Open-cut mining is the main way to extract minerals. Up to 80 % of the rock mass produced by that is transported by dump trucks with diesel engines. Atmospheric gas pollution is an essential disadvantage of using diesel vehicles, especially in deep formations. Exhaust gases from diesel vehicles have a detrimental effect on human health and the environment. Constant exposure of exhaust gases on the body can cause immune deficiency, bronchitis, cerebral vessels and nervous system suffer. The higher the depth of mining the higher the concentration of machinery on formations and the worse the conditions of natural ventilation of the working space. At the depth of quarries over 200-250 m air pollution by harmful substances at the workplace leads to a gradual increase of the maximum permissible concentrations. That affects both people and economy of the enterprise since it entails the necessity to shut the career down, deteriorate visibility on the highway, which also causes a partial or total suspension of equipment operation. Transfer of dump trucks to electricity is a prospect way to solve the problem. Together, all the positive qualities of trolley trucks reduce the maintenance costs of transportation of rock mass by 15-20 %, as well as exclude the gassing of the quarry and formation of smoke. Need for power from the contact network is the most serious drawback of trolley truck. Today, thanks to modern technologies, eliminating most of the drawbacks of trolley trucks is not difficult. Quarry trolley trucks are better used only for long-term development, since the content of the trolley line contact requires attendance and maintenance. The payback period can be 2-4 years.
Since the beginning of the civilization emergence, people began to use the minerals extraction on the surface of the Earth and the rock mass transportation. One of the main tasks of the mining industry is the transportation of an increasing rock mass amount from the quarry, which has caused the need to increase the power and carrying capacity of mining dump trucks. Today, we can assume that the revolutionary period of increasing the carrying capacity in the creation of heavy-duty dump trucks is over. Further improvement of the designs of frame dump trucks is impractical. To create super-powerful dump trucks capable of efficiently transporting rock mass from deep horizons, fundamentally different designs of machines and power plants are needed. The most important requirement for promising machines is to minimize the negative impact on the environment. In its development, mining vehicles have come a long way: a hand wheelbarrow - a horse cart - a truck - a diesel mining dump truck - a diesel-electric mining dump truck - an electric mining dump truck - an unmanned electric mining dump truck. According to the law of the transition from quantity to quality, it can be assumed that the period of increasing the carrying capacity of mining dump trucks has ended (quantitative changes), and a new period of qualitative changes begins (the development of new types of mining transport, an increase in the specific capacity of a power plant, the use of other energy carriers, etc.). An important area is the use of artificial intelligence: robotic dump trucks, self-diagnostic systems, etc. The main requirement for promising machines is to reduce the cost of transporting rock mass and a minimum negative impact on the environment.
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