Kharachykh G. Decline of level of noise on working places at crushing and sorting of build materials

The process of noisemaking is investigated at the overload of a lump build material. Purpose: decline of harmful influence of noise on the personnel of shifting knots of crush-sorting complex. Methods of researches are experimentally-analytical for the estimation of features diminishing of levels of voice pressure on territory and in rooms with the use of modern acoustic equipment. Conformities to the law of distribution of shock noise are set. Conformities to the law of decline of noise are set with the change of distance in the apartments of small volume. The estimation of socio-economic efficiency is developed taking into account the risk of harmful action of noise. Object: facilities of decline and protecting from noise on the grounds of shifting knots of complexes on processing of a build material. New constructions and methods for the reducing of shock noise are offered and these technical suggestions are included on enterprises.