Impact by the operating and structural parameters of a screen on the technological parameters of vibratory basalt sieving

Purpose is to identify a dependence of basalt raw material fine screening upon the operating and structural parameters sieving equipment. Methods. The research results have been obtained relying comparative analysis In this regard, analyzed grading efficiency characteristics were defined for three densities rock mass mined in open pits. They are γ = 1.4 g/сm3 tuff; 2.2 lava-breccia; 2.6 basalt. components extracted selectively processed separately. Findings. Expediency complex mining processing (being tuff, lava-breccia, basalt) as well their selective treatment has identified. Mathematical modelling helped generate regression models screen. represented calculation indicative strong correlation between factors involved by (i.e. density; inclination angle disturbance force vibration exciter screen; screen effector; mesh size; specific load on frequency drive; length). Originality. For first time, dependencies modelled mathematically. Based multifactor experiment, ideas developed concerning process; selection boundaries each parameter control; determination law changes technological while controlling them. Practical implications. Use findings will help make adequate solutions selecting instrumental conditions an operation schedule prepare its integrated processing.