Ecological and economic evaluation of quarry trolley trucks

Abstract

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.

Multi-Criteria System’s Design Methodology for Selecting Open Pits Dump Trucks

“…Especially relevant are the issues of the negative impact of equipment operation on the atmosphere in deep open pits. The main negative impacts of open pit equipment are emissions from the operation of dump truck engines and dust during the transportation of rocks [15]. Dump trucks account for 60% to 75% of emissions (Figure 3).…”

Study of the Composition of Exhaust Gas of Dual-Fuel Gas-Diesel Belaz 75131 Mining Dump Trucks

“…Ежегодно мировой горнодобывающей промышленностью потребляются миллиарды литров дизельного топлива, причем 70-80% общего объема топлива потребляют нагруженные самосвалы на подъемах при относительно малой скорости движения. Это приводит к значительному выбросу в атмосферу вредных (токсичных) веществ: оксидов углерода, азота, углеводорода, альдегидов, свинца, сажи, оксидов серы [2][3][4].…”

“…УДК 622.23.05 Богомолов Александр Романович 1,2,* , доктор технических наук, доцент, Азиханов Сергей Сейфудинович 1,2 , кандидат технических наук, доцент, Дубов Георгий Михайлович 1 , кандидат технических наук, доцент, Григорьева Елена Анатольевна 1 , старший преподаватель, Нохрин Сергей Алексеевич 3 , заместитель генерального директора по газификации автотранспорта 1 Кузбасский государственный технический университет им Т.Ф. Горбачева, 650000, Россия, г. Кемерово, ул.…”

“…Горбачева, 650000, Россия, г. Кемерово, ул. Весенняя, 28 2 Институт теплофизики имени С.С. Кутателадзе СО РАН, 630090, Россия, г. Новосибирск, проспект Академика Лаврентьева, д.…”

Method for installing cryogenic fuel tanks on the deck of BelAZ 7513 mining dump truck

“…Liquefied natural gas is a fuel that is significantly cheaper than diesel. The technology of using liquefied natural gas as a partial replacement of diesel fuel does not require complex and time-consuming re-engineering of internal combustion engines, which makes this technology economically feasible for use in mining trucks; reduces the environmental burden; increases the energy performance of the rock mass hauling process [7][8][9].…”