Real-time density measurement can help to verify changes in the slurry from the grinding circuit to the flotation cells. The effect of flotation feed density on metallurgical performance has been investigated. Results of test work have shown that the pulp density affects key parameters of the flotation process in both the pulp and froth phases (Runge et al, 2012). One of the findings was that froth phase recovery presumably improves because of a stabilising effect due to a greater loading of solids on bubble surfaces.
Optimal flotation means reducing the amount of gangue that is sent together with valuable minerals to further stages of the process. An enriched product should be produced with the lowest energy costs, containing most valuable materials (the concentrate). If you combine a density meter and a flow meter in the flotation feed and line of the final product of the flotation, this will allow a mass balance calculation and calculation of the efficiency of the circuit.
Read more about flotation circuit optimisation in our blogs (1, 2, 3 and 4) and let us know if you want to receive our free whitepaper about five reasons to measure density in the flotation circuit.
- Flotation Circuit Blog 1/4: Purposes and benefits of measuring density in flotation
- Flotation Circuit Blog 2/4: Effect of flotation feed density on metallurgical performances
- Flotation Circuit Blog 3/4: The role of the flotation operator and instrumentation
- Flotation Circuit Blog 4/4: How to prevent ore piling up in the flotation cells