Maintenance decision method considering inspection of mining equipment

Xian Gang Cao,Rui Yuan Zhang,Meng Yuan Zhang,Xiao Lin Jia,Yu Rong Gong,Qingping Yang

doi:10.1051/ijmqe/2021018

Abstract

In coal mining industry, equipment safety and reliability during operation are essential in the production process. In recent years, along with the continuous improvement of intelligent coal mining equipment, reliable production requirements have simultaneously increased. Therefore, this article aims to study the maintenance decision making method that considers the safety inspection of a fully mechanized mining equipment group. The goal is to establish a maintenance decision making model that considers the safety overhaul of fully mechanized mining equipment group in order to minimize the total maintenance, production costs and safety risks. Firstly, the regular safety inspection procedure and the maintenance process were introduced. Then, a model guideline method that considers a fully mechanized mining equipment group's safety inspection was established. Finally, through the comparison of algorithms and maintenance strategies, it is proved that the maintenance decision optimization method proposed in this paper is of great significance for improving equipment reliability, improving comprehensive operation rate, reducing maintenance costs, and ensuring coal mine safety production.

Highlights

The failure of coal mining equipment is one of the most influential factors that restrict the smooth running during the coal mining operation
When maintenance is carried out improperly, it can affect the operation of the entire system, causing unpredictable and immeasurable economic losses and accidents regarding safety
It is evident that the genetic algorithm in this paper reduces the maintenance cost of 1.266 million yuan compared with the heuristic algorithm, and the number of maintenances is reduced from 9 to 6

Summary

Introduction

The failure of coal mining equipment is one of the most influential factors that restrict the smooth running during the coal mining operation. When maintenance is carried out improperly, it can affect the operation of the entire system, causing unpredictable and immeasurable economic losses and accidents regarding safety. Improving the reliability of mining equipment is essential for the safety and sustainability of coal mines production [2]. The Maintenance Decision Making Model is based on the perspective of the system and can be divided into Decision Making Model with a single device as the research objective, or a model with an entire production system consist of multiple devices as the research subject

Objectives

Methods

Findings

Conclusion