The geometric shape of the transported material batches in the vertical branch of a belt conveyor.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F24%3A10252048" target="_blank" >RIV/61989100:27230/24:10252048 - isvavai.cz</a>

Result on the web

<a href="https://www.wmcaus.org/files/WMCAUS2023_Book.pdf" target="_blank" >https://www.wmcaus.org/files/WMCAUS2023_Book.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/202439607002" target="_blank" >10.1051/matecconf/202439607002</a>

Result language

angličtina

Original language name

The geometric shape of the transported material batches in the vertical branch of a belt conveyor.

Original language description

Loose materials, whether natural or artificial, must be handled in various areas of industry both in the horizontal and vertical planes. The requirement to transport the necessary volume or weight of material quantity to a specific offtake point places demands on the optimal selection, perfect design and precise implementation of the transport equipment. Of the whole range of continuously operating transport equipment, belt conveyors are the most widely used type for the transport of loose materials in practice. Despite a number of advantages, belt conveyors also have some shortcomings, among which a limited inclination angle for transport can be included, if a conveyor of standard construction is used as a load-bearing element. Transport above the limit angle of transport inclination provided using belt conveyors can be done in several ways. If we omit the methods based on an increase in the contact force of the transported material in relation to the surface of the conveyors belt and increase in the coefficient of friction, we will focus only on the method based on the principle of preventing the movement of the transported grains on the surface of the conveyors belt. This principle uses transverse cleats that prevent the movement (sliding or rotation) of material grains along the entire length of the conveyor belt, which is inclined at a high angle to the horizontal plane. Material grains are transported on the surface of a conveyor with cleats, distributed with a regular spacing along the entire length of the endless loop of the conveyor belt. To prevent material grains from falling of such a belt, corrugated sidewalls are fitted on both edges of the conveyor belt. This paper describes two variants that take into account the mutual position of the cleats in relation to the corrugated sidewalls. For each of the variant, the relationship is given with which it is possible to analytically quantify the volume of the bulk loose material batch that is spread over the area of the cleat in the vertical section of this conveyor belt design. The results of the measured values concerning the height of the loose material pile that were taken using laboratory instruments are listed in the tables and compared with the theoretically calculated values. Key data that must be known to calculate the pile height, and the volume of the transported material batch represent the exact value of the angle of repose for the loose material. The angle of repose of a particular loose material does not acquire a constant size, as it changes from its maximum (static angle of repose) depending on the shaking, flattening or absorbing liquid to its minimum (surcharge angle). The paper presents geometric shapes of batches for the transported material used for both limit values of the angle of repose.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MATEC Web of Conferences. Volume 396

ISSN

2261-236X

e-ISSN

2261-236X

Volume of the periodical

1

Issue of the periodical within the volume

2024

Country of publishing house

FR - FRANCE

Number of pages

11

Pages from-to

07002

UT code for WoS article

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EID of the result in the Scopus database

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