Abstract
The conveyor belts are widely used and can be found, for example, in the underground and surface mining industry as well as in other industries involving the transport of various products, materials, etc. The need to ensure the transport of various products, materials, involves the use of conveyor belts in normal environments as well as in environments with a potentially explosive atmosphere. When used in potentially explosive atmospheres, conveyor belts shall not be sources of ignition for the explosive atmospheres generated by gases, vapors, flammable mists and/or combustible dusts in the mixture with the air. This involves the use of conveyor belts in a particular construction, compliance with the applicable essential safety and health requirements as well as granting a special attention to the identification/selection of types suitable for the specific field application. The purpose of the paper is to highlight the importance of testing by accredited laboratory tests, the flammability properties of conveyor belts intended for use in potentially explosive atmospheres, in order to easily identify/select, by end users, the types of conveyor belts adequate for specific application.
Highlights
IntroductionThe need to ensure the transport of various materials, products, etc., has led to the occurrence, realization, development and use in practice of the transport systems, which include conveyors, which depending on the basic component with effective role in transporting a material, product could be with scrapers or belt
The need to ensure the transport of various materials, products, etc., has led to the occurrence, realization, development and use in practice of the transport systems, which include conveyors, which depending on the basic component with effective role in transporting a material, product could be with scrapers or belt.Given the diversity of materials, products transported, conveyors, both with scrapers and belts can be found in most industries
The paper deals aspects related to the importance and the need to test by standardized test methods the properties of the flammability of conveyor belts for use in potentially explosive environments, presenting the methods and test stands that allow testing these properties
Summary
The need to ensure the transport of various materials, products, etc., has led to the occurrence, realization, development and use in practice of the transport systems, which include conveyors, which depending on the basic component with effective role in transporting a material, product could be with scrapers or belt. In the context of the theoretical aspects mentioned above, ensuring a level of safety and health, as high as possible, involves the use of conveyor belts that during their operation do not generate ignition sources for explosive atmospheres. To ensure this desideratum, it is necessary, in a first stage, to determine by accredited laboratory tests the properties of the conveyor belts on flammability, resistance to friction on the drum, electrostatic charging with electrostatic charges, based on the results obtained, selection of suitable conveyor belts for the application specific
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