Research on the Atomization Characteristics of Cerium Nitrate Solution based on Design of Experiment
In order to meet the requirements of the spray pyrolysis method for preparing cerium oxide par-ticles,the atomization characteristics of cerium nitrate solution with different concentrations were studied experimentally by using a two-phase flow air-assisted atomization nozzles,and the atomization particle size SMD experimental data of cerium nitrate solution spray were quantitatively analyzed by response sur-face method and the quantitative relationship between atomization particle size SMD and solution physical properties and atomization environment parameters was obtained.In this experiment,the mass concentra-tion of the solution is 0.334～0.462,the volume flow rate of the solution is 0.05 m3/h and 0.12 m3/h,and the atomization air pressure is 0.2～0.5 MPa.According to the quantitative relationship analysis,the most significant factor affecting the atomization particle size SMD of cerium nitrate solution is the solu-tion concentration,followed by the atomization air pressure,and the solution volume flow rate has little effect on the atomization particle size SMD;the atomization particle size decreases with the increase of at-omization air pressure,and the effect of atomization air pressure on the less viscous solution is more sig-nificant.
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