Pilot study of change of dispersion of charged particles in the stream and on the surface at electrostatic dispersion

Abstract

In work two types of dispersion of fine powders are described: pneumatic and electrostatic. Both methods of dispersion promote crushing of agglomerates of the used fine powder at the device exit, however the principle and extent of splitting are various. The pilot studies allowing to estimate change of dispersion of submicronic aerosol environments both in the course of dispersion are for this purpose conducted, and at sedimentation on a surface. As methods of the analysis of the size of particles in pilot studies optical measurements by means of the analyzer of dispersion of particles Malvern Spraytec, the tracking dispersion dynamic, and also the optical analyzer Pip 9.0 allowing to consider parameters of distribution and concentration of the condensed disperse phase of substance besieged on a surface were used. Results are presented in the form of calculating functions of distribution of particles by the sizes for the studied substances.