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60th anniversary of the Dept. of Metallurgical Equipment of Lipetsk State Technical University
ArticleName Analysis of the influence of wear of working parts on the efficiency of crushing process in a hammer crusher
DOI 10.17580/chm.2024.01.04
ArticleAuthor D. A. Vlasenko, A. A. Kharitonenko, A. V. Bocharov, A. L. Chelyadina, M. A. Shipulin

Donbass State Technical University, Alchevsk, Russia
D. A. Vlasenko, Cand. Eng., Associate Prof., Dept. of Metallurgical Technologies, e-mail:


Lipetsk State Technical University, Lipetsk, Russia
A. A. Kharitonenko, Cand. Phys.-Math., Associate Prof., Dept. of Metallurgical Equipment, e-mail:

A. L. Chelyadina, Senior Lecturer, Dept. of Metallurgical Equipment, e-mail:


Lipetsk State Technical University, Lipetsk, Russia1 ; NLMK, Lipetsk, Russia2
A. V. Bocharov, Associate Prof., Dept. of Metallurgical Equipment1, Specialist of the Dept. of Personnel Training and Development2, e-mail:


Lipetsk State Technical University, Lipetsk, Russia1 ; SMS Group Ltd., Lipetsk, Russia2
M. A. Shipulin, Associate Prof., Dept. of Metallurgical Equipment1, Deputy Chief Engineer2, e-mail:


The results of the analysis of the effect of wear of the main working bodies on the efficiency of the crushing process in a hammer rotary crusher are presented. In the production conditions of the charge preparation section of the agglomeration shop of the Alchevsk Metallurgical Combine LLC "YuGMK", the degree of influence of the limiting technical condition of the wear of the working surface of the hammer strikers, grate grate and jack plate on the degree of crushing of agglomeration fluxes and the relative productivity of the hammer rotary crusher DMRiE 14.5×13 was determined. Based on the results of experimental studies of the crushing process of blast furnace limestone, it was found that after replacing a complete set of hammers, when the wear limit of their working surfaces of the strikers is reached, the degree of crushing of agglomeration fluxes and the relative productivity of the crushing complex increases by an average of 1.7 and 2.3 times, respectively; after replacing a set of grate grates, these indicators increase by 2.1 and 2.5 times, and after replacing the bump plate – by 1.1 and 1.2 times. At the same time, it is noted that the technical condition of the working surface of the impact working bodies and the grate has the greatest impact on the efficiency of the crushing process of the material in the hammer crusher.

keywords Agglomeration production, crushing, sinter fluxes, hammer crusher, hammer wear, grate wear, jack plate wear, relative productivity, degree of crushing of the material

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