The cargo movement model by the screw conveyor surfaces with the rotating casing

Rogatynskyi, R.M.; Hevko, Ivan; Diachun, A. Y.; Rogatynska, Olena; Melnychuk, Andrii

doi:10.33108/visnyk_tntu2018.04.034

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…Article [5] examines the horizontal and inclined position of the screw, namely its angular parameter. This makes it possible to choose the speed of rotation of the casing in accordance with the conditions of transportation and the characteristics of the bulk cargo, while simultaneously increasing the efficiency of transportation.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Construction of mathematical model of particle movement by an inclined screw rotating in a fixed casing

Volina,

Pylypaka,

Kalenyk

et al. 2023

EEJET

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Screw conveyors are used to move bulk materials vertically upwards, horizontally, and at an angle to the horizon. The processes that take place when particles are moved by a screw conveyor in vertical and horizontal directions have been studied. There is a significant difference between them: for transportation in the vertical direction, the necessary conditions must be ensured (sufficient angular speed of rotation of the screw), and for horizontal transportation, the movement of the particle occurs at any angular speed of rotation of the screw. Therefore, when changing the inclination of the axis of the screw, there comes a moment when transportation becomes possible, while it was impossible in the vertical direction. This paper considers the movement of a particle under the condition that it simultaneously contacts two surfaces: the moving surface of the screw and the stationary surface of the cylindrical casing in which the screw rotates. Their common line along which the particle slides is a helical line – the periphery of the screw. The particle slides along the helical line of the rotating screw, i.e., it is in relative motion with respect to it. At the same time, it slides along the surface of the casing, relative to which it is in absolute motion. The trajectory of the particle's absolute motion is its sliding track on the casing surface. When constructing differential equations of the relative motion of particles, the forces applied to the particle were taken into account. The initial position was taken to be the vertical direction of the screw to transport the particle upwards. If an auger in a cylindrical casing is tilted from the vertical direction to a certain angle, then all applied forces (except the force of weight) will also tilt to this angle. On the basis of this, generalized differential equations of the relative motion of a particle during its transportation by an inclined screw were built. They made it possible to derive a generalized mathematical model of the movement of a particle by an inclined screw that rotates inside a fixed casing

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Construction of mathematical model of particle movement by an inclined screw rotating in a fixed casing

Volina,

Pylypaka,

Kalenyk

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…Operating conditions, which affect the performance of screw conveyors by using a discrete element method (DEM) to simulate single-flight screw conveyors with periodic boundary conditions, are considered in [18][19][20]. In the works of [21][22][23] mathematical models of the process of feeding bulk materials into bunkers of screw conveyors are proposed, and operating modes of inclined screw conveyors are considered, allowing to develop their new designs with a justification of rational parameters. The analysis of known works shows that a considerable reduction in the damage caused to agriculturallyproduced materials can be achieved by employing elastic surfaces, which are attached to the screw blade.…”

Section: Introductionmentioning

confidence: 99%

Design development and study of an elastic sectional screw operating tool

et al. 2021

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The results of an elastic sectional screw operating tool development and its production technique are presented in the article under consideration. The operating tool has been made to fix the elastic sections, providing the transportation of bulk materials of agricultural production, in order to ensure their minimal damage and the process minimal power capacity. The article presents constructed regression dependencies and response surfaces for the effects of the design, kinematic and technological parameters of a sectional screw operating tool on power consumption and the damage rate of grain material in the process of its transportation. As the result of the conducted experimental research, authors came to a conclusion that the arrangement of an elastic auger without a gap between its peripheral part and the inner surface of the guiding tube significantly reduces vibrations in the process of conveying bulk material.

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The study of interaction parameters of the elastic brush screw working body fibers with the spherical surfaces of the grain material

Diachun,

Hevko,

Stanko

et al. 2023

Visnyk TNTU

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The article presents the design of the elastic brush screw working body of the screw conveyor, which makes it possible to reduce mechanical damage to grain, reduce dangerous loads caused by forced rolling when grain material is chocked during transportation. The relationship between the design parameters of elastic brush screw working bodies fibers and force loads on grains with elements of spherical surfaces and the conditions of their chocking during transportation is established. The calculation scheme for determining the parameters of grain transportation by an elastic brush screw working body is presented. The equation for determination of the allowable external load on the grain in the perpendicular direction to the flights of the elastic brush screw working body during transportation in the conveyor is derived. The condition of grain chocking between the fibers and the inner surface of the screw conveyor housing is determined.

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The cargo movement model by the screw conveyor surfaces with the rotating casing

Cited by 4 publications

References 1 publication

Construction of mathematical model of particle movement by an inclined screw rotating in a fixed casing

Construction of mathematical model of particle movement by an inclined screw rotating in a fixed casing

Design development and study of an elastic sectional screw operating tool

The study of interaction parameters of the elastic brush screw working body fibers with the spherical surfaces of the grain material

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