Power Law Model for Reliability Analysis of Crusher System in Khoy Cement Factory

The first step of the cement making process is crushed limestone by crusher system. The performance of this system is affected by maintenance, the operating environment, efficiency, the operation process, the technical expertise, transporting material, distance, failures and etc. On the other hand, according to high costs of keeping these systems in operational mode and existence of complex connections between different subsystems, carrying out proper maintenance become more and more important. The purpose of this paper is to discuss operational and maintenance challenges by assessing system reliability. The required data (time between failures (TBF)) for statistical analysis were collected and sorted in chronological order from two main data sources that consisted of daily operation and production reports and maintenance reports for 81-month periods. Then, reliability-based maintenance was considered to achieve the %09 level of reliability performance. Based on this critical level, 52.74 hours are suggested as PM intervals. Analysis of the effect of this strategy indicated 8.1 times improving efficiency of the fixed capital

Keywords:

Crusher system , Maintenance , Reliability , Time between failures , Power law model