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ABSTRACT
Various online techniques for performance and condition monitoring of hydrocyclones have been proposed during the past few decades. However, in the recent years, the subject has gained tremendous popularity as the depleting ore grades demand optimized performance of hydrocyclones in any mineral processing plant. Therefore, in this work, an attempt has been made to critically review the promising online techniques under five different categories. It is found that vibration-based technique appears to be the most attractive proposition from application point of view because of the several inherent advantages associated with it.
Abbreviations and Symbols used
| C | = | Capacitance |
| Q | = | Charge |
| V | = | Potential difference |
| Ɛ | = | Permittivity distribution |
| ϕ | = | Potential distribution |
| ξ | = | Functional parameter |
| S | = | Sensitivity of the capacitance |
| σ | = | Conductivity |
| = | Sensitivity matrix | |
| Z | = | Voltage measured |
| Q [.] | = | Projection operator |
| μ | = | Electric potential |
| Ω | = | Area of a body |
| γ | = | Permittivity |
| ω | = | Angular frequency |
| ɛ | = | Electrical Permittivity |
| z | = | Impedance |
| τ | = | Xray transmission |
| α′ | = | Xray absorption |
| C’ | = | Solid concentration |
| L’ | = | Path length |
| I | = | Xray intensity |
| E | = | Energy of the Xray |
| Na | = | Response of the acoustic sensor |
| m | = | Mass of a particle |
| v | = | Velocity of the particle |
| α | = | Angle of strike |
| e- | = | Coefficient of restitution |
| Co | = | Factor representing transfer function |
| M | = | Mass flow rate of slurry |
| η | = | Kinematic viscosity |
| t | = | Time period |
| = | Characteristic mean velocity of the fluid | |
| V′ | = | Fluctuating part of the velocity |
| τ′ | = | Time delay |
| = | Turbulence Scale | |
| = | Turbulence Intensity | |
| R(τ′) | = | Auto correlation function |
| = | Convection velocity | |
| = | Vibration frequency | |
| = | Velocity and Pressure fluctuations | |
| = | Power spectral density due to velocity and pressure fluctuations |
Disclosure statement
No potential conflict of interest was reported by the author(s).