Archives of Acoustics

Morkun, Vladimir; Morkun, Natalia; Tron, V.V.; Hryshchenko, Svitlana; Serdiuk, Oleksandra; Dotsenko, Irina

doi:10.24425/aoa.2019.126362

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…As is seen from table 1, physical and mechanical properties of the rocks are wide in range. According to the geological data [1,21,22], the rich ores are of hematite composition and differ only in the number and proportion of mineral varieties [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the technology of caved ore drawing from the ore deposit footwall “triangle”

Pysmennyi,

Chukharev,

Peremetchyk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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In mining iron ore, over 60% of underground mines at Kryvyi Rih iron ore basin apply a system with the bulk caving of ore and overlying rocks. However, when the deposit dip is 45-60 degrees, application of this mining system leads to losses of about 30-40% of the footwall ore. Available methods of the loss reduction result in an increase in production costs or a decrease in the iron content in the mined ore mass. After analyzing the mechanism of forming the figure of drawing, it is proposed to change its parameters without significant costs due to the use of an inclined plane and an overcompacted ore layer. The presented study enables stating that with an increase in the inclined plane angle from 45 to 75 degrees the draw crater radius increases from 2 to 7.5 m, and a decrease in the factor of first loosening of ore leads to an increase in the radius of the crater to 10 m. Thus, for the first time it is proved that a decrease in the first loosening factor leads to the increased semi-minor axis of the ellipsoid of drawing and the width of the active drawing area, which will reduce losses of caved ore when drawing it from the stoping block in the footwall area. It is established that in order to minimize losses and dilution of ore when using level mining systems, the drawpoint should be located in the block sill at a distance ensuring formation of the 20 to 25 m high ellipsoid of drawing. In case of an overcompacted 22 m thick ore layer, it is possible to significantly reduce ore losses from 14 to 10% and ore dilution from 16 to 9%, thereby enhancing ore mass extraction indices without additional costs.

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Section: Introductionmentioning

confidence: 99%

Enhancement of the technology of caved ore drawing from the ore deposit footwall “triangle”

Pysmennyi,

Chukharev,

Peremetchyk

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Sustainable Futures in a Changing World – Reflections from the 5th International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2024)

Kiv,

Semerikov,

Nechypurenko

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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This paper presents an overview of the 5th International Conference on Sustainable Futures: Environmental, Technological, Social, and Economic Matters (ICSF 2024), held in May 2024. The conference brought together over 250 researchers, practitioners, and educators from 19 countries to share cutting-edge research and innovative solutions across a wide range of sustainability-related disciplines. The proceedings cover diverse topics, including climate change, disaster risk reduction, sustainable infrastructure, education for sustainability, environmental engineering, and sustainable business practices. Key themes that emerged include the integration of digital technologies in sustainability efforts, the impacts of global crises on sustainable development, and the importance of interdisciplinary approaches. The conference showcased both theoretical advancements and practical applications, with a particular focus on addressing the United Nations Sustainable Development Goals. This overview highlights the conference’s role in fostering global dialogue and collaboration to address pressing sustainability challenges and shape a more sustainable future.

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Formation of Information Base for Controlling Settlement of Solid-Phase Ore Slurry Particles in a Thickener

Morkun

Tron

et al. 2023

Acta Mechanica Et Automatica

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Thickeners are process units that are often used at mining enterprises. There, they are involved in dehydration of mineral concentration products when water is removed from wet tailings containing metal concentrates. In mineral processing, large quantities of process water are used to separate different minerals from each other, so dehydration plays a major role in ore processing and preparation for concentration. This research aims to develop methods and tools of ultrasonic measurement of characteristics of settlement of solid-phase slurry particles and to assess their possible application to the automatic control system of the thickener to improve its efficiency.

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Archives of Acoustics

Cited by 3 publications

References 15 publications

Enhancement of the technology of caved ore drawing from the ore deposit footwall “triangle”

Enhancement of the technology of caved ore drawing from the ore deposit footwall “triangle”

Sustainable Futures in a Changing World – Reflections from the 5th International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2024)

Formation of Information Base for Controlling Settlement of Solid-Phase Ore Slurry Particles in a Thickener

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