In unserer Arbeit haben wir verschiedene Schritte unternommen, um die Ausfallprobleme in der Ouenza-Mine zu analysieren und zu lösen, wobei wir uns auf drei Maschinen (Lader, LKW und Bulldozer) konzentrierten. Zunächst untersuchten wir die Ausfallhistorie jeder Maschine gründlich. In einem zweiten Schritt wandten wir das Pareto-Gesetz an, um die Ausfälle zu priorisieren. Dies zeigte uns, dass mechanische Ausfälle den höchsten Prozentsatz unter den verschiedenen Arten von Ausfällen ausmachten. Daher konzentrierten wir unsere Bemühungen auf diese Kategorie. Unser Hauptziel bei dieser...

The main purpose of safety is to eliminate unacceptable risks that could cause physical injury, harm to human health, or even death, damage the environment, and cause costly production losses. This also involves methodologies to be followed and technical resources to be deployed. To this end, an international standard has been established: IEC 61508. This is a guidance standard, which means that it leaves it up to the user to carry out their own risk analysis and suggests ways of reducing risk. It focuses more specifically on safety systems, whether electrical, mechanical or hydraulic. The...

Conveyor belts are one of the most important components of conveyors, widely used in mines and heavy industries to transport bulk materials over long distances. In Algeria, conveyors are essential for transporting materials in mines, but they often face problems such as conveyor belt failure, contamination, excessive wear and tear, mechanical failures and tension issues. This book discusses conveyor belt transport, using the belt conveyor at the El Ma Labiod cement plant as a case study. In particular, the context of this book is the problems of conveyor belt wear and the proposal of...

In our work, we undertook a number of steps to analyze and resolve failure problems at the Ouenza mine, focusing on three machines (loader, truck and bulldozer). Firstly, we took a close look at the failure history of each machine. Secondly, we used Pareto's law to prioritize the failures. This revealed that mechanical failures accounted for the highest percentage of the various types of failure. We therefore concentrated our efforts on this category. Our main objective in this study was to reduce costs by minimizing faults and increasing machine reliability and productivity. Thanks to our...