Эффективность Грохочения При Круговых И Прямолинейных Колебаниях

Вайсберг, Л. А.; Ivanov, K. S.; Baldaeva, T. M.; Otroshchenko, A. A.

doi:10.17580/or.2016.01.01

Cited by 2 publications

(4 citation statements)

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“…They describe the energy conversion in an electric machine and are represented by a system of differential equations, consisting of equations of voltages, and the equations of motion of the movable element of motor at general assumptions for ACD, working in special operation modes [4,5,[14][15][16][17][18]. DFM was implemented on the example of electric machine type 4АК160S8U3 with synchronous rotation frequency n 0 =750 [rpm], power P 2 =5.5 [kW], nominal stator current I n =18.35 [A], η=80 [%], cosφ n =0.76 [4].…”

Section: Resultsmentioning

confidence: 99%

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Special Modes of AC Drives Operation in the Mining Industry

et al. 2017

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Abstract. This paper presents research of special modes of AC drives operation. The possibility of obtaining of vibrational and vibrationalrotational modes of the AC drives on the basis of multipurpose polyharmonic mode of actuating motor operation is shown. Multipurpose electric motor with improved power characteristics (double-fed machine) has been proposed as the actuating motor of the electroactivator of the coal grizzley. The formation algorithm of polyharmonic operation mode of the double-fed machine is developed. This algorithm allows studying different types of special modes of actuating motor. Research results of dynamic parameters of a universal electric motor of the electroactivator of the coal grizzley are presented. The practical significance of the study of using of double-fed machine in the primary coal processing is shown.

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Section: Resultsmentioning

confidence: 99%

“…Formation algorithm of ACD polyharmonic operation mode has been developed; it allows changing the oscillation frequency, phase shift and oscillation amplitude. This method allows to withstand requirements to self-balancing grizzley at the stage of necessary vibrations formation [14][15][16][17][18].…”

Section: Methodsmentioning

confidence: 99%

Special Modes of AC Drives Operation in the Mining Industry

et al. 2017

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“…The probability of a particle passing through the sieve mesh decreases with particle size increasing. Formula (1) is used in many mathematical models to obtain the indicators of separation by size on the screen [8][9][10][11]. Formula (1) is valid for the case of sieving a single particle.…”

Section: Probability Of a Particle Passing Through A Sieve Meshmentioning

confidence: 99%

“…During the modelling, the process of segregation of particles on the sieve, the height of the material layer, and other factors were not taken into account. When using formula (8), it is necessary to determine the number and size of the conditional meshes аl =a-dl, formed when each particle size range passes through the sieve. During modeling, dl was equal to the maximum particle size in the size range.…”

Section: Modeling the Screening Processmentioning

confidence: 99%

The probability of particles screening on the screen, taking into account the interaction of particles over the meshes of the sieve

Pelevin

2020

E3S Web Conf.

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The probability of a single particle screening through the mesh of a screen is usually estimated by the A.M. Goden formula. During screening along a screen sieve, a quantity of particles moves. Particles of different sizes interact with each other. Large particles block the meshes of the sieve and reduce the probability of small particles screening. A screening probability formula is proposed that takes into account the interaction of particles over the sieve meshes and the possibility of several particles passing simultaneously through the sieve mesh. The results of modeling the probability of sieving and screening process are presented. An increase in the fraction of “small” particles in the primary product leads to an increase in the probability of sieving. When the material moves along the screen sieve (from the first to the last row of meshes), the probability of particle sieving decreases.

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Эффективность Грохочения При Круговых И Прямолинейных Колебаниях

Cited by 2 publications

References 0 publications

Special Modes of AC Drives Operation in the Mining Industry

Special Modes of AC Drives Operation in the Mining Industry

The probability of particles screening on the screen, taking into account the interaction of particles over the meshes of the sieve

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