Substantiation of the hydrodynamic disintegration of hydraulic fluid’s mineral component of high-clay sand in precious metals placers

Khrunina, N.P.; Cheban, A.Yu.

doi:10.18599/grs.2018.1.51-56

Cited by 2 publications

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“…Developed a mathematical model of the process of formation of small particles mineral component of hydrosmesi in the field of hydrodynamic impact, initiated by ultrasound, as well as cavitation caused by hydrodynamic effects initiated by the use of installations [6][7][8][9][10][11][12][13], shows that the specific interphase surface of particles is expressed by dependence on the intensity of the energy emitted, the specific surface energy of the particles, the wave resistance of the hydrosmesi, the dissipation loss of the -distances from the source of radiation or cavitation, energy absorption by the environment, circular frequency of sound wave or cavitation, heat capacity and thermal conductivity, shift viscosity, volume viscosity, as well as the design features of the installation related to the efficiency of its operation.…”

Section: Theoretical Justification For the Formation Of Small Particlmentioning

confidence: 99%

Theoretical basics of process of the dispersal system correction

Khrunina

Korneeva

2020

E3S Web Conf.

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Factors analysis, determining the stability of mineral dispersal systems during disintegration was done. A mathematical model of the process of formation of small particles of the mineral component of hydromineral mixture in the field of hydrodynamic influence is presented, initiated by cavitation. The identified basic dependency options allowed, experimental studies of the disintegration of mineral particles, using electron microscopy to control the process and assess its effectiveness. Developed ideas about structural and mechanical features of mineral hydro-mineral mixture taking into account thermodynamic potential, the preconditions are not only theoretical justification for the process, but also the development of applied research in the development of technologies and means of processing and enrichment minerals in environmentally friendly ways.

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Section: Theoretical Justification For the Formation Of Small Particlmentioning

confidence: 99%

Theoretical basics of process of the dispersal system correction

Khrunina

Korneeva

2020

E3S Web Conf.

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“…Для обоснования процессов дезинтеграции минеральной составляющей гидросмеси в условиях резонансных акустических явлений в гидропотоке и определения технологических и конструктивных параметров систем, моделирующих кавитационные и гидродинамические эффекты, из всего многообразия подходов к решению поставленной задачи необходимо выявить факторы, влияющие на характер протекания процесса [18][19][20]. Гидросмесь при дезинтеграции представляет собой жидкость с твердыми включениями.…”

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Influence of hydrodynamic effects on dispersoid structural changes under microdisintegration

Khrunina

2022

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The purpose of the presented study is to give a theoretical substantiation of the formation process of a high-clay sand dispersoid from placers with a high content of fine and finely dispersed gold under changing hydrodynamic parameters of the hydro mixture flow by means of enclosing and reflecting surfaces of the proposed installation. The object of the research is the process of hydrodynamic disintegration. The subject of the study includes the main parameters of the hydrodynamic effect on the mineral environment and the destruction nature of high-clay sands under hydrodynamic conditions. While doing the research, the author used the methods for constructing a mathematical model of dispersoid transformation under hydrodynamic effect on the hydro mixture, analytical and numerical calculations. The analysis of the aspects of hydrodynamic phenomena and interactions made it possible to substantiate the dispersoid formation process based on the intensification of microdisintegration and to identify the characteristic impact factors as well. Based on the theory of changes in the thermodynamic potential of the system of particle surfaces under dynamic exposure, a method has been proposed for determining the hydrodynamic variation parameters of the hydromixture structural component in the closed cavity of the generator when interacting with the elements of the enclosing and reflecting surfaces. The performed numerical calculations allowed to reveal a significant increase in the specific interphase surface of the dispersoid of the mineral component. The interaction of the elements of enclosing and reflecting surfaces according to the proposed innovative layout of elements location in the generator under the directed supply of the hydromixture from the nozzle into a closed cavity resulted in the increase from 3 to 4 times. A new design of a hydrodynamic generator and a flow diagram have been introduced on order to activate the extraction process of microparticles of valuable components.

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Substantiation of the hydrodynamic disintegration of hydraulic fluid’s mineral component of high-clay sand in precious metals placers

Cited by 2 publications

References 0 publications

Theoretical basics of process of the dispersal system correction

Theoretical basics of process of the dispersal system correction

Influence of hydrodynamic effects on dispersoid structural changes under microdisintegration

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