Research results proving the dependence of the copper concentrate amount recovered from basalt raw material on the electric separator field intensity

Naduty, Vladimir; Malanchuk, Zinovii; Malanchuk, Yevhenii; Korniyenko, Valerii

doi:10.15587/1729-4061.2016.79524

Cited by 24 publications

(18 citation statements)

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“…The zeolite-smectite tuff-stones of the Rafalivskyi basalt quarry have been studied by sieving of 1 m 3 dump tuff-stone mass through vibratory screen before and after crushing. In this case, an unweakened tuff-stone was tested by several cycles of water application [50,51].…”

Section: Resultsmentioning

confidence: 99%

Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

et al. 2020

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This paper presents the research results of the pulp movement process along the extraction chamber bottom to the suction pipe of the pulp lifting device in case of downhole hydraulic mining the volcanic tuff-stone. The washout process and hydraulically operated transportation of the tuff-stone hydraulic mixture, when forming the extraction chamber, have been studied under various conditions and methods of exposure. As a result, the dominant parameters have been determined influencing the hydrodynamic washout technology as well as tuff-stone hydraulic mixture lifting to the alluviation map. The dependences have been substantiated of the washout process performance and transportation capacity of the hydraulic mixture flow on the determined parameters. To calculate the process of pulp flow-over along the extraction chamber bottom to the intaking hydraulic elevator headwall, the systems of equations have been determined based on the modelling the movement of tuff-stone hydraulic mixture along the extraction chamber bottom during hydraulic washout. The dependences of the contact strength of the tuff-stone samples mined by downhole method on the time spent in water are presented, resulting in determination of the tuff-stone weakening coefficient and the degree of its saturation with water.

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Section: Resultsmentioning

confidence: 99%

Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

et al. 2020

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“…The qualitative parameters of the mine are designed to provide certain quantitative parameters, which, in turn, require appropriate constructive and spatial properties of the qualitative parameters (Naduty et al, 2016;Dreus et al, 2016;Malanchuk et al, 2019b). From this, it follows that the change or replacement of any qualitative or quantitative parameter will affect the other technological parameters of the mine directly interconnected with it in one way or another.…”

Section: Literature Reviewmentioning

confidence: 99%

Multivariance Solutions for Designing New Levels of Coal Mines

Lozynskyi

Medianyk

Saik

et al. 2020

MGPB

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In this article, variants of technological designing of new mining enterprise levels for obtaining the skills of engineering task execution are considered. The complex approach for the justification of a mine's parameters is examined. The combinations of quantitative and qualitative parameters for designing new coal-face and preparation works, transport, ventilation, and draining-out of gases, pumping, and mineral deposits while keeping cost reduction in mind for all stages of mining enterprise operations are presented. The obtained results allow us to lay the foundations for optimizing the parameters of the development system and the rational order for the coal reserves, under the changing mining and geological conditions of coal field deposit development. Conclusions regarding the implementation of the multivariance solutions in new coal mine level designing are made on the basis of undertaken investigations. The obtained results with sufficient accuracy in a practical application can be used to determine the development of new coal mine levels.

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“…Along with zeolites, whose content may vary from 10 to 95 %, the ores contain quartz, feldspar, hydromica, montmorillonite, and other min erals. Clinoptilolite, being the most popular component of natural zeolite puffstones, occurs as three basic cation forms: potassic, sodium, and calciferous [3].…”

Section: Udc 622272mentioning

confidence: 99%

Substantiating parameters of zeolite-smectite puff-stone washout and migration within an extraction chamber

Malanchuk¹,

Moshynskyi²,

Korniienko³

et al. 2019

NVNGU

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SToNe wAShouT AND miGrATioN wiThiN AN exTrAcTioN chAmber Purpose. To substantiate parameters of zeolitesmectite puffstone deposit hydromining method while analyzing dependences between physicotechnological indices of hydromining equipment and rock mass characteristics, which will help optimize the extraction technique. methodology. Complex research approach (i.e. field observations, laboratory tests, and bench testing) is the methodological basis to solve the problem. The approach involves system analysis, physical modeling of hydrodynamic processes, and outcome analysis using MаtLаb mathematical software package. findings. Dependences of zeolitesmectite puffstone failure upon a mouthpiece diameter, water pressure, washout radius, and gravity streaming hydraulic transportation within an extraction chamber have been determined. Effect of kinetic energy of a falling slurry stream on the decrease in the specific power consumption in the process of rock transportation over an extraction chamber floor has been identified. Power consumption dependence upon hydraulic monitor dimensions and working agent pressure is of quadratic nature: the increased pressure of a working agent in front of a mouthpiece, power consumption of the washout increases, and specific water consumption drops. originality. For the first time, an approach to describe zeolitesmectite puffstone failure taking into consideration hydrody namic puffstone washout, hydraulic mixture migration within an extraction chamber, and transportation of the mineral has been applied. Relying upon power consumption to washout hydraulic mixture and transport it within a washout chamber, both linear nature and directlyproportional dependence of transport capacity upon hydraulic monitor loss and chamber floor slope has been determined. Power consumption dependence has been defined for different types of mouthpieces and working agent pressure in order to avoid cuts and layerbylayer washout of a mineral. Practical value. The obtained results can be applied to improve dominating parameters influencing the hydrodynamic process for zeolitesmectite puffstone washout. For the purpose, rational efficiency of puffstone failure has been identified as well as ro tational angle of a lateral mouthpiece of a jet head at 15-20 m height in terms of layerbylayer washout with rock migration over a distance being equal to a half of the washout diameter. Real conditions (for zeolitesmectite puffstones) have been determined under which minor jet velocity variation from the determined parameters results in a cut or in a fall of the washout chamber.

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Research results proving the dependence of the copper concentrate amount recovered from basalt raw material on the electric separator field intensity

Cited by 24 publications

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Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

Multivariance Solutions for Designing New Levels of Coal Mines

Substantiating parameters of zeolite-smectite puff-stone washout and migration within an extraction chamber

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Research results proving the dependence of the copper concentrate amount recovered from basalt raw material on the electric separator field intensity

Cited by 24 publications

References 0 publications

Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

Modelling hydraulic mixture movement along the extraction chamber bottom in case of hydraulic washout of the tuff-stone

Multivariance Solutions for Designing New Levels of Coal Mines

Substantiating parameters of ­zeolite-smectite puff-stone washout and migration within an extraction chamber

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Substantiating parameters of zeolite-smectite puff-stone washout and migration within an extraction chamber