 8). context, proposed emerges robust improve operation process.