Environmental improving the utilization of dump trucks in the compostion of supply truck train at open-pit mining

Kolga, Anatoly; Moskovka, Evgeny

doi:10.18503/2222-9396-2016-6-1-55-57

Cited by 3 publications

(2 citation statements)

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“…Scientific research has been carried out on many issues of improving the technology of mining, dedicated to improving the safety and intensity of mining operations, which is ensured by the use of the conveyor transport [5][6][7][8]. Cyclic-flow technology, along with the conveyor transport, involves the use of vehicles to deliver rock mass to the transfer point to the conveyor [9][10].…”

Section: An Apron Conveyor With Linear Drivesmentioning

confidence: 99%

Determining Basic Geometric Parameters of the Apron Conveyor Drive

Moldabayev,

Rozhkov,

Balabayev

2023

Communications

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The article provides an analysis of the classical design of the apron conveyor, which revealed the significant disadvantages. The study is devoted to the improvement of the plate conveyor design, which would provide an increase in the speed and performance of the conveyor, and allow to create conveyors of any required length and installation angle. As a result of the research work, the following are determined: dependencies of the value of the specific traction force of the drive on the power of the engine and the value of its relative pole division; dependence of the active area of the linear asynchronous motors [LAM] on its power and conveyor speed; dependence of the distance between the intermediate drives on the power of the drive and the angle of installation of the conveyor.

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Section: An Apron Conveyor With Linear Drivesmentioning

confidence: 99%

Determining Basic Geometric Parameters of the Apron Conveyor Drive

Moldabayev,

Rozhkov,

Balabayev

2023

Communications

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“…Particular principles aimed at the development of individual MTS subsystems, including the OOS include principles of cyclic-flow technology in the development of deep open pits [51], the principle of formation of the opening scheme [52], the principles of formation of freight flows [53], based principles of high angle conveyors [54], principles of transport operation [55,56], principles of determining the moment of transition to a new mode of transport in the development of deep open pits [57], principles of the formation of transport systems of deep open pits [58], principles of modeling excavator-truck-conveyor complexes [59], and principles for mine closure planning [60].…”

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confidence: 99%

Sustainable Open Pit Mining and Technical Systems: Concept, Principles, and Indicators

2021

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Sustainability of the open pit mining and technical system (MTS) is one of its key goals in the changing conditions of the external and internal environment. All MTS’s subsystems must function in concert to achieve this goal. The structure of the MTS is formed by many subsystems and elements, which are evaluated by a significant number of indicators. A comprehensive assessment of the MTS for all possible indicators is a complex and time-consuming task. However, each subsystem and element of the MTS has a different effect on the sustainability of this system. The MTS’s parameters change significantly during transition periods, for example, at a new stage of open-pit mining or when switching to an open-underground method of developing mineral deposits. The MTS’s sustainability declines during the transition periods. Changes in the parameters of technological processes during these periods can have a negative impact on the state of the economic and social subsystems of mining enterprises, as well as on the environment. Ensuring the sustainability of an MTS during transition periods requires the development of new approaches and principles for managing the work of mining enterprises, based on the alignment of economic goals, with goals in the field of ecology and social development. The study substantiates the key role of one of the MTS subsystems—the opening-up of an opencast system (OOS). It is shown that this system has a decisive influence on sustainable functioning and development. The systematization of the principles of sustainable functioning and development of mining enterprises and its systems has been carried out. Four groups of principles are distinguished: system-wide principles of management, principles of development of mining enterprises, principles of MTS development, and principles of the MTS’s subsystem development. The proposed system of principles is based on the idea of a sequential transformation of the subsystems at all stages of design and operation. A feature of the proposal system of principles is the consideration of economic, social, and environmental aspects to ensure the specified parameters for the sustainable functioning and development of mining enterprises. The results of the analysis of the factors of the external and internal environment of the MTS are presented. The parameters and indicators for assessing the sustainability of OOS and MTSs were selected and substantiated. The justified parameters and indicators were ranked using the fuzzy Analytic Hierarchy Process (AHP). The results of the assessment showed a high convergence of expert opinions on a group of economic parameters, which were rather high in technical and technological parameters. However, there is a divergence of expert opinions on social and environmental parameters. As a result of the study, it was concluded that the current management decisions are aimed at ensuring the economic and technological sustainability of MTS functioning, while achieving the goals of sustainable development of this system is not ensured. The methodology developed and presented in the study can be used to assess the sustainability of the functioning and development of MTSs.

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Efficiency Increase Potentialities of Excavator-Motor Car Complexes in Open Pit Mining

Podbolotov¹,

Podbolotov²,

Кольга³

et al. 2018

Bulletin of Bryansk State Technical University

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Приведен анализ работы экскаваторноавтомобильных комплексов в карьерах и рассмотрены возможные пути повышения эффективности их использования. Установлено, что одним из путей повышения производительности может стать уменьшение времени загрузки автосамосвалов за счет сокращения числа циклов погрузки экскавато-ра, на основе применения мощных экскаваторов (с большим объемом ковша) и автосамосвалов небольшой грузоподъемности. Ключевые слова: автосамосвал, экскаватор, производительность, грузоподъемность, время цикла, объем ковша, объем кузова, выносные опоры, открытые горные работы.

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Environmental improving the utilization of dump trucks in the compostion of supply truck train at open-pit mining

Cited by 3 publications

References 0 publications

Determining Basic Geometric Parameters of the Apron Conveyor Drive

Determining Basic Geometric Parameters of the Apron Conveyor Drive

Sustainable Open Pit Mining and Technical Systems: Concept, Principles, and Indicators

Efficiency Increase Potentialities of Excavator-Motor Car Complexes in Open Pit Mining

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