In many industries millions of tons of various materials are subjected to fine grinding. It is relevant to improve the quality of final products at minimum power consumption. Vibration mills are widely used to obtain powders with the particle size of the final product of less than 10 microns. Depending on the design of a drive from and the nature of vibrations of a grinding chamber they are divided into mills with harmonic, biharmonic and polyharmonic vibrations. The general disadvantage of such mills is stagnant zones in loading reaching 30% of the grinding body weight. Thus, the efficiency of grinding is reduced. The paper considers a new design of a rotary vibration mill without stagnant zones, which significantly increases productivity and grinding fineness of the final product. It describes the equations that were obtained to calculate the power consumption of a drive and the kinetics of grinding.

Gavrunov A.Y., Bogdanov N.E., KaragodinaK.I., ShekhovtsovaY.A. EFFECTOFTHEMODEOFTHE GRINDING PROCESS IN A VIBRATION MILL ON A SPECIAL ENERGY CONSUMPTION This article presents the results of experimental studies of a vibratory mill. Regression equations are obtained in coded and natural form as a result of the complete factorial experiment in the central compositional plan, and their interpretation was shown graphically. The influence of the main factors is considered: the vibration frequency and rotation of the mill drum, the grinding factors of the grinding chamber, grinding bodies and the grindable material for the specific energy consumption. Was made a comprehensive analysis of the influence of the factors studied on the optimization parameter. It is shows which of the factors are the most significant. A conclusion is drawn and recommendations are given concerning the rational grinding regime in a vibratory rotational mill.

В данной статье рассмотрено устройство и кинематические особенности вибровращательной мельницы с наклонным барабаном. Получены уравнения по определению положения и траектории движения центра масс мелющих тел. Рассчитана работа, затрачиваемая на перемещение мелющих тел. Определены силы взаимодействия между мелющими телами и корпусом мельницы. Получены формулы для расчета составляющих и общей потребляемой мощности привода. На примере лабораторной мельницы рассчитаны все основные конструктивно-технологические параметры.