Review article

The subject of research is the process of air purification from solid particles of welding aerosol in the welding workshop. There was performed an analysis of the dispersed composition of the welding aerosol. To ensure the standardized air quality in the premises of welding shops, it is proposed to supplement the general ventilation system with a mobile device for collecting dust with a filter. A new type of mobile device for purification of air from solid particles is presented. There are proposed four versions of the mobile local unit design: basic design without additional elements for mixing; a design with one- and two-layer mesh; with two blades and mesh between them. In order to justify the choice of the most rational option, numerical modeling of gas-liquid interaction processes in the ANSYS Fluent hydrodynamic complex was performed. There are obtained results of a numerical experiment in the form of a gas-liquid contact area for each option confirming the feasibility of using an option with two blades and a mesh between them, in which the largest gas-liquid contact area is provided.