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Reliability Analysis of Armored Face Conveyor (AFC) in Tabas Mechanized Coal Mine
| Content Provider | Semantic Scholar |
|---|---|
| Author | Morshedloo, Amid Dehghani, Hesam Hoseinie, Hadi |
| Copyright Year | 2014 |
| Abstract | Regarding the importance of coal in power generation, many attempts have been made to increase the coal production. Nowadays, the extraction operation in underground mines is done by mechanized method. Therefore, determination and improvement of the machinery performance is very important. Armored Face Conveyor (AFC) is one of the most important machineries in underground mines, which has a direct role in production. Hence, reliability of this machine is very important. In this paper, the reliability of AFC machine has been analyzed using the 2 years’ failure data which had been collected from Tabas coal mine. Four subsystems were defined for this machine; electrical system, mechanical system, chain tension unite, speed control unite. Then, data sets were tested view point of the existence of trend and serial correlation. The best distribution function was selected based on the result of various statistical processes. The results shows that the electrical and chain tension unites obey the power low model and mechanical system has the 3parametrs Gamma reliability function. The speed control unite obeys the 4-parametrs Gamma Genralized distribution an d the reliability of whole machine decrease to almost zero after 100 operation hours. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.diva-portal.org/smash/get/diva2:1012549/FULLTEXT01 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
