Abstract
This article presents experimental data and methods for determining the characteristics of fire and explosion hazards of dispersed combustible materials and mixtures used in the manufacture of welding electrodes and in steelmaking, widely tested and used in scientific research. In order to select safe grinding equipment in the laboratory, studies of the fire and explosion hazard of ferroalloy powders prepared by various methods in laboratory installations and in industrial conditions were conducted. This article discusses the issues of fire and explosion hazard of dispersed combustible materials and mixtures used in the production of welding electrodes and steelmaking processes. Experimental data and methods for determining the explosive properties of such substances, which are widely used in scientific research, are presented. As part of the work, studies were conducted to determine the conditions for safe grinding of ferroalloy powders in laboratory and industrial conditions. The experiments included the analysis of samples obtained by various methods in order to identify factors affecting their fire and explosive properties. The features of the applied methods, their practical effectiveness and accuracy in risk assessment are considered. The results of the study make it possible to optimize the choice of grinding equipment, minimize the likelihood of dangerous situations during the processing of powdered materials and increase the level of industrial safety. The scientific significance of the work lies in a detailed risk analysis and the development of recommendations for the prevention of accidents associated with ignition and explosion of combustible dispersed materials. The data obtained can be used in the metallurgical industry, in enterprises producing welding materials, as well as in other industries where finely dispersed crushed products with combustible properties are used.