Impact damage to the middle trough of a scraper conveyor based on the engineering discrete element method and orthogonal matrix analysis.

ABSTRACT: The middle trough serves as a key part of a scraper conveyor. During the working process, falling raw coal lands on the middle plate of the trough, causing impact damage. This study aims to find the optimal working condition combination to minimize impact damage to the middle trough based on the engineering discrete element method (EDEM) and orthogonal matrix analysis (OMA). In EDEM software, simulation data of the impact damage depth and normal cumulative contact energy of the middle trough corresponding to the four influencing factors of the transverse laying roll angle, front lean angle, raw coal particle size, and chain layout and spacing under different horizontal conditions are obtained. Matrices of the impact damage depth and normal cumulative contact energy are separately establish

SUBMITTER: Yao Y 

PROVIDER: S-EPMC9015145 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature