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Explosion-type accidents can cause significant human losses and material damages; therefore, special attention has to be granted to explosion risk assessments and to the development of appropriate explosion-protection measures. Such measures of protection aim to reduce the explosion risk to acceptable levels, in compliance with regulations and standards in force, so as to provide the proper safety level for humans as well as to prevent damage to the surrounding goods and environment. The flash-point, explosivity limits and oxygen concentration limit and define the properties of combustion of flammable substances. A certain material all by itself does not represent an explosion hazard, but in contact or in mixture with air may generate an explosion hazard. In this regard, the properties of the air-flammable substance mixture have to be determined. These properties provide information about the reaction to the firing of a substance and whether it can give rise to fire or explosion. The present work examines the protective systems intended to limit the effects of an explosion and proposes an automatic system intended for reducing shock waves that occur as a result of an explosion in an enclosed space. [ABSTRACT FROM AUTHOR]

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This paper presents the modeling and simulation of the sterile rocks excavation process using bucket rotor excavators. The modeling and simulation of the excavation process is carried out in Matlab-Simulink, based on an original mathematical model of the momentary capacity. [ABSTRACT FROM AUTHOR]

Unmanned Ariel Vehicles (UAVs) or drones provide real-time information. This kind of systems have advantages of being able to replace humans working in dangerous and unreachable environments in order to reduce working accidents and avoid casualties. Other benefits of UAVs in mining industry are safety and security, productivity and data field collection. The use of drones in mining has proved to be an ideal way of discovering new areas of interest being a vital tool in the extraction process. Vast areas can now be covered in a short space of time and new data can be available, both of them being more vital now than ever taking into account that raw materials are in short supply and high demand. [ABSTRACT FROM AUTHOR]

The purpose of this paper is, on the one hand, to set the kinematics of the mining extraction system used for the mechanization of well drilling and, on the other hand, o perform calculations to verify the metal structure of the metal tower of extraction system, both by classic analytical calculation as well as by the finite element method. The metal structure of the extraction tower is modeled as a planar frame, which is an unspecified static system loaded with the technological forces that appear in the extraction cable and the mass forces given by the weight of the tower with the Solid Edge utility by 3D modeling. [ABSTRACT FROM AUTHOR]

This paper addresses the study possibility of monitoring conveyor belts using images taken by inspection cameras and analysis of the information accuracy collected by this way reported the real situation. [ABSTRACT FROM AUTHOR]