Actual Problems in Machine Building 2017 Vol. 4 No. 2

Actual Problems in Machine Building. Vol. 4. N 2. 2017 Technological Equipment, Machining Attachments and Instruments ____________________________________________________________________ 84 ANALYSIS OF THE GRINDING PROCESS OF FRIABLE PRODUCT AT THE HAMMER CRUSHER Kerzhencev V. A. , Ph.D. (Engineering), Associate Professor, e-mail: kerjencev46@ngs.ru Martynova T.G. , Ph.D. (Engineering), Associate Professor, e-mail: tatyanamartynova1511@gmail.com Tertova A. I. , Student, e-mail: anyashevchenko96@mail.ru Dyubanova I. D. , Student, e-mail: ira_dyubanova@mail.ru Novosibirsk State Technical University, 20, Prospect K. Marksa, Novosibirsk, 630073, Russian Federation Abstract The article offers analysis of the grinding process of friable material at the hammer crusher. The process takes place at the working chamber of crusher using moving hammers. The article presents the definition of physical and mechanical properties of the mixture. The properties influence on the extent of grinding. Also the article presents the definition of the correlations between extent of grinding and sizes of particles. The factor of solidity specifies in the formula calculation of performance. The authors have considered this factor on condition of the continuous flow of the mixture at the working chamber of crusher with predetermined speed and performance. Keywords Crusher, friable mixture, hammer, solidity, extent of grinding, sizes of particles, performance