Investigation Of Performance Of The Vertical Sieve Tray Mist Eliminator

In this paper, with the background of a vertical sieve tray mist eliminator in Zhejiang Dayang Chemical Ltd. NH4Cl reclaim, the performance of the mist eliminator was investigated by experiment and numerical simulation.The performance of the mist eliminator was investigated by experiment. Using spray to simulate the mist eliminator's actual working environment, at the condition of normal temperature and normal pressure, the relation between separation efficiency and outlet gas velocity, the relation between pressure drop and outlet gas velocity was investigated by experiment with different liquid flux. At the same time, the relation between viscosity and separation efficiency was investigated by experiment. This experiment's result showed that: â‘  the separation efficiency increased steadily with the gas velocity until it reached a peak value and thereafter diminished with further increase in gas velocity, and the separation efficiency increased with the nozzle's liquid flux, â‘¡the separation efficiency increased with the drop viscosity. â‘¢ the pressure drop increased with the gas velocity.The liquid-gas flow in mist eliminator was numerically simulated by CFD's commercial software-Fluent 6.0. First, the flow field in mist eliminator was numerically simulated with the Standard k-e Model and then the liquid-gas flow was numerically simulated using Fluent 6.0's Discrete Phase Model. The numerical simulation result was basically accord with the experimental result.The result of the investigation will be helpful for designing and applying the vertical sieve tray mist eliminator.