Abstract

More than 50-60% of minerals in Russia and the CIS countries are mined in an open-pit or in mining quarry, as it is the most economical and productive. JSC "CC Kuzbassrazrezugol" ranks second in terms of total coal production among the regions of the Russian Federation and first in Kuzbass. Quarry dump trucks are the main mode of technological transport when transporting mined rock. An important task facing road transport is to reduce the cost of transported products. The components of the costs include fuel, tires, maintenance and repair, maintenance of roads and others. It is possible to reduce tires costs by controlling tires life. Most often, thermal damage causes the emergency decommissioning of tires. It is possible to maintain the optimal temperature regime of quarry dump truck tires with the help of operating modes such as load capacity utilization factor and speed, as well as operating conditions such as ambient temperature and longitudinal slope of the road. In turn, the performance of quarry dump trucks directly depends on the operating modes. On the one hand, the growing utilization factor of load capacity and speed increase the productivity of quarry dump trucks, but at the same time this increases the temperature regime and reduces their reliability. This article proposes a methodology for determining the maximum productivity of quarry dump trucks operated in CC Kuzbassrazrezugol taking into account the temperature regime of tires.

Highlights

  • Despite the global trend to reduce the use of hydrocarbon, including solid fuels, coal is widely used in various industries, both in the Russian Federation and abroad

  • Ambient air temperature and longitudinal slope of the road are factors which are taken into consideration, and coefficient load capacity use and average operating speed are controlled factors for thermal condition of tires and main components of capacity of dump trucks

  • The lower the coefficient load capacity use and the speed, the lower the tire temperature, but there is a low output of the quarry dump truck:

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Summary

Introduction

Despite the global trend to reduce the use of hydrocarbon, including solid fuels, coal is widely used in various industries, both in the Russian Federation and abroad. The costs associated with the operation of mine dump trucks exceed the costs of other technological transport types and the efficiency of their operation has a significant impact on the cost of the coal mining process.

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