Ensuring safe working conditions during the operation of foundry equipment

Abstract

Human activities in industrial production are subject to the risk of occupational diseases. This problem is of particular relevance in the working area of foundries. Prevention of occupational diseases and reduction of the concentration of pollutants in the atmospheric air of the working area is one of the many complex tasks associated with the assessment of the elemental and dispersed composition, as well as the density of distribution of particles of multicomponent dust. The aim of the study is to assess the elemental and dispersed composition of dust, which determines the hygienic state of the working area of the foundry. Results of the research. In order to develop a mathematical model, the particle size was estimated. The elemental composition of the dust has also been determined. A significant amount of fine dust and iron (48%) was found, which is associated with the processing of casting with iron shot. Having carried out statistical processing of experimental data on dispersed dust analysis and using the known distribution laws: normal, normal truncated, gamma distribution, Weibull distribution, an empirical dependence of the distribution density of the number of particles depending on their size was obtained.