Serebrenikov E. Elaboration of methodology of dust concentration in working pit zone sites at ore mass reloading.

The object of research is a mining air of working area quarries at overloading of rock mass. The purpose of work is a development of dust concentration determination methodology on working area quarries at overloading of rock mass in order to improve accuracy of dust concentration with the help of mathematical and imitative simulation using information technologies that will allow to improve the choice of methods and means against dust. Methods of research are scientific generalization and analysis of literature resources, mathematical simulation, conducting of experiment calculation in the conditions of open pits. Novelty is that for the first time on the basis of the diffusion approach in the moving three-dimensional environment scattering dust in the air of working zones was determined and its concentrations different modes of loading and unloading mining equipment at direct-flow scheme of airing pits or in the presence of stagnated air zones; scattering dust in the presence of vortex air recirculation zone scheme for airing working zones quarries at overloading of rock mass determined; on the basis of mathematical simulation using the theory of similarity and dimensions the changes in dust concentration in air of working zones and under conditions for personnel by this index for typical sources of dust in areas of rock mass overloading were identified and in vestigated. The result is that the methodology of dust concentration in rock mass overloading calculation to provide efficient local dust monitoring in order to define boundaries of zones of contamination at the sites of working open pit areas on the basis of modern computer technology was developed; the results of research were carried out by introduction of "Method of dust concentration calculating at rock mass overloading at the sites of working open pit zones" it the scientific-research works of the State Enterprise Research Institute of Safety and Ecology in the mining and metallurgical industry, and project work of state enterprise " National Institute of enterprise design of the mining industry Kryvbasproject". Branch of research is mining.