Development of a New Environmentally-Friendly Technology for Transportation of Mined Rock in the Opencast Mining

Kuzmin, Sergey; Kadnikova, Olga; Altynbayeva, Gulnara; Turbit, Andrey; Khabdullina, Zauresh

doi:10.2478/rtuect-2020-0019

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Ore delivered from the quarry is loaded into containers, which are transported directly to the unloading site by lifting machines. The containers are equipped with the ability to self unload, as a result of which the rock mass is poured directly into the place of placement on the dump [16].…”

Section: Introductionmentioning

confidence: 99%

Container technology for transporting rock masses in quarries

Sładkowski,

Kuzmin,

Utegenova

et al. 2024

Nauk. visn. nat. hirn. univ.

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Purpose. To justify and develop the theoretical bases of the formation and operation of the container technology for moving mining mass from quarries, which ensures a reduction of economic and energy costs, as well as damage to the environment during the extraction of mineral resources. Methodology. The work used complex research methods, including analysis and scientific synthesis of scientific and technical information; theoretical research; methods of mathematical and computer modeling, and design developments. Findings. The analysis of existing technologies for open-pit mining and the current state of mining indicates an urgent need to develop new resource-saving technology and environmentally friendly technologies for moving rock mass for open-pit mining. A new technology for container transportation of rock mass in containers is proposed without the construction of additional transport communications in the quarry and has technological and energy-saving advantages. Originality. The scientific novelty of the research consists of an integrated and systematic approach to assessing the energy efficiency and environmental safety of the proposed set of equipment for container technology for transporting rock mass. Practical value. In this work, special attention is paid to the problem of the formation and effective use of a new resource-saving and environmentally friendly container technology for moving rock mass from deep quarries. These advantages are simultaneous excavation of rocks, transportation of rocks over the shortest distance, low container packing ratio, and mobility of a complex of lifting machines, which will reduce energy consumption and the cost of transporting rock mass. A transport complex has been developed to ensure the reliable operation of lifting and transport machines.

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Section: Introductionmentioning

confidence: 99%

Container technology for transporting rock masses in quarries

Sładkowski,

Kuzmin,

Utegenova

et al. 2024

Nauk. visn. nat. hirn. univ.

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“…Thus, the main problem of deep open pits is transportation. Modern trends in the development of traditional transportation technology lead to a reduction in the mined ore reserves, an increase in the unit value of 1 ton-km of road transportation, an increase in atmospheric pollution and a reduction in the open-pit production capacity [36]- [38].…”

Section: Introductionmentioning

confidence: 99%

Substantiation and development of innovative container technology for rock mass lifting from deep open pits

Khussan¹,

Abdiev²,

Bitimbayev³

et al. 2022

Min. miner. depos.

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Purpose. The research purpose is to substantiate the rational parameters of innovative container technology for transporting mine rocks in open pits with account of technological advantages. Methods. The winding machine normal operation was determined by calculation performed. The container metal structure was designed in the environment of the Compass-3D software complex. The structural elements were tested for normal operation using computer modeling methods in the APM WinMachine 9.7 program, which gives the possibility to obtain the strength calculation values. Findings. The results of modeling the stresses on the wall of the container and the frame, as well as the yield strength are presented. The test calculation confirms the technical feasibility for operating the dragline-based mine winding machines. The influence of the container capacity on the performance of the winding machine has been determined and the dependence of the economic efficiency of the container technology introduction at the open pit depth has been revealed. Originality. For the first time, on the basis of computer modeling, the parameters of stress distribution on the container wall have been substantiated when performing a strength calculation. It has been determined that the maximum stress in the container wall is 117.52 N/mm2; the principal stress value is 83.85 N/mm2. The safety factor for yield strength is 1.8. The maximum load acting on the structure is 957.5 kgf, which does not exceed the calculated value. Practical implications. The practical importance is to improve mining efficiency, reduce the cost of transporting rocks and ensure automatic container unloading. The use of replaceable containers in open pits can significantly change the formation principles of shovels and transport complexes, increase their performance and the efficiency of shovels in the main processes.

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“…The main way to fulfil this requirement is obvious: it is necessary to reduce the intensity of technogenic impact on the surrounding rock mass to the minimum acceptable level, which would ensure, on the one hand, a sufficient degree of preservation of the marginal mass, on the other hand, sufficient produce-ability of drilling-and-blasting operations. To ensure the pit side stability, technologies of the contour blasting operations have been developed, which make it possible to suppress the effect of an explosion on rocks [11]- [15], as well as a number of mining technologies that make it possible to reduce the impact of technological equipment on the open pit permanent side [16], [17].…”

Section: Introductionmentioning

confidence: 99%

Research into influence of drilling-and-blasting operations on the stability of the Kusmuryn open-pit sides in the Republic of Kazakhstan

Hussan¹,

Takhanov²,

Kuzmin³

et al. 2021

Min. miner. depos.

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Purpose. Research into influence of drilling-and-blasting operations on the nature of deformation in near-side masses of the design open-pit contours and assessing the seismic impact of blasting operations, which are the basis for development of recommendations on the rational parameters of drilling-and-blasting operations. Methods. The influence of drilling-and-blasting operations at the limiting contour of the Kusmuryn field is studied using the analysis of the mining-and-geological conditions and tectonics of the rocks constituing the field, in-situ surveying the state of the open-pit sides, analysis of the physical and mechanical properties of the host rocks, analytical studies and instrumental measurements of the blasting effect. Findings. Based on the analytical methods, the calculation and analysis of the seismic stability of the rocks at the field have been performed. By means of instrumental measurement of the blasting effect in open pit, data have been obtained on the seismic impact of blasting operations on the near-side masses. According to the results of these works, rational parameters of drilling-and-blasting operations at the limiting contour of the open pit have been determined. In addition, the main provisions for the organization of drilling-and-blasting operations at the limiting contour of the open pit have been developed. Originality. In this work, for the first time, a joint research method is applied, which includes an analytical calculation of the shock wave seismic impact on a rock mass, based on the results of which the dependency graphs have been obtained of the seismicity coefficient on the rock hardness coefficient at the Kusmuryn field according to the Protodyakonov scale for various explosives, as well as using the method of instrumental measurements, which serves to determine the seismic impact of an explosion on a rock mass. This makes it possible to substantiate the technology of conducting the drilling-and-blasting operations at the contour, providing a long-term stable position of the permanent side of the open pit. Practical implications. The results of the work will be used to calculate the safe parameters of conducting the blasting operations when placing the side in the final position at the Kusmuryn field. This research method can be applied at any mining enterprise conducting open-cut mining of minerals.

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Development of a New Environmentally-Friendly Technology for Transportation of Mined Rock in the Opencast Mining

Cited by 10 publications

References 17 publications

Container technology for transporting rock masses in quarries

Container technology for transporting rock masses in quarries

Substantiation and development of innovative container technology for rock mass lifting from deep open pits

Research into influence of drilling-and-blasting operations on the stability of the Kusmuryn open-pit sides in the Republic of Kazakhstan

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