Generation of solid particles out of suspensions, solutions, and biological agents

Two-substance nozzles are mainly used for dispersing liquids, suspensions, and solutions. For dispersing salt solutions, the conventional atomization methods, such as that of the Collison Nebulizer, which was also built by Palas^®, are not particularly suitable since salt crystals precipitate at the nozzle outlet and lead to partial obstruction of the nozzle system.

Fig. 1: Schematic diagram of the AGK 2000 with cyclone

A special nozzle developed by Palas^® enables the atomization of salt solutions with the highest dosing constancy.

Depending on the solution concentration of salts in the reservoir, the particle size of the aerosol can be influenced. Higher solution concentrations lead to larger particles.

Dependency of the particle distribution from the concentration of the solution (Figs. 2 and 3). Measuring device: welas^® digital system from Palas^®.

Fig. 2: Representation of the volume-based integral distribution of a 20 % KCl solution and a 0.15 KCl solution

Fig. 3: Representation of the number size distribution of a 20 % KCl solution

Extensions/Accessories

The AGK 2000 has a straight or curved drying column and is optionally pressure-resistant up to 10 bar.