Analyzing vibration effect on amber buoying up velocity

Malanchuk, Zinovii; Корнієнко, В. І.; Malanchuk, Yevhenii; Moshynskyi, Viktor

doi:10.1051/e3sconf/201912301018

Cited by 9 publications

(7 citation statements)

References 36 publications

(10 reference statements)

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“…The mechanism fragments rock, using repetitive compressive deformation with shear rather than simple crushing. In this context, silicate share is flaked off from copper nuggets, rolling into balls, ellipsoids or small sticks, making it possible to separate them later by means of grading with the help of a vibratory screen [51].…”

Section: Resultsmentioning

confidence: 99%

Regularities in the distribution of granulometric composition of tuff while crushing

Malanchuk¹,

Moshynskyi²,

Denisyuk³

et al. 2021

Min. miner. depos.

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Purpose is to analyze distribution of granulometric composition of tuff as well as ultimate composition and identify dependence of its softening in the process of water saturation based upon a set of experiments to assess raw materials importance of the mineral. Methods. Laboratory experiments were carried out to determine ultimate composition of tuff extracted from different open pits of the region. Methods of mathematical statistics were applied to derive analytical dependences describing the tuff softening in the process of water saturation. The dependences denote logarithmic nature of the saturation increase along with the increase in the sample weight. Findings. It has been determined that tuff is a valuable mineral rather than basalt extraction waste. Thus, tuff needs both mining and complex approaches for processing and extracting of useful metals and silicates. Analytical dependences of tuff softening during water saturation have been defined. The dependences denote logarithmic nature of the saturation increase based upon a sample weight increment. Magnetic susceptibility of tuff, turned on magnetic field induction, has been identified. Dependences of distribution of technological indices (i.e. product yield, copper content and yield) in terms of granulometric-size class have been identified; the basic factors for crushing process have been determined; and regression dependences of grinder efficiency upon the input factors have been derived. Regression model of a crushing process of a general technological scheme of ore processing has been obtained involving the initial fragmentation using a jaw crusher, and additional fragmentation (i.e. reduction) using a sizer. Originality.It has been determined that magnetic susceptible tuff share is 49% of the sample weight; the remaining part is a silicate share. Logarithmic nature of the analytical softening dependences while water saturating has been identified. The above-mentioned denotes the increased saturation along with the increase in a sample weight. Practical implications. The definition of tuff ultimate composition as well as analytical softening dependences in the process of water saturation makes it possible to calculate the required water consumption. Keywords: tuff, basalt, softening, water saturation, silicate, magnetic susceptibility, ultimate composition, crushing

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Section: Resultsmentioning

confidence: 99%

Regularities in the distribution of granulometric composition of tuff while crushing

Malanchuk¹,

Moshynskyi²,

Denisyuk³

et al. 2021

Min. miner. depos.

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“…Mechanical impact causes the soil to settle and lie under a layer of sandy-clay material. Additional moistening with technological waters increases the level of groundwater over a long period of time [7][8][9].…”

Section: Negative Environmental Consequences Of Illegal Amber Miningmentioning

confidence: 99%

Increase of forest plantations productivity in places of illegal amber mining of western Рolissia

Fizyk,

Zaiets,

Vasylchuk

et al. 2024

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The article reveals the problem of illegal amber mining in Ukraine, its negative impact on natural resources and increasing the productivity of forest plantations in both communal and state-owned forests. The main reasons for this phenomenon are considered: relative ease of access to amber deposits, their remoteness from populat-ed areas, and the difficult accessibility of territories due to wetlands and dense affor-estation. The article notes the important role of forests, especially in the Polissia region, in ecosystems and emphasizes their ecological importance. It is noted that forests perform a variety of functions, such as sanitary and hygienic, water protection, recreational, sanative, educational and aesthetic. The importance of forest areas for the preservation of rare species listed in the Red Book of Ukraine is noted. The main focus is on the economic and environmental consequences of illegal amber mining. A large number of persons engaged in unauthorized mining is indi-cated, which leads to serious economic losses for the state and society. Emphasis is also placed on the need for reclamation of disturbed areas as a way to restore natural biotopes and improve the ecological situation. The article calls for effective measures from the state and the public to solve the problem of illegal amber mining, in particular through the implementation of recla-mation projects and increased control over the use of natural resources.

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“…Mechanical impact on soil is its subsidence and burial under a layer of sandy-clay material. Excessive additional wetting with process water leads to a long rise in the groundwater level [7][8][9]. As a result, the root system of the trees is incapable of keeping them in equilibrium in sparse sandy soil.…”

Section: Fig 3 Vegetation In the Rivne Region After Illegal Extractmentioning

confidence: 99%

Reclamation of Destructed Lands Owing to Illegal Amber Production in Northern Regions of Ukraine

Korniyenko¹,

Chukharev²,

Zaiets³

et al. 2020

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This section analyses the state of disturbed lands as a result of the illegal extraction of amber in the Rivne region. The general characteristics of the territories and the negative consequences of illegal amber production are given. Were analysed and found possible future composition of vegetation of specific Dubrovytsky forestry area. The main stages and directions of reclamation of disturbed lands are considered. As a result of the analysis of literary sources and archival data, possible options for reclamation on the disturbed lands were suggested. It has been established that conducting a complete reclamation of sites damaged by illegal amber production is the only technically available method, given the nature and extent of the violation of these lands. It has also been found that the pilot-industrial extraction with 100% the extraction of the remaining amber is a prerequisite for preventing the repeated illegal intervention of the diggers on the reclaimed land. It is established that after the completion of the pilot-industrial extraction and technical reclamation it is necessary to conduct additional ecological and economic assessment of the disturbed territories in order to further extract amber, forestry and use for agricultural production

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Analyzing vibration effect on amber buoying up velocity

Cited by 9 publications

References 36 publications

Regularities in the distribution of granulometric composition of tuff while crushing

Regularities in the distribution of granulometric composition of tuff while crushing

Increase of forest plantations productivity in places of illegal amber mining of western Рolissia

Reclamation of Destructed Lands Owing to Illegal Amber Production in Northern Regions of Ukraine

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